DSC HU PART CONSTRUCTION/OPERATION

id041500100900

• The ABS HU mainly consists of the pressure-retention/pressure reduction solenoid valves, pump motor (pump), stability control solenoid valves and traction switching solenoid valves.

Function of main component parts

Part name

Function

Pressure-retention solenoid valve
• Adjusts the fluid pressure in each brake system according to DSC HU/CM signals.
Pressure-reduction solenoid valve
• Adjusts the fluid pressure in each brake system according to DSC HU/CM signals.
Stability control solenoid valve
• Switches the brake hydraulic circuits during and according to normal braking, ABS and EBD control, TCS control and DSC control.
Traction switching solenoid valve
• Switches the brake hydraulic circuits during and according to normal braking, ABS and EBD control, TCS control and DSC control.
Reservoir
• Temporarily stores brake fluid from the caliper piston to ensure smooth pressure reduction during ABS and EBD control, TCS control and DSC control.
Pump
• Returns the brake fluid stored in the reservoir to the master cylinder during ABS and DSC control.
• Increases brake fluid pressure and sends brake fluid to each caliper piston during TCS control and DSC control.
Pump motor
• Operates the pump according to DSC HU/CM signals.