Mazda CX-5 Service & Repair Manual: ABS Control
Outline
-
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.
Feature
-
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.
-
The ABS control system has independent front wheel control and unified control (select low) for the rear wheels.
NOTE:
-
Select low control: A control system in which the left and right vehicle wheel speeds are compared and brake fluid pressure is controlled according to the wheel most likely to lock-up.
-
Construction
Block Diagram
Operation
-
When the DSC CM determines wheel slip conditions based on the signals from the ABS wheel-speed sensors during braking, the DSC CM operates the DSC 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.
Control condition transition diagram
ABS
...
ABS Wheel Speed Sensor And ABS Sensor Rotor
Purpose/Function
The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition
of each wheel and transmit this information to the DSC HU/CM.
The signal from the ABS w ...
Other materials:
Warning/Indicator Lights
Warning (Display Indication)
Message information such as system operations or malfunctions is indicated in
the display. Check the vehicle condition or have the vehicle inspected at an Authorized
Mazda Dealer according to the indication.
Brake System Warning Light
This warning has th ...
Rear Suspension
Outline
E-type multi-link rear suspension has been adopted.
The longitudinal span of the rear crossmember was extended and the longitudinal
offset of the rear lateral link attachment position was reduced.
Welding flanges were removed from the rear cros ...
Torque Converter Clutch (TCC) Control [Fw6 A EL, Fw6 Ax EL]
Outline
For TCC control, a newly developed, full range TCC control has been adopted.
The TCC range has been significantly widened by having the smoothness unique
to the torque converter during acceleration from a stop take precedence and
actively controlling TCC directly after accele ...