ABS CONTROL OUTLINE


BHE041543750T05

• ABS control occurs when wheel slip is determined by the DSC CM (based on the four ABS wheel-speed sensors). Then, the DSC HU inlet and outlet solenoid valves are operated and brake fluid pressure is controlled accordingly to prevent wheel lock-up.

• Use of ABS control during emergency braking or on slippery road surfaces allows directional stability to be maintained, steerability ensured and stopping distance to be reduced.

• ABS control has independent control systems for both the front and rear wheels.

Block Diagram

1
ABS wheel-speed sensor (LF)
2
ABS wheel-speed sensor (RF)
3
ABS wheel-speed sensor (LR)
4
ABS wheel-speed sensor (RR)
5
Solenoid valve
6
Pump motor
7
Caliper piston (LF)
8
Caliper piston (RF)
9
Caliper piston (LR)
10
Caliper piston (RR)