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对汽油喷射发动机电子控制系统进行了剖析研究，阐明了电控系统的组成、单片机控制单元的电路特点、控制原理和控制软件。电子控制使汽车发动机的动力性能、经济性和排放污染得到了很大的改善。
The electronic control system of gasoline injection engine is analyzed and studied. The composition of the electronic control system, the circuit characteristics, the control principle and the control software of the MCU control unit are illustrated. Electronic control has greatly improved the dynamic performance, economy and emissions of automotive engines.