The ABS system prevents wheel lock-up by monitoring each rack with a wheel accelerate detector. When the wheel starts to skid, hydraulic press to the brake is temporarily reduced to prevent the wheel from skidding .
What will I feel when the ABS engages?
As a driver, you will feel the brake bicycle pump and a “ grate ” mechanical noise as the ABS pump and the valve assembly operates to meter the brake pressure to the involve roulette wheel ( s ). A screech noise may be heard from the tires as they skid for very short periods. No warning lights will illuminate during normal ABS operation.
How should I react when the ABS engages?
If the ABS engages in a panic site, you credibly wo n’t have time to think of what to do and will keep your foot firm planted on the brake pedal point, which you should. There are some models that will do this for you—this feature is called brake assist. The ABS will apply the utmost permissible brake pressure during a panic stop situation .
The panic catch situation is what the ABS system is specifically designed for and its aim is not necessarily to stop the fomite faster, but to allow the driver to maintain steering see. The system helps the driver tip around danger rather of skidding into it .
What other types of driving conditions can cause the ABS to engage?
Anything that will cause a roulette wheel to stop turning during braking will cause the ABS system to engage. Hitting a bump, crossing railroad track tracks, or traversing any slick surface while braking can cause a wheel to stop turn and the ABS to engage. These non-panic situations are where drivers tend to release brake pressure, which results in longer discontinue distances .
What could I do wrong when the ABS engages?
The most common error drivers make when the ABS engages is to release pressure on the brake pedal. This reaction will constantly increase stopping outdistance and gives the impression that something is wrong with the brake organization .
Releasing brake pressure during an ABS stop prevents the system from performing its speculate and results in a loss of braking press to the wheels that have not lost grip. As stated above, the correct driver reaction is to hold steady or even increase bracken blackmail in order to achieve the shortest possible stopping outdistance .
What if my ABS engages when it shouldn’t?
It ‘s possible for the ABS to engage when it should n’t. The most common reason for this is a defective roulette wheel speed detector. If a wheel accelerate senor reads 0 MPH falsely while braking, the system will engage and no fault code ( sulfur ) will be stored. If you suspect your ABS system is engaging when it should not, road testing your vehicle with a qualify technician may be the best way to confirm this.
Peculiarities of ABS
many technicians recommend that owners get the “ feel ” of their ABS system before a panic situation arises. A good manner to do this is to find a SAFE afford area—a deserted park draw for example. From a focal ratio of about 30 MPH, apply the brakes hard, as you would in a panic situation, taking note of what happens when the ABS engages. Knowing what to expect when the ABS engages can be beneficial if the system engages unexpectedly .
There are some situations when you could be better off without ABS ; some examples would be loose gravel, powdery bamboozle, etc. What happens in these types of conditions is this—when a wheel begins to skid in the at large material, the gravel or snow begins to build up in front of the bore, which helps slow the vehicle. The ABS is designed to keep the wheels turn, which will prevent build up in front of the tires—this increases stopping distance .
The ABS systems are not designed to be turned on and off by the driver. The best reaction to a brake shoe in these types of conditions would be to allow the ABS system to work by holding firm or increasing pressure on the brake pedal as described above. Always keep in mind that stopping distances will be longer in these types of driving conditions .
Some vehicles have incorporated other systems into their basic ABS—tire pressure monitoring, traction master, and stability control. Some tire coerce monitoring systems use the accelerate of the wheels to calculate low tire pressure—a low tire will be slightly smaller, resulting in a slenderly faster wheel focal ratio. The grip control systems look for rack spin from the drive wheels on acceleration and can reduce engine power or apply the brake on the moved wheel to stop the spin ( some systems do both ). The constancy dominance systems add a steering wheel military position detector and yaw rate detector, which adjusts locomotive output and applies braking power to a specific wheel ( or wheels ) to help control a skid .
Key component — ABS valve assembly
The anti-lock bracken system ( ABS ) valve assembly is operated by the ABS control faculty. The valves candid and close as necessary when the ABS is active, providing the correct brake fluid pressure to each bicycle to prevent bicycle lockup during braking.
Xem thêm: How to check and top up your brake fluid
Additional key parts
ABS wheel speed detector, ABS differential gear detector, ABS see module
How to Fix Your Brakes
Video, Step-by-Step Instructions, Parts & Tools List