GDI고압연료펌프의 spill valve 제어기에 대한 HALT Test 환경구축

Spill valve controller is the main components in GDI fuel pump for automotive, because it determines the pressure of the fuel and the vehicle fuel efficiency increase according to appropriately controlled spill valve. And HALT(Highly Accelerated Life Test) for spill valve has been one of the most interesting fields in part"s life for GDI fuel pump. Therefore HALT for GDI fuel pump has been researched in order to improve GDI fuel pump"s life. In this study, test environment was established as the structure of the fuel cycle. And how to test method of temperature and vibration was decided. In the result of test, spill valve was found to be sensitive the temperature more than vibration. And the supply current for the spill valve has changed according to temperature. Thus, characteristics of temperature and vibration for the valve were analyzed. And this study is expected to be a help to the study on the reliability for the spill valve.