Double-closed-loop control system for hydraulic servo drive of airplane brake system

A technology of double closed-loop control and braking system, which is applied to aircraft braking arrangement, brakes, control mechanism, etc., can solve the problems of valve current dead zone, inability to obtain valve current, and inability to adjust current, and achieve the effect of improving control accuracy.

Pending Publication Date: 2022-01-04
CENT SOUTH UNIV
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  • Summary
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  • Application Information

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Problems solved by technology

The characteristic of this type of drive control system is that the circuit structure is simple, and there are two main disadvantages. One is that the output valve current has a dead zone, that is, the current cannot be adjusted when it is le

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Example Embodiment

[0037] The embodiment of the present invention will be described in detail below, and the present embodiment is based on the technical solution of the present invention, and a detailed embodiment and a specific operation process are given, and the technical solutions of the present invention will be further explained.

[0038] This embodiment provides a double closed loop control system for hydraulic servo drive of aircraft brake system, reference figure 1 As shown, including voltage controller, current controller, digital-to-analog converter, constant current output module, and feedback conditioning module; two input terminals of the voltage controller respectively correspond to the first output of the brake control cartridge and feedback conditioning module, respectively. Connection, the output terminal is connected to the first input of the current controller via the digital mode converter; the second input of the current controller also is connected to the second output end of th

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Abstract

The invention discloses a double-closed-loop control system for hydraulic servo drive of an aircraft brake system. The double-closed-loop control system comprises a voltage controller, a current controller, a digital-to-analog converter, a constant-current output module and a feedback conditioning module. The two input ends of the voltage controller are connected with the brake control box and the first output end of the feedback conditioning module respectively, and the output end of the voltage controller is connected to the first input end of the current controller through the digital-to-analog converter. The second input end of the current controller is also connected with the second output end of the feedback conditioning module, and the output end of the current controller is connected to the input end of the constant current output module; and the output end of the constant current output module is connected to the servo valve; and the acquisition input end of the feedback conditioning module is connected to the current acquisition end of the constant current output module. According to the method, the hydraulic servo drive of the aircraft brake system is controlled quickly and accurately, and the robustness is good.

Description

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Claims

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Application Information

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Owner CENT SOUTH UNIV
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