Control method of piston-type aero-engine

Abstract

The invention provides a control method of an aero-engine. A sensing system is divided into a main sensing module and an auxiliary sensing module, wherein the main sensing module influences basic operation of the engine, and the auxiliary sensing module only plays a role in adjustment. Two sets of main sensing modules are arranged to be used as main / backup modules for switching, and signals sensedby the auxiliary sensing modules in an emergency state are directly ignored and a preset default value is adopted, so that the engine can be ensured to run in a normal range, and the aircraft is ensured to fly in a safe state. From the aspects of structure and assembly, a second set of the auxiliary sensing module is omitted, the structure is simpler, and assembly is easy to achieve; and the riskthat in the prior art, the main sensor and the standby sensor at the same position are damaged at the same time and cannot be used is reduced to a great extent.

Description

technical field [0001] The invention relates to the field of aviation aircraft, in particular to a control method of a piston type aviation engine. Background technique [0002] The engine controller is the control core of the engine management system. Its basic function is to collect sensor signals based on the engine speed and load. It is always in the best running state under working conditions and external working conditions. [0003] In the field of aviation, flight safety is the top priority, and aero-engines are the core of flight power, and the operating status of aero-engines is very important. In the prior art, in order to prevent abnormal operation of the control engine caused by the abnormality of the current sensor, two sets of the same sensing system are usually set up, and when the operating sensing system is abnormal, the control system switches to another sensing system. However, this approach also has some risks. If two sets of identical sensor systems a...

AI Technical Summary

Problems solved by technology

However, this approach also has some risks

If two sets of identical sensor systems are configured, there are many types and quantities of sensors. If two sensors are installed at each position, the difficulty of setting will increase; and if the current sensor is abnormal due to external force, even if you switch to Another set of sensor systems for backup, another sensor at the same position is very likely to cause the same damage and abnormality, which will cause the two sets of sensor systems to be unusable

Images