Method of controlling motor torque for learning resolver offset of electric vehicle
US11820355B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 13, 2021 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Apr 5, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/083
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling motor torque for learning a resolver offset of an electric vehicle includes steps of: determining whether a condition for offset learning mounted to a main drive motor and to an auxiliary drive motor is satisfied; controlling an output torque of a learning drive motor, which includes a resolver to perform the offset learning among the main drive motor and the auxiliary drive motor to a zero torque, when the condition for performing the offset learning is satisfied; increasing an output torque of a non-learning drive motor, which includes a resolver not performing the offset learning among the main drive motor and the auxiliary drive motor by a torque reduction amount, when the learning drive motor outputs zero torque; and performing the offset learning of the resolver mounted to the learning drive motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.