一种电控喷油器动态时间参数测试系统研究  

Study on Measurement System of Dynamic Response Time for an EFI

作　　者：郭辉[1,2] 张振东[1] 程强[1] 孙跃东[1] 

机构地区：[1]上海理工大学汽车工程研究所,上海200093 [2]上海工程技术大学汽车工程学院,上海201620

出　　处：《计量学报》2012年第1期43-46,共4页Acta Metrologica Sinica

基　　金：高等学校博士学科点专项科研基金（200802520001）;上海市科委科技攻关计划（10230501500）;上海市高校选拔培养优秀青年教师科研专项基金（GJ1308005）;上海市研究生创新基金（JWCXSL1001）

摘　　要：对电控喷油器动态开启与关闭过程进行了研究，详细分析了其动态工作过程，提出一种基于电控喷油器线圈电流变化测试其动态响应时间的测试方法。以C8051F310单片机为处理器，设计了喷油器开启与关闭响应时间的测试电路，开发了成本低、测试便捷、精度高的测试系统。测试结果表明，喷油器的开启与关闭的响应时间测量误差分别为0．9％和1．14％，满足喷油器相关研究工作的测试要求。According to the dynamic operation process of the electronic fuel injector （EFI）, the coil current of the EFI can bitterly reflect its dynamic response time, which is the measurement mechanism. Then the test circuits of the opening and closing response time of the EFI were designed, and the measurement system was developed with the C8051 F310 as the processor. And the measurement system is low cost, convenient and high precision. The results show that the measurement errors of the opening and closing response time of the EFI were 0. 9% and 1.14%, and this meet to the testing requirements of some research on the EFI.

关 键 词：计量学 电控喷油器 动态性能 响应时间 

分 类 号：TB937[一般工业技术—计量学]