To suppress generation of current from a drive unit to a battery when a discharge battery is switched.SOLUTION: A control device 38 sets a second current control switch 31B to an intermediate state in a process of switching a discharge battery, which supplies current to a drive unit 10, from a first battery 41A to a second battery 41B. Thereafter, when a relative relation between a potential of a smoothing capacitor 16 and a potential of a second battery 41B satisfies a condition for terminating the intermediate state, the control device 38 sets the second current control switch 31B to a bidirectional conduction state. The intermediate state is a state in which current flowing from the batteries 41A and 41B to a drive unit 10 is permitted and current flowing from the drive unit 10 to the batteries 41A and 41B is restricted. The bidirectional conduction state is a state in which current flowing from the batteries 41A and 41B to the drive unit 10 and current flowing from the drive unit 10 to the batteries 41A and 41B are both permitted.SELECTED DRAWING: Figure 6A

    【課題】放電バッテリの切り換えに際して、駆動ユニットからバッテリへの電流が発生することを抑える。【解決手段】制御装置38は、駆動ユニット10に電流を供給する放電バッテリを第1バッテリ41Aから第2バッテリ41Bに切り換える過程において、第2電流制御スイッチ31Bを中間状態に設定する。その後、平滑コンデンサ16の電位と第2バッテリ41Bの電位の相対関係が中間状態終了条件を満たしたときに、制御装置38は、第2電流制御スイッチ31Bを双方向導通状態に設定する。中間状態は、バッテリ41A・41Bから駆動ユニット10へ流れる電流が許容され、駆動ユニット10からバッテリ41A・41Bへ流れる電流が規制される状態である。双方向導通状態は、バッテリ41A・41Bから駆動ユニット10へ流れる電流と、駆動ユニット10からバッテリ41A・41Bへ流れる電流の双方が許容される状態である。【選択図】図6A


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    Title :

    ELECTRIC BICYCLE, BATTERY SWITCHING DEVICE, AND SWITCHING METHOD FOR BATTERY


    Additional title:

    電動自転車、バッテリ切換装置、及び、バッテリの切換方法


    Contributors:

    Publication date :

    2023-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / 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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