| Title |
A Study on the Evaluation Method for Durability Life of Vehicle,s ECU |
| Authors |
김병우(Kim, Byeong-Woo) ; 최범진(Choi, Beom-Jin) ; 조현덕(Cho, Hyun-Duck) ; 이도희(Lee, Do-Hee) |
| Keywords |
Accelerated Life ; Electronics Control Unit ; Arrhenius Model ; Durability Life |
| Abstract |
In order to assess the reliability of the electronics control unit for vehicles, accelerated life test model and procedure are developed. By using this method, failure mechanism and life distribution are analyzed. The main results are as follows : i) the main failure mechanism is degradation failure that is, junction destruction of a semiconductor resin by high temperature. ii) the life distribution of the electronics control unit for vehicles is fitted well to Weibull life distribution and the accelerated life model of that is fitted well to Arrhenius model. iii) at the result of the life distribution, accelerated life test method is developed, and test time for life assessment will be shortened by 5,000 hours by this test method. |