Booster bicycle provided with rotary table type sensor provided with magnetic blocks with adjustable positions and magnetic fluxes

Abstract

The invention relates to a booster bicycle provided with a rotary table type sensor provided with a plurality of magnetic blocks with adjustable positions and magnetic fluxes, and in particular relates to an electric booster bicycle used for providing booster signals for a plurality of point positions in a way of magnetic induction. The sensor comprises a sensing element, a booster model processor, a digital / analog (D / A) converter and an operational amplifier which are sequentially connected, wherein a rotary table of the sensing element is fixedly provided with the plurality of permanent magnet blocks, and every two adjacent permanent magnet blocks have the opposite magnetic polarities; the gaps among the permanent magnet blocks can be adjusted, and the positions of the magnet blocks with different magnetic fluxes can be adjusted; the rotary table is arranged on the central shaft of each wheel of the bicycle; a Hall of the sensing element is arranged on a frame close to the permanent magnet blocks; and the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that square-wave signals can be obtained by the Hall, the sensor can conveniently use an artificial set booster model through digital processing output, the booster model is adjusted to be reasonable in boosting starting point, finishing point and force, human can cooperate with a machine in a best way, and the electricity 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

[0135] Embodiment 1. A power-assisted bicycle equipped with multi-magnet position and magnetic flux adjustable turntable sensors

[0136] Such as figure 1 , 3 , 4, 6,

[0137] 1. The components and structure of the electric bicycle related to the installation of the sensor: the two ends of the central axis 51 of the wheel of the electric bicycle are fixedly connected with the frame 53 of the electric bicycle, and the central axis 51 is covered with a hub 52 with a sleeve, and the hub 52 with a sleeve is on the central axis 51 external rotation, the hub 52 with a cover is fixedly connected with the wheel 54 of the bicycle, and the hub 52 with a cover rotates synchronously with the wheel 54; the battery 55 of the electric bicycle is connected to the motor controller 29, and the motor controller 29 is connected to the motor 30 on the wheel;

[0138] 2. The structure of the sensor and the connection relationship of the components are as follows:

[0139] [1] The sensing elemen...

Embodiment 2

[0160] Embodiment 2, a power-assisted bicycle with adjustable turntable sensors in high-density multi-magnet position and magnetic flux

[0161] Such as figure 2 , 3 , 4, 6, one surface of a high-strength aluminum rotating disk 1 with a diameter of 10.0 cm is provided with 40 permanent magnet blocks 2 with a diameter of 0.6 cm. The magnetic flux of the permanent magnet block 2 is 146---279 (B·H)max / KJ·m -3 Different selection values ​​within the range, and the magnetic flux of the adjacent permanent magnet block 2 is not equal, Hall 3 keeps a distance of 0.2 cm from each permanent magnet block 2 in the rotating state, so that each permanent magnet block 2 that is rotating Hall 3, Hall 3 can generate a corresponding rectangular wave signal output. Other structures are the same as in Embodiment 1.

Embodiment 3

[0162] Embodiment 3, a power-assisted bicycle equipped with a turntable sensor with multiple magnetic block positions and magnetic fluxes with a specific circuit

[0163] 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;

[0164] [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;

[0165] [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 width peak recognizer 22 , the power-assisted starting point selector 23 , the magnet speed calculator 24 , the power-assisted model memory 25 and the power...

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

[0135] Embodiment 1. A power-assisted bicycle equipped with multi-magnet position and magnetic flux adjustable turntable sensors

[0136] Such as figure 1 , 3 , 4, 6,

[0137] 1. The components and structure of the electric bicycle related to the installation of the sensor: the two ends of the central axis 51 of the wheel of the electric bicycle are fixedly connected with the frame 53 of the electric bicycle, and the central axis 51 is covered with a hub 52 with a sleeve, and the hub 52 with a sleeve is on the central axis 51 external rotation, the hub 52 with a cover is fixedly connected with the wheel 54 of the bicycle, and the hub 52 with a cover rotates synchronously with the wheel 54; the battery 55 of the electric bicycle is connected to the motor controller 29, and the motor controller 29 is connected to the motor 30 on the wheel;

[0138] 2. The structure of the sensor and the connection relationship of the components are as follows:

[0139] [1] The sensing elemen...

Embodiment 2

[0160] Embodiment 2, a power-assisted bicycle with adjustable turntable sensors in high-density multi-magnet position and magnetic flux

[0161] Such as figure 2 , 3 , 4, 6, one surface of a high-strength aluminum rotating disk 1 with a diameter of 10.0 cm is provided with 40 permanent magnet blocks 2 with a diameter of 0.6 cm. The magnetic flux of the permanent magnet block 2 is 146---279 (B·H)max / KJ·m -3 Different selection values ​​within the range, and the magnetic flux of the adjacent permanent magnet block 2 is not equal, Hall 3 keeps a distance of 0.2 cm from each permanent magnet block 2 in the rotating state, so that each permanent magnet block 2 that is rotating Hall 3, Hall 3 can generate a corresponding rectangular wave signal output. Other structures are the same as in Embodiment 1.

Embodiment 3

[0162] Embodiment 3, a power-assisted bicycle equipped with a turntable sensor with multiple magnetic block positions and magnetic fluxes with a specific circuit

[0163] 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;

[0164] [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;

[0165] [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 width peak recognizer 22 , the power-assisted starting point selector 23 , the magnet speed calculator 24 , the power-assisted model memory 25 and the power...

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