Power assisting bicycle with adjustable magnet block position sensor on flywheel
A technology of power-assisted bicycles and sensors, which is applied in the direction of transmitting sensing components, vehicle components, and rider drives by using electric/magnetic devices.
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Embodiment 1
[0127] Embodiment 1. A power-assisted bicycle with an adjustable magnetic block position sensor on the flywheel
[0128] Such as figure 1 , 3 , 4, 6,
[0129] 1. The components and structure of the electric bicycle related to the installation of the sensor: including the electric bicycle and the sensor, the rear wheel of the electric bicycle has a flywheel 1, the electric bicycle has a frame 53, the battery 55 on the electric bicycle is connected to the motor controller 29, and the motor controller 29 connect the motor 30 on the wheel;
[0130] 2. The structure of the sensor and the connection relationship of the components are as follows:
[0131] The sensor includes a sensing element connected in sequence, a boost model processor 21, a digital-to-analog converter 27 and an operational amplifier 28;
[0132] [1] The sensing element is an element that converts the rotational motion of the flywheel 1 into a rectangular wave signal output;
[0133] The sensing element is t...
Embodiment 2
[0152] Embodiment 2, a power-assisted bicycle with an adjustable magnetic block position sensor on the high-density flywheel
[0153] Such as figure 2 , 3 , 4, 6, 40 permanent magnet blocks 2 with a diameter of 0.6 cm are arranged on one surface of a flywheel 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 A certain value, Hall 3 keeps a distance of 0.2 cm from each permanent magnet block 2 in the rotating state, so that when each rotating permanent magnet block 2 passes through Hall 3, Hall 3 can generate a corresponding Rectangular wave signal output. Other structures are the same as in Embodiment 1.
Embodiment 3
[0154] Embodiment 3, a power-assisted bicycle with an adjustable magnetic block position sensor on the flywheel with a specific circuit
[0155] 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;
[0156] [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;
[0157] [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 identifier 22 , the power-assisted starting point selector 23 , the magnet speed calculator 24 , the power-assisted model memory 25 and the power-assisted model calculator 26 ....
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