Anti-lock brakes come standard on most vehicles these days, but most people don’t know the principles behind them. Here’s a brief rundown on how anti-lock brakes work.
Anti-lock brakes function on the assumption that skidding wheels have less traction than wheels that are rolling. If your wheels keep rolling when you push your brakes—that is, if they don’t lock up—you’ll have more control over the wheels and be able to stop more safely.
So anti-lock brakes use an automatic system to sense when the wheels are going to lock using speed sensors on the wheels. When you decelerate quickly or in an unexpected way, the sensors send information to the valve and pump, which decreases pressure to the brakes until it accelerates, then increases pressure until it decelerates. This helps the brakes slow down at the same rate as the car.
The ABS system will keep the brakes close to the point of locking, so that you have as much braking power as possible without the wheels actually locking up. So you can still stop quickly with ABS brakes, but they won’t let your wheels lock more quickly than your car can stop, which would lead to skidding.
For more information on anti-lock brakes, don’t hesitate to contact our Service & Parts team here at Wiesner of Huntsville and we’d be happy to help you!