All-electric clamp type braking system

Abstract

The invention discloses an all-electric clamp type brake system which comprises a left all-electric brake machine wheel, a right all-electric brake machine wheel and a brake control box. The brake control box receives and recognizes an instruction of the flight control computer, is connected with the flight control computer through a CAN bus and an RS-485 bus to conduct dual-redundancy communication, controls the combined motors of the left all-electric brake airplane wheel and the right all-electric brake airplane wheel to move according to the instruction of the flight control computer, outputs corresponding brake thrust, achieves required brake torque, achieves static brake and dynamic brake of an airplane, and controls the flight control computer to control the left all-electric brake airplane wheel and the right all-electric brake airplane wheel to move according to the instruction of the flight control computer. And meanwhile, the system BIT can feed back brake thrust, airplane wheel speed and a system state to a flight control computer.

Description

technical field [0001] The invention belongs to the field of brake systems, in particular to an all-electric caliper brake system. Background technique [0002] The aircraft braking system has experienced technical development from mechanical inertial anti-skid braking system, electronic anti-skid braking system, digital anti-skid braking system to digital fly-by-wire anti-skid braking system. There has been no essential change, and mechanical or hydraulic actuation has been used, and a centralized hydraulic pump driven by an engine must provide high-pressure hydraulic power. Facing the requirement of further improving the safety, reliability and maintainability of the system, there are insurmountable technical obstacles and problems especially in the hydraulically actuated braking system equipped in large quantities on small aircraft, as follows: [0003] (1) The working medium of the hydraulic brake system is hydraulic oil, the total weight is heavy, and there are potenti...

AI Technical Summary

Problems solved by technology

[0003] (1) The working medium of the hydraulic brake system is hydraulic oil, the total weight is heavy, and there are potential combustion hazards and hydraulic leakage problems;

[0004] (2) It is difficult to realize real-time self-detection of faults in the mechanical hydraulic part, and the testability and maintainability of the system are not good, which is not conducive to system maintenance guarantee;

[0005] (3) It is difficult to implement redundant design for the mechanical hydraulic part, and the system security is low;

[0006] (4) Any hydraulic piston actuator on the brake device leaks, the brake device must be replaced, disassembled or even completely overhauled, and the system maintenance cost is high

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