ABS (Anti-Lock Braking System)
As we know a vehicle moves due to the frictional force between the tyre and road. When we apply brakes, the brakes apply a torque in the opposite direction as that of friction and the wheel gradually comes to rest. This is how normal brakes work.
Now, whenever we are traveling on smooth surfaces like snow the friction coefficient is low and hence less frictional force. When a brake is applied in these conditions or even when you brake hard on a regular surface the amount of torque is so high that the vehicle's wheels stop rotating and start sliding. This is known as locking of wheels. Unless you are a skilled drifter this is potentially a dangerous situation as you don't have control over the wheels. The function of abs is to prevent the wheels from locking even under very hard braking or on surfaces with low friction like snow, wet roads.
Traction Control System
Traction control is basically a alternative function of ABS. As we have seen in many movies that when a car accelerates very hard the tyres just spin there for a moment and smoke is produced or when someone performs a burnout the tyres spinning without the car moving forward. That condition is known as loss of traction.
The function of traction control, as you may have guessed, is to prevent this. Whenever the system detects wheelspin during acceleration it deploys various measures to counter it. Some of the most common are :-
1. Regulating braking pressure as mentioned above.
2. Reducing the amount of torque provided to the wheels.
3. Regulating the amount of fuel released to the engine.
As we know a vehicle moves due to the frictional force between the tyre and road. When we apply brakes, the brakes apply a torque in the opposite direction as that of friction and the wheel gradually comes to rest. This is how normal brakes work.
Now, whenever we are traveling on smooth surfaces like snow the friction coefficient is low and hence less frictional force. When a brake is applied in these conditions or even when you brake hard on a regular surface the amount of torque is so high that the vehicle's wheels stop rotating and start sliding. This is known as locking of wheels. Unless you are a skilled drifter this is potentially a dangerous situation as you don't have control over the wheels. The function of abs is to prevent the wheels from locking even under very hard braking or on surfaces with low friction like snow, wet roads.
EBD (Electronic BrakeForce Distribution System)
EBD is basically a subsystem of ABS and it always works in conjunction with an ABS system. There main job of EBD is to optimise brake force on each wheel individually so to get maximum breaking power without losing control. It can alter braking pressure on each wheel individually depending on the conditions and weight distribution of the vehicle at that moment.
Traction Control System
Traction control is basically a alternative function of ABS. As we have seen in many movies that when a car accelerates very hard the tyres just spin there for a moment and smoke is produced or when someone performs a burnout the tyres spinning without the car moving forward. That condition is known as loss of traction.
The function of traction control, as you may have guessed, is to prevent this. Whenever the system detects wheelspin during acceleration it deploys various measures to counter it. Some of the most common are :-
1. Regulating braking pressure as mentioned above.
2. Reducing the amount of torque provided to the wheels.
3. Regulating the amount of fuel released to the engine.
ESP (Electronic Stability Program)
ESP is basically a control unit in designed to cut in and help whenever it detects a loss in steering control. It continuously monitors the direction the driver wants to go (by measuring the angle by which the steering has been rotated) versus the direction in which the car is actually going. If the system the car is not going in the intended direction it cuts in and tries to regain control by automatically braking and feeding corrective inputs to the steering.
It's basically to avoid understeer and oversteer while turning.
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