To provide a power-assisted bicycle allowing a measurement unit for assist control to be installed without modification of the bicycle.SOLUTION: A power-assisted bicycle 10 includes a power-assisted device 50 supported by a frame 18, and rotation output of the power-assisted device 50 is transmitted to a crank axle 24 of a pedal 30. The power-assisted bicycle includes a measurement unit 138 configured to measure a load applied to a support portion 90 of the power-assisted device 50 to the frame 18, a pedal pressure estimation unit 140 configured to estimate pedal pressure of the pedal 30 in accordance with a load detected by the measurement unit 138, and an assist control unit 142 configured to control the amount of assist of the power-assisted device 50 based on an estimated value of the pedal pressure.SELECTED DRAWING: Figure 6

    【課題】電動アシスト自転車において、アシスト制御のための計測部を、自転車の改造を要することなく設置することができるようにすること。【解決手段】フレーム18に支持された電動アシスト装置50を備え、電動アシスト装置50の回転出力がペダル30のクランク軸24に伝達される電動アシスト自転車10であって、フレーム18に対する電動アシスト装置50の支持部90に作用する荷重を計測する計測部138と、計測部138により検出される荷重に応じてペダル30の踏力を推定する踏力推定部140と、踏力の推定値に基づいて電動アシスト装置50のアシスト量を制御するアシスト制御部142とを有する。【選択図】図6


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    Title :

    POWER-ASSISTED BICYCLE


    Additional title:

    電動アシスト自転車


    Contributors:

    Publication date :

    2020-09-17


    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




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