Hyundai Genesis (DH): General Information / Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / 4 Wheel Drive (AWD) System / General Information / Description and Operation

Description
1.
Description
A.
This system is to optimize driving performance through distributing the driving force to the front and rear wheels actively depending on the road condition and driving condition.
Distribution of electronically controlled driving force
A.
The magnitude of the driving force transmitted to the front wheel is variably controlled by precisely fine-tuning the assembling torque on the electronic AWD transfer case (Multi disk) through recognizing the road condition and driving state from the sensor signals input to the AWD ECU.
Mutual controlling with the related driving control system
A.
It acquires the best performance in car driving through perfect mutual controlling with brake system such as ABS and VDC.
B.
The driving force transmitted from the engine and transmission to the transfer case is transmitted to the rear differential through the propeller shaft. It is transmitted to the front differential through the propeller shaft when the operation of AWD is required.
2.
Structure of transfer case
A.
The AWD ECU distributes the driving force to the front/rear wheel through controlling the multi plate clutch on the AWD transfer case by analyzing the input information, i.e. the wheel speed, accelerator and steering angle depending on the road condition and driving state.

1. Front wheel flange
2. ITA(ECU+Motor)
3. Worm gear
4. Rear wheel flange
5. Clutch pack
6. Main shaft

3.
Outline of driving force distribution

4.
Transfer case operation
1) Transfer case operation procedure
A.
CAN signal input from each sensor depending on the car driving
Driving the worm gear with motor after calculating the required driving force in ITA(AWD ECU+MOTOR).
Operation of Ball ramp with worm gear
Clutch operation with Ball ramp operation
Transmitting of torque to the gear with clutch operation
Applying the driving force to the front wheel
? ITA (Integrated Transfer case Actuator)

    Specification ItemSpecificationProduct nameTransfer caseOperation methodElectronic actuator control method (BLDC motor)Torque capacity1,100 NmWeight25 kg (Oil injection state) Tightening Torques Item N.

    Adjustment Introduction It is necessary to check and input the calibration data when the controller is replaced as the characteristics of the internal frictional materials (clutch pack) change due to driving.

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