基于MotoTron平台的二冲程煤油发动机控制器开发

In order to realize the rapid development and strategy verification of the two-stroke kerosene aviation engine controller, in combination with the rich software and hardware resources of the MotoTron rapid control prototype development platform, based on the system design requirements of air-assisted direct injection and dual-spark plug ignition, an engine controller for controlling the four-cylinder engine using an eight-cylinder program was developed. The design method of control software based on the rapid control prototype software architecture was analyzed, and the development software, MotoHawk was used to configure the underlying program and build the engine control system. Then, in combination with Matlab/Simulink, the upper control strategy was established to completely develop the whole control system. The cold start bench tests were carried out, during which the speed of the engine was stable, the adjustment processes of the ignition advanced angle, the injection advance angle and the injection pulse width were in accordance with the control strategy. And the air-fuel ratio control was stable, with the error within 10%. The smooth transitions of the engine to normal conditions verified the cold start control strategy. And the fundamental functions of the controller had been realized, showing that the controller design could meet the requirements.