Booster bicycle provided with magnetic flux sensor with multiple magnetic blocks in nonuniform distribution in shell

Abstract

The invention discloses a booster bicycle provided with a magnetic flux sensor with multiple magnetic blocks in nonuniform distribution in a shell, and the booster bicycle is driven by power and can provide booster signals by virtue of multiple-point position magnetic sensing. The sensor comprises a sensing element, a booster model processor, a digital-analog converter and an operational amplifier, wherein the sensing element comprises a rotating disc, a fixed disc, permanent magnetic blocks and a hall, wherein the permanent magnetic blocks and the hall are arranged in a hollow space formed by the embedding of the rotating disc and the fixed disc, a plurality of permanent magnetic blocks are opposite in the adjacent polarities and different in magnetic flux are arranged on the rotating disc, and the hall on the fixed disc is arranged at the position close to the permanent magnetic blocks. The sensor is arranged on a central shaft of a wheel of the bicycle, and the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that the permanent magnetic blocks and the hall are fixed relatively, the hall can obtain rectangular wave signals, the sensor can be used for outputting after the digital processing, a booster model is set artificially, the booster start point, the booster finishing point and the booster power are reasonable, so that a user and a machine can be best matched, and the power is saved.

Description

technical field

[0001] The invention belongs to the technical field of power-assisted bicycles, in particular to an electric power-assisted bicycle that performs multi-point magnetic induction on a rotating part to provide power-assisted signals. Background technique

[0002] The Chinese patent 201020295192.0 "Claw Type Torque Sensing Device" applied by Yebao Vehicle Material Industry (Kunshan) Co., Ltd. discloses a sensing device for power-assisted bicycles. The sensing device includes a magnetic part and an elastic part to sense the torque. sensing device. After a long time of use, the change of the elastic coefficient of the elastic member will lead to changes in the sensing signal and the control effect of the controlled motor, and the power-assisted effect will not match the power-assisted needs of people. Moreover, the design structure of the elastic member is complex and the manufacturing cost is high.

[0003] The Chinese patent 01201843.0 "Automatic Detection Devi...

Examples

Embodiment 1

[0120] Embodiment 1. A power-assisted bicycle with a multi-magnetic block unevenly distributed magnetic flux sensor in the housing

[0121] Such as figure 1 , 3 , 4, 6, the sensor among the present invention is installed on the central shaft 51 and the hub 52 of existing electric bicycle, the signal output line of sensor is connected with the motor controller 29 of electric bicycle, just obtains power-assisted bicycle of the present invention .

[0122] 1. The components and structure of the electric bicycle related to the installation of the sensor: the two ends of the central shaft 51 of the electric bicycle are fixedly connected with the frame 53 of the electric bicycle, the central shaft 51 is covered with a hub 52, and the hub 52 rotates outside the central shaft 51, and the hub 52 is fixedly connected with the wheel 54 of the bicycle, and the hub 52 rotates synchronously with the wheel 54; the battery 55 of the electric bicycle is connected with the motor controller 2...

Embodiment 2

[0145] Embodiment 2. High-density power-assisted bicycle with magnetic flux sensors distributed unevenly by multiple magnetic blocks in the housing

[0146] Such as figure 2 , 3 , 4, 6, the diameter of the annular groove rotating disk 1 in the hollow ring 41 is 10.0 centimeters, and 40 permanent magnet blocks 2 are established at the annular groove rotating disk 1, and the diameters of the 40 permanent magnet blocks 2 are respectively 0.6 centimeters, The magnetic flux is 146---279(B·H)max / KJ·m -3 Different selection values ​​within the range, and the magnetic flux of adjacent permanent magnet block 2 is not equal. Hall 3 keeps a distance of 0.2 cm from each permanent magnet 2 in the rotating state, so that when each rotating permanent magnet 2 passes through Hall 3, Hall 3 can generate a corresponding rectangular wave electric signal output. Other structures are the same as in Embodiment 1.

Embodiment 3

[0147] Embodiment 3, a power-assisted bicycle with a specific circuit and a magnetic flux sensor with uneven distribution of multiple magnetic blocks in the housing

[0148] Such as figure 1 , 3 , 5, 6, as in embodiment 1, the sensor includes a sensing element connected in sequence, a booster model processor 21, a digital-to-analog converter 27 and an operational amplifier 28;

[0149] [1] The Hall 3 in the sensing element is UGN3075; the structure of other elements and elements in the sensing element is the same as that in Embodiment 1;

[0150] [2] The auxiliary model processor 21 selects the single-chip microcomputer 31 to complete all functions, and the single-chip microcomputer 31 selects AT89S52. That is, the AT89S52 single-chip microcomputer 31 completes all functions of the analog-to-digital conversion and the wave peak recognizer 22, the power-assisted starting point selector 23, the magnet speed calculator 24, the power-assisted model memory 25 and the power-assis...

technical field

[0001] The invention belongs to the technical field of power-assisted bicycles, in particular to an electric power-assisted bicycle that performs multi-point magnetic induction on a rotating part to provide power-assisted signals. Background technique

[0002] The Chinese patent 201020295192.0 "Claw Type Torque Sensing Device" applied by Yebao Vehicle Material Industry (Kunshan) Co., Ltd. discloses a sensing device for power-assisted bicycles. The sensing device includes a magnetic part and an elastic part to sense the torque. sensing device. After a long time of use, the change of the elastic coefficient of the elastic member will lead to changes in the sensing signal and the control effect of the controlled motor, and the power-assisted effect will not match the power-assisted needs of people. Moreover, the design structure of the elastic member is complex and the manufacturing cost is high.

[0003] The Chinese patent 01201843.0 "Automatic Detection Devi...

Examples

Embodiment 1

[0120] Embodiment 1. A power-assisted bicycle with a multi-magnetic block unevenly distributed magnetic flux sensor in the housing

[0121] Such as figure 1 , 3 , 4, 6, the sensor among the present invention is installed on the central shaft 51 and the hub 52 of existing electric bicycle, the signal output line of sensor is connected with the motor controller 29 of electric bicycle, just obtains power-assisted bicycle of the present invention .

[0122] 1. The components and structure of the electric bicycle related to the installation of the sensor: the two ends of the central shaft 51 of the electric bicycle are fixedly connected with the frame 53 of the electric bicycle, the central shaft 51 is covered with a hub 52, and the hub 52 rotates outside the central shaft 51, and the hub 52 is fixedly connected with the wheel 54 of the bicycle, and the hub 52 rotates synchronously with the wheel 54; the battery 55 of the electric bicycle is connected with the motor controller 2...

Embodiment 2

[0145] Embodiment 2. High-density power-assisted bicycle with magnetic flux sensors distributed unevenly by multiple magnetic blocks in the housing

[0146] Such as figure 2 , 3 , 4, 6, the diameter of the annular groove rotating disk 1 in the hollow ring 41 is 10.0 centimeters, and 40 permanent magnet blocks 2 are established at the annular groove rotating disk 1, and the diameters of the 40 permanent magnet blocks 2 are respectively 0.6 centimeters, The magnetic flux is 146---279(B·H)max / KJ·m -3 Different selection values ​​within the range, and the magnetic flux of adjacent permanent magnet block 2 is not equal. Hall 3 keeps a distance of 0.2 cm from each permanent magnet 2 in the rotating state, so that when each rotating permanent magnet 2 passes through Hall 3, Hall 3 can generate a corresponding rectangular wave electric signal output. Other structures are the same as in Embodiment 1.

Embodiment 3

[0147] Embodiment 3, a power-assisted bicycle with a specific circuit and a magnetic flux sensor with uneven distribution of multiple magnetic blocks in the housing

[0148] Such as figure 1 , 3 , 5, 6, as in embodiment 1, the sensor includes a sensing element connected in sequence, a booster model processor 21, a digital-to-analog converter 27 and an operational amplifier 28;

[0149] [1] The Hall 3 in the sensing element is UGN3075; the structure of other elements and elements in the sensing element is the same as that in Embodiment 1;

[0150] [2] The auxiliary model processor 21 selects the single-chip microcomputer 31 to complete all functions, and the single-chip microcomputer 31 selects AT89S52. That is, the AT89S52 single-chip microcomputer 31 completes all functions of the analog-to-digital conversion and the wave peak recognizer 22, the power-assisted starting point selector 23, the magnet speed calculator 24, the power-assisted model memory 25 and the power-assis...

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