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What is ABS & How Does it Work?
There has been a lot of snow and ice on the roads in Massachusetts lately and when applying the brakes, you may have noticed some instances in which your car has had a mind of it’s own. Under certain circumstances and road conditions, your car’s internal computer activated the ABS -- also known as the Anti-lock Braking System
The ABS was introduced in the mid-1980’s as a way to help drivers maintain control of their vehicle’s steering and has since become a standard safety feature for cars. The system works to prevent the driver from over-applying the brakes, which may result in skidding, fishtailing, and accidents. ABS helps the driver steer while it automatically applies the brakes in a rapid pumping motion to slow down the car.
The system has four main components that all work in unison to keep your car’s wheels from skidding while you slow down. -Speed Sensors. Each of your car’s wheels have a speed sensor that relays information back to the ABS. -Valves. The ABS controls a small valve located within the brake line. This valve works to open, block, and release pressure on the brake line. -Pump. The pump works alongside the valve. If the valve releases pressure on the brakes, then the pump serves to re-apply pressure to the brake line. -Controller. This is the computer that monitors the rest of the components and ensures that each system fires at the precise moment it is needed in order to stop the vehicle. It also works to control the valves and speed sensors. In the event that you need to stop the car in a hurry on slippery roads, your ABS will activate and a pulsing sensation from the brake pedal will occur. This is the valves and pump at work trying to slow the car down. Keep in mind that in slippery road conditions, you should not pump the brakes if your car has ABS, as this defeats the purpose of having the system in the first place. Instead, apply constant and firm pressure to the brake pedal in order for the ABS to activate. Keep your foot on the brake pedal until you come to a complete stop. Don’t forget that you still have steering capabilities, as this is the intention of having the anti-lock brake system -- your wheels should never lock. If you’re ever unclear about whether or not your ABS is working properly, Hogan Tire & Auto can run critical systems diagnostic tests to make sure that all electrical and computerized components of your vehicle are in working condition. Schedule service online today or contact one of our seven area locations.
Written on Thursday, February 8, 2018 by Permalink |
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