High voltage battery contactor welding prevention techniques for an electrified vehicle include, in response to a request to perform a high voltage connection procedure, utilizing a supervisory controller to monitor a voltage of the low voltage battery system to determine whether a low voltage battery system of the vehicle has a voltage level sufficient to open/hold the set of contactors during the high voltage connection procedure, when the low voltage battery system has sufficient voltage, commanding by the supervisory controller to a sub-controller to perform the high voltage connection procedure, and when the low voltage battery system does not have sufficient voltage, displaying a low voltage indicator for a user to recharge the low voltage battery system before the high voltage connection procedure can occur.
HIGH VOLTAGE BATTERY CONTACTOR WELDING PREVENTION
2024-04-04
Patent
Electronic Resource
English
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
High Voltage Battery Contactor Arrangement For DC Fast Charging
European Patent Office | 2017
|High voltage battery contactor arrangement for DC fast charging
European Patent Office | 2019
|Analysis and Prevention Suggestion of DC Aviation Contactor Fusion Welding Fault
DOAJ | 2021
|Electric powertrain with battery system having multi-pole high-voltage contactor
European Patent Office | 2022
|