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ABS system for Vans

ABS-A (anti-lock braking system) is part of the braking system of vehicles. Almost all modern cars have ABS. An ABS system prevents skidding and slipping of the wheel when the tire is in contact with the road. Anti-lock braking systems are activated if the wheels slip on snowy, icy, wet or sandy road surfaces.

ABS allows the vehicle to stop quickly or to be steered in the right direction when traction is tough. The main components of the anti-lock braking system are: speed sensors, pumps, valves and the controller. Anti-lock braking systems detect when the wheel is about to lock.

Speed ​​sensors, which are located at each wheel, or in some cases in the differential, provide this information. The valves are located in the brake line of each brake and are controlled by the ABS-a. In some systems, the valve has three working positions. In the first position, the valve is open and the pressure from the master cylinder goes right through.

In position two, the valve blocks the line, isolating that brake from the master cylinder. This avoids increasing further pressure if the driver pushes the brake pedal hard. In the third position, the valve releases pressure from the brake. Since the valve is able to release pressure from the brakes, there must also be a way to replace that pressure.

This is the job of the pump, which takes action when pressure drops in the brake lines. The controller of the anti-lock braking system is a computer in the car. It monitors the speed sensors and passes control valves. There are many different variations and control algorithms for ABS systems.

The controller monitors the speed sensors at any time and observes deceleration in the wheel. The ABS controller knows that such a rapid deceleration is not right, so it reduces the pressure on the brake, then it increases the pressure until it detects a delay again. This happens very quickly, before the tire can actually significantly change speed.

The result is that the tire slows down at the same speed as the car. This gives the system maximum braking power. When the ABS system is in operation, you can feel pulsing in the brake pedal, which comes from the rapid opening and closing of valves. Some ABS systems have a cycle up to 15 times per second