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http://dx.doi.org/10.7467/KSAE.2014.22.4.145

Design and Application of Accelerated Run-in Test for ECU Quality Improvement  

Cho, Hyogeun (Powertrain Engine System ECU(Electronic Control Unit) Electronics, Continental Automotive Systems Corporation)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.22, no.4, 2014 , pp. 145-151 More about this Journal
Abstract
Modern vehicle has a lot of ECU(Electronic Control Unit) products to control many parts such as engine, transmission, brake, body and so on. ECU quality is one of important factors related to vehicle quality and driver's safety. Based on Bath-tub curve which presents failure rate during product lifetime, we designed and applied Accelerated Run-in Test into manufacturing line by simulating stress amount to ECU and developing the required software and efficient test equipment for mass production. This test makes ECU products stressed through electrical and thermal stresses under excessive driving condition, which induce potential initial failure of components in the ECU during production. The outcome until these days proved that Acceleration Run-in Test have reduced initial failure rates and increased quality of ECU products in the field outstandingly.
Keywords
Electronic Control Unit(ECU); Engine Management System ECU(EMS ECU); Accelerated run-in test;
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