结合发动机爆震控制 ,进行了爆震传感器幅频特性测量与发动机爆震信号的实时测量 ;对爆震信号进行了时域和频域分析 ;根据频谱分析结果 ,进行了爆震临界电平计算 ;同时对发动机发生爆震时的性能进行了分析 ,为爆震控制提供了依据。介绍了试验系统、试验方法、试验结果、数据处理方法以及所得结论 Combining with the engine knock control, the amplitude-frequency characteristic measurement of the knock sensor and the real-time measurement of the engine knocking signal were carried out. The knocking signal was analyzed in time and frequency domain. According to the spectrum analysis results, the knocking threshold level At the same time, the performance of engine knocking was analyzed, which provided the basis for knocking control. Introduced the test system, test methods, test results, data processing methods and the conclusions obtained