To keep a calculation accuracy of a charging rate even in a vehicle having a small number of external charging opportunities.SOLUTION: A charging rate calculation device 80 calculates a charging rate of a battery 50 for sending/receiving electric power from a motor 23. A current sensor 54 detects the current input/output to the battery 50. A first electric power calculation unit 82 calculates a first electric power amount input/output to the battery 50. A second electric power calculation unit 84 calculates a second electric power amount input/output to the motor 23 on the basis of an operation state of the motor 23. An abnormality determination unit 88 determines whether the charging rate is abnormal on the basis of the comparison result between a first electric power amount and a second electric power amount.SELECTED DRAWING: Figure 2
【課題】外部充電の機会が少ない車両においても充電率の算出精度を維持する。【解決手段】充電率算出装置80は、モータ23と電力授受を行なうバッテリ50の充電率を算出する。電流センサ54は、バッテリ50に入出力される電流を検出する。第1の電力演算部82は、バッテリ50に入出力される第1の電力量を演算する。第2の電力演算部84は、モータ23の稼動状態に基づいてモータ23から入出力される第2の電力量を演算する。異常判定部88は、第1の電力量と第2の電力量との比較結果に基づいて、充電率に異常があるか否かを判定する。【選択図】図2
CHARGING RATE CALCULATION DEVICE
充電率算出装置
2019-03-07
Patent
Electronic Resource
Japanese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / 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 |
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