An electric powered vehicle (100) is equipped with a main battery (10) for storing electric power input to and output from a motor (30), and an auxiliary battery (70) as a power source for an auxiliary system including a control system. A DC/DC converter (60) converts an output voltage of the main battery (10) to a level of an output voltage of the auxiliary battery (70). During operation, a BAT-ECU (85) monitors states of charge of the main battery (10) and the auxiliary battery (70) and controls operation/stop of the DC/DC converter (60). When the electric powered vehicle is in a key-off state (running stop state), the BAT-ECU (85) is intermittently operated, while an external charging system and a vehicle running system are stopped.
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
2019-01-09
Patent
Electronic Resource
English
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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