| 摘要 |
A method for controlling a permanent magnet synchronous electric machine (2) for a motor vehicle powered by an inverter (1) connected in input to a DC power supply bus. The method comprises the following steps: when a fault is detected, controlling the inverter so as to place it in an "open circuit" mode, if the voltage of the DC bus is higher than the nominal value thereof, controlling the inverter in order to place it in a "short-circuit" mode, if the voltage of the DC bus is lower than the nominal value thereof, determining whether the electromotive force between phases of the electric machine is lower than the voltage of the DC bus by detecting if non-zero phase currents persist in the machine. If this is the case, the method involves controlling the inverter in order to place it in a "short-circuit" mode. |
