环境因素对增压汽油机性能影响研究和修正计算  

Research on the Influence of Environmental Factors on Turbocharged Gasoline Engine and Correction Calculations

作　　者：贺礼 汪洋 田德辛 牛福军 朱允 孙建军 HE Li;WANG Yang;TIAN Dexin;NIU Fujun;ZHU Yun;SUN Jianjun(Ningbo Geely Royal Engine Components Co.,Ltd.,Ningbo,Zhejiang,315336,China;Zhejiang Fangyuan Test Group Co.,Ltd.)

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315336 [2]浙江方圆检测集团股份有限公司机械轻工部

出　　处：《小型内燃机与车辆技术》2023年第5期26-28,43,共4页Small Internal Combustion Engine and Vehicle Technique

摘　　要：通过分析一台缸内直喷增压汽油机在相同测试设备条件下不同季节的性能表现,探索环境因素与发动机性能表现的内在联系,并采用环境修正因子对发动机性能进行修正。试验结果表明,经过环境修正后的转矩相比修正前,最大转矩偏差从14 N·m下降到9.1 N·m,转矩标准差从3.6~6 N·m下降到1.5~3.6 N·m,下降约40%。采用环境修正对于控制发动机转矩性能差异有比较明显效果,能够在不同测试环境下客观评价发动机的性能指标,对于大批量产品性能一致性评价具有指导意义。The performance of a direct-injection turbocharged gasoline engine is analyzed under the same test equipment conditions in different seasons to explore the internal relationship between environmental factors and engine performance.The test results show that,compared with the torque before the correction,the maximum torque deviation drops from 14 N·m to 9.1 N·m,and the torque standard deviation drops from 3.6 N·m~6 N·m to 1.5 N·m~3.6 N·m,a drop of about 40%.The use of environmental corrections has an obvious,positive effect on evaluating the difference in engine torque performance under different test environments,which is of guiding significance for the performance consistency evaluation of large-scale products.

关 键 词：汽油发动机 增压 性能 环境因素 修正转矩 

分 类 号：TK417.124[动力工程及工程热物理—动力机械及工程]