Abs Control Operation; Operating Condition Transition Diagram - Mazda CX-9 2007 Service Highlights

DYNAMIC STABILITY CONTROL/ROLL STABILITY CONTROL

ABS CONTROL OPERATION

• When the dynamic stability control (DSC)/roll stability control (RSC) control module (CM) determines wheel slip
conditions based on the signals from the antilock brake system (ABS) wheel-speed sensors during braking, the
DSC/RSC CM operates the DSC/RSC hydraulic unit (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

HIGH
SPEED
SOLENOID VALVE CONTROL
PRESSURE REDUCTION
PRESSURE MAINTAINED
PRESSURE INCREASE
HIGH
BRAKE FLUID
PRESSURE
End Of Sie
0
0
ESTIMATED VEHICLE SPEED
WHEEL SPEED
id041800818500
04-18
TIME
TIME
ac9uun00000389
04-18–19