Motor controller and motor control method for an electronic vehicle
US12142912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 17, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2240/421
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control method for coupled an electronic vehicle is provided. The motor controller controls a motor and is powered by a battery. The motor control method includes: when a main relay of the motor controller suddenly breaks contact, in a first phase, feeding back a surge current into the battery to suppress the surge current by a diode and a first current limit resistor of a first protecting circuit of the motor controller; and, in a second phase, conducting a discharge switch of a second protecting circuit of the motor controller by a control unit of the motor controller, and releasing the surge current to a reference voltage range by the discharge switch and a second current limit resistor of the second protecting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.