Auxiliary wheel device and motorcycle assist system including same

Abstract

Provided is a motorcycle assist system. The motorcycle assist system may comprise: an auxiliary wheel device that includes a main body, a main body rotary shaft rotatably installed on one side of the main body in the longitudinal direction, an auxiliary wheel rotatably installed on the other side of the main body in the longitudinal direction, a rotary means located inside the main body and configured to rotate the main body rotary shaft, and a coupling bracket connected to the main body rotary shaft and configured to be connected to the frame of a motorcycle; and a control unit configured to control the rotary means. The main body may be configured to move relative to the frame on the basis of movement of the rotary means using the control unit.

Description

Auxiliary wheel device and motorcycle assistance system including the same

[0001] This document relates to an auxiliary wheel device and a motorcycle assistance system including the same. More specifically, this document relates to an auxiliary wheel device and a motorcycle assistance system including the same for assisting a rider in maintaining balance.

[0002] A motorcycle is generally defined as a two-wheeled vehicle powered by power. Motorcycles lack a roof or outer walls and are relatively smaller than typical passenger cars, allowing for a smaller frame and thus lighter weight, enabling high speeds with less power. Furthermore, their relatively simple structure allows for lower maintenance and repair costs than automobiles.

[0003] In recent years, the demand for motorcycles has been gradually increasing not only for simple transportation but also for various leisure and hobby activities, and the demand for large motorcycles with an engine displacement of 1,000 cc or more and a weight of 300 kg or more is also increasing. However, due to the heavy body of the large motorcycle, it is difficult to maintain an upright posture in various surrounding environments such as riding in the city center, slowing down and stopping due to signal changes and traffic jams, riding in alleys and taking sharp corners, entering slippery places such as gas stations, riding with a passenger, long-distance driving, and parking.

[0004] To solve this problem, auxiliary wheels are used to prevent the motorcycle from falling from side to side while moving slowly or stopping.

[0005] In order to solve the problems of the prior art described above, the purpose of the present disclosure is to provide an auxiliary wheel device capable of preventing a motorcycle from falling over with a simple structure and a motorcycle assistance system including the auxiliary wheel device.

[0006] In addition, another object of the present disclosure is to provide an auxiliary wheel device and a motorcycle assistance system including the auxiliary wheel device for supporting the weight of the motorcycle and maintaining the motorcycle horizontally under various ambient environments.

[0007] The motorcycle assistance system of the present disclosure may include a main body, a main body rotation shaft rotatably installed on one longitudinal side of the main body, an auxiliary wheel rotatably installed on the other longitudinal side of the main body, a rotation means positioned inside the main body and configured to rotate the main body rotation shaft, and an auxiliary wheel device including a coupling bracket connected to the main body rotation shaft and configured to be connected to a frame of a motorcycle, and a control unit configured to control the rotation means. The rotation means may include a drive motor disposed inside the main body, and a gear member configured to be moved by the drive motor and to rotate the main body rotation shaft. The main body may be configured to move with respect to the frame based on a movement of the rotation means by the control unit.

[0008] According to one embodiment, the coupling bracket may include a first connecting portion having an insertion hole formed therein configured to receive an end of the main body rotation shaft, and a second connecting portion opposite the first connecting portion and having a frame fastening hole formed therein configured to be fastened to a frame of the motorcycle.

[0009] According to one embodiment, the auxiliary wheel device may further include a connecting structure connecting the coupling bracket and the main body rotation axis. The connecting structure may include a gap adjusting portion configured to be fastened to the coupling bracket, a height adjusting portion connected to the gap adjusting portion, and a moving block inserted into the height adjusting portion and configured to move relatively to the height adjusting portion and connected to the main body rotation axis.

[0010] According to one embodiment, the auxiliary wheel device may further include a buffer structure configured to reduce impact caused by contact between the auxiliary wheel and the ground. The buffer structure may include a wheel caster connected to the other side of the main body, a cam follower connected to a rotational axis of the auxiliary wheel, a fixed portion protruding from the wheel caster, an elastic member connected to the cam follower and the fixed portion, and a bearing link including a first end rotatably connected to the wheel caster and a second end opposite to the first end and having a guide hole formed therein for accommodating the cam follower.

[0011] According to one embodiment, the auxiliary wheel device may further include a sensor device including a position detection sensor configured to detect rotation of the bearing link. The control unit may be configured to control the rotation means based on information detected by the position detection sensor.

[0012] According to one embodiment, the motorcycle assistance system may further include a sensor device installed within the main body and including a tilt sensor configured to detect a rotation angle of the main body. The control unit may be configured to control the rotation means based on the rotation angle of the main body detected by the tilt sensor.

[0013] According to one embodiment, the auxiliary wheel device may include a first auxiliary wheel device and a second auxiliary wheel device spaced apart from the first auxiliary wheel device. The control unit may be configured to independently control the first auxiliary wheel device and the second auxiliary wheel device.

[0014] According to one embodiment, the motorcycle assistance system may further include an output device configured to provide information of the motorcycle assistance system to the user. The output device may be configured to inform the user of at least one of the availability of a manual operation mode, a power status of the assistance wheel device, a ground contact status of the first assistance wheel device, a ground contact status of the second assistance wheel device, the availability of a parking operation mode of the assistance wheel device, and a battery status of the assistance wheel device.

[0015] According to one embodiment, the motorcycle assistance system may further include an input device comprising a plurality of input areas configured to obtain user input. The control unit may be configured to rotate the main body based on the user input obtained from at least some of the plurality of input areas.

[0016] According to one embodiment, the motorcycle assistance system may further include a speed sensor configured to detect a speed of the motorcycle and a motorcycle tilt detection sensor configured to detect a tilt of the motorcycle.

[0017] According to one embodiment, the control unit can maintain the angle of the main body even if the user input is detected in the plurality of input areas based on at least one of the speed of the motorcycle detected by the speed sensor and the inclination of the motorcycle detected by the motorcycle inclination detection sensor.

[0018] The auxiliary wheel device of the present disclosure may include a main body, a main body rotation shaft rotatably installed on one longitudinal side of the main body, an auxiliary wheel rotatably installed on the other longitudinal side of the main body, a rotation means positioned inside the main body and configured to rotate the main body rotation shaft, and a coupling bracket connected to the main body rotation shaft and configured to be connected to a frame of a motorcycle. The rotation means may include a drive motor disposed inside the main body, and a gear member configured to be moved by the drive motor and to rotate the main body rotation shaft.

[0019] According to one embodiment, the auxiliary wheel device may further include a connecting structure connecting the coupling bracket and the main body rotation axis. The connecting structure may include a gap adjusting portion configured to be fastened to the coupling bracket, a height adjusting portion connected to the gap adjusting portion, and a moving block inserted into the height adjusting portion and configured to move relatively to the height adjusting portion and connected to the main body rotation axis.

[0020] According to one embodiment, the auxiliary wheel device may further include a buffer structure configured to reduce impact caused by contact between the auxiliary wheel and the ground. The buffer structure may include a wheel caster connected to the other side of the main body, a cam follower connected to a rotational axis of the auxiliary wheel, a fixed portion protruding from the wheel caster, an elastic member connected to the cam follower and the fixed portion, and a bearing link including a first end rotatably connected to the wheel caster and a second end opposite to the first end and having a guide hole formed therein for accommodating the cam follower.

[0021] According to one embodiment, the auxiliary wheel device may further include a sensor device including a position detection sensor configured to detect rotation of the bearing link.

[0022] According to one embodiment of the present disclosure, a motorcycle can be prevented from falling over by an auxiliary wheel device, and user convenience can be increased.

[0023] According to one embodiment of the present disclosure, a safety accident can be prevented by limiting the use of an auxiliary wheel device using information detected by a sensor device.

[0024] According to one embodiment of the present disclosure, the distance between the motorcycle and the auxiliary wheel device and the height of the auxiliary wheel device can be adjusted by the connecting structure.

[0025]

[0026] FIG. 1 is a perspective view of a motorcycle including a motorcycle assistance system according to one embodiment of the present disclosure.

[0027] FIG. 2 is a block diagram of a motorcycle assistance system according to one embodiment of the present disclosure.

[0028] FIG. 3 is a perspective view of an auxiliary wheel device according to one embodiment of the present disclosure.

[0029] FIG. 4 is a projection diagram illustrating internal components of an auxiliary wheel device according to one embodiment of the present disclosure.

[0030] FIG. 5 is a perspective view of a coupling bracket according to one embodiment of the present disclosure.

[0031] FIG. 6 is an enlarged view of area A of FIG. 4 according to one embodiment of the present disclosure.

[0032] FIG. 7 is an enlarged view of area B of FIG. 4 according to one embodiment of the present disclosure.

[0033] FIG. 8 is a schematic diagram of an auxiliary wheel device including a buffer structure and a position detection sensor according to one embodiment of the present disclosure.

[0034] FIG. 9 is a schematic diagram of an auxiliary wheel device including a tilt sensor according to one embodiment of the present disclosure.

[0035] FIG. 10 is a perspective view of an auxiliary wheel device according to another embodiment of the present disclosure.

[0036] FIG. 11 is an exploded perspective view of an auxiliary wheel device according to another embodiment of the present disclosure.

[0037] FIG. 12 is a drawing for explaining the position of the auxiliary wheel device according to various modes according to one embodiment of the present disclosure.

[0038] FIG. 13 is a schematic diagram of an input device according to one embodiment of the present disclosure.

[0039] FIG. 14 is a schematic diagram of an indicator according to one embodiment of the present disclosure.

[0040] A motorcycle assistance system is provided. The motorcycle assistance system may include: a main body; a main body rotation shaft installed to be rotatable on one longitudinal side of the main body; an auxiliary wheel installed to be rotatable on the other longitudinal side of the main body; a rotation means positioned inside the main body and configured to rotate the main body rotation shaft; and an auxiliary wheel device including a coupling bracket connected to the main body rotation shaft and configured to be connected to a frame of a motorcycle; and a control unit configured to control the rotation means. The main body may be configured to move relative to the frame based on movement of the rotation means by the control unit.

[0041] The terms and words used in this specification and claims described below are not to be construed as limited to their conventional or dictionary meanings. The inventor will interpret these terms and concepts in a way that best describes the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concepts of the terms to best explain his or her invention.

[0042] Accordingly, it will be understood that the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and that there may be various equivalents and modified examples that can replace them at the time of filing this application.

[0043] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the attached drawings, identical components are represented by identical symbols, where possible. Furthermore, detailed descriptions of well-known functions and structures that may obscure the gist of the present invention are omitted. In the attached drawings, some components are exaggerated, omitted, or schematically depicted, and the sizes of each component do not fully reflect their actual sizes.

[0044]

[0045] FIG. 1 is a perspective view of a motorcycle including a motorcycle assistance system according to one embodiment of the present disclosure. FIG. 2 is a block diagram of a motorcycle assistance system according to one embodiment of the present disclosure.

[0046] Referring to FIG. 1 and / or FIG. 2, the motorcycle assistance system (10) may include an auxiliary wheel device (100), a control unit (200), an input device (300), an output device (400) and / or a sensor device (500).

[0047] The auxiliary wheel device (100) may support the motorcycle (M) or assist in maintaining the horizontality of the motorcycle (M). For example, the auxiliary wheel device (100) may include a first auxiliary wheel device (100a) configured to be mounted on one side of the motorcycle (M) and a second auxiliary wheel device (100b) configured to be mounted on the other side of the motorcycle (M). The first auxiliary wheel device (100a) and the second auxiliary wheel device (100b) may each be independently controlled (e.g., rotated) by the control unit (200). In one embodiment, the auxiliary wheel device (100) may be referred to as an assist device. The auxiliary wheel device (100) may include a main body (110), a coupling bracket (e.g., coupling bracket (120) of FIG. 3) located on one side of the main body (110), a reducer housing (111) that accommodates at least a portion of a rotation means (e.g., gear member (152) of FIG. 4), and an auxiliary wheel (130) located on the other side of the main body (110). The coupling bracket (120) may be mounted on the frame of the motorcycle (M). The specific structure of the auxiliary wheel device (100) is further described below.

[0048] The control unit (200) can transmit a control signal to the auxiliary wheel device (100) and / or the output device (400) using a signal received from the input device (300) or the sensor device (500) described below. In one embodiment, the control unit (200) can be mounted on the motorcycle (M). In another embodiment, the control unit (200) can be mounted inside the main body (110) of the auxiliary wheel device (100).

[0049] The input device (300) can obtain various signals from the user of the motorcycle (M). The input device (300) can transmit the signals obtained from the user to the control unit (200). The input device (300) can include a first input device (e.g., the input device (300) of FIG. 11) including an input area mounted on the motorcycle (M) and / or a second input device (e.g., the user's smartphone) located outside the motorcycle (M). The second input device is carried by the user and can be connected to the control unit (200) via wireless communication (e.g., Bluetooth, Wi-Fi, Zigbee).

[0050] The motorcycle assistance system (10) may further include a communication module (600). The motorcycle assistance system (10) may communicate with a second input device located outside the motorcycle (M) using the communication module (600). The control unit (200) may control the auxiliary wheel device (100) and / or the output device (400) based on a signal obtained using the communication module (600).

[0051] The output device (400) may include at least one light-emitting device (e.g., an LED) or at least one sound device. The output device (400) may provide light or sound to the user based on a signal received from the control unit (200). In one embodiment, the output device (400) may be referred to as an output unit or an indicator.

[0052] The sensor device (500) can detect the status of the auxiliary wheel device (100) and / or the motorcycle (M). For example, the sensor device (500) can include the position detection sensor (510), the encoder (520), and / or the tilt sensor (530) of FIG. 4. The sensor device (500) is electrically connected to the control unit (200), and the control unit (200) can control the auxiliary wheel device (100) and / or the output device (400) based on information detected by the sensor device (500).

[0053] The motorcycle (M) refers to a typical motorcycle (M), and may include, for example, a motorcycle (M) of 125 CC or more. The motorcycle (M) may include a battery (B), an input device (300), and an output device (400). An auxiliary wheel device (100) may be mounted on the motorcycle (M). The auxiliary wheel device (100) may be referred to as a structure included in the motorcycle (M). When the key of the motorcycle (M) is turned ON, a relay contact installed between the battery (B) and the control unit (200) is operated by an ACC signal, so that power is supplied to at least a part of the motorcycle auxiliary system (10), and when the key of the motorcycle (M) is turned OFF, power to the motorcycle auxiliary system (10) may be cut off by the return of the relay contact due to the blocking of the ACC signal.

[0054]

[0055] FIG. 3 is a perspective view of an auxiliary wheel device according to one embodiment of the present disclosure. FIG. 4 is a projection view illustrating internal components of an auxiliary wheel device according to one embodiment of the present disclosure. FIG. 5 is a perspective view of a coupling bracket according to one embodiment of the present disclosure. FIG. 6 is an enlarged view of area A of FIG. 4 according to one embodiment of the present disclosure. FIG. 7 is an enlarged view of area B of FIG. 4 according to one embodiment of the present disclosure.

[0056] Referring to FIGS. 3, 4, 5, 6, and / or 7, the auxiliary wheel device (100) may include a main body (110), a coupling bracket (120), an auxiliary wheel (130), a main body rotation shaft (140), a rotation means (150), and a sensor device (500). The description of the auxiliary wheel device (100) and the sensor device (500) of FIGS. 1 and / or 2 may be applied to the auxiliary wheel device (100) and the sensor device (500) of FIGS. 3, 4, 5, 6, and / or 7.

[0057] The auxiliary wheel device (100) may include a first auxiliary wheel device (100a) configured to be mounted on one side of the motorcycle (M) and a second auxiliary wheel device (100b) configured to be mounted on the other side of the motorcycle (M). The first auxiliary wheel device (100a) may have a shape symmetrical to that of the second auxiliary wheel device (100b).

[0058] The auxiliary wheel device (100) may include a main body (110), a coupling bracket (120), an auxiliary wheel (130), a main body rotation shaft (140), and a rotation means (150).

[0059] The main body (110) is formed in an elongated shape along the longitudinal direction and can form an accommodation space inside. For example, the main body (110) can include a first end region (110a) and a second end region (110b).

[0060] The auxiliary wheel device (100) may include a reducer housing (111) mounted on a first end region (110a) of the main body (110). The reducer housing (111) may accommodate at least a portion of the main body rotation shaft (140) and / or at least a portion of the rotation means (150). In one embodiment, the reducer housing (111) may be fastened to a portion of the main body (110) (e.g., the first end region (110a)) using a plurality of fastening members (112) (e.g., bolts). In another embodiment, the main body (110) and the reducer housing (111) may be formed integrally.

[0061] The coupling bracket (120) can couple the auxiliary wheel device (100) to the motorcycle (M). For example, the coupling bracket (120) can include a first connecting portion (120a) configured to be connected to the main body rotation shaft (140) and at least one second connecting portion (120b) configured to be connected to the frame of the motorcycle (M). The coupling bracket (120) can include an insertion hole (121) formed in the first connecting portion (120a). The insertion hole (121) can accommodate an end of the main body rotation shaft (140). The insertion hole (121) can be formed in a shape corresponding to the end of the main body rotation shaft (140). In one embodiment, the insertion hole (121) is formed in a rectangular shape, and slip of the main body rotation shaft (140) with respect to the coupling bracket (120) can be reduced. However, the shapes of the insertion hole (121) and the main body rotation shaft (140) are exemplary. For example, in another embodiment not shown, the insertion hole (121) and the main body rotation axis (140) may be formed substantially in a cross shape.

[0062] The coupling bracket (120) may include a frame fastening hole (122) formed in at least one second connecting portion (120b). After a guard installed on the frame for the protection of the motorcycle (M) is removed, the second connecting portion (120b) may be fastened to the frame using the bolt hole of the frame on which the guard is installed. For example, the coupling bracket (120) may be fastened to the frame of the motorcycle (M) by fixing the bolt hole of the frame and the frame fastening hole (122) by bolts. By using the bolt hole of the frame, damage to the motorcycle (M) can be prevented, and the ease of installation of the auxiliary wheel device (100) can be ensured.

[0063] The auxiliary wheel (130) is formed in a conventional wheel shape and can be installed to be rotatable on the other side in the longitudinal direction of the main body (110). For example, the auxiliary wheel (130) can be connected to the second end region (110b) of the main body (110) using a buffer structure (e.g., a buffer structure (170) of FIG. 8). The auxiliary wheel (130) can contact the ground and support the auxiliary wheel device (100) and the motorcycle (M). According to one embodiment, the auxiliary wheel device (100) can include a wheel cover (131) that covers at least a portion of the auxiliary wheel (130) and / or at least a portion of the buffer structure (170) (e.g., a wheel caster (171)).

[0064] The main body rotation shaft (140) is formed in a long shaft shape and can be installed to be rotatable on one side in the longitudinal direction of the main body (110) (e.g., the reducer housing (111)). For example, at least a part of the main body rotation shaft (140) can be arranged inside the reducer housing (111) connected to the first end region (110b) of the main body (110). For example, the main body rotation shaft (140) can be arranged to penetrate at least one side of the reducer housing (111). One end of the main body rotation shaft (140) can be connected to the coupling bracket (120). The main body rotation shaft (140) can be rotated based on the rotation means (150).

[0065] The rotating means (150) may include a drive motor (151) and a gear member (152). The drive motor (151) may receive power from a battery (B) of the motorcycle (M) or may receive power from a separate battery (not shown) disposed inside the main body (110) to generate driving force. In one embodiment, the drive motor (151) may be a DC motor. The drive motor (151) may include a reducer for reducing the rotational speed of the DC motor and increasing the torque. The drive motor (151) may include a relay, FET or IGBT, SSR for controlling the forward and reverse rotation of the DC motor, a limit operation signal detection device according to the ground landing or rising operation of the auxiliary wheel (130), and a voltage-current control (CC-CV mode, CV mode, CC mode) device supplied to the DC motor according to the load of the motorcycle (M) and an external load.

[0066] The driving motor (151) can be placed inside the main body (110). Since the driving motor (151) is not exposed to the outside of the main body (110), user inconvenience can be reduced.

[0067] The gear member (152) can reduce the rotational speed of the drive motor (151) and increase the torque. The gear member (152) may be referred to as a multi-stage reducer. The gear member (152) can reduce the deflection of the auxiliary wheel device (100). For example, when the drive motor (151) transmits rotational force to the main body rotation shaft (140), the main body (110) may deflect due to external force and vibration. In order to prevent ground contact due to such deflection, the gear member (152) may include a worm reducer and a planetary reducer equipped with a self-locking function. The reduction ratio of the worm reducer and the planetary reducer can be selectively designed.

[0068] The gear member (152) can change the direction of rotational motion. For example, the gear member (152) can include a worm gear connected to the driving motor (151) and a worm wheel gear positioned substantially orthogonal to the worm gear. The worm wheel gear can be formed on the outer periphery of the main body rotation shaft (140) and meshed with the worm gear. As an example, if the worm gear and the worm wheel gear have a structure that can change the direction of rotational motion, the gear member (521) can include other gears or structures.

[0069] The auxiliary wheel device (100) may further include a sealing member (160) for sealing. The sealing member (160) may prevent foreign substances or moisture from penetrating from the outside to the inside of the auxiliary wheel device (100), and may prevent leakage of the internal components (e.g., oil) of the auxiliary wheel device (100). In one embodiment, the sealing member (160) may be referred to as an O-ring.

[0070] The sealing member (160) may include a first sealing member (161) and a second sealing member (162) for sealing between the main body (110) and the reducer housing (111). For example, the first sealing member (161) and the second sealing member (162) may seal a gap between a first end region (110a) of the main body (110) (e.g., a motor flange) and the reducer housing (111). The sealing member (160) may include a third sealing member (163) for sealing between the main body (110) and the buffer structure (170). For example, the third sealing member (163) may seal a gap between a second end region (110b) of the main body (110) and the wheel caster (171).

[0071] The auxiliary wheel device (100) may include a sensor device (500) configured to detect the status of the auxiliary wheel device (100). The sensor device (500) may include a position detection sensor (510), an encoder (520), and a tilt sensor (530). The sensor device (500) may be electrically connected to a control unit (e.g., the control unit (200) of FIG. 2).

[0072] The position detection sensor (510) can detect the position of a component of the auxiliary wheel device (100) (e.g., the bearing link (175) of FIG. 8). The position detection sensor (510) can be placed adjacent to the auxiliary wheel (130) while being covered by a wheel cover (131). The position detection sensor (510) can be referred to as a limit sensor. The control unit (200) can determine whether the auxiliary wheel device (100) is in contact with the ground based on information detected by the position detection sensor (510). The position detection sensor (510) is further described in FIG. 8.

[0073] The encoder (520) can detect information of the rotating means (150). For example, the encoder (520) can detect the rotational speed, rotational direction, and / or rotational angle of the driving motor (151).

[0074] The tilt sensor (530) can detect the tilt of the auxiliary wheel device (100). The tilt sensor (530) may be a gyro sensor and / or an acceleration sensor located inside the auxiliary wheel device (100). The tilt sensor (530) may be mounted on a substrate (531) located inside the main body (110).

[0075] The encoder (520) and tilt sensor (530) are further described in FIG. 9.

[0076] The sensor device (500) may further include a motorcycle tilt sensor (not shown) for detecting the tilt of the motorcycle (M). The motorcycle tilt sensor may be an acceleration sensor and / or a gyro sensor located inside the motorcycle (M) or inside the auxiliary wheel device (100). The control unit (200) may determine the tilt of the motorcycle (M) or the inclination angle of the motorcycle (M) based on the value detected by the tilt sensor (e.g., change in tilt).

[0077]

[0078] FIG. 8 is a schematic diagram of a wheel body including a buffer structure and a position detection sensor according to one embodiment of the present disclosure.

[0079] Referring to FIG. 8, the auxiliary wheel device (100) may include an auxiliary wheel (130) and a buffer structure (170) connected to a main body (e.g., a part of the main body (110) of FIG. 3 (e.g., the second end region (110b)), and a position detection sensor (510) mounted on the buffer structure (170). The descriptions of the auxiliary wheel device (100), the auxiliary wheel (130), and the position detection sensor (510) of FIG. 1, FIG. 3, FIG. 4, and / or FIG. 7 may be applied to the auxiliary wheel device (100), the auxiliary wheel (130), and the position detection sensor (510) of FIG. 8.

[0080] The buffer structure (170) can reduce the impact applied to the auxiliary wheel (130) when the auxiliary wheel (130) comes into contact with the ground. The buffer structure (170) can include a wheel caster (171), a cam follower (172), a fixing member (173), an elastic member (174), a bearing link (175), and a guide hole (176).

[0081] A pair of wheel casters (171) may be provided on the other side of the main body (110). The wheel casters (171) may be connected or fastened to the second end region (110b) of the main body (110). In another example, the wheel casters (171) may be formed integrally with the main body (110) and extend from the second end region (110b). An auxiliary wheel (130) may be connected between the pair of wheel casters (171). In one embodiment, the wheel casters (171) may include a through hole for accommodating a cam follower (172).

[0082] A cam follower (172) can guide the movement of the auxiliary wheel (130). The cam follower (172) can include a bearing, a bush, and / or a moving shaft. The cam follower (172) can be connected to the auxiliary wheel (130) using the moving shaft. The cam follower (172) can be connected to or in contact with a bearing link (175).

[0083] The fixed part (173) can be connected or fastened to the wheel caster (171). For example, the fixed part (173) can protrude from the surface of the wheel caster (171).

[0084] The elastic member (174) may be positioned between the cam follower (172) and the fixed member (173). For example, one end of the elastic member (174) may be connected to the cam follower (172), and the other end may be connected to the fixed member (173). The elastic member (174) may be compressed or extended based on the movement of the wheel caster (171) and / or the bearing link (175). The elastic member (174) may include a spring and a spring guide connected to the spring. The spring guide may connect the spring and the cam follower.

[0085] The bearing link (175) may be rotatably connected to the wheel caster (171). For example, the bearing link (175) may include a first end (175a) rotatably connected to the wheel caster (171) and a second end (175b) opposite the first end (175a). The second end (175b) may include a guide hole (176). The guide hole (176) may accommodate a cam follower (172) and guide movement of the cam follower (172). The bearing link (175) may rotate about the first end (175a). The bearing link (175) may be referred to as a rotation bracket. The bearing link (175) may be in contact with a position detection sensor (510). For example, the bearing link (175) may include a sensor receiving hole that receives a position detection sensor (510).

[0086] When the auxiliary wheel device (100) rotates, the auxiliary wheel (130) can contact the ground. When the auxiliary wheel (130) contacts the ground, the cam follower (172) can move along the guide hole (176). The guide hole (176) can be formed to extend in a direction perpendicular to the ground or in a diagonal direction.

[0087] The position detection sensor (510) can detect the position of the auxiliary wheel (130) based on the movement of the buffer structure (170). For example, the state of the position detection sensor (510) can change based on the rotation of the bearing link (175). At least a part of the position detection sensor (510) can be located within a through hole formed in the bearing link (175). In one embodiment, when the bearing link (175) rotates due to contact between the auxiliary wheel (130) and the ground, the position detection sensor (510) can change from an open circuit state to a closed circuit state. The control unit (e.g., the control unit (200) of FIG. 2) can determine whether the auxiliary wheel (130) is in contact with the ground based on the information (closed or open state of the circuit) detected by the position detection sensor (510). In another embodiment, the bearing link (175) is formed to have magnetism, and the position detection sensor (510) can detect a change in magnetism according to a change in the position of the bearing link (175). The control unit (e.g., the control unit (200) of FIG. 2) can determine whether the auxiliary wheel (130) is in contact with the ground based on the information (magnetic change) detected by the position detection sensor (510).

[0088]

[0089] FIG. 9 is a schematic diagram of an auxiliary wheel device including a tilt sensor according to one embodiment of the present disclosure.

[0090] Referring to FIG. 9, the auxiliary wheel device (100) may include a main body (110) (e.g., a second end region (110b)), an auxiliary wheel (130), a driving motor (151), a wheel caster (171), an encoder (520), and a tilt sensor (530).

[0091] The description of the auxiliary wheel device (100), the main body (110) (e.g., the second end region (110b)), the auxiliary wheel (130), the driving motor (151), the wheel caster (171), the encoder (520), and the tilt sensor (530) of FIG. 3, FIG. 4, and / or FIG. 7 may be applied to the auxiliary wheel device (100), the main body (110) (e.g., the second end region (110b)), the auxiliary wheel (130), the driving motor (151), the wheel caster (171), the encoder (520), and the tilt sensor (530) of FIG. 9.

[0092] The encoder (520) can detect information of a rotating means (e.g., the rotating means (150) of FIG. 4). For example, the encoder (520) can detect the number of rotations per unit time, the rotation speed, the rotation direction, and / or the rotation angle of the driving motor (151). The encoder (520) can be mounted or connected to the driving motor (151). For example, the encoder (520) can be installed on the input shaft, the output shaft, or the rear of the driving motor (151) of the driving motor. The encoder (520) detects information of the motor (e.g., the number of rotations per unit time, the rotation speed, the rotation direction, and / or the rotation angle), and the control unit (200) can control the auxiliary wheel device (100) based on the information detected by the encoder (520). For example, the control unit (200) can determine the number of rotations per unit time, rotation speed, rotation direction, and / or rotation angle of the motor based on information detected by the encoder (520), and adjust the operating position of the auxiliary wheel device (100). The encoder (520) may be an incremental encoder or an absolute encoder. However, this is merely an example, and the type of encoder (520) is not limited.

[0093] The sensor device (500) may include a tilt sensor (530) for detecting the tilt of the auxiliary wheel device (100). The tilt sensor (530) may be located inside the auxiliary wheel device (100). For example, the tilt sensor (530) may be mounted on a substrate (531) located inside the main body (110). The tilt sensor (530) may be positioned adjacent to the second end (110b) of the main body (110).

[0094] In one embodiment, the tilt sensor (530) includes mercury and / or a ball, and can detect the tilt angle of the auxiliary wheel device (100) based on the tilt angle of the tilt sensor (530). In another embodiment, the tilt sensor (530) can include a gyro sensor and / or an acceleration sensor.

[0095] The control unit (200) can determine the inclination angle of the main body (110) of the auxiliary wheel device (100) based on the value (e.g., change in inclination) detected by the inclination sensor. For example, in one embodiment, the control unit (200) can determine the inclination angle of the main body (110) by comparing the initial angle value stored in a memory (not shown) with the inclination angle of the main body (110) detected by the inclination sensor (530). The control unit (200) can rotate the auxiliary wheel device (100) to the initial state, the ground contact state, or the parking assistance state based on the information detected by the inclination sensor (530). The state change of the auxiliary wheel device (100) by the control unit (200) is further described in FIGS. 12 to 14. In an embodiment not shown, the position of the inclination sensor (530) can be changed. For example, the inclination sensor (530) can be arranged adjacent to the gear member (152). In an embodiment not shown, multiple tilt sensors (530) may be used to improve tilt detection accuracy.

[0096]

[0097] Fig. 10 is a perspective view of an auxiliary wheel device according to another embodiment of the present disclosure. Fig. 11 is an exploded perspective view of an auxiliary wheel device according to another embodiment of the present disclosure.

[0098] Referring to FIG. 10 and / or FIG. 11, the auxiliary wheel device (100) may include a main body (110), a coupling bracket (190), an auxiliary wheel (130), a main body rotation shaft (140), and a connecting structure (700). At least part of the description of the auxiliary wheel device (100), the main body (110), the coupling bracket (120), the auxiliary wheel (130), and the main body rotation shaft (140) of FIGS. 3 to 9 may be applied to the auxiliary wheel device (100), the main body (110), the coupling bracket (190), the auxiliary wheel (130), and the main body rotation shaft (140) of FIG. 10 and / or FIG. 11.

[0099] The connecting structure (700) can connect the connecting bracket (190) and the main body rotation shaft (140). The gap and / or height between the main body rotation shaft (140) and the connecting bracket (190) can be adjusted by the connecting structure (700).

[0100] A coupling bracket (190) can couple the auxiliary wheel device (100) to the motorcycle (M). The coupling bracket (190) can include a first connecting portion configured to be connected to a gap adjusting portion (710) and a second connecting portion (192) protruding from the first connecting portion and configured to be connected to a frame of the motorcycle (M). The first connecting portion can include a plurality of through holes (190a) for accommodating at least one first fastening member (711). The coupling bracket (190) can be coupled to the gap adjusting portion (710) using the first fastening member (711).

[0101] The connecting structure (700) may include a spacing adjustment unit (710). The spacing adjustment unit (710) may connect the height adjustment unit (720) and the coupling bracket (190).

[0102] A coupling bracket (190) may be detachably coupled to one side of the spacing adjustment unit (710), and a height adjustment unit (720) may be detachably coupled to the other side of the spacing adjustment unit (710). The spacing adjustment unit (710) may include a first coupling hole (710a) for receiving a first coupling member (711) and a second coupling member (712). For example, the first coupling member (711) may be inserted into the through hole (190a) of the coupling bracket (190) and the first coupling hole (710a) of the spacing adjustment unit (710) to couple the coupling bracket (190) and the spacing adjustment unit (710).

[0103] The distance between the main body (110) of the auxiliary wheel device (100) and the motorcycle (M) can be increased by the gap adjusting unit (710). By the gap adjusting unit (710), the auxiliary wheel device (100) can be used in various types of motorcycles (M).

[0104] The connecting structure (700) may include a height adjustment unit (720) and a moving block (730). The height adjustment unit (720) and the moving block (730) may connect the gap adjustment unit (710) and the main body rotation shaft (140). The height adjustment unit (720) may include a second fastening hole (720a). The second fastening member (712) may be inserted into the first fastening hole (710a) of the gap adjustment unit (710) and the second fastening hole (720a) of the height adjustment unit (720) to couple the gap adjustment unit (710) and the height adjustment unit (720).

[0105] The height adjustment unit (720) can be coupled to the moving block (730). The height adjustment unit (720) can accommodate the moving block (730). For example, the moving block (730) can be inserted and coupled to the height adjustment unit (720). The positional movement of the moving block (730) relative to the height adjustment unit (720) can be performed using the movement guide bolt (731).

[0106] The moving block (730) can be moved relatively to the height adjustment unit (720) using a moving guide bolt (731). For example, the moving block (730) may include a moving guide bolt (731) configured to be rotated by a rotation guide tool. When the moving guide bolt (731) is rotated using an external rotation guide tool (e.g., a wrench and / or an electric screwdriver), the moving guide bolt (731) can move the moving block (730) up and down (e.g., slide) with respect to the height adjustment unit (720). As the moving block (730) is moved with respect to the height adjustment unit (720), the height of the main body (110) of the coupling bracket (190) can be changed. The auxiliary wheel device (100) can be used for various types of motorcycles (M) by means of the height adjustment unit (720) and the moving block (730).

[0107] The moving block (730) can be coupled to the main body rotation shaft (140). For example, the moving block (730) can include a recess for accommodating an end of the main body rotation shaft (140). The main body rotation shaft (140) can be inserted into the recess of the moving block (730).

[0108]

[0109] FIG. 12 is a diagram illustrating the position of an auxiliary wheel device according to various modes according to one embodiment of the present disclosure. FIG. 13 is a schematic diagram of an input device according to one embodiment of the present disclosure. FIG. 14 is a schematic diagram of an indicator according to one embodiment of the present disclosure.

[0110] Referring to FIG. 2, FIG. 12, FIG. 13, and / or FIG. 14, an auxiliary wheel device (100) mounted on a motorcycle (M) can be controlled using an input device (300). Status information of the auxiliary wheel device (100) can be provided to a user using an output device (400).

[0111] The description of the auxiliary wheel device (100), the input device (300), and the output device (400) of FIG. 2 may be applied to the auxiliary wheel device (100), the input device (300), and the output device (400) of FIG. 12, FIG. 13, and / or FIG. 14.

[0112] The input device (300) can receive various signals from the user and transmit them to the control unit (200). The input device (300) can include an input area frame (301) and a plurality of input areas (302, 303, 304). The input area frame (301) can support a plurality of input areas (302, 303, 304). The input device (300) can be positioned around the instrument panel, handle, or handle bar of the motorcycle (M) to improve visibility and usability for the user.

[0113] In another embodiment, the input device (300) may be an external device (e.g., a user's smartphone) that is communicatively connected to the control unit (200) using a communication module (600). For example, the input area frame (301) of the input device (300) may be a smartphone, and the plurality of input areas (302, 303, 304) may be a plurality of input areas output from an application of the smartphone.

[0114] The input areas (302, 303, 304) may include a first input area (302), a second input area (303), and a third input area (304). The input areas (302, 303, 304) may include switches.

[0115] In one embodiment, multiple input areas (302, 303, 304) may perform indicator functions. For example, multiple input areas (302, 303, 304) may include various LED lamps and audio output devices. The arrangement structure of the input areas (302, 303, 304) of the present disclosure is exemplary.

[0116] The first input area (302) may be referred to as a manual operation button for manual operation. For example, the control unit (200) may perform a manual operation mode when a user input (e.g., pressure or touch) is detected for the first input area (302).

[0117] The manual operation mode refers to an operation in which the control unit (200) lands the auxiliary wheel device (100) on the ground or returns it to its original position. For example, when the user presses the first input area (302) once, a signal detected in the first input area (302) can be transmitted to the control unit (200). Based on the signal detected in the first input area (302), the control unit (200) can change the auxiliary wheel device (100) to a state substantially parallel to the ground (e.g., (a) of FIG. 12), or rotate the auxiliary wheel device (100) so that the auxiliary wheel device (100) and the ground have a designated first angle range (X2) of 30 to 60 degrees. For example, the control unit (200) can drive the rotation means (150) to rotate the main body (110) so that the auxiliary wheel (130) comes into contact with the ground. The user can manually land the auxiliary wheel device (100) on the ground using the first input area (302). Landing the auxiliary wheel device (100) can prevent the motorcycle (M) from falling.

[0118] The control unit (200) can control the rotation of the auxiliary wheel device (100) based on a signal detected by the tilt sensor (530). Referring to one embodiment (e.g., (b) of FIG. 12), the control unit (200) can operate the drive motor (151) until the rotation angle received from the tilt sensor (530) becomes a preset angle. For example, the control unit (200) can operate the drive motor (151) so that the angle between the main body (110) and the ground exists in a first angle range (X1). The first angle range (X1) can be 30 to 60 degrees.

[0119] In one embodiment, the control unit (200) can change the auxiliary wheel device (100) to a driving mode (e.g., a state of (a) of FIG. 12 in which the main body (110) and the ground are substantially parallel)) based on a user input to the first input area (302). For example, when the main body (110) is positioned within the first angle range (X1) by the manual operation mode and a user input by the first input area (312) is again detected, the control unit (200) can operate the drive motor (151) to change the angle between the auxiliary wheel device (100) and the ground.

[0120] The control unit (200) can control the rotation of the auxiliary wheel device (100) based on a signal detected by the position detection sensor (510). For example, when the position movement of the buffer structure (170) is detected by the position detection sensor (510), the control unit (200) can determine that the auxiliary wheel (130) is in contact with the ground and control the drive motor (151) so that the main body (110) no longer rotates.

[0121] The control unit (200) may limit user input to the input device (300) under specified conditions. For example, the control unit (200) may not perform manual operation mode even if user input to the input device (300) is detected if at least one of the conditions is satisfied: a speed of the motorcycle (M) detected by a speed sensor (not shown) of the motorcycle (M) exceeds a specified speed (e.g., 20 km / h) and an angle condition is greater than a specified angle (e.g., 10 degrees) detected by a motorcycle tilt sensor (not shown) that detects the tilt of the frame of the motorcycle (M).

[0122] The second input area (303) may be referred to as a parking assistance button for parking assistance. For example, the control unit (200) may perform a parking operation mode when a user input (e.g., pressure or touch) is detected for the second input area (303).

[0123] The parking operation mode refers to an operation in which the control unit (200) raises the motorcycle (M) to install a center stand for parking the motorcycle (M). For example, when a user presses the second input area (303) once, a signal detected in the second input area (303) can be transmitted to the control unit (200).

[0124] The control unit (200) can control the rotation of the auxiliary wheel device (100) based on a signal detected by the tilt sensor (530). For example, the control unit (200) can operate the drive motor (151) until the rotation angle received from the tilt sensor (530) becomes a preset angle. Referring to one embodiment (e.g., (c) of FIG. 12), for example, the control unit (200) can operate the drive motor (151) so that the angle between the main body (110) and the ground exists in a second angle range (X2). The first angle range (X1) can be 30 to 60 degrees. As the angle between the auxiliary wheel device (100) and the ground approaches 90 degrees, the motorcycle (M) can be raised.

[0125] The control unit (200) can restrict user input to the input device (300) under specified conditions. For example, the control unit (200) can maintain the angle of the main body even if a user input to the input device (300) is detected if at least one of the conditions is satisfied: a speed of the motorcycle (M) detected by a speed sensor (not shown) of the motorcycle (M) exceeds a specified speed (e.g., 0 km / h) and an angle condition is higher than a specified angle (e.g., 10 degrees) detected by a motorcycle tilt sensor (not shown) that detects the inclination of the frame of the motorcycle (M). For example, the control unit (200) may not perform the parking operation mode under the above conditions. By performing the parking operation mode under restricted conditions, the usability of the auxiliary wheel device (100) can be increased.

[0126] The third input area (304) may be referred to as a power button. For example, the control unit (200) may change the intensity of the current transmitted to the auxiliary wheel device (100) based on a user input to the third input area (304). When the user presses the third input area (304) once, the control unit (200) may change the auxiliary wheel device (100) to a use mode. For example, when the auxiliary wheel device (100) is changed to a use mode, power may be supplied to at least a portion of the motorcycle auxiliary system (10) (e.g., the auxiliary wheel device (100), the first input area (302), and / or the second input area (303)).

[0127] In another embodiment, the third input area (304) may be omitted. For example, when the Key of the motorcycle (M) is turned ON, a relay contact installed between the battery (B) and the control unit (200) is operated by an ACC signal, thereby supplying power to at least a part of the motorcycle auxiliary system (10), and when the Key of the motorcycle (M) is turned OFF, power to the motorcycle auxiliary system (10) may be cut off by the return of the relay contact due to the blocking of the ACC signal.

[0128] In one embodiment, the control unit (200) can perform automatic operation. The input device (300) can include an automatic operation button (not shown). When a user input is detected on the automatic operation button, the control unit (200) can execute an automatic operation mode. For example, the control unit (200) can control the auxiliary wheel device (100) so that the auxiliary wheel device (100) lands on the ground or returns to its original position under a specified condition. In one embodiment, when the speed detected by the speed sensor of the motorcycle (M) is lower than a specified speed (e.g., 20 km / h), the control unit (200) can operate the drive motor (151) to tilt the main body (110) so that the auxiliary wheel (130) comes into contact with the ground. When the speed detected by the speed sensor of the motorcycle (M) exceeds a specified speed (e.g., 20 km / h), the control unit (200) can operate the drive motor (151) to rotate the main body (110) so that the auxiliary wheel (130) is separated from the ground.

[0129] In one embodiment, when the tilt information of the motorcycle (M) detected by the motorcycle tilt sensor exceeds a preset value, the control unit (200) can operate the drive motor (151) to rotate the main body (110) so that the auxiliary wheel (130) comes into contact with the ground. When the tilt information of the motorcycle (M) detected by the motorcycle tilt sensor is less than a preset value, the control unit (200) can operate the drive motor (151) to rotate the main body (110) so that the auxiliary wheel (130) is separated from the ground.

[0130] In one embodiment, the control unit (200) may operate the drive motor (151) to rotate the auxiliary wheel device (100) so that it contacts the ground when the speed detected by the speed sensor is below a set safe speed and the inclination value of the motorcycle (M) received from the motorcycle inclination sensor exceeds a set value. By operating the control unit (200), the convenience of the user of the motorcycle (M) in a traffic jam condition may be increased.

[0131] In one embodiment, even if the speed information received from the speed sensor is below a safe speed, the control unit (200) may determine that the situation is dangerous if the speed information received from the speed sensor corresponds to a sudden stop or acceleration, and may restrict the operation of the drive motor (151).

[0132] In one embodiment, even if the speed information received from the speed sensor is below a safe speed, if the inclination information received from the motorcycle inclination sensor is above a preset inclination, the control unit (200) may determine that the situation is dangerous due to a sudden tilt of the motorcycle (M) and may restrict the operation of the drive motor (151). In this case, the control unit (200) may turn on a lamp to notify the outside world of the current dangerous situation.

[0133] By limiting the operation of the drive motor (151) under specified conditions by the control unit (200), accidents in dangerous situations (e.g., sharp cornering, rapid acceleration, and / or rapid deceleration, such as at a roundabout) can be prevented. In an embodiment not shown, the motorcycle (M) and / or the auxiliary wheel device (100) include a gyro sensor and / or a GPS receiver, and the control unit (200) can further use information detected by the gyro sensor and / or the GPS receiver to control the rotation of the drive motor (151).

[0134] In one embodiment, the control unit (200) can execute a balance maintenance mode. For example, the input device (300) can include a balance maintenance button (not shown). When a user input is detected on the balance maintenance button, the control unit (200) can execute the balance maintenance mode. For example, the control unit (200) can operate the drive motor (151) based on a signal detected by the balance maintenance button to rotate the main body (110) so that the auxiliary wheel (130) contacts the ground. By rotating the auxiliary wheel device (100) in the balance maintenance mode, user convenience can be increased on an inclined ground.

[0135] In one embodiment, the control unit (200) may be able to control the driving motor (151) to automatically maintain the balance of the motorcycle (M) when the tilt information received from the motorcycle tilt sensor (e.g., gyro sensor) exceeds preset reference information, even if the user does not provide an input to the balance maintenance button.

[0136] In one embodiment, the control unit (200) can control the motorcycle (M) to be unusable when the key is turned off by setting it to be usable when power supply is possible in the starting state to prevent discharge. In this way, the present invention has the effect of controlling the main body (110) to land on the ground during parking or stopping, thereby preventing the motorcycle (M) from falling over arbitrarily during parking or stopping.

[0137] The output device (400) can provide information about the motorcycle assistance system (10) to the user. In one embodiment, the screen (401) of the output device (400) may be a display mounted on the motorcycle (M). In another embodiment, the screen (401) of the output device (400) may be an application screen of an external device (e.g., a user's smartphone) communicatively connected to the control unit (200) using a communication module (600).

[0138] In one embodiment, the output device (400) can guide the user on whether or not to allow manual operation mode. For example, if the speed of the motorcycle (M) detected by the speed sensor (not shown) of the motorcycle (M) is below a stable speed (e.g., 20 km / h), the control unit (200) can light a lamp using the first output area (403) that provides a designated color (e.g., green) or output a beep sound using the sound output device. The user can recognize that the stable speed has been reached based on the color and / or sound and provide a user input to the second input area (303).

[0139] The output device (400) can display the power status of the auxiliary wheel device (100). For example, the output device (400) can include a first output area (402) for guiding the user about the power on / off status of the auxiliary wheel device (100). In one embodiment, the control unit (200) can provide the output device (400) with a signal for outputting a red light in the first output area (402) when the auxiliary wheel device (100) is determined to be in an on state. In one embodiment, the control unit (200) can provide the output device (400) with a signal for outputting a green light in the first output area (402) when the auxiliary wheel device (100) is determined to be in an off state in a starting state of the motorcycle (M). In one embodiment, the first output area (402) can include text for guiding the user that it is an output area regarding the power status.

[0140] The output device (400) can indicate whether the operation of the auxiliary wheel device (100) (e.g., manual operation mode) is possible. For example, if the control unit (200) determines that the operation of the manual operation mode of the auxiliary wheel device (100) is possible, the control unit (200) can provide a signal to the output device (400) for outputting a green light in the second output area (403). If the control unit (200) determines that the operation of the auxiliary wheel device (100) is impossible, the control unit (200) can provide a signal to the output device (400) for outputting a red light in the second output area (403). The control unit (200) can determine whether the operation of the auxiliary wheel device (100) is possible based on information detected by the sensor device (500). For example, the control unit (200) can determine whether the operation of the auxiliary wheel device (100) is possible based on the speed of the motorcycle (M) and / or the incline of the motorcycle (M). In one embodiment, the second output area (403) may include text to guide the user that this is an output area for use of the assist wheel device (100).

[0141] The output device (400) can guide the user as to whether the first auxiliary wheel device (100a) and the second auxiliary wheel device (100b) are in contact with the ground. For example, the output device (400) can include a third output area (404) for guiding whether the first auxiliary wheel device (100a) is in contact with the ground, and a fourth output area (405) for guiding whether the second auxiliary wheel device (100a) is in contact with the ground.

[0142] The control unit (200) can change the color of the third output area (404) based on a signal detected by the position detection sensor (510) mounted on the first auxiliary wheel device (100a). The control unit (200) can change the color of the fourth output area (405) based on a signal detected by the position detection sensor (510) mounted on the second auxiliary wheel device (100b). For example, when the control unit (200) determines that the auxiliary wheel (130) of the first auxiliary wheel device (100a) is in contact with the ground, the control unit (200) can provide a signal to the output device (400) for outputting red light from the third output area (404), and when the auxiliary wheel (130) of the first auxiliary wheel device (100a) is determined to be substantially perpendicular to the ground (e.g., origin state), the control unit (200) can provide a signal to the output device (400) for outputting green light from the third output area (404). When the control unit (200) determines that the auxiliary wheel (130) of the second auxiliary wheel device (100b) is in contact with the ground, the control unit (200) may provide a signal to the output device (400) for outputting red light in the fourth output area (405), and when the auxiliary wheel (130) of the second auxiliary wheel device (100b) is determined to be in a state substantially perpendicular to the ground (e.g., an origin state), the control unit (200) may provide a signal to the output device (400) for outputting green light in the fourth output area (405). In one embodiment, the third output area (404) and the fourth output area (405) may include characters to guide the user that they are output areas regarding the contact of the left and right sides of the auxiliary wheel device (100), respectively.

[0143] The output device (400) can indicate whether the operation of the auxiliary wheel device (100) (e.g., parking operation mode) is possible. For example, if the control unit (200) determines that the operation of the parking operation mode of the auxiliary wheel device (100) is possible, the control unit (200) can provide a signal to the output device (400) to output a red light in the fifth output area (406). If the control unit (200) determines that the operation of the auxiliary wheel device (100) is impossible, the control unit (200) can not light the light in the fifth output area (406). The control unit (200) can determine whether the operation of the parking operation mode of the auxiliary wheel device (100) is possible based on information detected by the sensor device (500). For example, the control unit (200) can determine whether the operation of the auxiliary wheel device (100) is possible based on the speed of the motorcycle (M) and / or the inclination of the motorcycle (M). In one embodiment, the fifth output area (406) may include text to guide the user that this is an output area for use of the assist wheel device (100).

[0144] The output device (400) can display the battery status of the motorcycle (M) and / or the auxiliary wheel device (100). For example, the control unit (200) can provide a signal to the output device (400) to output a red light in the sixth output area (407) when the power amount of the battery of the auxiliary wheel device (100) is less than a specified amount. The control unit (200) can not light the light in the sixth output area (407) when the power amount of the battery of the auxiliary wheel device (100) is greater than a specified amount.

[0145] The control unit (200) may generate a signal to store the rotation angle of the main body (110) in the memory when a designated gesture (e.g., a motion of pressing at least one of the plurality of input areas (302, 303, 304) of the input device (300) for a designated period of time) is detected. In one embodiment, the control unit (200) may rotate the main body (110) by the designated rotation angle in a manual operation when the rotation angle of the main body (110) is stored. The rotation angle of the main body (110) may be stored only when the position detection sensor (510) is not in operation.

[0146]

[0147] While the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it will be apparent to those skilled in the art that various modifications and variations are possible without departing from the technical spirit of the present invention as set forth in the claims. For example, the present invention can be implemented by deleting some components from the aforementioned embodiments, and the embodiments can also be implemented in combination with each other.

[0148] The motorcycle assistance system according to the embodiment of the present disclosure can be used in a system that improves driving stability and enhances driver convenience, including an auxiliary wheel device comprising a main body, a main body rotation shaft, an auxiliary wheel, a rotation means, and a coupling bracket. In particular, it has high applicability in the traffic safety industry, logistics and delivery industry, and automobile and motorcycle manufacturing industries.

Claims

1. An auxiliary wheel device including a main body, a main body rotation axis installed to be rotatable on one longitudinal side of the main body, an auxiliary wheel installed to be rotatable on the other longitudinal side of the main body, a rotation means located inside the main body and configured to rotate the main body rotation axis, and a coupling bracket connected to the main body rotation axis and configured to be connected to the frame of a motorcycle; and A control unit configured to control the above rotating means, The above rotation means includes a drive motor arranged within the main body, and a gear member configured to be moved by the drive motor and to rotate the main body rotation shaft. A motorcycle assistance system wherein the main body is configured to move relative to the frame based on the movement of the rotation means by the control unit.

2. In paragraph 1, A motorcycle auxiliary system, wherein the coupling bracket comprises a first connecting portion having an insertion hole formed therein configured to receive an end of the main body rotation shaft, and a second connecting portion having a frame fastening hole formed therein opposite to the first connecting portion and configured to be fastened to the frame of the motorcycle.

3. In paragraph 1, The auxiliary wheel device further includes a connecting structure connecting the coupling bracket and the main body rotation axis, A motorcycle auxiliary system comprising a gap adjusting portion configured to be fastened to the coupling bracket, a height adjusting portion connected to the gap adjusting portion, and a moving block inserted into the height adjusting portion and configured to move relatively to the height adjusting portion and connected to the main body rotation axis.

4. In paragraph 1, The above auxiliary wheel device further includes a buffer structure configured to reduce impact caused by contact between the auxiliary wheel and the ground, The above buffer structure A wheel caster connected to the other side of the above body; A cam follower connected to the rotation axis of the above auxiliary wheel; A fixed part protruding from the above wheel caster; an elastic member connected to the cam follower and the fixed part; and A motorcycle auxiliary system comprising a bearing link having a first end rotatably connected to the wheel caster and a second end opposite the first end and having a guide hole formed therein for accommodating the cam follower.

5. In paragraph 4, The auxiliary wheel device further includes a sensor device including a position detection sensor configured to detect rotation of the bearing link, A motorcycle auxiliary system wherein the control unit is configured to control the rotation means based on information detected by the position detection sensor.

6. In paragraph 1, Further comprising a sensor device including an inclination sensor installed within the main body and configured to detect a rotation angle of the main body, A motorcycle assistance system wherein the control unit is configured to control the rotation means based on the rotation angle of the main body detected by the tilt sensor.

7. In paragraph 1, The auxiliary wheel device includes a first auxiliary wheel device and a second auxiliary wheel device spaced apart from the first auxiliary wheel device, A motorcycle auxiliary system wherein the control unit is configured to independently control the first auxiliary wheel device and the second auxiliary wheel device.

8. In paragraph 7, Further comprising an output device configured to provide information of the motorcycle assistance system to the user, A motorcycle assistance system wherein the output device is configured to inform the user of at least one of the availability of a manual operation mode, a power status of the auxiliary wheel device, a ground contact status of the first auxiliary wheel device, a ground contact status of the second auxiliary wheel device, the availability of a parking operation mode of the auxiliary wheel device, and a battery status of the auxiliary wheel device.

9. In paragraph 1, Further comprising an input device comprising a plurality of input areas configured to obtain user input, A motorcycle assistance system wherein the control unit is configured to rotate the main body based on the user input obtained from at least some of the plurality of input areas.

10. In paragraph 9, A motorcycle assistance system further comprising a speed sensor configured to detect a speed of the motorcycle and a motorcycle tilt detection sensor configured to detect a tilt of the motorcycle.

11. In paragraph 10, A motorcycle assistance system wherein the control unit is configured to maintain the angle of the main body even when the user input is detected in the plurality of input areas based on at least one of the speed of the motorcycle detected by the speed sensor and the inclination of the motorcycle detected by the motorcycle inclination detection sensor.

12. Body; A main body rotation axis installed so as to be rotatable on one side of the longitudinal direction of the main body; An auxiliary wheel installed rotatable on the longitudinal side of the main body; A rotating means located inside the main body and configured to rotate the main body rotation axis; and A coupling bracket is connected to the above main body rotation axis and configured to be connected to the frame of the motorcycle, The above rotation means is an auxiliary wheel device including a drive motor arranged within the main body, and a gear member configured to be moved by the drive motor and rotate the main body rotation axis.

13. In paragraph 12, The auxiliary wheel device further includes a connecting structure connecting the coupling bracket and the main body rotation axis, The above connecting structure is an auxiliary wheel device including a gap adjusting part configured to be fastened to the connecting bracket, a height adjusting part connected to the gap adjusting part, and a moving block inserted into the height adjusting part and configured to move relatively to the height adjusting part and connected to the main body rotation axis.

14. In paragraph 12, Further comprising a buffer structure configured to reduce impact caused by contact between the auxiliary wheel and the ground, The above buffer structure A wheel caster connected to the other side of the above body; A cam follower connected to the rotation axis of the above auxiliary wheel; A fixed part protruding from the above wheel caster; an elastic member connected to the cam follower and the fixed part; and An auxiliary wheel device comprising a bearing link having a first end rotatably connected to the wheel caster and a second end opposite the first end and having a guide hole formed therein for accommodating the cam follower.

15. In paragraph 14, An auxiliary wheel device further comprising a sensor device including a position detection sensor configured to detect rotation of the bearing link.

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