Bicycle derailleur and method for controlling bicycle derailleur

Abstract

A bicycle derailleur includes a base member, a movable member, a motor unit, and a controller. The controller is configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in a first shifting direction. The controller is configured to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in a second shifting direction. The first maximum voltage is different from the second maximum voltage.

Description

[0001] This application is a divisional application of the Chinese patent application with the application date of September 9, 2021, application number 2021110561411, and invention name “Bicycle derailleur and method for controlling bicycle derailleur”. Technical Field

[0002] The present invention relates to a bicycle derailleur and a method of controlling a bicycle derailleur. Background Art

[0003] A bicycle includes a derailleur configured to move a chain relative to a plurality of sprockets. Summary of the Invention

[0004] According to a first aspect of the present invention, a bicycle derailleur includes a base member, a movable member, a motor unit, and a controller. The movable member is configured to be movably coupled to the base member. The movable member is movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction. The movable member is movable relative to the base member from the first gear position to a second gear position to move the chain in a second shifting direction, the second shifting direction being opposite to the first shifting direction. The motor unit is configured to move the movable member relative to the base member between the first gear position and the second gear position. The controller is configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in the first shifting direction. The controller is configured to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in the second shifting direction. The first maximum voltage is different from the second maximum voltage.

[0005] With the bicycle derailleur in accordance with the first aspect, the first maximum voltage and the second maximum voltage can be made different based on the specifications and / or structure of the bicycle derailleur.

[0006] According to a second aspect of the present invention, the bicycle derailleur according to the first aspect is configured so that the gear ratio is defined as the quotient obtained by dividing the total number of teeth of the bicycle front sprocket by the total number of teeth of the bicycle rear sprocket. The gear ratio includes a first gear ratio and a second gear ratio that is smaller than the first gear ratio. In a first shifting operation, the gear ratio changes from the second gear ratio to the first gear ratio. In a second shifting operation, the gear ratio changes from the first gear ratio to the second gear ratio. The first maximum voltage is higher than the second maximum voltage.

[0007] With the bicycle derailleur in accordance with the second aspect, it is possible to increase or decrease the maximum voltage when the gear ratio increases or decreases during a shifting operation.

[0008] According to a third aspect of the present invention, the bicycle derailleur according to the first aspect is configured so that the gear ratio is defined as the quotient obtained by dividing the total number of teeth of the bicycle front sprocket by the total number of teeth of the bicycle rear sprocket. The gear ratio includes a first gear ratio and a second gear ratio that is smaller than the first gear ratio. In a first shifting operation, the gear ratio changes from the second gear ratio to the first gear ratio. In a second shifting operation, the gear ratio changes from the first gear ratio to the second gear ratio. The first maximum voltage is lower than the second maximum voltage.

[0009] With the bicycle derailleur in accordance with the third aspect, it is possible to reduce the maximum voltage when the gear ratio increases during a shifting operation.

[0010] In accordance with a fourth aspect of the present invention, the bicycle derailleur according to any one of the first to third aspects is configured so that the motor unit is configured to move the movable member relative to the base member in a first shifting operation without stopping the movable member. The motor unit is configured to move the movable member relative to the base member in a second shifting operation without stopping the movable member.

[0011] With the bicycle derailleur in accordance with the fourth aspect, it is possible to make the first shifting operation and the second shifting operation smooth.

[0012] According to a fifth aspect of the present invention, the bicycle derailleur according to any one of the first to fourth aspects is configured so that the controller is configured to control the power supplied to the motor unit to a first power amount when the motor unit moves the movable member relative to the base member in a first shifting operation. The controller is configured to control the power supplied to the motor unit to a second power amount when the motor unit moves the movable member relative to the base member in a second shifting operation. The first power amount is different from the second power amount.

[0013] With the bicycle derailleur in accordance with the fifth aspect, the first amount of electric power and the second amount of electric power can be made different based on the specifications and / or structure of the bicycle derailleur.

[0014] In accordance with a sixth aspect of the present invention, the bicycle derailleur according to the fifth aspect is configured so that the first amount of electric power is greater than the second amount of electric power.

[0015] With the bicycle derailleur in accordance with the sixth aspect, it is possible to increase the first amount of electric power in a first shifting operation and / or reduce the second amount of electric power in a second shifting operation.

[0016] In accordance with a seventh aspect of the present invention, the bicycle derailleur according to the fifth aspect is configured so that the first amount of electric power is smaller than the second amount of electric power.

[0017] With the bicycle derailleur in accordance with the seventh aspect, it is possible to reduce the first amount of electric power in a first shifting operation and / or increase the second amount of electric power in a second shifting operation.

[0018] According to an eighth aspect of the present invention, the bicycle derailleur according to any one of the first to seventh aspects is configured so that the controller is configured to control the motor unit to move the movable member relative to the base member based on gear region information related to a gear corresponding region defined between a first gear position and a second gear position. The controller is configured to control the motor unit to adjust the position of the movable member based on overtravel information related to an overtravel region. The overtravel region includes an area at least partially outside the gear corresponding region.

[0019] With the bicycle derailleur according to the eighth aspect, the overtravel region can be used to push the chain against the sprocket, thereby facilitating the first shifting operation and / or the second shifting operation.

[0020] According to a ninth aspect of the present invention, the bicycle derailleur according to any one of the first to eighth aspects is configured so that the controller is configured to control the motor unit to move the movable member at a third maximum voltage based on gear position information of an additional derailleur, the additional derailleur being a derailleur separate from the bicycle derailleur, so as to adjust the position of the movable member. The third maximum voltage is lower than the first maximum voltage.

[0021] With the bicycle derailleur in accordance with the ninth aspect, the third maximum voltage can be adjusted according to the moving speed of the chain guide of the additional derailleur.

[0022] According to a tenth aspect of the present invention, the bicycle derailleur according to the eighth aspect is configured so that the controller is configured to, if the gear region information satisfies a first adjustment condition, control the motor unit to move the movable member relative to the base member in the first shifting direction by a first adjustment distance. The controller is configured to control the motor unit to move the movable member relative to the base member in the second shifting direction by a first return distance after moving the movable member in the first shifting direction by the first adjustment distance. The first return distance is based on the overtravel information.

[0023] With the bicycle derailleur in accordance with the tenth aspect, the first gear shifting operation can be reliably facilitated.

[0024] According to an eleventh aspect of the present invention, the bicycle derailleur according to the eighth aspect is configured so that the controller is configured to, if the gear region information satisfies a second adjustment condition, control the motor unit to move the movable member relative to the base member in the second shifting direction by a second adjustment distance. The controller is configured to control the motor unit to move the movable member relative to the base member in the first shifting direction by a second return distance after moving the movable member in the second shifting direction by the second adjustment distance. The second return distance is based on the overtravel information.

[0025] With the bicycle derailleur in accordance with the eleventh aspect, the second shifting operation can be reliably facilitated.

[0026] In accordance with a twelfth aspect of the present invention, the bicycle derailleur according to any one of the first to eleventh aspects is configured so that the controller is configured to alter at least one of the first maximum voltage and the second maximum voltage based on power supply information related to a power supply configured to supply power to the bicycle derailleur.

[0027] With the bicycle derailleur in accordance with the twelfth aspect, it is possible to save power consumption of the power source depending on the state of the power source.

[0028] According to a thirteenth aspect of the present invention, the bicycle derailleur according to the twelfth aspect is configured so that the power supply information includes a remaining level of the power supply. If the remaining level of the power supply is lower than a remaining level threshold, the controller is configured to reduce the higher one of the first maximum voltage and the second maximum voltage.

[0029] With the bicycle derailleur in accordance with the thirteenth aspect, if the remaining level of the power source is lower than the remaining level threshold value, it is possible to save power consumption of the power source.

[0030] According to a fourteenth aspect of the present invention, the bicycle derailleur according to the twelfth aspect is configured so that the power supply information includes a remaining level of power. If the remaining level of power is lower than a remaining level threshold, the controller is configured to reduce the lower one of the first maximum voltage and the second maximum voltage.

[0031] With the bicycle derailleur in accordance with the fourteenth aspect, if the remaining level of the power source is lower than the remaining level threshold value, it is possible to save power consumption of the power source.

[0032] According to a fifteenth aspect of the present invention, the bicycle derailleur according to any one of the twelfth to fourteenth aspects is configured so that the power supply information includes a remaining level of power. The controller is configured to change at least one of the first maximum voltage and the second maximum voltage in accordance with the remaining level of power so that a ratio of the higher of the first maximum voltage and the second maximum voltage to the lower of the first maximum voltage and the second maximum voltage is changed.

[0033] With the bicycle derailleur in accordance with the fifteenth aspect, if the remaining level of the power source is lower than the remaining level threshold value, it is possible to save power consumption of the power source.

[0034] According to a sixteenth aspect of the present invention, a method of controlling a bicycle derailleur includes controlling a motor unit to move a movable member relative to a base member in a first shifting direction at a first maximum voltage, and controlling the motor unit to move the movable member relative to the base member in a second shifting direction at a second maximum voltage different from the first maximum voltage, the second shifting direction being an opposite direction to the first shifting direction.

[0035] With the method in accordance with the sixteenth aspect, the first maximum voltage and the second maximum voltage can be made different based on the specifications and / or structure of the bicycle derailleur.

[0036] According to a seventeenth aspect of the present invention, a bicycle derailleur includes a base member, a movable member, a motor unit, and a controller. The movable member is configured to be movably coupled to the base member. The movable member is movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction. The movable member is movable relative to the base member from the first gear position to a second gear position to move the chain in a second shifting direction, the second shifting direction being opposite to the first shifting direction. The motor unit is configured to move the movable member relative to the base member between the first gear position and the second gear position. The controller is configured to control the motor unit to move the movable member relative to the base member in the first shifting direction at a first movement speed. The controller is configured to control the motor unit to move the movable member relative to the base member in the second shifting direction at a second movement speed different from the first movement speed.

[0037] With the bicycle derailleur in accordance with the seventeenth aspect, the first movement speed and the second movement speed can be made different based on the specifications and / or structure of the bicycle derailleur.

[0038] According to an eighteenth aspect of the present invention, the bicycle derailleur according to the seventeenth aspect is configured so that the gear ratio is defined as the quotient obtained by dividing the total number of teeth of the bicycle front sprocket by the total number of teeth of the bicycle rear sprocket. The gear ratio includes a first gear ratio and a second gear ratio that is smaller than the first gear ratio. During a first shifting operation of the chain in a first shifting direction, the gear ratio changes from the second gear ratio to the first gear ratio. During a second shifting operation of the chain in the second shifting direction, the gear ratio changes from the first gear ratio to the second gear ratio. The first shifting speed is higher than the second shifting speed.

[0039] With the bicycle derailleur in accordance with the eighteenth aspect, it is possible to increase or decrease the movement speed when the gear ratio is increased or decreased during a shifting operation.

[0040] According to a nineteenth aspect of the present invention, the bicycle derailleur according to the seventeenth aspect is configured so that the gear ratio is defined as the quotient obtained by dividing the total number of teeth of the bicycle front sprocket by the total number of teeth of the bicycle rear sprocket. The gear ratio includes a first gear ratio and a second gear ratio that is smaller than the first gear ratio. During a first shifting operation of the chain in a first shifting direction, the gear ratio changes from the second gear ratio to the first gear ratio. During a second shifting operation of the chain in a second shifting direction, the gear ratio changes from the first gear ratio to the second gear ratio. The first shifting speed is lower than the second shifting speed.

[0041] With the bicycle derailleur in accordance with the nineteenth aspect, it is possible to increase or decrease the movement speed when the gear ratio is increased or decreased during a shifting operation.

[0042] In accordance with a 20th aspect of the present invention, the bicycle derailleur according to any one of the 17th to 19th aspects is configured so that the first moving speed is a moving speed at which the motor unit moves the movable member in the first shifting direction relative to the base member without stopping the movable member, and the second moving speed is a moving speed at which the motor unit moves the movable member in the second shifting direction relative to the base member without stopping the movable member.

[0043] With the bicycle derailleur in accordance with the twentieth aspect, it is possible to make the first shifting operation and the second shifting operation smooth.

[0044] According to a twenty-first aspect of the present invention, the bicycle derailleur according to any one of aspects 17 to 20 is configured so that the controller is configured to control the motor unit to generate a first output power when the motor unit moves the movable member relative to the base member at a first movement speed in a first shifting direction. The controller is configured to control the motor unit to generate a second output power when the motor unit moves the movable member relative to the base member at a second movement speed in a second shifting direction. The second output power is different from the first output power.

[0045] With the bicycle derailleur in accordance with the twenty-first aspect, the first output power and the second output power can be made different based on the specifications and / or structure of the bicycle derailleur.

[0046] According to a twenty-second aspect of the present invention, the bicycle derailleur according to any one of aspects 17 to 21 is configured so that the controller is configured to control the power supplied to the motor unit to a first amount of electric power when the motor unit moves the movable member relative to the base member in a first shifting operation of the chain in a first shifting direction. The controller is configured to control the power supplied to the motor unit to a second amount of electric power when the motor unit moves the movable member relative to the base member in a second shifting operation of the chain in a second shifting direction. The first amount of electric power is different from the second amount of electric power.

[0047] With the bicycle derailleur in accordance with the twenty-second aspect, the first electric power amount and the second electric power amount can be made different based on the specifications and / or structure of the bicycle derailleur.

[0048] In accordance with a twenty-third aspect of the present invention, the bicycle derailleur according to the twenty-second aspect is configured so that the first amount of electric power is greater than the second amount of electric power.

[0049] With the bicycle derailleur in accordance with the twenty-third aspect, it is possible to increase the first amount of electric power in a first shifting operation and / or reduce the second amount of electric power in a second shifting operation.

[0050] In accordance with a twenty-fourth aspect of the present invention, the bicycle derailleur according to the twenty-second aspect is configured so that the first amount of electric power is smaller than the second amount of electric power.

[0051] With the bicycle derailleur in accordance with the twenty-fourth aspect, it is possible to reduce the first amount of electric power in a first shifting operation and / or increase the second amount of electric power in a second shifting operation.

[0052] According to a twenty-fifth aspect of the present invention, the bicycle derailleur according to any one of aspects 17 to 24 is configured so that the controller is configured to control the motor unit to move the movable member relative to the base member based on gear region information related to a gear corresponding region defined between a first gear position and a second gear position. The controller is configured to control the motor unit to adjust the position of the movable member based on overtravel information related to an overtravel region. The overtravel region includes a region at least partially outside the gear corresponding region.

[0053] With the bicycle derailleur according to the twenty-fifth aspect, the overtravel region can be used to push the chain against the sprocket. Therefore, the first shifting operation and / or the second shifting operation can be facilitated.

[0054] According to a twenty-sixth aspect of the present invention, the bicycle derailleur according to any one of the seventeenth to twenty-fifth aspects is configured so that the controller is configured to control the motor unit to move the movable member at a third movement speed based on gear position information of an additional derailleur so as to adjust the position of the movable member, the additional derailleur being a derailleur separate from the bicycle derailleur. The third movement speed is lower than the first movement speed.

[0055] With the bicycle derailleur in accordance with the twenty-sixth aspect, the third moving speed can be adjusted according to the moving speed of the chain guide of the additional derailleur.

[0056] According to a twenty-seventh aspect of the present invention, the bicycle derailleur according to the twenty-fifth aspect is configured so that the controller is configured to, if the gear region information satisfies the first adjustment condition, control the motor unit to move the movable member relative to the base member at a first movement speed by a first adjustment distance. The controller is configured to control the motor unit to move the movable member relative to the base member at a second movement speed by a first return distance after moving the movable member at the first movement speed by the first adjustment distance. The first return distance is based on the overtravel information.

[0057] With the bicycle derailleur in accordance with the twenty-seventh aspect, the first gear shifting operation can be reliably facilitated.

[0058] In accordance with a twenty-eighth aspect of the present invention, the bicycle derailleur according to the twenty-seventh aspect is configured so that the first moving speed is higher than the second moving speed.

[0059] With the bicycle derailleur in accordance with the twenty-eighth aspect, it is possible to increase the first movement speed in the first shifting operation and / or decrease the second movement speed in the second shifting operation.

[0060] In accordance with a twenty-ninth aspect of the present invention, the bicycle derailleur according to the twenty-seventh aspect is configured so that the first moving speed is lower than the second moving speed.

[0061] With the bicycle derailleur in accordance with the twenty-ninth aspect, it is possible to decrease the first movement speed in the first shifting operation and / or increase the second movement speed in the second shifting operation.

[0062] According to a 30th aspect of the present invention, the bicycle derailleur according to any one of aspects 25 to 29 is configured so that the controller is configured to, if the gear region information satisfies a second adjustment condition, control the motor unit to move the movable member relative to the base member at a second movement speed by a second adjustment distance. The controller is configured to control the motor unit to move the movable member relative to the base member at the first movement speed by a second return distance after moving the movable member at the second movement speed by the second adjustment distance. The second return distance is based on the overtravel information.

[0063] With the bicycle derailleur in accordance with the thirtieth aspect, the second shifting operation can be reliably facilitated.

[0064] In accordance with a thirty-first aspect of the present invention, the bicycle derailleur according to the thirtieth aspect is configured so that the first moving speed is higher than the second moving speed.

[0065] With the bicycle derailleur in accordance with the thirty-first aspect, it is possible to increase the first moving speed in the first shifting operation and / or decrease the second moving speed in the second shifting operation.

[0066] In accordance with a thirty-second aspect of the present invention, the bicycle derailleur according to the thirtieth aspect is configured so that the first moving speed is lower than the second moving speed.

[0067] With the bicycle derailleur in accordance with the thirty-second aspect, it is possible to decrease the first movement speed in the first shifting operation and / or increase the second movement speed in the second shifting operation.

[0068] In accordance with a thirty-third aspect of the present invention, the bicycle derailleur according to any one of aspects 17 to 32 is configured so that a first direction operation time is defined as a time from when the motor unit starts moving the movable member relative to the base member in the first shift direction from the second gear position toward the first gear position to when the motor unit stops moving the movable member in the first gear position. A second direction operation time is defined as a time from when the motor unit starts moving the movable member relative to the base member in the second shift direction from the first gear position toward the second gear position to when the motor unit stops moving the movable member in the second gear position. The first direction operation time is different from the second direction operation time.

[0069] With the bicycle derailleur in accordance with the thirty-third aspect, the first direction operation time and the second direction operation time can be made different based on the specifications and / or structure of the bicycle derailleur.

[0070] According to a thirty-fourth aspect of the present invention, a method of controlling a bicycle derailleur includes controlling a motor unit to move a movable member relative to a base member in a first shifting direction at a first moving speed, and controlling the motor unit to move the movable member relative to the base member in a second shifting direction at a second moving speed different from the first moving speed, the second shifting direction being an opposite direction to the first shifting direction.

[0071] With the method in accordance with the thirty-fourth aspect, it is possible to make the first movement speed and the second movement speed different based on the specifications and / or structure of the bicycle derailleur. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] A more complete summary of the present invention and many of its attendant advantages will be readily obtained and better understood when reference is made to the following detailed description when considered in conjunction with the accompanying drawings.

[0073] Figure 1 is a side elevation view of a bicycle including a bicycle derailleur in accordance with one embodiment.

[0074] Figure 2 yes Figure 1 A side elevation view of a bicycle derailleur for the bicycle illustrated in FIG.

[0075] Figure 3 yes Figure 2 The bicycle derailleur shown in the figure is a front view.

[0076] Figure 4 yes Figure 2 A perspective view of a bicycle derailleur is shown in FIG.

[0077] Figure 5 yes Figure 2 A perspective view of a motor unit for a bicycle derailleur is shown in FIG.

[0078] Figure 6 yes Figure 2 Exploded perspective view of a motor unit of a bicycle derailleur shown in FIG.

[0079] Figure 7 yes Figure 1 Schematic block diagram of a bicycle shown in FIG.

[0080] Figure 8 yes Figure 1 Side elevation view of the additional derailleur for the bicycle shown in FIG.

[0081] Figure 9 It shows Figure 8 The timing diagram of the shifting operation of the additional derailleur is shown in FIG.

[0082] Figure 10 It shows Figure 2 The timing diagram of the shifting operation of the bicycle derailleur is shown in FIG.

[0083] Figure 11 It shows Figure 2 1 is a timing diagram of the shifting operation of the bicycle derailleur (variant) illustrated in FIG.

[0084] Figure 12 yes Figure 1 Schematic diagram of the transmission system of a bicycle shown in FIG.

[0085] Figure 13 It shows Figure 2 The timing diagram of the adjustment operation of the bicycle derailleur is shown in FIG.

[0086] Figure 14 It shows Figure 2 The timing diagram of the adjustment operation of the bicycle derailleur is shown in FIG.

[0087] Figure 15 It shows Figure 2 The figure shows a timing diagram of the ratio change operation of a bicycle derailleur.

[0088] Figure 16 It shows Figure 2 The timing diagram of the overtravel operation of a bicycle derailleur is shown in FIG. DETAILED DESCRIPTION

[0089] The embodiments will now be described with reference to the accompanying drawings, wherein like reference numerals designate corresponding or identical elements throughout the various views.

[0090] like Figure 1As shown, a bicycle 2 includes a bicycle derailleur 10 according to one embodiment. In this embodiment, the bicycle 2 comprises a road bicycle. However, the bicycle 2 may comprise a mountain bike, a city bike, a tricycle, a cargo bike, a recumbent bike, or any other type of bicycle. In this embodiment, the bicycle derailleur 10 comprises a front derailleur. However, the structure of the bicycle derailleur 10 may be applied to other derailleurs, such as a rear derailleur.

[0091] The bicycle 2 also includes a bicycle frame 2A, a seat 2B, handlebars 2C, an operating device 3, an operating device 4, a drive train DT, and a power supply PS. The operating devices 3 and 4 are configured to be mounted to the handlebars 2C. The drive train DT includes a crank CR, a front sprocket assembly FS, a rear sprocket assembly RS, a chain C, a bicycle derailleur 10, and a bicycle derailleur RD. The bicycle derailleur RD may also be referred to as an additional derailleur RD.

[0092] The front sprocket assembly FS is fixed to the crank CR and includes a bicycle front sprocket FS1 and a bicycle front sprocket FS2. The outer diameter of the bicycle front sprocket FS1 is larger than the outer diameter of the bicycle front sprocket FS2. Therefore, the bicycle front sprocket FS1 can also be called the large sprocket FS1. The bicycle front sprocket FS2 can also be called the small sprocket FS2.

[0093] The rear sprocket assembly RS is rotatably mounted to the bicycle frame 2A and includes a plurality of bicycle rear sprockets RS1 to RS7. A chain C engages with the front sprocket assembly FS and the rear sprocket assembly RS. A bicycle derailleur RD is mounted to the bicycle frame 2A and is configured to shift the chain C relative to the plurality of sprockets of the rear sprocket assembly RS to change gear positions. The bicycle derailleur 10 is configured to shift the chain C relative to the front sprockets FS1 and FS2 of the front sprocket assembly FS. The power supply PS is configured to be mounted to the bicycle frame 2A. In this embodiment, the power supply PS is configured to be mounted to the down tube of the bicycle frame 2A. However, the power supply PS may be configured to be mounted to other portions of the bicycle frame 2A, such as the seat tube. The power supply PS may also be configured to be mounted directly to other devices, such as the bicycle derailleur 10 or RD.

[0094] The bicycle derailleur RD is configured to be operated using an operating device 3. The bicycle derailleur 10 is configured to be operated using an operating device 4. In this embodiment, the bicycle derailleur RD is electrically connected to the operating devices 3 and 4 via a wireless communication channel. The bicycle derailleur RD is electrically connected to the power supply PS via an electrical cable EC1 of the electrical wiring structure EC. The bicycle derailleur 10 is electrically connected to the power supply PS via an electrical cable EC2 of the electrical wiring structure EC. The power supply PS is configured to supply power to the bicycle derailleur 10 and RD via the electrical cables EC2 and EC1. For example, the bicycle derailleur 10 and RD, and the power supply PS, are configured to communicate with each other using power line communication (PLC). However, the bicycle derailleur 10 and RD, and the power supply PS, may be configured to communicate with each other using other communication methods, such as wireless communication. At least one of the operating devices 3 and 4 may be configured to communicate with at least one of the bicycle derailleur 10 and RD, and the power supply PS, via a wired communication channel.

[0095] In this embodiment, the bicycle derailleur RD is configured to wirelessly communicate with the operating devices 3 and 4. The bicycle derailleur RD is configured to receive control signals wirelessly transmitted from each of the operating devices 3 and 4. The bicycle derailleur 10 is configured to communicate with the bicycle derailleur RD via a power supply PS and an electrical wiring structure EC. The bicycle derailleur RD is configured to transmit the control signals wirelessly received by the bicycle derailleur RD from the operating device 4 to the bicycle derailleur 10 via the power supply PS and the electrical wiring structure EC.

[0096] However, the configuration of the bicycle 2 is not limited to the above. For example, each of the bicycle derailleur 10 and RD can be electrically connected to the power supply PS via an electrical wiring structure EC and an additional device such as a junction box 6. If the bicycle derailleur 10 includes multiple connection ports, each of the bicycle derailleur RD and the power supply PS can be electrically connected to the bicycle derailleur 10 via electrical cables EC1 and EC2. If the bicycle derailleur RD includes multiple connection ports, each of the bicycle derailleur 10 and the power supply PS can be electrically connected to the bicycle derailleur RD via electrical cables EC2 and EC1. If the power supply PS is directly mounted to one of the bicycle derailleur 10 and RD, the bicycle derailleur 10 can be electrically connected to the bicycle derailleur RD via electrical cables EC1 or EC2. Furthermore, the bicycle derailleur RD can be connected to at least one of the operating devices 3 and 4 via an electrical cable, rather than using wireless communication. Furthermore, the bicycle derailleur 10 can be electrically connected to at least one of the operating devices 3 and 4 via a wireless communication channel.

[0097] In this application, the following directional terms "front," "rear," "forward," "backward," "left," "right," "lateral," "upward," and "downward," and any other similar directional terms, refer to those directions determined with reference to a user (e.g., a rider) in a standard position of the user (e.g., on the saddle 2B or seat) in the bicycle 2 and facing the handlebars 2C. Therefore, these terms, as used to describe the bicycle derailleur 10 or other components, should be interpreted relative to the bicycle 2 equipped with the bicycle derailleur 10 as used in an upright riding position on a horizontal plane.

[0098] like Figure 2 As shown, the bicycle derailleur 10 includes a base member 12. The base member 12 is configured to be mounted to a bicycle frame 2A. The bicycle derailleur 10 is configured to be coupled to the bicycle frame 2A via at least one of a mounting fastener 7 and a clamp 8. The bicycle derailleur 10 is coupled to the clamp 8 via the mounting fastener 7. However, if needed and / or desired, another mounting structure may be suitable for the bicycle derailleur 10.

[0099] The bicycle derailleur 10 includes a movable member 14. The movable member 14 is configured to be movably coupled to the base member 12. The movable member 14 includes a chain guide 18. In the case where the bicycle derailleur 10 is a rear derailleur, the movable member 14 includes a movable body and a chain guide pivotally coupled to the movable body.

[0100] like Figure 3 As shown, the chain guide 18 includes a first guide member 18A and a second guide member 18B. The first guide member 18A is configured to guide the chain C in the first shifting direction D11. The second guide member 18B is configured to guide the chain C in the second shifting direction D12. The second guide member 18B is spaced apart from the first guide member 18A in the first shifting direction D11. The second guide member 18B is coupled to the first guide member 18A.

[0101] The bicycle derailleur 10 includes a linkage structure 20. The linkage structure 20 is configured to movably couple the chain guide 18 to the base member 12. The linkage structure 20 includes a first link member 22 and a second link member 24. The first link member 22 is pivotally coupled to the base member 12 about a first pivot axis PA1. The second link member 24 is pivotally coupled to the base member 12 about a second pivot axis PA2. The first link member 22 is pivotally coupled to the chain guide 18 about a third pivot axis PA3. The second link member 24 is pivotally coupled to the chain guide 18 about a fourth pivot axis PA4.

[0102] The link structure 20 includes a first link pin 26, a second link pin 28, a third link pin 30, and a fourth link pin 32. The first link pin 26 is configured to pivotally couple the first link member 22 to the base member 12 about a first pivot axis PA1. The second link pin 28 is configured to pivotally couple the second link member 24 to the base member 12 about a second pivot axis PA2. The third link pin 30 is configured to pivotally couple the first link member 22 to the chain guide 18 about a third pivot axis PA3. The fourth link pin 32 is configured to pivotally couple the second link member 24 to the chain guide 18 about a fourth pivot axis PA4.

[0103] The movable member 14 is movable relative to the base member 12 from the second gear position P2 to the first gear position P1 to move the chain C in the first shifting direction D11. The movable member 14 is movable relative to the base member 12 from the first gear position P1 to the second gear position P2 to move the chain C in the second shifting direction D12. The second shifting direction D12 is the opposite direction of the first shifting direction D11. The first gear position P1 is aligned with the large sprocket FS1 of the front sprocket assembly FS (see, for example, FIG. 2 ). Figure 1 ) corresponding to the position. The second gear position P2 is the position corresponding to the small sprocket FS2 of the front sprocket assembly FS (see Figure 1 ) corresponding to the position. The chain guide 18 is configured to guide the chain C from the small sprocket FS2 to the large sprocket FS1 in the first shifting direction D11. The chain guide 18 is configured to guide the chain C from the large sprocket FS1 to the small sprocket FS2 in the second shifting direction D12.

[0104] like Figure 1 As shown, the gear ratio is defined as the quotient obtained by dividing the total number of teeth of the bicycle front sprocket FS1 or FS2 by the total number of teeth of the bicycle rear sprocket RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8 or RS7. The gear ratio includes a first gear ratio GR1 and a second gear ratio GR2 which is smaller than the first gear ratio GR1. Figure 3 As shown, the first gear position P1 of the movable member 14 corresponds to the first gear ratio GR1. The second gear position P2 of the movable member 14 corresponds to the second gear ratio GR2. In the first shifting operation, the gear ratio is changed from the second gear ratio GR2 to the first gear ratio GR1. In the second shifting operation, the gear ratio is changed from the first gear ratio GR1 to the second gear ratio GR2.

[0105] like Figure 4 As shown, the bicycle derailleur 10 includes a biasing member 33. The biasing member 33 is configured to bias the chain guide 18 from the second gear position P2 (see, for example, FIG. Figure 3 ) and the first gear position P1 (see for example Figure 3) toward the other of the second gear position P2 and the first gear position P1. In the present embodiment, the biasing member 33 is configured to bias the chain guide 18 from the second gear position P2 (see, for example, Figure 3 ) toward the first gear position P1 (see for example Figure 3 However, if needed and / or desired, the biasing member 33 can be configured to bias the chain guide 18 from the first gear position P1 (see, for example, Figure 3 ) toward the second gear position P2 (see for example Figure 3 ) bias.

[0106] like Figure 3 As shown, the bicycle derailleur 10 includes a motor unit 34. The motor unit 34 is configured to move the movable member 14 between a first gear position P1 and a second gear position P2 relative to the base member 12. The motor unit 34 is configured to move the chain guide 18 from the second gear position P2 to the first gear position P1 relative to the base member 12 in a first shifting direction D11. The motor unit 34 is configured to move the chain guide 18 from the first gear position P1 to the second gear position P2 relative to the base member 12 in a second shifting direction D12.

[0107] The motor unit 34 is configured to apply a rotational force to at least one of the chain guide 18 and the linkage structure 20 to move the chain guide 18 relative to the base member 12. In the present embodiment, the motor unit 34 is configured to apply a rotational force to the linkage structure 20 via the first linking pin 26 to move the chain guide 18 relative to the base member 12. The motor unit 34 is configured to apply a rotational force to the chain guide 18 via the first linking pin 26 and the linkage structure 20 to move the chain guide 18 relative to the base member 12. However, if needed and / or desired, the motor unit 34 can be configured to apply a rotational force directly to the chain guide 18 or to both the chain guide 18 and the linkage structure 20.

[0108] like Figure 5 As shown, the motor unit 34 includes a motor 35 and a gear structure 36. The motor 35 is configured to generate a rotational force. Examples of the motor 35 include a direct current (DC) motor and a stepper motor. However, the motor 35 may include other types of motors.

[0109] The gear structure 36 is configured to transmit rotational force. The gear structure 36 includes a plurality of gears 38. The plurality of gears 38 is configured to transmit rotational force to at least one of the chain guide 18 and the link structure 20. In the present embodiment, the plurality of gears 38 is configured to transmit rotational force to the link structure 20. The plurality of gears 38 is configured to transmit rotational force to the link structure 20 via the first linking pin 26. However, the plurality of gears 38 may be configured to transmit rotational force directly to the chain guide 18 or to both the chain guide 18 and the link structure 20.

[0110] The motor unit 34 includes an output shaft 34A. The motor unit 34 is configured to rotate the output shaft 34A. The output shaft 34A is coupled to the first linking pin 26 to rotate together with the first linking pin 26. The plurality of gears 38 includes an output gear G10 fixed to the output shaft 34A.

[0111] like Figure 6 As shown, the motor unit 34 includes a housing 40. The motor 35 and the gear structure 36 are arranged in the housing 40. The housing 40 includes a first housing 42, a second housing 44, and a third housing 45. The first housing 42 includes a storage space 42A. The motor 35 and the gear structure 36 are arranged in the storage space 42A. The second housing 44 is attached to the first housing 42 to cover the end opening of the storage space 42A. The third housing 45 is attached to the first housing 42 to hold the second housing 44 between the first housing 42 and the third housing 45. The first housing 42 includes a first housing support portion 42B. The second housing 44 includes a second housing support portion 44B. The first link pin 26 is pivotally supported by the first housing support portion 42B and the second housing support portion 44B.

[0112] like Figure 7 As shown, the bicycle derailleur 10 includes a controller 50. The controller 50 is configured to control the motor unit 34 in response to a control signal transmitted from the operating device 3, thereby moving the movable member 14 relative to the base member 12. The controller 50 is electrically connected to the motor unit 34. The controller 50 and the motor unit 34 are configured to be powered by a power supply PS provided separately from the bicycle derailleur 10. The controller 50 is configured to communicate with the bicycle derailleur RD and the power supply PS using a PLC via an electrical wiring structure EC. However, the controller 50 may be configured to communicate with the bicycle derailleur RD and the power supply PS wirelessly.

[0113] If the power source PS is directly mounted to the bicycle derailleurs RD and 10, the bicycle derailleurs RD and 10 can be configured to wirelessly communicate with the operating devices 3 and 4. Also, the power source PS can be configured to communicate between at least one of the bicycle derailleurs 10 and RD and a device other than the bicycle derailleurs 10 and RD, such as a power source PS configured to power the transmission system DT (see, for example, FIG. Figure 1 ) are shared between auxiliary drive units that apply auxiliary force.

[0114] The bicycle derailleur 10 includes an electrical port 51 to which an electrical wiring structure EC is detachably connected. The electrical port 51 is electrically connected to the controller 50.

[0115] The operating device 3 is configured to generate a first control signal CS11 in response to a first user input U11. The operating device 3 is configured to generate a second control signal CS12 in response to a second user input U12. The operating device 3 is configured to wirelessly transmit the first control signal CS11 in response to the first user input U11. The operating device 3 is configured to wirelessly transmit the second control signal CS12 in response to the second user input U12. For example, the operating device 3 includes a user interface (e.g., an electric switch) and a communicator. Because the operating device 3 includes structures known in the bicycle field, for the sake of brevity, they will not be described in detail here.

[0116] like Figure 7 As shown, the controller 50 is configured to control the motor unit 34 in response to the first control signal CS11 to move the chain guide 18 from the second gear position P2 to the first gear position P1 relative to the base member 12. The controller 50 is configured to control the motor unit 34 in response to the second control signal CS12 to move the chain guide 18 from the first gear position P1 to the second gear position P2 relative to the base member 12.

[0117] like Figure 7 As shown, in this embodiment, the bicycle derailleur RD is configured to wirelessly communicate with the operating devices 3 and 4. The bicycle derailleur RD is configured to wirelessly receive each of the first control signal CS11 and the second control signal CS12 from the operating device 3. The bicycle derailleur RD is configured to transmit each of the first control signal CS11 and the second control signal CS12 to the bicycle derailleur 10 via the electrical wiring structure EC. However, the bicycle derailleur 10 may be configured to wirelessly receive each of the first control signal CS11 and the second control signal CS12 from the operating device 3.

[0118] The controller 50 includes a processor 50P, a memory 50M, a circuit board 50C, and a system bus 50D. The processor 50P and the memory 50M are electrically mounted on the circuit board 50C. The processor 50P includes a central processing unit (CPU) and a memory controller. The memory 50M is electrically connected to the processor 50P. The memory 50M includes a read-only memory (ROM) and a random access memory (RAM). The memory 50M includes storage areas, each of which has an address in the ROM and the RAM. The processor 50P is configured to control the memory 50M to store data in the storage area of ​​the memory 50M and to read data from the storage area of ​​the memory 50M. The memory 50M (e.g., ROM) stores a program. The program is read into the processor 50P to execute the configuration and / or algorithm of the controller 50.

[0119] The controller 50 includes a motor driver 52 and a communicator 54. The motor driver 52 and communicator 54 are electrically mounted on a circuit board 50C. The motor 35, the motor driver 52, and the communicator 54 are electrically connected to each other via the circuit board 50C and the system bus 50D. The motor driver 52 is configured to control the motor 35 in response to at least one of a first control signal CS11 and a second control signal CS12 transmitted from the operating device 3. The communicator 54 is configured to receive the first control signal CS11 and the second control signal CS12 from the operating device 3. The communicator 54 is configured to transmit information to and / or receive information from other devices using a PLC. The communicator 54 is configured to receive power from a power supply PS.

[0120] The communicator 54 is configured to separate the input signal into a power supply voltage and a control signal. The communicator 54 is configured to regulate the power supply voltage to a level at which the controller 50 can operate appropriately. The communicator 54 is configured to change the power supply voltage to a level at which the motor unit 34 moves the movable member 14. The communicator 54 is configured to change the power supply voltage to different levels at which the motor unit 34 moves the movable member 14. The communicator 54 is also configured to superimpose output signals, such as the first control signal CS11 and the second control signal CS12, on the power supply voltage applied from the power supply PS to the electrical wiring structure EC. In this embodiment, the communicator 54 includes a wired communicator. However, the communicator 54 may include a wireless communicator instead of or in addition to the wired communicator.

[0121] The bicycle derailleur 10 further includes a rotation sensor 56. The rotation sensor 56 is configured to sense the rotational position of one of the plurality of gears 38 in the gear structure 36. The rotation sensor 56 is configured to sense the rotational position of one of the plurality of gears 38. The rotation sensor 56 is electrically mounted on the circuit board 50C. The rotation sensor 56 is electrically connected to the motor driver 52 and the communicator 54 via the circuit board 50C and the system bus 50D.

[0122] like Figure 6 As shown, the plurality of gears 38 include a sensor gear G8. A rotation sensor 56 is configured to sense the rotational position of the sensor gear G8. In this embodiment, the rotation sensor 56 includes an optical encoder. The rotation sensor 56 is configured to emit light toward a sensor target and detect light reflected by the sensor target. However, the rotation sensor 56 may include another sensor instead of or in addition to the optical encoder. The rotation sensor 56 may be omitted from the bicycle derailleur 10. The rotation sensor 56 may be configured to sense the rotational position of another component provided in the motor unit 34.

[0123] like Figure 8 As shown, the additional derailleur RD includes a base member RD1, a movable member RD2, a link structure RD3, a motor unit RD4, and a controller RD5. The base member RD1 is configured to be mounted to a bicycle frame 2A. The movable member RD2 is movably coupled to the base member RD1. The movable member RD2 includes a movable body RD21 and a chain guide RD22. The chain guide RD22 is pivotally coupled to the movable body RD21. The link structure RD3 movably couples the movable member RD2 to the base member RD1. The motor unit RD4 is configured to move the movable member RD2 relative to the base member RD1. The controller RD5 is configured to control the motor unit RD4 to move the movable member RD2 relative to the base member RD1 in response to a control signal transmitted from the operating device 4. The controller RD5 includes a wireless communicator configured to wirelessly communicate with the operating devices 3 and 4. The controller RD5 also includes a position sensor configured to sense the current gear position of the movable member RD2 relative to the base member RD1. The controller RD5 is configured to transmit the current gear position to the controller 50 of the bicycle derailleur 10. The controller RD5 including the wireless communicator is disposed inside the motor unit RD4. However, the controller RD5 may be disposed in other locations outside the motor unit RD4.

[0124] The operating device 4 is configured to generate a first control signal CS21 in response to a first user input U21. The operating device 4 is configured to generate a second control signal CS22 in response to a second user input U22. The operating device 4 is configured to wirelessly transmit the first control signal CS21 in response to the first user input U21. The operating device 4 is configured to wirelessly transmit the second control signal CS22 in response to the second user input U22. For example, the operating device 4 includes a user interface (e.g., an electric switch) and a communicator. Because the operating device 4 includes structures known in the bicycle field, for the sake of brevity, they will not be described in detail here.

[0125] like Figure 9As shown, the motor unit RD4 is configured to move the movable member RD2 relative to the base member RD1 between two adjacent gear positions in the plurality of gear positions P31 to P37 in each of a first additional shifting direction D21 and a second additional shifting direction D22. The second additional shifting direction D22 is the opposite direction of the first additional shifting direction D21. The motor unit RD4 is configured to maintain the movable member RD2 in each of the plurality of gear positions P31 to P37 relative to the base member RD1. The plurality of gear positions P31 to P37 correspond to the plurality of bicycle rear sprockets RS1 to RS7 (see, for example, FIG. Figure 9 ).

[0126] like Figure 10 As shown, the controller 50 is configured to control the motor unit 34 to cause the output shaft 34A of the motor unit 34 (see, for example, FIG. 1 ) to be driven at a first maximum voltage MV1 during a first shifting operation of the chain in a first shifting direction D11. Figure 5 The controller 50 is configured to control the motor unit 34 to rotate the output shaft 34A of the motor unit 34 (see, for example, FIG. 2 ) at the second maximum voltage MV2 during the second shifting operation of the chain in the second shifting direction D12. Figure 5 ) rotates. The first maximum voltage MV1 is different from the second maximum voltage MV2. In this embodiment, the first maximum voltage MV1 is higher than the second maximum voltage MV2. However, as Figure 11 As shown, the first maximum voltage MV1 may be lower than the second maximum voltage MV2 if needed and / or desired.

[0127] like Figure 10 As shown, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 in the first shift direction D11 at a first movement speed SP1. The controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 in the second shift direction D12 at a second movement speed SP2. The second movement speed SP2 is different from the first movement speed SP1. In this embodiment, the first movement speed SP1 is higher than the second movement speed SP2. However, as Figure 11 As shown, the first moving speed SP1 may be lower than the second moving speed SP2.

[0128] like Figure 10 As shown, the motor unit 34 moves the movable member 14 relative to the base member 12 in the first shifting operation without stopping the movable member 14. The first moving speed SP1 is a moving speed at which the motor unit 34 moves the movable member 14 relative to the base member 12 in the first shifting direction D11 without stopping the movable member 14.

[0129] The motor unit 34 moves the movable member 14 relative to the base member 12 in the second shifting operation without stopping the movable member 14. The second moving speed SP2 is a moving speed at which the motor unit 34 moves the movable member 14 relative to the base member 12 in the second shifting direction D12 without stopping the movable member 14.

[0130] The first movement speed SP1 and the second movement speed SP2 can be calculated based on the total travel time of the movable member 14 and the total travel distance of the movable member 14. For example, the total travel time is the time defined from the moment the movable member 14 begins to move to the moment the movable member 14 finally stops. The total travel distance is the distance defined from the starting position of the movable member 14 to the stopping position of the movable member 14. The first movement speed SP1 and the second movement speed SP2 can be the movement speeds of the movable member 14 when it is unloaded (for example, when the chain C is not being guided).

[0131] The first movement speed SP1 and the second movement speed SP2 may be average output speeds of the motor unit 34. The output speed of the motor unit 34 is the rotation speed of the sensor gear G8 of the motor unit 34. The first movement speed SP1 and the second movement speed SP2 may be calculated based on the rotation time and the rotation angle of the sensor gear G8 of the motor unit 34. For example, the rotation time is defined as the time from the moment the sensor gear G8 of the motor unit 34 starts rotating to the moment the sensor gear G8 of the motor unit 34 finally stops. The rotation angle is the total angle defined from the starting angle of the sensor gear G8 of the motor unit 34 to the stopping angle of the sensor gear G8 of the motor unit 34.

[0132] like Figure 10 As shown, the first direction operation time T1 is defined as the time from when the motor unit 34 starts to move the movable member 14 relative to the base member 12 in the first shift direction D11 from the second gear position P2 toward the first gear position P1 to the time when the motor unit 34 stops moving the movable member 14 in the first gear position P1. The second direction operation time T2 is defined as the time from when the motor unit 34 starts to move the movable member 14 relative to the base member 12 in the second shift direction D12 from the first gear position P1 toward the second gear position P2 to the time when the motor unit 34 stops moving the movable member 14 in the second gear position P2. The first direction operation time T1 is different from the second direction operation time T2. In the present embodiment, the first direction operation time T1 is shorter than the second direction operation time T2. However, as Figure 11 As shown, the first direction operation time T1 may be longer than the second direction operation time T2.

[0133] like Figure 10As shown, the controller 50 is configured to control the power supplied to the motor unit 34 to be the first power amount EP1 when the motor unit 34 moves the movable member 14 relative to the base member 12 in the first shift operation. The controller 50 is configured to control the power supplied to the motor unit 34 to be the second power amount EP2 when the motor unit 34 moves the movable member 14 relative to the base member 12 in the second shift operation. The first power amount EP1 is different from the second power amount EP2. In this embodiment, the first power amount EP1 is greater than the second power amount EP2. However, as Figure 11 As shown, the first power amount EP1 may be smaller than the second power amount EP2.

[0134] like Figure 10 As shown, the controller 50 is configured to control the motor unit 34 to generate a first output power PW1 when the motor unit 34 moves the movable member 14 relative to the base member 12 in a first shift direction D11 at a first moving speed SP1. The controller 50 is configured to control the motor unit 34 to generate a second output power PW2 when the motor unit 34 moves the movable member 14 relative to the base member 12 in a second shift direction D12 at a second moving speed SP2. The second output power PW2 is different from the first output power PW1. In the present embodiment, the first output power PW1 is greater than the second output power PW2. Each of the first output power PW1 and the second output power PW2 includes the output torque of the motor 35 or the motor unit 34. However, as Figure 11 As shown, the first output power PW1 may be smaller than the second output power PW2.

[0135] like Figure 10 and Figure 11 As shown, a method for controlling a bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in a first shifting direction D11 at a first maximum voltage MV1. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the first shifting direction D11 at a first movement speed SP1. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the first shifting direction D11 at a first power EP1. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the first shifting direction D11 at a first output power PW1.

[0136] A method for controlling a bicycle derailleur 10 includes controlling a motor unit 34 to move the movable member 14 relative to the base member 12 in a second shifting direction D12 at a second maximum voltage MV2 different from the first maximum voltage MV1. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the second shifting direction D12 at a second movement speed SP2 different from the first movement speed SP1. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the second shifting direction D12 at a second electric power EP2. The method for controlling the bicycle derailleur 10 includes controlling the motor unit 34 to move the movable member 14 relative to the base member 12 in the second shifting direction D12 at a second output power PW2.

[0137] like Figure 12 As shown, to reduce interference between the movable member 14 and the chain C, the controller 50 is configured to control the motor unit 34 to move the movable member 14 based on the gear position information INF1 of the additional derailleur RD, thereby adjusting the position of the movable member 14. In this embodiment, the gear position information INF1 of the additional derailleur RD includes the current gear position of the additional derailleur RD among a plurality of gear positions P31 to P37. The additional derailleur RD is configured to transmit the gear position information INF1 to the bicycle derailleur 10 during a shifting operation of the additional derailleur RD.

[0138] The first gear position P1 includes a first initial gear position P11 and a first adjustment gear position P12. The first initial gear position P11 and the first adjustment gear position P12 are different from each other. The first adjustment gear position P12 is located between the first initial gear position P11 and the second gear position P2. The controller 50 is configured to control the motor unit 34 to maintain the movable member 14 in each of the first initial gear position P11 and the first adjustment gear position P12.

[0139] The controller 50 is configured to control the motor unit 34 to move the movable member 14 from the first initial gear position P11 to the first adjustment gear position P12 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed from gear position P36 to gear position P37. The controller 50 is configured to control the motor unit 34 to move the movable member 14 from the first adjustment gear position P12 to the first initial gear position P11 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed from gear position P37 to gear position P36. The controller 50 is configured to control the motor unit 34 to maintain the movable member 14 in the first initial gear position P11 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed between gear positions P31 to P36.

[0140] The second gear position P2 includes a second initial gear position P21 and a second adjustment gear position P22. The second initial gear position P21 and the second adjustment gear position P22 are different from each other. The second adjustment gear position P22 is located between the second initial gear position P21 and the first gear position P1. The controller 50 is configured to control the motor unit 34 to maintain the movable member 14 in each of the second initial gear position P21 and the second adjustment gear position P22.

[0141] The controller 50 is configured to control the motor unit 34 to move the movable member 14 from the second initial gear position P21 to the second adjustment gear position P22 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed from gear position P32 to gear position P31. The controller 50 is configured to control the motor unit 34 to move the movable member 14 from the second adjustment gear position P22 to the second initial gear position P21 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed from gear position P31 to gear position P32. The controller 50 is configured to control the motor unit 34 to maintain the movable member 14 in the second initial gear position P21 if the controller 50 determines, based on the gear position information INF1, that the gear position of the additional derailleur RD has changed between gear positions P32 to P37.

[0142] like Figure 13 and Figure 14As shown, the controller 50 is configured to control the motor unit 34 to move the movable member 14 at a third maximum voltage MV31 or MV32 based on gear position information INF1 of an additional derailleur RD, which is separate from the bicycle derailleur 10, to adjust the position of the movable member 14. The third maximum voltage MV31 or MV32 is different from the first maximum voltage MV1 and the second maximum voltage MV2. In the present embodiment, the third maximum voltage MV31 or MV32 is lower than the first maximum voltage MV1. The third maximum voltage MV31 or MV32 is lower than the second maximum voltage MV2. The third maximum voltage MV31 is equal to the third maximum voltage MV32. However, the third maximum voltage MV31 or MV32 may be equal to or higher than at least one of the first maximum voltage MV1 and the second maximum voltage MV2. The third maximum voltage MV31 may be different from the third maximum voltage MV32.

[0143] The controller 50 is configured to control the motor unit 34 to move the movable member 14 at a third movement speed SP31 or SP32 based on gear position information INF1 of an additional derailleur RD, which is separate from the bicycle derailleur 10, to adjust the position of the movable member 14. The third movement speed SP31 or SP32 is different from the first movement speed SP1 and the second movement speed SP2. In the present embodiment, the third movement speed SP31 or SP32 is lower than the first movement speed SP1. The third movement speed SP31 or SP32 is lower than the second movement speed SP2. The third movement speed SP31 is equal to the third movement speed SP32. However, the third movement speed SP31 or SP32 may be equal to or higher than at least one of the first movement speed SP1 and the second movement speed SP2. The third movement speed SP31 may be different from the third movement speed SP32.

[0144] The controller 50 is configured to control the motor unit 34 to move the movable member 14 with a third electric power amount EP31 or EP32 based on the gear position information INF1 of the additional derailleur RD, thereby adjusting the position of the movable member 14. The third electric power amount EP31 or EP32 is different from the first electric power amount EP1 and the second electric power amount EP2. In the present embodiment, the third electric power amount EP31 or EP32 is less than the first electric power amount EP1. The third electric power amount EP31 or EP32 is less than the second electric power amount EP2. The third electric power amount EP31 is equal to the third electric power amount EP32. However, the third electric power amount EP31 or EP32 may be equal to or greater than at least one of the first electric power amount EP2 and the second electric power amount EP2. The third electric power amount EP31 may be different from the third electric power amount EP32.

[0145] The controller 50 is configured to control the motor unit 34 to move the movable member 14 with the third output power PW31 or PW32 based on the gear position information INF1 of the additional derailleur RD, so as to adjust the position of the movable member 14. The third output power PW31 or PW32 is different from the first output power PW1 and the second output power PW2. In the present embodiment, the third output power PW31 or PW32 is less than the first output power PW1. The third output power PW31 or PW32 is less than the second output power PW2. The third output power PW31 is equal to the third output power PW32. However, the third output power PW31 or PW32 may be equal to or greater than at least one of the first output power PW1 and the second output power PW2. The third output power PW31 may be different from the third output power PW32.

[0146] like Figure 15 As shown, the controller 50 is configured to change at least one of the first maximum voltage MV1 and the second maximum voltage MV2 based on power information INF2 related to the power supply PS configured to supply power to the bicycle derailleur 10. For example, the power information INF2 includes a remaining level of the power supply PS.

[0147] In this embodiment, the controller 50 is configured to reduce the higher of the first maximum voltage MV1 and the second maximum voltage MV2 if the remaining level of the power supply PS is lower than the remaining level threshold LV. The controller 50 is configured to reduce the lower of the first maximum voltage MV1 and the second maximum voltage MV2 if the remaining level of the power supply PS is lower than the remaining level threshold LV. The controller 50 is configured to reduce the first maximum voltage MV1 if the remaining level of the power supply PS is lower than the remaining level threshold LV. The controller 50 is configured to reduce the second maximum voltage MV2 if the remaining level of the power supply PS is lower than the remaining level threshold LV.

[0148] For example, the controller 50 is configured to change at least one of the first maximum voltage MV1 and the second maximum voltage MV2 according to the remaining level of the power supply PS so that the ratio RV of the higher one of the first maximum voltage MV1 and the second maximum voltage MV2 to the lower one of the first maximum voltage MV1 and the second maximum voltage MV2 changes.

[0149] In this embodiment, the controller 50 is configured to change at least one of the first maximum voltage MV1 and the second maximum voltage MV2 based on the remaining level of the power source PS to change the ratio RV of the first maximum voltage MV1 to the second maximum voltage MV2. The controller 50 is configured to change the first maximum voltage MV1 and the second maximum voltage MV2 based on the remaining level of the power source PS to change the ratio RV of the first maximum voltage MV1 to the second maximum voltage MV2. If the remaining level of the power source PS is below the remaining level threshold LV, the controller 50 is configured to reduce the first maximum voltage MV1 and the second maximum voltage MV2 to change the ratio RV of the first maximum voltage MV1 to the second maximum voltage MV2 from the initial ratio RV1 to the predetermined ratio RV2. If the remaining level of the power source PS is equal to or higher than the remaining level threshold LV (for example, when charging the power source PS), the controller 50 is configured to increase the first maximum voltage MV1 and the second maximum voltage MV2 to change the ratio RV of the first maximum voltage MV1 to the second maximum voltage MV2 from the predetermined ratio RV2 to the initial ratio RV1. However, the controller 50 may be configured to change only one of the first maximum voltage MV1 and the second maximum voltage MV2 according to the remaining level of the power source PS so that the ratio of the second maximum voltage MV2 to the first maximum voltage MV1 varies.

[0150] As with the first maximum voltage MV1 and the second maximum voltage MV2, the controller 50 can be configured to change at least one of the first moving speed SP1 and the second moving speed SP2 according to the remaining level of the power source PS so as to change the ratio RV of the higher of the first moving speed SP1 and the second moving speed SP2 to the lower of the first moving speed SP1 and the second moving speed SP2. The controller 50 can be configured to change at least one of the first electric power amount EP1 and the second electric power amount EP2 according to the remaining level of the power source PS so as to change the ratio RV of the higher of the first electric power amount EP1 and the second electric power amount EP2 to the lower of the first electric power amount EP1 and the second electric power amount EP2. The controller 50 can be configured to change at least one of the first output power PW1 and the second output power PW2 according to the remaining level of the power source PS so as to change the ratio RV of the higher of the first output power PW1 and the second output power PW2 to the lower of the first output power PW1 and the second output power PW2.

[0151] like Figure 10 and Figure 11As shown, in the normal mode, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 based on gear region information related to the gear corresponding region RG1 defined between the first gear position P1 and the second gear position P2. In the normal mode, the controller 50 is configured to control the motor unit 34 to move the movable member 14 from the second gear position P2 to the first gear position P1 in response to a first control signal CS11 if the movable member 14 is in the second gear position P2. The controller 50 is configured to control the motor unit 34 to maintain the movable member 14 in the second gear position P2 in response to a second control signal CS12 if the movable member 14 is in the second gear position P2. The controller 50 is configured to control the motor unit 34 to move the movable member 14 from the first gear position P1 to the second gear position P2 in response to a second control signal CS12 if the movable member 14 is in the first gear position P1. The controller 50 is configured to, if the movable member 14 is in the first gear position P1 , control the motor unit 34 to maintain the movable member 14 in the first gear position P1 in response to the first control signal CS11 .

[0152] like Figure 16 As shown, the controller 50 has an overtravel mode to facilitate the first and second shift operations. For example, the operating device 3 or 4 (see Figure 7 ) includes a mode selection interface, through which a user can select a mode of the controller 50 between a normal mode and an overtravel mode. In the overtravel mode, the controller 50 is configured to control the motor unit 34 to adjust the position of the movable member 14 based on overtravel information related to the overtravel region RG21 or RG22. The overtravel region RG21 or RG22 includes an area at least partially outside the gear corresponding region RG1. The overtravel region RG21 includes a first overtravel position P41. The overtravel region RG22 includes a second overtravel position P42. The first overtravel position P41 and the second overtravel position P42 are set outside the gear corresponding region RG1. The first gear position P1 and the second gear position P2 are set between the first overtravel position P41 and the second overtravel position P42.

[0153] In overtravel mode, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 in the first shift direction D11 by a first adjustment distance DS11 if the gear region information satisfies a first adjustment condition. In this embodiment, the first adjustment condition includes the condition that the movable member 14 reaches the first gear position P1. Therefore, if the movable member 14 reaches the first gear position P1 during the first shift operation, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 by the first adjustment distance DS11 from the first gear position P1 to the first overtravel position P41 in the first shift direction D11. In other words, in overtravel mode, the controller 50 is configured to control the motor unit 34 to continuously move the movable member 14 from the second gear position P2 to the first overtravel position P41 in the first shift direction D11. The first adjustment distance DS11 is defined between the first gear position P1 and the first overtravel position P41.

[0154] The controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 a first return distance DS12 in the second shift direction D12 after moving the movable member 14 a first adjustment distance DS11 in the first shift direction D11. The first return distance DS12 is based on the overtravel information. The first return distance DS12 is defined between the first gear position P1 and the first overtravel position P41.

[0155] In the present embodiment, if the gear region information satisfies the first adjustment condition, the controller 50 is configured to control the motor unit 34 to move the movable member 14 by a first adjustment distance DS11 relative to the base member 12 at the first maximum voltage MV1. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by a first return distance DS12 relative to the base member 12 at the second maximum voltage MV2 after moving the movable member 14 by the first adjustment distance DS11 at the first maximum voltage MV1.

[0156] The controller 50 is configured to, if the gear region information satisfies the first adjustment condition, control the motor unit 34 to move the movable member 14 at the first movement speed SP1 by a first adjustment distance DS11 relative to the base member 12. The controller 50 is configured to control the motor unit 34 to move the movable member 14 at the second movement speed SP2 by a first return distance DS12 relative to the base member 12 after moving the movable member 14 at the first movement speed SP1 by the first adjustment distance DS11.

[0157] The controller 50 is configured to, if the gear region information satisfies the first adjustment condition, control the motor unit 34 to move the movable member 14 by a first adjustment distance DS11 relative to the base member 12 with a first power amount EP1. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by a first return distance DS12 relative to the base member 12 with a second power amount EP2 after moving the movable member 14 by the first adjustment distance DS11 with the first power amount EP1.

[0158] The controller 50 is configured to, if the gear region information satisfies the first adjustment condition, control the motor unit 34 to move the movable member 14 by a first adjustment distance DS11 relative to the base member 12 with the first output power PW1. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by a first return distance DS12 relative to the base member 12 with the second output power PW2 after moving the movable member 14 by the first adjustment distance DS11 with the first output power PW1.

[0159] In the present embodiment, the controller 50 is configured to control the motor unit 34 to move the movable member 14 by the first adjustment distance DS11 relative to the base member 12 under the same conditions as those of the first shifting operation in the normal mode (e.g., the first maximum voltage MV1, the first moving speed SP1, the first electric power EP1, and the first output power PW1). However, the controller 50 may be configured to control the motor unit 34 to move the movable member 14 by the first adjustment distance DS11 relative to the base member 12 under conditions different from those of the first shifting operation in the normal mode.

[0160] The controller 50 is configured to control the motor unit 34 to move the movable member 14 by the first return distance DS12 relative to the base member 12 under the same conditions as those of the second shifting operation in the normal mode (e.g., the second maximum voltage MV2, the second moving speed SP2, the second electric power amount EP2, and the second output power PW2). However, the controller 50 may be configured to control the motor unit 34 to move the movable member 14 by the first return distance DS12 relative to the base member 12 under conditions different from those of the second shifting operation in the normal mode.

[0161] like Figure 16As shown, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 in the second shift direction D12 by a second adjustment distance DS21 if the gear region information satisfies a second adjustment condition. In this embodiment, the second adjustment condition includes the condition that the movable member 14 reaches the second gear position P2. Therefore, if the movable member 14 reaches the second gear position P2 during the second shift operation, the controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 by the second adjustment distance DS21 in the second shift direction D12, from the second gear position P2 to the second overtravel position P42. In other words, in the overtravel mode, the controller 50 is configured to control the motor unit 34 to continuously move the movable member 14 from the first gear position P1 to the second overtravel position P42 in the second shift direction D12. The second adjustment distance DS21 is defined between the second gear position P2 and the second overtravel position P42.

[0162] The controller 50 is configured to control the motor unit 34 to move the movable member 14 relative to the base member 12 a second return distance DS22 in the first shift direction D11 after moving the movable member 14 a second adjustment distance DS21 in the second shift direction D12. The second return distance DS22 is based on the overtravel information. The second return distance DS22 is defined between the second gear position P2 and the second overtravel position P42.

[0163] In the present embodiment, the controller 50 is configured to, if the gear region information satisfies the second adjustment condition, control the motor unit 34 to move the movable member 14 by a second adjustment distance DS21 relative to the base member 12 at the second maximum voltage MV2. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by a second return distance DS22 relative to the base member 12 at the first maximum voltage MV1 after moving the movable member 14 by the second adjustment distance DS21 at the second maximum voltage MV2.

[0164] The controller 50 is configured to, if the gear region information satisfies the second adjustment condition, control the motor unit 34 to move the movable member 14 at the second movement speed SP2 by a second adjustment distance DS21 relative to the base member 12. The controller 50 is configured to control the motor unit 34 to move the movable member 14 at the first movement speed SP1 by a second return distance DS22 relative to the base member 12 after moving the movable member 14 at the second movement speed SP2 by the second adjustment distance DS21.

[0165] The controller 50 is configured to, if the gear region information satisfies the second adjustment condition, control the motor unit 34 to move the movable member 14 by a second adjustment distance DS21 relative to the base member 12 with the second electric power amount EP2. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by a second return distance DS22 relative to the base member 12 with the first electric power amount EP1 after moving the movable member 14 by the second adjustment distance DS21 with the second electric power amount EP2.

[0166] The controller 50 is configured to, if the gear region information satisfies the second adjustment condition, control the motor unit 34 to move the movable member 14 by the second adjustment distance DS21 relative to the base member 12 with the second output power PW2. The controller 50 is configured to control the motor unit 34 to move the movable member 14 by the second return distance DS22 relative to the base member 12 with the first output power PW1 after moving the movable member 14 by the second adjustment distance DS21 with the second output power PW2.

[0167] In the present embodiment, the controller 50 is configured to control the motor unit 34 to move the movable member 14 by the second adjustment distance DS21 relative to the base member 12 under the same conditions as those of the second shifting operation in the normal mode (e.g., the second maximum voltage MV2, the second movement speed SP2, the second electric power EP2, and the second output power PW2). However, the controller 50 may be configured to control the motor unit 34 to move the movable member 14 by the second adjustment distance DS21 relative to the base member 12 under conditions different from those of the second shifting operation in the normal mode.

[0168] The controller 50 is configured to control the motor unit 34 to move the movable member 14 by the second return distance DS22 relative to the base member 12 under the same conditions as those of the first shifting operation in the normal mode (e.g., the first maximum voltage MV1, the first moving speed SP1, the first electric power EP1, and the first output power PW1). However, the controller 50 may be configured to control the motor unit 34 to move the movable member 14 by the second return distance DS22 relative to the base member 12 under conditions different from those of the first shifting operation in the normal mode.

[0169] The structure of bicycle derailleur 10 can be applicable to bicycle derailleur RD, gear box or other derailleurs. Figure 3 As shown, there is the same relationship between the gear ratio GR1 or GR2 and the moving direction of the movable member 14.

[0170] In this application, the term "include" and its derivatives as used herein are intended to be open terms, which specify the presence of stated features, elements, components, groups, integers and / or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and / or steps. This concept also applies to words with similar meanings, for example, the terms "have", "include" and their derivatives.

[0171] The terms “member,” “section,” “portion,” “section,” “element,” “body,” and “structure” when used in the singular can have the dual meaning of a single part or a plurality of parts.

[0172] Ordinal numbers such as "first" and "second" described in this application are merely for identification and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first element" itself does not mean the existence of a "second element", and the term "second element" itself does not mean the existence of a "first element".

[0173] The term “a pair” as used herein may encompass a configuration in which a pair of elements have shapes or structures that are different from each other, in addition to a configuration in which a pair of elements have the same shape or structure as each other.

[0174] The terms "a" or "an", "one or more" and "at least one" are used interchangeably herein.

[0175] The phrase “at least one of” as used in this disclosure means “one or more” of the desired options. For example, if the number of its options is two, the phrase “at least one of” as used in this disclosure means “only a single option” or “both of the two options”. For other examples, if the number of its options is equal to or greater than three, the phrase “at least one of” as used in this disclosure means “only a single option” or “any combination of equal to or greater than two options”. For example, the phrase “at least one of A and B” encompasses (1) A alone, (2) B alone, and (3) both A and B. The phrase “at least one of A, B, and C” encompasses (1) A alone, (2) B alone, (3) C alone, (4) both A and B, (5) both B and C, (6) both A and C, and (7) all of A, B, and C. In other words, the phrase “at least one of A and B” in this disclosure does not mean “at least one of A and at least one of B”.

[0176] Finally, terms of degree as used herein, such as "substantially," "about," and "approximately" represent a reasonable amount of deviation of the modified term such that the end result is not significantly changed. All numerical values ​​described in this application can be interpreted as including terms such as "substantially," "about," and "approximately."

[0177] Obviously, numerous modifications and variations of the present invention are possible in light of the above teachings and it is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

Claims

1. A bicycle derailleur, comprising: base member; a movable member configured to be movably coupled to the base member, the movable member being movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction, the movable member being movable relative to the base member from the first gear position to the second gear position to move the chain in a second shifting direction, the second shifting direction being an opposite direction to the first shifting direction; a motor unit configured to move the movable member relative to the base member between the first gear position and the second gear position; as well as a controller configured to control the motor unit to move the movable member in the first shifting direction relative to the base member at a first moving speed, and to control the motor unit to move the movable member in the second shifting direction relative to the base member at a second moving speed different from the first moving speed.

2. The bicycle derailleur according to claim 1, wherein The gear ratio is defined as the quotient obtained by dividing the total number of teeth on the front sprocket of the bicycle by the total number of teeth on the rear sprocket of the bicycle. The gear ratios include a first gear ratio and a second gear ratio that is smaller than the first gear ratio, In a first shifting operation of the chain in the first shifting direction, the gear ratio is changed from the second gear ratio to the first gear ratio, In a second shifting operation of the chain in the second shifting direction, the gear ratio is changed from the first gear ratio to the second gear ratio, and The first moving speed is higher than the second moving speed.

3. The bicycle derailleur according to claim 1 , wherein The gear ratio is defined as the quotient obtained by dividing the total number of teeth on the front sprocket of the bicycle by the total number of teeth on the rear sprocket of the bicycle. The gear ratios include a first gear ratio and a second gear ratio that is smaller than the first gear ratio, In a first shifting operation of the chain in the first shifting direction, the gear ratio is changed from the second gear ratio to the first gear ratio, In a second shifting operation of the chain in the second shifting direction, the gear ratio is changed from the first gear ratio to the second gear ratio, and The first moving speed is lower than the second moving speed.

4. The bicycle derailleur according to claim 1 , wherein The first movement speed is a movement speed at which the motor unit moves the movable member in the first shift direction relative to the base member without stopping the movable member, and The second movement speed is a movement speed at which the motor unit moves the movable member in the second shift direction relative to the base member without stopping the movable member.

5. The bicycle derailleur according to claim 1 , wherein The controller is configured to control the motor unit to generate a first output power in a state where the motor unit moves the movable member relative to the base member in the first shift direction at the first movement speed. The controller is configured to control the motor unit to generate a second output power in a state where the motor unit moves the movable member relative to the base member in the second shift direction at the second movement speed, and The second output power is different from the first output power.

6. The bicycle derailleur according to claim 1, wherein The controller is configured to control the power supplied to the motor unit to be a first amount of power in a state where the motor unit moves the movable member relative to the base member in a first shifting operation of the chain in the first shifting direction, The controller is configured to control the power supplied to the motor unit to be a second amount of power in a state where the motor unit moves the movable member relative to the base member in a second shifting operation of the chain in the second shifting direction, and The first amount of power is different from the second amount of power.

7. The bicycle derailleur according to claim 6, wherein The first amount of electric power is greater than the second amount of electric power.

8. The bicycle derailleur according to claim 6, wherein The first amount of electric power is less than the second amount of electric power.

9. The bicycle derailleur according to claim 1, wherein the controller being configured to control the motor unit to move the movable member relative to the base member based on gear region information regarding a gear corresponding region defined between the first gear position and the second gear position, The controller is configured to control the motor unit to adjust the position of the movable member based on overtravel information related to the overtravel area, and The overtravel region includes a region at least partially outside the gear corresponding region.

10. The bicycle derailleur according to claim 1, wherein The controller is configured to control the motor unit to move the movable member at a third movement speed based on gear position information of an additional derailleur that is separate from the bicycle derailleur so as to adjust a position of the movable member, and The third moving speed is lower than the first moving speed.

11. The bicycle derailleur according to claim 9, wherein The controller is configured to control the motor unit to move the movable member relative to the base member by a first adjustment distance at the first movement speed if the gear region information satisfies a first adjustment condition, The controller is configured to control the motor unit to move the movable member by a first return distance relative to the base member at a second movement speed after moving the movable member by the first adjustment distance at the first movement speed, and The first return distance is based on the overtravel information.

12. The bicycle derailleur according to claim 11, wherein The first moving speed is higher than the second moving speed.

13. The bicycle derailleur according to claim 11, wherein The first moving speed is lower than the second moving speed.

14. The bicycle derailleur according to claim 9, wherein The controller is configured to control the motor unit to move the movable member relative to the base member by a second adjustment distance at the second movement speed if the gear region information satisfies a second adjustment condition, The controller is configured to control the motor unit to move the movable member by a second return distance relative to the base member at the first movement speed after moving the movable member by the second adjustment distance at the second movement speed, and The second return distance is based on the overtravel information.

15. The bicycle derailleur according to claim 14, wherein The first moving speed is higher than the second moving speed.

16. The bicycle derailleur according to claim 14, wherein The first moving speed is lower than the second moving speed.

17. The bicycle derailleur according to claim 1, wherein a first direction operation time defined as from the time when the motor unit starts moving the movable member relative to the base member in the first shift direction from the second gear position toward the first gear position to the time when the motor unit stops moving the movable member in the first gear position; a second direction operation time defined as from the time when the motor unit starts moving the movable member relative to the base member in the second shift direction from the first gear position toward the second gear position to the time when the motor unit stops moving the movable member in the second gear position, and The first direction operation time is different from the second direction operation time.

18. The bicycle derailleur according to any one of claims 1 to 17, wherein The bicycle derailleur is configured to receive power from a power source configured to supply power to an auxiliary drive unit.

19. The bicycle derailleur according to any one of claims 1 to 17, wherein The bicycle derailleur is configured to wirelessly communicate with an additional derailleur.

20. The bicycle derailleur according to any one of claims 1 to 17, wherein The bicycle derailleur is a bicycle rear derailleur.

21. A method for controlling a bicycle derailleur, comprising: controlling the motor unit to move the movable member relative to the base member in a first shift direction at a first movement speed; as well as The motor unit is controlled to move the movable member relative to the base member at a second moving speed different from the first moving speed, the second shifting direction being an opposite direction to the first shifting direction.

22. A bicycle derailleur, comprising: base member; a movable member configured to be movably coupled to the base member, the movable member being movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction, the movable member being movable relative to the base member from the first gear position to the second gear position to move the chain in a second shifting direction, the second shifting direction being an opposite direction to the first shifting direction; a motor unit configured to move the movable member relative to the base member between the first gear position and the second gear position; as well as a controller configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in the first shifting direction, and to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in the second shifting direction, the first maximum voltage being different from the second maximum voltage; The bicycle derailleur is configured to receive power from a power source configured to supply power to an auxiliary drive unit.

23. The bicycle derailleur according to claim 22, wherein The gear ratio is defined as the quotient obtained by dividing the total number of teeth on the front sprocket of the bicycle by the total number of teeth on the rear sprocket of the bicycle. The gear ratios include a first gear ratio and a second gear ratio that is smaller than the first gear ratio, The gear ratio is changed from the second gear ratio to the first gear ratio in the first shift operation, The gear ratio is changed from the first gear ratio to the second gear ratio in the second shifting operation, and The first maximum voltage is higher than the second maximum voltage.

24. The bicycle derailleur according to claim 22, wherein The controller is configured to control the power supply to the motor unit to be a first amount of power in a state where the motor unit moves the movable member relative to the base member in the first shift operation, The controller is configured to control the power supplied to the motor unit to be a second amount of power in a state where the motor unit moves the movable member relative to the base member in the second shift operation, and The first amount of electric power is greater than the second amount of electric power.

25. The bicycle derailleur according to claim 22, wherein the controller being configured to modify at least one of the first maximum voltage and the second maximum voltage based on power supply information related to a power supply configured to supply power to the bicycle derailleur, The power supply information includes the remaining level of the power supply, and The controller is configured to reduce a higher one of the first maximum voltage and the second maximum voltage if the remaining level of the power source is lower than a remaining level threshold.

26. A bicycle derailleur, comprising: base member; a movable member configured to be movably coupled to the base member, the movable member being movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction, the movable member being movable relative to the base member from the first gear position to the second gear position to move the chain in a second shifting direction, the second shifting direction being an opposite direction to the first shifting direction; a motor unit configured to move the movable member relative to the base member between the first gear position and the second gear position; as well as a controller configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in the first shifting direction, and to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in the second shifting direction, the first maximum voltage being different from the second maximum voltage; The bicycle derailleur is configured to wirelessly communicate with an additional derailleur.

27. The bicycle derailleur according to claim 26, wherein The gear ratio is defined as the quotient obtained by dividing the total number of teeth on the front sprocket of the bicycle by the total number of teeth on the rear sprocket of the bicycle. The gear ratios include a first gear ratio and a second gear ratio that is smaller than the first gear ratio, The gear ratio is changed from the second gear ratio to the first gear ratio in the first shift operation, The gear ratio is changed from the first gear ratio to the second gear ratio in the second shifting operation, and The first maximum voltage is higher than the second maximum voltage.

28. The bicycle derailleur according to claim 26, wherein The controller is configured to control the power supply to the motor unit to be a first amount of power in a state where the motor unit moves the movable member relative to the base member in the first shift operation, The controller is configured to control the power supplied to the motor unit to be a second amount of power in a state where the motor unit moves the movable member relative to the base member in the second shift operation, and The first amount of electric power is greater than the second amount of electric power.

29. The bicycle derailleur according to claim 26, wherein the controller being configured to modify at least one of the first maximum voltage and the second maximum voltage based on power supply information related to a power supply configured to supply power to the bicycle derailleur, The power supply information includes the remaining level of the power supply, and The controller is configured to reduce a higher one of the first maximum voltage and the second maximum voltage if the remaining level of the power source is lower than a remaining level threshold.

30. A bicycle rear derailleur comprising: base member; a movable member configured to be movably coupled to the base member, the movable member being movable relative to the base member from a second gear position to a first gear position to move the chain in a first shifting direction, the movable member being movable relative to the base member from the first gear position to the second gear position to move the chain in a second shifting direction, the second shifting direction being an opposite direction to the first shifting direction; a motor unit configured to move the movable member relative to the base member between the first gear position and the second gear position; as well as a controller configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in the first shifting direction, and to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in the second shifting direction, the first maximum voltage being different from the second maximum voltage.

31. The bicycle rear derailleur according to claim 30, wherein The gear ratio is defined as the quotient obtained by dividing the total number of teeth on the front sprocket of the bicycle by the total number of teeth on the rear sprocket of the bicycle. The gear ratios include a first gear ratio and a second gear ratio that is smaller than the first gear ratio, The gear ratio is changed from the second gear ratio to the first gear ratio in the first shift operation, The gear ratio is changed from the first gear ratio to the second gear ratio in the second shifting operation, and The first maximum voltage is higher than the second maximum voltage.

32. The bicycle rear derailleur according to claim 30, wherein The controller is configured to control the power supply to the motor unit to be a first amount of power in a state where the motor unit moves the movable member relative to the base member in the first shift operation, The controller is configured to control the power supplied to the motor unit to be a second amount of power in a state where the motor unit moves the movable member relative to the base member in the second shift operation, and The first amount of electric power is greater than the second amount of electric power.

33. The bicycle rear derailleur according to claim 30, wherein the controller being configured to modify at least one of the first maximum voltage and the second maximum voltage based on power supply information related to a power supply configured to supply power to the bicycle derailleur, The power supply information includes the remaining level of the power supply, and The controller is configured to reduce a higher one of the first maximum voltage and the second maximum voltage if the remaining level of the power source is lower than a remaining level threshold.

Images