The invention relates to a method for controlling an inverter connected to an electric traction motor of a vehicle, performed by a control device supplied by a so-called low-voltage power supply, and for applying a safety operating mode by an auxiliary power supply comprising an electrical capacitor. When a loss of the low-voltage power supply occurs, the control device applies either a safety mode ASC associated with active discharge of the electrical capacitor, or a freewheeling mode FW. According to the invention, when the ASC mode is applied to the inverter, if the input voltage of the auxiliary power supply drops below a given minimum voltage, which is greater than a minimum operating voltage of the control device, then the FW operating mode is applied to the inverter, and when the FW mode is applied to the inverter, if the input voltage of the auxiliary power supply rises to a predefined voltage threshold, then the ASC operating mode is applied to the inverter. The invention also relates to a corresponding system.
PROCÉDÉ DE PILOTAGE D'UN ONDULEUR ET SYSTÈME CORRESPONDANT
METHOD FOR CONTROLLING AN INVERTER AND CORRESPONDING SYSTEM
VERFAHREN ZUR STEUERUNG EINES WECHSELRICHTERS UND ENTSPRECHENDES SYSTEM
2023-09-13
Patent
Elektronische Ressource
Französisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
PROCÉDÉ DE PILOTAGE D'UN ONDULEUR ET SYSTÈME CORRESPONDANT
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