Dynamic power adjustment system for training bicycle

Abstract

The present invention relates to a dynamic power adjustment system for a training bicycle. The system specifically comprises a setting module, a collection module, a data comparison module, a control module and a resistance adjustment module, wherein the setting module is used for determining a set power value; the collection module comprises a detection module or a data collection construction module; the data comparison module is connected to the setting module and the collection module, and is used for comparing an output power value with a set power value to obtain a difference value; the control module is connected to the data comparison module, and control, on the basis of the output power value and the difference value, a resistance assembly to issue an adjustment value; and the resistance adjustment module is connected to the control module, and is used for adjusting the magnitude of resistance on the basis of the value given by the control module. In the present invention, resistance adjustment is performed on a resistance assembly by means of a difference between an output power value and a set power value, such that the output power value can be continuously adjusted to be the same as the set power value, thereby satisfying the consistency between the set power value and an actual output power value.

Description

Dynamic power regulation system of training bicycle TECHNICAL FIELD

[0001] The present application belongs to the technical field of fitness equipment, and particularly relates to a dynamic power regulation system of training bicycle. BACKGROUND

[0002] The fitness bicycle, also known as a power bicycle, is an aerobic fitness equipment that realizes heart-lung function training by simulating outdoor riding, and is widely used in family, fitness room and other scenes to help users improve heart-lung endurance and physical fitness level. Its core function is to simulate different intensity riding environments through a resistance regulation system to meet diversified training needs.

[0003] In the fitness bicycle, the resistance provided by the resistance assembly is generally used to achieve the requirement of power fitness. The resistance assembly is a key technical module for realizing motion intensity control of the fitness bicycle, which adjusts the flywheel resistance through magnetic control, electromagnetic control or intelligent motor mechanism, and directly affects the stability and accuracy of power output. A kind of fitness bicycle commonly used in fitness rooms at present is a constant resistance type fitness bicycle. The resistance is the resistance during riding. The faster the riding speed, the greater the power. The faster the riding speed, the greater the power consumption, and the smaller the power. In this process, the effect of human motion is not ideal.

[0004] The constant resistance type fitness bicycle realizes power output through a fixed resistance assembly. Its core problem is that it cannot maintain constant training intensity. When the pedaling speed changes, the device lacks a dynamic adjustment mechanism, making it difficult to achieve dynamic balance between the set resistance and the externally applied power, resulting in significant fluctuations in output power. This instability directly causes random changes in resistance load during exercise, disrupting the coordination of user pedaling frequency and muscle contraction, forcing the heart-lung system to frequently adapt to non-steady state power output, interfering with the stable improvement of maximum oxygen uptake. At the same time, the lack of resistance control accuracy will exacerbate abnormal stress concentration in local muscle groups, causing compensatory fatigue or risk of exercise injury. In scientific training scenarios, the uncontrollability of power output causes key physiological indicators such as fat burning efficiency and endurance growth to deviate from the expected trajectory, severely weakening the exercise intervention value of the fitness bicycle. SUMMARY

[0005] The purpose of the present application is to provide a dynamic power regulation system of training bicycle to solve the problems in the background art.

[0006] A dynamic power regulation system of training bicycle, the dynamic power regulation control system specifically comprises a setting module, an acquisition module, a data comparison module, a control module and a resistance regulation module;

[0007] The setting module is used to determine the set power value.

[0008] The acquisition module comprises a detection module or a data acquisition construction module, which is used to acquire the torque value and the rotating speed of the driving end based on the torque sensor and the rotating speed sensor, and calculate the output power value of the driving end; the output voltage of the generator and the current in the generator are acquired to calculate the output power value of the generator, and the output power value of the driving end is calculated based on the output power of the generator by the controller;

[0009] The data comparison module is connected with the setting module and the acquisition module, and is used to compare the output power value with the set power value to obtain the difference value.

[0010] The control module is connected with the data comparison module, and the controller issues the adjusting value to the control resistance component according to the output power value difference value.

[0011] The resistance adjusting module is connected with the control module, and is used to adjust the resistance value according to the value given by the control module.

[0012] Preferably, the setting module comprises an acquisition unit and a determination unit.

[0013] The acquisition unit is used to determine the set power value.

[0014] The determination unit is used to transmit the set power value to the data comparison module.

[0015] Preferably, the detection module comprises a setting unit and an acquisition calculation unit.

[0016] The setting unit is used to determine the driving end to which the pressure is applied, and set the corresponding torque sensor and rotating speed sensor based on the driving end; the acquisition calculation unit is used to acquire the torque value of the driving end to which the pressure is applied through the torque sensor, acquire the rotating speed of the driving end through the rotating speed sensor, and calculate the output power value of the driving end according to the torque value and the rotating speed of the driving end.

[0017] The data acquisition construction module comprises a data acquisition unit and a data calculation unit.

[0018] The data acquisition unit is used to acquire the output voltage of the generator and the current in the generator during the rotation of the driving end in the power car; the data calculation unit is used to calculate the output power value of the generator according to the output voltage of the generator and the current in the generator, and calculate the output power value of the driving end based on the output power of the generator by the controller.

[0019] Preferably, the resistance adjusting module comprises a flywheel, and the flywheel is specifically a generator.

[0020] Preferably, the resistance adjusting module comprises a flywheel and an electronic load, and the acquisition module is a data acquisition module, specifically an output voltage and output current acquisition module of the generator; the output power value of the generator is obtained by acquiring the output voltage and the current in the generator, the output power value of the driving end is calculated by the controller based on the output power of the generator, the electronic load connected with the generator is changed, so as to control the current in the generator loop, and then the power provided by the system to the outside can be changed, so that the system power is close to the set power.

[0021] Preferably, the resistance adjusting module comprises a flywheel and an electronic load, and the acquisition module is a detection module, specifically a torque sensor and a rotating speed sensor;

[0022] The controller receives the torque value and the rotating speed value detected by the torque sensor and the rotating speed sensor, calculates the real-time motion power and compares it with the set power value of the power car, and the controller adjusts the size of the electronic load, so that the system power tends to the set power value.

[0023] Preferably, the flywheel is specifically an outer rotor motor, a plurality of heat dissipation fins are arranged on the outer wall of the outer rotor at intervals, and a heat dissipation channel is arranged on the edge surface of the shell; the outer rotor of the flywheel drives the heat dissipation fins to rotate, air flow is formed, the air flow enters from one end of the heat dissipation channel and is discharged from the other end, and heat dissipation is realized for the flywheel, the left fixed plate and the right fixed plate.

[0024] Preferably, the resistance adjusting module comprises a flywheel and a magnetic body, and the magnetic force of the magnetic body is used to adjust the resistance of the flywheel; the acquisition module is a detection module, specifically a torque sensor and a rotating speed sensor.

[0025] Preferably, the magnetic body is specifically an eddy current electromagnet, the magnetic force of the eddy current electromagnet is adjusted by adjusting the current flowing into the eddy current electromagnet, the resistance of the flywheel is adjusted, the resistance of the flywheel changes, the resistance provided by the system to the outside can be controlled, and the output power tends to the set power value.

[0026] Preferably, the magnetic body is specifically a permanent magnet, the resistance output of the flywheel is adjusted by adjusting the distance between the permanent magnet and the flywheel, the resistance provided by the flywheel changes, the resistance provided by the system to the outside can be controlled, and the system power tends to the set power value.

[0027] Preferably, a plurality of heat dissipation fins are arranged on the outer wall of the flywheel at intervals, and a heat dissipation channel is arranged on the edge surface of the shell; the flywheel drives the heat dissipation fins to rotate, air flow is formed, the air flow enters from one end of the heat dissipation channel and is discharged from the other end, and heat dissipation is realized for the flywheel, the left fixed plate and the right fixed plate.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] The application can continuously adjust the output power value to be the same as the set power value, meet the approach of the set power value and the actual output power value, ensure that the human body does not feel the fluctuation of the load in the movement process, and then can not affect the movement rhythm of the human body and the normal work of the heart and lung system.

[0030] The application adjusts the resistance automatically, ensures that the output power is consistent with the set target during movement, and solves the problem of resistance fluctuation caused by speed change of the traditional equipment. This design can keep the training intensity stable at different pedaling frequencies, avoid excessive consumption of the heart and lung system due to load mutation, significantly improve the fat burning efficiency and endurance training effect. At the same time, the constant power design reduces the fatigue or damage risk caused by uneven muscle stress, and is especially suitable for rehabilitation training or physical fitness testing that requires precise intensity control. In addition, stable power output ensures the accuracy of movement data, providing a reliable basis for scientific fitness planning. BRIEF DESCRIPTION OF DRAWINGS

[0031] The application will be further described below in combination with the drawings.

[0032] Fig. 1 is a dynamic power adjustment system structure diagram of a training bicycle according to the application,

[0033] Fig. 2 is a first partial cross-sectional view of Fig. 1,

[0034] Fig. 3 is a second partial cross-sectional view of Fig. 1,

[0035] Fig. 4 is an assembly drawing of the electronic load and the flywheel as a generator in the first arrangement of the dynamic power adjustment system of the training bicycle according to the application,

[0036] Fig. 5 is an assembly drawing of the electronic load and the flywheel as a generator in the second arrangement of the dynamic power adjustment system of the training bicycle according to the application,

[0037] Fig. 6 is an assembly drawing of the eddy current electromagnet and the flywheel in the third arrangement of the dynamic power adjustment system of the training bicycle according to the application,

[0038] Fig. 7 is an assembly drawing of the pull wire motor and the flywheel in the fourth arrangement of the dynamic power adjustment system of the training bicycle according to the application,

[0039] Fig. 8 is a system block diagram of the dynamic power adjustment system based on the training bicycle according to the application.

[0040] In the figure: 1 left fixed plate, 2 drive wheel, 3 first transmission belt, 4 first tensioning device, 5 small wheel, 6 large wheel, 7 second transmission belt, 8 second tensioning device, 9 flywheel pulley, 10 flywheel, 11 fin, 12 right fixed plate, 13 electronic load, 14 connecting frame, 15 shell, 1501 heat dissipation channel, 16 speed sensor, 17 torque sensor, 18 eddy current electromagnet, 19 stay motor. DETAILED DESCRIPTION

[0041] As used in the specification and claims, certain terminology is used to refer to specific components. Those of ordinary skill in the art will appreciate that different names are often used to refer to the same component by different manufacturers. The specification and claims do not use the name of a component as a dispositive to distinguish the component, but rather use the functional difference of the component as the dispositive. As used throughout the specification and claims, "comprising" is to be read as "comprising, without limitation." "Approximately" means within an acceptable error range for the corresponding function, within which range those of ordinary skill in the art would understand a desired result to be achieved.

[0042] In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal" and "vertical" indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The dynamic power regulation system of the training bicycle of the present application will be further described in detail below in conjunction with FIGS. 1-8, but is not limited to the present application.

[0045] The dynamic power regulation system of the training bicycle of the present application, the dynamic power regulation control system specifically comprises a setting module, an acquisition module, a data comparison module, a control module and a resistance regulation module:

[0046] The setting module is used to determine the set power value, and is connected with the data comparison module.

[0047] The setting module comprises:

[0048] The acquisition registration module is configured to determine the set power value;

[0049] The setting module is configured to transmit the set power value to the controller storage;

[0050] It should be noted that the user information is collected, and the user information includes basic information such as the user's name and age. The user terminal is registered based on the user information, the set power value is determined based on the user terminal, and the set power value is transmitted to the controller. The power required by the user can be determined.

[0051] The acquisition module comprises a detection module or a data acquisition construction module. One of the detection module and the data acquisition construction module is connected with the data comparison module. The detection module is configured to measure the torque value of the driving end to which pressure is applied based on a torque sensor, measure the rotating speed of the driving end based on a rotating speed sensor, and calculate the output power value of the driving end based on the torque value and the rotating speed of the driving end obtained by the controller. The data acquisition construction module is connected with the data comparison module and is configured to collect the output voltage of the generator and the current in the generator to calculate the output power value of the generator, and calculate the output power value of the driving end based on the output power value of the generator by the controller.

[0052] The detection module comprises:

[0053] The setting unit is configured to determine the driving end to which pressure is applied, and set corresponding torque sensors and rotating speed sensors based on the driving end.

[0054] The acquisition and calculation unit is configured to collect the torque value of the driving end to which pressure is applied through the torque sensor, collect the rotating speed of the driving end through the rotating speed sensor, transmit the torque value and the rotating speed of the driving end to the controller, and calculate the output power value of the driving end.

[0055] It should be noted that the object to which the output pressure acts needs to be determined when the output power value is obtained. The object here is the driving end. Corresponding torque sensors and rotating speed sensors are set on the driving end. The torque value of the driving end to which pressure is applied is collected through the torque sensor, the rotating speed of the driving end is collected through the rotating speed sensor, the torque value and the rotating speed of the driving end are transmitted to the controller, and the output power value of the driving end is calculated. The calculation formula of the output power value is P=T*V, V is the rotating speed, T is the torque value of the driving end, and P is the output power value. The power value calculated by the current driving end torque value and the rotating speed can be obtained. The constant power fitness vehicle can maintain constant power at different pedal frequencies.

[0056] The data acquisition construction module comprises:

[0057] The data acquisition unit is configured to acquire the output voltage of the generator and the current in the generator during rotation of the driving end of the power vehicle.

[0058] Specifically, by acquiring the output voltage of the generator and the current in the generator, the real-time motion power P is calculated according to the power value calculation formula: P=U*I, wherein U is the current output voltage of the generator, and I is the current output current value of the generator, and the calculated real-time motion power P is compared with the set power value of the power vehicle, the output power is adjusted by adjusting the current of the generator, and the constant power fitness is realized.

[0059] The data calculation unit is configured to calculate the output power value according to the output voltage of the generator and the current in the generator.

[0060] The data comparison module is connected with the setting module and the acquisition module, and is configured to compare the output power value with the set power value to obtain a difference value, wherein the difference value includes that the output power value is less than the set power value and that the output power value is greater than the set power value.

[0061] The data comparison module includes:

[0062] The first construction unit is configured to construct a time model of applying pressure to the driving end, acquire the output power value of the driving end in real time, and correspond the output power value to the time model according to the acquired time to obtain a power model.

[0063] The second construction unit is configured to construct a set power value standard model, and compare the power model with the power standard model.

[0064] The first comparison unit is configured to take the output power value in the power model as a deficiency power if the output power value is less than the set power value in the power standard model.

[0065] The second comparison unit is configured to take the output power value in the power model as an excess power if the output power value is greater than the set power value in the power standard model.

[0066] The third comparison unit is configured to take the output power value in the power model as a normal power if the output power value is equal to the set power value in the power standard model.

[0067] The management unit is configured to take the deficiency power and the excess power as the difference value.

[0068] The control module is connected with the data comparison module, and is configured to control the resistance assembly to increase the resistance if the output power value is less than the set power value, and vice versa, so that the output power value and the set power value tend to be close to each other through the resistance adjustment of the resistance assembly.

[0069] The control module includes:

[0070] The transmission unit is configured to transmit, by the controller, the resistance adjustment value of the resistance component corresponding to the difference value to the resistance component for resistance control.

[0071] The first control unit is configured to, if the difference value is the lack power, control the resistance component to increase the resistance until the output power value is equal to the set power value by the controller.

[0072] The second control unit is configured to, if the difference value is the excess power, control the resistance component to decrease the resistance until the output power value is equal to the set power value by the controller.

[0073] The transmission unit comprises:

[0074] The setting unit is configured to set a unit resistance adjustment value, wherein the unit resistance adjustment value comprises a unit resistance increase adjustment value and a unit resistance decrease adjustment value.

[0075] The building unit is configured to set an information transmission channel between the controller and the resistance component, wherein the information transmission channel comprises a first channel and a second channel, the first channel is information-bound with the difference value, and the second channel is information-bound with the resistance adjustment value of the resistance component corresponding to the difference value.

[0076] The adjustment unit is configured to process the difference value and transmit the unit resistance adjustment value to the resistance component through the first channel to start, process the resistance adjustment value of the resistance component corresponding to the difference value, and transmit the resistance adjustment value to the resistance component through the second channel, and adjust the resistance of the resistance component corresponding to the resistance adjustment value of the resistance component corresponding to the difference value on the basis of the adjustment component.

[0077] It should be noted that the unit resistance adjustment value is set to make the process of decreasing or increasing the resistance of the resistance component more smooth, so as to avoid the situation that the resistance is adjusted in the process of adjusting the resistance, so as to make the adjustment more stable. In addition, the resistance of the resistance component is controlled through the first channel to make the resistance adjustment more real-time and rapid, so as to quickly control the resistance adjustment when the output power value is inconsistent with the set power value. Since it takes a certain operation time to obtain the resistance adjustment value of the resistance component corresponding to the difference value, the time delay of adjusting the resistance of the resistance component is caused, so it is difficult to ensure the timeliness of the resistance adjustment. Then, the time of adjusting the resistance of the resistance component by the unit resistance adjustment value can give the operation time of the resistance adjustment value of the resistance component corresponding to the difference value, and can avoid the situation that the resistance is suddenly decreased or increased to cause the discomfort of the driving end resistance.

[0078] The adjustment unit comprises:

[0079] The first data processing unit is configured to set a home point between the controller and the first channel, wherein the first channel comprises a positive channel and a negative channel.

[0080] The second data processing unit is configured to identify the difference value based on the home point, and trigger a positive channel to send a transmission trigger instruction to the resistance component if the difference value is a lack of power, or trigger a negative channel to send a transmission trigger instruction to the resistance component if the difference value is an excess of power.

[0081] The first trigger unit is configured to start a unit resistance increase adjustment value when the resistance component receives the trigger instruction through the positive channel, and start a unit resistance decrease adjustment value when the resistance component receives the trigger instruction through the negative channel.

[0082] The second trigger unit is configured to set a home box on the second channel, define a home box tag parameter, associate the home box with the function of the resistance component, extract parameter data from the resistance adjustment value of the resistance component corresponding to the difference value (here, the data extracted is the effective data in the resistance adjustment value of the resistance component corresponding to the difference value, because the resistance adjustment value of the resistance component corresponding to the difference value is used to control the resistance adjustment of the resistance component, and the resistance adjustment of the resistance component is realized by a current value, therefore, the resistance adjustment value of the resistance component corresponding to the difference value can be converted into a current value corresponding to the resistance of the resistance component), and transmit the parameter data corresponding to the parameter definition in the home box through the second channel. The resistance component receives the home box, and loads the parameter data on the resistance component based on the association between the home box and the function of the resistance component to run the parameter data.

[0083] It should be noted that the first channel sets the home point to distinguish whether the difference value corresponds to the unit resistance increase adjustment value or the unit resistance decrease adjustment value. After the resistance component receives the instruction, no data judgment is needed, and the unit resistance increase adjustment value or the unit resistance decrease adjustment value is directly obtained according to the positive channel and the negative channel. The trigger instruction is only used as a data transmitted in the positive channel and the negative channel, and the content of the trigger instruction does not matter. The purpose is to transmit quickly with small data volume. The resistance component starts the unit resistance increase adjustment value when receiving the trigger instruction through the positive channel.

[0084] The resistance component starts the unit resistance reduction adjustment value when receiving the trigger instruction through the negative channel. The home box is set on the second channel, and the corresponding home box mark parameter definition is used to associate the home box with the function of the resistance component. The resistance adjustment value of the resistance component corresponding to the difference value is extracted to obtain parameter data, and the parameter data corresponding to the parameter definition is transmitted through the second channel by the home box. The resistance component receives the home box, and based on the association between the home box and the function of the resistance component, the parameter data is loaded on the resistance component for operation. There are infinite home boxes between the controller and the controller on the second channel, and the corresponding home box mark parameter definition is used to associate the home box with the function of the resistance component.

[0085] The home box has multiple box bodies, which can be used to load different parameter data, such as voltage, current and the like. The home box is associated with the function of the resistance component, and the function of the resistance component is the adjustment of the current component on the resistance component. In this way, the parameter data can be directly loaded on the corresponding component of the resistance component. After the resistance component receives the parameter data, it does not need to be processed and directly loaded on the component corresponding to the function of the resistance component, so that the resistance adjustment is more rapid, the efficiency and reaction ability of the resistance adjustment can be improved, and the output power adjustment can be more closely matched with the set power value.

[0086] The resistance adjustment module is connected with the control module, and is used for adjusting the resistance size according to the value given by the control module. The resistance adjustment module comprises a generator and an electronic load.

[0087] By changing the electronic load connected with the generator, the current in the generator circuit is controlled, and then the torque provided by the system to the outside can be changed, so that the system power is close to the set power. The driving wheel is a power input end, and a driving wheel belt pulley is arranged on the wheel shaft on one side of the driving wheel. The driving wheel has a speed sensor on one side, and the speed sensor has a belt pulley at one end of the rotating shaft. The torque sensor is located between the driving wheel and the resistance control component, and the torque sensor has a torque sensor belt pulley at one end of the rotating shaft and a torque sensor belt pulley at the other end. The torque sensor belt pulley and the driving wheel are connected by a transmission belt. The resistance control component includes a generator and an electronic load module. The rotating shaft of the generator is provided with a resistance component belt pulley, and the resistance component belt pulley and the torque sensor belt pulley are connected by a transmission belt. One side of the transmission belt is provided with a belt tensioner.

[0088] Based on the above system, the dynamic power adjustment system based on the training bicycle has the following arrangements, and the first arrangement is specifically as follows: the resistance adjustment module is a resistance control assembly, the resistance control assembly comprises a flywheel 10 and electronic loads 13, wherein the flywheel 10 is specifically a generator. The flywheel 10 is electrically connected with the electronic loads 13 and is fixed on the left fixed plate 1 or the right fixed plate 12. The acquisition module is a detection module and specifically comprises a torque sensor and a rotation speed sensor.

[0089] The left fixed plate 1 is rotationally connected with a driving wheel 2 and the flywheel 10, and the driving wheel 2 drives the flywheel 10 to rotate. The driving wheel 2 is connected with bicycle pedals, and a user directly drives the driving wheel 2 to rotate during training, thereby driving the flywheel 10 to rotate. The power of the training bicycle is adjusted by adjusting the resistance of the flywheel 10.

[0090] In order to increase the rotation speed of the flywheel 10, in the embodiment, a speed change mechanism is arranged between the driving wheel 2 and the flywheel 10, the driving wheel 2 is connected with the speed change mechanism, and the speed change mechanism is connected with the flywheel 10. The speed change mechanism comprises coaxially fixed small wheels 5 and large wheels 6, and the outer diameter of the small wheels 5 is smaller than that of the large wheels 6. The small wheels 5 are connected with the driving wheel 2, and the large wheels 6 are connected with the flywheel 10.

[0091] The outer diameter of the driving wheel 2 is larger than that of the small wheels 5, the driving wheel 2 drives the small wheels 5 to rotate, the outer diameter of the large wheels 6 is larger than that of the flywheel pulley 9, the large wheels 6 drive the flywheel pulley 9 to rotate, and the flywheel pulley 9 is coaxially connected with an input shaft of the flywheel 10.

[0092] Further, the driving wheel 2 is connected with the small wheels 5 through a first transmission belt 3, and the large wheels 6 are connected with the flywheel pulley 9 through a second transmission belt 7. The first transmission belt 3 is connected with a first tensioning device 4, and the second transmission belt 7 is connected with a second tensioning device 8.

[0093] The driving wheel 2 is provided with a rotation speed sensor on one side, the rotation speed sensor is provided with a belt pulley at one end of a rotating shaft, the wheel shaft of the driving wheel 2 is provided with a driving wheel belt pulley, and the rotation speed sensor belt pulley and the driving wheel belt pulley are connected through a synchronous belt.

[0094] The torque sensor is located between the driving wheel 2 and the resistance control assembly, the torque sensor belt pulley is connected with the driving wheel through a transmission belt, the torque sensor is further provided with a torque sensor belt pulley on the rotating shaft, the resistance control assembly is provided with a resistance assembly belt pulley on the rotating shaft, and the torque sensor belt pulley and the resistance assembly belt pulley are connected through a transmission belt.

[0095] The controller of the data comparison module is electrically connected with the torque sensor and the rotating speed sensor of the acquisition module respectively, the controller receives the torque value and the rotating speed value detected by the torque sensor and the rotating speed sensor, calculates the real-time motion power and compares the real-time motion power with the set power value of the power car, and the controller adjusts the size of the electronic load so that the system power tends to the set power value.

[0096] The driving wheel drives the torque sensor to rotate through the transmission belt, the torque sensor drives the generator to rotate through the torque sensor belt pulley, the transmission belt and the resistance assembly belt pulley, the controller receives the torque T and the rotating speed V detected by the torque sensor and the rotating speed sensor, calculates the real-time motion power P according to the formula P = V x T, compares the real-time motion power P with the set power value of the power car, and the controller adjusts the size of the electronic load so as to adjust the current in the generator loop, thereby adjusting the resistance provided by the generator, so that the resistance of the generator changes, the torque provided by the system to the outside can be controlled, the system power tends to the set power value, the power of the power car is kept stable, and constant-power fitness is realized.

[0097] Further, the specific adjustment control process is as follows:

[0098] Firstly, the controller is connected with the setting module to obtain the set power value and transmit the set power value to the controller for storage.

[0099] Secondly, a time model of applying pressure to the driving end is constructed, the acquired output power value of the driving end is corresponded to the time model according to the collection time to obtain a power model, and the power model is compared with a power standard model.

[0100] Specifically, the time model is a time line of the driving end being applied with pressure, the output power value of the driving end is acquired in real time during the process of the driving end being applied with pressure, the output power value is corresponded to the time model according to the collection time to obtain a power model, the power model is a corresponding relationship between the time line and the output power value, then a power standard model is constructed, the power standard model is a value of the set power value in various time periods, for example, in a coordinate system, the time is the X axis and the set power value is the Y axis, so the power standard model is a straight line of the set power value unchanged in the coordinate system.

[0101] Again, the controller calculates the difference value, obtains the resistance adjustment value of the resistance assembly, and sends the specific numerical operation command to the resistance assembly for resistance adjustment. Specifically, if the difference value is a lack of power, the controller controls the resistance assembly to increase the resistance until the output power value equals the set power value; if the difference value is excess power, the controller controls the resistance assembly to reduce the resistance until the output power value equals the set power value.

[0102] For example, the value of the lack of power is k, and here the increase in resistance is reflected in the torque value T. In order to overcome the resistance of the resistance assembly, a greater force needs to be applied to the driving end, so the torque value T of the driving end increases until the value of T is substituted into the calculation formula of the output power value, which equals the set power value P. The output power value can be adjusted in real time to make the output power value consistent with the set power value.

[0103] Finally, the controller transmits the command to the electronic load for control, thereby controlling the current in the generator circuit, and changing the torque provided by the system to the outside, so that the system power approaches the set power.

[0104] The second arrangement, referring to FIG. 5, the flywheel structure in the first arrangement is also a generator, and the specific difference between the second arrangement and the first arrangement is that the output power value of the generator is obtained by collecting the output voltage of the generator and the current in the generator, and the output power value of the driving end is calculated by the controller based on the output power of the generator.

[0105] It should be noted that when obtaining the output power value, the object of the output pressure needs to be determined, and the object here is the driving end. A corresponding data collection module is provided on the driving end, which collects the output voltage and current of the generator driven by the driving end, and calculates the output power of the generator.

[0106] The calculation formula of the generator output power value is: P = U x I, U is the current generator output voltage, I is the current generator output current value, and P is the output power value. The output power of the generator is transmitted to the controller to calculate the output power value of the driving end, and the current power value corresponding to the driving end can be obtained.

[0107] The above conclusion is under ideal conditions. In actual conditions, the generator efficiency and mechanical transmission loss will affect the power accuracy. In order to eliminate the above situation, a correction coefficient K can be introduced. The correction coefficient can eliminate system loss to make the output power value close to the actual power value. The correction coefficient is a series of data obtained from different speeds and different power values.

[0108] The driving wheel is the power input end, the driving wheel and the resistance control assembly are connected through the intermediate transmission shaft, one end of the intermediate transmission shaft is provided with a belt pulley, and the other end is provided with a belt pulley, the belt pulley and the driving wheel are connected through a transmission belt, the resistance control assembly comprises a generator and an electronic load module, one end of the rotating shaft of the generator is provided with a resistance component belt pulley, the resistance component belt pulley and the intermediate transmission shaft belt pulley are connected through a transmission belt, and one side of the transmission belt is provided with a belt pressing wheel.

[0109] When the arrangement method is used, the driving wheel drives the generator to rotate through the intermediate transmission shaft, the data acquisition and construction module acquires the output voltage of the generator and the current in the generator, the real-time motion power P is calculated according to the formula P=UxI and compared with the set power value of the power car, the controller adjusts the size of the electronic load to adjust the current in the generator circuit, thereby adjusting the output power provided by the generator, so that the output power of the generator is changed, the power provided by the system to the outside can be controlled, and the system power tends to the set power value, the power of the power car is kept stable, and constant-power fitness is realized.

[0110] The third arrangement mode, referring to Fig. 6, the specific difference between the third arrangement mode and the first arrangement mode is that the resistance adjustment module is composed of a flywheel and an eddy current electromagnet. Therefore, the way to adjust the resistance size according to the given value of the control module is replaced by: adjusting the current flowing into the eddy current electromagnet, changing the magnetic force of the eddy current electromagnet to adjust the resistance of the flywheel, so that the resistance of the flywheel changes, and the resistance provided by the system to the outside can be controlled, and the output power tends to the set power value.

[0111] When the arrangement method is used, the driving wheel drives the generator to rotate through the intermediate transmission shaft, the data acquisition and construction module acquires the output voltage of the generator and the current in the generator, the real-time motion power P is calculated according to the formula P=UxI and compared with the set power value of the power car, the controller adjusts the size of the electronic load to adjust the current in the generator circuit, thereby adjusting the output power provided by the generator, so that the output power of the generator is changed, the power provided by the system to the outside can be controlled, and the system power tends to the set power value, the power of the power car is kept stable, and constant-power fitness is realized.

[0112] The fourth arrangement, referring to Fig. 7, has the specific difference from the first arrangement that the resistance adjusting module is composed of a flywheel and a permanent magnet under the control of a servo mechanism. The approach of adjusting the resistance size by the given value of the controller is replaced by adjusting the distance between the permanent magnet and the flywheel by the servo mechanism to adjust the resistance output of the flywheel, so that the resistance provided by the flywheel is changed, and the resistance provided by the system can be controlled, so that the system power tends to the set power value.

[0113] It should be noted that the servo mechanism is used to adjust the distance between the permanent magnet and the flywheel to adjust the resistance output of the flywheel, so that the system power tends to the set power value. The resistance control component is the flywheel and the permanent magnet, one side of the permanent magnet is provided with a servo mechanism, the servo mechanism is installed on the base of the resistance control component, the rotating shaft of the servo mechanism is connected with the lower end side of the permanent magnet, and the speed measuring device is a rotating speed sensor which is installed behind the flywheel.

[0114] When the arrangement is used, the torque sensor measures the output torque value, the speed measuring device is connected with the flywheel, the rotating speed of the flywheel is measured, the rotating speed of the driving wheel can be calculated through the transmission ratio between the driving wheel and the flywheel, and the real-time motion power is calculated according to the formula P=VxT. Because the permanent magnet can generate resistance to the flywheel through the eddy current effect, the servo mechanism is used to adjust the distance between the permanent magnet and the flywheel to adjust the resistance of the flywheel, so that the resistance of the flywheel is changed, the resistance provided by the system can be controlled, so that the system power tends to the set power value, the power of the power car is kept stable, and the constant-power fitness is realized.

[0115] In the above-mentioned first arrangement to the fourth arrangement, when the flywheel 10 adopts the form of a generator, specifically an outer rotor motor, or when the flywheel 10 adjusts the resistance to the flywheel through the magnetic force of the magnetic body, in order to facilitate heat dissipation, a plurality of cooling fins 11 are arranged on the outer wall of the flywheel 10 at intervals.

[0116] The flywheel 10 is covered by the right fixed plate 12 on the side away from the left fixed plate 1. The left fixed plate 1 is fixedly connected with a connecting frame 14, and the connecting frame 14 is connected with the bicycle body. The left fixed plate 1 and the right fixed plate 12 are arranged inside the shell 15, and the shell 15 is provided with a cooling channel 1501 on the side surface. The inner wall of the shell 15 is arranged at intervals with the cooling fins 11, and the air duct is formed in the middle. The cooling fins 11 are rotated by the flywheel 10 to form an air flow, the air flow enters from one end of the cooling channel 1501 and is discharged from the other end, thereby achieving heat dissipation for the flywheel 10, the left fixed plate 1 and / or the right fixed plate 12. At the same time, the resistance adjusting element such as the magnetic body and the current adjusting element such as the electronic load also generate heat during work. When the flywheel 10 rotates, the air flow driven by the cooling fins 11 can also dissipate heat for the adjusting elements.

[0117] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A dynamic power regulation system for a training bicycle, characterized in that, The dynamic power regulation control system specifically comprises a setting module, an acquisition module, a data comparison module, a control module and a resistance adjustment module; The setting module is used for determining a set power value; The acquisition module, wherein the acquisition module comprises a detection module or a data acquisition construction module, one, based on a torque sensor (17) and a rotating speed sensor, the torque value and the rotating speed of the driving end are acquired, and the output power value of the driving end is calculated; The second, the output voltage of the generator and the current in the generator are acquired, and the output power value of the generator is calculated, and the output power value of the generator is calculated by the controller. The data comparison module is connected with the setting module and the acquisition module, and is used for comparing the output power value with the set power value to obtain a difference value; The control module is connected with the data comparison module, and the controller controls the resistance component according to the output power value difference value and issues an adjustment value; The resistance adjustment module is connected with the control module, and is used for adjusting the resistance according to the value given by the control module.

2. A dynamic power regulation system for a training bicycle as defined in claim 1, characterized in that The setting module comprises an acquisition unit and a determination unit; The acquisition unit is used for determining a set power value; The determination unit is used for transmitting the set power value to the data comparison module.

3. The dynamic power regulation system based on a training bicycle according to claim 1, characterized in that: The detection module comprises a setting unit and an acquisition and calculation unit; The setting unit is used for determining the driving end subjected to pressure, and corresponding torque sensors (17) and rotating speed sensors are set based on the driving end; The acquisition and calculation unit is used for acquiring the torque value of the driving end subjected to pressure through the torque sensor (17), acquiring the rotating speed of the driving end through the rotating speed sensor, and calculating the output power value of the driving end according to the torque value and the rotating speed of the driving end; The data acquisition construction module comprises a data acquisition unit and a data calculation unit; The data acquisition unit is used for acquiring the output voltage of the generator and the current in the generator during the rotation of the driving end in the power car; The data calculation unit is used for calculating the output power value of the generator according to the output voltage of the generator and the current in the generator, and calculating the output power value of the driving end based on the output power of the generator.

4. A dynamic power regulation system for a training bike according to any one of claims 1 to 3, characterized in that: The resistance adjustment module comprises a flywheel (10), and the flywheel (10) is specifically a generator.

5. The dynamic power regulation system based on a training bicycle according to claim 4, characterized in that: The resistance adjustment module comprises a flywheel (10) and an electronic load (13), the acquisition module is a data acquisition construction module, and specifically, the output voltage and the output current of the generator are acquired; the output power value of the generator is obtained through the acquisition of the output voltage of the generator and the current in the generator, the output power value of the driving end is calculated by the controller based on the output power of the generator, the electronic load (13) connected with the generator is changed, so as to control the current in the generator circuit, and then the power provided by the system to the outside can be changed, so that the system power is close to the set power.

6. The dynamic power regulation system based on a training bicycle according to claim 4, characterized in that: The resistance adjusting module comprises a flywheel (10) and an electronic load (13), and the acquisition module is a detection module, which is specifically a torque sensor (17) and a rotating speed sensor; The controller receives the torque value and the rotating speed value detected by the torque sensor (17) and the rotating speed sensor, calculates the real-time motion power, compares the real-time motion power with the set power value of the power car, and adjusts the size of the electronic load (13) so that the system power tends to the set power value.

7. A dynamic power regulation system for a training bike according to claim 5 or 6, characterized in that: The flywheel (10) is specifically an outer rotor motor, a plurality of heat dissipation fins (11) are arranged on the outer wall of the outer rotor in intervals, the edge surface of the shell (15) is provided with a heat dissipation channel (1501), the outer rotor of the flywheel (10) drives the heat dissipation fins (11) to rotate to form an air flow, the air flow enters from one end of the heat dissipation channel (1501) and is discharged from the other end, and heat dissipation is realized for the flywheel (10), the left fixed plate (1) and the right fixed plate (12).

8. A dynamic power regulation system for a training bicycle according to any one of claims 1 to 3, characterized in that: The resistance adjusting module comprises a flywheel (10) and a magnetic body, and the resistance of the flywheel (10) is adjusted by the magnetic force of the magnetic body; the acquisition module is a detection module, which is specifically a torque sensor (17) and a rotating speed sensor.

9. A dynamic power regulation system for a training bike as claimed in claim 8, wherein, The magnetic body is specifically an eddy current electromagnet (18), the resistance of the flywheel (10) is adjusted by adjusting the current flowing into the eddy current electromagnet (18) to change the magnetic force of the eddy current electromagnet (18), so that the resistance of the flywheel (10) changes, and the resistance provided by the system to the outside can be controlled, so that the output power tends to the set power value.

10. A dynamic power regulation system for a training bicycle as defined in claim 8, wherein, The magnetic body is specifically a permanent magnet, and the resistance output of the flywheel (10) is adjusted by adjusting the distance between the permanent magnet and the flywheel (10), so that the resistance provided by the flywheel (10) changes, and the resistance provided by the system to the outside can be controlled, so that the system power tends to the set power value.

11. A dynamic power regulation system for a training bike according to claim 9 or 10, characterized in that: The flywheel (10) is provided with a plurality of heat dissipation fins (11) on the outer wall in intervals, the edge surface of the shell (15) is provided with a heat dissipation channel (1501), the flywheel (10) drives the heat dissipation fins (11) to rotate to form an air flow, the air flow enters from one end of the heat dissipation channel (1501) and is discharged from the other end, and heat dissipation is realized for the flywheel (10), the left fixed plate (1) and the right fixed plate (12).

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