可变凸轮相位器响应特性试验研究  

Experiment on Response Characteristics of Variable Cam Phaser

作　　者：张力[1] 谢博强[1] 江亮[1] 袁志强 付秋波 王孟[1] 

机构地区：[1]重庆大学机械工程学院,重庆400044 [2]重庆长安汽车股份有限公司汽车工程研究院,重庆401120

出　　处：《农业机械学报》2012年第11期36-40,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：重庆市科技攻关重点项目(CSTC2008AA6024)

摘　　要：为研究各运行参数下可变凸轮相位器(VCP)的响应特性,构建了试验测试平台,提出了计算凸轮相位器动态响应时间的方法。该平台可测试发动机转速、润滑油温度和压力等运行参数下,相位变化最大转角时提前、滞后方向的响应时间。试验结果表明:相位提前方向调节响应速度小于滞后方向;发动机转速对相位器响应速度影响不明显;随着润滑油温度的升高,响应速度加快,但温度大于70℃时,响应变化的幅度减小;当润滑油压力增加,响应速度增大,且低压(0.4 MPa以下)时影响较大。In order to study the response characteristics of variable cam phaser （VCP） under each operating parameter, a test bench was built up, and the methods for calculating the dynamic response time of VCP were put forward. The response time of the maximal VCP advance and retard position, under operating parameter include engine speed, hydraulic oil＇s pressure and temperature, can be measured. The experimental results indicate that response speed under the advance direction regulating of VCP is less than retard direction. Engine speed doesn＇ t have much prominent effect on VCP response speed. As the increase of oil＇ s temperature, the response speed become faster, but the rate of change is decreasing when the temperature higher than 70℃. The response speed augments as the oil＇s pressure increases, especially in low pressure （lower than 0.4 MPa）.

关 键 词：汽油机 可变凸轮相位器 响应速度 试验台 

分 类 号：TK413.4[动力工程及工程热物理—动力机械及工程]