A power supply system includes a main power storage devices (BA) and a Plurality of sub power storage devices (BB1, BB2). A converter (12B) is connected to a selected one of the sub power storage devices (BB1, BB2) to convert voltage between the selected sub power storage devices and an electric power feeding line (PL2) bidirectionally. Connection of the sub power storage devices is switched and, when the last sub powder storage is used, a request to disconnect the sub power storage devices is generated based on the SOC of the sub power storage device and the vehicle state. Specifically, where the SOC is included in a disconnection forced region in which the SOC is smaller than a reference lower limit, the sub power storage devices is forced to be disconnected regardless of the vehicle state. Where the SOC is included in a disconnection permitted region in which the SOC is higher than that in the disconnection forced region, the disconnection request is generated on condition that the vehicles is in such a state that will not affect vehicle's drivability.
POWER SUPPLY SYSTEM FOR ELECTRIC VEHICLE AND CONTROL METHOD THEREOF
STROMVERSORGUNGSSYSTEM FÜR ELEKTROFAHRZEUG UND STEUERVERFAHREN DAFÜR
SYSTÈME D'ALIMENTATION POUR VÉHICULE ÉLECTRIQUE ET SON PROCÉDÉ DE COMMANDE
15.08.2018
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 |
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