发动机高能直接点火控制技术设计

Design of high-energy direct-fire control system in engine

针对发动机电子点火系统的性能要求,以MC9S12DP256微控制器为核心,通过分析点火时序控制方法,设计点火控制程序,结合外围硬件设备,设计了六缸发动机高能直接点火系统。结果表明,利用MC9S12DP256微控制器的逻辑运算能力和定时控制功能,六缸发动机高能直接点火系统获得了精确、可靠的点火时序控制性能,使发动机电子点火系统获得了新发展。

To meet the needs of electronic ignition system in engine,a high-energy direct-fire system for a six-cylinder engine is designed,in which MC9S12DP256 microcontroller is taken as the core.Combined with peripheral hardware device,the high-energy direct ignition system in a six-cylinder engine and ignition control program are designed through analyzing the ignition timing control method.The research result indicates that,based on the logic computing and timing control functions of the MC9S12DP256 microcontroller,the high-energy ignition system of a six-cylinder engine has accurate and reliable performances of the ignition timing control.Therefore,the engine＇s electronic ignition system achieved further development.