DYNAMIC STABILITY CONTROL (DSC) CONSTRUCTION

id041500100500

• The DSC system consists of the following parts. While each part has a regular function in other systems, only the function during DSC control is listed.

Part name

Function

DSC HU/CM

•  Makes calculations using input signals from each sensor, controls brake fluid pressure to each wheel, and actuates each function (ABS, EBD, TCS, DSC and brake assist control) of the DSC system.

•  Outputs the torque reduction request signal, vehicle speed signal and DSC system warning control data via CAN lines.

•  Controls the on-board diagnostic system and fail-safe function when there is a malfunction in the DSC system.

PCM

•  Controls engine output based on signals from the DSC HU/CM.

•  Transmits engine speed, tire and shift position data via CAN communication to the DSC HU/CM.

DSC indicator light

•  Informs the driver that the DSC is operating (vehicle sideslip occurring).

•  Informs the driver that the TCS is operating (drive wheel is spinning).

DSC OFF switch

•  Transmits driver intention to release DSC control to the DSC HU/CM.

DSC OFF light

•  Informs driver that DSC control has been released due to DSC OFF switch operation.

Wheel speed sensor

•  Detects the rotation condition of each wheel and transmits it to the DSC HU/CM.

Combined sensor

•  Detects the lateral-G (vehicle speed increase) and the yaw rate (vehicle turning angle) of the vehicle and transmits them to the DSC HU/CM.

Brake fluid pressure sensor (built into DSC HU/CM)

•  Detects the fluid pressure from the master cylinder and transmits it to the DSC HU/CM.

Steering angle sensor

•  Transmits the steering angle and steering angle sensor condition via CAN lines to the DSC HU/CM.

Part name	Function
DSC HU/CM	• Makes calculations using input signals from each sensor, controls brake fluid pressure to each wheel, and actuates each function (ABS, EBD, TCS, DSC and brake assist control) of the DSC system. • Outputs the torque reduction request signal, vehicle speed signal and DSC system warning control data via CAN lines. • Controls the on-board diagnostic system and fail-safe function when there is a malfunction in the DSC system.
PCM	• Controls engine output based on signals from the DSC HU/CM. • Transmits engine speed, tire and shift position data via CAN communication to the DSC HU/CM.
DSC indicator light	• Informs the driver that the DSC is operating (vehicle sideslip occurring). • Informs the driver that the TCS is operating (drive wheel is spinning).
DSC OFF switch	• Transmits driver intention to release DSC control to the DSC HU/CM.
DSC OFF light	• Informs driver that DSC control has been released due to DSC OFF switch operation.
Wheel speed sensor	• Detects the rotation condition of each wheel and transmits it to the DSC HU/CM.
Combined sensor	• Detects the lateral-G (vehicle speed increase) and the yaw rate (vehicle turning angle) of the vehicle and transmits them to the DSC HU/CM.
Brake fluid pressure sensor (built into DSC HU/CM)	• Detects the fluid pressure from the master cylinder and transmits it to the DSC HU/CM.
Steering angle sensor	• Transmits the steering angle and steering angle sensor condition via CAN lines to the DSC HU/CM.