What does the ABS anti-lock braking system mean?
1 Answers
ABS, the full name is Anti-lock Braking System. Its function is to automatically control the braking force of the brake during vehicle braking, preventing the wheels from locking up and maintaining a state of rolling and sliding (with a slip ratio of around 20%), ensuring that the adhesion between the wheels and the ground remains at its maximum. ABS is mainly classified based on channels. In ABS, the brake pipelines that can independently adjust the braking pressure are called control channels. ABS devices are divided into four-channel, three-channel, two-channel, and one-channel types. One-channel ABS: Also known as single-channel ABS, it involves setting up a brake pressure regulator in the rear wheel brake master cylinder and installing a wheel speed sensor on the rear axle differential (some may have one on each rear wheel). Two-channel ABS: This type of ABS struggles to balance directional stability, steering control, and braking efficiency, and is rarely used nowadays. Three-channel ABS: It independently controls the two front wheels while controlling the two rear wheels based on the low-select principle (i.e., both wheels are controlled by one channel, ensuring that the wheel with less adhesion does not lock up), also known as hybrid control. Four-channel ABS: Equipped with four wheel speed sensors, it features a brake pressure regulator in the pipeline leading to each of the four wheel brake cylinders, enabling independent control and forming a four-channel control configuration.
