A brake pressure control module and control method of a steering axle

Abstract

The invention relates to a brake pressure control module and a control method of a steering axle. The brake pressure control module of a steering axle includes a brake valve body, a brake valve air inlet, a brake valve control port, a brake valve output port, Control units for pressure regulating components, intake and exhaust components, pressure regulating valves, redundant regulating valves and brake valves. The intake and exhaust components are connected to the air inlet of the brake valve and are used to control the on-off of the pressure regulating valve. Connected to the outside world. A pair of pressure regulating assemblies are used to adjust the pressure of a pair of brake air chambers one by one. Redundant regulating valves are used to operate when the intake and exhaust components fail. The brake pressure control module and control method of the steering axle provided by the invention can improve the safety and reliability of the vehicle, reduce the manufacturing cost, and improve the degree of system integration.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a brake pressure control module and a control method of a steering axle. Background technique [0002] In the pneumatic braking system of commercial vehicles, both the steering wheel and the driving wheel will provide the braking force for the whole vehicle when the driver applies the brakes. It also needs to have steering ability to prevent the steering wheel from locking up during emergency braking and causing the vehicle to skid and roll over. [0003] In the existing pneumatic braking system, the steering axle generally adopts a combination of a relay valve and an ABS pressure regulator. The output pressure of the main brake valve adjusts the output pressure of the relay valve to realize the adjustment of the pressure of the brake air chamber. When the vehicle brakes in an emergency, the driver depresses the brake pedal with all his strength, the relay valve is fully op...

AI Technical Summary

Problems solved by technology

[0004] 1. When the relay valve fails, the service brake cannot be implemented, which will have an adverse effect on driving safety;

[0005] 2. Parts are scattered, there is one relay valve and two ABS pressure regulators in the steering axle, and multiple pipe joints are required to connect each component, which reduces the reliability of the system and increases the manufacturing cost, which is not conducive to the system Integrated development

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