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Control system for controlling three-phase synchronous machine of electric car, has regulating unit capable of degrading electrical efficiency of synchronous machine according to permissible power level of battery
Control system for controlling three-phase synchronous machine of electric car, has regulating unit capable of degrading electrical efficiency of synchronous machine according to permissible power level of battery
The system (10) has a detecting unit (11) for detecting a negative power according to the position of an acceleration pedal (4) cooperating with an electric machine i.e. three-phase synchronous machine (1), where a control unit (12) control the synchronous machine. The control unit includes a regulating unit (14) for regulating a charging current delivered to a battery (2) by the synchronous machine, where the regulating unit is capable of degrading the electrical efficiency of the synchronous machine according to the permissible power level of the battery. An independent claim is also included for a method for controlling an electric machine of an electric car.
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