POWER SYSTEM

• Main Author: NAKAMURA KEIICHI
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2017
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

PROBLEM TO BE SOLVED: To suppress the increase of a dark current during the transportation of a vehicle if the capacity check of a second battery is executed in a vehicle left state.SOLUTION: A power system loaded on a vehicle includes: a first power supply route in which a first battery is connected to a first load; a second power supply route in which a second battery is connected to a second load; a cut pin inserted between the first power supply route and the second power supply route; a backup target load to which power is supplied from a power supply route having a higher voltage between the first power supply route and the second power supply route; and an electronic control device. On determining that the vehicle is left, the second battery is assembled on the vehicle and the cut pin is not extracted, the electronic control device executes the capacity check of the second battery. On determining that the vehicle is left, the second battery is assembled on the vehicle and the cut pin is extracted, the electronic control device stops the capacity check of the second battery.SELECTED DRAWING: Figure 1 【課題】車両の放置状態で第２のバッテリの容量チェックを実施しても、車両の輸送時の暗電流の増加を抑制すること。【解決手段】車両に搭載された電源システムであって、第１のバッテリと第１の負荷とが接続された第１の給電経路と、第２のバッテリと第２の負荷とが接続された第２の給電経路と、第１の給電経路と第２の給電経路との間に挿入されたカットピンと、第１の給電経路と第２の給電経路とで電圧が高い方の給電経路から給電されるバックアップ対象負荷と、電子制御装置とを備え、前記電子制御装置は、前記車両が放置されていて第２のバッテリが前記車両に組み付いていて前記カットピンが抜かれていないと判定したとき、第２のバッテリの容量チェックを実施し、前記車両が放置されていて第２のバッテリが前記車両に組み付いていて前記カットピンが抜かれていると判定したとき、第２のバッテリの容量チェックを中止する、電源システム。【選択図】図１