ANTILOCK BRAKE SYSTEM
04–13–7
04–13
ABS CONTROL OPERATION
CHU041343750S06
• When the ABS CM determines wheel slip conditions based on the signals from the ABS wheel-speed sensors
during braking, the ABS CM operates the ABS HU inlet and outlet solenoid valves, reducing and maintaining
brake fluid pressure in accordance with the wheel slip factors. Then, when the wheel slip condition has passed,
brake fluid pressure is increased and maintained, ensuring braking with a constantly stable brake force.
Operating Condition Transition Diagram
End Of Sie
0
0
ESTIMATED VEHICLE SPEED
WHEEL SPEED
SPEED
SOLENOID VALVE CONTROL
BRAKE FLUID
PRESSURE
PRESSURE REDUCTION
TIME
PRESSURE MAINTAINED
PRESSURE INCREASE
HIGH
HIGH
TIME
CHU0413S010
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