Torque Ripples in Electric Vehicle Drive Quality in Open and Closed Loop Control Environments General Motors LLC

Format:

Book

Conference/Event

Author/Creator:

Hong, Hyung-Joo, author.

Contributor:

Morris, Robert

Xing, Xing

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Torque ripple of electric motors is a unique feature in Battery Electric Vehicles (BEV) affecting vehicle performance. It is one of the disturbances from electric motors resulting in unpleasant vehicle fore-aft vibrations at specific vehicle speeds. In this study, the torque ripple modeling and simulation procedure has been developed. Critical modeling contents in a full vehicle ADAMS model and a brief overview of the propulsion control are described. Analytical data sets for torque fluctuations (torque ripple) from a couple of different sources are incorporated in the model. The CAE simulation procedure was applied to simulate vehicle performances of a General Motors Battery Electric Vehicle in an early vehicle design phase. Torque ripple phenomena are simulated both in an open-loop and closed-loop propulsion control environment to see how much vehicle fore-aft vibration suppression is achieved by the motor control methods. The simulated results show a good agreement with measurements from previous vehicle programs. A few parameter variation studies explain the physics behind torque ripple phenomena. Based on the results, balancing design parameters for torque ripple performance is also discussed

Notes:

Vendor supplied data

Publisher Number:

2021-01-0981

Access Restriction:

Restricted for use by site license