To provide a power supply system that can reduce a deceleration feeling given to an occupant in a vehicle when output of a second battery largely decreases during traveling using combined output.SOLUTION: A power supply system comprises: a driving motor; a first battery; a second battery B2; an electric power circuit connecting the first and second batteries to the driving motor; and a management ECU that manages the electric power circuit to control delivery of electric power between the first and second batteries and the driving motor. The management ECU restricts electric power outputted by the second battery to a second output upper limit or less, at the time of traveling using combined output when the driving motor is driven using the combined output of the first and second batteries. Further, the management ECU sets the second output upper limit to second maximum output of the second battery when a first SOC of the first battery is larger than a residue-warning threshold, and sets the second output upper limit to a range extension-time upper limit smaller than the second maximum output when the first SOC is less than the residue-warning threshold.SELECTED DRAWING: Figure 4

    【課題】合成出力走行中に第2バッテリの出力が大きく低下した場合に、車両の乗員に与える減速感を軽減できる電源システムを提供することを目的とする。【解決手段】電源システムは、駆動モータと、第1バッテリと、第2バッテリB2と、第1及び第2バッテリと駆動モータとを接続する電力回路と、電力回路を操作し、第1及び第2バッテリと駆動モータとの間の電力の授受を制御するマネジメントECUと、を備える。マネジメントECUは、第1及び第2バッテリの合成出力によって駆動モータを駆動する合成出力走行時には、第2バッテリの出力電力を第2出力上限以下に制限する。またマネジメントECUは、第1バッテリの第1SOCが残量警告閾値より大きい場合、第2出力上限を第2バッテリの第2最大出力に設定し、第1SOCが残量警告閾値未満である場合、第2出力上限を第2最大出力より小さなレンジ延長時上限に設定する。【選択図】図4


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    Title :

    POWER SUPPLY SYSTEM


    Additional title:

    電源システム


    Contributors:

    Publication date :

    2022-06-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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