The present disclosure refers to a bidirectional power supply system for powering a control unit (16) of an electric vehicle, the bidirectional power supply system comprising a low voltage primary power supply adapted to power the control unit (16) as a component of a low voltage board net in a first mode of operation, a high voltage traction battery (14) of the electric vehicle as part of a high voltage board net, and a bidirectional DC-DC converter (12) adapted to, in the first mode of operation, transfer energy from the low voltage board net to the high voltage board net to power components of the high voltage board net via the primary power supply, the DC-DC converter (12) being further adapted to, in a second mode of operation, transfer energy from the high voltage board net to the low voltage board net to power the control unit (16) via the high voltage traction battery (14) in case of loss of the primary power supply, the bidirectional power supply system further comprising a measurement element (18) adapted to detect whether the primary power supply is lost, and a switching element (18) adapted to switch operation of the DC-DC converter (12) from the first mode to the second mode, if loss of the primary power supply is detected.
BIDIRECTIONAL POWER SUPPLY SYSTEM FOR POWERING A BATTERY MANAGEMENT SYSTEM OF AN ELECTRIC VEHICLE
BIDIREKTIONALES STROMVERSORGUNGSSYSTEM ZUR SPEISUNG EINES BATTERIEMANAGEMENTSYSTEMS EINES ELEKTRISCHEN FAHRZEUGS
SYSTÈME D'ALIMENTATION BIDIRECTIONNELLE POUR ALIMENTER UN SYSTÈME DE GESTION DE BATTERIE D'UN VÉHICULE ÉLECTRIQUE
2022-12-28
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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