Redundant driving electric brake of airplane and control method for redundant driving electric brake

A technology for driving controllers and electric brakes, which is applied in the direction of control valves, air release valves, brakes, brake components, etc. It can solve the problems of low reliability, improve life and reliability, and ensure safe braking.

Inactive Publication Date: 2012-10-03
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of these electric brakes use redundant technology, and the reliability is not high

Method used

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  • Redundant driving electric brake of airplane and control method for redundant driving electric brake
  • Redundant driving electric brake of airplane and control method for redundant driving electric brake
  • Redundant driving electric brake of airplane and control method for redundant driving electric brake

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Embodiment Construction

[0027] Such as figure 1 As shown, the present invention includes a redundant drive controller 1, a brake actuator 2 and a brake wheel 3. The redundant drive controller 1 receives a given brake pressure signal, and through the control method, drives the double-redundancy brushless DC motor 4 in the brake actuator 2 to work, so that the brake pressure applied on the brake wheel 3 follows the brake Pressure given signal. In the present invention, the control power supply, driving power supply, motor windings, motor Hall sensor, pressure sensor, and power drive unit are backed up.

[0028] Among them, the redundant drive controller 1 includes a brake pressure feedback conditioning unit 5, a brake pressure given receiving unit 6, a DSP unit 7, a CPLD unit 11, an isolation circuit unit 12, a power drive unit 13, a current acquisition unit 8, and an overcurrent protection unit. Auxiliary unit 9 and power system unit 13. The brake pressure setting receiving unit 6 converts the brake pr...

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PUM

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Abstract

The invention discloses a redundant driving electric brake of an airplane and a control method for the redundant driving electric brake. A redundant driving controller part receives a brake pressure given signal and drives a brake actuator to work, so that brake pressure applied to a braked wheel follows the brake pressure given signal. By adopting a redundant technology, easily damaged mechanisms in an airplane brake driving device are subjected to warm backup; under the condition of normal working, the corresponding parts work at half of rated power, so that the service life of the driving device is prolonged, and the reliability of the driving device is improved; when certain redundancy of the driving device fails, a failure can be detected in real time and isolated, so that a fault motor quits a working state, and the driving device runs after being switched to a single-channel mode; and therefore, the reliability of a braking system of an airplane is improved.

Description

Technical field [0001] The invention relates to an electric brake redundant drive device and control method, in particular to an aircraft electric brake redundant drive device and control method. Background technique [0002] The aircraft brake system is a relatively independent functional subsystem on the aircraft. Its role is to carry the aircraft’s static weight, dynamic impact load, and absorb the kinetic energy of the aircraft when it is landing, so as to realize the braking and control of the aircraft’s take-off, landing, taxiing and turning. [0003] At present, the research results of electric brake control system include: the patent "Aircraft Electric Brake Control System Architecture" with publication number CN101117155 and the patent "Reduced Power Mode of Aircraft Full Electric Brake System" with publication number CN101568458 are two technologies researched by Boeing. . The article "Design and Key Technology Research of Aircraft All-electric Brake Driver" published in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/17B60T8/34
Inventor 齐蓉戴志勇郭皓林辉
Owner NORTHWESTERN POLYTECHNICAL UNIV
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