TW202308898A - Bicycle derailleur system, bicycle derailleur adjustment system, and method of adjusting a bicycle derailleur - Google Patents

Abstract

To provide a bicycle derailleur system includes a memory configured to store information related to at least one derailleur and at least one sprocket assembly, a camera configured to capture an image of a target sprocket assembly and a target derailleur including an actuator, and a controller configured to identify a distance difference between a default distance and an actual distance based on the information and the image captured by the camera and configured to control the actuator based on the distance difference. The default distance is defined by the information stored in the memory, and the actual distance is defined between the target derailleur and the target sprocket assembly.

Description

Bicycle derailleur system, bicycle derailleur adjustment system, and method for adjusting bicycle derailleur

The invention relates to a bicycle transmission system, a bicycle transmission adjustment system and a method for adjusting a bicycle transmission.

The present invention generally relates to a bicycle derailleur system comprising a bicycle rear derailleur and/or a bicycle front derailleur. More specifically, the present invention relates to a bicycle derailleur that adjusts an angular position of a base member and/or an angular position of a chain guide when the bicycle derailleur is shifted into a selected gear.

Cycling is becoming an increasingly popular form of recreation as well as a mode of transportation. Furthermore, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. In particular, bicycle transmissions have changed significantly over the years.

A derailleur-operated bicycle transmission typically includes sprockets that rotate with another rotating member, such as a front crank of the bicycle and/or a rear wheel, and a derailleur for shifting a chain between the sprockets. Conventional derailleur transmissions are manually controlled by a manual actuator, such as a lever or twist grip attached to the handlebars of a bicycle, with the derailleur connected to the actuator by a Bowden cable.

More recently, bicycles have been equipped with electrical components to make riding easier and more enjoyable for the rider. Some bicycles are equipped with electronically controlled shifting systems. Specifically, in such electronically controlled shifting systems, the front and rear derailleurs have motors that move the chain guide laterally to achieve the various gears. In the case of a rear derailleur, the angular position of the base member relative to the frame and the angular position of the chain guide relative to the movable member are adjusted during a shift operation by a pair of springs. Although this configuration generally works fairly well, the amount of adjustment required for each gear can vary so that the angular position of the base member and chain guide will not be optimal for each gear. Additionally, after an initial calibration, the angular position of the base member relative to the frame and the chain guide relative to the movable member will become suboptimal over time due to the effects of riding the bicycle.

Therefore, the transmission needs to be calibrated. Specifically, a transmission requires frequent calibration. For example, rear derailleurs are commonly used when performing a maintenance agreement (such as replacing the rear wheel), when a bicycle is sold during an initial calibration of components (such as brakes, tires, wheels, and rear derailleur), and when the function of the bicycle is impaired (such as at Calibrate when the chain slips while riding or shifting, the chain falls off one of the sprockets in the cassette, brake problems, or rear derailleur problems).

In one of the cases where it is necessary to calibrate the derailleur in these situations, the user of the bicycle has no choice but to go to a bicycle shop to calibrate the derailleur. That is, the user may not have the tools or expertise to properly adjust the derailleur, especially if the user is riding a bicycle. This creates stress for the user and also requires excessive time and expense to maintain proper calibration.

In the related art, a bicycle user may use a computer calibration application and a digital camera to receive calibration instructions for a rear derailleur. Specifically, the user fixes the target to certain components of the bicycle, such as the sprocket assembly, the rear derailleur, and the sprockets of the sprocket assembly. The user then captures one or more images of the target with a digital camera. The one or more images are processed by the calibration application to determine a position of the object and thus the position of the components of the bicycle that fix the target, and can be used to infer the overall state of the components. Based on the determination and inference and compared to one of the target's determined best positions, the calibration application can generate calibration instructions to the user.

The procedures of related technologies need to be improved. Requiring targets increases the number of components a user needs to perform calibration and increases the amount of possible user error in misplacing targets or incorrectly obtaining one or more images. The user must manually align components of the rear derailleur, which is difficult and intimidating for the user, causes stress, and often requires specialized tools that the user may not have.

Patent Document 1: US Published Patent Application No. 2015/0243019 (Hall et al.)

Preferably, derailleur calibration is easily performed by a typical bicycle user and requires no special tools or skills. Preferably, transmission weight is reduced by having fewer components than those of the related art. It is an object of the present invention to provide a bicycle derailleur system, a bicycle derailleur adjustment system and a method of adjusting a bicycle derailleur, which allow easy calibration of a derailleur.

(1) According to a first aspect of the present invention, a bicycle transmission system includes: a memory configured to store information related to at least one transmission and at least one sprocket assembly; a camera configured to to capture an image of a target sprocket assembly and a target derailleur including an actuator; and a controller configured to identify a predetermined distance and based on the information and the image captured by the camera A distance difference between an actual distance and configured to control the actuator based on the distance difference. The preset distance is defined by the information stored in the memory, and the actual distance is defined between the target transmission and the target sprocket assembly. The distance difference is identified by the controller based on preset information and the image captured by the camera. Therefore, the user can easily find the distance difference (required calibration amount).

(2) According to a second aspect of the present invention, at least one sprocket assembly of the first aspect includes a plurality of sprocket assemblies, and the at least one transmission includes a plurality of transmissions. Therefore, distance differences of multiple gears can be identified and multiple sprocket assemblies and transmissions can be easily calibrated.

(3) According to a third aspect of the present invention, the information of the first aspect includes information related to the identification of the plurality of sprocket assemblies and the identification of the plurality of transmissions. Therefore, the present invention can be used in many different sprocket assemblies and transmission combinations to increase user's ease of use and applicability.

(4) According to a fourth aspect of the present invention, at least one sprocket assembly of the first aspect includes a plurality of sprocket assemblies. The at least one transmission includes a plurality of transmissions. The information includes information related to the identification of the plurality of sprocket assemblies and the identification of the plurality of transmissions. Based on the image captured by the camera, the controller compares the information associated with the identification of the plurality of sprocket assemblies and the information associated with the identification of the plurality of transmissions with the target sprocket assembly and the The target transmission is to select one of the plurality of sprocket assemblies and one of the plurality of transmissions. The one of the plurality of sprocket assemblies corresponds to the target sprocket assembly. The one of the plurality of transmissions corresponds to the target transmission. Therefore, the present invention can identify the transmission and the sprocket assemblies based on the image captured by the camera without requiring the user to provide an identification. This reduces the amount of work the user has to perform in calibration.

(5) According to a fifth aspect of the present invention and referring back to the first aspect, the at least one sprocket assembly includes a plurality of sprocket assemblies. The at least one transmission includes a plurality of transmissions. The information includes information related to the identification of the plurality of sprocket assemblies and information related to the identification of the plurality of transmissions. The controller displays a list of the plurality of sprocket assemblies and a list of the plurality of transmissions, so that a user can manually select one of the plurality of sprocket assemblies and one of the plurality of transmissions. The one of the plurality of sprocket assemblies corresponds to the target sprocket assembly. The one of the plurality of transmissions corresponds to the target transmission. Therefore, even if it is difficult for the system to identify the target sprocket assembly and the target derailleur, the user can select a sprocket assembly corresponding to the target sprocket assembly and a derailleur corresponding to the target derailleur from the list.

(6) According to a sixth aspect of the present invention, the information related to the identification of the plurality of transmissions and the information related to the identification of the plurality of sprocket assemblies in the fourth aspect and the fifth aspect are each Contains a model. Therefore, the model number of the derailleurs and the model number of the sprocket assemblies can be used to easily identify the target derailleur and the target sprocket assembly.

(7) According to a seventh aspect of the present invention, the information related to the identification of the plurality of transmissions and the information related to the identification of the plurality of sprocket assemblies in the fourth and fifth aspects include A shape of each of the plurality of transmissions and a shape of each of the plurality of sprocket assemblies. Therefore, the system can use the shapes of the sprocket assemblies and the derailleurs to easily identify the target sprocket assembly and the target derailleur without requiring the user to provide identification.

(8) According to an eighth aspect of the present invention and with reference to the first aspect, the at least one sprocket assembly includes a plurality of sprocket assemblies. The at least one transmission includes a plurality of transmissions. The information includes information related to the identification of the plurality of sprocket assemblies and information related to the identification of the plurality of transmissions. the controller identifies the target sprocket assembly and the target transmission as one of the plurality of sprocket assemblies based on at least one QR code provided to at least one of the target sprocket assembly and the target transmission; and One of the plurality of transmissions. Therefore, the system can use the QR codes of the sprocket assemblies and the derailleurs to easily identify the sprocket assemblies and the derailleurs without requiring the user to provide identification.

(9) According to a ninth aspect of the present invention and with reference to the first aspect, the target sprocket assembly includes a plurality of sprockets. The target transmission includes an idler pulley. The controller controls the actuator to adjust an actual distance defined between a sprocket tooth of one of the plurality of sprockets and a pulley tooth of a guide pulley of the transmission. Thus, the system can easily perform this adjustment of each sprocket with little input from the user. Therefore, the user does not need technical knowledge or special tools to perform the calibration. Additionally, since the system requires no user tools, adjusting bolts and the like can be eliminated from the system to simplify the system and reduce parts count and weight.

(10) According to a tenth aspect of the present invention and with reference to the first aspect, the target sprocket includes a plurality of sprockets. The target transmission includes an idler pulley. The controller controls the actuator to adjust the actual distance defined between sprocket teeth of all sprockets of the plurality of sprockets and a pulley tooth of a lead pulley of the transmission. That is, the controller is configured to adjust the actual distance between each sprocket of the sprocket assembly one by one. More specifically, if the number of sprockets of the sprocket assembly is 11, each appropriate position between each of the 11 sprockets and the guide pulley is adjusted. According to the present invention, the controller is configured to control the actuator to automatically adjust the actual distance corresponding to each sprocket. Thus, the system can easily perform all sprocket adjustments during a single group of operations with little input from the user. Therefore, the user does not need technical knowledge or special tools to perform the calibration. Additionally, since the system requires no user tools, adjusting bolts and the like can be eliminated from the system to simplify the system and reduce parts count and weight.

(11) According to an eleventh aspect of the present invention and with reference to the ninth aspect, the controller controls the actuator so that the pulley teeth of the guide pulley are positioned on the sprocket of one of the plurality of sprockets directly below the tooth. Thus, the system can easily perform adjustments of the sprockets with little input from the user.

(12) According to a twelfth aspect of the present invention, the information described in the first aspect related to the sprocket assemblies includes information related to each adjacent chain in each of the plurality of sprocket assemblies Information about the distance between the wheels. Thus, the distance between adjacent sprockets in each of the plurality of sprocket assemblies can be used by the system to easily adjust the target derailleur.

(13) According to a thirteenth aspect of the present invention, the information described in the first aspect related to the sprocket assembly includes the total number of sprockets related to each sprocket assembly of the plurality of sprocket assemblies relevant information. Therefore, the system can easily identify and execute the adjustment of the sprockets of the target sprocket assembly and the target derailleur with little input from the user.

(14) According to a fourteenth aspect of the present invention and with reference to the first aspect, the derailleur includes: a base member configured to be attached to a bicycle frame; a movable member movable relative to The base member moves; a linkage mechanism operatively connects the base member and the movable member; and a chain guide assembly is rotatably connected to the movable member about a chain guide rotational axis. The chain guide assembly includes: a guide pulley rotatably attached to the chain guide about a guide pulley axis different from the chain guide rotational axis; A guide rotation axis and an idler rotation axis of the idler pulley axis are rotatably attached to the chain guide. Therefore, the derailleur adjustment system can be easily used as a component of a bicycle.

The bicycle derailleur system, bicycle derailleur adjustment system, and method of adjusting a bicycle derailleur described above allow for easy calibration of the derailleur.

Preferably, derailleur calibration is easily accomplished by a typical bicycle user and requires no special tools or skills. Preferably, the weight of the transmission is reduced.

Selected embodiments of the present invention will now be explained with reference to the drawings. Those skilled in the art will appreciate from the present disclosure that the following descriptions of the embodiments of the present invention are for illustration only and not for limiting the invention as defined by the appended claims and their equivalents.

Referring first to FIG. 1 , a bicycle 10 includes a shifter having a first operating device 12 and a second operating device 12 and a drive train. The first and second operating devices 12 are substantially identical, wherein one of the first and second operating devices 12 is configured to operate a front derailleur 14 and the other of the first and second operating devices 12 is configured to A rear derailleur 16 is operated. The front and rear derailleurs are described in further detail below.

The drive train includes a transmission, a sprocket assembly and a chain 18 . The transmission includes a rear derailleur 16 and a front derailleur 14 . The sprocket assembly includes a front sprocket assembly 20 and a rear sprocket assembly 22 . Front sprocket assembly 20 includes at least one front sprocket. The front sprocket assembly 20 includes a plurality of front sprockets. Rear sprocket assembly 22 includes at least one rear sprocket. The rear sprocket assembly 22 includes a plurality of rear sprockets. A sprocket assembly includes a target sprocket assembly, as will be described later. The target sprocket assembly contains a plurality of sprockets. Chain 18 is configured to operatively engage with front sprocket assembly 20 and rear sprocket assembly 22 . The bicycle 10 further includes a power supply, a front wheel, a rear wheel and a bicycle controller 120 . The bicycle controller 120 is disposed to at least one of the rear derailleur 16, the front derailleur 14, and the power source PS. The bicycle controller 120 may include a plurality of control elements. For example, each of the control elements is respectively assigned to the front derailleur 14, the rear derailleur 16, and a battery serving as a power source. Each of the bicycle controllers 120 can communicate with each other via a wireless communication system or a wired communication system. The controller 120 includes a microcomputer. The controller 120 is configured to communicate wirelessly with a portable device via a wireless communication system. The controller 120 is configured to communicate wirelessly with the operating device 12 via a wireless communication system. One example of a portable device is a smartphone. Other examples of portable devices include a personal computer and bicycle computer. Bicycle 10 may be any type of bicycle, except for the exemplary bicycle 10 described below. Accordingly, the components of bicycle 10 will not be discussed herein except to assist in understanding the components of the bicycle derailleur system (rear derailleur 16 in particular).

As described above, one of the operating devices 12 may be disposed at a right side of the handlebar H of the bicycle 10 . The rear derailleur 16 is configured to operate in response to operation of one of the first operating devices 12 . The other of the operating device 12 can be arranged at one left side of the handle H. As shown in FIG. The front derailleur 14 is configured to operate in response to operation of the other one of the operating devices 12 .

As seen in Figure 3, the transmission includes: a base member 100, which is configured to be attached to the bicycle 10; a movable member 24, which can move relative to the base member 100; a linkage mechanism 38, which is operatively connected The base member 100 and the movable member 24; and a chain guide 30 rotatably connected to the movable member 24 about a chain guide rotation axis A6. The chain guide 30 includes: a guide pulley 32 rotatably attached to the chain guide 30 about a guide pulley axis A4 different from the chain guide rotation axis A6; The idler rotation axis A5 of the guide rotation axis A6 and the idler pulley axis A4 is rotatably attached to the chain guide 30 . The transmission includes a target transmission, as will be described later. The target transmission includes an idler pulley 32 . The transmission further includes an electronic actuator 36 configured to move the movable member 24 relative to the base member 100 . The transmission further includes a transmission mode switch 102 . More specifically, at least one of the rear derailleur 16 and the front derailleur 14 includes a derailleur mode switch 102 , and even more specifically, the rear derailleur 16 includes the mode switch 102 . In other words, the mode switch 102 is positioned at the rear derailleur 16 . The mode switch 102 is disposed at at least one of the base member 100 , the movable member 24 and the linkage mechanism 38 . Even more specifically, a mode switch 102 is disposed at the base member 100 . The actuator 36 is configured to be disposed at one of the base member 100 , the movable member 24 and the linkage mechanism 38 . In this embodiment, the actuator 36 is disposed at the base member 100 . Therefore, the mode switch 102 and the actuator 36 are disposed at the same portion.

As seen in Figure 4, the actuator 36 includes: an electric motor unit 104; a reduction mechanism 106, which is operatively connected to the electric motor unit 104; and an output shaft 104b of the actuator 36, which is operatively connected to the reduction gear mechanism 106; controller 120 configured to control actuator 36 in response to operation of operating device 12; and a radio 114 configured to communicate with at least one of other controllers 120 and a portable device or wireless communication. Examples of portable devices are a smart phone, a bicycle computer and a personal computer. The actuator 36 further includes a housing (not shown). The controller 120 is a part of a circuit board 112 disposed in the housing of the motor unit 104 . Radio 114 is part of a wireless communication system. In a case where one mode of the bicycle transmission system is a shift mode, the controller 120 is configured to change a mode from a shift mode to a calibration mode in response to an operation of the mode switch 102 . In other words, if the mode of the bicycle transmission system is in a mode other than the calibration mode, the controller 120 is configured to change the mode to the calibration mode in response to an operational input to the mode switch 102 . The calibration mode is configured to adjust a relative position between the chain guide 30 of the derailleur as a target derailleur and a sprocket of the sprocket assembly as a target sprocket assembly, as will be further described below. In a case where the derailleur is the rear derailleur 16, the calibration mode is used to adjust the relationship between the guide pulley 32 of the chain guide 30 of the rear derailleur 16 as the target derailleur and the sprocket of the sprocket assembly as a target sprocket assembly. A pattern of relative positions between. Otherwise, the calibration mode is a mode for adjusting a relative position between the base member 100 and the movable member 24 of the transmission.

As shown diagrammatically in FIG. 2 , the rear sprocket assembly 22 includes a set of rear sprockets RS1 to RS11 . The rear sprocket assembly 22 is mounted to the rear axle of one of the rear wheels in a known manner. The front sprocket assembly 20 includes a set of front sprockets FS1 to FS2 mounted to the crankshaft in a known manner. Chain 18 is operatively engaged with rear sprocket assembly 22 and front sprocket assembly 20 in a conventional manner. Controller 120 is configured to control actuator 36 in response to operation of the shifter.

As seen in FIG. 3 , a rear derailleur 16 is mounted to a rear portion of the bicycle 10 . The rear derailleur 16 is configured to be electronically controlled. The rear derailleur 16 includes a base member 100 , an inner link 38 a , an outer link 38 b , a movable member 24 and a chain guide 30 . The base member 100 , the inner link 38 a , the outer link 38 b , and the movable member 24 are pivotally coupled together to form the four-point linkage 38 . In other words, the inner link 38 a has a first end that is pivotally coupled to the base member 100 and a second end that is pivotally coupled to the movable member 24 . The outer link 38 b has a third end pivotally coupled to the base member 100 and a fourth end pivotally coupled to the movable member 24 . According to the above, the movable member 24 and the chain guide 30 are movable relative to the base member 100 in both an inward shifting direction and an outward shifting direction. Shifting inward corresponds to moving chain guide 30 laterally inward relative to a central longitudinal plane of bicycle 10 . Shifting outward corresponds to moving the chain guide 30 laterally inward relative to a central longitudinal plane of the bicycle 10 . The chain guide 30 has a chain guard with two pulleys for receiving the chain 18 .

As shown in FIG. 3 , the chain guide 30 of a derailleur, such as the target derailleur described below, includes an inner plate 80 , an outer plate 82 , idler pulley 32 and tension pulley 34 . A set bolt is threaded into one of the inner holes of the pivot to couple the inner plate 80, the outer plate 82 and the guide pulley 32 to the pivot. The idler pulley 32 is rotatably supported by a fixing bolt and rotates around the idler pulley axis A4. A mounting screw couples the inner plate 80, the outer plate 82, and the tension wheel 34 together such that the tension wheel 34 is rotatably supported by the mounting screw.

The chain guide 30 includes an idler pulley 32 rotatably attached to the chain guide 30 about an idler pulley axis A4 different from the chain guide rotation axis. The chain guide 30 also includes an idler pulley 34 attached to the chain guide 30 about an idler pulley axis of rotation A5 different from the chain guide axis of rotation and idler pulley axis A4.

The motor 104a of the motor unit 104 is electrically coupled in a known manner to an electronic shift controller (such as the operating device 12) and to a power source PS (battery power or a generator). Motor 104a is operatively coupled to at least one of inner link 38a and outer link 38b to move movable member 24 and chain guide 30 laterally relative to base member 100 relative to the central longitudinal plane of bicycle 10 . In this embodiment, the inner link 38a has its first end non-rotatably fixed to the pivot pin 46 by a flat side of the pivot pin 46 . The inner link 38a is rotated by the motor 104a via a gear transmission 42 . Thus, the links 38a and 38b form a movement mechanism to transverse the movable member 24 and the chain guide 30 with respect to the central longitudinal plane of the bicycle 10 using the motor unit 104 operatively coupled to at least one of the links 38a and 38b. move.

The gear transmission 42 comprises a series of gears which mesh together such that the angular velocity of the output shaft (pivot pin) 46 is reduced compared to the angular velocity of one output shaft 104b of the motor 104a.

Figure 5 shows a bicycle transmission system. The bicycle derailleur system includes a portable device, a derailleur as a target derailleur, and a sprocket assembly as a target sprocket assembly. The portable device comprises a portable controller 130, a memory 132 with a database (explained in more detail below), a wireless unit 134 for the portable device, a camera 136, a display 137, A first operating part 138 and a second operating part 139 . The transmission includes a memory (not shown), a wireless unit 150 for the transmission including a radio 114, actuator 36, mode switch 102, a transmission controller 120 and one of the Electrical components 152 . The portable controller 130 and the derailleur controller 120 serve as controllers for the bicycle derailleur system.

FIG. 5 shows the portable controller 130 and the transmission controller 120 .

The portable controller 130 is provided to the portable device. The portable device can be, for example, a mobile phone (such as a smartphone), a personal computer, or a tablet computer containing an application. Portable controller 130 includes memory 132 for storing information and has a command function for using the information to execute a transmission tuning program.

Although it is described that the portable controller 130 stores information and has command functions for executing a transmission tuning program using the information. Information is stored in the memory 132 of the portable device, however, information can be accessed from a remote memory (such as in a cloud system) or transmission tuning programs can be stored and executed on a remote memory and accessed via A wireless or wired connection is sent to the portable controller 130 . Furthermore, the information and instructions can be updated passively through a remote connection via a wireless or wired connection or actively periodically by the user.

More specifically, memory 132 is configured to store information related to at least one derailleur and at least one sprocket assembly. The information includes at least one transmission in the transmission database 140 . At least one transmission includes a plurality of transmissions. The information of at least one transmission includes model information of a plurality of transmissions. Memory 132 contains information containing information related to the identification of each of the plurality of transmissions. Information relating to the identification of each of the plurality of transmissions includes, but is not limited to, a model number, the shape of each of the plurality of transmissions and the shape of each of the plurality of sprocket assemblies and/or A unique QR code associated with each transmission of the plurality of transmissions. The model number corresponds to each transmission of the plurality of transmissions. In one example, the shape is used by the transmission tuning program to visually identify image-matched shape characteristics of a target transmission (described later). In addition, the transmission database 140 may contain functional characteristics of each transmission model, such as factory geometry, the shape of each of the plurality of transmissions and the tensioning settings of the transmission and other information known in the art for tuning a transmission.

In addition, memory 132 stores information related to at least one transmission and at least one sprocket assembly. The information includes at least one sprocket assembly in the sprocket assembly database 142 . At least one sprocket assembly includes a plurality of sprocket assemblies. The information of at least one sprocket assembly includes model information of one of the plurality of sprocket assemblies. Memory 132 contains information containing information related to the identification of each sprocket assembly of the plurality of sprocket assemblies. Information relating to the identification of each sprocket assembly of the plurality of sprocket assemblies includes, but is not limited to, a model number, the shape of each transmission of the plurality of transmissions, and the identity of each sprocket assembly of the plurality of sprocket assemblies. A shape and/or a unique QR code associated with each sprocket assembly of the plurality of sprocket assemblies. The model number corresponds to each sprocket assembly of the plurality of sprocket assemblies.

In one example, the shape is used by the derailleur tuning program to visually identify an image-matched shape characteristic of a target sprocket assembly (to be explained later). A model contains a model. Additionally, the information related to the identification of each sprocket assembly of the plurality of sprocket assemblies may include functional characteristics of each sprocket assembly model of the plurality of sprocket assemblies. The information relating to the identification of each sprocket assembly of the plurality of sprocket assemblies includes information relating to the total number of sprockets for each of the sprocket assemblies of the plurality of sprocket assemblies, Information about the distance between adjacent sprockets in the sprocket assembly and/or a shape of each sprocket assembly of the plurality of sprocket assemblies.

In addition, memory 132 contains an optimal configuration database 144 of information for each possible pair of sprocket assemblies and derailleurs in its respective databases 142 and 140 . This information includes, but is not limited to, optimal distance characteristics for each possible pair of sprocket assembly and derailleur databases 142 in the sprocket assembly and derailleur database 140 . The portable controller 130 can be configured to calculate an optimal distance based on the information.

The portable controller 130 also includes an imaging device, such as a video camera 136 . The imaging device can be configured to capture a high quality image with a resolution equal to or greater than 3 megapixels.

The derailleur controller 120 is disposed at a derailleur such as the rear derailleur 16 and/or the front derailleur 14 . However, the transmission controller 120 may be located on the bicycle 10, for example, the transmission controller 120 may be located at the power source. The transmission controller 120 is configured for wired or wireless communication with the portable controller 130 . If the transmission controller 120 is configured to communicate wirelessly with the portable controller 130 , the transmission controller 120 uses a wireless unit 150 .

Referring to FIGS. 3 and 4 , the rear derailleur 16 preferably has a reversible electric motor unit 104 (eg, actuator 36 ) configured to move the movable member 24 laterally relative to the base member 100 . In other words, the movable member 24 moves relative to the base member 100 according to the operation of the actuator 36 .

As previously discussed, the actuator 36 includes a motor 104a. The motor 104a is disposed at a motor unit 104, and the motor unit 104 includes a motor 104a (of the actuator 36), a gear transmission 42, an encoder 110, an output shaft 104b of the motor unit 104, and a circuit board 112, the circuit board 112 contains instructions for operating the motor unit 104 . The gear transmission 42 includes a plurality of gears. The encoder 110 is disposed between at least one of the plurality of gears and the circuit board 112 . If wireless communication between the portable controller 130 and the transmission controller 120 is desired, the wireless unit 150 is disposed on the circuit board 112 .

As explained above, the bicycle derailleur system described above includes: a memory 132 configured to store information related to at least one derailleur and at least one sprocket assembly; a camera 136 configured to capture a target chain an image of the wheel assembly and a target transmission including an actuator 36; and a portable controller 130 configured to identify a preset distance and an actual distance based on the information and images captured by the camera 136 and configured to control the actuator 36 based on the distance difference. The preset distance is defined in the information stored in the memory 132, and the actual distance is defined between the target derailleur and the target sprocket assembly.

first embodiment

The following are the steps of adjusting a derailleur in a bicycle derailleur system according to a first embodiment, also shown in FIG. 6 . Steps are identified using an S followed by a component symbol.

In step S10, the user aligns the bicycle 10 in an upright (standing) position.

In step S12, if the current mode of the transmission is not the calibration mode, the mode of the transmission is changed to the calibration mode in response to the operation of the mode switch 102 .

In step S14, the transmission controller 120 starts communicating with the portable controller 130 via wireless communication.

In step S20, a transmission adjustment program is run by the portable controller 130 due to an operation input to the portable device by the user.

In step S21, the user sets the derailleur to a certain sprocket. That is, the user sets the derailleur to, for example, a bicycle gear, such as a first gear setting, which may or may not be indicated to the user by the derailleur adjustment program via, for example, the screen of the portable controller 130 . In this step, the user can set the transmission by operating the shifter or the mode switch 102 . That is, the mode switch 102 may also function as a shift switch.

In step S22, the user uses the camera 136 of the portable device 90 to capture an image of the transmission. The transmission is referred to as the target transmission. That is, camera 136 is configured to capture an image of one of the target transmissions. The image may contain a QR code unique to the make and model of the target transmission. The image may contain a model unique to the make and model of the target transmission. The derailleur adjustment program may display instructions on, for example, a screen of a portable device regarding the position of the camera 136 needed to capture an image of the target derailleur.

Alternatively, the memory 132 of the portable device may contain information about the make and model of the target transmission, and the user may select the model without using the camera 136 .

In step S30 , the user uses the camera 136 of the portable device to capture an image of the sprocket assembly of the bicycle 10 . The sprocket assembly refers to the target sprocket assembly. That is, camera 136 is configured to capture an image of one of the target sprocket assemblies. In one of the cases where the target derailleur is the rear derailleur 16 , the target sprocket assembly is the rear sprocket of the rear sprocket assembly 22 . In one of the cases where the target derailleur is the front derailleur 14 , the target sprocket is the front sprocket of the front sprocket assembly 20 . The image may contain a QR code unique to the brand and model of the target sprocket assembly. The image may contain the brand and model unique to the target sprocket assembly. The derailleur adjustment program may, for example, display instructions on a screen of the portable controller 130 regarding the position of the camera 136 needed to capture an image of the target sprocket assembly.

Alternatively, the memory 132 of the portable device may contain information about the make and model of the target sprocket assembly, and the user may select the model without using the camera 136 .

In step S40, the identification characteristics of the image of the target transmission (which may or may not include the model and/or QR code in the image of the target transmission) are compared with the identification characteristics of at least one transmission stored in the transmission database 140 for self-storage A matching transmission is selected from at least one transmission in the transmission database 140 . That is, based on an image captured by camera 136 (such as an image of a target transmission), portable controller 130 compares information related to identification of the plurality of transmissions with the target transmission to select one of the plurality of transmissions in transmission database 140 . One of the plurality of transmissions corresponds to the target transmission.

That is, in step S40, the portable controller 130 may identify the target transmission as one of the plurality of transmissions based on, for example, at least one QR code provided to the target transmission. More specifically, the portable controller 130 may identify the target transmission as one of the plurality of transmissions based on, for example, at least one QR code provided to the target transmission.

In step S41, the identification characteristics of the image of the target sprocket assembly (which may or may not include the model number and/or QR code in the image of the target sprocket assembly) are compared with those stored in the sprocket assembly database 142. The identification characteristic of at least one sprocket assembly is used to select a matching sprocket assembly from at least one sprocket assembly stored in the sprocket assembly database 142 . That is, based on the image captured by camera 136 (in this example, the image of the target sprocket assembly), portable controller 130 compares information related to the identification of the plurality of sprocket assemblies with the target sprocket assembly to One of the plurality of sprocket assemblies in the sprocket assembly database 142 is selected. One of the plurality of sprocket assemblies corresponds to the target sprocket assembly.

That is, in step S41 , the portable controller 130 may identify the target sprocket assembly as one of the plurality of sprocket assemblies based on, for example, at least one QR code provided to the target sprocket assembly.

In step S50, a preset distance of the selected matching transmission and the selected matching sprocket assembly is generated using the selected matching transmission and the selected matching sprocket assembly. The preset distance can be generated by a calculation performed by the portable device or as part of the information about the selected matching derailleur and the selected matching sprocket assembly. The resulting preset distance may comprise an optimum distance between the selected mating derailleur and the selected mating sprocket assembly. The optimal distance can be generated by a calculation performed by the portable device or as part of the information about the selected matched transmission and the selected matched sprocket assembly. The optimal distance may include the distance between a sprocket tooth of one of the sprockets of the sprocket assembly and a pulley tooth of the guide pulley 32 of the transmission. In a state where a pulley tooth of the guide pulley 32 of the transmission is positioned directly below a sprocket tooth of one of the sprockets, the optimal distance may be one of the sprockets of the sprocket assembly The shortest distance between the teeth and the pulley teeth of the guide pulley 32.

In step S60, the portable controller 130 calculates the actual distance based on the capture information captured by the camera 136 of the portable device. The actual distance is defined between the target derailleur and the target sprocket. The portable controller 130 of the portable device compares the preset distance with the actual distance. The portable controller 130 derives the actual distance based on the image of the sprocket assembly and the image of the derailleur. For example, the portable controller 130 is configured to calculate the difference between the actual distance and the preset distance. However, the user may be prompted to take another image of the derailleur or sprocket assembly than the one used by the portable controller 130 to derive the actual distance (explained in more detail later).

By deriving and comparing the actual distance with the preset distance, the portable controller 130 calculates an adjusted distance. For example, a difference between the actual distance and the preset distance can be the adjusted distance amount. If the adjusted distance is lower than a predetermined threshold value, the procedure may directly proceed to step END to end the procedure.

In step S70 , the portable controller 130 transmits the adjusted distance to the transmission controller 120 via the wireless communication unit 134 . However, instead of using the wireless communication unit 134 , the distance adjustment amount can also be transmitted via a wire. The derailleur controller 120 is configured to control the actuator 36 of the target derailleur to move the movable member 24 relative to the base member 100 based on the adjusted distance amount communicated from the portable controller 130 .

In step S80, the transmission controller 120 activates the actuator 36 to move the movable member 24 laterally relative to the base member 100 by an adjusted distance amount. In other words, the movable member 24 moves relative to the base member 100 by an adjusted distance amount according to the operation of the actuator 36 . The transmission controller 120 can be configured to control the actuator 36 using an open loop control.

In one example, the portable controller 130 communicates the adjustment to the derailleur controller 120 to allow the controller 120 controlling the actuator 36 to adjust the distance between a sprocket tooth defined on one of the plurality of sprockets and the target derailleur. The actual distance between the teeth of one of the guide pulleys 32 is obtained in step S50.

After step S80, the portable controller 130 confirms whether the difference between the actual distance and the preset distance is smaller than the predetermined distance. If the difference is less than the predetermined distance, the portable controller 130 will proceed to step END. If the difference is greater than the predetermined distance, the portable controller 130 proceeds to step S60.

In step END, the program ends and the transmission adjustment routine ends. Using this procedure, the user can easily adjust the target transmission at any desired time without special tools or technical knowledge. Since no tools are required, there is no need to adjust hardware in the target transmission to reduce the number of parts in the transmission.

second embodiment

The following are the steps of adjusting a target derailleur in a bicycle derailleur system according to a second embodiment, also shown in FIG. 7 . Steps are identified using an S followed by a component symbol.

In step S100, the user aligns the bicycle 10 in an upright (standing) position.

In step S200 , the user runs the transmission adjustment program on the portable controller 130 .

In step S210, the user sets a position of the derailleur corresponding to a certain sprocket (such as a bicycle gear, such as a first gear), which may or may not be passed through the screen of the portable controller 130, for example. The transmission adjustment program is indicated to the user.

In step S300, the portable controller 130 is configured to display an information list on the screen of the portable device. The list of information is associated with the sprocket assembly stored in the memory 132 . The user freely populates a list of at least one sprocket assembly in the sprocket assembly database 142 and manually selects a sprocket assembly corresponding to the target sprocket assembly. The list may or may not contain items such as a sprocket assembly model number The identification information of the sprocket assembly. In addition, the portable controller 130 is configured to display a list of information on the screen of the portable device. The list of information is associated with the transmission stored in memory 132 . The user manually selects a transmission corresponding to the target transmission from a list populated with at least one transmission freely stored in the transmission database 140 , the list may or may not include transmission identification information such as a transmission model. The pair of selected sprockets and selected transmissions are selected matching transmissions and selected matching sprocket assemblies.

Through step S300, the controller 130 displays a list of a plurality of sprocket assemblies and a plurality of transmissions, so that a user can manually select one of the plurality of sprocket assemblies and one of the plurality of transmissions. One of the plurality of sprocket assemblies corresponds to the target sprocket assembly, and one of the plurality of transmissions corresponds to the target transmission.

In step S400, the selected matching transmission and the selected matching sprocket assembly are used to generate a preset distance characteristic of the selected matching transmission and the selected matching sprocket assembly. The generated selected distance characteristic may include an optimum distance between the selected mated derailleur and the selected mated sprocket assembly. The optimal distance may include the distance between a sprocket tooth of one of the sprockets of the selected matching sprocket assembly and a pulley tooth of the idler pulley 32 of the selected matching transmission. The optimal distance may be the shortest distance between a sprocket tooth of one of the sprockets of the sprocket assembly and a pulley tooth of the guide pulley 32 of the transmission (i.e., such that the pulley teeth of the guide pulley 32 are positioned on a plurality of chains). directly below the sprocket teeth of one of the wheels).

In step S500, the user uses the camera 136 of the portable device to capture an image of the target transmission. The transmission is referred to as the target transmission. The derailleur adjustment program may display instructions on, for example, a screen of a portable device regarding the position of the camera 136 needed to capture an image of the target derailleur.

In step S510 , the user uses the camera 136 of the portable device to capture an image of the target sprocket assembly of the bicycle 10 . The sprocket assembly refers to the target sprocket assembly. In one of the cases where the target derailleur is the rear derailleur 16 , the target sprocket assembly is the rear sprocket of the rear sprocket assembly 22 . In one of the cases where the target derailleur is the front derailleur 14 , the target sprocket is the front sprocket of the front sprocket assembly 20 . The calibration program may, for example, display instructions on a screen of the portable device regarding the position of the camera 136 needed to capture an image of the target sprocket assembly.

In step S600, the portable controller 130 calculates and compares the preset distance with the actual distance between the target transmission and the target sprocket assembly. The actual distance can be derived by the portable controller 130 from the image of the sprocket assembly or the image of the derailleur. For example, the portable controller 130 is configured to calculate the difference between the actual distance and the preset distance. However, the user may be prompted to take another image of the derailleur or sprocket assembly than the one used by the portable controller 130 to derive the actual distance (explained in more detail later).

By deriving and comparing the actual distance and the preset distance, the adjustment distance of the transmission is determined. For example, a difference between the actual distance and the preset distance can be the adjusted distance amount. If the adjusted distance is lower than a predetermined threshold value, the procedure may directly proceed to step END to end the procedure.

In step S700 , the portable controller 130 transmits the adjusted distance to the transmission controller 120 via the wireless communication unit 134 . However, instead of using the wireless communication unit 134 , the distance adjustment amount can also be transmitted via a wire.

In step S800, the transmission controller 120 activates the actuator 36 to move the movable member 24 laterally relative to the base member 100 by an adjusted distance amount. In other words, the movable member 24 moves relative to the base member 100 by an adjusted distance amount according to the operation of the actuator 36 .

For example, the portable controller 130 transmits the adjustment to the transmission controller 120 to instruct the controller 120 to control the actuator 36 so that the pulley teeth of the idler pulley 32 are positioned directly below the sprocket teeth of one of the plurality of sprockets .

After step S800, the portable controller 130 confirms whether the difference between the actual distance and the preset distance is smaller than the predetermined distance. If the difference is less than the predetermined distance, the portable controller 130 will proceed to step END. If the difference is greater than the predetermined distance, the portable controller 130 proceeds to step S600.

In step END, the program ends and the transmission adjustment routine ends. Using this procedure, the user can easily adjust the target transmission at any desired time without special tools or technical knowledge. Since no tools are required, there is no need to adjust hardware in the target transmission to reduce the number of parts in the transmission.

third embodiment

Except for the following steps, the third embodiment is the same as the first embodiment, which is also shown in FIG. 8 . That is, the first embodiment is included in the third embodiment except for the mentioned parts.

Similar to the first embodiment, in step S50, the selected matching derailleur and the selected matching sprocket assembly are used to generate the preset distance of the selected matching derailleur and the selected matching sprocket assembly. The generated preset distance may comprise an optimal distance between the selected mating derailleur and the selected mating sprocket assembly. The optimal distance may include the distance between a sprocket tooth of one of the sprockets of the sprocket assembly and a pulley tooth of the guide pulley 32 of the transmission. The optimal distance may be the shortest distance between a sprocket tooth of one of the sprockets of the sprocket assembly and a pulley tooth of the guide pulley 32 of the transmission (i.e., such that the pulley teeth of the guide pulley 32 are positioned on a plurality of chains). directly below the sprocket teeth of one of the wheels).

In the third embodiment, step S55 is added after step S50 of the first embodiment. In step S55 , the portable device prompts the user to use the camera 136 of the portable controller 130 to capture an adjustment image of the target transmission and the target sprocket assembly. The portable controller 130 can display instructions to the user describing how to capture and adjust the image.

In the third embodiment, step S60 from the first embodiment is replaced by step S60A, which follows step S55. In step S60A, the portable controller 130 calculates and compares the preset distance with the actual distance between the target transmission and the target sprocket assembly. The actual distance can be derived by the portable controller 130 from the adjusted image. However, the user may be prompted to take another image than the adjusted image used by the portable controller 130 to derive the actual distance.

By deriving and comparing the actual distance and the preset distance, the adjustment distance of the target transmission is determined. For example, a difference between the actual distance and the preset distance can be the adjusted distance amount. If the adjusted distance is lower than a predetermined threshold value, the procedure may directly proceed to step END to end the procedure.

Fourth embodiment

Except for the following steps, the fourth embodiment is the same as the second embodiment, which is also shown in FIG. 9 . Except for the mentioned parts, the second embodiment is included in the fourth embodiment.

Similar to the second embodiment, in step S400 , the selected matching derailleur and the selected matching sprocket assembly are used to generate the preset distance characteristics of the selected matching derailleur and the selected matching sprocket assembly. The generated selected distance characteristic may include an optimum distance between the selected mated derailleur and the selected mated sprocket assembly. The optimal distance may include the distance between a sprocket tooth of one of the sprockets of the selected matching sprocket assembly and a pulley tooth of the idler pulley 32 of the selected matching transmission. The optimal distance may be the shortest distance between a sprocket tooth of one of the sprockets of the sprocket assembly and a pulley tooth of the guide pulley 32 of the transmission (i.e., such that the pulley teeth of the guide pulley 32 are positioned on a plurality of chains). directly below the sprocket teeth of one of the wheels).

In the fourth embodiment, step S410 is added after step S400 of the second embodiment. In step S410 , the portable device 90 prompts the user to use the camera 136 of the portable controller 130 to capture an adjustment image of the target transmission and the target sprocket assembly. The portable controller 130 can display instructions to the user describing how to capture and adjust the image.

In the fourth embodiment, step S600 from the second embodiment is replaced by step S600A, which follows step S510. In step S600A, the portable controller 130 calculates and compares the preset distance with the actual distance between the target transmission and the target sprocket assembly. The actual distance can be derived by the portable controller 130 from the adjusted image. However, the user may be prompted to take another image than the adjusted image used by the portable controller 130 to derive the actual distance.

By deriving and comparing the actual distance and the preset distance, the adjustment distance of the target transmission is determined. For example, a difference between the actual distance and the preset distance can be the adjusted distance amount. If the adjusted distance is lower than a predetermined threshold value, the procedure may directly proceed to step END to end the procedure.

Revise

first modification

An example of using the first modification in the first embodiment is shown in FIG. 10 . However, in any of the first embodiment to the fourth embodiment, a step S81 may be added after step S80A (or the corresponding step S800A in the second embodiment and the fourth embodiment) (the second embodiment and the fourth embodiment S810) in the fourth embodiment, which replaces step S80.

In step S81 (S810 in the second embodiment and the fourth embodiment), the user adjusts the target derailleur to a different sprocket (ie, gear, such as a second gear) setting, which may or may not be via the portable The mode controller 130 indicates to the user through the transmission adjustment program.

Repeat step S80A (S800A) and step S81 (S810) according to the needs of different sprockets (gears) of the target sprocket assembly of the bicycle 10. For example, the controller 120 controls the actuator 36 to adjust between the sprocket teeth of all the sprockets of the plurality of sprockets and the pulley teeth of the guide pulley 32 of the target transmission by repeating steps S80A (S800A) and S81 (S810). actual distance.

In this way, the target derailleur can be adjusted for each sprocket (gear) of the bicycle 10 to achieve optimal adjustment of the target derailleur for each sprocket (gear).

second modification

An example of using the first modification in the first embodiment is shown in FIG. 11 . However, in any of the first embodiment to the fourth embodiment, a step 82 may be added after step S80 (or the corresponding step S800 in the second embodiment and the fourth embodiment) (the second embodiment and the fourth embodiment S820 in the fourth embodiment).

In step S82 (S820 in the second and fourth embodiments), the user captures another image of the target transmission or the target sprocket assembly, or in the case of the third and fourth embodiments, Another image corresponding to the adjusted image is captured, which may or may not be indicated to the user by a calibration program on the portable controller 130 .

Then, repeat steps S60 to S82 (S600 to S820) as needed until the portable controller 130 determines a comparison between the preset distance and the actual distance between the target transmission and the target sprocket assembly (in S60, S60A, S600 and In S600A) is lower than a predetermined threshold.

In this way, transmission adjustments can be repeated to achieve optimal adjustment of the transmission.

The operating device 12, the portable controller 130 and the transmission controller 120 preferably include a display and a microcomputer processing device. The operating device 12, the portable controller 130 and the transmission controller 120 may also include other conventional components such as an input interface circuit, an output interface circuit and storage devices such as a ROM (read only memory) device and a RAM (random access memory) device. Since electronic controllers are well known in the bicycle field, the operating device 12 , the portable controller 130 and the derailleur controller 120 will not be discussed and/or shown in detail herein.

10: Bicycle 12: Operating device 14: Front derailleur 16: Rear derailleur 18: chain 20: Front sprocket assembly 22: Rear sprocket assembly 24: Movable components 30: Chain guide 32: guide pulley 34: Tensioner 36: Actuator 38: Linkage 38a: Inner connecting rod 38b: Outer link 42: Gear transmission 46: Pivot pin 80: inner panel 82: outer plate 90: Portable device 100: base member 102: Mode switch 104: Motor unit 104a: Motor 104b: output shaft 106:Deceleration mechanism 110: Encoder 112: circuit board 114: radio 120: Transmission controller 130: Portable controller 132: memory 134: wireless communication unit 136: camera 137: display 138: The first operation part 139:Second operation part 140:Transmission database 142:Sprocket assembly database 144: Optimal Settings Database 150: wireless unit 152: Electrical components A4: guide pulley axis A5: Tensioner axis A6: chain guide rotation axis FS1 to FS2: Front sprockets H: handle PS: power supply RS1 to RS11: rear sprockets S10: step S12: step S14: step S20: step S21: step S22: step S30: step S40: step S41: step S50: Steps S55: step S60: Steps S60A: Steps S70: Steps S80: step S80A: Steps S81: step S82: step S100: step S200: Steps S210: step S300: Steps S400: Steps S410: step S500: Steps S510: step S600: Steps S600A: Steps S700: Steps S800: Steps

1 is a side view of a bicycle equipped with a bicycle derailleur system and a bicycle shift control device according to one embodiment; Fig. 2 is a schematic diagram of the bicycle transmission system shown in Fig. 1; Fig. 3 is a perspective view of the bicycle transmission system shown in Fig. 1; 4 is a perspective view of the bicycle transmission system shown in FIG. 1 , with a base member and a motor housing partially omitted; Fig. 5 is a schematic diagram of a portable controller and a transmission controller included in the bicycle of Fig. 1; Fig. 6, Fig. 7, Fig. 8 and Fig. 9 are the program flow charts of the embodiment of the present invention; and 10 and 11 show modifications of the procedures of FIGS. 6 , 7 , 8 and 9 .

14: Front derailleur

16: Rear derailleur

20: Front sprocket assembly

22: Rear sprocket assembly

36: Actuator

52: motor

102: Mode switch

114: radio

120: Transmission controller

130: Portable controller

132: memory

134: wireless communication unit

136: camera

137: Display

138: The first operation part

139:Second operation part

140:Transmission database

150: wireless unit

152: Electrical components

Claims (14)

A bicycle transmission system comprising: a memory configured to store information related to at least one transmission and at least one sprocket assembly; a camera configured to capture images of a subject sprocket assembly and a subject derailleur including an actuator; and a controller configured to identify a distance difference between a preset distance and an actual distance based on the information and the image captured by the camera and configured to control the actuation based on the distance difference device, the default distance is defined in the information stored in the memory, and The actual distance is defined between the target transmission and the target sprocket assembly. Such as the bicycle transmission system of claim 1, wherein the at least one sprocket assembly comprises a plurality of sprocket assemblies, and The at least one transmission includes a plurality of transmissions. Such as the bicycle transmission system of claim 1, wherein The information includes information related to identification of each sprocket assembly of the plurality of sprocket assemblies and information related to identification of each transmission of the plurality of transmissions. Such as the bicycle transmission system of claim 1, wherein the at least one sprocket assembly comprises a plurality of sprocket assemblies, the at least one transmission comprises a plurality of transmissions, the information includes information relating to the identification of each sprocket assembly of the plurality of sprocket assemblies and information relating to the identification of each transmission of the plurality of transmissions, Based on the image captured by the camera, the controller compares the information associated with the identification of the plurality of sprocket assemblies and the information associated with the identification of the plurality of transmissions with the target sprocket assembly and the The target transmission is to select one of the plurality of sprocket assemblies and one of the plurality of transmissions, the one of the plurality of sprocket assemblies corresponds to the target sprocket assembly, and The one of the plurality of transmissions corresponds to the target transmission. Such as the bicycle transmission system of claim 1, wherein the at least one sprocket assembly comprises a plurality of sprocket assemblies, the at least one transmission comprises a plurality of transmissions, the information includes information relating to the identification of each sprocket assembly of the plurality of sprocket assemblies and information relating to the identification of each transmission of the plurality of transmissions, the controller displays a list of the plurality of sprocket assemblies and one of the plurality of transmissions such that a user can manually select one of the plurality of sprocket assemblies and one of the plurality of transmissions, the one of the plurality of sprocket assemblies corresponds to the target sprocket assembly, and The one of the plurality of transmissions corresponds to the target transmission. Such as the bicycle transmission system of claim 4 or 5, wherein The information associated with the identification of each transmission of the plurality of transmissions and the information associated with the identification of each sprocket assembly of the plurality of sprocket assemblies each include a model number. Such as the bicycle transmission system of claim 4 or 5, wherein The information relating to the identification of each of the plurality of transmissions and the information relating to the identification of each of the plurality of sprocket assemblies includes a shape of each of the plurality of transmissions and the One shape of each sprocket assembly of a plurality of sprocket assemblies. Such as the bicycle transmission system of claim 1, wherein the at least one sprocket assembly comprises a plurality of sprocket assemblies, the at least one transmission comprises a plurality of transmissions, the information includes information relating to the identification of each sprocket assembly of the plurality of sprocket assemblies and information relating to the identification of each transmission of the plurality of transmissions, the controller identifies the target sprocket assembly and the target transmission as one of the plurality of sprocket assemblies based on at least one QR code provided to at least one of the target sprocket assembly and the target transmission; and One of the plurality of transmissions. Such as the bicycle transmission system of claim 1, wherein The target sprocket assembly includes a plurality of sprockets, The target transmission includes an idler pulley, and The controller controls the actuator to adjust the actual distance defined between a sprocket tooth of one of the plurality of sprockets and a pulley tooth of the lead pulley of the target transmission. Such as the bicycle transmission system of claim 1, wherein The target sprocket assembly includes a plurality of sprockets, The target transmission includes an idler pulley, and The controller controls the actuator to adjust the actual distance defined between sprocket teeth of all sprockets of the plurality of sprockets and a pulley tooth of the lead pulley of the target transmission. Such as the bicycle transmission system of claim 9, wherein The controller controls the actuator such that the pulley teeth of the idler pulley are positioned directly below the sprocket teeth of one of the plurality of sprockets. Such as the bicycle transmission system of claim 1, wherein The information associated with each sprocket assembly of the plurality of sprocket assemblies includes information associated with a distance between adjacent sprockets in each sprocket assembly of the plurality of sprocket assemblies. Such as the bicycle transmission system of claim 1, wherein The information associated with each sprocket assembly of the plurality of sprocket assemblies includes information associated with a total number of sprockets for each of the sprocket assemblies of the plurality of sprocket assemblies. Such as the bicycle transmission system of claim 1, wherein The transmission contains a base member configured to be attached to a bicycle, a movable member movable relative to the base member, a linkage mechanism operatively connects the base member and the movable member, and a chain guide rotatably connected to the movable member about a chain guide rotation axis, the chain guide comprising an idler pulley rotatably attached to the chain guide about an idler pulley axis different from the chain guide's axis of rotation, and A tension pulley is rotatably attached to the chain guide about a tension pulley rotation axis different from the chain guide rotation axis and the idler pulley axis.

Images