PROBLEM TO BE SOLVED: To provide a power supply controller for a vehicle, power supply system for the vehicle, and power supply control method capable of securing redundancy of a power supply for the vehicle.SOLUTION: A power supply controller for a vehicle according to one aspect of an embodiment for controlling a main power supply and sub power supply that store power generated by a power generator interlocked with an internal combustion engine of the vehicle and supply the stored power to a load, comprises: a first switch; a second switch; a control unit; and a switching circuit. The first switch is provided between the main power supply and the power generator. The second switch is provided between the sub power supply and the power generator. The control unit, according to a state of the vehicle, controls connection states of the first switch and the second switch. The switching circuit, when a voltage of the main power supply is lower than that of the sub power supply by a threshold or more, switches the first switch and/or the second switch into an ON state.SELECTED DRAWING: Figure 1B
【課題】車両用電源の冗長性を確保することができる車両用電源制御装置、車両用電源システムおよび電源制御方法を提供する。【解決手段】実施形態の一態様に係る車両用電源制御装置は、車両の内燃機関に連動する発電機が発電した電力を蓄電するとともに、蓄電した電力を負荷に供給する主電源および副電源を制御する車両用電源制御装置であって、第1スイッチと、第2スイッチと、制御部と、切替回路と、を備える。第1スイッチは、主電源と発電機との間に設けられる。第2スイッチは、副電源と発電機との間に設けられる。制御部は、車両の状態に応じて、第1スイッチおよび第2スイッチの接続状態を制御する。切替回路は、主電源の電圧が副電源の電圧より閾値以上低い場合に第1スイッチまたは/および第2スイッチをオン状態に切り替える。【選択図】図1B
POWER SUPPLY CONTROLLER FOR VEHICLE, POWER SUPPLY SYSTEM FOR VEHICLE, AND POWER SUPPLY CONTROL METHOD
車両用電源制御装置、車両用電源システムおよび電源制御方法
2017-10-19
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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