A control system for a fitness bike simulating real motion

Abstract

The invention discloses a control system for a fitness bike to simulate real motion, which includes a fitness bike body, a detection module, a controller and a current compensation module. The fitness bike body is provided with a pedal and a resistance adjustment module, and the resistance adjustment module is provided with a plurality of gears. The current of the brake coil around the flywheel of the fitness bike body is adjusted by switching the gears, and the resistance of the flywheel is adjusted. A plurality of detection units are provided in the detection module, and the pedaling frequency of the pedal, the rotation speed of the flywheel, the temperature and current of the brake coil are collected respectively. The controller is connected to the detection module and receives the detection data collected by the detection module. The controller analyzes the changes of the temperature and current of the brake coil and the rotation speed of the flywheel, and calculates the speed of the fitness bike. When the temperature overload affects the speed, the controller controls the current compensation module to perform current compensation on the resistance adjustment module, so that the speed remains unchanged. The invention realizes a riding scene that can control the fitness bike to simulate real motion.

Description

Technical Field

[0001] The invention relates to the technical field of fitness bikes, and in particular to a control system for a fitness bike simulating real motion. Background Art

[0002] Fitness bikes are called "power bikes" in the field of sports science. They are divided into upright and recumbent fitness bikes. They can adjust the power during exercise to achieve fitness effects, so people call them fitness bikes. Fitness bikes are typical aerobic fitness equipment that simulates outdoor sports and are also called cardiopulmonary training equipment. They mainly promote cardiovascular exercise, speed up metabolism, and enhance heart and lung function through long-term and appropriate intensity exercise, thereby improving human physique.

[0003] With the development of technology, when an exercise bike is actually used, the pedaling speed needs to be consistent with the APP display. If there is no pedaling, no data can be displayed. There is no way to feedback the continued movement brought by the inertia wheel after pedaling stops and the energy stored in the inertia wheel under different resistances. When riding outdoors, the bike can still continue to move forward when the bike is not pedaled, and finally stops moving due to the friction of resistance. The experience of an exercise bike is obviously different from that of real sports riding. Therefore, it is necessary to design a control system for an exercise bike that can simulate a real sports riding scene to improve the user experience. Summary of the invention

[0004] The object of the present invention is to provide a control system for a fitness bike to simulate real motion.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A control system for a fitness bike simulating real motion, comprising a fitness bike body, a detection module, a controller and a current compensation module, wherein the fitness bike body is provided with a pedal and a resistance adjustment module, wherein the resistance adjustment module is provided with a plurality of gears, and the current of a brake coil around a flywheel of the fitness bike body is adjusted by switching the gears, and the resistance of the flywheel is adjusted, wherein a plurality of detection units are provided in the detection module, and the pedaling frequency of the pedal, the rotation speed of the flywheel, the temperature and current of the brake coil are respectively collected, and the controller is connected to the detection module and receives the collected detection data, and the controller analyzes the changes of the temperature and current of the brake coil and the rotation speed of the flywheel, and calculates the speed of the fitness bike, and when the temperature overload affects the speed, the controller controls the current compensation module to perform current compensation on the resistance adjustment module, so that the speed remains unchanged, and when the temperature of the entire system is so high that the current cannot meet the compensation requirements, the real display speed is adjusted according to the temperature rise;

[0007] The formula for calculating the speed of the exercise bike is as follows: , where V speedis the speed of the exercise bike, V rpm is the flywheel speed, Y is the current change, when the gear remains unchanged and the temperature is not enough to affect the current change, the speed remains unchanged. When the temperature overload affects the current loss, it affects the speed. At this time, the controller controls the current compensation module to compensate the resistance adjustment module for current according to the temperature change, current change, speed change and speed change, so that the speed remains unchanged. When the temperature of the entire system is so high that the current cannot meet the compensation requirements, the actual displayed speed is adjusted according to the temperature rise.

[0008] Furthermore, the detection module includes a pedal frequency detector for detecting pedal frequency, a speed detector for detecting flywheel speed, a temperature detector for detecting brake coil temperature, and a current detector for detecting brake coil current.

[0009] Furthermore, the calculation formula of the flywheel speed is: , where N is the gear position, R rpm is the flywheel's rotational speed per minute.

[0010] Furthermore, the calculation formula of the current change Y is: Y=13.9749(I0-I1), wherein I0 is the initial current value of the brake coil that does not change with the temperature rise, and I1 is the current value of the brake coil after the temperature rise changes.

[0011] Furthermore, it also includes a display screen and an APP module. The display screen is set on the fitness bike body and connected to the controller. The speed and gear data are displayed on the display screen through the controller. The display screen is provided with control buttons or a touch screen. The gear switching instruction is selected and transmitted to the controller to control the resistance adjustment module to switch the gear; the APP module is connected to the controller and is provided with a communication module. The APP module obtains the data collected by the detection module through the controller and sends the data to the user's mobile terminal through the communication module.

[0012] Furthermore, the communication module includes a Bluetooth communication module and a wireless communication module.

[0013] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0014] The present invention is provided with a detection module, a controller and a current compensation module. The detection module can be used to collect the pedaling frequency of the pedals, the rotation speed of the flywheel, the temperature and current of the brake coil in real time. The controller analyzes the change of the data of each part and the speed of the fitness bike simulating real sports riding. According to the temperature change of the brake coil, the speed change of the fitness bike body is analyzed. The current is flexibly compensated by the current compensation module to simulate real sports riding. When the pedal stops being stepped on, the motion data is calculated according to inertia, thereby realizing a control system of the fitness bike that can simulate the riding scene of real sports, so as to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a system structure diagram of the present invention;

[0016] Figure 2 This is a circuit diagram of the controller of the present invention;

[0017] Figure 3 This is a current control circuit diagram of the present invention;

[0018] Figure 4 This is a speed detection circuit diagram of the present invention;

[0019] Figure 5 It is a speed detection circuit diagram of the present invention;

[0020] Figure 6 This is a temperature detection circuit diagram of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Cooperate Figures 1 to 6 As shown, the present invention discloses a control system for simulating real motion of an exercise bike, comprising an exercise bike body 1, a detection module 2, a controller 3 and a current compensation module 4, wherein the exercise bike body 1 is provided with a pedal 11 and a resistance adjustment module 12, wherein the resistance adjustment module 12 is provided with a plurality of gears, and the current of the brake coil around the flywheel of the exercise bike body 1 is adjusted by switching the gears, and the resistance of the flywheel is adjusted, wherein the detection module 2 is provided with a plurality of detection units, and the pedaling frequency of the pedal, the rotation speed of the flywheel, the temperature and the current of the brake coil are collected respectively, and the controller 3 is connected with the detection module 2 and receives the detection data collected by the detection module 2, and the temperature and the current of the brake coil and the rotation speed of the flywheel are analyzed by the controller 3, and the speed of the exercise bike is calculated, and when the temperature overload affects the speed, the controller 3 controls the current compensation module 4 to perform current compensation on the resistance adjustment module 12, so that the speed remains unchanged, and when the temperature of the whole system is so large that the current cannot meet the compensation requirement, the real display speed is adjusted according to the temperature rise;

[0024] The formula for calculating the speed of the exercise bike is as follows: , where V speed is the speed of the exercise bike, V rpm is the flywheel speed, Y is the current change, when the gear remains unchanged and the temperature is not enough to affect the current change, the speed remains unchanged. When the temperature overload affects the current loss, it affects the speed. At this time, the controller controls the current compensation module to compensate the resistance adjustment module for current according to the temperature change, current change, speed change and speed change, so that the speed remains unchanged. When the temperature of the entire system is so high that the current cannot meet the compensation requirements, the actual displayed speed is adjusted according to the temperature rise.

[0025] The detection module 2 includes a pedal frequency detector for detecting the pedal frequency of the pedal 11, a speed detector for detecting the speed of the flywheel, a temperature detector for detecting the temperature of the brake coil, and a current detector for detecting the current of the brake coil.

[0026] The gear position of this embodiment remains unchanged. When the system temperature is not large enough to affect the current, the speed remains unchanged. When the temperature effect on the system is too great to compensate for the current loss, the controller 3 adjusts the flywheel power and speed in real time according to the temperature rise and current changes, forming a real-time feedback system.

[0027] During the exercise bike riding process that simulates real sports, continuous current passes through the brake coil and the flywheel rotation to cut the magnetic field, causing the brake coil to continue to heat up and the heating impedance to increase. When the temperature of the brake coil reaches a certain level, the original current compensation can no longer keep up with the current change caused by the temperature change of the brake coil. At this time, the power of the flywheel will decrease, that is, the riding resistance will decrease. At this time, the riding frequency remains unchanged and the riding speed also decreases accordingly.

[0028] The calculation formula of the flywheel speed is: , where N is the gear position, R rpm is the speed of the flywheel per minute. Resistance gear adjustment is current adjustment, corresponding power change, corresponding speed change.

[0029] In this embodiment, N is set to 1-16 gears, and N of each gear is 1.21, 1.31, 1.42, 1.55, 1.7, 1.79, 1.89, 1.92, 2.08, 2.13, 2.27, 2.43, 2.5, 2.78, 3.13 and 3.57 respectively.

[0030] The calculation formula of the current change Y is: Y=13.9749(I0-I1), where I0 is the initial current value of the brake coil that does not change with the temperature rise, and I1 is the current value of the brake coil after the temperature rise changes.

[0031] The pedal wheel is provided with a separate pedal detector, and the flywheel is provided with a separate speed detector, and the two have different relationships in different states. When pedaling, they have a positively correlated speed ratio relationship, and when not pedaling, they have an irrelevant relationship. The speed unit of this embodiment is km / h.

[0032] This embodiment also includes a display screen and an APP module. The display screen is set on the fitness bike body 1 and connected to the controller 3. The speed and gear data are displayed on the display screen through the controller 3. The display screen is provided with a control button or a touch screen. The gear switching instruction is selected and transmitted to the controller 3 to control the resistance adjustment module 12 to switch the gear. The APP module is connected to the controller 3 and is provided with a communication module. The APP module obtains the data collected by the detection module 2 through the controller 3 and sends the data to the user's mobile terminal through the communication module. In the riding process simulating real sports, whether there is a pedal or no pedal, the riding speed data can be collected in real time, which is consistent with the real riding state.

[0033] The communication module includes a Bluetooth communication module and a wireless communication module.

[0034] This embodiment is provided with a detection module 2, a controller 3 and a current compensation module 4. The detection module 2 can collect the pedaling frequency of the pedal 11, the speed of the flywheel, the temperature and current of the brake coil in real time. The controller 3 analyzes the changes in the data of each part and the speed of the fitness bike simulating real sports riding. According to the temperature change of the brake coil, the speed change of the fitness bike body 1 is analyzed. The current is flexibly compensated by the current compensation module 4 to simulate real sports riding. When the pedal stops being pedaled, the motion data is calculated according to inertia, thereby realizing a control system of the fitness bike that can simulate the riding scene of real sports, so as to improve the user experience.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A control system for a fitness bike simulating real motion, characterized in that: The invention comprises a fitness bike body, a detection module, a controller and a current compensation module. The fitness bike body is provided with a pedal and a resistance adjustment module. The resistance adjustment module is provided with a plurality of gears. The current of the brake coil around the flywheel of the fitness bike body is adjusted by switching the gears, and the resistance of the flywheel is adjusted. The detection module is provided with a plurality of detection units, which respectively collect the pedaling frequency of the pedal, the rotation speed of the flywheel, the temperature and current of the brake coil. The controller is connected to the detection module and receives the detection data collected by the detection module. The controller analyzes the changes of the temperature and current of the brake coil and the rotation speed of the flywheel, and calculates the speed of the fitness bike. When the temperature overload affects the speed, the controller controls the current compensation module to perform current compensation on the resistance adjustment module to keep the speed unchanged. When the temperature of the whole system is so high that the current cannot meet the compensation requirements, the real display speed is adjusted according to the temperature rise. The formula for calculating the speed of the exercise bike is as follows: , where V speed is the speed of the exercise bike, V rpm is the flywheel speed, Y is the current change. When the gear is unchanged and the temperature is not enough to affect the current change, the speed remains unchanged. When the temperature overload affects the current loss, the speed is affected. At this time, the controller controls the current compensation module to compensate the resistance adjustment module for current according to the temperature change, current change, speed change and speed change, so that the speed remains unchanged. When the temperature of the entire system is so high that the current cannot meet the compensation requirements, the actual display speed is adjusted according to the temperature rise. The detection module includes a pedal frequency detector for detecting pedal frequency, a speed detector for detecting flywheel speed, a temperature detector for detecting brake coil temperature, and a current detector for detecting brake coil current; The calculation formula of the flywheel speed is: , where N is the gear position, R rpm is the speed of the flywheel per minute; The calculation formula of the current change Y is: Y=13.9749(I0-I1), where I0 is the initial current value of the brake coil that does not change with the temperature rise, and I1 is the current value of the brake coil after the temperature rise changes.

2. A control system for simulating real motion of a fitness bike as claimed in claim 1, characterized in that: It also includes a display screen and an APP module. The display screen is arranged on the fitness bike body and connected to the controller. The speed and gear data are displayed on the display screen through the controller. The display screen is provided with control buttons or a touch screen. The gear switching instruction is selected and transmitted to the controller to control the resistance adjustment module to switch the gear. The APP module is connected to the controller and is provided with a communication module. The APP module obtains the data collected by the detection module through the controller and sends the data to the user's mobile terminal through the communication module.

3. A control system for simulating real motion of a fitness bike as claimed in claim 2, characterized in that: The communication module includes a Bluetooth communication module and a wireless communication module.

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