Centrally mounted driving motor system used for mopeds and mopeds

Abstract

The invention discloses a centrally mounted driving motor system used for mopeds such as a motor bicycle and a motor tricycle. The centrally mounted driving motor system includes a multifunctional central shaft, a stator bracket, an end cover, a stator, a rotor, a shearing torque sensor and a controller; the stator bracket is coaxially arranged with the multifunctional central shaft; the stator isinstalled on one side of the stator bracket and comprises a stator winding; the rotor is coaxially arranged with the multifunctional central shaft; the whole shearing torque sensor is tubular and isa magnetostriction-type torque sensor which is internally provided with a winding arranged in the circumferential direction, and the shearing torque sensor and the multifunctional central shaft are coaxially arranged at an interval, wherein the shearing torque sensor is used for detecting the torque of the multifunctional central shaft. The controller can process information transmitted by the shearing torque transducer sensor to obtain a moped control signal for controlling the stator winding to obtain electric quantity, and control the motor rotor to work and stop all the time.

Description

Technical field [0001] The present invention relates to the technical field of power-assisted bicycles, in particular to a centrally-mounted drive motor system for power-assisted bicycles used for power-assisted bicycles, power-assisted tricycles and other power-assisted vehicles. Background technique [0002] Due to the convenience of use, power-assisted bicycles and other mopeds have begun to be used in people's lives. However, the torque sensors currently used in the drive motors of power-assisted vehicles often have one or the other shortcomings and cannot provide real torque information, thus failing to achieve a good assist effect; for example, the currently used pure steel deformation torque sensors have rigid weaknesses As well as the feeling of pedaling in the second force and the intermittent power assistance at low speeds; another type of compression reed torque sensor has extrusion deformation, and the lateral pressure is embedded with unreal pressure and torque infor...

AI Technical Summary

Problems solved by technology

However, the torque sensors currently used in the drive motors of mopeds often have one or another shortcoming and cannot provide real torque information, and thus cannot achieve a good boosting effect; for example, the pure steel deformation torque sensors currently used have rigid weaknesses. As well as the feeling of stepping on the air of the second force and the intermittent power assist at low speeds; another type of pressure reed torque sensor is squeezed and deformed, and the lateral pressure is embedded with unreal pressure and torque information, which cannot restore the accumulated calculation of the real force of human stepping Stress data, assisting cyclists gives wrong information and doesn't work linearly

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