Booster bicycle provided with magnetic flux sensor with multiple magnetic blocks arranged on keyboard

Abstract

The invention discloses a booster bicycle provided with a magnetic flux sensor with multiple magnetic blocks arranged on a keyboard, 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 which are connected in sequence, wherein a plurality of permanent magnetic blocks with opposite adjacent magnetic polarities are fixedly arranged on a keyboard which is taken as the sensing element, the magnetic fluxes of the permanent magnetic blocks are different, a hall of the sensing element is arranged on a frame close to the permanent magnetic blocks, the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that the hall can obtain square wave signals, the sensor can be used for outputting after the digital processing, a booster model can be 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

[0111] Embodiment 1. A power-assisted bicycle with multi-magnetic blocks unevenly distributed magnetic flux sensors on the chain plate

[0112] Such as figure 1 , 3 , 4, 6,

[0113] 1. The components and structure of the electric bicycle related to the installation of the sensor: including the electric bicycle and the sensor, the chain plate 1 is fixed on the central axis 51 of the electric bicycle, the two ends of the central axis 51 are respectively fixed with pedals 54, and the central axis 51 is covered Sleeve 52 is arranged, and sleeve pipe 52 is fixedly connected with vehicle frame 53 of electric bicycle, and battery 55 on electric bicycle connects motor controller 29, and motor controller 29 connects the motor 30 on the wheel.

[0114] 2. The structure of the sensor and the connection relationship of the components are as follows:

[0115] The sensor includes a sensing element connected in sequence, a boost model processor 21, a digital-to-analog converter 27 and an...

Embodiment 2

[0132] Embodiment 2. A power-assisted bicycle with multi-magnetic blocks and unevenly distributed magnetic flux sensors on the high-density chain plate

[0133] Such as figure 2 , 3 , 4, 6, 40 permanent magnet blocks 2 with a diameter of 0.6 cm are set on one side of a chain disc 1 with a diameter of 10.0 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

[0134] Embodiment 3, a power-assisted bicycle with multi-magnetic blocks unevenly distributed magnetic flux sensors on the chain plate with a specific circuit

[0135] 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;

[0136] [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;

[0137] [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 peak recognizer 22, the power-assisted starting point selector 23, the magnetic block rotational speed calculator 24, the power-assisted model memory 25 and the pow...

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

[0111] Embodiment 1. A power-assisted bicycle with multi-magnetic blocks unevenly distributed magnetic flux sensors on the chain plate

[0112] Such as figure 1 , 3 , 4, 6,

[0113] 1. The components and structure of the electric bicycle related to the installation of the sensor: including the electric bicycle and the sensor, the chain plate 1 is fixed on the central axis 51 of the electric bicycle, the two ends of the central axis 51 are respectively fixed with pedals 54, and the central axis 51 is covered Sleeve 52 is arranged, and sleeve pipe 52 is fixedly connected with vehicle frame 53 of electric bicycle, and battery 55 on electric bicycle connects motor controller 29, and motor controller 29 connects the motor 30 on the wheel.

[0114] 2. The structure of the sensor and the connection relationship of the components are as follows:

[0115] The sensor includes a sensing element connected in sequence, a boost model processor 21, a digital-to-analog converter 27 and an...

Embodiment 2

[0132] Embodiment 2. A power-assisted bicycle with multi-magnetic blocks and unevenly distributed magnetic flux sensors on the high-density chain plate

[0133] Such as figure 2 , 3 , 4, 6, 40 permanent magnet blocks 2 with a diameter of 0.6 cm are set on one side of a chain disc 1 with a diameter of 10.0 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

[0134] Embodiment 3, a power-assisted bicycle with multi-magnetic blocks unevenly distributed magnetic flux sensors on the chain plate with a specific circuit

[0135] 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;

[0136] [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;

[0137] [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 peak recognizer 22, the power-assisted starting point selector 23, the magnetic block rotational speed calculator 24, the power-assisted model memory 25 and the pow...

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