Motor assisted bicycle

A technology for electric assistance and bicycles, applied in vehicle components, rider driving, transportation and packaging, etc., can solve problems such as incommensurate feeling, different degrees of fatigue of riders, etc., and achieve an effect that is easy to guess

Active Publication Date: 2013-10-23
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, for example, in the case where the body index is determined only by the heart rate, even if the body index has the same value due to the same heart rate, the degree of fatigue felt by the rider varies depending on the riding conditions such as the duration of the ride. Different, so there is a problem that the amount of assistance does not match the feeling of the rider

Method used

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  • Motor assisted bicycle
  • Motor assisted bicycle
  • Motor assisted bicycle

Examples

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Embodiment Construction

[0040] An example of embodiment of the motor-assisted bicycle of the present invention will be described with reference to the drawings. figure 1 It is a side view of a motor-assisted bicycle provided with an assist driving force control device which is a characteristic structure of the present invention. The assist driving force control device is a device that efficiently assists the driving force of the motor by estimating the degree of fatigue of the rider and determining the assist amount.

[0041] The power assist bicycle 50 includes a head pipe 51 located in front of the vehicle body, a down frame 52 extending rearward and downward from the head pipe 51 , and a seat tube 53 standing upward from the rear end of the down frame 52 . A front fork 54 extending downward is connected to the head pipe 51 in a steerable manner, and a front wheel WF is pivotally supported at the lower end of the front fork 54 . A vehicle speed sensor 1 for detecting the vehicle speed of the power...

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PUM

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Abstract

To provide an efficient assist by a motor by setting an assist amount based on fatigue information which is actually measured while estimating the degree of fatigue which a rider feels in a motor assisted bicycle. Means for Resolution In a motor assisted bicycle which includes: a stepping force sensor 2 which detects a stepping force generated on a pedal; an assist amount control part 10 which includes an assist amount correction means which performs the estimation of fatigue of a human body and decides an assist force corresponding to an output of the stepping force sensor 2; and a motor 5 which generates the assist force and assists a drive force, the motor assisted bicycle further comprises a vehicle speed sensor 1 which detects a vehicle speed of the vehicle, and the assist amount control part 10 includes: a basic assist amount setting part 11 which sets by calculation a basic assist amount based on the stepping force and the vehicle speed; and a fatigue level estimation part 12 which performs the increase/decrease correction of the basic assist amount by estimating a fatigue level of a rider.

Description

technical field [0001] The present invention relates to an electrically assisted bicycle having a motor for assisting the driving force generated by pedaling force generated by a person pedaling, and more particularly to a motor that is efficiently performed in consideration of the degree of fatigue of the rider Assisted Electric Assisted Bikes. Background technique [0002] A power-assisted bicycle includes a pedaling force sensor that detects the pedaling force generated on the pedals, a motor that assists the driving force based on the output of the pedaling force sensor, a crank angle sensor that detects the angle of the crankshaft connected to the pedals, and a crank speed sensor that detects the rotational speed of the crankshaft . [0003] As an electric bicycle that assists the driving force in consideration of not only the pedal force but also the degree of fatigue in order not to increase the motor assist force when a rider with a low degree of fatigue is riding, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M6/45
CPCB62M6/55B62M6/45
Inventor 品川正贵小泽圣二守谷刚柏井干雄
Owner HONDA MOTOR CO LTD
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