An in-vehicle power supply system includes a first power storage device including one or more lithium ion secondary batteries, a second power storage device connected in parallel to the first power storage device, and a charge/discharge control device. The second power storage device includes lithium ion capacitor groups constituted by a first capacitor group including one or more lithium ion capacitors and a second capacitor group connected in parallel to the first capacitor group and including one or more lithium ion capacitors. The charge/discharge control device controls charging/discharging of the first and second power storage devices to supply electric power to a drive source of a vehicle and recovers regenerative energy of the vehicle. When the first capacitor group discharges electric power preferentially over the second capacitor group, the charge/discharge control device performs control such that the second capacitor group is charged preferentially over the first capacitor group.
IN-VEHICLE POWER SUPPLY SYSTEM, CHARGE/DISCHARGE CONTROL DEVICE, AND VEHICLE
2024-10-03
Patent
Electronic Resource
English
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
In-vehicle power supply system, charge/discharge control device, and vehicle
European Patent Office | 2025
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