CN210338196U - Pedal torque control device of electric bicycle - Google Patents
Pedal torque control device of electric bicycle Download PDFInfo
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- CN210338196U CN210338196U CN201921447436.XU CN201921447436U CN210338196U CN 210338196 U CN210338196 U CN 210338196U CN 201921447436 U CN201921447436 U CN 201921447436U CN 210338196 U CN210338196 U CN 210338196U
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- electric bicycle
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- magnetic ring
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Abstract
The utility model discloses an electric bicycle pedal torque control device, include controller and battery through the connection of electric lines, the controller passes through the electric wire to be connected its characterized in that with electric bicycle's motor: the pedal torque control device of the electric bicycle further comprises a multi-pole magnetic ring which synchronously rotates along with a chain wheel of the electric bicycle and a Hall sensor which is arranged close to the multi-pole magnetic ring in a matched mode, the position of the Hall sensor is fixed, and the Hall sensor is connected with the controller through a data line to establish signal communication; the CPU of the controller is filled with a control program, the control program can judge the pedal force of a rider according to the interval time of two Hall pulse signals and control the corresponding motor running speed to realize pedal torque control, the structure is simple, the production cost is low, and the problems of large quantity of parts and complex structure of the existing torque sensor of the electric bicycle are solved.
Description
Technical Field
The utility model belongs to electric bicycle part field especially with a pedal torque control device of electric bicycle.
Background
The electric bicycle is a mechatronic personal transportation tool which takes a storage battery as auxiliary energy and is provided with a motor, a controller, the storage battery, a rotating handle brake handle and other operating components and a display instrument system on the basis of a common bicycle. The motor drives the wheel to rotate. The controller is the core of an electric system of the electric vehicle, is a core component for energy management and various control signal processing of the electric vehicle, is connected with the motor through a wire to control the operation of the motor, and has the functions of undervoltage, current limiting or overcurrent protection. The power-assisted (torque) sensor is a device for detecting a pedaling force return pedal speed signal when the electric vehicle is in a power-assisted state. The controller is according to electric drive power to reach manpower and electric power automatic matching, drive the electric motor car rotation jointly. The storage battery is connected with the controller through an electric wire and provides operation electric energy of the whole electric system such as the motor, the controller and the torque sensor. The torque sensor of last installation of current electric bicycle is installed on electric bicycle's axis more, uses the foil gage to detect the deformation of axis and come perception people's pedal moment, and some need make dedicated frame even, spare part is many, the structure is complicated, leads to high in production cost, higher to installation debugging technical requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose aims at solving the defect that current electric bicycle torque sensor spare part is in large quantity, the structure is complicated, provides a lower pedal torque control device of electric bicycle of simple structure, cost.
Therefore, the utility model adopts the following technical scheme: the utility model provides an electric bicycle pedal torque control device, includes controller and battery through the connection of electric lines, the controller passes through the electric wire to be connected with electric bicycle's motor, characterized by: the pedal torque control device of the electric bicycle further comprises a multi-pole magnetic ring which synchronously rotates along with a chain wheel of the electric bicycle and a Hall sensor which is arranged close to the multi-pole magnetic ring in a matched mode, the position of the Hall sensor is fixed, Hall pulse signals are generated by sensing magnetic poles of the multi-pole magnetic ring, and the Hall sensor is connected with the controller through a data line to establish signal communication; the Central Processing Unit (CPU) of the controller is filled with a control program, and the control program can judge the pedal force of a rider according to the interval time of two Hall pulse signals and control the corresponding motor running speed according to the pedal force so as to realize the riding assistance.
When the utility model is used, the multi-pole magnetic ring rotates along with the chain wheel of the electric bicycle. When the multi-pole magnetic ring rotates, the Hall sensor induces each magnetic pole passing by the multi-pole magnetic ring one by one to generate a Hall pulse signal. The people can be by the rotation with higher speed of quiescent condition gradually when pedal electric bicycle rides hard, the acceleration of the big rotation of pedal power is just big, the acceleration of the little rotation of pedal power is just little, based on this principle, hall sensor calculates the interval time between two hall pulse signal around with hall pulse signal sends the CPU of controller, detect the size of pedal power according to interval time, thereby come the corresponding output of control motor according to the size of pedal power, reach the helping hand effect the same with current electric bicycle who uses torque sensor. When the pedaling force is large, the interval time of the next Hall pulse signal is shortened compared with the interval time of the previous pulse signal, namely, the interval shortening proportion of the two Hall pulse signals before and after the pedaling force is large, the interval shortening proportion of the two Hall pulse signals before and after the pedaling force is small, and the interval time of the Hall pulse signals cannot be shortened if the Hall pulse signals are not pedaled with force. The motor output power is high when the human pedaling force is high, the motor output power is low when the human pedaling force is low, and the human does not rotate when not pedaling the motor.
As the supplement and improvement to the technical proposal, the utility model also comprises the following technical characteristics.
The multi-pole magnetic ring is arranged on a middle shaft or a hub of the electric bicycle.
The magnetizing direction of the multi-pole magnetic ring can be radial or axial.
The utility model discloses following beneficial effect can be reached: the electric bicycle is characterized in that a Hall sensor is matched with a multi-pole magnetic ring which synchronously rotates along with an electric bicycle chain wheel, a magnetic pole of the multi-pole magnetic ring is induced to generate Hall pulse signals, the pedal force of a rider is judged according to the interval time of the front Hall pulse signal and the rear Hall pulse signal, and the corresponding motor running speed is controlled according to the pedal force to realize the pedal torque control of the riding assistance.
Drawings
Fig. 1 is a schematic view of the structural principle of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are used for illustration and explanation of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, the utility model discloses a controller 5, battery 3, multipolar magnetic ring 1 and hall sensor 2, controller 5 and battery 5 adopt controller and battery that current electric bicycle is commonly used, it has control program to fill on the CPU of controller, contain on this control program and judge the size of riding passerby's pedal power and control corresponding motor running speed's program module in view of the above according to two hall pulse signal's interval time around, controller 3 and battery 5 through the connection of electric lines, controller 3 is connected with electric bicycle's motor 4 through the electric wire. The magnetizing direction of the multi-pole magnetic ring 1 is radial, and the multi-pole magnetic ring 1 is arranged on a middle shaft of the electric bicycle and synchronously rotates along with a chain wheel of the electric bicycle. The Hall sensor 2 is fixedly arranged on a frame of the electric bicycle, is arranged close to the multipole magnetic ring in a radial direction in a matching way, and generates a Hall pulse signal by sensing each magnetic pole of the multipole magnetic ring. The Hall sensor 2 is connected with the controller 3 through a data line to establish signal communication.
As another embodiment, the magnetizing direction of the multi-pole magnetic ring 1 is axial, the multi-pole magnetic ring 1 is installed on the hub of the battery bicycle, and the hall sensor 2 is fixedly installed on the frame and is axially close to and paired with the multi-pole magnetic ring 1.
Claims (3)
1. The utility model provides an electric bicycle pedal moment controlling means, includes controller and battery through the connection of electric lines, the controller passes through the electric wire to be connected with electric bicycle's motor, its characterized in that: the pedal torque control device of the electric bicycle further comprises a multi-pole magnetic ring which synchronously rotates along with a chain wheel of the electric bicycle and a Hall sensor which is arranged close to the multi-pole magnetic ring in a matched mode, the position of the Hall sensor is fixed, and the Hall sensor is connected with the controller through a data line to establish signal communication; the CPU of the controller is filled with a control program which can judge the pedal force of a rider according to the interval time of the front Hall pulse signal and the rear Hall pulse signal and control the corresponding motor running speed according to the pedal force.
2. The pedal torque control apparatus for an electric bicycle according to claim 1, wherein: the multi-pole magnetic ring is arranged on a middle shaft or a hub of the electric bicycle.
3. An electric bicycle pedaling torque control apparatus according to claim 1 or 2, wherein: the magnetizing direction of the multi-pole magnetic ring is radial or axial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447436.XU CN210338196U (en) | 2019-09-02 | 2019-09-02 | Pedal torque control device of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447436.XU CN210338196U (en) | 2019-09-02 | 2019-09-02 | Pedal torque control device of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210338196U true CN210338196U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921447436.XU Active CN210338196U (en) | 2019-09-02 | 2019-09-02 | Pedal torque control device of electric bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN210338196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422268A (en) * | 2019-09-02 | 2019-11-08 | 浙江超级电气科技有限公司 | A kind of electric bicycle pedal moment control device |
-
2019
- 2019-09-02 CN CN201921447436.XU patent/CN210338196U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422268A (en) * | 2019-09-02 | 2019-11-08 | 浙江超级电气科技有限公司 | A kind of electric bicycle pedal moment control device |
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