How Can Anti-lock Braking System (ABS) Technology In Cars Work?
ABS prevents the wheels from locking up, thus avoiding uncontrolled skidding of the automobile and decreases the distance travelled without slipping.
Driving on expressways can be fun and thrill-inducing, as many of you surely know. One gets to unleash a car’s full potential. The city streets keep us grounded, but the moment you hit the highway, there is no looking back. You will almost never see a car going below 100 km/hr.
The situation becomes especially tricky during kingston auto body shop monsoons, as cruising in a car at these high rates is the perfect recipe for a disaster if the roads are slick. Nevertheless, it does happen, so what can you do in a situation on a slippery road whenever you have to suddenly apply the brakes of your car? With no anti-lock brake system, the wheels of your car stop spinning and the car will begin to skid. You’ll completely lose control over the automobile and the results could be deadly.
Anti-lock braking systems (ABS) take a lot of the challenge from this sometimes nerve-wrecking event. In fact, on slippery surfaces, even professional drivers can not stop as fast without ABS as an ordinary motorist can with ABS.
What’s Anti-lock braking system (ABS) in cars?
As its name signifies, the anti-lock braking system is a safety system in cars and other automobiles that keeps their brakes from locking up and helps their drivers to maintain steering control. Also known as anti-skid braking system sometimes, it empowers the wheels of a car to maintain tractive contact with the automobile safety floor so that they don’t enter an uncontrolled skid.
With ABS, you have more control on your vehicle during situations such as sudden braking. Basically, it is intended to help the driver maintain some steering ability and avoid skidding while braking.
ABS Working principle
The fundamental concept behind anti-lock brakes is straightforward. It prevents the wheels from locking up, thus avoiding uncontrolled skidding. ABS generally offers improved vehicle control and decreases stopping distances on dry and slippery surfaces.
A skidding wheel (where the tire contact patch is sliding relative to the street ) has less traction (grip of the tire on the road) than a non-skidding wheel. By way of instance, if your car drives over a street covered in ice, it’s unable to proceed and the wheels will keep spinning, because no grip is present. This is because the contact point of the wheel is slipping relative to the ice.
ABS modifies the collision centre edmonton brake fluid pressure, independent of the quantity of pressure being applied on the wheels, to bring the speed of the wheel back to the minimal slip level that’s mandatory for optimal braking performance.
ABS has four major elements:
1) Speed Sensor
This sensor monitors the speed of each wheel and determines the necessary acceleration and deceleration of the wheels. It is composed of an exciter (a ring with V-shaped teeth) and a cord coil/magnet assembly, which creates the pulses of electricity as the teeth of the exciter pass in front of it.
The valves regulate the air pressure to the brakes during the ABS action. There is a valve in the brake line of each brake that is controlled by the ABS. In the first place, the brake valve is open and it helps the pressure from the master cylinder to be transferred into the brakes. In the second place, the brake valve stays closed and pressure from the master cylinder to the brakes is constrained. In the third position, the valve releases some of the pressure on the brakes.
The third step is repeated until the auto body repair kingston vehicle comes to a halt. The resistance that you feel when braking abruptly at high rates is actually the brake valves controlling the pressure which has been transferred into the brakes in the master cylinder.
3) Electronic Control Unit (ECU)
The ECU is an electronic control unit that receives, amplifies and filters the sensor signals for calculating the wheel rotational speed and acceleration. The ECU receives a signal from the sensors in the circuit and controls the brake pressure, according to the data which is examined from the unit.
4) Hydraulic Control Unit
The Hydraulic Control Unit receives signals from the ECU to apply or release the brakes under the anti-lock problems. The Hydraulic Control Unit controls the brakes by raising the hydraulic pressure or bypassing the pedal force to decrease the braking power.
ABS in operation
While braking, if a wheel-locking scenario is detected or anticipated, the ECU alarms the HCU by sending a current and controls it to release the brake pressure, letting the wheel velocity to increase and the wheel slide to decrease. When the wheel velocity increases, the ECU reapplies the brake pressure and restricts the wheel slip to a certain degree (Note: When the braking action is initiated, a slippage between the tire and the road surface in contact will happen, which makes the speed of the automobile different from that of the tire). The Hydraulic Control Unit controls the brake pressure in each wheel cylinder depending on the inputs in the machine detector. Because of this, this controls the wheel speed. This process is repeated for the next braking operation.