Understanding Anti-Lock Braking System (ABS)

By | August 31, 2016

We know that generally wheels will slip and lockup during excessive braking or when braking on a slippery road surface like ice and wet surface. Due to this sometimes vehicle lose steering stability and this also causes for extended stopping distance which can be fatal. So what can be the solution or remedy of this? This is the situation where ABS lands and acts as some God.

So What is Anti-lock Braking System (ABS)?

Anti-lock braking system is a modern automobile safety equipment of motorcycles and multi-wheelers vehicles. Here ABS manipulates the wheel slip such that a maximum friction and the lateral stability (steering stability) is also obtained. All this is to stop the vehicle in the potential shortest distance while maintaining the direction control.

How Anti-Lock Braking System Works?

The ultimate goal for the control design is to regulate the wheel velocity. But this is not something a radical innovation, instead of that we can take it as an architectural innovation.

The important aspect of breaking: Credence braking and threshold braking are used by the expert drivers from the previous generation braking system, and now it becomes faster and with the better control mechanism. The complicated relationship between the components and parameters of Anti-lock braking system (ABS) make it a highly nonlinear control problem. If the surface grip changes or excessive braking pressure occurs, ABS can detect the changes in the speed of the motorcycle wheel and then it automatically adjust the braking force to prevent from locking the bike. The wheel speed sensors mounted on the front and rear wheel. Measure the rotational speed continuously and deliver the data to an electronic control unit (ECU). Depending on a certain threshold the ECU checks for the 1) deceleration of wheels, 2) whether the brake slip 3) whether it enters into an unstable zone. ECU signals the hydraulic unit to hold or to release pressure to counter measure the irregularities. When the signal shows it is in the stable area, the pressure got increased again. Previously it was a piston which works to control the fluid pressure, but now solenoid valves replaced it.

As mentioned clearly, the method of ABS for motorcycles indeed contain some particular advantages and disadvantages.

Advantages of Anti-Lock Braking System (ABS)

Here are some main benefits of this anti-lock braking system are as follows:

1. Stopping On Icy Roads: It helps inevitable lock-ups and skidding, whether it is slippery or not. It helps drivers to have control of particular motorcycles.

2. Lower Insurance Cost: Because it is a thoroughly checked safety device, it has low insurance cost.

3. Better Resale Value: As it is an important feature in today’s time; it has a higher resale value.

4. Traction Control: An ABS shares some of the infrastructures of a traction management system, where new expertise helps to make sure that every wheel has traction on the road. That makes it easy for makers to fix both of these characters at the factory.

Disadvantages of Anti-Lock Braking System (ABS)

The advantages of ABS are quite evident, but there are disadvantages too:

1. Inconsistent Stop Timing: Though this system was set up for a surer brake system, many drivers complaints of lengthy stopping distances for customary conditions.

2. Expense: an ABS can be expensive to maintain thoroughly. Sensors which are on the wheel can cost hundreds of dollar to fix. This is a main significant disadvantage.

3. Delicate System: This system is too sensitive. It is easy to cause a problem if one wants to experiment with their brakes. This issue includes disorientation too.

Here is a video which shows how Anti-Lock Braking System (ABS) in motorcycle to save the rider.