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 and DSC) of the DSC system.

•  Outputs the vehicle speed signal to the car-navigation unit.

•  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.

TCM (AT)

•  Transmits gear/selector lever target 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 and DSC) of the DSC system. • Outputs the vehicle speed signal to the car-navigation unit. • 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.
TCM (AT)	• Transmits gear/selector lever target 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.