Advancements in the Powertrain Test Environment and the Impact of ADAS Development

Philip Lawson
Senior Manager Emissions Testing
Jaguar LandRover

 

The automotive industry faces one of the most intense periods of technological change in its history due to the introduction of new legislation (e.g. RDE), higher levels of electrification (e.g. PHEV, BEV), and sophisticated control systems (i.e. ADAS). This challenge is compounded in the product testing environment at Jaguar Land Rover by market pressures: increasing sales, expanding product portfolios, and an expanding global footprint. We, at JLR, have responded to this capacity challenge by investing in "System-V" styled strategies which employ higher levels of Simulation (e.g. Engine-in-Loop testing) to validate system-level attributes via component-level test facilities. Such strategies aim to achieve full integration of control systems earlier in the development programme, reducing the requirement of full physical system tests (e.g. chassis-dynamometer testing) to final Validation and Homologation.

 

Recent experience with hybrid powertrain programmes has highlighted the challenge presented when integrating multiple control systems within the Unit-Under-Test in the powertrain test environment. Tighter integration between ADAS, powertrain, and body control strategies requires increasingly complex, high-bandwidth interactions between these vehicle control systems. Such complications have driven the need to increase the focus and effort on standardisation in hardware interfaces, data storage formats, and ultimately test system interfaces. As the vehicle development cycle becomes more "front-loaded" with Simulation technology, the product testing environment must resolve how to efficiently combine the CAE efforts of multiple departments.