CAJ | 학술논문

介绍了发动机控制中凸轮与曲轴盘信号的获取方法。采用合理性判别机制，把发动机信号盘的齿型系数固化到RO M中，在发动机运行过程中，采集凸轮齿、曲轴齿单齿齿宽时间，通过相邻齿之间的比值对正常齿、缺齿、多齿信号之外的高频干扰信号、丢齿信号问题进行滤波处理。在发动机工作转速范围建立曲轴信号、凸轮信号各个齿型的相邻齿齿宽比例系数MAP图，依照最大转速变化率，通过理论分析计算出单齿齿宽比例的上、下边界；同时在发动机台架上，对多转速工况下的齿型宽度信号进行测试记录，修正齿宽比例的合理性系数边界值，得出凸轮轴正常齿、多齿以及曲轴正常齿、缺齿的合理性系数，完成发动机控制同步信号的可靠获取。
개소료발동궤공제중철륜여곡축반신호적획취방법。채용합이성판별궤제，파발동궤신호반적치형계수고화도RO M중，재발동궤운행과정중，채집철륜치、곡축치단치치관시간，통과상린치지간적비치대정상치、결치、다치신호지외적고빈간우신호、주치신호문제진행려파처리。재발동궤공작전속범위건립곡축신호、철륜신호각개치형적상린치치관비례계수MAP도，의조최대전속변화솔，통과이론분석계산출단치치관비례적상、하변계；동시재발동궤태가상，대다전속공황하적치형관도신호진행측시기록，수정치관비례적합이성계수변계치，득출철륜축정상치、다치이급곡축정상치、결치적합이성계수，완성발동궤공제동보신호적가고획취。
The collection method of camshaft and crankshaft signals was introduced .With the reasonable discrimination mech‐anism ,the coefficient of tooth form for signal disc was written into ROM .The duration of single camshaft tooth and single crankshaft tooth was colleted during the engine operation .According to the ratio of adjacent teeth ,the high‐frequency interfer‐ence signal and lost‐tooth signal except normal tooth ,missing tooth and multi‐tooth were filtered .The tooth width ratio MAP of adjacent tooth for each tooth form of camshaft and crankshaft signals was built during the whole range of engine speed .Ac‐cording to the change rate of maximum speed ,the upper and lower borders of tooth width ratio for single tooth were calculated by the theoretical analysis .The signals of tooth width in different speed conditions were tested and recorded ,the boundary val‐ue of reasonable coefficient for tooth width ratio was corrected ,the reasonable coefficients for the normal tooth and multi‐tooth of camshaft and the normal tooth and missing tooth of crankshaft were acquired and finally the synchronous control signals were reliably collected .