汽油机爆震实验测试与模拟优化

o validate the rationality and validity of the single cylinder gasoline engine, engine bench test was conducted. Knock simulation model based on two-zone model was established by embedding the knock prediction model. In the gasoline engine knock experimental test, knock testing investigation was applied with VDO recognition algorithm，the calculation results show that there is a good agreement between the experimental and numerical results, which verify the reliability of presented knock model. A new strategy to Optimize the ignition curve was presented by considering the knock intensity and engine performance，the results indicate that knock of the new two model are much better than the original one，and also show that knock simulation model and new optimization scheme have high engineering values.