PROBLEM TO BE SOLVED: To provide a bicycle with electric motor which prevents a motor from being actuated in accordance with an input torque generated due to such circumstances that a tread force is not applied, while maintaining riding comfort upon traveling.SOLUTION: A bicycle with an electric motor includes: a vehicle speed detection part which detects a vehicle speed; a torque detection part which detects an input torque generated on a crank shaft coupled to a pedal by a tread force applied to a pedal; a driving mechanism which transmits an input torque generated on the crank shaft to a rear wheel; a motor 40 which generates an auxiliary driving force for driving a front wheel or the rear wheel; and a control part which controls the motor 40 so as to stop the generation of the auxiliary driving force in such a low speed and low torque state that a vehicle speed detected by a vehicle speed detection part 112 is smaller than a predetermined value and the input torque detected by the torque detection part 114 is smaller than a predetermined value and controls the motor 40 so as to generate an auxiliary driving force in a case besides the low speed and low torque state within the prescribed vehicle speed range.

    【課題】走行時における乗り心地を維持しつつ、踏力が印加されていない状況に起因して生じる入力トルクに応じてモータが作動することを防止する。【解決手段】電動機付自転車は、車速を検出する車速検出部と、ペダルに加えられた踏力によってペダルに連結されたクランク軸に生じる入力トルクを検出するトルク検出部と、クランク軸に生じる入力トルクを後輪に伝達する駆動機構と、前輪または後輪を駆動する補助駆動力を発生させるモータ40と、車速検出部112によって検出された車速が所定値よりも小さく且つトルク検出部114によって検出された入力トルクが所定値よりも小さい低速低トルク状態の場合には補助駆動力の発生を停止させるようにモータ40を制御し、所定の車速範囲内における低速低トルク状態以外の場合には補助駆動力を発生させるようにモータ40を制御する制御部と、を含む。【選択図】図3


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    Titel :

    BICYCLE WITH ELECTRIC MOTOR


    Weitere Titelangaben:

    電動機付自転車


    Beteiligte:
    NISHIMURA RITSUO (Autor:in) / TAKAHASHI HIROSHI (Autor:in) / KAMO YUJI (Autor:in) / TAGAMI MASARU (Autor:in)

    Erscheinungsdatum :

    2016-01-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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