DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system

A brake system and anti-skid brake technology, which is applied to aircraft brake arrangements, brake regulators, etc., can solve problems such as poor control accuracy, and achieve the effects of reducing the number of boards, high reliability, and reducing the number of circuits

Active Publication Date: 2014-03-19
XIAN AVIATION BRAKE TECH
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiency of poor control accuracy of the existing DSP-based aircraft anti-skid b

Method used

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  • DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system
  • DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system
  • DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of aircraft brake system

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Embodiment Construction

[0014] refer to Figure 2-4 . The antiskid brake control box of the aircraft braking system based on DSP+FPGA in the present invention includes a power supply board, a control board and a monitoring board. The power supply board provides +15V, +5V and -15 operating voltages for the control board and monitoring board, and provides 2.5V, 1.8V and 3.3V operating voltages for the FPGA and DSP cores.

[0015] The monitoring board is composed of the minimum system of the control chip DSP and the FPGA device. The main function of the FPGA is to process the collected signals and transmit them to the DSP. These signals include command sensor signals, wheel speed sensor fault signals, valve fault signals, power supply fault signals, start The landing signal, wheel load signal, shut-off valve fault signal, automatic brake signal, and automatic brake coil fault signal communicate with the control board through the RS422 transceiver module to obtain pressure signals, speed and frequency s...

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Abstract

The invention discloses a DSP+FPGA (digital signal processor and field programmable gate array)-based anti-skid brake control box of an aircraft brake system, and aims at solving the technical problem that a conventional DSP-based anti-skid brake controller of an aircraft has the poor control accuracy. The technical scheme is that the control box comprises a power panel, a control panel and a monitoring panel, wherein the control panel and the monitoring panel adopt high-performance DSP+FPGA as a control core, and the complex control operation capacity of the DSP and the high-efficiency data processing capacity of the FPGA are combined, so that the number of discrete elements in the panels is reduced, the number of the panels in the brake control box is reduced, the system operation speed is increased, and the control accuracy is high. The integration and the modularization of the anti-skid brake control system of the aircraft are realized, and the reliability of the system is relatively high. According to the anti-skid brake control box of the aircraft brake system, the complex control operation capacity of the DSP and the high-efficiency data processing capacity of the FPGA are combined, so that the system operation speed is increased and the control accuracy is improved; the control accuracy is improved from 1 percent in the prior art to 0.5 percent.

Description

technical field [0001] The invention relates to an anti-skid brake control box for an aircraft braking system, in particular to an anti-skid brake control box for an aircraft braking system based on DSP+FPGA. Background technique [0002] The wheel brake system is the key actuator in the aircraft and the core system related to the safety of the whole aircraft, so the performance and reliability of the brake control system are very important. It is very important to improve the control accuracy of the complex braking system by perfecting its functions. [0003] refer to figure 1 . The document "Research and Design of Aircraft Anti-skid Brake Controller Based on DSP" Northwestern Polytechnical University Master's Degree Thesis 2006" discloses a DSP-based aircraft anti-skid brake controller. Its control box uses a single-chip microcomputer or DSP as the control core. Its advantage lies in changing the shortcomings of the original analog control box, which are large in size a...

Claims

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Application Information

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IPC IPC(8): B64C25/46
Inventor 王波孙倩王红玲周宏博谷鸣刘文亮孙周
Owner XIAN AVIATION BRAKE TECH
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