![]() It monitors input from each wheel sensor and adjusts brake pressure according to programmed logic. The sensor sends this signal to an electronic control unit (ECU). Most systems use magnetic pickups that generate an AC signal as the wheel spins. Here’s an overview of how the major parts work together: Wheel Speed SensorsĪBS has speed sensors at each wheel that monitor how fast they are rotating. How Anti-Lock Brakes WorkĪBS uses a combination of mechanical and electronic components to monitor and adjust brake pressure. It’s a crucial safety component in modern vehicles. The National Highway Traffic Safety Administration estimates ABS reduces fatal crashes by 18% for cars and 8% for trucks and SUVs. Having ABS gives you the best combination of stopping power, vehicle control, and directional stability. The subtle pulsations allow the wheels to slow at the maximum rate without ceasing rotation. The system pulses the brakes many times per second during hard braking. ![]() This increases the likelihood of a crash.ĪBS helps you steer and brake simultaneously. The tires skid and slide, lengthening your stopping distance. When wheels stop rotating, you lose the ability to steer the vehicle. Without ABS, if you slam on the brakes, the wheels stop spinning. ABS essentially stops your brakes from “locking up” and skidding during an emergency stop. It’s a safety system that allows the wheels on your car or truck to maintain traction with the road while you brake. What is ABS and Why is it Important?ĪBS stands for Anti-Lock Braking System. Get your speed down before turning and brake in a straight line when possible. ABS improves safety and control but normal brake techniques still apply.Press down firmly and let the system work. Do not pump the brake pedal yourself when ABS activates.You’ll feel the pedal pulse as this occurs. ABS constantly modulates brake pressure to maximize stopping force without lockup.Key components of ABS include wheel speed sensors, an electronic control unit, hydraulic valves, and a pump.This allows you to steer and brake at the same time. ABS prevents dangerous wheel lockup during emergency braking situations.6.6 How do I know if my ABS needs repair? Key Takeaways
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