초록 ▼

A motorized bicycle includes an electric motor, a motor current detector, a pedaling force detector and a controller. The controller compares the range of fluctuation in a pedaling force detected by the pedaling force detector with a predetermined range value, and stops the driving of the electric m

A motorized bicycle includes an electric motor, a motor current detector, a pedaling force detector and a controller. The controller compares the range of fluctuation in a pedaling force detected by the pedaling force detector with a predetermined range value, and stops the driving of the electric motor if the fluctuation range of the pedaling force is kept smaller than the predetermined range value for more than a predetermined time period.

대표청구항 ▼

[ What is claimed is:] [1.] A motorized bicycle comprising:man-power driving means for driving a wheel by man-power;a man-power sensor for detecting a driving force of the man-power driving means;electromotive driving means for driving the wheel by an electric motor;an electromotive-power sensor for

[ What is claimed is:] [1.] A motorized bicycle comprising:man-power driving means for driving a wheel by man-power;a man-power sensor for detecting a driving force of the man-power driving means;electromotive driving means for driving the wheel by an electric motor;an electromotive-power sensor for detecting a driving force of the electromotive driving means;control means for controlling the driving force of the electromotive driving means on the basis of signals from the man-power sensor and the electromotive-power sensor; andamplitude detecting means for detecting an amplitude representing a difference between a substantially maximum driving force and a substantially minimum driving force detected by the man-power sensor,wherein the control means includes: (i) operation stopping means for comparing the amplitude detected by the amplitude detecting means with a predetermined value, and stopping the operation of the electromotive driving means in response to a result of the comparison; (ii) operation starting means for comparing the driving force detected by the man-power sensor with a predetermined threshold value and for starting the operation of the electromotive driving means when the driving force detected by the man-power sensor exceeds the predetermined threshold value; and (iii) threshold value updating means for comparing the amplitude detected by the amplitude detecting means with the predetermined value and updating the predetermined threshold value to a sum of the predetermined value and the driving forces detected by the man-power sensor if the detected amplitude is smaller than the predetermined value for more than a predetermined time period.