DSC CM PART FUNCTION

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• The DSC CM makes calculations using signals input from each sensor, outputs a brake fluid pressure control signal to the DSC HU to actuate DSC system functions and outputs an engine output control signal to the PCM.

• The DSC HU/CM controls the following functions:

Function Table

Function name

Contents

ABS control function
• Controls brake fluid pressure when braking to maintain directional stability, ensure steerability and reduce stopping distance.
EBD (Electronic Brakeforce Distribution) control function
• Constantly controls proper distribution of brake fluid pressure to the front and rear wheels according to vehicle load, road surface and vehicle speed conditions to prevent early lock-up of the rear wheels.
TCS control function
• Controls traction to within the road surface friction limit and according to road and driving conditions to improve starting and acceleration performance, and safety.
DSC control function
• Suppresses strong over-steer and under-steer tendencies when turning by controlling engine output and braking of each wheel to assure driving safety.
CAN signal function
• Transmits the wheel speed signal to the PCM using CAN communication.
On-board diagnostic system
• A function that allows important parts of the DSC control system to perform self-diagnosis. In case a malfunction occurs, the warning lights illuminate to alert the driver, and at the same time a DTC is stored in the DSC HU/CM.
• When a malfunction is determined as a result of the on-board diagnosis test, system control is suspended or limited to prevent any dangerous situation while driving.

Block Diagram