本文介绍了一种单片机控制的多点电控汽油喷射系统。该系统不仅具备适应发动机各种工况变化的燃油控制功能,具有明显的降低排气污染、节油和提高动力性的效果,还能对系统的故障进行自我诊断。本文详细介绍了系统的工作原理、结构、软硬件设计及脉谱图的测取方法,并给出了试验结果。 This article describes a single-chip control of multi-point electric gasoline injection system. The system not only has the fuel control function to adapt to various engine operating conditions, but also has the obvious effect of reducing exhaust pollution, saving fuel and improving the power, and can also self-diagnose the system failure. This paper introduces the system working principle, structure, hardware and software design and the method of measuring the spectrum, and gives the test results.