System Description

When the VDC function is turned OFF by operation of VDC OFF switch, active ride control function also turns OFF.
When a malfunction occurs in active ride control function, the master warning lamp illuminates and the information display in the combination meter informs the driver.
NOTE: Active ride control function may not be effective in all driving environments (traction conditions, etc.).

ENGINE CONTROL

Riding Comfort Improvement

When driving on an uneven road surface, the rotation of each wheel, the steering angle, and the requested traction torque are computed by the chassis control module and a command is transmitted to ECM.
Based on the command from the chassis control module, ECM corrects the engine torque that is outputted.
By correcting the engine torque that is outputted, the load of weight on the front and rear wheels stabilizes and riding comfort is improved.

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- Engine torque is corrected according to driving conditions.

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Steering Stability

The rotation of each wheel, the steering angle, and the requested traction torque are computed by the chassis control module and a command is transmitted to ECM.
Based on the command from the chassis control module, ECM corrects the engine torque that is outputted.
By correcting the engine torque that is outputted, vehicle behavior during cornering is smoothened.

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- Engine torque is corrected according to steering operation conditions.

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BRAKING CONTROL

When driving on an uneven road surface, mainly the rotation speed information of each wheel is computed by the chassis control module to estimate vertical G and a command is transmitted to the ABS actuator and electric unit (control unit).
The ABS actuator and electric unit (control unit) controls brake fluid pressure (brake force) according to the command from the chassis control module.
By controlling the brake fluid pressure (brake force), behavior of the vehicle in the vertical direction decreases, and riding comfort is improved.

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- Brake fluid pressure (brake force) is controlled according to driving conditions.

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SYSTEM DIAGRAM

NOTE: TCM is applied to CVT models.

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INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table:

Component parts	Signal description
ECM	Transmits the following signals to chassis control module via CAN communication: Accelerator pedal position signal Request drive torque signal Request drive torque status signal Engine speed signal
ABS actuator and electric unit (control unit)	Transmits the following signals to chassis control module via CAN communication: Front LH wheel speed signal Front RH wheel speed signal Rear LH wheel speed signal Rear RH wheel speed signal ABS operation signal TCS operation signal VDC operation signal Vehicle speed signal Decel G signal Side G signal VDC OFF switch signal Brake fluid pressure signal VDC accept permission signal Receives the active ride control signal from chassis control module via CAN communication.
BCM	Transmits the stop lamp switch signal to chassis control module via CAN communication.
IPDM E/R	Transmits the ignition switch ON signal to chassis control module via CAN communication.
TCM	Transmits the following signals to chassis control module via CAN communication: Current gear position signal Input speed signal
Combination meter	Receives the chassis control malfunction display request signal from chassis control module via CAN communication.
Steering angle sensor	Transmits the steering angle sensor signal to chassis control module via CAN communication.

Chassis control to integrally control the driving system was adopted.
Chassis control module inputs the necessary information for control from CAN communication and each switch and integrally controls each system. Refer to the following table for systems controlled and input and output signals.

Function		Reference
Intelligent trace control function		System Description
Intelligent engine brake control function		System Description
Active ride control function		System Description

SYSTEM DIAGRAM

NOTE: TCM is applied to CVT models.

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INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

Component parts	Signal description
ECM	Transmits the following signals to chassis control module via CAN communication: Accelerator pedal position signal Engine speed signal Estimate drive torque signal Request drive torque signal ECM malfunction signal Request drive torque status signal
ABS actuator and electric unit (control unit)	Transmits the following signals to chassis control module via CAN communication: Front LH wheel speed signal Front RH wheel speed signal Rear LH wheel speed signal Rear RH wheel speed signal TCS operation signal VDC operation signal Side G signal VDC OFF switch signal Brake fluid pressure signal Steering angle signal VDC accept permission signal ABS operation signal Vehicle speed signal Decel G signal ABS malfunction signal VDC malfunction signal TCS malfunction signal Yaw rate signal Receives the following signals from chassis control module via CAN communication: Intelligent trace control signal Intelligent engine brake control signal Active ride control signal
BCM	Transmits the following signals to chassis control module via CAN communication: Stop lamp switch signal Turn signal switch signal Brake pedal position switch signal BCM malfunction signal
TCM	Transmits the following signals to chassis control module via CAN communication: Current gear position signal CVT target gear ratio signal CVT accept permission signal Input speed signal TCM malfunction signal
Combination meter	Transmits the following signals to chassis control module via CAN communication: Intelligent trace control setting change request signal Intelligent engine brake setting change request signal Combination meter malfunction signal Receives the chassis control malfunction display request signal from the chassis control module via CAN communication.
Steering angle sensor	Transmits the steering angle sensor signal to the chassis control module via CAN communication.