North America

Green Room - Session 3

9:15 to 10:15 a.m. Wednesday, June 14, 2017

Engine Dynamometer Durability Testing Correlation with Customer Usage

Dynamometer durability tests are an effective method of validating engine design in a relatively short time suitable for demanding development timelines. Different dynamometer test schedules are intended to exercise and target components and systems and as these schedules are usually accelerated in order to allow for completion of one life in a shorter time period, the cumulative damage and impact of the test can vary from one engine component to next. The objective of this study is to develop a process for correlating the cumulative damage between the dynamometer testing and real world customer usage at a component level. An example is used for demonstration purposes.

Key Words: Duty Cycle, Reliability, Validation, Regenerative Braking, Engine Dynamometer Testing, Correlation, Cumulative Damage

Mohammad Hijawi

Fiat Chrysler Automobiles

Northville, Michigan