Composite electronic control device for purifying tail gas of vehicles, including the engine exhaust gas recirculation EGR control subsystem and air injection electronic control subsystem, EGR control subsystem includes at least one connection bypass pipe exhaust pipe and the inlet pipe of the engine; air injection electronic control system includes at least one compressed air pump and air compressed air inlet connection the pump and exhaust pipe, EGR control subsystem, a high-frequency electromagnetic valve is provided with at least a bypass pipe, the bypass pipe and the inlet pipe of the engine connection point is located in the solar term door after spraying air; electronic control subsystem, a high-frequency electromagnetic valve is provided with at least one air inlet pipe, air inlet pipe the exhaust pipe and the bypass pipe and the exhaust connection point is located in the EGR sub control system pipe (3) before the connection point. The invention uses ECU to control the high frequency electromagnetic valve to replace the continuous regulating flow valve in the traditional scheme, and can greatly improve the mixing efficiency, and simultaneously reduce the emission of vehicles NOx, CO and HC.
【技术实现步骤摘要】
【技术保护点】
１．一种适用于汽油机或柴油机的车辆尾气净化复合电子控制装置，它包括两套电子控制子系统，其中一套是发动机废气再循环ＥＧＲ电控子系统，另一套是空气喷射电子控制子系统，所述ＥＧＲ电控子系统包括至少一条连接排气管（３）与发动机进气管（２）的旁路管道；所述空气喷射子系统包括空气压缩泵（１２）和至少一条连接空气压缩泵（１２）与排气管（３）的空气进气管道（１５），其特征是，在ＥＧＲ电控子系统中，每条旁路管道内至少设有一个高频电磁阀（７），所有高频电磁阀（７）的控制端与电子控制单元（４）输出端相连，电子控制单元（４）的输入端连接发动机转速信号和节气门位置信号，所述旁路管道（１６）与发动机进气管（２）的连接点位于节气门（１１）之后；在空气喷射子系统中，每条空气进气管道（１５）中至少设有一个高频电磁阀（１４），所有高频电磁阀（１４）的控制端与电子控制单元（６）的输出端相连，电子控制单元（６）的输入端连接发动机转速信号和节气门位置信号，所述空气进气管道（１５）与排气管（３）的连接点位于ＥＧＲ电控子系统的旁路管道与排气管（３）的连接点之前。
【技术特征摘要】
【专利技术属性】
技术研发人员：陈国华，彭立，
申请(专利权)人：武汉格林威科技发展有限公司，
类型：发明
国别省市：83
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