KR102485432B1 - Bicycle Simulator - Google Patents

Abstract

The present invention is a bicycle simulator in which the front and rear wheels of a mounted bicycle are arranged and supported on the same plane, supporting the front wheel of the mounted bicycle, and supporting the front wheel roller and the rear wheel of the bicycle that rotate together according to the rotation of the front wheel. And, it includes a rear wheel roller that rotates together with the rotation of the rear wheel, and a first support point for supporting the front wheel of the front wheel roller and a second support point for supporting the rear wheel of the rear wheel roller are disposed on the same plane, thereby creating a substantially flat running path. In addition, by implementing various driving modes in which the inclination angle can be adjusted according to the driving mode, a bicycle simulator capable of providing a dynamic experience extremely similar to an actual riding situation can be provided.

Description

Bicycle Simulator {Bicycle Simulator}

The present invention relates to a bicycle simulator for virtual driving, and more particularly, to a bicycle simulator capable of virtually experiencing various driving routes in an indoor space and enjoying exercise effects.

Bicycle exercise equipment, commonly referred to as a bicycle trainer or bicycle roller, is the most widely used indoor exercise fitness equipment along with a treadmill, and a rider riding a bicycle seated on a rotating roller or cradle uses a pedal to reduce rotational resistance ( Magnetic force, etc.) is applied to rotate the wheel, which aims to strengthen the lower body muscle strength.

Such conventional bicycle exercise equipment has the advantage of being able to provide a considerably high exercise effect to the rider with only a relatively short exercise time through adjustment of the rotation resistance applied to the wheel regardless of the weather.

However, since the conventional bicycle exercise equipment continues only the pedaling exercise to which the rotational resistance is applied while facing the wall in an enclosed indoor space, it does not provide the rider with the pleasure of riding a bicycle at all, resulting in boredom or boredom. Due to this, there was a problem that it was difficult to continue pedaling exercise with continuity.

In order to improve the above problems, Prior Art 1 (Korean Patent Registration No. 10-1677713) and Prior Art 2 (Korean Patent Registration No. 10-1827306) disclose a technique related to a cycle exercise device.

In the prior art 1, by replacing three or more roller parts that rotate about a fixed axis (central axis) and have different outer wall shapes, it is possible to provide riders with a driving experience for various road conditions similar to actual bicycle riding, , there is an advantage in that the rider can continue the pedaling exercise with continuity through the arousal of interest.

In the prior art 2, since the concavo-convex part capable of realizing a virtual road surface protrudes along the roller part, a safer driving experience and natural change of the road surface can be provided to the rider. However, in Prior Art 1 and Prior Art 2, one front wheel roller supporting the front wheel of the bicycle is disposed, while two rear wheel rollers supporting the rear wheel of the bicycle are disposed, so that a height difference may occur between the front wheel and the rear wheel of the bicycle. As a result, even when a flat virtual road surface is implemented, the rider experiences the same driving as driving on a slope having an actual uphill. In addition, the cycle exercise equipment presented in Prior Documents 1 and 2 only implements a flat virtual road surface, but does not implement various driving modes according to the type of rider and the actual driving environment having a slope such as mountain driving. there is

Republic of Korea Patent Registration No. 10-1677713 Republic of Korea Patent Registration No. 10-1827306

An object of the present invention is to provide a bicycle simulator that does not generate unnecessary force to the rider by supporting the front and rear wheels of the bicycle on the same plane to match the actual driving environment when a flat virtual road surface environment is to be implemented.

In addition, an object of the present invention is to provide a bicycle simulator capable of realizing a dynamic experience very similar to an actual riding situation by implementing a driving condition having an incline, such as mountain driving.

A bicycle simulator according to an embodiment of the present invention supports a front wheel of a mounted bicycle and includes a front wheel roller that rotates along with rotation of the front wheel; and a rear wheel roller supporting the rear wheel of the bicycle and rotating together with the rotation of the rear wheel, wherein the front wheel roller supports the front wheel at a first support point and the rear wheel roller supports the rear wheel at a second support point. Points can be coplanar.

a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected; Further including, the front wheel roller and the rear wheel roller may be coupled to be movable along one direction with respect to the base portion.

a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected; a first elevating unit for moving the front end of the base unit up and down along a direction perpendicular to the ground; and a second elevation unit for moving the rear end of the base unit in an up and down direction along a direction perpendicular to the ground.

a first driving unit for applying a driving force to the first lifting unit and the second lifting unit; and a control unit controlling the first driving unit.

A display unit that visually provides a predetermined driving environment including an inclined unit to a rider, wherein the control unit controls the first drive unit to correspond to an inclination angle of the inclined unit displayed on the display unit, so that the first elevation is performed. A driving force may be applied to at least one of the unit and the second lifting unit.

a first speed measuring unit that calculates a driving speed from rotation of the front wheels; a second speed measuring unit that calculates a driving speed from rotation of the rear wheels; a 2-1 driving unit for applying rotational force to the front wheel roller; and a 2-2 driving unit for applying rotational force to the rear wheel roller. may further include.

When the first lifting unit or the second lifting unit moves the base unit in the vertical direction, at least one of the 2-1 drive unit and the 2-2 drive unit so that the rotational speed of the front wheel or the rear wheel is constant. Rotational force may be applied to the front wheel roller or the rear wheel roller.

A belt connected between the front wheel roller and the rear wheel roller to transmit rotational force of one of the front wheel roller and the rear wheel roller to the other one; may further include.

a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected; Further, the belt may be disposed on an outer side of the base portion to connect the front wheel roller and the rear wheel roller.

It may further include a blower device that provides variable wind to the rider according to the driving speed calculated by at least one of the first speed measuring unit and the second speed measuring unit.

a frame support for supporting a frame of the bicycle connecting the front and rear wheels of the bicycle; may further include.

It may further include a shock mitigating member that is disposed under the frame support and alleviates the shock applied to the rider.

The first lifting part and the second lifting part may include a hollow cylinder, a piston inserted into the hollow cylinder to move, and a fluid applying pressure to one end of the piston.

It may further include an input unit for inputting a driving mode and a driving environment.

The input unit may be a terminal device that transmits a query and receives a response using an AI-based chatbot. A method of operating a bicycle simulator according to an embodiment of the present invention includes inputting a driving mode; visually providing a predetermined driving environment having an inclined portion to the rider according to the driving mode; and applying a driving force to at least one of the first and second elevation units to correspond to an inclination angle of the inclination unit provided in the driving environment. and moving the front end or the rear end of the base part up and down along a direction perpendicular to the ground by a driving force applied from at least one of the first elevation part and the second elevation part.

When the driving environment is flat, driving force is not applied to the first elevation part and the second elevation part, and a first support point at which the front wheel roller supports the front wheel and a second support point at which the rear wheel roller supports the rear wheel Support points can be arranged on the same plane.

measuring a rotational speed of a front wheel or a rear wheel of the bicycle; and applying a rotational force to the front wheel roller or the rear wheel roller so that the rotational speed of the front wheel or the rear wheel is constant when the first elevator unit or the second elevator unit moves the base unit in the vertical direction. can do.

The rotational speed of the front wheel or the rear wheel is measured by a speed measuring unit, and the rotational force applied to the front wheel roller and the rear wheel roller may be generated by a 2-1 driving unit and a 2-2 driving unit.

According to the present invention, since the front and rear wheels of a bicycle are supported on the same plane to match the actual driving environment, it is possible to virtually experience the same state as driving on an actual flat ground, thereby excluding unnecessary force and realistic riding. can enjoy

In addition, by raising or lowering the front or rear end of the base part supporting the front and rear rollers, the rider on the bicycle can virtually experience various road surface conditions including the slope, thereby providing a dynamic and realistic feel. You will be able to enjoy riding.

Furthermore, when the control unit, the speed measurement unit, the blower device, and the display device are organically combined and operated, the rider can be provided with a more realistic and interesting virtual riding environment.

1 is a perspective view of a bicycle simulator according to an embodiment of the present invention.
2 is a block diagram of a bicycle simulator according to an embodiment of the present invention.
3 is a perspective view of a frame support according to an embodiment of the present invention.
4A is a side view of a bicycle simulator according to another embodiment of the present invention.
Figure 4b is a partial perspective view of the bicycle simulator shown in Figure 4a.
5 is a side view of a bicycle simulator according to the prior art.
6A is a side view of a bicycle simulator according to an embodiment of the present invention.
6B is a plan view of a bicycle simulator according to an embodiment of the present invention.
6C is a side view of a bicycle simulator according to an embodiment of the present invention.
7 is a side cross-sectional view of the bicycle simulator according to an embodiment of the present invention taken along the line AA shown in FIG. 6A.
8A is a schematic diagram of a display device displaying a driving scene having an inclined portion according to an embodiment of the present invention.
8B is a side view of a bicycle simulator according to an embodiment of the present invention.
9A is a schematic diagram of a display device displaying a driving scene having an inclined portion according to an embodiment of the present invention.
9B is a side view of a bicycle simulator according to an embodiment of the present invention.
10 is a flowchart of a method of operating a bicycle simulator according to an embodiment of the present invention.

Hereinafter, the following embodiments will be described in detail with reference to the accompanying drawings, and when describing with reference to the drawings, the same or corresponding components are given the same reference numerals, and redundant description thereof will be omitted.

Since the present embodiments can apply various transformations, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects and characteristics of the present embodiments, and methods for achieving them will become clear with reference to the details described later in conjunction with the drawings. However, the present embodiments are not limited to the embodiments disclosed below and may be implemented in various forms.

In the following embodiments, terms such as first and second are used for the purpose of distinguishing one component from another component without limiting meaning.

In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

In the following embodiments, directions such as up (up), down (down), left and right (side or side), front (front, front), back (back, back), etc. are not intended to limit the use of rights. For the sake of convenience, the relative position between the drawings and components is determined as a standard, and each direction described below is based on this, except for cases specifically limited otherwise.

In the following embodiments, terms such as include or have mean that features or elements described in the specification exist, and do not preclude the possibility that one or more other features or elements may be added.

In the drawings, the size of components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the following embodiments are not necessarily limited to those shown.

1 is a perspective view of a bicycle simulator according to an embodiment of the present invention. 2 is a block diagram of a bicycle simulator according to an embodiment of the present invention. 3 is a perspective view of a frame support according to an embodiment of the present invention.

In the bicycle simulator 1 according to an embodiment of the present invention, the front and rear wheels of the bicycle 10 supported by the bicycle simulator 1 are supported on the same plane to match the actual flat driving environment, so that the bicycle 10 Rider R on board can virtually experience the same state as driving on an actual level ground, and as a result, it is possible to enjoy realistic riding while excluding unnecessary force.

In addition, as the front or rear end of the base part 20 supporting the front wheel roller 40 and the rear wheel roller 50 is raised or lowered, it is possible to virtually experience various road surface conditions having an inclined part. This allows you to enjoy dynamic and realistic riding.

The above-mentioned bicycle 10 is a concept encompassing all bicycles 10 currently on the market from various manufacturers as well as specially manufactured only for the bicycle simulator 1 according to an embodiment of the present invention. The bicycle 10 includes a bicycle frame 11 constituting the body of the bicycle 10, front wheels 14 and rear wheels 12 rotatably mounted on the bicycle frame 11, and pedaling of the rider R. It may include a drive system (crank, chain, transmission, etc.) that converts the rotational force of the rear wheel 12.

The bicycle simulator 1 according to an embodiment of the present invention includes a base part 20, a frame support part 30, a front wheel roller 40, and a rear wheel roller 50 to implement the functions or actions as described above. , the first lifting unit 61, the second lifting unit 62, the first driving unit 63, the control unit 70, the first and second speed measuring units 71-1 and 71-2, the blower ( 72), a display device 75, a 2-1 driving unit 80 and a 2-2 driving unit 90.

Hereinafter, each configuration described above will be described in detail.

Referring to FIGS. 1 to 3 , the base part 20 according to an embodiment of the present invention is a support member capable of supporting the bicycle 10 by being fixed to the ground. As an example, the base part 20 may be provided in a square frame shape on which the front wheel roller 40 and the rear wheel roller 50, which will be described later, can be seated. However, the present disclosure is not limited thereto, and may be provided as any support member on which the front wheel roller 40 and the rear wheel roller 50 can be seated. In addition, in the base part 20 according to an example, a support frame 21 to which the frame support part 30 can be fixed may be disposed across both sides of the base part 20 .

The frame support 30 is a support member that is detachably coupled to the bicycle frame 11 and stably fixes the position of the bicycle 10 . As an example, the frame support part 30 may include a support bar 31 that is a support member having a straight rod shape extending along one direction and a fixed support part 32 .

A clamp device 310 is disposed at one end of the support bar 31 to detachably couple one side (down tube) of the bicycle frame 11 . At this time, the clamp device 310 may include a first clamp 311 and a second clamp 312 to which one side (down tube) of the bicycle frame 11 can be detachably coupled. As an example, the clamp device 310 may be provided in a detachable form. Accordingly, the bicycle 10 may be supported by exchanging the clamp device 310 according to the type of the bicycle 10 to be mounted. In addition, the clamp device 10 may be implemented using an electromagnet to support one side of the bicycle frame 11 to be mounted, a locking device having a shape corresponding to each other, or a male and female screw locking device. As an example, the clamp device 10 may be provided with a specific magnetic force, for example, a magnetic force of an S pole or an N pole. At this time, a fitting portion (not shown) having a magnetic force different from that of the clamp device 10 may be disposed on the bicycle frame 11 . Accordingly, the bicycle frame 11 may be supported by the clamp device 10 in a non-contact manner. However, the present disclosure is not limited thereto, and may be implemented as another type of locking device capable of supporting one side of the bicycle frame 11 .

The fixed support part 32 may be provided in the shape of a hollow rod and disposed such that the other end of the support bar 31 is inserted. As an example, one end of the fixed support part 32 may be arranged to be fixed to the support frame 21 provided on the base part 20 . In addition, a support bar 31 may be inserted into the other end of the fixed support part 32 to guide the support bar 31 to move along the Z-axis direction.

The impact mitigation member 35 may be disposed at the other end of the support bar 31 to mitigate the impact applied to the rider R. As an example, the impact relieving member 35 may be made of an elastic member and disposed to be inserted into the fixed support part 32 . In this case, one end of the shock mitigating member 35 may support the other end of the support bar 31, and thus, an impact applied to the rider R along the Z-axis direction may be alleviated.

The front wheel roller 40 is a rod-shaped component that supports the front wheel 14 of the bicycle 10 mounted on the bicycle simulator 1 and rotates along with the rotation of the front wheel 14, and is mounted on the bicycle ( 10), both ends may be connected to the base portion 20 so as to freely rotate forward or backward.

The rear wheel roller 50 is a rod-shaped component that supports the rear wheel 12 of the bicycle 10 mounted on the bicycle simulator 1 and rotates along with the rotation of the rear wheel 12, and is mounted on the bicycle ( 10), both ends may be connected to the base portion 20 so as to freely rotate forward or backward.

As described above, the front wheel roller 40 and the rear wheel roller 50 are shaped to rotate together according to the rotation of the front wheel 14 and the rear wheel 12 while being in contact with the front wheel 14 and the rear wheel 12. If it is, it is free of any shape. Accordingly, the longitudinal cross-sections of the front wheel roller 40 and the rear wheel roller 50 may be polygonal, elliptical, or circular. At this time, the front wheel 14 and the rear wheel 12 of the bicycle 10 can move freely on the upper surfaces of the front wheel roller 40 and the rear wheel roller 50.

As an example, the front wheel roller 40 and the rear wheel roller 50 according to the present invention provide a different driving feeling to the rider R who rotates the front wheel 14 and the rear wheel 12, but the front wheel 14 and the rear wheel It may be provided with a circular longitudinal section so that smooth rotation according to the rotation of (12) can be achieved.

The first lifting unit 61 is a driving device capable of moving the front end of the base unit 20 in a direction perpendicular to the ground, for example, in a vertical direction along the Z-axis direction. The second elevating unit 62 is a moving device capable of moving the rear end of the base unit 20 vertically in a direction perpendicular to the ground, for example, in a Z-axis direction. At this time, the first lifting unit 61 and the second lifting unit 62 may receive driving force through the first driving unit 63 controlled by the control unit 70 . The base part 20 may be rotated by the above-described first lifting part 61 and the second lifting part 62 around the rotation axis O. Accordingly, the inclination angle of the bicycle 10 mounted on the base portion 20 can be adjusted in various ways. More specific details related to this will be described later with reference to FIGS. 6 to 8B.

The controller 70 may be hardware that controls overall functions and operations of the bicycle simulator 1 . The control unit 70 may be implemented in the form of a single microprocessor module or a combination of two or more microprocessor modules. That is, the implementation form of the control unit 70 is not limited by any one.

The first speed measuring unit 71-1 is a component that calculates the driving speed from the size of the circumference of the front wheel 14 and the number of revolutions of the front wheel 14 per unit time, in order to accurately count the number of revolutions of the front wheel 14 It may be installed in a position adjacent to the front wheel (14). The second speed measurement unit 71-2 is a component that calculates the driving speed from the size of the circumference of the rear wheel 12 and the number of revolutions of the rear wheel 12 per unit time, in order to accurately count the number of revolutions of the rear wheel 12 It may be installed in a position adjacent to the rear wheel 12.

The blower 72 is a component for providing variable wind to the rider R according to the driving speed calculated by the first and second speed measurement units 71-1 and 71-2, and is a display device to be described later. A pair may be provided at the upper left and right sides of (75), each facing the rider (R). As above, the driving speed calculated in real time from the first and second speed measurement units 71-1 and 71-2 is transmitted to the control unit 70 as driving information on the course of a bicycle competition selected by the rider R or a specific area. can be conveyed In addition, the control unit 70 receiving the driving speed provides a dynamic and realistic riding experience to the rider R by operating and controlling the blower 72 at an intensity corresponding to the corresponding speed.

The display device 75 is a component that visually conveys the driving environment or operating system program for the course of a bicycle competition to the rider R, and as shown in FIG. It may be a curved display device 75 of a size or a goggle-type display device (not shown) worn by the rider R. As an example, when the display device 75 realistically displays a predetermined driving environment, the rider R determines the inclination angle of the bicycle 10 based on road surface condition information corresponding to the driving environment provided in real time. It can be adjusted variously.

The input unit 76 may receive an input of the rider R for controlling the bicycle simulator 1 . As an example, the input unit 76 may be a terminal that transmits a query and receives a response using an AI-based chatbot. Here, the input unit 76 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, a laptop, a desktop, a laptop, and the like equipped with a navigation system and a web browser. At this time, the input unit 76 may be implemented as a terminal capable of accessing a remote server or terminal through a network. The input unit 76 is, for example, a wireless communication device that ensures portability and mobility, and includes navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone) System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, smart It may include all types of handheld-based wireless communication devices such as a smartphone, a smartpad, and a tablet PC. At this time, the control unit 70 may perform the function of a server providing an intelligent “chatbot”-based interactive on-site support service web page, app page, program or application. For example, the controller 70 may be a server that maps a plurality of scenarios and answers to each scenario in advance and stores them in a “chatbot” database. In addition, the control unit 70 is a server that analyzes the request or question and provides a preset answer when a question or request is made by the input unit 76, or transmits it to the manager terminal when the answer does not exist in the chatbot database. can In addition, the control unit 70 may be a server that classifies and clusters questions and answers through collection, pre-processing, and analysis, and then learns them. In this case, the controller 70 may be a server that performs data learning using a deep learning artificial neural network algorithm.

In addition, inputs of the rider R using the input unit 76 include inputs for manipulating buttons, keypads, mice, trackballs, jog switches, knobs, etc., inputs for touching a touch pad or touch screen, voice inputs, Motion input, biometric information input (eg, iris recognition, fingerprint recognition, etc.) may be included, but is not limited thereto. For example, even when the input unit 76 inputs an input signal in a voice input method, when the rider R is visually impaired, or when both hands of the rider R are fixed to the steering wheel and cannot use their hands. , driving mode, etc. may be transmitted to the control unit 70 .

The 2-1 driving unit 80 and the 2-2 driving unit 90 are the front wheel roller 40 and the rear wheel roller 50 calculated by the first and second speed measuring units 71-1 and 71-2. It is a driving device capable of applying rotational force to the front wheel roller 40 or the rear wheel roller 50 according to the rotational speed. The inclination angle of the bicycle 10 may be adjusted in various ways according to a driving mode to be described later. At this time, the control unit 70 operates and controls the 2-1 driving unit 80 and the 2-2 driving unit 90 so that the rotational speeds of the front wheel roller 40 and the rear wheel roller 50 are the same, so that the rider R It provides a stable riding experience.

4a is a side view of a bicycle simulator according to another embodiment of the present invention. Figure 4b is a partial perspective view of the bicycle simulator shown in Figure 4a.

According to another embodiment of the present invention, as shown in FIGS. 4A and 4B, a belt 95 connecting the front roller 40 and the rear roller 50 is between the front roller 40 and the rear roller 50. can be placed in As an example, when the rider R rotates the rear wheel 12 of the bicycle 10 mounted thereon, the rear wheel roller 50 may also rotate by the rotational force of the rear wheel 12. At this time, the rotational force of the rear wheel roller 50 may be transmitted to the front wheel roller 40 through the belt 95 . Accordingly, the rotation speed of the front wheel roller 40 and the rear wheel roller 50 are formed to be the same, so that a stable riding experience can be provided to the rider R. As an example, the belt 95 may be disposed on an outer side of the base portion 20 for convenience of replacement and maintenance. At this time, the front wheel roller 40 and the rear wheel roller 50 are mounted on the base unit 20 without a separate rotation shaft by using the bearing unit 26 disposed along the outer circumferential surface of the front wheel roller 40 and the rear wheel roller 50. can rotate about Also at this time, the belt 95 is arranged to be wound along the outer circumferential surfaces of the front wheel roller 40 and the rear wheel roller 50 so as to transfer rotational force to the front wheel roller 40 and the rear wheel roller 50 .

The rotational speed sensor 910 according to an embodiment of the present invention may be implemented as a magnetic encoder including a magnetic flux sensor. As an example, permanent magnets 921 and 922 having different poles are alternately magnetized along the outer circumferential surface of the front wheel roller 40 . At this time, the permanent magnets 921 and 922 are integrally formed with N poles 921 formed in half of the front wheel roller 40 and S poles 922 formed in the other half, or a plurality of permanent magnets disposed at regular intervals along the outer circumferential surface. It can be formed as an independent permanent magnet of The rotation speed sensor 910 detects the flux linkage of the permanent magnets 921 and 922 for the rotation speed sensor 910, which regularly changes as the front wheel roller 40 rotates, and outputs it as an electrical signal. can Then, the output signal may be applied to the control unit 70 to detect rotation of the front wheel roller 40 . In one embodiment of the present invention, the rotation speed sensor 910 is illustrated as a magnetic encoder including a magnetic flux sensor, but the present invention is not limited thereto. As an example, the rotational speed sensor 910 may be implemented as an optical encoder having a light source and a light receiver, and at this time, a reflective member capable of reflecting light incident from the light source is disposed on the outer circumferential surface of the front wheel roller 40. It could be. In addition, the rotational speed sensor 910 may be arranged to be fixed to the support frame 21 or implemented in a detachable form to the support frame 21 and attached by a user. Also, the rotational speed sensor 910 according to an example may be disposed on the rear roller 50 as well as the front roller 40 or may be disposed on the front roller 40 and the rear roller 50 .

As described above, the first speed measuring unit 71-1 and the second speed measuring unit 71-2 determine the circumference size of the front wheel 14 and the rear wheel 12 and the front wheel 14 and the rear wheel 12 per unit time. The driving speed can be calculated from the number of revolutions. The 2-1 driving unit 80 and the 2-2 driving unit 90 are the rotation speeds of the front wheel 14 and the rear wheel 12 calculated by the first and second speed measuring units 71-1 and 71-2. A rotational force may be applied to the front roller 40 or the rear roller 50 by detecting a difference between the rotational speeds of the front roller 40 and the rear roller 50 measured by the rotational speed detector 910 . At this time, the control unit 70 adjusts the rotational speeds of the front roller 40 and the rear roller 50 to correspond to the rotational speeds of the front wheel 14 and the rear wheel 12, thereby providing a stable riding experience to the rider R. will provide

5 is a side view of a bicycle simulator according to the prior art. 6A is a side view of a bicycle simulator according to an embodiment of the present invention. 6B is a plan view of a bicycle simulator according to an embodiment of the present invention. 6C is a side view of a bicycle simulator according to an embodiment of the present invention. Referring to FIG. 5 , a front wheel 14 of a bicycle 10 installed in a conventional bicycle simulator is supported at one point using one front wheel roller 40 . Further, the rear wheel 12 is supported at two points using two rear wheel rollers 51 and 52 that rotate while supporting and rotating forward and backward below the rear wheel 12 . At this time, the support point M of the front wheel 14 is the lowermost part of the front wheel 14, whereas the support points N ₁ and N ₂ of the rear wheel 12 are not the lowermost part of the rear wheel 12, so that the front wheel 14 An inclined portion having a predetermined angle θ may be formed between the lowermost end and the lowermost end of the rear wheel 12 . Therefore, the rider R can experience the same driving state as driving on an uphill slope having a predetermined angle θ instead of driving on a flat surface.

On the other hand, referring to FIG. 6A , the front wheel 14 of the bicycle 10 mounted on the bicycle simulator 1 according to an embodiment of the present invention is supported by one point using one front wheel roller 40. Further, the rear wheel 12 is supported at one point using one rear wheel roller 50. At this time, the support point M of the front wheel 14 is the lowest end of the front wheel 14, and the support point N of the rear wheel 12 may also be the lowest end of the rear wheel 12. Therefore, the lowermost part of the front wheel 14 and the lowermost part of the rear wheel 12 can be disposed on the same plane, and thus the rider R can experience the same driving condition as driving on a substantially flat ground. In addition, unlike the prior art, in the present invention, the rear wheel 12 is supported by one point instead of two points, so that loss of kinetic energy due to frictional force that may occur due to the two-point support can be prevented.

As an example, the frictional resistance F _fric1 applied to the rear wheel 12 of the bicycle 10 mounted on the conventional bicycle simulator shown in FIG. 5 may be expressed as Equation (1) shown below. where C is the coefficient of friction, W is the normal drag force, and α is the angle between the two support points.

식(1)

Equation (1)

On the other hand, the frictional resistance (F _fric2 ) applied to the rear wheel 12 of the bicycle 10 mounted on the bicycle simulator according to an embodiment of the present invention may be expressed as Equation (2) shown below. where C is the coefficient of friction and W is the normal force.

식(2)

Equation (2)

The frictional resistance (F _fric ) applied to the bicycle 10 mounted on the bicycle simulator may be proportional to the normal force (W) applied to the rear wheel roller 50 by the rear wheel 12 . At this time, the bicycle 10 mounted on the bicycle simulator according to an embodiment of the present invention can reduce the vertical drag by about 40 to 50% compared to the bicycle 10 mounted on the conventional bicycle simulator, thereby reducing unnecessary frictional resistance. Driving realism can be improved by reducing .

As described above, when the support point M of the front wheel 14 is the lowest end of the front wheel 14 and the support point N of the rear wheel 12 is also the lowest end of the rear wheel 12, a bicycle mounted on a bicycle simulator ( 10) can minimize the frictional resistance (F _fric ) applied to it. However, depending on the size and type of the bicycle 10 to be mounted, the positions of the front wheel 14 and the rear wheel 12 are different, so that the support point M of the front wheel 14 and the support point N of the rear wheel 12 are the front wheel 14 ) and the lowermost part of the rear wheel 12 may not be disposed.

In view of this problem, in one embodiment of the present invention, the components on which the bicycle 10 is mounted and supported, for example, the frame supported by the front wheel roller 40, the rear wheel roller 50 and the support frame 21 As shown in FIGS. 6B and 6C , the support portion 30 may be moved relative to the base portion 20 along the longitudinal direction and the thickness direction of the base portion 20, for example, along the X-axis direction and the Z-axis direction. . Accordingly, the positions of the front wheel roller 40, the rear wheel roller 50, and the support frame 21 are moved in one direction, for example, along the X-axis direction or the Z-axis direction, depending on the size and type of the bicycle 10 to be mounted. By doing so, the fulcrum M of the front wheel 14 and the fulcrum N of the rear wheel 12 can be disposed at the lowest end of the front wheel 14 and the rear wheel 12 . Therefore, the lowermost part of the front wheel 14 and the lowermost part of the rear wheel 12 can be arranged on the same plane, and thus the rider R experiences the same driving condition as driving on a substantially flat ground and uses kinetic energy due to unnecessary frictional force. losses can be avoided. In addition, structures disposed under the front roller 40, the rear roller 50, and the support frame 21 can be more easily repaired.

7 is a side cross-sectional view of a bicycle simulator according to an embodiment of the present invention taken along the line A-A shown in FIG. 6A.

In the bicycle simulator 1 according to an embodiment of the present invention, the inclination angle δ of the bicycle 10 mounted on the bicycle simulator 1 is determined by rotating the base unit 20 around an axis O. can be adjusted Accordingly, the rider R riding the bicycle 10 can experience the same driving condition as driving downhill or uphill. As an example, as shown in FIG. 7 , the first elevation unit 61 may include a hollow hydraulic cylinder 610, a piston 612, an elastic member 613, and a fluid 614. The hydraulic cylinder 610 is connected in fluid communication with the first driving unit 63 controlled by the control unit 70, for example, a hydraulic pump, so that the pressure of the fluid 614 delivered from the hydraulic pump is the work of the piston 612. As a cylinder member that can be delivered to the end, it can guide the reciprocating motion of the piston 612 while maintaining a sealed state with the other end of the piston 612. At this time, between the hydraulic cylinder 610 and the piston 612, at least one elastic member 613 for elastically supporting the piston 612 inward with respect to the hydraulic cylinder 610 may be provided. When the operation of the first driving unit 63 is stopped, the elastic member 613 may return the piston 612 downward so as not to supply the fluid 614 into the hydraulic cylinder 610.

The second elevation part 62 may include a hollow hydraulic cylinder 620 , a piston 622 , an elastic member 623 and a fluid 624 . Since the configuration and operation of the second elevator unit 62 are substantially the same as those of the first elevator unit 61, description thereof is omitted here for convenience.

As described above, using the first drive unit 63 controlled by the control unit 70, the piston 612 provided in the first elevation unit 61 and the piston 622 provided in the second elevation unit 62 ) may rise or fall along the direction perpendicular to the ground, that is, the Z-axis direction. Accordingly, it can be raised or lowered along the front end of the base part 20 supported by the piston 612 provided in the first lifting part 61 or along the Z-axis direction. In addition, it can be raised or lowered along the rear end of the base part 20 supported by the piston 622 provided in the second lifting part 62 or along the Z-axis direction. As the front end or the rear end of the base part 20 rises or falls, the base part 20 can be rotated about one axis O, and thus the bicycle 10 mounted on the bicycle simulator 1 can be rotated. The inclination angle (δ) can be adjusted.

Below, by adjusting the inclination angle δ of the bicycle 10 mounted on the bicycle simulator 1 in conjunction with the display device 75, as it is possible to experience various driving conditions visually as well as the whole body, more The bicycle simulator (1) that can enjoy dynamic and exciting riding in an indoor space will be described in more detail.

8A is a schematic diagram of a display device displaying a driving scene having an inclined portion according to an embodiment of the present invention. 8B is a side view of a bicycle simulator according to an embodiment of the present invention. 9A is a schematic diagram of a display device displaying a driving scene having an inclined portion according to an embodiment of the present invention. 9B is a side view of a bicycle simulator according to an embodiment of the present invention.

Referring to FIG. 8A , the display device 75 may display a rider R riding a bicycle on an inclined road having a first inclination angle δ ₁ . As an example, such a driving route may be implemented as an uphill road of a mountain driving route. At this time, the controller 70 may recognize the driving state implemented in the display device 75 and then operate the first driving unit 63 to respond to the driving state. As an example, as shown in FIG. 8B , the piston 612 provided in the first lifting unit 61 may be raised along the Z-axis direction by the operation of the first driving unit 63 . Accordingly, the front end of the base part 20 supported by the piston 612 may also rise along the Z-axis direction, and as a result, the base part 20 is inclined to have a first inclination angle δ ₁ with respect to the ground. can lose Accordingly, the bicycle 10 supported by the base part 20 can also be arranged to have a first inclination angle δ ₁ with respect to the ground, and the rider R can more safely travel on a mountain road having an inclination angle. You will be able to enjoy the same dynamic experience as driving in the interior.

In addition, as described above, when the bicycle 10 supported by the bicycle simulator 1 is arranged to have a first inclination angle δ ₁ with respect to the ground in order to implement uphill driving, the front wheels 14 and the rear wheels 12 ), the rotation speed may not be constant. At this time, the first speed measuring unit 71-1 and the second speed measuring unit 71-2 may measure the rotational speed of the front wheel 14 and the rear wheel 12 and transmit the measured rotational speed to the control unit 70. When the rotation speeds of the front wheel 14 and the rear wheel 12 do not match, the control unit 70 controls the 2-1 driving unit 80 and the 2-2 driving unit 90 to move the front wheel roller 40 or the rear wheel A rotational force may be applied to one or more of the rollers 50 . Accordingly, the rotation speeds of the front wheels 14 and the rear wheels 12 can be matched, and the rider R can experience the same driving condition as actual driving.

Referring to FIG. 9A , the display device 75 may display a rider R riding a bicycle on an inclined road having a second inclination angle δ ₂ . As an example, such a driving route may be implemented as a downhill road of a mountain driving route. At this time, the controller 70 may recognize the driving state implemented in the display device 75 and then operate the first driving unit 63 to respond to the driving state. The technical features of realizing downhill driving using the control unit 70, the first driving part 63, and the second lifting part 62 are substantially the same as those of implementing uphill driving shown in FIGS. 8A and 8B. Description is omitted here.

10 is a flowchart of a method of operating a bicycle simulator according to an embodiment of the present invention.

Referring to FIG. 10 , the rider R may input a driving mode to be driven using the input unit 76 . (S110) As an example, when the input unit 76 is a terminal that transmits a query and receives a response using an artificial intelligence-based chatbot, driving including mountain information to be driven, etc. inquired by the rider R A driving mode according to one of a plurality of pre-mapped scenarios according to the mode may be selected. At this time, inputs of the rider R using the input unit 76 include inputs for manipulating buttons, keypads, mice, trackballs, jog switches, knobs, etc., inputs for touching touch pads or touch screens, voice inputs, Motion input, biometric information input (eg, iris recognition, fingerprint recognition, etc.) may be included, but is not limited thereto. For example, even when the input unit 76 inputs an input signal in a voice input method, when the rider R is visually impaired, or when both hands of the rider R are fixed to the steering wheel and cannot use their hands. , driving mode, etc. may be transmitted to the control unit 70 .

The display device 75 can visually provide the rider R with a predetermined driving environment having an inclined portion according to the driving mode selected by the rider R. (S120) As an example, the actual mountain driving route input by the rider R may be displayed on the display device 75. Accordingly, the rider R can visually experience various driving conditions including the inclination angle δ.

The control unit 70 may apply a driving force to one or more of the first elevation unit 61 and the second elevation unit by using the first driving unit 63 . (S130) As an example, the controller 70 may recognize the driving state implemented in the display device 75 and then operate the first driving unit 63 to respond to the driving situation. For example, the control unit 70 uses the first driving unit 63 to raise or lower the pistons 612 and 622 provided in the first lifting unit 61 or the second lifting unit 62 along the Z-axis direction. It can be manipulated to descend.

The front end or the rear end of the base part 20 may be moved up and down along a direction perpendicular to the ground by a driving force applied from at least one of the first lifting part 61 and the second lifting part 62 . (S140) As an example, when the pistons 612 and 622 provided in the first elevation unit 61 or the second elevation unit 62 rise or fall along the Z-axis direction, the pistons 612 and 622 ) The base part 20 supported by may be inclined to have an inclination angle δ with respect to the ground. Accordingly, the bicycle 10 supported by the base part 20 can also be arranged to have an inclination angle δ with respect to the ground, and the rider R can more safely travel on a mountain trail having an inclination angle. You can enjoy the same dynamic experience indoors.

The first speed measuring unit 71 - 1 and the second speed measuring unit 71 - 2 may measure the rotation speed of the front wheel 14 or the rear wheel 12 of the bicycle 10 . (S150) As an example, the first speed measuring unit 71-1 and the second speed measuring unit 71-2 measure the rotational speed of the front wheel 14 and the rear wheel 12 and transmit it to the control unit 70. can

When the first lifting part 61 or the second lifting part 62 moves the base part 20 in the vertical direction to form the inclination angle δ, the control unit 70 moves the front wheel 14 or the rear wheel 12 ) It is possible to apply a rotational force to the front wheel roller 40 or the rear wheel roller 50 so that the rotational speed is constant. (S160) As an example, the bicycle 10 supported on the base part 20 by the first lifting part 61 or the second lifting part 62 is arranged to have an inclination angle δ with respect to the ground In this case, rotation speeds of the front wheel 14 and the rear wheel 12 may not match. At this time, the controller 70 may apply rotational force to one or more of the front wheel roller 40 and the rear wheel roller 50 by controlling the 2-1 driving unit 80 and the 2-2 driving unit 90 . Accordingly, the rotation speeds of the front wheels 14 and the rear wheels 12 can be matched, and the rider R can experience the same driving condition as actual driving.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

1: bike simulator 70: control unit
10: bicycle 71-1: first speed measuring unit
11: bicycle frame 71-2: second speed measuring unit
12: rear wheel 72: blower
14: front wheel 75: display device
20: base unit 76: input unit
21: support frame 80: 2-1 driving unit
30: frame support 90: 2-2 driving unit
31: support bar 100: frame support
32: fixed support 610, 620: hydraulic cylinder
35: impact relieving member 612, 622: piston
40: front wheel roller 613, 623: elastic member
50: rear wheel roller 614, 624: fluid
61: first lifting unit
62: second lifting unit
63: driving unit

Claims (10)

a front wheel roller that supports the front wheel of the mounted bicycle and rotates along with the rotation of the front wheel;
a rear wheel roller that supports the rear wheel of the bicycle and rotates along with the rotation of the rear wheel;
a belt disposed between the front wheel roller and the rear wheel roller;
a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected;
a bearing portion disposed along an outer circumferential surface of the front wheel roller; and
Includes; a bearing portion disposed along the outer circumferential surface of the rear wheel roller,
The belt is disposed to wind the outer circumferential surface of the front wheel roller and the outer circumferential surface of the rear wheel roller to transmit rotational force between the front wheel roller and the rear wheel roller,
The belt is disposed on the outer side of the base portion,
bike simulator.
delete delete delete delete According to claim 1,
A rotational speed sensor for detecting a rotational speed of one or more of the front wheel roller and the rear wheel roller; further comprising
bike simulator. According to claim 6,
A plurality of permanent magnets disposed on an outer circumferential surface of at least one of the front wheel roller or the rear wheel roller; further comprising,
The plurality of permanent magnets are magnetic encoders in which permanent magnets having different poles are alternately disposed, and the rotation speed sensor is disposed to face the plurality of permanent magnets.
bike simulator. According to claim 7,
a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected; Including more,
The rotational speed sensor is arranged to be fixed to the base part
bike simulator. According to claim 6,
A plurality of reflective members disposed on an outer circumferential surface of at least one of the front wheel roller and the rear wheel roller;
The rotation speed sensor is an optical encoder disposed to face the reflective member,
bike simulator. According to claim 9,
a base portion to which both ends of the front wheel roller and both ends of the rear wheel roller are connected; Including more,
The rotational speed sensor is arranged to be fixed to the base part
bike simulator.

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