在分析了点火提前的机械控制和电子控制两种方法的特点以及电子控制方法中的自适应控制的研究现状的基础上，提出了在常规机械控制的汽油机上仅利用分电器输出的点火信号进行点火提前自适应控制的理论和方法，并进行了该理论方法可行性实验研究。试验研究结果表明：所提出的控制理论和方法是切实可行和有效的，点火提前自适应控制使发动机的性能得到提高。 Based on the analysis of the characteristics of both mechanical control and electronic control before ignition and the research status of adaptive control in electronic control methods, it is proposed to use only the ignition signal output from the distributor in a conventional mechanical control gasoline engine Ignition early adaptive control theory and methods, and the feasibility of the theoretical method of experimental study. The experimental results show that the proposed control theory and method are practical and effective, and the adaptive control of ignition advance improves the performance of the engine.