Electric bicycle and control method thereof
A technology of electric bicycle and control method, applied in the directions of vehicle components, rider drive, transportation and packaging, can solve the problem of single control method and achieve the effect of fast moving speed
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Embodiment 1
[0028] see figure 1 , the present embodiment provides an electric bicycle, which includes a central shaft 11, two cranks 12 connected to the central shaft 11, a rear wheel 13, a motor 14 for driving the rear wheel 13 to rotate, a Rotation sensor 15, a processing chip 16, a resistance device 17, a speed control handle and a switch.
[0029] One end of the crank 12 is connected to the central shaft 11 , and the other end is connected to the pedal 121 . The crank 12 is driven to rotate by the user's legs, and the rotation of the crank 12 drives the rotation of the central shaft 11 . In this embodiment, the central shaft 11 is not directly connected to the rear wheel, that is to say, when the electric bicycle is not powered on, the user cannot make the electric bicycle move forward by turning the crank 12 .
[0030] The rotation sensor 15 includes a first copper ring 151 , a second copper ring 152 , a wire frame 153 , two brushes 154 , a current detection device 155 and two magne...
Embodiment 2
[0046] The difference between this embodiment and embodiment 1 is only:
[0047] see figure 2 , the rotation sensor 15 includes two sets of copper rings 151 , two wire frames 153 , two sets of brushes 154 , a current detection device 155 and three sets of magnetic poles 156 .
[0048] One end of the crank 12 is connected to the central shaft 11 , and the other end is connected to the pedal 121 . The crank 12 is driven to rotate by the user's legs, and the rotation of the crank 12 drives the rotation of the central shaft 11 .
[0049] The wire frames each include two metal rods and a conductor connecting one end of the two metal rods, the four metal rods of the two wire frames are on the same plane and are perpendicular to the central axis 11, any two adjacent two The angle between the metal rods is 90 degrees.
[0050] The other ends of the two metal rods are respectively connected to two copper rings in a group, and each group of brushes is in contact with a group of coppe...
Embodiment 3
[0056] The electric bicycle of the present embodiment is basically the same as Embodiment 1, and the difference only lies in:
[0057] The rotation sensor includes a two-degree-of-freedom gyro device, the outer ring of the gyroscope is arranged in the crank, the inner ring of the gyroscope is perpendicular to the axis of the central axis, and the gyroscope is used to detect the The rotation speed of the crank, and the processing chip is used to control the motor according to the rotation speed to drive the rear wheel to rotate.
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