To equalize the degradation rate of internal components of each charger in an onboard charger equipped with a plurality of chargers.SOLUTION: An onboard charger 1 comprises a plurality of chargers 2 connected in parallel in a charging path from an AC power source P to an onboard battery B, a plurality of sensors 3 that detect the temperature of the charger 2, and a control unit 41. A control unit 42 calculates the temperature index corresponding to each charger 2 by using the temperature detected by the sensors 3 and the operating time of the onboard charger 1, calculates the cumulative value of the temperature index for each operation of the onboard charger 1 as the integrated temperature index, and operates the charger 2 corresponding to the smallest integrated temperature index with priority over the other chargers 2.SELECTED DRAWING: Figure 1
【課題】複数の充電器を備える車載充電装置において、各充電器の内部部品の劣化速度の平準化を図る。【解決手段】交流電源Pから車載バッテリBへの充電経路において並列接続された複数の充電器2と、充電器2の温度を検知する複数のセンサ3と、制御部41とを備えて車載充電装置1を構成し、制御部42は、センサ3により検知される温度と車載充電装置1の稼働時間とを用いて各充電器2にそれぞれ対応する温度指数を算出するとともに、車載充電装置1の稼働毎の温度指数の累積値を積算温度指数として算出し、最も小さい積算温度指数に対応する充電器2を他の充電器2よりも優先的に稼働させる。【選択図】図1
ONBOARD CHARGER AND CHARGER CONTROL DEVICE
車載充電装置及び充電器制御装置
2022-02-24
Patent
Elektronische Ressource
Japanisch
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 |