Abstract:

The features of different design concepts of the diesel engine electronic accelerator system were compared, the design criteria of the electronic accelerator with the linkage mechanism were analyzed. The geometric parameters and construction of its components were defined, their strengths were checked, and the optimization was realized by the computeraided design softwares such as CATIA, Matlab & Simulink,MSC.Adams, which are capable of analyzing comprehensively the design concepts and their rapid modification, thus shorten the design cycle greatly. The setup of the electronic accelerator test system was introduced and its engine bench test and vehicle test were performed. The test results show that the developed system  is characterized by good speed followup and regulation performances. An automated manual transmission with the developed electronic accelerator system gives out good vehicle ride comfort and reduces the synchronizing period of driving and driven plates of the clutch to enhance its life span.

Key words: power machinery and engineering;diesel engine, electronic accelerator system, automated manual transmission, optimization design