Motor controller, active short circuit thereof, and method for controlling active short via the same
US11177751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2020 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Feb 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor controller, an active short circuit thereof, and a method for controlling active short via the same. An enabling signal is generated and outputted in response to determining that a vehicle is to enter a safe mode and a speed of a motor exceeds a threshold. Currents of a direct-axis and a quadrature-axis of the motor are adjusted to characteristic currents according to the enabling signal. An action flag signal and a control signal that corresponds to the enabling signal are generated and outputted in response to determining that the currents of the direct-axis and the quadrature-axis are adjusted to be the characteristic currents. A driving signal corresponding to the control signal is generated and outputted according to the action flag signal. A driving circuit safely controls a corresponding switch transistor in the inverter to be turned on based on the driving signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.