CAJ | 학술논문

对CA6SF2-23NE3和CY4102-N3C两款CNG发动机进行稳态匹配试验，在完成了点火提前角和喷气时间标定后，该两种发动机性能指标均达到使用要求，证实了控制策略和元件选配对于类似CNG机型的通用性。针对CA6SF2-23NE3机型，对供气、冷却、点火正时部分提出了部件替换方案，降低了整机成本，并根据使用要求将最大转矩转速调整至期望位置。对CY4102-N3C机型，根据试验数据建立并校验了数值计算模型，进而对配气相位进行了优化。
대CA6SF2-23NE3화CY4102-N3C량관CNG발동궤진행은태필배시험，재완성료점화제전각화분기시간표정후，해량충발동궤성능지표균체도사용요구，증실료공제책략화원건선배대우유사CNG궤형적통용성。침대CA6SF2-23NE3궤형，대공기、냉각、점화정시부분제출료부건체환방안，강저료정궤성본，병근거사용요구장최대전구전속조정지기망위치。대CY4102-N3C궤형，근거시험수거건립병교험료수치계산모형，진이대배기상위진행료우화。
The steady state matching test on both CA6SF2-23NE3 and CY4102-N3C CNG engines are con-ducted. After the calibration of their ignition timing and gas injection duration,the performance indicators of two en-gines meet the requirements, verifying the commonality of control strategy and component selection for similar CNG engines. For CA6SF2-23NE3, some replacement schemes for fuel supply,cooling and ignition timing are put forward to reduce engine costs, with the peak torque speed adjusted to desired point. For CY4102-N3C, a numerical simu-lation model is set up and verified according to test data, with its valve timing optimized.