The invention discloses an
electric drive system NVH dynamic test
system and method based on XIL. The
system comprises a driver-in-the-loop module, a real object-in-the-loop module and an NVH
data acquisition system. The driver in-the-loop module is used for collecting a driver real-time operation
signal and providing a virtual driving environment; the real object in-the-loop module receives a
signal through a real-time
simulation machine, and a co-
simulation model is used for resolving vehicle dynamic operation parameters; and the rack system drives the
dynamometer to apply a dynamic load to the tested electric driving system by adopting a composite control framework based on rotating speed closed-
loop control and combined with dynamic compensation according to the parameters. By constructing a human-vehicle-road closed-loop
coupling mechanism, the problem that transient load change in a complex driving scene cannot be reproduced in a traditional rack test is solved, working conditions such as urgent acceleration and braking can be simulated in a high-fidelity manner, vibration and
noise response of an electric driving system in real dynamic operation can be accurately captured, and the reliability of the electric driving system is improved. And the authenticity and the effectiveness of the NVH test are obviously improved.