Micro-miniature electric fuel pump post-pumping pulsating pressure monitoring system and monitoring method

Abstract

The invention discloses a microminiature electric fuel pump post-pumping pressure monitoring system and method, and the system comprises a microminiature piezoelectric pressure sensor which is used for transmitting a pressure signal in a fuel flow channel into a charge signal; the sensor signal conditioning module is used for conditioning the charge signal transmitted and output by the pressure sensor to enable the charge signal to accord with the analog signal sampling range of the embedded minimum system; the embedded minimum system is used for providing a hardware platform for the operation of the high-speed pressure monitoring and processing software module and the post-pumping pulsating pressure monitoring algorithm module; the communication signal conditioning module is used for outputting a measurement result to an electric fuel pump controller through a field bus; the high-speed pressure monitoring and processing software module is used for performing high-speed sampling and data processing on the voltage signal output by the sensor signal conditioning module; and the post-pumping pulsating pressure monitoring algorithm module is used for calculating post-pumping pulsating pressure in real time.

Description

technical field [0001] The invention relates to the technical field of parameter measurement of aviation electric fuel pumps, in particular to a monitoring system and a monitoring method for post-pulse pressure of a miniature electric fuel pump. Background technique [0002] The development of science and technology, the energy revolution, and the demand for high-power electricity have pushed the multi-electric aircraft out of the historical stage, and its development marks that the aviation industry has entered a new era. The multi-electric aeroengine is one of the core technologies of the multi-electric aircraft, which uses an electric drive system to replace the secondary power system driven by hydraulic, pneumatic, and mechanical energy. The multi-electric engine has many advantages such as simplified structure, high power-to-weight ratio, high maintainability and reliability, and has become an important research direction of aviation propulsion technology. [0003] The...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a monitoring system and method for post-pump pulsation pressure of a miniature electric fuel pump, which is used to solve the problem of unmonitored post-pump pressure pulsation in the existing aviation electric fuel pump system or unable to monitor post-pump pressure pulsation at high speeds. monitoring issues

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