A vehicle (1) includes a chargeable and dischargeable battery (B1), a current sensor (11-1) for detecting electric current of the battery, and a controller (30) for estimating a state of charge of the battery and controlling charging and discharging of the battery based on the state of charge. In a first operation mode in which charging and discharging cycles are repeated, the controller (30) estimates an open-circuit voltage of the battery and determines the state of charge based on a value obtained by correcting the open-circuit voltage based on polarization. In a second operation mode in which one of charging and discharging is continued, the controller (30) determines the state of charge based on a result of integration of the current detected by the current sensor. In this way, the vehicle can be provided in which the secondary battery can be charged with and discharge a large amount of energy and can be effectively used.
VEHICLE AND METHOD FOR ESTIMATING CHARGED STATE OF SECONDARY BATTERY
FAHRZEUG UND VERFAHREN ZUR SCHÄTZUNG DES LADESTATUS EINER SEKUNDÄRBATTERIE
VEHICULE ET PROCEDE PERMETTANT D'ESTIMER L'ETAT CHARGE DE LA BATTERIE RECHARGEABLE
2016-03-23
Patent
Elektronische Ressource
Englisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 / 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 / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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