ANTI-LOCK BRAKE SYSTEM SYSTEM DESCRIPTION


  1. FUNCTION DESCRIPTION


    1. ABS (Anti-lock Brake System)

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

    2. EBD (Electronic Brake force Distribution)

      The EBD control utilizes ABS, and performs proper brake force distribution between the front and rear wheels in accordance with driving conditions.

      In addition, when braking while cornering, it also controls the brake forces of the right and left wheels, helping to maintain vehicle behavior.

    3. BA (Brake Assist)

      The primary purpose of the brake assist system is to provide auxiliary brake force to assist a driver who cannot generate a large enough brake force during emergency braking, thus helping to maximize the braking performance of the vehicle.

  2. FUNCTION OF COMPONENTS

    Component Function
    Speed sensor Detects the speed of each wheel and inputs the data into the skid control ECU.
    Stop light switch Detects the brake pedal condition and inputs the status to the skid control ECU.
    Skid control ECU

    • Processes the signals sent from each sensor to control the ABS, EBD and BA.

    • Housed in the brake actuator assembly.
    ABS motor relay

    • Supplies power to the pump motor.

    • Housed in the skid control ECU.
    ABS solenoid relay

    • Supplies power to each solenoid.

    • Housed in the skid control ECU.
    Brake actuator assembly

    • Composed of the holding solenoid valves, pressure reduction solenoid valves, pump motor, etc., and adjusts the hydraulic pressure applied to each wheel cylinder.

    • Houses the skid control ECU.
    ABS warning light

    • Comes on to inform the driver that a malfunction in the ABS and/or BA has occurred.

    • Blinks to output DTCs.
    Brake warning light

    • Comes on to inform the driver that the parking brake is applied when the system is normal.

    • Comes on to inform the driver that the amount of brake fluid is low.

    • Comes on to inform the driver that a malfunction in the EBD has occurred.
    ECM Detects the engine information and inputs the results to the skid control ECU via CAN communication.