System Description

HINT:

The skid control ECU forms a single unit with the brake actuator.

(a) ABS (Anti-lock Brake System)

The ABS helps prevent the wheels from locking when the brakes are applied firmly or on a slippery surface.

Brake Actuator

Brake Actuator

: CAN Communication System : Brake Fluid Pressure

(1) Operation description

The skid control ECU detects wheel lock conditions by receiving vehicle speed signals from each speed sensor, and sends control signals to the pump motor and solenoid valve to prevent the wheels from locking by controlling the brake fluid pressure of each wheel cylinder. The ABS warning light comes on when the ABS system malfunctions.

(b) EBD (Electronic Brake force Distribution)

The EBD control utilizes the ABS, realizing the proper brake force distribution between the front and rear wheels in accordance with the driving conditions and vehicle load. In addition, when the brakes are applied while cornering, it also controls the braking forces of the right and left wheels, helping to maintain vehicle stability.

Brake Actuator

Brake Actuator

Combination Meter

: CAN Communication System : Brake Fluid Pressure

Combination Meter

: CAN Communication System : Brake Fluid Pressure

(1) Operation description

The skid control ECU receives speed signals from each speed sensor to detect the slip conditions of the wheels and sends control signals to the solenoid. The solenoid valve controls the brake fluid pressure of each wheel cylinder and divides the control power properly between the front and rear wheels and the right and left wheels. The BRAKE warning light comes on to indicate malfunctions in the EBD system.

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