An electric vehicle drive system, a backup power supply device and a backup power supply method for an electric vehicle drive system are provided. The method includes: converting a voltage on a high voltage DC bus of an electric vehicle into a backup input voltage; determining whether a low voltage battery in the electric vehicle drive system has power supply abnormity; and determining the backup input voltage to be an input voltage of a low voltage power supply circuit in the electric vehicle drive system, in a case that the low voltage battery has power supply abnormity.
ELECTRIC VEHICLE DRIVE SYSTEM, BACKUP POWER SUPPLY DEVICE AND METHOD THEREFOR
ELEKTROFAHRZEUGANTRIEBSSYSTEM, RESERVESTROMVERSORGUNGSVORRICHTUNG UND VERFAHREN DAFÜR
SYSTÈME DE COMMANDE DE VÉHICULE ÉLECTRIQUE, DISPOSITIF D'ALIMENTATION DE SECOURS ET PROCÉDÉ ASSOCIÉ
17.04.2024
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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