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2-3 kW power generation capability

Engine

12V

Battery

Loads

14V

Starter

OPENs occur here.

or here.

WHY? Cables corrode andbreak

Nuts & bolts comeloose

Mechanics disconnectthe wrong wire at thewrong time.

14 V Single Battery System

Alternator

or here

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Instances

A major OEM received six new42 volt alternators from asupplier. Three weredestroyed in testing duringthe first month. Thats$15,000 up in smoke. They

bought SIMPLORER.

Another major OEM workedfor over a year to create anaccurate Saber alternatormodel that could be fit toparametric data. They havenot succeeded. Ansoft and

the OEM are discussing thedeployment ofSIMPLORER.

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Why should you be interested?

Solving by handTime consuming

Error prone

Testing

Destroy or degrade parts

Very difficult to repeat

Insufficient quantity of parts available

Simulation

Parts are virtualdont smoke

Exactly repeatable

All are necessary to some extent and support one another.

Options are few!

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Ansofts Solution

Z RMxprt

Z Motor/generator design tool that can automaticallyproduce a model for SIMPLORER

Z SIMPLORERZ simulate the alternator, the battery, the loads and the

devices and strategies that control and regulate thealternator

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Design Flow

Maxwell2DMaxwell3D

Static, Harmonic,

Transient

Maxwell Equivalent

Circuit Generator

Geometry &Material

ParametricSolution

ParameterSets, Lookup

Tables, Models

Model

Generation

Model Generation

Model OrderReduction

Model

Generation

Parameters&

Models

Optimization

Optimization

Optimization

RMxprt

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Multi Domain Simulation

SIMPLORER Simulation Data BusSimulator Coupling Technology

Circuit

Simulator

Block Diagram

Simulator

State Machine

Simulator

Simulink

MathCad

Maxwell2D/3DElectromagnetism

Electro mechanics

C/C++

Interface

Model Database

Electrical, Blocks, States, Machines, Automotive, Hydraulic,Mechanics, Power, Semiconductors

VHDL-AMS

Simulator

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Specifications

RMxprt

ModelFEA

SimplorerECE

RMxprt Data Input

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RMxprt - LINKRMxprt - LINK

A

B

C

Torque

Position

RMxprtLink1

E1

E2

A+

Torque

J

MchRMas1

STF

MchRStf1

J

MchRMas2

STF

MchRStf2

J

MchRMas3

+

V

Spee

+

V

Position

RMxprt -> SIMPLORER

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BJT1

S1

Alternator

A

BC

Field

Control

fromPCM

Powertrain Control Module

3 ~MS BA

C

Battery

M

Loads

Motors,Lamps,Solenoids,Sensors,Modules

Typical Charging System:

Alternator, PCM, Battery, Loads

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Charging System in SIMPLORER

RLOADS

Alternator

A

B

C

FieldIGBT1

+

V

Position

Speed

RCable

D2 D3 D4

D5D6D7

R1

C_Bat

R_Dis

D8

D9

S1

Y t

CS

R_wire11

L_wire1

3000 RPM

A+

AM1

A+

AM2

MEAN VALUE

MEAN_I_FieldMEAN VALUE

MEAN_I_Load

+

V VM1

MEAN VALUE

MEAN_Vout

SUM1.VAL > 0

42

A

B

C

Torque

Position

Field

RMxprtLink1

SET: ctrl_1:=0SET: ctrl_1:=1

D1

OPEN at 350msec

ctrl_1

Abs

SUM1FCT_ABS1

SAWTOOTHV

SUM1.VAL

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Output Voltage,Average Output(X10), and Control Signal(X100)

Simulation Results

(Scaled at 100*Control Signal and 10*Average Output)

MEAN_Vout.VALVM1.Vctrl_1

t

597.38

-100.00

0

100.00

200.00

300.00

400.00

500.00

0 1.000.25 0.50 0.75

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Field Current

Simulation Results

R_WandB.I

t

20.00

-2.00

0

2.50

5.00

7.50

10.00

12.50

15.00

17.50

0 1.000.20 0.40 0.60 0.80

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Add zener, adjust sawtooth frequency & duty cycle

RLOAD

Alternato

A

B

C

Field

IGBT1

+

V

Position

Speed

RCable

R_WandBD2

D3

D4

D5D6D7

R1

C_Bat

R_Di

D8

D9

S1

Y t

CS

R_wire11

L_wire1

L_wirec

3000 RPM

A+

AM1

A+

AM2

MEAN VALUE

MEAN_I_FieldMEAN VALUE

MEAN_I_Load

+

V VM1

MEAN VALUE

MEAN_Vout

SUM1.VAL > 0

42

A

B

C

Torque

Position

Field

RMxprtLink1

SET: ctrl_1:=0SET: ct rl_1:=1

D1

OPEN at 350msec

ctrl_1

Abs

SUM1

FCT_ABS1

SAWTOOTHV

SUM1.VAL

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20Hz Sampling with 90/10 PWM

Output

Voltage

Average

OutputVoltage

Field

Current

VM1.V

t

60.00

-10.000

10.00

20.00

30.00

40.00

50.00

0 5.001.00 2.00 3.00 4.00

MEAN_Vout.VAL

t

50.00

-5.000

10.00

20.00

30.00

40.00

0 5.001.00 2.00 3.00 4.00

R_WandB.I

t

12.00

0

2.00

4.00

6.00

8.00

10.00

0 5.001.00 2.00 3.00 4.00

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VM1.V

t

60.00

-10.00

0

10.00

20.00

30.00

40.00

50.00

0 2.000.50 1.00 1.50

MEAN_Vout.VAL

t

50.00

-5.000

10.00

20.00

30.00

40.00

0 2.000.50 1.00 1.50

R_WandB.I

t

12.00

0

2.00

4.00

6.00

8.00

10.00

0 2.000.50 1.00 1.50

16Hz Sampling with 90/10 PWM

Output

Voltage

Average

OutputVoltage

Field

Current

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RMxprt and SIMPLORER enable the engineer to study all thedesign alternatives quickly and without destroying ordegrading the properties of valuable components. With this

information highly focused testing can be carried out tocomplete the development process.

Benefits:

9 Shortened development time9

Improved performance and reliability9 Greater customer satisfaction9 Lower warranty costs

Summary