How Does My Vehicle's ABS System Work?
Whether you drive a Acura, Audi, BMW, or Buick, ensuring that your car’s an anti-lock braking system is in tip-top shape is essential. Your car’s anti-lock braking system (ABS) is a safety system that prevents your vehicle’s wheels from locking up when you brake. With your anti-lock braking system, you can maintain some steering ability and avoid skidding while braking. The anti-lock braking system modifies the brake fluid pressure to bring the speed of the wheel back to the minimum slip level that is mandatory for optimal braking performance. The system has four major components:
- Valves: There are valves within the ABS control unit that are controlled by the anti-lock braking system. In the first position, the brake valve is open, allowing the pressure from the master cylinder to be transferred to the brakes. In the second position, the brake valve remains closed and pressure from the master cylinder to the brakes is constrained. In the third position, the valve releases some of the pressure on the brakes. The third position is used as your car comes to a halt.
- Electric Control Unit: The computerized ECU receives signals from the sensors in the circuit and controls the brake pressure.
- Hydraulic Control Unit: By increasing hydraulic pressure, the computerized hydraulic control unit applies or releases the brakes under the anti-lock conditions, depending on the signals given from the ECU.
- Speed Sensors: These sensors, also known as “wheel speed sensors” or “wheel sensors,” monitor the speed of each wheel and determine how the wheels should accelerate or decelerate when you brake. If your vehicle needs a speed sensor replacement, come to Escondido Autopros- Auto Repair & Hybrid Repair in San Diego County.
The anti-lock braking system monitors the speed of each wheel and keeps them turning at the same speed by applying the appropriate amount of pressure to individual wheels. Having a functioning anti-lock braking system helps you maintain control and decreases the chance of your vehicle skidding.





