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Dual-redundancy steering engine switching instruction interface circuit and instruction switching method

A technology for switching commands and interface circuits, applied in computer control, instruments, simulators, etc., can solve the problems of poor reliability and versatility, large size of the switching command interface circuit of the main and standby channels of dual redundant servos, etc. Interference ability, high reliability, and the effect of improving reliability

Active Publication Date: 2022-01-04
XIAN MICROELECTRONICS TECH INST
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  • Description
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Problems solved by technology

[0004] In order to solve the above-mentioned defects existing in the prior art, the purpose of the present invention is to solve the problems of large volume, poor reliability and poor versatility of the main-standby channel switching command interface circuit of the dual-redundancy steering gear, and provide a new type of main-standby channel switching command interface Implementation method of the circuit

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  • Dual-redundancy steering engine switching instruction interface circuit and instruction switching method
  • Dual-redundancy steering engine switching instruction interface circuit and instruction switching method
  • Dual-redundancy steering engine switching instruction interface circuit and instruction switching method

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0036] see figure 1 , the dual-redundancy steering gear switching instruction interface circuit proposed by the present invention is used in a dual-redundancy steering gear system, and is respectively set in the 1# steering gear controller and the 2# steering gear controller in the dual-redundancy steering gear system Switch the command interface circuit to realize the position closed-loop control function of the damper of the dual-redundancy steering gear system and the front wheel steering gear. Under normal circumstances, the 1# steering gear controller controls the main channel of the damper steering gear to work, the 2# steering gear controller controls the main channel of the front ...

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Abstract

The invention discloses a dual-redundancy steering engine switching instruction interface circuit and an instruction switching method. Thedual-redundancy steering engine switching instruction interface circuit is characterized in that two chips of the circuit are respectively provided with an instruction control signal pin and a differential signal pin, the switching instruction differential output pins of the two chips are connected in parallel so as to achieve a redundant output function of outputting a switching instruction QHOUT1+ / -, the switching instruction output pin of the chip D1 is connected with an input pin so as to achieve a switching instruction read-back function, and the differential input pin of the chip D2 is connected with an input switching instruction QHIN2+ / -. According to the invention, through the self-checking configuration and switching configuration method of the switching instruction interface circuit, the functions of main channel software switching, fault switching instruction signal sending and standby channel switching instruction signal receiving are achieved, and the requirements for high reliability and high generalization of the dual-redundancy steering engine switching instruction interface circuit are met.

Description

technical field [0001] The invention belongs to the technical field of electric servo control, and in particular relates to an instruction interface circuit and an instruction switching method for switching main and standby channels of a dual-redundancy steering gear. Background technique [0002] The dual-redundancy steering gear switching command interface circuit mainly realizes the main channel software switching, the sending of the fault switching command signal, and the receiving function of the standby channel switching command signal. The existing steering gear switching command sending interface circuit mostly uses the relay output switch value as the switching command output signal; the switching command receiving interface circuit mostly uses an optocoupler device to receive the switching command input signal. Due to the use of relays in the existing switching command interface circuit, there is a problem of large volume; the parameters of optocoupler devices are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 赵亚妮马联强窦森
Owner XIAN MICROELECTRONICS TECH INST
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