Dual-redundancy aircraft fuel remaining amount measuring system

Abstract

The invention provides a dual-redundancy aircraft fuel remaining amount measuring system. The dual-redundancy aircraft fuel remaining amount measuring system comprises an electromechanical managementcomputer (1), a fuel computer (2), a left oil way flow sensor (3), a right oil way flow sensor (4), a comprehensive display (5), a left engine fuel flow meter (6), a right engine fuel flow meter (7) and an electronic control device (8), the fuel computer (2) collects and calculates the numerical values of the left oil path flow sensor (3) and the right oil path flow sensor (4), and obtains the aircraft fuel remaining amount value through comprehensive calculation; when the loop breaks down, subsequent airplane fuel remaining amount values are obtained through comprehensive calculation of the electromechanical management computer (1) after the numerical values measured by the left engine fuel flow meter (6) and the right engine fuel flow meter (7) are subjected to signal conversion of the electronic control device (8). The system is correct in principle and simple in composition, and the safety redundancy of the system is effectively improved.

Description

technical field [0001] The invention belongs to the field of aviation machinery control, in particular to a dual-redundancy aircraft fuel residual measurement system. Background technique [0002] The fuel in the aircraft fuel tank is directly supplied to the engine through the fuel supply pipeline, and each fuel supply pipeline is equipped with a flow sensor to receive and transmit the fuel consumption of the engine. The set value calculates the remaining oil quantity of the whole machine and sends it to the electromechanical management computer for display on the multi-function display. [0003] If there is a flow sensor failure, a fuel computer failure, or a communication failure between the fuel computer and the electromechanical management computer, the electromechanical management computer cannot receive and display the remaining fuel volume output by the fuel computer, resulting in an error in the display of the remaining fuel volume in the cockpit, and eventually af...

AI Technical Summary

Problems solved by technology

[0003] If there is a flow sensor failure, a fuel computer failure, or a communication failure between the fuel computer and the electromechanical management computer, the electromechanical management computer cannot receive and display the remaining fuel volume output by the fuel computer, resulting in an error in the display of the remaining fuel volume in the cockpit, and eventually affect the aircraft's mission

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