Sistema Awd Captiva
Transcript of Sistema Awd Captiva
C100 Service Training Manual :All Wheel Drive (AWD)
Participant’s Handout
04.1-3
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
Table Of Contents
General Description …………………………………...…….…… 5Transfer Case …...………...…...………………………....…… 6Drive Axle ………………….……………………………………… 9Propeller Shaft ……………………………...………….……. 10Rear Drive Module ……………...……………………...….…… 11Diagnosis ……………………………….…………………….… 17Wiring Diagram …………………………………………………… 18
04.1-4
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
04.1-5
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : General description
The C100/C105 is available with either front-wheel drive (FWD) or on-demand all-wheel drive (AWD).
The system delivers power to the front wheels during normal driving conditions on dry road surfaces, but if front wheel slippage caused by rain, snow or mud is detected, power is automatically delivered to the rear wheels as well.
The system is automatically work with no action required by the driver. While primarily intended for on-road use, the AWD system also provides excellent traction and mobility for off-road use as well.
System description
[ Active on-demand all-wheel drive (AWD) ]
Features of the Active-on demand type AWD
1. Electrical Controlled Coupling used (Electro Magnetic type).
2. Monitoring vehicle running condition and active controlling torque in real time. (Coupling engage directly)
3. Rapid convert to AWD, Many control functions, Correspond with ABS/TCS/ESP system.
4. High degree of freedom by various control factors and calibration per each vehicle configurations.
04.1-6
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Transfer case
Transfer case
The Getrag 760 transfer case consists of an aluminum housing, input shaft and gear, and a ring and pinion power transfer system.The Getrag760 transfer case transfers torque/power from the input shaft through the ring and pinion assembly to the rear differential via a 1-piece propeller shaft assembly.
The on-demand rear differential and torque tube assembly distributes variable torque/power to the rear wheels via individual axle shafts.
The Getrag 760 transfer case is a single speed unit. Torque transfer is electronically controlled, dependent on the demand of the rear differential.
The power take-off unit (PTU) uses synthetic hypoid gear lubricant, which is intended for lifetime service. Full fluid level is at the bottom of the fill plug hole when the vehicle is on a level surface.
Synthetic hypoid 75W-900.8 ± 0.1L
Oil specificationOil capacity
Fill plug
Drain plug
04.1-7
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
Transfer case exploded view -1
1. Transfer Case Drain Plug
2. Transfer Case Fill Plug
3. Transfer Case Input Shaft Seal – Left
4. Transfer Case O-Ring Seal
5. Transfer Case – Left
6. Transfer Case Vent Assembly
7. Transfer Case Half Locating Pin (Quantity: 2)
8. Front Wheel Drive Shaft Shield
9. C-Clip
10. Front Wheel Drive Retainer
11. Half Shaft Retainer
12. Front Wheel Drive Intermediate Shaft Bearing Retainer (Quantity: 2)
13. Front Wheel Drive Intermediate Shaft Bearing Assembly
14. Front Wheel Drive Intermediate Shaft
15. Transfer Case Mounting Bracket Bolt (Quantity: 6)
16. Transfer Case Mounting Bracket
17. Transfer Case Heat Shield Bolt (Quantity: 4)18. Transfer Case Heat Shield19. Transfer Case Half Bolt (Quantity: 11)20. Transfer Case – Right21. Transfer Case Seal
All Wheel Drive : Transfer case
04.1-8
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
Transfer case exploded view - 2
22. Transfer Case Input Shaft Seal (Right)
23. Front Drive Axle Intermediate Shaft Seal Assembly
24. Transfer Case Input Shaft
25. Transfer Case Rear Output Drive Shaft
26. Transfer Case Rear Output Drive Gear Nut
27. Transfer Case Rear Output Shaft Flange
28. Transfer Case Rear Output Shaft Oil Slinger
29. Transfer Case Rear Output Shaft Seal
30. Transfer Case Rear Output Shaft Bearing Assembly (Quantity: 2)
30. Transfer Case Rear Output Shaft Bearing Assembly (Quantity: 2)
31. Transfer Case Rear Output Drive Housing
32. Transfer Case Rear Output Shim
33. Transfer Case Rear Output Drive Shaft Housing Bolt (Quantity: 6)
34. Transfer Case Rear Output Shaft Bearing Spacer
35. Transfer Case Rear Output Shaft
36. Transfer Case Rear Output Drive Shaft Housing Seal O-Ring
All Wheel Drive : Transfer case
04.1-9
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
Driver axle(Front)
All Wheel Drive : Drive axle
Intermediate Shaft(FWD)
RH
LH
Intermediate Shaft(AWD)
1. Inboard Seal Kit2. Inboard Seal Kit3. Outboard Joint Kit4. Outboard Seal Kit
Driver axle (Rear)
04.1-10
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
Propeller shaft
All Wheel Drive : Propeller shaft
The propeller shaft assembly is a 2–piece design. The front shaft consists of a plunging A–type constant velocity joint at the front and a universal joint and yoke at the rear.
The rear shaft consists of a center bearing and a center yoke, which are pressed onto the rear half of the propeller shaft and retained by a snap ring. The front and rear shafts are joined together at the yokes with a universal joint. The rear shaft attaches to the axle with a flange which is attached to the rear shaft with a universal joint.
The center bearing provides support where the front and rear shafts mate and is bolted to the underbody. The front constant velocity joint is bolted to the power take–off unit (PTU), and the rear universal joint flange is bolted to the clutch coupling assembly.
04.1-11
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
[ Rear Drive Module]
1. DescriptionThe rear drive module (RDM) in this vehicle consists of a coupling control module and an aluminum housing which contains a clutch coupling assembly and a differential.The on–demand system operates as follows:1) Only when front wheel slippage is encountered torque/power
is proportioned to the rear wheels.2) As long as there is no front–to–rear speed difference; there
is no torque/power to the rear wheels.3) When front–to–rear wheel slippage does occur, the coupling
control module receive the information from the ECM, BCM, EBCM and the coupling control module sends a signal to the clutch coupling assembly to actuate the clutch coupling pack which then distributes torque/power to the rear wheels. Rear axle output torque is controlled from 0 Nm ~ 2,530 Nm depending on various road condition such as asphalt, sand,snow and ice.
4) The torque distribution ratio of front/rear axle is controlled continuously to have optimized value between 100/0 ~ 50/50 in real time depend on vehicle driving status & road condition.
5) The system has an integral protection device that reduces rear wheel torque when excessive heat is generated, thus protecting the rear wheel drive module (RDM).
04.1-12
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
2. Specification
6 EANumber of ball
Main clutch : 12 EA,Pilot clutch:1 EA
Number of multi-disk clutch
1.9 ± 0.2ΩCoil resistance
200 (impossible of oil replacement)Oil capacity
0.6 ± 0.1 ℓOil capacity
Oil specification
Max. torque
Gear ratio
Torque capacity
Operating voltage
Operating temperature
Synthetic hypoid 75W-90
2,530 N·m
2.53 : 1
Rear axle
1,000 N·m
9V ~ 16V
-40 ~ 100
Coupling
GetragManufacturer
SpecificationItem
1
2
3
45
67
8910
11
1. Side bracket 2. Differential assy’ 3. Side cover
4. CCM (Coupling Control Module) 5 .Drive shaft seal
6. Side cover seal 7. Pinion gear seal 8. Clutch couple assy’
9. Couple housing 10. Pinion flange 11. Nut
04.1-13
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
3. AWD torque flow
Torque to rear diff’
Torque through propeller
shaft
04.1-14
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
4. Operation of Active coupling
[Ball ramp system working mechanism]
04.1-15
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
5. Control system
CCMCCM
Magnetic coilMagnetic coil
Power supply(B+)Power supply(B+)
Wheel speed sensorSteering angle sensorABS operation signalAPP sensorEngine RPMParking brake S/WSystem power modePNP S/W
Wheel speed sensorSteering angle sensorABS operation signalAPP sensorEngine RPMParking brake S/WSystem power modePNP S/W
Temperature sensor
Temperature sensor
GMLANGMLAN
AWD warning lampAWD warning lamp
InputInput
Operation signalOperation signal
ClusterCluster
BCMBCM
OutputOutputCoupling statusTransfer statusTemperature status
Coupling statusTransfer statusTemperature status
04.1-16
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Rear Drive Module
6. Functions1) Tight Corner Judgment : Low or zero torque transfer
enables easy and comfortable maneuvering in parking situations.
2) Acceleration : High torque transfer for maximum traction, instantly, on all four wheels.
3) Off-road : Instant activation with high torque transfer for maximum traction without driver’s operation of separate AWD lock switch.
4) Driving on slippery / wet roads : Swift activation of the coupling for maximum traction and safety depending on the slip of the wheels. The coupling communicates on-line with other safety systems in the vehicle.
5) Pre-Torque for Handling Enhancement : Proper Pre-Torque applied to rear wheel for enhanced handling and vehiclestability.
6) Steady Driving Judgment : Reduce rear wheel torque for better fuel economy at steady driving condition not to need AWD.
7) Braking / ABS : ABS braking overrules the coupling to ensure full function of the ABS system.
8) ESP : Communicates with the ESP system to add the rear wheel torque for Yaw control.
9) Mini Tire Detection : An algorithm in the CCM detects differences in the diameters of the tires and compensates the characteristics accordingly.
10) Self Protecting : Algorithm to reduce torque transfer for protecting coupling itself at certain temperature of RDM inside due to the abnormal input condition.
04.1-17
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Diagnosis
Diagnosis
AWD warning lamp
Lost Communication With Anti–Lock Brake System(ABS) Control ModuleBlinkingU0121
Lost Communication With Body Control ModuleBlinkingU0140
Blinking
Blinking
Blinking
ON
ON
ON
ON
ON
ON
Lamp
Lost Communication With Engine Control ModuleU0100
Devicesingle or 1 Voltage LowC0899
System Permanently disabled Information StoredC0561
Calibration Data Not Programmed/LearnedC0558
Electronic Control Unit(ECU) Performance(Wiring)
Electronic Control Unit(ECU) Performance(ROM)C0550
Rear Axle Coupling Solenoid Temperature Sensor CircuitC0394
Rear Axle Coupling Solenoid Control Circuit (Wiring)
Rear Axle Coupling Solenoid Control Circuit(Over Current)
C0393
DescriptionDTC
If the AWD system has a malfunction, AWD warning lamp comes On or blinking and only FWD can be available in this condition.
04.1-18
C100 Driveline All Wheel Drive
Participant’s Handout
rev 01
All Wheel Drive : Wiring diagram
Wiring diagram