ABS, ASR, ESP
Experienced person explaining the steps
What these abbreviations mean and how they work, says Zbigniew Dobosz, CTO and Head of the D&D website.
Road safety is being improved by car manufacturers through the introduction of new systems and features. Active protection is introduced to predict and prevent accidents while the car is moving, supporting the driver. Active systems are the basic components of active safety. Let's take a look at their work.
ABS
To avoid wheel lockup, the system allows you to change the braking force on each wheel separately by adjusting the pressure on the brake pads. It consists of: a brake pump, a hydraulic adjustment unit with a high pressure fuel pump and solenoids, speed sensors on each wheel, a calculator, a brake diagnostic indicator. In this case, action will be taken to slightly add gas to prevent the front wheels from spinning. This action is called IAS.
The electronic brake force distribution REF replaces the mechanical compensator. It allows you to distribute the braking force between the rear and front wheels of the car and thus prevents the car from turning 180 degrees.
ASR
The system consists of traditional ABS elements, a special diagnostic icon, communication with the engine and transmission ECU, and a foreline pump. The calculator estimates wheel slip using sensors on the wheels. During the acceleration phase of the vehicle, if a wheel (or several wheels) has a tendency to skid, the system uses its calculator to optimize tire skid. The brakes are actuated by a foreline pump and a hydraulic unit.
ESP
This system ensures the stability of the vehicle under all circumstances. In particular, it controls the behavior of the car when it loses traction on a corner. It allows, within the framework of the laws of physics, to correct the error of driver inattention when cornering in the event of a clutch break at excessive speed or inadequate braking. The ESP system is designed to handle all these critical driving situations by preventing loss of traction at the first sign of starting off by acting on the engine and brakes. ESP also performs the functions of ABS, REF, ASR and MSR.
