Sistema Awd Captiva

C100 Servic rv ice e Training raini ng Manu Manua al : Al A l l Wheel Wh eel Dri Dr i v e (AWD) (A WD) Particip rti cipa ant’s nt’ s Handout ndou t

04.1-3 C100 Driveline All Wheel Drive Participant’s Handout

Table Of Contents

General Description …………………………………...…….…… 5 Transfer Case …...………...…...………………………....…… 6 Drive Axle ………………….……………………………………… 9 P ropeller Shaft ……………………………...………….……. 10 Rear Drive Module ……………...……………………...….…… 11 Diagnosis ……………………………….…………………….… 17 Wiring Diagram …………………………………………………… 18

rev 01


rev 01

All Wheel Driv e : Gener al des crip tio n System descripti on

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. Features of th e 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.

[ Active on-demand all-wheel drive (AWD) ] rev 01


All Wheel Dri ve : 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 Getrag 760 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.

Fill plug Drain plug

rev 01

Oil capacity

Oil specification

0.8 ± 0.1L

Synthetic hypoid 75W-90

All Wheel Dri ve : Transfer case Transfer case expl oded vi ew -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. 19. 20. 21.

Transfer Case Heat Shield Transfer Case Half Bolt (Quantity: 11) Transfer Case – Right Transfer Case Seal rev 01

04.1-8 C100 Driveline All Wheel Drive

All Wheel Dri ve : Transfer case Transfer case exploded view - 2

Participant’s Handout

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

rev 01

04.1-9

Al l Wh eel Dri ve : Drive axl e

C100 Driveline All Wheel Drive

Driver axle(Fron t)


RH

Intermediate Shaft (AWD) Intermediate Shaft(FWD)

LH

Driver axle (Rear)

1. Inboard Seal Kit 2. Inboard Seal Kit 3. Outboard J oint Kit 4. Outboard Seal Kit

rev 01


All Wheel Driv e : Prop ell er shaft 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.

rev 01

Al l Wheel Driv e : Rear Driv e Mod ul e 1. Description

The 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).

[ Rear Drive Module]

rev 01


All Wheel Dr iv e : Rear Driv e Mod ule 2. Specification


Item

Specification

Manufacturer

Getrag

Coupling

Rear axle

Operating temperature

-40℃ ~100℃

Operating voltage

9V ~ 16V

Torque capacity

1,000 N·m

Oil capacity

200 ㎖ (impossible of oil replacement)

Coil resistance

1.9 ± 0.2Ω

Number of multi-disk clutch

Main clutch : 12 EA, Pilot clutch:1 EA

Number of ball

6 EA

Gear ratio

2.53 : 1

Max. torque

2,530 N·m

Oil capacity

0.6 ± 0.1 ℓ

Oil specification

Synthetic hypoid 75W-90

2

4

5 9

3

8

10 11

6

7 1

rev 01

1.

Side bracket

4.

2.

Differential assy’

3.

Side cover

CCM (Coupling Control Module)

5

.Drive shaft seal

6.

Side cover seal

7.

8.

Clutch couple assy’

9.

Couple housing

10. Pinion flange

P inion gear seal

11. Nut

04.1-13

Al l Wheel Driv e : Rear Driv e Mod ul e


3. AWD torque flo w


Torque through propeller shaft

Torque to rear diff ’

rev 01


All Wheel Dr iv e : Rear Driv e Mod ule 4. Operation of Active coupl ing


[Ball ramp system working mechanism]

rev 01

04.1-15

Al l Wheel Driv e : Rear Driv e Mod ul e


5. Control system


Power Power supply(B+ supply(B+)) Operation Operationsignal signal

BCM BCM

 Wheel speed speed sensor sensor  Wheel Steering angle  sensor  Steering angle sensor  ABS operation operationsignal signal  ABS APP sensor   APP sensor  Engine RPM RPM  Engine  Parkingbrake brakeS/W S/W  Parking

Magnetic Magneticcoil coil

Temperature Temperature sensor sensor

 Systempower powermode mode  System PNP S/W   PNP S/W

 Couplingstatus status  Coupling Transfer status   Transfer status

CCM CCM

Input Input

GMLAN GMLAN

Output Output

 Temperature perature status status  Tem

AWD AWD warning warning lamp lamp

Cluster Cluster

rev 01


All Wheel Dr iv e : Rear Driv e Mod ule 6. Functions

1) Tight Corner J udgment : 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 vehicle stability. 6) Steady Driving J udgment : 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.

rev 01

04.1-17

Al l Wheel Dri ve : Diag nosis


Diagnosis

If the AWD system has a malfunction, AWD warning lamp comes On or blinking and only FWD can be available in this condition.


AWD w arnin g lamp

DTC

Lamp

Description

ON

Rear Axle Coupling Solenoid Control Circuit (Over Current)

ON

Rear Axle Coupling Solenoid Control Circuit (Wiring)

ON

Rear Axle Coupling Solenoid Temperature Sensor Circuit

ON

Electronic Control Unit(ECU) Performance(ROM)

ON

Electronic Control Unit(ECU) Performance(Wiring)

C0558

ON

Calibration Data Not Programmed/Learned

C0561

Blinking

System Permanently disabled Information Stored

C0899

Blinking

Device{single or 1}Voltage Low

U0100

Blinking

Lost Communication With Engine Control Module

U0121

Blinking

Lost Communication With Anti–Lock Brake System(ABS) Control Module

U0140

Blinking

Lost Communication With Body Control Module

C0393

C0394

C0550

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rev 01

All Wheel Dr iv e : Wirin g diag ram Wiring di agram

Sistema Awd Captiva

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