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Electromechanical brake driver of aircraft

A driver, electromechanical technology, applied in the direction of brakes, vehicle components, brake transmissions, etc., can solve the problems of heavy weight, complicated installation and disassembly, hydraulic oil leakage and combustion, etc., to reduce complexity, improve reliability, and enhance reliability. Effect

Inactive Publication Date: 2013-02-13
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the brake pressure adjustment in the brake system is realized by hydraulic components such as electro-hydraulic pressure servo valves and solenoid valves, but the mass of the electro-hydraulic pressure servo valve, solenoid valves and hydraulic pipelines is heavy and the installation and disassembly are complicated. The payload and maintainability of the aircraft are affected, and the faults of servo valves and solenoid valves are not easy to monitor and there are risks such as hydraulic oil leakage and combustion, which affects the safety of the aircraft.

Method used

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  • Electromechanical brake driver of aircraft
  • Electromechanical brake driver of aircraft
  • Electromechanical brake driver of aircraft

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Embodiment Construction

[0016] The invention is composed of a power supply circuit, a control circuit and a drive circuit. It is characterized in that the brake driver completely replaces the electro-hydraulic pressure servo valve and solenoid valve in the hydraulic brake system and changes the brake actuation mode.

[0017] The power supply part of the brake driver is composed of a power filter and a DC-DC power module, which provides 15V and 5V power supplies for the control board of the brake driver, the sensor on the wheel of the brake main engine, and the drive circuit, and provides 15V working voltage.

[0018] The control circuit is mainly composed of the control chip DSP minimum system and CPLD devices. The main function of the DSP is to receive the command braking force signal and the force feedback signal of the force sensor. After the DSP synthesizes these two signals, it passes the classic PI control algorithm and outputs the It is used to control the PWM signal of the brushless DC motor ...

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Abstract

The invention provides an electromechanical brake driver of an aircraft. A power supply part supplies power to a force sensor, a position sensor, a control circuit and a driving circuit in an isolated way; and the control circuit receives an instruction brake force signal, a force feedback signal of the force sensor and a motor rotor position signal transmitted from the position sensor and outputs 6-path PWM signals to the driving circuit, so as to achieve substantial rotation and over-current protection control of a brushless direct current motor. The electromechanical brake driver of the aircraft, provided by the invention, has the advantages that electromagnetic compatibility of the brake driver is enhanced, mature principle and high technical maturity are obtained and the reliability of the brake driver is enhanced.

Description

technical field [0001] The invention relates to a brake driver, in particular to a brake driver for realizing electric brakes. Background technique [0002] Modern aircraft mostly use digital fly-by-wire hydraulically actuated brake systems. The brake pressure actuator components in a typical aircraft brake system are composed of electro-hydraulic pressure servo valves and solenoid valves. The basic working principle is: the driver manipulates the brake pedal, and the anti-skid brake control box in the brake system outputs a control signal to the solenoid valve to open the oil inlet passage of the electro-hydraulic pressure servo valve according to the instruction and the speed sensor signal, and outputs The brake anti-skid current is supplied to the electro-hydraulic pressure servo valve to adjust the brake pressure output to the brake wheel to generate an appropriate braking torque to realize the braking and anti-skid of the aircraft. [0003] In the prior art, the brake ...

Claims

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Application Information

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IPC IPC(8): B60T13/74
Inventor 刘劲松周世民杨金日赵宁宇刘长伟
Owner XIAN AVIATION BRAKE TECH
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