Torque Ripples in Electric Vehicle Drive Quality in Open and Closed Loop Control Environments
- Delivery
- Provide download link
- Format
- Price
- Non-members (tax incl.)：￥6,600 Members (tax incl.)：￥5,280
- Paper/Info type
- SAE Paper
No.2021-01-0981
- Pages
- 1-6(Total 6 p)
- Date of publication
- Apr 2021
- Publisher
- SAE International
- Language
- English
- Event
- SAE WCX Digital Summit 2021
Detailed Information
| Author(E) | 1) Hyung-Joo Hong, 2) Xing Xing, 3) Robert Morris |
|---|---|
| Affiliation(E) | 1) General Motors LLC, 2) General Motors LLC, 3) General Motors LLC |
| Abstract(E) | 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. |
