Circuit for simulating LVDT dynamic model of aero-engine fuel regulator position sensor

A technology for fuel regulators and aero-engines, which is applied in control/regulation systems, instruments, electrical testing/monitoring, etc. It can solve problems such as position sensor LVDT signal conditioning, acquisition and calculation circuit simulation tests, and achieve comprehensive test coverage.

Pending Publication Date: 2021-02-23
XIAN AERO ENGINE CONTROLS
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention: to provide a circuit for simulating the LVDT dynamic model of the position sensor of the aero-engine fuel regulator, to solve the technical problem that the prior art cannot carry out the simulation test of the position sensor LVDT signal conditioning acquisition operation circuit in the aero-engine control system

Method used

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  • Circuit for simulating LVDT dynamic model of aero-engine fuel regulator position sensor
  • Circuit for simulating LVDT dynamic model of aero-engine fuel regulator position sensor
  • Circuit for simulating LVDT dynamic model of aero-engine fuel regulator position sensor

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Embodiment Construction

[0016] Such as figure 1 As shown, in the aero engine control system, the fuel regulator position sensor LVDT receives the excitation signal from the electronic controller of the engine control system, such as 3V, 3KHz, after the electronic controller controls the movement of the fuel valve of the fuel regulator, the fuel valve drives the position sensor LVDT movement, the position sensor dynamically outputs VA and VB electrical signals that follow the position change, such as 0~2V, 3KHz.

[0017] The circuit of the position sensor LVDT dynamic model of the present invention is as attached figure 2 shown. When working, receive the excitation signal from the electronic controller of the engine control system, for example 3V, 3KHz, receive the position electrical signal from the model machine of the fuel regulator, for example: 0~5V, the analog position sensor dynamically outputs VA, VB following the position change Electrical signal, for example: 0~2V 3KHz.

[0018] The pres...

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Abstract

The invention possibly relates to the fields of aero-engine control systems, loop tests, circuits and the like, in particular to a circuit for simulating an LVDT dynamic model of an aero-engine fuel regulator position sensor. The circuit comprises a sum value fixing circuit, an amplification adjusting circuit and a multiplier. The LVDT position signal is processed by the sum value fixing circuit to output a signal V1 and a signal V2, the signal V1 and the signal V2 are respectively corrected by the amplification adjusting circuit to simulate and output normalized VA and VB electric signal effective values, and the normalized VA and VB electric signal effective values are multiplied by an excitation signal sent by the controller through the multiplier to obtain VA and VB electric signals with the same phase as the excitation signal. According to the invention, the technical problem is solved that a simulation test of an LVDT signal conditioning acquisition operational circuit of the position sensor in an aero-engine control system cannot be carried out in the prior art. And thus, the comprehensiveness of technical detection and test of the electronic controller of the aero-engine control system in the loop simulation test is improved.

Description

technical field [0001] The invention may relate to the fields of aero-engine control systems, loop tests, circuits, etc., and in particular relates to a circuit for simulating the LVDT dynamic model of the position sensor of an aero-engine fuel regulator. Background technique [0002] At present, during the loop test of the engine control system, during the simulation test of the closed-loop control of the position of the fuel regulator, the position of the fuel regulator is calculated by the model machine, and the data is sent to the electronic controller through communication, and the electronic controller directly transfers the position data as location data collection. Compared with the actual working state of the engine control system, the conditioning and acquisition operation circuit of the position sensor LVDT signal in the electronic controller is bypassed. Therefore, the control system has the problem of incomplete coverage of electronic controller technology dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 杨晓强王在良薛国杰安理会徐璐
Owner XIAN AERO ENGINE CONTROLS
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