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在一台单缸汽油机上对基于缸内压力波检测的爆震控制系统进行了实验研究。试验表明该系统能准确地检测到爆震信号 ,使发动机工作在轻微爆震状态 ,与通过机体振动频率检测的爆震控制系统相比 ,在不同的试验压缩比下 ,该控制系统均能较好地改善发动机的动力性能和经济性能。
The experiment of a knock control system based on pressure wave detection in a single cylinder gasoline engine was carried out. Experiments show that the system can accurately detect the knocking signal and make the engine work in a slight detonation state. Compared with the knocking control system that detects the vibration frequency of the airframe, the control system can compare with different test compression ratios Good to improve the engine’s dynamic performance and economic performance.