ABS Actuator And Electric Unit (Control Unit)

COMPONENT PARTS


ABS Actuator and Electric Unit (Control Unit)

Electric unit (control unit) is integrated with actuator and motor/accumulator assembly and comprehensively controls VDC function, TCS function, ABS function, EBD function, hill start assist function or brake limited slip differential function.

ELECTRIC UNIT (CONTROL UNIT)
- Brake fluid pressure, engine and transmission are controlled according to signals from each sensor.
- If malfunction is detected, the system enters fail-safe mode.

ACTUATOR
The following components are integrated with ABS actuator.

Motor/accumulator Assembly

Pump
- Operates the pump drive according to signals from ABS actuator and electric unit (control unit) by the motor.

Motor
- Operates the motor drive according to signals from ABS actuator and electric unit (control unit).

Accumulator
- The accumulator accumulates brake fluid conveyed by the motor and pump.

Motor Relay
Operates the motor ON/OFF according to signals from ABS actuator and electric unit (control unit).

Actuator Relay (Main Relay)
Operates each valve ON/OFF according to signals from ABS actuator and electric unit (control unit).

ABS IN Valve and ABS OUT Valve
Increases, holds or decreases the fluid pressure of each caliper according to signals from ABS actuator and electric unit (control unit).

Cut Valve 1, Cut Valve 2
Shuts off the ordinary brake line from master cylinder to signals from ABS actuator and electric unit (control unit).

Suction Valve 1
Suction Valve 1 switches the brake path to convey accumulator pressure to the front system, according to a signal transmitted from the ABS actuator and electric unit (control unit).

Suction Valve 2
Suction valve 2 releases accumulator pressure, according to a signal transmitted from the ABS actuator and electric unit (control unit).

Control Pressure Sensor (models with Advanced Driver Assistance System)
Detects the brake fluid pressure of brake caliper side and transmits a signal to ABS actuator and electric unit
(control unit).

Accumulator Pressure Sensor
The accumulator pressure sensor detects brake fluid pressure accumulated in the accumulator and conveys the detected result to the ABS actuator and electric unit (control unit).

Master cylinder Pressure Sensor
Detects the brake fluid pressure of master cylinder part and transmits a signal to ABS actuator and electric unit
(control unit).