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Bicycle assisting force system adopting middle-axis torque sensor

A power assist system and sensor technology, applied in bicycle accessories, bicycle sensors, force/torque/power measuring instruments, etc., can solve problems such as lack of torque sensors and hinder market share

Active Publication Date: 2016-06-29
钟德斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hub motor industry is mature in my country, and there are many manufacturers, but lack of stable and reliable torque sensor hinders market share

Method used

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  • Bicycle assisting force system adopting middle-axis torque sensor
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  • Bicycle assisting force system adopting middle-axis torque sensor

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Embodiment Construction

[0060] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0061] Such as figure 1 and figure 2 As shown, the present invention adopts the bicycle power assist system of the axis moment sensor and includes two kinds of structural schemes:

[0062] The first structural solution is: the bicycle power assist system includes a central axis torque sensor, and the central axis torque sensor includes: an end cover 1, an elastic snap ring 2, a ball bearing 3, a nylon shaft bowl 4, a connecting wire 5, and a PCB board support 6 , Displacement Hall IC7, Speed ​​Hall IC8, Unipolar Magnetic Ring 9, Multipolar Magnetic Ring 10, Magnetic Ring Bracket 11, Nut 12, Disc Spring Set 13, Steel Ball 14, Limiting Steel Ball...

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PUM

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Abstract

The invention discloses a bicycle assisting force system adopting a middle-axis torque sensor. With the adoption of the system, a torsion moment, a rotary speed and a direction of a middle axis are measured by adopting the middle-axis torque sensor; after code table treatment, a voltage signal, which is the same as that of an electronic rotary handle of an electric vehicle, is output to a motor driver; and corresponding power is output by a wheel hub motor, and the power and a treading torque form a proportional assisting force. A torque input end with a first type of structure is a tapered semi-axis and a spline semi-axis is a torque output end; and a limiting ring and a semi-axis spherical bearing are further included. A second type of structure adopts two ends of the tapered middle axis to input torques; a torque output end is a thread semi-axis; and a rolling needle bearing and sprocket wheel four jaws are further included. The assisting force system disclosed by the invention is strong in stability and is suitable for various types of bicycle types; and the assisting force can be effectively provided for the bicycle, and an assisting force gear is set by reversely treading for a pre-set angle by a foot or pressing a key of a code table by a hand in a riding process.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a bicycle assisting system using a central axis torque sensor. Background technique [0002] In China, after the hub motor and battery are installed on the bicycle, the power output of the motor is adjusted by the electronic handle controlled by the hand, which belongs to a motor vehicle. The power-assisted bicycle starts the motor when the foot is stepped on, the power is cut off when the foot is stopped, and the power changes with the change of the pedaling torque. The proportional power-assisted bicycle is a non-motorized vehicle and is safer to ride. The key is to be able to measure the pedaling torque. [0003] Power-assisted bicycles are mainly divided into two categories. One category uses a mid-mounted motor, which has become the mainstream in the international market, such as Panasonic and Bridgestone in Japan; Bosch; Shimano. The motor is set at the bottom bracket of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M6/50B62J6/00B62J99/00G01L5/00
CPCB62J6/00B62J45/40B62J99/00B62M6/50G01L5/00
Inventor 钟德斌
Owner 钟德斌
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