Browse Publications Technical Papers 2014-01-1738
2014-04-01

HIL Driveline Dyno 2014-01-1738

Today's sophisticated state-of-the-art powertrains with various intelligent control units (xCU) need to be calibrated and tested stand-alone as well as in interaction. Today the majority of this work is still carried out with prototype vehicles on test tracks. Moving prototype vehicle tests from the road into the lab is key in achieving shorter development times and saving development cost. This kind of frontloading requires a modular and powerful simulation of all vehicle components, test track, and driver in steady state and dynamic operation.
The described HIL (Hardware In the Loop) high performance driveline dyno test bed uses driveline components and models from the engine all the way to the wheel ends. The test cell was built to do real time vehicle maneuvers and NVH testing. This test setup can emulate any road surface and grade and vehicle inertia including wheels and engine as close to reality as possible.
This test set-up will be used to calibrate, test, and validate the complete driveline system or any part thereof. Besides dynamic real-world maneuvers, typical NVH testing is also possible.
The test bed contains low inertia high performance Permanent Magnet Machine dynos. These motors simulate the road load at each individual wheel and simulate a combustion engine. The modular design allows flexible testing of driveline components as well as the complete driveline (front-, rear-, all-wheel drive).

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