Dual-redundancy rotation speed acquisition ignition timing control system and method for aviation piston engine

Abstract

The invention provides a dual-redundancy rotation speed acquisition ignition timing control system and method for an aviation piston engine. The system comprise a shaft head, a flange, a rotation speed sensor, an S-pole magnet, an N-pole magnet, a rotation speed sensor mounting seat, an engine controller, an ignition coil, a high-voltage lead, a high-voltage cap, a spark plug, a cylinder head anda piston. According to the system and the method, the problems that a control system cannot work normally, the ignition timing is abnormal, and the engine fails to work due to the loss of sensor signals in the processes of occurrence and transmission are effectively solved; and the dual-redundancy rotation speed acquisition ignition timing control system and method are low in cost, high in controlaccuracy and fast in responding speed.

Description

technical field [0001] The invention belongs to the field of non-compression ignition control of internal combustion engines, and in particular relates to an ignition timing control system and method for dual-redundant rotational speed acquisition of aviation piston engines. Background technique [0002] An internal combustion engine is a kind of power machinery. It is a heat engine that directly converts the heat energy released into power by burning fuel inside the machine. In a broad sense, an internal combustion engine includes not only reciprocating piston internal combustion engines, rotary piston engines and free pistons. Type engines, including jet engines with rotary impellers, but internal combustion engines generally refer to piston engines. The ignition timing control system of piston engines uses camshaft position sensors, crankshaft position sensors and signal plates on the engine flywheel. Judging the cylinder and judging the top dead center, if the sensor sig...

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Problems solved by technology

[0002] An internal combustion engine is a kind of power machinery. It is a heat engine that directly converts the heat energy released into power by burning fuel inside the machine. In a broad sense, an internal combustion engine includes not only reciprocating piston internal combustion engines, rotary piston engines and free pistons. Type engines, including jet engines with rotary impellers, but internal combustion engines generally refer to piston engines. The ignition timing control system of piston engines uses camshaft position sensors, crankshaft position sensors and signal plates on the engine flywheel. Judging the cylinder and judging the top dead center, if the sensor signal is lost during the generation and transmission process, the control system will not work normally, which will lead to abnormal ignition timing and affect the engine work

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