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Sensors the vehicles Sensory System

Ourphilosophy

Vehicle electronics are constantly gaining in significance. Here,

sensors are the vehicles sensory system for travel, angle, speed,

velocity, acceleration, vibration, pressure, flow rate, gas con-

centration, temperature and other influencing variables. Their

signals have, in the meantime, become indispensable for many con-

trol and regulating functions of the various management systems

for engine and vehicle control, safety and comfort. Electronic data

processing has ultimately made it possible to evaluate the stated

influencing variables faster, and to condition them for the required

vehicle functions.

These sensors, which have demonstrated their value in millions

of vehicles covering numerous kilometers under rough vehicle

service conditions, also harbor a tremendous potential for industrial

applications. Particularly in those areas dependent on high reliab-

ility, and where low prices can be achieved through high-volume

production.

The areas in which they can be used are almost limitless: wherever

tests, closed and open-loop controls, and monitoring are required;

wherever computers have to be fed with physical data, or even

simply wherever automatic switch-on of the heating is required in

the cold or of the air conditioner when temperatures climb.

Constant further development and refinement of the sensors by

Bosch, including their miniaturization, means that Bosch is

well equipped for tomorrows challenges and is able to actively

participate in shaping state-of-the-art technology.

Our philosophy

With the quality, value for money and function of our products, we

wish to set standards and capture a peak position in the market. By

working towards economical solutions, we reinforce our innovative

strength and thus our future. For our customers, we are an active,

receptive partner who is aware of their goals and gives complete

satisfaction. We react rapidly and flexibly to the requirements

of our customers and colleagues. We accomplish our agreed tasks

creatively, with the emphasis on quality and on the protection

of the environment.

Our staff

We prefer target-oriented team-work, and treat problems as an

opportunity for continual improvement. All management personnel

delegate responsibility and support their workers by stipulating

clear targets and by the appropriate control of resources. They set

an example in putting our philosophy into practice.

Our organization

Bosch is never far from its clients. We are close to vehicle manu-

facturers, working in close cooperation with them in the devel-

opment of new solutions. But we are also close to the users of

sensors, who can enjoy competent service all over the world from

nearly 10,000 Bosch Service Agents. Bosch has agents in 130 coun-

tries. In our international alliance, we develop and produce sensors

in Europe, the USA and Asia.

Our technology

From drafting through design to production, we use the latest

techniques and facilities, such as

Finite-element calculations,

Fully automated production lines,

Quality assurance by computer-aided, statistical closed-loop

process control and 100 % testing of all parameters which are

relevant for correct function.

Our contribution to environmental protection

Our sensors are made from materials which can be recycled, which,

thanks to thermal and magnetic separation processes, can be

reintroduced into the material cycle. We use re-cyclable cardboard

packaging containing a high proportion of recycled paper, or, on

request, reusable packaging.

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We reserve the right to make technical changes.

Angular-position sensors

8 Steering-angle sensor

12 Throttle valve angle sensor

Yaw sensors

14 Yaw sensor with CAN interface

Acceleration sensors

30 Piezoelectric vibration sensor

36 Signal evaluation for vibration sensors

Pressure sensors

38 Differential pressure sensor

44

Absolute-pressure sensor

64 High-pressure sensor

78 Fressure sensors for CNG and LPG

NTC temperature sensors: -40 to 130C

88 NTC temperature sensors

Air-mass meters

96 Hot-film air mass meter, type HFM 5



Lambda sensors

General Information

112 Type LSU 1

116 Type LSU 4.9

120 List of part numbers

123 Bosch contacts worldwide

124 Inquiry data sheet

Rotational-speed sensors

18 Hall speed sensor

Content

3 Techniques and applications

6 CAN-Bus

2013 | 2014 Bosch Automotive Aftermarket

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2 | Sensors

de

Elektronischer

Katalog fr Kraft-

fahrzeug-Ausrstung

en

Electronic Catalogue

for Automotive Parts

fr

Catalogue lectronique

de pices dtaches

et de rechange

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Catalogo elettronico

per ricambi di

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es

Catlogo electrnico

de los componentes

del automvil

Einfacher und schnel-

ler Zugriff auf Kfz-

Ausrstungsdaten von

Bosch in

18 Sprachen.

Easy and quick access to

vehicle application data

from Bosch in 18 langu-

ages.

Accs facile et rapide

aux donnes de rechange

automobile Bosch

en 18 langues.

Ricerca semplice e

veloce dei dati Bosch di

equipaggiamento veicoli

in 18 lingue.

Fcil y rpido acceso

a la informacin de

equipamiento Bosch para

vehculos en 18 idiomas.

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Bosch Automotive Aftermarket 2013 | 2014

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Sensors | 3

Techniques and applications

This catalog features the most important

technical data required for selecting a given

sensor. To date, the sensors listed have all

been used in automotive applications, but

their universal and highly versatile charac-

teristics also make them ideally suitable for

industrial applications. For instance in:

Manufacturing engineering

Mechanical engineering

Automation

Materials handling and conveying

Heating and air-conditioning

Chemical and process engineering

Environmental and conservation

technology

Installation and plant engineering

Brief descriptions and examples of

application are to be found in the Table

below.

For the applications listed below, prior

clarification of the technical suitability is

imperative. This Catalog only lists those

products which are available from series

manufacture. If your problem cannot be

solved with this range of products, please

inform of us of your requirements using the

Enquiry Data Sheet.

Sensors Automotive application Examples of non-automotiveapplications

Angular position sensorsmeasure simple angular

settings and changes in angle.

Throttle-valve-angle measurement for engine

management on gasoline (SI) engines.

Door/window opening angle, setting-lever angles

in monitoring and control installations.

Rotational-speed sensorsmeasure rotational

speeds, positions and angles in excess of 360.

Wheel-speed measurement for ABS/TCS, engine

speeds, positioning angle for engine management,

measurement of steering-wheel angle, distance

covered, and curves/bends for vehicle navigation

systems.

Proximity or non-contact measurement of rotational

speed, displacement and angular measurement,

definition of end and limit settings for industrial

machines, robots, and installations of all types.

Spring-mass acceleration sensors measure chan-

ges in speed, such as are common in road traffic.

Registration of vehicular acceleration and

deceleration. Used for the Antilock Braking System

(ABS) and the Traction Control System (TCS).

Acceleration and deceleration measurement for safety,

control, protective systems in lifts, cable railways,

fork-lift trucks, conveyor belts, machines, wind power

stations.

Bending-beam acceleration sensorsregister

shocks and vibration which are caused by impacts

on rough/unpaved road surfaces or contact with

kerbstones.

For engine management, detection of vibration on

rough/unpaved road surfaces.

Forced switch-off for machines, industrial robots,

manufacturing plant, and gaming machines in case of

sudden acceleration or deceleration caused by shock

or impact.

Piezoelectric acceleration sensorsmeasure

shocks and vibration which occur when vehicles

and bodies impact against an obstacle.

Impact detection used for triggering airbags

and belt tighteners.

Detection of impact in monitoring/surveillance

installations, detection of foreign bodies in combine

harvesters, filling machines, and sorting plants.

Registration of score during rifleman competitions.

Yaw sensors measure skidding movements, such

as occur in vehicles under road traffic conditions.

Used on the vehicle dynamics control (Electronic

Stability Program, ESP) for measuring yaw rate

and lateral acceleration, and for vehicle navigation

sensors.

Stabilization of model vehicles and airplanes, safety

circuits in carousels and other entertainment devices

on fairgrounds etc.

Piezoelectric vibration sensors measure

structure-borne vibrations which occur at engines,

machines, and pivot bearings.

Engine-knock detection for anti-knock control in

engine-management systems.

Machine-tool safety, cavitation detection, pivot-

bearing monitoring, structure-borne-noise detection

in measurement systems.

Absolute-pressure sensors measure the pressure

ranges from about 50 % to 500 % of the earths

atmospheric pressure.

Manifold vacuum measurement for engine manage-

ment. Charge-air-pressure measurement for charge-

air pressure control, altitude-pressure-dependent fuel

injection for diesel engines.

Pressure control in electronic vacuum cleaners,

monitoring of pneumatic production lines, meters for

air-pressure, altitude, blood pressure, manometers,

storm-warning devices.

Differential-pressure sensors measure

differential gas pressures, e.g. for pressure-

compensation purposes.

Pressure measurement in the fuel tank,

evaporative-emissions control systems.

Monitoring of over and underpressure. Pressure

limiters, filled-level measurement.

Temperature sensors measure the temperature of

gaseous materials and, inside a suitable housing,

the temperatures of liquids in the temparature

range of the earths atmosphere and of water.

Display of outside and inside temperature, control

of air conditioners and inside temperature, control of

radiators and thermostats, measurement of lube-oil,

coolant, and engine temperatures.

Thermometers, thermostats, thermal protection, frost

detectors, air-conditioner control, temperature and

central heating, refrigerant-temperature monitoring,

regulation of hot-water and heat pumps.

Lambda oxygen sensors determine the

residual oxygen content in the exhaust gas.

Control of A/F mixture for minimization of pollutant

emissions on gasoline and gas engines.

Pollutants reduction during combustion, smoke

measurement, gas analysis.

Air-mass meters measure the flow rate of gases. Measurement of the mass of the air drawn in

by the engine.

Flow-rate measurement for gases on test benches

and in combustion plant.


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4 | Sensors

IP degres of protection

Valid for the electrical equipment

of road vehicles as per DIN 40 050 (Part 9).

Protection of the electrical equipment inside the enclosure against the effects of solid foreign objects including dust.

Protection of the electrical equipment inside the enclosure against the ingress of water.

Protection of persons against contact with dangerous parts, and rotating parts, inside the enclosure.

If a characteristic numeral is not given, it must be superseded by the letter X (i. e. XX if both characteristic numerals are not given).

The supplementary and/or additional letters can be omitted at will, and need not be superseded by other letters.

1)The supplementary letter K is located either directly after the first characteristic numerals 5 and 6,

or directly after the second characteristic numerals 4, 6 and 9.

2)During the water test. Example: IP16KB protection against the ingress of solid foreign bodies with diameter 50 mm,

protection against high-pressure hose water, protection against access with a finger.

Structure of the IP code

IP 2 n1) 3 n2) C M

Code letters

First characteristic numeral

0...6 or letter X

Second characteristic numeral

0...9 or letter X

Additional letter (optional)

A, B, C, D

Supplementary letter (optional)

M, S

K1)


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Sensors | 5

1st charac-

teristic

numeral

and sup-

plementary

letter

K

Protection of

electrical equip-

ment against

ingress of solid for-

eign objects

Persons 2nd charac-

teristic

numeral

and sup-

plementary

letter

K

Protection of elec-

trical equipment

against the ingress

of water

Additional

letter

(optional)

Protection of

persons against

contact with

hazardous parts

Additional

letter

(optional)

0 Non-protected Non-protected 0 Non-protected A Protection against

contact with back

of hand

M Movable parts of

the equipment are

in motion 2)

1 Protection against

foreign bodies

50 mm

Protection against

contact with back

of hand


vertically dripping

water

B Protection against

contact with finger

S Movable parts of

the equipment are

stationary 2)


foreign bodies

12.5 mm

Protection against

contact with finger


dripping water

(at an angle of 15)

C Protection against

contact with tool

K For the electrical

equipment of road

vehicles


foreign bodies

2.5 mm

Protection against

contact with tool


splash water

D Protection against

contact with wire


foreign bodies

1.0 mm

Protection against

contact with wire


spray water

5K Dust-protected Protection against

contact with wire

4K Protection against

high- pressure spray

water

6K Dust-proof Protection against

contact with wire


jets of water


powerful jets of

water


high-pressure jets

of water


temporary immer-

sion


continuous immer-

sion


high-pressure/

steam-jet cleaners

Comments IP code


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6 | Sensors

CAN-BusController Area Network

Present-day motor vehicles are equipped

with a large number of electronic control

units (ECUs) which have to exchange large

volumes of data with one another in order

to perform their various functions. The con-

ventional method of doing so by using dedi-

cated data lines for each link is now reaching

the limits of its capabilities. On the one

hand, it makes the wiring harnesses so com-

plex that they become unmanageable, and

on the other the finite number of pins on

the connectors becomes the limiting factor

for ECU development. The solution is to be

found in the use of specialized, vehicle-com-

patible serial bus systems among which the

CAN has established itself as the standard.

Applications

There are four areas of application for CAN in

the motor vehicle, each with its own individual

requirements:

Real-time applications

Real-time applications, in which electrical

systems such as Motronic, transmission-shift

control, electronic stability-control systems are

networked with one another, are used to control

vehicle dynamics. Typical data transmission rates

range from 125 kbit/s to 1 Mbit/s (high-speed

CAN) in order to be able to guarantee the real-

time characteristics demanded.

Multiplex applications

Multiplex applications are suitable for situations

requiring control and regulation of body-compo-

nent and luxury/convenience systems such as

air conditioning, central locking and seat adjust-

ment. Typical data transmission rates are be-

tween 10 kbits and 125 kbit/s (low-speed CAN).

Mobile-communications applications

Mobile-communications applications connect

components such as the navigation system,

cellular phone or audio system with central

displays and controls. The basic aim is to

standardize control operations and to condense

status information so as to minimize driver dis-

traction. Data transmission rates are generally

below 125 kbit/s; whereby direct transmission of

audio or video data is not possible.

Diagnostic applications

Diagnostic applications for CAN aim to make

use of existing networking for the diagnosis of

the ECUs incorporated in the network. The use

of the K line (ISO 9141), which is currently

the normal practice, is then no longer necessary.

The data rate envisaged is 500 kbit/s.

Bus configuration

CAN operates according to the multimaster prin-

ciple, in which a linear bus structure connects

several ECUs of equal priority rating (Fig. 1).

The advantage of this type of structure lies in

the fact that a malfunction at one node does

not impair bus-system access for the remaining

devices. Thus the probability of a total system

failure is substantially lower than with other

logical architectures (such as ring or active star

structures). When a ring or active star structure

is employed, failure at a single node or at the

CPU is sufficient to cause a total failure.

Content-based addressing

Addressing is message-based when using CAN.

This involves assigning a fixed identifier to each

message. The identifier classifies the content of

the message (e.g., engine speed). Each station

processes only those messages whose identi-

fiers are stored in its acceptance list (message

filtering, Fig. 2). Thus CAN requires no station

addresses for data transmission, and the nodes

are not involved in administering system configu-

ration. This facilitates adaptation to variations

in equipment levels.

Logical bus states

The CAN protocol is based on two logical states:

The bits are either recessive (logical 1) or

dominant (logical 0). When at least one station

transmits a dominant bit, then the recessive

bits simultaneously sent from other stations are

overwritten.

Priority assignments

The identifier labels both the data content and

the priority of the message being sent. Identifiers

corresponding to low binary numbers enjoy a

high priority and vice versa.

Bus access

Each station can begin transmitting its most im-

portant data as soon as the bus is unoccupied.

When several stations start to transmit simul-

taneously, the system responds by employing

Wired-AND arbitration to sort out the resulting

contentions over bus access. The message with

the highest priority is assigned first access, with-

out any bit loss or delay. Transmitters respond

to failure to gain bus access by automatically

switching to receive mode; they then repeat the

transmission attempt as soon as the bus is free

again.

Message format

CAN supports two different data-frame formats,

with the sole distinction being in the length of

the identifier (ID). The standard-format ID is

11 bits, while the extended version consists of

29 bits. Thus the transmission data frame con-

tains a maximum of 130 bits in standard format,

or 150 bits in the extended format. This ensures

miminal waiting time until the subsequent trans-

mission (which could be urgent). The data frame

consists of seven consecutive bit fields (Fig. 3):

Start of frame

indicates the beginning of a message and

synchronizes all stations.

Arbitration field

consists of the messages identifier and an

additional control bit. While this field is being

transmitted, the transmitter accompanies the

transmission of each bit with a check to ensure

that no higher-priority message is being trans-

mitted (which would cancel the access autho-

rization). The control bit determines whether

the message is classified under data frame or

remote frame.

Control field

contains the code for number of data bytes in

Data Field.

Data fields

information content comprises between

0 and 8 bytes. A message of data length 0 can be

used to synchronize distributed processes.

CRC field

(Cyclic Redundancy Check) contains the check

word for detecting possible transmission inter-

ference.

Ack fieldcontains the acknowledgement signals with

which all receivers indicate receipt of non-

corrupted messages.

End of frame

marks the end of the message.


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Transmissionshift controlStation 1

EnginemanagementStation 2

ABS/TCS/ESPStation 3

Instrument clusterStation 4

CAN

Makeready

Sendmessage

CANStation 1

CANStation 2

Bus

CANStation 3

CANStation 4

Accept

Selection

Reception

Accept

Selection Selection

Reception Reception

Data FrameMessage Frame

Start of Frame

Arbitration Field

Control Field

Data Field

CRC Field

ACK Field

End ofFrame

InterFrameSpace

1*1

012* 6* 16* 2* 7* 3* IDLEIDLE 0...64*

Sensors | 7

1Linear bus structure 2Message fittering 3Message format

Transmitter initiative

The transmitter will usually initiate a data

transfer by sending a data frame. However, the

receiver can also request data from the trans-

mitter. This involves the receiver sending out

a remote frame. The data frame and the

corresponding remote frame have the same

identifier. They are distinguished from one

another by means of the bit that follows the

identifier.

Error detection

CAN incorporates a number of monitoring

features for detecting errors. These include:

15 Bit CRC (Cyclic Redundancy Check): Each

receiver compares the CRC sequence which

it receives with the calculated sequence.

Monitoring: Each transmitter compares

transmitted and scanned bit.

Bit stuffing: Between start of frame and

the end of the CRC field, each data frame

or remote frame may contain a maximum

of 5 consecutive bits of the same polarity. The

transmitter follows up a sequence of 5 bits

of the same polarity by inserting a bit of the

opposite polarity in the bit stream; the re-

ceivers eliminate these bits as the messages

arrive.

Frame check: The CAN protocol contains

several bit fields with a fixed format for verifi-

cation by all stations.

Error handling

When a CAN controller detects an error, it aborts

the current transmission by sending an error

flag. An error flag consists of 6 dominant bits; it

functions by deliberately violating the conven-

tions governing stuffing and/or formats.

Fault confinement with local failure

Defective stations can severely impair the ability

to process bus traffic. Therefore, the CAN cont-

rollers incorporate mechanisms which can

distinguish between intermittent and permanent

errors and local station failures. This process

is based on statistical evaluation of error con-

ditions.

Implementations

In order to provide the proper CPU support for

a wide range of different requirements, the semi-

conductor manufacturers have introduced imple-

mentations representing a broad range of per-

formance levels. The various implementations

differ neither in the message they produce, nor

in their arrangements for responding to errors.

The difference lies solely in the type of CPU

support required for message administration.

As the demands placed on the ECUs processing

capacity are extensive, the interface controller

should be able to administer a large number of

messages and expedite data communications

with, as far as possible, no demands on the

CPUs computational resources. Powerful CAN

controllers are generally used in this type of ap-

plication. The demands placed on the controllers

by multiplex systems and present-day mobile

communications are more modest. For that

reason, more basic and less expensive chips are

preferred for such uses.

Standardization

CANs for data exchange in automotive applica-

tions have been standardized both by the ISO

and the SAE in ISO 11519-2 for low-speed

applications 125 kbit/s and in ISO 11898 and

SAE J 22584 (cars) and SAE J 1939 (trucks and

busses) for high-speed applications >125 kbit/s.

There is also an ISO standard for diagnosis via

CAN (ISO 15765 Draft) in the course of pre-

paration.


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8 | Angular-position sensors

True Power on function Multiturn capability CAN interface

Design and operation

The steering column drives two measure-ment gears by way of a gear wheel. Mag-

nets are incorporated into the measure-ment gears. AMR elements, the resistance

of which changes as a function of themagnetic field direction, detect the angu-

lar position of the magnets. The analogmeasured values are supplied to the micro-

processor via an A/D converter. The meas-urement gears have different numbers of

teeth and their rotational position thuschanges at different rates. The total steer-

ing angle can be calculated by combiningthe two current angles. After several turns

of the steering wheel, the two measure-ment gears have returned to their original

positions. This measurement principlecan therefore be used to cover a measur-

ing range of several turns of the steeringwheel without the need for a revolution

counter. The steering angle is output as anabsolute value over the total angle range

(turning range) of the steering column. Aspecial feature of the sensor is the correct

angle output immediately after switchingon the ignition without moving the steering

wheel (True Power On). Steering angle andvelocity are output via CAN.

Application

The steering-angle sensor was developedfor use in electronic stability programs

(ESP). Integrated plausibility checks andspecial self-diagnosis functions make the

steering-wheel angle sensor suitable foruse in safety systems.

Further areas of application

Using the standardized CAN bus, the

steering wheel angle information can beutilized, for example for chassis control,

navigation and electrical power- steeringsystems.

Different types of mechanical connectionand electrical interface versions are avail-

able on request.

Technical data

Storage temperature - 40 ...+ 50 C

Pin assignment

Pin 1 GroundPin 2 12 V

Pin 3 CAN HighPin 4 CAN Low

Pin 5 -Pin 6 -

Pin 7 -

4 5

1 2 3

6 7

Steering-angle sensorMeasurement of angles from -780 to +780

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Angular-position sensors | 9

Attachment options

A Steering-column switchB Steering column

A

B


1 Steering column2 AMR measurement cells

3 Gear wheel with m teeth4 Evaluation electronics

5 Magnets6 Gear wheel with n>m teeth

7 Gear wheel with m+1 teeth

1

2

36

7

5

4

Characteristic curve

Lenkradwinkel

l inksdrehend rechtsdrehend

Ausgangssignal

0700 -780

-780

0

700

Block diagram

CAN-Driver

Micro-processor

A/Dconverter

AMRelement

AMRelement

CAN-Bus

Steering-angle sensorMeasurement of angles from -780 to +780

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Angular-position sensors | 13

Technical data

Useful electrical angle range degreese86

Useful mechanical angle range degreese96

Angle between internal stops

(must not be reached when fitted) degreesi96

Direction of rotation Any

Total resistance (term. 1-2) kO 2+20 %

Wiper protective resistor

(wiper in zero position, term. 2-3) O 710 ... 1380

Operating voltageu V 5Load Ohmic res.

Permissible wiper current zA e10

Voltage ratio from stop to stop - characteristic curve 1 0,05 = UA / UV = 0,95

Slope of nominal characteristic curve deg! 0,009375

Operating temperature - 40 C ...+ 130 C

Approximate value for permissible

vibration acceleration m/s2 e800

Service life (rotary cycles) Mill. 2

Figure

Dimensional drawings

R5,5

51

9,5

28

Pin 1Pin 2Pin 3

40

11,5

32

44

+0,15,0

+0,124,5

+0,1

+0,2

4,5

16,1

4,6

9,1

2

M4

24,5

15,5

hll15,1

M4


Circuit diagram

Part number 0 280 122 024

Throttle valve angle sensorMeasurement of angles up to 86

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14 | Yaw sensors

Flexible and cost-effectivesensor cluster with highlyintegrated electronics.

Modular concept for differentintegration stages.

Multiple use of sensor signalsfor future highly dynamic safetyand convenience systems.

Optimised monitoring andsafety concept.

Design

The sensor cluster uses a new generationof micromechanical elements for the

measurement and digital processing ofangular velocity and acceleration. Based

on PCB technology, they form a modularhardware and software concept with many

new safety features providing a versatileand reliable solution for a wide variety of

motor-vehicle applications.

Principle of operation

The new micromechanical element for

yaw-rate measurement is a member of theestablished group of vibrating gyrometers

operating on the Coriolis principle (CVG= Coriolis Vibrating Gyros). It consists of

an inverse tuning fork with two mutuallyperpendicular linear vibration modes, drive

circuit and evaluation circuit. A comb-likestructure provides electrostatic drive and

evaluation. The Coriolis acceleration ismeasured electrostatically by way of en-

gaging electrodes. The measurement ele-ment is made up of two masses connected

by way of a spring with the same reso-nance frequency for both vibration modes.

This is typically 15 kHz and thus outsidethe normal vehicle interference spectrum,

making it resistant to disturbance accelera-

tion. The evaluation circuit ASIC and themicromechanical measurement element

are located in a prefabricated housing with20 connections (Premold 20).

The design of the acceleration moduleis comparable to that of the yaw-sensor

module and consists of a micromechanicalmeasurement element, an electronic evalu-

ation circuit and a housing with 12 connec-tions (Premold 12).

Operating principle 2

The spring-mass structure is moved in its

sensitive axis by external acceleration andevaluated using a differential capacitor in

the form of a comb structure.

Application

The introduction of the ESP system, thelink with other chassis convenience sys-tems and the development of advanced ve-

hicle stabilization systems gave rise to theneed for inertial signals to meet with exact-

ing demands, particularly in terms of signalquality and stability, as well as additional

measurement axes with a high degree ofreliability. Bosch therefore developed a

third generation, the versatile and inexpen-sive sensor cluster DRS MM3.x to meet the

requirements of functions such as the hill-

starting assistant, automatic parking brake,adaptive cruise and distance control, four-

wheel drive, rollover intervention, elec-tronic active steering and spring-damper

control systems.DRS-MM3.7k is the basic version of the

MM3 generation for ESP applications. Itcomprises a yaw sensor and an integrated

lateral acceleration module.

Explanation of characteristic quantities

O Yaw rateg Acceleration due to gravity 9.8065 m/s2

Yaw sensor with CAN interfacewith micromechanical acceleration sensor

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Yaw sensors | 15

Technical data

Yaw sensor/type DRS-MM 3.7K

Maximum yaw rateMabout axis of rotation (Z-axis) +100 /s

Minimum resolution DM +0,1 /s

Sensitivity 200 LSB//s

Sensitivity tolerance over service life 1) e5 %

Offset error over service life 1) e2 /s

Non-linearity, max. deviation from optimum linear approximation e1 /s

Start-up time e1 s

Electrical noise (measured with 100 Hz bandwidth) e0,2 /&

Linear acceleration sensor

Maximum accelerationa +1,8gSensitivity tolerance over service life 1) e5 %

Offset e0,03g

Offset error over service life 1) e0,1g

Electrical noise

(measured with 100 Hz bandwidth) e0,01

General information

Operating-temperature range -40 ... 85 C

Supply-voltage range 7 ... 18 V

Current consumption at 12V < 130 mA

1) Service life: 6,000 h, over 15 years.


O Angular velocity (to be measured),andOare the signals that the (illustrated) sensor supplies, where:O Angular velocity Acceleration in y direction = Lateral acceleration Acceleration in x direction = Longitudinal acceleration

+Z Sensor

+ay

+YSe

nsor

+ax

+XSensor

+

Drive frame

Coriolis frame

Detection frame

+

Z-Axis

+Detection

Detection

+Drive

Drive

Block diagram

EEPROM

Micro-controller

CAN-Driver CAN-L

GND

CAN-H

UBAT

CAN-L

CAN-Hoptional EMI-Filter

optionalCAN-circuitry

Voltage-regulator

+Oscillator

SPI RT1 RS1

VDD

RT2C1

C2

2

3

4

1

C3

RS2

SPI

SPI5V

5V

5V

5V

SensorelementYaw rate z

SensorelementAccelerationay1

SensorelementAccelerationax

Acceleration characteristic curve

upperlimitation

lowerlimitation

Code in LSB

18640

32768

46896

+1,8 1,8

Acceleration ay in g

0


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16 | Yaw sensors

Technical data

Yaw-rate offset e1,5 /s


Sensitivity 800 LSB/m/s2

Sensitivity 7845 LSB/g

Non-linearity, max. deviation

from optimum linear approximation e4 % FSO

Start-up time e0,25 s

Dynamics 15 Hz

General information

Storage-temperature range -40 ... 50 C

Supply voltage 12 V nominal

Accessories Part number

Connector TYCO 114-18063-014, MQS code A

Pin 114-18063-001

Catch TYCO C-208-15641

Figure

Dimensional drawing

F Direction of travel

S 4-pin connectorRa Reference axis

Rf Reference surfacePin 1 GND

Pin 2 CANLPin 3 CANH

Pin 4 12 V

79,3

32,7

35

62

80

6,2

Ra

Rf

12

32,1

61,7

42,8

S

F

4

2

3

1

Yaw rate characteristic curve

100

12768

upperlimitation

lowerlimitation

32768

52768

Code in LSB

+1000

Yaw Rate in /s



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Yaw sensors | 17

Technical data

Yaw-rate offset e3,5 /s


Sensitivity 7849 LSB/g

Start-up time e5 s

Dynamics 15 Hz

General information

Storage-temperature range -40 ... 85 C

Supply voltage 14 V nominal

Figure

Dimensional drawing

F Direction of travel

S 4-pin connectorRa Reference axis

Rf Reference surfacePin 1 GND

Pin 2 CANLPin 3 CANH

Pin 4 12 V

79,3

32,7

35

62

80

6,2

Ra

Rf

12

32,1

61,7

42,8

S

F

4

2

3

1

Yaw rate characteristic curve

100

12768

upperlimitation

lowerlimitation

32768

52768

Code in LSB

+1000

Yaw Rate in /s



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18 | Rotational-speed sensors

Precise, reliable digital meas-urement of rotational speed,angles and distances.

Non-contacting measurement. Hall IC in sensor with open col-lector output.

Not susceptible to contamina-tion.

Resistant to mineral-oil prod-ucts (fuel, engine oil).

Transmission of information onsensor signal quality.

Design

Hall sensors consist of a semiconductorwafer with integrated driver circuits (e.g.

Schmitt trigger) for signal conditioning, atransistor as output driver and a perma-

nent magnet. These are hermetically sealedin a plastic connector housing. In an active

rotational-speed sensor, magnets assumethe function of the sensor-ring teeth. The

magnets are integrated into a multiplerotor for example and are arranged with

alternating polarity around its periphery.The measuring cell of the active rotational-

speed sensor is exposed to the constantlychanging magnetic field of these magnets.

There is thus a constant change in themagnetic flux through the measuring cell

as the multiple rotor turns.

Application

Hall speed sensors are suitable for non-

contacting and thus wear-free rotational-speed measurement. Thanks to its com-

pact design and low weight, the activerotational-speed sensor can be installed at

or in a wheel bearing.

Installation instructions

- Standard installation conditions ensure

full sensor operating capacity. - Routeconnecting leads in parallel to minimise in-

terference. - Protect sensor against the de-structive effect of static discharge (CMOS

elements).


The principal sensor components are ei-

ther Hall elements or magneto-resistiveelements. Both elements generate a volt-

age which is governed by the magneticflux through the measuring element. The

voltage is conditioned in the active speedrange. In contrast to an inductive sensor,

the voltage to be evaluated is not a func-tion of the wheel speed. The wheel speed

can thus be measured almost until the

wheel has stopped.A typical feature of an active speed sen-sor is the local amplifier. This is integrated

into the sensor housing together with themeasurement cell. A two-core cable pro-

vides the connection to the control unit.The speed information is transmitted in

the form of a load-independent current.As with an inductive speed sensor, the

frequency of the current is proportional tothe wheel speed. This form of transmission

using conditioned digital signals is not sus-ceptible to inductive disturbance voltages

as is the case with the type of transmissionwith inductive speed sensors.


N=0 Static operation possible.N>0 Only dynamic operation possible.u Max. LOW output voltage withI Output current = 20 mA.K Supply current for Hall sensor.. fall time (trailing signal edge).: rise time (leading signal edge).

Hall speed sensor without cableDigital measurement of rotational speeds

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Technical data

Minimum trigger-wheel speed N 0 min.!

Maximum trigger wheel speed, forwards m 8000 1/min

Maximum trigger wheel speed, reverse m 4000 1/min

Maximum working air gap 1,5 mm

Minimum working air gap 0,5 mm

Rated supply voltage 5 V

Supply voltage range u 4,5...5,5 V

Supply current K Typically 5.0 mA

Output current I 0 ... 20 mAOutput saturation voltage j e0,5 V

Switching time .1) e1,3zs

Switching time .2) e17zs

Steady-state temperature in sensor and transition zone -40C...+150C

Steady-state temperature in connector zone -40C...+130C

1) Time from HIGH to LOW, measured between connections (0) and () from 90% to 10%.2) Time from LOW to HIGH, measured between connections (0) and () from 10% to 90%.3) -40...+150 C permissible for brief period.4) -40...+130 C permissible for brief period.

Figure


20

R7

23,

8

34,

5 1

90,2

7

6,7

+0,2

0

1 2 3

1

2

3R12

,5

17,95 00,35

13,9+0,20,3

58,

3

0,

35

0,

85

13,9+0,2



Hall speed sensor without cableDigital measurement of rotational speeds

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Technical data

The signal strength is governed by the working air

gap and the properties of the steel and multiple rotor.

Rated supply voltage 12 V

Supply-voltage rangeu 4,5 ... 12 V

Output current I 5,9 ... 16,8 mA

Sustained temperature in sensor and transition zone 1) -40 ...+ 150 C

Sustained temperature in connector zone -40 ...+ 115 C

Signal frequency 1 ... 2500 Hz

1) Short-term 40+170C permissible.


Connector housing 2-pin 2 264 420 424

Contact pins For;0,52,5 mm2; Content: 100 x 2 263 124 303

O-ring 2 260 210 308

Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.

Customer must provide mating connector/contacts.If a different connector is used, the cable must be sealed against the incidence of moisture.

Figure

Dimensional drawing

Pin 1 Supply voltage (white wire)

Pin 2 Signal (black wire)

10

46,110,8

6,7

R7

R10

18

28,1

185

8 14

20

18

36

19

215 120143

12

A

A


Hall speed sensorsDigital speed measurement

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30 | Acceleration sensors

Reliable detection of structure-borne sound to protect ma-chines and motors.

Piezoceramic element with highmeasurement sensitivity.

Sturdy compact design.


On account of its inertia, a mass exertscompressive forces on an annular piezocer-

amic element in the same rhythm as the vi-brations causing them. As a result of these

forces, charge transfer occurs within theceramic element and a voltage is gener-

ated between the upper and lower sides ofthe ceramic element. The voltage is tapped

via contact washers - often filtered andintegrated - and is available for use as a

measurement signal. Vibration sensors arebolted to the object to be measured so as

to relay the vibrations at the measurementlocation directly to the sensors.

Areas of application

- Knock control for internal-combustionengines

- Machine-tool protection- Cavitation detection

- Monitoring of pivot bearings- Anti-theft systems

Note

1 connector housing, contact pins and in-

dividual seals are required for a connector.Use must be made of genuine Tyco crimp-

ing tools for motor vehicle applications.


Sensitivityf Frequencyg Acceleration due to gravity

Measurement sensitivity

Each vibration sensor has individual trans-mission characteristics closely related to

the measuring sensitivity. The sensitivity isdefined as the output voltage per unit of

acceleration due to gravity (refer to char-acteristic curve). The production-related

sensitivity scatter is acceptable for applica-tions in which the main emphasis is on re-

cording the occurrence of vibrations ratherthan on their amplitude.

The low voltages supplied by the sensorcan be evaluated using a high-impedance

AC voltage amplifier.


The sensors must rest directly on theirmetal surfaces. Use must not be made

of packing plates, spring or toothed lockwashers for support. The contact surface

of the mounting hole must be of high qual-ity to ensure low-resonance coupling of

the sensors to the measurement location.The sensor cable is to be laid such that no

resonance vibration can occur. The sensormust not be allowed to have contact with

liquids for lengthy periods.

Application

Vibration sensors of this type are suitablefor detecting structure-borne vibration

occurring for example in motor-vehicle en-gines due to irregular combustion and in

machines. Thanks to their robust design,these vibration sensors can withstand even

the most severe operating conditions.

Evaluation

The signals from these sensors can be

evaluated with an electronic module.

Pin assignment

Pin 1, 2 Measurement signalPin 3 Screen, dummy; if provided

Piezoelectric vibration sensorMeasurement of structure-borne sound and acceleration

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32 | Acceleration sensors

Technical data

Vibration sensors 2-pole, without cable

Frequency range 3 ... 22 kHz

Self-impedance > 1 MO

Operating temperature range - 40 ...+ 150 C

Permissible sustained vibration e80g



Contact pins For;0.5...1.0 mm2; Contents: 100 x 1 928 498 056


Individual seal for;0.51.0 mm2; content: 10 x 1 928 300 599

Individual seal for;1.52.5 mm2; content: 10 x 1 928 300 600

Dummy plug For;1.5...2.5 mm2; Contents: 10 x 1 928 300 601


Figure

Dimensional drawing

51,8

26

13

8

,3

18

0,

424

20

22


Piezoelectric vibration sensorMeasurement of structure-borne sound and acceleration

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Acceleration sensors | 37

Figure

Dimensional drawing

M Marking Pin 1

M

0,5

10,7

1,14

1,1

4

0,5min.

3,8

1

1,8

6

11,4

12,56

1,27

Pin assignment

Pin assignment.Y Reference voltageu/2 (output +0.5mA load capacity)u Supply voltage 5 V~ EarthBF0/BF1/BF2/BF3*) Bandpass centre frequency settingG0/G1/G2*) Gain setting

KE1/2/3/4 Sensor inputsKI Signal integral output

KSA1/2/3*) Sensor selectionKTI/ADT Controlled input/test output

FM*) Measurement windowN.C. not connected

T0/T1/T2 Clock frequency selectionTP0/TP1/TP2 For clock purposes

X1 Clock supply*) TTL-compatible static inputs of microcomputer port driver

KTI/ADT

TP0

KSA1

KSA2

4 3 2 1 28 27 26

12 13 14 15 16 17 18

5

6

7

8

9

10

11

25

24

23

22

21

20

19

TP1

TP2

KI

MF

BF1

BF0

BF3

BF2

G0

G2

G1

T1

T0

T2

U

X1

n.c.

V

KE2 KE4

KE1 KE3 KSA3

U

V

SS

REF

CC195


F Frequency dividerG Rectifier

L FilterI Integrator

O OscillatorP Multiplexer

R Reference signalsS Sensor inputs

T Test pulse dividerV Amplifier

OUT Output.

.

R O F

T

4

P V L G I

OUT

1

.S

N

1

M

1


Signal evaluation for vibration sensorsSignal-evaluation module

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38 | Pressure sensors

High level of accuracy EMC protection betterthan 100 Vm!

With temperature compensation

Recommendation for signal evaluation

The design of the electrical output of thepressure sensor is such that appropriate

circuitry in the downstream electronicscan detect malfunctions caused by breaks

in the cable or short circuits. The diagnosisranges beyond the characteristic curve

limits are intended for fault diagnosis.Example circuit for detection of all fault

situations using signals beyond the charac-teristic curve limits.

Application

This sensor is used to measure the differ-

ence between the intake-manifold pressureof the intake air flow of internal-combus-

tion engines and a reference pressure ap-plied by way of a hose.


The piezoresistive pressure-sensor element

and appropriate signal amplification andtemperature-compensation electronics are

integrated on a silicon chip. The pressuremeasured acts on the back of the silicon

diaphragm. The reference pressure actsfrom above on the active side of the silicon

diaphragm. Thanks to the coating processemployed, both sides are resistant to the

gases and liquids occurring in the intakemanifold.


The sensor is designed for attachment to a

flat surface at the intake manifold of motorvehicles. The pressure connection projects

into the intake manifold and is sealed offfrom the atmosphere by an O-ring. The

sensor should be installed such that con-densate cannot accumulate in the pressure

cell or the reference opening (pressuresampling point at top of intake manifold,

pressure connection angled downwardsetc.). As a general rule, the installation po-

sition should ensure that liquids cannot ac-cumulate in the sensor and pressure hose.

If it freezes, water in the sensor will lead tomalfunctioning.

Differential pressure sensorMicromechanics, hybrid design

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Pressure sensors | 39

Technical data

Parameter min type max

Supply voltage u V 4,75 5 5,25

Current input atu= 5 V K mA 6,0 9,0 12,5

Load current at output mA -1,0 0,5

Load resistance touor ground kO 10

Response time ms 1

Voltage limitation atu= 5 V - lower limit A V 0,25 0,3 0,35

Voltage limitation atu= 5 V - upper limit B V 4,75 4,8 4,85

Limit data

Supply voltageu

V 16

Sectional view of pressure sensor (entire system)

1 Sensor cell2 Measurement pressure

3 Reference pressure

3 1

2


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Technical data

Parameter min max

Pressure measuring range (?...-) p kPa 0 100

Operating temperature C -40 +130

Load resistance touor ground N kO 5

Limit data

Pressure p kPa -350 +350

Storage temperature C C -40 +130





Single-wire seal For;0.5...1.0 mm2; Contents: 10 x 1 928 300 599


Dummy plug 1 928 300 601


Illustration

Dimensional drawing

Pin 1 +5 VPin 2 Ground

Pin 3 Output signal

1 2 3

14,7

8,85

12,6

19,1

21

20

10,5

26

26

66

8

34,5

6

5,8

7

7,8

80

9


0

4,5

0,5

5

UA/V

1

2

3

4

pe/kPa

p1 p2

Characteristic-curve tolerance

D After endurance testN As-new condition

2,5

0

1,2

0,8 N

D1,6

1,6

1,2

0,8

2,5

0 25 10075

%F

S

pe /kPa

Tolerance extension factor Recommendationfor signal evaluation

D Pressure signalR Reference

Dr Pressure sensorE Electronic control unit

US = 5 VUH = 5,5 ... 16 V

ADC

VCC

680 k

RTP=10 k

CTP=4,7F1,5 nF

1,5 nF

GND

OUT

P

U

D

R

Dr E



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Technical data

Parameter min type max

Pressure measuring range (?...-) p kPa -100 0


Supply voltage u V 4,75 5 5,25

Current input atu= 5 V K mA 6,0 9,0 12,5




Response time ms 1Voltage limitation atu= 5 V - lower limit A V 0,25 0,3 0,35

Voltage limitation atu= 5 V - upper limit B V 4,75 4,8 4,85

Limit data

Supply voltage u V 16

Pressure p kPa -500 +500

Storage temperature C C -40 +130


Connector housing 3-pin Yazaki number 7283-5880-101)

Contact pins For;0.35...0.5 mm2 Yazaki number 7116-4102-021)

Contact pins For;0.75...1.0 mm2 Yazaki number 7116-4103-021)

Single-wire seal For;0.35...0.5 mm2 Yazaki number 7158-3030-501)

Single-wire seal For;0.75...1.0 mm2 Yazaki number 7158-3031-901)

Dummy plug Yazaki number 7158-3032-601)

Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required. 1) Available from Yazaki Europe LTD.

Figure

Dimensional drawing

Pin 1 Output signalPin 2 Ground

Pin 3 +5 V

34,5

13,5

12

55,9

16,5

34,5

14,

7

23

25,

2

24,

7

14,

4

3,

5

3,

95

1 2 3


p

kPap2

p1

A

U

inV

0

5

4,5

0,5


Differential pressure sensorMicromechanics, TO cell

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Technical data

Parameter min. type max.

Pressure range kPa (...-) 20 300


Supply voltage (1 min) u V 4,75 5 5,25



Response time ms 1

Limit data

Storage temperature Z C -40 +130


Connector housing Quantity required: 1 x 1 928 403 966Contact pins Quantity required: 3 x; Contents: 100 x 1 928 498 060

Individual seals Quantity required: 3 x; Contents: 10 x 1 928 300 599


Figure

Dimensional drawing

Pin 1 +5 V

Pin 2 GroundPin3 Output signal

8,8

5

75

4,

4

1 2 3

27,4


V

0

UA

1

2

3

4

54,65

0,40

kPaP2P1p


6

3

0

3

6

p1 p2

%F

S

pabs/kPa

Tolerance extension factor

0

0,5

40 10 85 130

1,5

1

2

k

/C

Recommendation for signalevaluation.

R Reference

D Pressure signalT Temperature signal

Dr Pressure sensorE Electronic control unit

T

33 nF

2,61

1,5 nF

NTC

ADC

SHU 5 ,5 bi s 1 6 V

VCC

GND

OUTD

R

1,5 nF

1,5 nF 33 nF

k68

680k

U 5 V

P

U

NTC

k

38,3k

k10

DR E


Absolute-pressure sensorsMicromechanics, hybrid design

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Technical data


Features Integrated temperature sensor

Pressure range (...-) kPa 50 600

Supply voltageu V 4,75 5 5,25

Load current at output mA -1 0,5

Response time ms 1


Limit data


Temperature sensor

Measuring range C -40 +130

Measurement current1) mA 1

Rated resistance at +20C kO 2,5+3,5 %

1) Operation with 1 kOseries resistance.







Dummy plug 1 928 300 601


Figure

Dimensional drawing

Pin 1 Ground

Pin 2 NTC thermistor

Pin 3 +5 V

Pin 4 Output signal

39

18

4

16

15

12

12

22

4

1 42 3

14,4

6,

6

6,

6

49,3

0

47


30

8,2

12

0

12

8,2

30

50 200 500 600

%F

S

pabs /kPa


0

0,5

40 0 100 125

1,5

1

2

/C

k


Absolute-pressure sensorsMedia-resistant, micromechanical

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Technical data


Features Integrated temperature sensor




Load resistance to ground oru kO 50

Response time ms 0,2


Limit data



Load resistance to ground kO 100

Low-pass resistance kO 21,5

Low-pass capacitance nF 100

Temperature sensor

Measuring range C -40 +125

Measurement current1) mA 1

Rated resistance at +20C kO 2,5+5 %

Temperature/time constant2) s 45

1) Operation with 1 kOseries resistance.2) In air with flow velocity 6 m/s.


Connector housing 1 928 403 913

Contact pin Tyco number 2-929 939-6 1)Individual seal Contents: 50 x 1 987 280 106


1) Available from Tyco Electronics.

Figure

Dimensional drawing

A Space required for connector.

B Space required for connection.Pin 1 Ground

Pin 2 NTC

Pin 3 +5 VPin 4 Output signal

58

9,3

AIR

2,5

15

min.21

min.14,5

min.18,5

min.16min.

35

10

1818

17,7

7,6

15,5

73

9,5

36

54

39

58

4

30

18

16,6

1

2

3

4

A B


0 0,2 0,4 0,6 0,8 1,0

P 1 P 2

%

1

2

3

0

-2

-

1

-3

p

p

kPaDruckp



Absolute-pressure sensorsMedia-resistant, micromechanical

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Notes

Notes | 63

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Technical data

Pressure range bar (MPa) 250 ( 25 )

Thread M 10 x 1

Connector PSA

Application/medium Brake fluid

Accuracy of offset u 2,0 %

Accuracy of sensitivity at 5 V -

in range 0...35 bar FS 1) of measured value e0,7 %


in range 35...250 bar FS 1) of measured value e5,0 %3)Supply voltage u V 5+0,25

Supply current K mA e20

Output current I zA...mA -100...3

Temperature range C - 40 ...+ 120

Max. overpressure bar 350

Rupture pressure bar > 500

Tightening torque Nm 20+2

1) FS = Full Scale.3) of measured value.


Connector housing Tyco number 2-967 642-11)Contact pins Tyco number 965 907-11)

Individual seal Tyco number 967 067-11)

Accessories are not included in the scope of delivery and are therefore to be ordered separately as required.1) Available from Tyco Electronics

Figure

Dimensional drawing

A Space required for connector,

approx. 25 mmB Space required for connector,

approx. 50 mm

SW Width across flats

Pin 1 GND groundPin 2 Output voltageUPin 3 Supply voltageu

90

15,3

5,3

41 B

24,3 A

53,3

32,8

17,120,9

3810

SW 24

25

M10x1

8,5

2,8

22,1

Pin 2

Pin 3Pin 1

12

3


High-pressure sensorsMeasurement up to 25 MPa

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Technical data


Thread M 12 x 1,5

Application/medium Diesel fuel or biodiesel 2)

Max. feed voltage j V 16

Supply voltage u V 5+0,25

Supply current K mA 9...15

Tightening torque Nm 35+5

Pressure-sensor type RDS2

Connector Make circuitPin Silver-plated

Accuracy of offset u 1,0 % FS


in range 0...35 bar FS 1) of measured value 1,0 %


in range 35...1500 bar FS 1) of measured value 2,0 %

Output current I zA...mA 2,5 mA 4)

Load capacitance to ground nF 10

Temperature range C - 40 ...+ 120 5)


Rupture pressure bar 3000

Response time , ms 5

1) FS = Full Scale. 2) RME rapeseed methyl ester. 4) Output current with pull-up resistor. 5) +140 C for max. 250 h.


Connector housing Kostal number 9 441 3911)Contact pins Kostal number 22 124 492 0601)

Single-wire seal Kostal number 10 800 444 5221)

Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.1) Available from Kostal Deutschland.

Figure

Dimensional drawing

D Sealing washer

F Date of manufactureSW Width across flats

S 3-pin connector

Pin 1 GND ground

Pin 2 Output voltageUPin 3 Supply voltageu

7

29

R1,5

0,6

12,5

16

69

F

S

M1

2x1,5

25

SW27

30

2

1 3

2

1 3 D

Pin 2

Pin 3Pin 1



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Technical data





Pressure-sensor type RDS4.1

Thread M 18 x 1,5

Pin Silver-plated

Application/medium Diesel fuel or biodiesel 2)

Supply current K mA 9...15Temperature range C - 40 ...+ 130




2) RME rapeseed methyl ester.Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately asrequired.


Connector housing Kostal number 9 441 3911)Contact pins Kostal number 22 124 492 0601)

Single-wire seal Kostal number 10 800 444 5221)

1) Available from Kostal Deutschland.

Figure

Dimensional drawing

Pin 1 Ground

Pin 2 OutputPin 3 Supply

13,8

21

26

12,6

60

15

15,9 12,55

50,85

3SW 27 4

1 2 3 1 2 3

14,5

12,6

X

X

0,5

3

R3Pin 2

Pin 3Pin 1



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Technical data





Pressure-sensor type RDS4.1

Thread M 18 x 1,5

Connector Compact 1.1

Pin Gold-plated

Application/medium Diesel fuel or biodiesel 2)Supply current K mA 9...15





2) RME rapeseed methyl ester.


Connector housing 1 928 403 968Contact pins Contents: 100 x 1 928 498 054

Single-wire seal Contents: 10 x 1 928 300 599


Figure

Dimensional drawing

Pin 1 GroundPin 2 Output

Pin 3 Supply

13

R3

21

26

12,6

60

15

15,9 12,55

50,25

3SW 27 4

1 2 3 1 2 3

3

Pin 2

Pin 3Pin 1



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Technical data






Thread M 18 x 1,5

Application/medium Diesel or biodiesel 2)


Max. overpressure bar 2300Rupture pressure bar 4000


2) RME rapeseed methyl ester.

Figure


50,851

0,

5

12,551

26,40,4

30,2

210,5

Pin 2 Pin 3Pin 1

SW27

M1

8x1,5

15,90,7

12,6

15,5

0,

5

246

0

9090

g6

3

5,45

4 0,2

0,5+ 0,2 0,32



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Technical data






Thread M 18 x 1,5

Application/medium Diesel or biodiesel2)

Temperature range - 40 ...+ 130

Max. overpressure bar 2300Rupture pressure bar 4000


1) FS = Full Scale.2) RME rapeseed methyl ester.4) Output current with pull-up resistor.5) +140C for max. 250 h.

Figure


M1

8x1,5

13

50,252

12,552

15,90,7

12,6

60

5

4

...135

15 Pin 2 Pin 3Pin 1

SW27

g6

4

3

R5010

150

0,5



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Technical data

Parameter min typ max

Load current at output mA -1 0,5

Load resistance to ground oru kO 5 10

Lower limit atu= 5 V V 0,25 0,3 0,35

Upper limit atu= 5 V V 4,75 4,8 4,85

Output resistance to ground,uopen kO

Output resistance tou, ground open kO

Response time ms 1

Operating temperature C -40 130


Dr Pressure sensor

E Electronic control unit

Pressure sensors for CNG and LPGMedia-resistant, micromechanics

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Technical data


Product text Only suitable for CNG




0,3

36

39

14,75 0,15

0

45 4

5

55,7

10

12

35,3

6,5

37,7

2x7,

6

58,8

15,5

27

15

18

9,

2

54

4

16,

5

S

1

2

3

4

x2

41x

2

14,50,15


Characteristic curve tolerance

p

p1

p2

kPa

50 250 800 10000

19

19

14,2

14,2


125C10000

2

1

2,5

1,5

0,5

40


Figure


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Technical data




Current input Katu= 5 V mA 6 9 12,5


0,

3

36

39

14,750,15

0

45 4

5

55,7

10

12

35,3

37,7

2x7,6

58,8

15,5

27

15

18

9,2

54

4

16,5

S

1

2

3

4

x2

41x

2

14,50,15



Figure

Characteristic curve tolerance

p

p1

p2

0

3,4

3,4

kPa

20 250


125C10000

2

1

2,5

1,5

0,5

40


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Technical data






0,3

36

39

14,75 0,15

0

45 4

5

55,7

10

12

35,3

6,5

37,7

2x7,

6

58,8

15,5

27

15

18

9,

2

54

4

16,

5

S

1

2

3

4

x2

41x

2

14,50,15



Figure


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Technical data


Product text Only approved for CNG





0,3

36

39

14,75 0,15

0

45 4

5

55,7

10

12

35,3

6,5

37,7

2x7,

6

58,8

15,5

27

15

18

9,

2

54

4

16,

5

S

1

2

3

4

x2

41x

2

14,50,15



Figure


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Technical data






0,3

36

39

14,75 0,15

0

45 4

5

55,7

10

12

35,3

6,5

37,7

2x7,

6

58,8

15,5

27

15

18

9,

2

54

4

16,

5

S

1

2

3

4

x2

41x

2

14,50,15



Figure


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Technical data






0,

3

36

39

14,750,15

0

45 4

5

55,7

10

12

35,3

37,7

2x7,6

58,8

15,5

27

15

18

9,2

54

4

16,5

S

1

2

3

4

x2

41x

2

14,50,15



125C1000

0

2

1

2,5

1,5

0,5

40


Figure


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Notes

Notes | 87

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88 | Temperature sensors - NTC

Measurement withtemperature-sensitive resistors.

Broad temperature range.


The sensor is installed such that the frontsection with the sensing element is directly

exposed to the air flow.

NTC temperature sensor

Plastic-sheathed NTC thermistor


NTC thermistors have a negative tempera-ture coefficient, i.e. their conductivity in-

creases with increasing temperature: Theirresistance decreases. The conductive ele-

ment of the temperature sensor consistsof semi-conducting heavy metal oxides and

oxidized mixed crystals pressed or sinteredinto wafers or beads with the aid of bind-

ing agents and provided with a protectivecasing. In combination with a suitable eval-

uation circuit, such resistors permit pre-cise temperature determination. Depend-

ing on the housing design, the sensors aresuitable for measuring temperatures in liq-

uids and gases. In motor vehicles they areused to measure the temperature of theintake air, i.e. in the range -40130 C.

Note

For a 2-pin connector, 1 connector housing,

2 contact pins and 2 individual seals arerequired.Genuine Tyco crimping tools must be used

for motor vehicle applications.

Resistance profile of temperature sensor

Circuit diagram

Temperature sensor(block diagram)

1 NTC thermistor2 Screw-in thread

3 Housing4 Electrical connection

c ResistanceD Temperature

NTC temperature sensors: -40C to 130CMeasurement of air temperatures

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Temperature sensors - NTC | 89

Technical data

Product text

Sensor in steel housing with threaded connection.

Perm. temperature max. C 130

Rated resistance at 20 C kO 2,5+5 %

Resistance at -10 C kO 8,325 ... 10,572

Resistance at +20 C kO 2,280 ... 2,736


Nominal voltage V 5 +0,15

Max. measurement current mA 1Self-heating with

max. perm. power loss of = 2 mW and still air (23 C) K e2

Temperature/time constant1) s e38

Approximate value for permissible

vibration acceleration0

(sinusoidal vibration) m/s2 300

Corrosion-tested as per DIN 50 018

1) Time required to attain a difference in resistance of 63% of the final value given an abrupt change in measurementtemperature from 20C to 80C; flow velocity of air 6 m/s .


Jetronic connector 2-pin 1 928 402 078

Protective cap Temperature-resistant; Contents: 1 x 1 280 703 031

Contact pins For;0.5...1.0 mm2 Tyco number 929 939-31)

Contact pins For;1.5...2.5 mm2 Tyco number 929 937-31)

Individual seal For;0.5...1.0 mm2; Contents: 50 x 1 987 280 106

Individual seal For;1.5...2.5 mm2; Contents: 20 x 1 987 280 107

Accessories are not included in the scope of delivery of the sensor and are therefore to be ordered separately as required.1) Available from Tyco Electronics.

Figure

Dimensional drawing

Tightening torque

1

5

48,5

5

26

3,5

5,2

9,7

15

M12 x 1,5

02

801

300

39

4,5

MA= 15 Nm19


NTC temperature sensors: -40C to 130CMeasurement of air temperatures

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Wide range of liquid tempera-ture measurements with tem-perature-sensitive resistors.

NTC temperature sensor

NTC thermistor in brass housing.


NTC thermistors have a negative tem-

perature coefficient, i.e. their conductivityincreases with increasing temperature:

Their resistance decreases.?The conduc-tive element of the temperature sensor

consists of semi-conducting heavy metaloxides and oxidized mixed crystals pressed

or sintered into wafers or beads with theaid of binding agents and provided with a

protective casing. In combination with asuitable evaluation circuit, such resistors

permit precise temperature determina-tion. Depending on the housing design,

the sensors are suitable for measuringtemperatures in liquids and gases.?In mo-

tor vehicles they are used to measure thetemperature of engine oil, coolant and fuel,

i.e. in the range -40130 C.

Note

For a 2-pin connector, 1 connector hous-

ing, 2 contact pins and 2 individual sealsare required.

Genuine AMP crimping tools must be usedfor motor vehicle applications.


c ResistanceD Temperature

NTC temperature sensors: -40C to 130CMeasurement of liquid temperatures

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Technical data

Measuring range C - 40 ...+ 130

Approximate value for permissible vibration acceleration0

(sinusoidal vibration) m/s2 300

Max. measurement current mA 1

Circuit diagram

Temperature sensor (block diagram)

1 NTC thermistor2 Screw-in thread

3 Housing4 Electrical connection

Resistance profile of temperature sensor


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Technical data

Product text Sensor in brass housing.

Application/medium Oil/water

Tolerance at +100 C K 0,1886 +2%






Degree of protection 1) IP 5K 9KThread M 12 x 1,5


Connector Compact 1.1, tinned pins

Tightening torque Nm 25

Rated voltage V 5 +0,15

1) With single-wire seal.


Compact connector 1.1a 2-pin 1 928 403 874

Contact pins For;0.5 ... 1.0 mm2; Contents: 100 x 1 928 498 056

Contact pins For;1.5 ... 2.5 mm2; Contents: 100 x 1 928 498 057Single-wire seal For;0.5 ... 1.0 mm2; Contents: 10 x 1 928 300 599

Single-wire seal For;1.5 ... 2.5 mm2; Contents: 10 x 1 928 300 600


Figure

Dimensional drawing

1

5

60,9

5M12 x1,5

7,

5

28

17

0

281

002

209

19

19,

4

13

MA = 20 Nm



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Technical data

Product text Sensor in brass housing.

Application/medium Oil/water

Tolerance at +100 C K 0,1886 +2%






Degree of protection 1) IP 5K 9KThread M 14 x 1,5


Connector Compact 1.1, tinned pins

Tightening torque Nm 20

Rated voltage V 5 +0,15

1) With single-wire seal.


Compact connector 1.1a 2-pin 1 928 403 874

Contact pins For;0.5 ... 1.0 mm2; Contents: 100 x 1 928 498 056

Contact pins For;1.5 ... 2.5 mm2; C

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