TWI615175B - Resistance device and high-precision power generation resistance device with torque sensing - Google Patents

Description

Resistance device and high-precision power generation resistance device with torque sensing

The present invention relates to a power generation resistance device, and more particularly to a high-precision power generation resistance device for torque sensing of a pedal-type sports car.

Traditional fitness equipment, such as exercise bikes, mainly include a frame, a pedal and a flywheel. The flywheel includes a stationary portion (such as a stator of a flywheel) and a rotating portion (such as a rotor of a flywheel), wherein the stator is fixed to the frame. Further, the pedal is coupled to the flywheel through the transmission mechanism, whereby when the user (the athlete) steps on the pedal on the exercise vehicle, the transmission mechanism rotates the rotor that drives the flywheel relative to the stationary stationary frame. In order to allow the user to withstand the appropriate resistance or resistance when pedaling, the adjustment of the resistance of the exercise bike is usually provided by controlling the magnetic resistance, so that the user can achieve the pedaling action against different resistance or resistance. The effect of exercise and fitness.

In addition, a sensor (for example, a strain gauge) for detecting the amount of torque and a power board are usually installed on the flywheel of the exercise bicycle, and a display device is usually provided on the frame of the exercise bicycle. The strain gauge can be disposed on the rotor of the flywheel, and the power board is disposed on the stator of the flywheel. Therefore, when the power board supplies power to the sensor, it is required to use a carbon brush element as a medium for power transmission, whereby the sensor (strain gauge) located on the rotor can be received through the connection of the carbon brush element. Power is supplied to the power board by the stator. The strain gauge is configured to detect a torque strain when the flywheel rotates, convert it into an electrical signal (for example, a voltage signal), and amplify the voltage signal, and then transmit the amplified voltage signal to the display device for calculation. And display the torque.

Although the use of the carbon brush element enables the sensor (strain gauge) to receive the power supply of the power board to operate normally, however, since the carbon brush element is easily worn out and an electrical spark is generated, it is necessary to maintain the carbon brush element, The cost, cost and environmental protection of the carbon brush component wear and tear, and the resulting electrical sparks are disturbing, which may cause noise transmission of signals, and even electrical sparks cause safety problems.

One of the aims of the present invention is to provide a high-precision power generation resistance device with torque sensing, which improves the carbon brush components used between the torque sensor and the power board, resulting in cost, cost and environmental problems, and interference with signal transmission. Electrical sparks cause safety problems.

In order to achieve the foregoing, the present invention proposes the high-precision power generation resistance device with torque sensing, which is applied to a pedal sport utility vehicle, which includes a frame and a flywheel, and the flywheel includes a rotor and a stator fixed to the frame. The torque sensing high precision power generation resistance device comprises a circuit board, a plurality of torque sensing units, a data processing wireless transmitting unit, a control unit and a wireless receiving device. The circuit board is disposed on the rotor. The torque sensing units are electrically connected to the circuit board. The data processing wireless transmitting unit is disposed on the circuit board and connected to the torque sensing units to wirelessly transmit the torque information and the motion information sensed by the torque sensing units. The control unit controls the resistance of the pedal sport utility vehicle. The wireless receiving device receives torque information and motion information from the data processing wireless transmitting unit.

The high-precision power generation resistance device with torque sensing can directly supply the torque sensing unit without using a carbon brush component, thereby eliminating the cost and cost of maintenance and wear damage of the carbon brush component. Furthermore, the electrical spark generated by the use of the carbon brush element is avoided, which improves the accuracy of signal transmission and increases the safety of operation.

The purpose of this creation is to provide a high-precision power generation resistance device with torque sensing, which improves the carbon brush components used between the torque sensor and the power board, resulting in cost, cost and environmental problems as well as signal transmission interference and even electrical Sparks cause safety problems.

In order to achieve the foregoing, the present invention proposes the high-precision power generation resistance device with torque sensing, which is applied to a pedal sport utility vehicle, which includes a frame and a flywheel, and the flywheel includes a rotor and a stator fixed to the frame. The torque sensing high precision power generation resistance device comprises a power generating unit, a plurality of torque sensing units, a data processing wireless transmitting unit, a brake control unit and a wireless receiving device. The power generating unit includes a circuit board and a power module. The circuit board is disposed on the rotor. The power module includes at least one magnetic component and a plurality of power generating coils. The at least one magnetic element is disposed on the stator. The power generating coils are disposed on the circuit board and are located at positions corresponding to the at least one magnetic component. When the rotor of the flywheel rotates, the power generating coils move relative to the at least one magnetic component to generate an operating power source. The torque sensing units are electrically connected to the circuit board to receive the working power. The data processing wireless transmitting unit is disposed on the circuit board and connected to the torque sensing units to wirelessly transmit the torque information and the motion information sensed by the torque sensing units. The brake control unit controls the resistance of the pedal sport utility vehicle. The wireless receiving device receives torque information and motion information from the data processing wireless transmitting unit.

The high-precision power generation resistance device with torque sensing can directly supply the torque sensing unit without using a carbon brush component, thereby eliminating the cost and cost of maintenance and wear damage of the carbon brush component. Furthermore, the electrical spark generated by the use of the carbon brush element is avoided, which improves the accuracy of signal transmission and increases the safety of operation.

In order to further understand the techniques, means and effects of this creation in order to achieve the intended purpose, please refer to the following detailed description and drawings of this creation. I believe that the purpose, characteristics and characteristics of this creation can be obtained in this way. The detailed description is to be understood as merely illustrative and not restrictive

20‧‧‧Power Module

21‧‧‧Magnetic components

22‧‧‧Power coil

23‧‧‧Power rectifier circuit

30‧‧‧ boards

12‧‧‧Auxiliary power generation coil

200‧‧‧Power generation resistance brake control unit

41‧‧‧Electronic control instrument

42‧‧‧Control unit

50‧‧‧Torque sensing unit

60‧‧‧ flywheel

61‧‧‧Aluminum body

62‧‧‧ cast iron body

70‧‧‧ brakes

Vac1‧‧‧ working power supply

Vdc1‧‧‧DC working power supply

Scn‧‧‧Brake resistance signal

Vcn‧‧‧ brake control signal

Figure 1: This is a block diagram of the circuit of a power module.

Figure 2: Block diagram of a power generation resistance brake control unit and a brake device.

3 is a perspective view of a flywheel of one of the first embodiments of the present invention.

4A is a perspective view of a flywheel of a second embodiment of the present invention.

4B is an exploded view of the flywheel of the second embodiment of the present pedal sports car.

4C is a perspective view of the flywheel of the second embodiment of the present invention in cooperation with a brake device.

Fig. 5A is a perspective view of a flywheel of a third embodiment of the present invention.

Fig. 5B is an exploded view of the flywheel of the third embodiment of the present invention.

Fig. 5C is a plan view showing another embodiment of a power generating coil of a third embodiment of the present invention.

Fig. 5D is a plan view showing still another embodiment of the power generating coil of the third embodiment of the present invention.

Fig. 5E is an exploded view of the flywheel of the fourth embodiment of the present invention.

6A is a perspective view of an embodiment of the flywheel of the third embodiment of the present invention in cooperation with a brake device.

6B is a perspective view of another embodiment of the flywheel of the third embodiment of the present invention in cooperation with the brake device.

The technical content and detailed description of this creation are as follows.

The present invention discloses a high-precision power generation resistance device with torque sensing, wherein the pedal sport vehicle can be an exercise bike, a rower machine, a bicycle trainer, and a magnetic control device. Any of a magnetic control exercise bike or a spinning bike, but not limited thereto. Each of the above-mentioned pedal sports vehicles mainly comprises a frame, a pedal, a flywheel and a power generation resistance brake control unit. The flywheel includes a rotor (rotatable mechanism) and a stator (stationary mechanism) fixed to the frame, and the pedal is coupled to the flywheel through a transmission mechanism. When the user steps on the foot pedal of the sports car, the transmission mechanism rotates the rotor that drives the flywheel relative to the frame, and controls the brake circuit of the flywheel by operating the power generation resistance brake control unit. Provide resistance to achieve the effect of exercise and fitness.

The circuit structure of the high-precision power generation resistance device with torque sensing of the pedal sports vehicle mainly comprises a power generation unit, a power generation resistance brake control unit, a plurality of torque sensing units and a data processing wireless transmitting unit. The user controls the braking device to provide resistance to the rotor of the flywheel through the power generation resistance brake control unit. The principle and operation of the circuit architecture will be described in detail later.

As shown in FIG. 1 , a power module 20 provided by the present invention includes a magnetic component 21 , a plurality of power generating coils 22 , and a power generating rectifier circuit 23 . The magnetic component 21 is disposed on the stator of the flywheel, and the power generating coils 22 are disposed on a circuit board 30 (see FIG. 3 for cooperation). The magnetic element 21 can be a permanent magnet according to the needs of practical applications.

The position of the power generating coil 22 corresponds to the position of the magnetic element 21. When the user steps on the moving vehicle to rotate the rotor of the flywheel, the power generating coil 22 and the magnetic element 21 move relative to each other, so according to the electromagnetic induction In principle, the work performed by the relative movement of the power generating coil 22 and the magnetic element 21 is converted into electrical energy, and an induced current is generated at the power generating coil 22 to provide a working power supply Vac1, wherein the operating power supply Vac1 is an alternating current power source. In the present creation, the magnetic element 21 is disposed in The stator and the power generating coils 22 are disposed on the circuit board 30. Thereby, the power generating coil 22 is relatively moved with the magnetic element 21 to cut the magnetic lines of force, thereby generating an induced current.

The power generation rectifier circuit 23 can be any one of a half wave, a full wave or a bridge rectifier circuit, but is not limited thereto. The power generation rectifier circuit 23 is electrically connected to the circuit board 30 to receive the working power supply Vac1 generated by the power generating coil 22, and the working power supply Vac1 for converting the alternating current power source is one of the direct current power sources of the direct current power supply Vdc1.

As shown in FIG. 2, the present creation provides a power generation resistance brake control unit 200. The power generation resistance brake control unit 200 includes an electronic control meter 41 and a control unit 42. The electronic control instrument 41 is a human-machine interface device that interacts with the user of the sports car. The user can adjust the input information through the electronic control instrument 41 or obtain the output information of the motion state by the electronic control instrument 41. In the present embodiment, the user controls the magnitude of the braking resistance to be applied to the flywheel through the electronic control meter 41, that is, controls the amount of load when the user steps on the sports car.

The control unit 42 is electrically connected to the electronic control unit 41, and the electronic control unit 41 and the control unit 42 provide the electronic control unit 41, the control unit 42 and the power supply required by the brake unit 70 through another working power source. . When the user adjusts the magnitude of the braking resistance to be applied to the flywheel through the electronic control meter 41, the electronic control meter 41 provides a braking resistance signal Scn to the control unit 42 so that the control unit 42 is intended to be applied by the user. The braking resistance of the flywheel is controlled to control the torque of the pedal sport utility vehicle. Then, the control unit 42 generates a brake control signal Vcn according to the braking resistance signal Scn to the braking device 70 to control the resistance of the flywheel in a manner of providing magnetic resistance, liquid resistance, wind resistance, and frictional resistance. The size, the operation of braking resistance of the flywheel. Specifically, when the control unit 42 generates the brake control signal Vcn to provide the braking device 70 to perform the braking resistance operation, it is generally transmitted through a driving circuit (not shown) inside the control unit 42 according to the braking control signal Vcn. The brake device 70 is driven to achieve a braking resistance operation to control the torque of the pedal sport utility vehicle.

Furthermore, the high-precision power generation resistance device with torque sensing further includes a plurality of torsion sensing units 50 (see FIG. 3 for cooperation). The torque sensing unit 50 is electrically connected to the circuit board 30 by a data processing wireless transmitting unit to receive the working power supply Vac1 or the rectified DC working power source Vdc1 to supply power thereto, thereby sensing the flywheel. The amount of torque when the rotor rotates. In the present invention, each of the torque sensing units 50 is a load cell sensor or a strain gauge sensor, which is not limited thereto. The application description of the torque sensing unit 50 will be described in detail later. In addition, the data processing wireless transmitting unit is simultaneously connected to the torque sensing units 50 to wirelessly transmit the torque information and motion information sensed by the torque sensing units 50.

In summary, the working power supply Vac1 or the DC working power supply Vdc1 generated by the power module 20 is used to provide the power required by the torque sensing unit 50, the circuit board 30, and the wireless transmitting unit. The working power supply Vac1 or the DC working power supply Vdc1 can further provide the power required for the rechargeable battery and the data wireless transmitting unit. The high-precision power generation resistance device with torque sensing further includes a wireless receiving device, wherein the wireless receiving device is a wireless receiving unit on the electronic control meter 41 or a wireless receiving unit on the personal portable device. Therefore, the data wireless transmitting unit transmits the torque information to the wireless receiving unit on the electronic control meter 41 or to the personal portable device, such as the wireless receiving unit on a mobile phone.

Referring to FIG. 3, it is a perspective view of a flywheel of a first embodiment of the present invention. The pedal sport utility vehicle is an exercise bike. Microscopically, when the belt drives the rotor of the flywheel to rotate, the flywheel will be distorted due to the torque. The conventional technology uses a flywheel made of completely cast iron. Due to the high rigidity of the cast iron, once the belt drives the flywheel of the cast iron to rotate, the distortion will occur, which will result in irreversible deformation. Therefore, the sensor installed to detect the torque will not correctly detect the torque of the flywheel.

Compared with the flywheel made of cast iron in the prior art, the foot pedal sports car adopts a flywheel 60 with an aluminum alloy material which has a reversible shape, that is, a resilience characteristic. Again, in order The weight feeling of the user when stepping on is increased, and the flywheel 60 also provides a part of the cast iron material, so that the flywheel 60 has both the pedaling motion effect and the high precision torque sensing. The structure of the flywheel 60 has a first body and a second body. In this embodiment, the rotor of the flywheel 60 includes an aluminum alloy body 61 as the first body, and a cast iron body 62 as the second body. In another embodiment, the first body and the second system of the flywheel 60 are both an aluminum alloy body. In still another embodiment, the first body of the flywheel 60 and the second system are integrally formed aluminum alloy bodies.

As described above, the circuit board 30 provided in this embodiment is a disc structure, and the circuit board 30 is locked to the rotor of the flywheel 60. Therefore, once the rotor of the flywheel 60 rotates, the circuit board The 30 series rotates at the same time. A plurality of power generating coils 22 are disposed on the circuit board 30. In the present embodiment, the number of the power generating coils 22 is four, and is disposed at a spatial angular interval of 90 degrees.

As described above, the pedal sports vehicle provides a permanent magnet as a magnetic element 21 in the stator of the flywheel 60 to generate electromagnetic induction with an auxiliary power generating coil 12 to generate electricity. The magnetic coil 21 is a stationary member with respect to the flywheel 60, the circuit board 30, and the power generating coils 22 provided on the circuit board 30. Thereby, when the user steps on the sports car to rotate the rotor of the flywheel 60, the magnetic element 21 moves relative to the power generating coils 22 to generate the working power supply Vac1. For the contents of the circuit description, please refer to FIG. 1 and the corresponding descriptions, and details are not described herein again.

Furthermore, the pedal sports vehicle further provides a plurality of torque sensing units 50, wherein the torque sensing units 50 are electrically connected to the circuit board 30 to receive the working power supply Vac1 or the rectified DC operation. The power supply Vdc1 supplies power to it. Taking the embodiment shown in FIG. 3 as an example, the aluminum alloy body 61 of the flywheel 60 is provided with a plurality of circular grooves. In one embodiment of the present invention, the circular grooves are respectively formed in pairs on a top surface and a lower surface of the aluminum alloy body 61. Specifically, the front and back surfaces of the aluminum alloy body 61, that is, the upper surface and the lower surface are respectively provided with four circular grooves to form eight circular grooves, and therefore, corresponding to each circular concave A torque sensing unit 50 is respectively installed in the slot. That is, in the embodiment, the pedal sports vehicle provides eight torque sensing units. 50, and the two torsion sensing units 50 on the front and the back sides form a set of torque sensing unit groups. In another embodiment, the grooves are respectively formed in pairs on the upper surface of the aluminum alloy body 61. Or in another embodiment, the grooves are respectively formed in pairs on the lower surface of the aluminum alloy body 61. The torque sensing unit of each group forms a circuit structure of a Wheatstone bridge with a fixed resistance value, and converts the torque strain sensed by each of the torque sensing units 50 into a voltage signal. Then, the magnitude of the torque when the rotor of the flywheel 60 rotates can be obtained by amplifying the voltage signal. In this way, through the four groups of torque sensing unit groups disposed at a spatial angular interval of 90 degrees, the torque of the rotor of the flywheel 60 can be sensed in a balanced and accurate manner.

4A and FIG. 4B are respectively a perspective view and an exploded view of a flywheel according to a second embodiment of the present invention. That is, the pedal sports car is a full-magnetic sports car. Compared with the embodiment of the exercise bicycle shown in FIG. 3, the biggest difference between the full-magnetic sports car and the magnetic exercise bicycle in this embodiment is that the full-magnetic sports car has a large self-power generation.

Similarly, the circuit board 30 provided in this embodiment is a disc structure, and the circuit board 30 is locked on the rotor of the flywheel 60. A plurality of power generating coils 22 are disposed on the circuit board 30, and are disposed at a spatial angular interval of 90 degrees. Furthermore, the pedal sports vehicle further provides a plurality of torsion sensing units 50, and each of the torsion sensing units 50 is respectively mounted on a plurality of circular recesses formed in the aluminum alloy body 61 of the flywheel 60. Inside the slot.

As described above, the power generating coils 22 are disposed on the circuit board 30. The pedal sports vehicle provides a plurality of permanent magnets as a magnetic component 21 in the stator of the flywheel 60. The magnetic element 21 moves relative to the power generating coils 22 to generate the operating power supply Vac1.

Further, the user controls the brake device 70 to provide resistance to the rotor of the flywheel 60 through the power generation resistance brake control unit 200. Further, the control unit 42 of the power generation resistance braking control unit 200 generates the brake control signal Vcn according to the braking resistance signal Scn to provide the braking device 70 to provide magnetic resistance, liquid resistance, wind resistance, and friction resistance. Mode control of either The resistance of the flywheel is measured, and the flywheel 60 is braked. 4C, the braking device 70 can be an electromagnet type, used in conjunction with the flywheel 60 through a fixed structure, and the electronic control meter 41 drives the braking device 70 via the driving circuit inside the control unit 42 to The flywheel 60 is braked to provide a magnetic resistance to control the torque of the pedal sport utility vehicle. The brake device 70 can also be provided by a commercial power supply, and the electronic control meter 41 drives the brake device 70 via a drive circuit inside the control unit 42 to control the amount of torque.

Further, the brake device 70 may be a permanent magnet type, and the electronic control instrument 41 controls a small gear (gearbox) via which the semi-arc and the permanent magnet are linked to adjust the distance between the permanent magnet and the flywheel 60. When the distance between the two is closer, the larger the magnetic field cutting force between the two, the greater the suction force generated, thereby increasing the torque of the pedal sport utility vehicle. On the contrary, the farther the distance between the two is, the smaller the magnetic field cutting force between the two is, the smaller the suction force is, and the torque of the pedal sports car is reduced. In contrast to the brake device 70 of the electromagnet type as used in FIG. 4C, the embodiment shown in FIG. 4B can also be used to control the resistance of the flywheel 60 in conjunction with a permanent magnet type brake device. Wherein, the permanent magnet type braking device can control the working angle of the braking device and the flywheel by a small motor or by a manual rotation.

Furthermore, the brake device 70 can adjust the distance between the permanent magnet and the flywheel 60 through the small motor, or can be adjusted by the user by a manual knob to control the torque of the pedal sport utility vehicle.

5A and FIG. 5B are respectively a perspective view and an exploded view of a flywheel according to a third embodiment of the present invention. The pedal sport utility vehicle is a spinning bike. Compared with the exercise bicycle embodiment shown in FIG. 3, the biggest difference between the present embodiment (flywheel vehicle) and the exercise bicycle is that the diameter of the flywheel 60 of the flywheel is much larger than the diameter of the flywheel 60 of the exercise bicycle.

Similarly, the circuit board 30 provided in this embodiment is a disc structure, and the circuit board 30 is locked on the rotor of the flywheel 60. a plurality of power generating coils 22 are disposed on the circuit board 30, and And arranged in a rectangular manner. Furthermore, the pedal sports vehicle further provides a plurality of torsion sensing units 50, and each of the torsion sensing units 50 is respectively mounted on a plurality of circular recesses formed in the aluminum alloy body 61 of the flywheel 60. Inside the slot.

As described above, the power generating coils 22 are disposed on the circuit board 30, and the magnetic elements 21 are disposed corresponding to the power generating coils 22. The power generating coil 22 is a rotatable member, and the magnetic element 21 is a stationary member. Thereby, when the user steps on the sports car to rotate the rotor of the flywheel 60, the magnetic element 21 moves relative to the power generating coils 22 to generate the upper power source Vac1 (as shown in FIG. 1).

5C and FIG. 5D are plan views of different embodiments of the power generating coil of the third embodiment of the present invention. Different from the aspect of the power generating coil 22 shown in FIG. 5B, as shown in FIG. 5C, the power generating coil 22 can be realized by winding a silicon steel sheet around a coil; and as shown in FIG. 5D, the power generating coil 22 can also be made of iron powder. The core is wound around the coil. Thereby, the power generating coil 22 is relatively moved with the magnetic element 21 to cut magnetic lines of force, thereby generating an induced current.

Referring to FIG. 5E, it is an exploded view of a flywheel according to a fourth embodiment of the present invention. The main difference between the embodiment shown in FIG. 5E and the embodiment shown in FIG. 5B is that the structure difference of the aluminum alloy body 61 of the rotor of the flywheel 60 and the difference of the braking device used together (see FIG. 6A for cooperation). Figure 6B). Although the structure of the aluminum alloy body 61 is different, a plurality of circular grooves are also formed in the aluminum alloy body 61, and a torsion sensing unit 50 is respectively disposed corresponding to each of the circular grooves.

Referring to Figures 6A and 6B, the resistance of the flywheel 60 is controlled by providing the braking device 70 with magnetic resistance. Among them, the brake device 70 shown in FIG. 6A is used in combination with a flywheel in the form of an electromagnet to control the resistance of the flywheel 60. Furthermore, the brake device 70 shown in FIG. 6B is used in conjunction with a flywheel in the form of a permanent magnet to control the resistance of the flywheel 60. In this way, the above-mentioned control of the magnetic resistance is provided, and the adjustment of the different resistance levels of the exercise bicycle is provided, so that the user can achieve the effect of exercise and fitness through the pedaling action against different resistance or resistance.

In summary, this creation has the following features and advantages:

1. The torque sensing unit 50 detects the torque strain of the flywheel 60, and the converted and amplified voltage signal can be directly output to the external power generation resistance brake control unit 200 through the circuit board 30 to perform Control of the magnitude of the braking resistance applied to the flywheel 60. Since the carbon brush component is not required, the cost and cost of maintenance and wear damage of the carbon brush component can be eliminated, and the electrical spark generated by the use of the carbon brush component can be avoided, thereby improving the accuracy of signal transmission and increasing the accuracy. Operational safety.

2. The electronic control instrument 41 and the power required by the brake device 70, and the DC operating power source Vdc1 is used to provide the power required by the torque sensing unit 50, the circuit board 30, and the wireless transmitting unit. Therefore, the reliability and stability of the power supply to the sports car are increased.

3. The torque sensing unit 50 can be applied to different types of sports vehicles, such as exercise bikes, rowing machines, bicycle trainers, magnetrons or flywheels, in conjunction with the use of the circuit board 30, so as to increase the flexibility of use. With diversity.

12‧‧‧Auxiliary power generation coil

21‧‧‧Magnetic components

22‧‧‧Power coil

30‧‧‧ boards

50‧‧‧Torque sensing unit

60‧‧‧ flywheel

61‧‧‧Aluminum body

62‧‧‧ cast iron body

Claims (10)

A resistance device is applied to a pedal sport utility vehicle comprising a frame and a flywheel, the flywheel comprising a rotor and a stator fixed to the frame, the resistance device comprising: a a circuit board disposed on the rotor; a plurality of torque sensing units electrically connected to the circuit board; a data processing wireless transmitting unit disposed on the circuit board and connected to the torque sensing units to wirelessly transmit the Torque information and motion information sensed by the torque sensing unit; a control unit that controls the resistance of the pedal sport vehicle; and a wireless receiving device that receives torque information and motion information from the data processing wireless transmitting unit The structure of the flywheel has a first body and a second body; and the torque sensing unit is correspondingly disposed in a plurality of grooves formed by the first body; Two sets are correspondingly disposed on an upper surface and a lower surface of the first body; or the grooves are respectively formed in pairs on the upper surface of the first body; or A groove around twenty-two is set in correspondence to the first body defines the lower surface. The resistance device of claim 1, wherein each of the torque sensing units is a load cell sensor or a strain gauge sensor. The resistance device of claim 1 or 2, wherein the first system of the flywheel structure is an aluminum alloy body, the second system is a cast iron body; or the first body and the second system are both An aluminum alloy body; or the first body and the second system are integrally formed aluminum alloy bodies. The resistance device of claim 1, wherein the pedal sporting vehicle is any one of an exercise bike, a rowing machine, a bicycle trainer, a magnetron or a flywheel. A high-precision power generation resistance device with torque sensing applied to a pedal sport utility vehicle, comprising a frame and a flywheel, the flywheel comprising a rotor and being fixed on the frame The high-precision power generation resistance device with torque sensing includes: a power generation unit comprising: a circuit board disposed on the rotor; and a power module comprising: at least one magnetic component disposed on the stator And a plurality of power generating coils disposed on the circuit board and corresponding to positions of the at least one magnetic component, wherein when the rotor of the flywheel rotates, the power generating coils are relatively moved with the at least one magnetic component a working power supply; a plurality of torque sensing units electrically connected to the circuit board to receive the working power; a data processing wireless transmitting unit disposed on the circuit board and connected to the torque sensing units to wirelessly transmit the Torque information and motion information sensed by the torsion sensing unit; a control unit including a driving circuit and a braking device to control the pedal sporting vehicle And a wireless receiving device that receives torque information and motion information from the data processing wireless transmitting unit; wherein the flywheel has a first body and a second body; and the torque sensing unit Correspondingly disposed in a plurality of grooves formed in the first body; the grooves are respectively formed in pairs on a top surface and a lower surface of the first body; or the grooves are two Two sets are correspondingly opened on the upper surface of the first body; or the grooves are respectively opened in pairs on the lower surface of the first body. The torque-sensing high-precision power generation resistance device according to claim 5, wherein the wireless receiving device is a wireless receiving unit on an electronic control meter or a wireless receiving unit on a personal portable device. The high-precision power generation resistance device according to claim 5, wherein the power module further comprises: a power generation rectifier circuit electrically connected to the circuit board to receive the power generated by the power generation coil, And the power is converted to a DC power supply. The high-precision power generation resistance device with torque sensing according to claim 5, wherein each of the torque sensing units is a load cell sensor or a strain gauge sensor. The high-precision power generation resistance device with torque sensing according to claim 5, wherein the first system of the flywheel structure is an aluminum alloy body, the second system is a cast iron body; or the first body is The second system is an aluminum alloy body; or the first body and the second system are integrally formed aluminum alloy bodies. The torque-sensing high-precision power generation resistance device according to claim 5, wherein the braking device controls the resistance of the flywheel in a manner of providing magnetic resistance, liquid resistance, wind resistance, and friction resistance; The pedal sport utility vehicle is any one of an exercise bike, a rowing machine, a bicycle trainer, a magnetic control car or a flywheel.