Three-channel ABS (anti-locked braking system)

Abstract

The invention discloses a three-channel ABS (anti-locked braking system) which is applied to a triaxial semitrailer. Gear rings and corresponding ABS wheel speed sensors are installed at vehicle wheel parts at two sides of a front axle, a middle axle and a rear axle of the triaxial semitrailer; the ABS wheel speed sensors are all connected to an ABS electric control unit; and the ABS electric control unit is connected with control units which are respectively used for controlling the air intake quantity of each vehicle wheel braking air chamber. According to the invention, through the installation of the gear rings and the wheel speed sensors at each vehicle wheel of each vehicle axle for the three-channel ABS, the ABS electric control unit accurately controls the braking air chamber of each vehicle axle in braking according to the received wheel speed information from each vehicle wheel, and the control is more accurate, vehicle wheel locking, side slipping and even tail whipping in braking can be prevented effectively, and the vehicle wheel abrasion is reduced obviously; and the ABS provided by the invention is compact in structure, is beneficial to prolonging the service life of the vehicle wheels, and guarantees the vehicle traveling safety.

Description

technical field [0001] The invention relates to an ABS system for automobile braking, in particular to a three-channel ABS system. Background technique [0002] With the rapid development of the automobile industry and the continuous construction of highways, countries all over the world attach great importance to the driving safety of automobiles, especially the requirements for the technical performance of automobile braking systems are getting higher and higher, and the safety of automobiles is becoming more and more serious. valued by people. In order to improve the safety of the car, the most valuable and effective method is to use the ABS system. According to reports, regions such as Europe, the United States and Japan are all developing ABS at a high speed. In 1999, the relevant departments of our country revised and promulgated the mandatory national standard GB 12676-1999 "Automobile Braking System Structure, Performance and Test Methods". Anti-lock Braking Syste...

AI Technical Summary

Problems solved by technology

[0004] The two-channel (4S / 2M) ABS system used on the above-mentioned three-axle semi-trailer, because the center shaft is not equipped with a ring gear and an ABS wheel speed sensor, the wheels are easily locked during braking, causing tire wear and increasing maintenance costs

And there are only two ABS solenoid valves for the three axes, which is lacking in control and the performance of the ABS system is low.

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