Ask how ABS works, ask for a detailed answer Thank you

The ABS anti-lock braking system is controlled by the car's micro-trillion virtual computer, which can keep the combustion wheel of the car family rotating when the vehicle is braking, so as to help the driver control the vehicle to achieve a safe stop. This anti-lock braking system uses a speed sensor to detect the speed of the wheels, and then transmits the wheel speed signal to the microcomputer, which inputs the wheel speed according to the input.

Control the slippage rate of the wheels by repeatedly reducing or increasing the braking pressure on the wheels, keeping the wheels turning. Keeping the wheels rotating during braking not only ensures the ability to control the direction of travel, but also provides higher braking power in most road conditions than locked wheels.

Magnetic inductive wheel speed sensor.

The speed signal probe consists of a sensor housing, a permanent magnet, an induction coil and a magnetic pole, and the ring gear that rotates with the wheel is the trigger rotor that generates the sensing signal.

When the wheel rotates, the gap at the magnetic terminal changes periodically with the rotation of the ring gear (or the teeth of the ring gear cut the magnetic field lines), so that the magnetic flux through the induction coil changes, and the induction coil generates an alternating voltage signal corresponding to the speed of the wheel.

The working principle of ABS: in the process of automobile braking, the wheel speed sensor continuously transmits the speed signal of each wheel to the ABS electronic control unit in time, and the ABS electronic control unit processes the signal input of the four speed sensors according to the set control logic, calculates the reference vehicle speed of the car, the speed of each wheel and the deceleration, and determines the slip rate of each wheel.

ABS is called automobile braking anti-lock system, referred to as ABS system. During the emergency braking of the vehicle, the ABS system can control the size of the braking force in real time, so that the vehicle always maintains good directional stability and operability, prevents side slip and deviation, and improves the safety performance of the car when braking.

The ABS system includes a transmission hydraulic servo braking system and a brake master cylinder, a brake wheel cylinder, a vacuum booster and a pipeline, as well as an electronic control unit, sensors, pressure regulators, warning lights, etc.

After the car slows down, once the ABS computer detects that the wheel is holding this good state and disappears, it will let the main control valve close, so that the system can be transferred to the normal braking state to work. If the pressure of the accumulator drops below the safe limit, the red brake fault indicator and the amber ABS fault indicator illuminate. In this case, the driver has to use a large force to apply a deep pedal-type braking method to effectively brake the front and rear wheels.

Photo by Qi Hesong) @2019

The working principle of ABS: in the process of automobile braking, the wheel speed sensor continuously transmits the speed signal of each wheel to the ABS electronic control unit in time, and the ABS electronic control unit processes the signal input of the four speed sensors according to the set control logic, calculates the reference speed of the car, accommodates the speed and deceleration of each wheel, and determines the stool movement rate of each wheel. Introduction of ABS:

1. ABS is called the brake anti-lock system in the car jujube wax, referred to as the ABS system. 2. ABS can control the braking force in real time during emergency braking, so that the vehicle can always maintain good directional stability and operability, prevent side slip and deviation, and improve the safety performance of the car during braking.