A system for a vehicle includes a pair of electrical buses connected to terminals of a traction battery via a shared positive contactor and a pair of negative contactors. The system further includes a controller configured to, responsive to a request to close the contactors and a difference between voltage magnitudes of the buses being greater than a predefined threshold, actively discharge one of the buses to reduce the difference.
HIGH VOLTAGE BUS CONTACTOR FAULT DETECTION
2018-05-17
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |