Brake system of star wheel train turnover unmanned vehicle and control method of brake system

Abstract

The invention discloses a braking system of a star wheel train turnover unmanned vehicle and a control method of the braking system. The braking system comprises a motor pump, an energy accumulator, a service brake valve, a parking brake valve, a central rotary body, a service brake and a parking brake. The whole machine adopts an electro-hydraulic control braking mode to respectively realize driving braking and parking braking; the brake is mounted at a hub at the tail end of a transmission system, so that the problems of overhigh rotating speed of a motor shaft and insufficient braking force caused by heating of the brake during service braking in the existing scheme are solved, and the service braking safety is ensured; when the whole vehicle is parked, parking braking can be achieved through power failure, an external power source is not needed, and parking safety is guaranteed; an inverse proportion brake valve is adopted, in a certain parking time period, an energy accumulator continuously supplements pressure to a service brake, and the parking safety is further improved; a spring locking type parking brake is adopted, so that the safety of long-time parking is guaranteed; the brake annular central rotary body is innovatively designed, dynamic and static separation is achieved, and the problem that a brake oil pipe is wound when the wheel carrier turns over is solved.

Description

technical field [0001] The present invention relates to the technical field of braking systems for unmanned vehicles, in particular to a braking system for unmanned vehicles with reversible star wheel trains and a control method thereof. Background technique [0002] At present, in the field of unmanned vehicles, the steering system is generally a variety of steering types such as skid steering, independent suspension or non-independent suspension. Regardless of the steering type, the single side of the axle is generally driven by a single tire. The brake is placed in the cavity of the wheel hub and fixedly installed on the non-rotating parts such as the steering knuckle or axle housing. The brake oil pipe that supplies oil to the brake is from After the brake connector is drawn out, it runs along the fixed parts such as the axle and is connected with the brake valve and other components, so as to realize the on-off of the brake. [0003] The present invention is different ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a braking system and its control method for a reversible unmanned vehicle with a star wheel system, both It can solve the problem of brake oil pipe winding when the wheel frame is rotating, and can also solve the problem of insufficient braking force of the existing braking system. It can also realize the separation of driving and parking functions to meet the needs of parking functions.

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