bicycle shift control unit

Abstract

Bicycle shift control unit (312, 412, 512) comprising: a detection target (330, 430), rotatable together with a gear ring arrangement (5); a rotary position detection unit (332, 432) configured to detect a rotary position of the gear ring assembly (5) and including an image sensor (436) configured to capture a target image of the detection target (330, 430); and a derailleur controller (42, 442) configured to calculate a rotational position of the sprocket assembly (5) based on the target image captured by the image sensor (436) and configured to control a derailleur (9) based on the rotational position calculated by the derailleur controller (42, 442); wherein The derailleur controller (42, 442) is configured to store an actuation time (TU1-10, TD2-11) during which the derailleur (9) shifts a bicycle chain (C) between a sprocket and an additional sprocket of the sprocket assembly (5), wherein the additional sprocket is adjacent to the sprocket without a further sprocket, in a memory (46) of the derailleur controller (42, 442) and to calculate a time or timing at which the derailleur (9) begins to shift the bicycle chain (C) based on the time stored in the derailleur controller (42, 442). Actuation time (TU1-10, TD2-11) and a current rotation position detected by the rotation position detection unit (332, 432) when an actuation signal to actuate the derailleur (9) is input to the derailleur controller (42, 442) by an actuating device (7).

Description

BACKGROUND OF THE INVENTION

[0001] This application claims priority over U.S. patent application no. 14 / 508,997, which was filed on October 7, 2014. The entire disclosure content of U.S. patent application no. 14 / 508,997 is hereby incorporated by reference. AREA OF INVENTION

[0002] The present invention relates to a bicycle shift control device. BACKGROUND DESCRIPTION

[0003] Cycling is becoming an increasingly popular form of leisure activity and a means of transport. Moreover, cycling has become a very popular competitive sport for both amateurs and professionals. Regardless of whether the bicycle is used for leisure, transport, or competition, the bicycle industry is constantly improving the various components of the bicycle. One bicycle component that has been extensively redesigned is the derailleur, which is now designed for electrical actuation. Such derailleurs are designed to change gear positions in response to shift commands from electrical devices.

[0004] US 2004 / 0 092 347 A1 describes a sensor mount for a bicycle chainring assembly.

[0005] DE 693 33 307 T2 describes a method for switching from a current device step to a new device step in a computer-controlled switching system for a device with a plurality of device steps.

[0006] DE 696 31 853 T2 describes an auxiliary drive device for a bicycle.

[0007] US 8 607 647 B1 describes a bicycle power measurement system comprising an electronic module.

[0008] JP 2012- 145 518 A describes an encoder unit for detecting the number of revolutions of a shaft.

[0009] The internet article QUASDORF, Joachim; SCHERNER, Hartmut: System-on-Chip Comparison - Magnetic vs. Optical. May 16, 2012, 10:44 AM. 2012-05-16 (https:www.elektroniknet.de / automation / magnetisch-vs-optisch.88353.html) describes a comparison of optical and magnetic position sensors.

[0010] It is an object of the present invention to provide an improved bicycle shift control device. OVERVIEW OF THE INVENTION

[0011] This problem is solved by a bicycle shift control device according to the independent claims. Advantageous embodiments are defined in the dependent claims.

[0012] According to a first aspect of the present invention, a bicycle shift control device comprises a detection target, a rotation position detection unit, and a derailleur controller. The detection target is rotatable together with a sprocket assembly. The rotation position detection unit is configured to detect the rotation position of the sprocket assembly and includes an image sensor, which is equipped to capture and hold a target image of the detection target. The derailleur controller is configured to calculate the rotation position of the sprocket assembly based on the target image captured by the image sensor and is configured to control a derailleur based on the rotation position calculated by the derailleur controller.The derailleur controller is designed to store: an actuation time during which the derailleur shifts a bicycle chain between a sprocket and an additional sprocket of the sprocket arrangement, whereby the additional sprocket may be adjacent to the sprocket without a further sprocket, in a memory of the derailleur controller; a shift time or shift timing at which the derailleur begins to shift the bicycle chain based on the actuation time stored in the derailleur controller; and a current rotational position, which is / is detected by the rotational position detection unit when an actuation signal to activate the derailleur from an actuating device is / is input to the derailleur controller.

[0013] Preferably, the bicycle shift control unit is / is designed such that the detection target comprises a reference pattern indicating the absolute rotational position of the sprocket assembly. The image sensor can be / be designed to capture a sample image of the reference pattern as the target image. The derailleur controller can be / be designed to calculate the absolute rotational position of the sprocket assembly based on the sample image captured by the image sensor. The derailleur controller can be / be designed to control the front derailleur based on the absolute rotational position calculated by the bicycle shift control unit.

[0014] According to a further aspect of the present invention, a bicycle shift control device comprises a detection target, a rotation position detection unit, and a derailleur controller. The detection target is rotatable together with a sprocket assembly. The rotation position detection unit is / is configured to be in contact with the detection target and to detect a rotation position of the detection target that is the rotation position of the sprocket assembly. The derailleur controller is / is configured to control a derailleur based on the rotation position detected by the rotation position detection unit. The rotation position detection unit includes a detection gear and a sensor, and the sensor includes a contact rotation position sensor.

[0015] Preferably, the bicycle shift control device is / is designed such that the gear ring assembly is / is designed to be rotatably supported by a housing element which is / is designed to be rotatable in relation to a shaft element.

[0016] Preferably, the bicycle shift control device is / is designed such that the rotation position detection unit and the detection target are / are provided outside the housing element.

[0017] According to a further aspect of the present invention, a bicycle shift control device comprises a rotation position sensing unit and a derailleur controller. The rotation position sensing unit is configured to detect the rotational position of a sprocket assembly, which is configured to be rotatably supported by the housing element, which is configured to be rotatable with respect to a shaft element. The rotation position sensing unit is arranged inside the housing element. The derailleur controller is configured to control a derailleur based on the rotational position detected by the rotation position sensing unit. The housing element is a sprocket support body of a bicycle hub assembly, and the shaft element is a hub shaft of the bicycle hub assembly. A cavity is defined between the shaft element and the housing element.The rotary position detection unit is / will be provided in the cavity and a detection target is / will be provided in the cavity.

[0018] Preferably, according to this aspect, the bicycle shift control apparatus further comprises a bicycle hub assembly. The bicycle hub assembly can include the shaft element and the housing element. The housing element can be configured to rotate together with the gear ring assembly and can be provided radially outwards from the shaft element. The rotation position detection unit can be provided between the shaft element and the housing element.

[0019] Preferably, according to this aspect, the bicycle shift control device further comprises a detection target which is rotatable together with the gear assembly and is provided / is provided inside the bicycle hub assembly. The rotation position detection unit can be / be configured to detect a rotation position of the detection target as the rotation position of the gear assembly without being in contact with or coming into contact with the detection target.

[0020] Preferably, the bicycle shift control apparatus, according to this aspect, further comprises a bicycle hub assembly. The bicycle hub assembly can include the shaft element and the housing element. The housing element can be designed to rotate together with the gear ring assembly and is provided radially outwards by the shaft element. The sensing target can be mounted on an inner periphery of the housing element. The rotation position sensing unit can be mounted on an outer periphery of the shaft element to face the sensing target.

[0021] According to an alternative preferred embodiment, the bicycle shift control device further comprises a detection target which is rotatable together with the gear assembly and is provided within the housing element. The rotation position detection unit can be configured to be in contact with the detection target or to detect a rotation position of the detection target that is the rotation position of the gear assembly.

[0022] Preferably, according to this alternative preferred embodiment, the bicycle shift control device is / is configured such that the detection target comprises an output gear which is rotatable together with the gear ring assembly. The rotation position detection unit can include a detection gear and a sensor. The detection gear can be configured to mesh with the output gear. The sensor can be configured to detect the rotation position of the detection target based on the rotation position of the detection gear.

[0023] Preferably, the bicycle shift control device is / is designed such that the detection target comprises an output gear which is rotatable together with the gear ring assembly. The rotation position detection unit can include a detection gear and a sensor. The detection gear can be / be designed to engage with the output gear. The sensor can be / be designed to detect the rotation position of the detection target based on the rotation position of the detection gear.

[0024] Preferably, the bicycle shift control device is / is designed such that the derailleur controller is / is configured to store an actuation time during which the derailleur shifts a bicycle chain between a sprocket and an additional sprocket of the sprocket assembly. The additional sprocket may be adjacent to the sprocket without any further sprocket. The derailleur controller may be configured to calculate a shift time at which the derailleur begins to shift the bicycle chain, based on the actuation time stored in the derailleur controller and a current rotational position detected by the rotational position sensing unit when an actuation signal for the derailleur is input to the derailleur controller by an actuating device.

[0025] Preferably, the bicycle shift control device is / is designed such that the derailleur controller is / is designed to control the front derailleur to begin shifting the bicycle chain at the shifting time or shift timing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] A more complete appreciation of the invention and many of its anticipated advantages will be readily obtained once it is better understood with reference to the following detailed description and consideration of the accompanying drawings, wherein: The Fig. Figure 1 is a side elevation view of a bicycle which is / will be provided with a bicycle shift control device according to a first embodiment; The Fig. Figure 2 is a side elevation view of a bicycle sprocket assembly, as shown in Fig. 1 shown; The Fig. Figure 3 is a half-section view of a bicycle hub assembly, as shown in Fig. 1 shown; The Fig. Figure 4 is a side elevation view of a gear ring of the gear ring assembly, as shown in Fig. 2 shown; The Fig. Figure 5 is a side elevation view of a gear ring of the gear ring assembly, as shown in Fig. 2 shown; The Fig. Figure 6 is a side elevation view of a gear ring of the gear ring assembly, as shown in Fig. 2 shown; The Fig. Figure 7 is a side elevation view of the gear ring of the gear ring assembly, as shown in Fig. 2 shown; The Fig. Figure 8 is a partial half-section view of the bicycle hub arrangement, as shown in Fig. 3 shown; The Fig. Figure 9 is a schematic block diagram of the bicycle shift control unit, as shown in Fig. 1 shown; The Fig. Figure 10 shows an example of a list of actuation times for the gear ring arrangement, as in Fig. 2 shown; The Fig. Figure 11 shows an example of a list of reference rotation positions for the gear ring arrangement, as in Fig. 2 shown; The Fig. Figure 12 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of the sprocket assembly and a bicycle chain during downshifting; The Fig. Figure 13 is a partial rear elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of a derailleur during downshifting; The Fig. 14 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of the sprocket assembly and a bicycle chain during downshifting; The Fig. Figure 15 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of the sprocket assembly and the bicycle chain during downshifting; The Fig. Figure 16 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. 2 shown, for a description of the actions of the sprocket assembly and the bicycle chain during an upshift; The Fig. 17 is a partial rear elevation view of the gear rings of the gear ring assembly, as in Fig. 2 shown, for a description of the rear derailleur's actions during an upshift; The Fig. Figure 18 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of the sprocket assembly and the bicycle chain during downshifting; The Fig. Figure 19 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates the operation of the sprocket assembly and the bicycle chain during downshifting; The Fig. 20 is a flowchart illustrating the operation of the bicycle shift control device, as shown in Fig. 9 shown; The Fig. Figure 21 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates a description of a relationship between a reference rotation position, an initial rotation position, and a current rotation position; The Fig. 22 is a flowchart illustrating the operation of the bicycle shift control device, as shown in Fig. 9 shown; The Fig. Figure 23 is a side elevation view of the gear rings. The gear ring arrangement, as shown in Fig. Figure 2 illustrates a description of a relationship between the reference rotation position, the starting rotation position, and the current rotation position; The Fig. Figure 24 is a side elevation view of the gear rings of the gear ring assembly, as shown in Fig. Figure 2 illustrates a description of a relationship between the reference rotation position, the starting rotation position, and the current rotation position; The Fig. 25 is a partial half-section view of the bicycle hub assembly with a bicycle shift control device according to a second embodiment; The Fig. 26 is a partial half-section view of the bicycle hub assembly with a bicycle shift control device according to a third embodiment; The Fig. 27 is a partial half-section view of the bicycle hub assembly with a bicycle shift control device according to a fourth embodiment; and The Fig. Figure 28 is a partial half-section view of the bicycle hub assembly with a bicycle shift control apparatus according to a fifth embodiment. DESCRIPTION OF EXECUTION FORMS

[0027] The embodiments will now be described with reference to the accompanying drawings, where the same reference numerals denote corresponding or identical elements across the different drawings. First embodiment

[0028] Initially referring to Fig. Figure 1 shows a bicycle 10 equipped with a bicycle shift control device 12 according to a first embodiment. While the bicycle 10 is shown as a road bicycle, the bicycle shift control device 12 can also be used in the case of mountain bikes or other types of bicycles.

[0029] As in Fig. As shown in Figure 1, the bicycle 10 includes a handlebar 1, a saddle 2, a bicycle frame 3, a crank assembly 4, a rear sprocket assembly 5, a front actuating device 6, a rear actuating device 7, an electric (motorized) front derailleur 8, and an electric (motorized) rear derailleur 9. A bicycle chain C engages with a chainring 4a of the crank assembly 4 and the rear sprocket assembly 5. The electric front derailleur 8 is configured to shift the bicycle chain C between a plurality of front gear positions in response to actuation of the front actuating device 6. The electric rear derailleur 9 is configured to shift the bicycle chain C between a plurality of rear gear positions in response to actuation of the rear actuating device 7.The front actuating device 6 is / will be integrated or installed in a left-hand actuating device by means of which a user actuates a rear brake device B1. The rear actuating device 7 is / will be installed or integrated in a right-hand actuating device by means of which a user actuates a front brake device B2.

[0030] In the case of the present application, the directional terms "front", "rear", "forward", "backward", "left", "right", "across", "upward", and "downward", as well as any other similar directional terms, refer to directions determined based on a user (e.g., a cyclist) sitting on a saddle 2 of a bicycle facing the handlebars 1. Accordingly, these terms, as used here to describe bicycle components, are to be understood in relation to the bicycle 10, which is equipped with the bicycle components, when used in an upright riding position on a horizontal surface.

[0031] The bicycle 10 includes a battery unit BU and a main unit MU. The battery unit BU and the main unit MU are mounted on the bicycle frame 3. The battery unit BU is designed to supply electrical power or current to several electrical components, such as the main unit MU, the electric front derailleur 8, and the electric rear derailleur 9. The main unit MU is designed to control several electrical components. In the illustrated embodiment, electrical components of the bicycle shift control unit 12 are at least partially mounted in the main unit MU.However, the electrical components of the bicycle shift control unit 12 can be at least partially mounted in other electrical components, such as the front shifter 6, the rear shifter 7, the electric front derailleur 8, and the electric rear derailleur 9, if required and / or desired. For example, the electrical components of the bicycle shift control unit 12 can be at least partially mounted in the rear derailleur 9.

[0032] In the illustrated embodiment, the bicycle shift control device 12 will be described in detail below using the rear sprocket assembly 5, the rear actuating device 7, and the electric rear derailleur 9. The rear sprocket assembly 5 may be referred to below as a sprocket assembly 5. The rear actuating device 7 may be referred to below as an actuating device 7. The electric rear derailleur 9 may be referred to below as a derailleur 9.

[0033] As in Fig. As shown in Figure 2, the gear assembly 5 has a central axis of rotation A1 and is rotatable about this central axis in a rotary drive direction D11 during pedaling. The gear assembly 5 includes gears S1 to S11. Gear S1 has the largest outer diameter in the gear assembly 5. Gear S11 has the smallest outer diameter in the gear assembly 5.

[0034] As in Fig. As shown in Figure 3, the gear rings S1 to S11 are arranged in an axial direction D2, which is parallel to the axis of rotation A1. The bicycle shift control unit 12 comprises a bicycle hub assembly 14. The gear rings S1 to S11 are mounted on the bicycle hub assembly 14.

[0035] The bicycle hub assembly 14 includes a shaft element 16 and a housing element 18. In the illustrated embodiment, the bicycle shift control device 12 is used with the rear sprocket assembly 5 and the front derailleur 9. Accordingly, the housing element 18 is a sprocket support body of the bicycle hub assembly 14, and the shaft element 16 is a hub axle of the bicycle hub assembly 14. If the bicycle shift control device 12 is used with the front derailleur 8, the housing element 18 can, for example, be a bottom bracket shell of the bicycle frame 3 (see figure). Fig. 1) be, and the shaft member 16 can be a crankshaft of the crank arrangement 4 (see Fig. 1) be.

[0036] As in Fig. As shown in Figure 3, the shaft member 16 is designed for mounting on the bicycle frame 3 and extends in an axial direction D2. The housing member 18 is designed to rotate with the gear assembly 5 and is provided radially outwards by the shaft member 16. The gear assembly 5 is designed to be rotatably supported by the housing member 18, which is designed to be rotatable with respect to the shaft member 16. In the illustrated embodiment, the housing member 18 has a cylindrical shape extending in the axial direction D2. The housing member 18 includes an outer spline part 20, which is designed to engage with an inner spline section of the gear assembly 5.

[0037] The wave link 16 includes a tubular part 16a, a first end cap 16b, a second end cap 16c, and a mounting rod 16d. The tubular part 16a extends in the axial direction D2. The first end cap 16b is secured to a first end of the tubular part 16a. The second end cap 16c is secured to a second end of the tubular part 16a. The mounting rod 16d extends through the tubular part 16a, the first end cap 16b, and the second end cap 16c in the axial direction D2. The mounting rod 16d is designed for mounting on the bicycle frame 3. The tubular part 16a, the first end cap 16b, and the second end cap 16c are supported by the mounting rod 16d.

[0038] The bicycle hub assembly 14 further includes a hub shell 22, first bearing assemblies 24, second bearing assemblies 26, and a ratchet mechanism 28. The hub shell 22 is / is designed to be rotatably supported on the shaft member 16 about the axis of rotation A1. A rim (not shown) is / is connected to the hub shell 22 by means of spokes (not shown). The first bearing assemblies 24 are / are designed to rotatably support the housing member 18 on the shaft member 16. The second bearing assemblies 26 are / are designed to rotatably support the hub shell 22 on the shaft member 16. One of the first bearing assemblies 24 is / is mounted on the first end cap 16b of the shaft member 16. The other bearing assembly from the first set 24 is / will be mounted on the tubular part 16a of the shaft member 16. One bearing assembly from the second set 26 is / will be mounted on the second end cap 16c of the shaft member 16.The other bearing arrangements 26 are mounted on the tubular part 16a of the shaft member 16;

[0039] As in Fig. As can be seen in Figure 3, the ratchet structure 28 serves as a one-way coupling for transmitting a drive force from the housing member 18 to the hub housing 22. In particular, the ratchet structure 28 is designed to prevent the housing member 18 from rotating relative to the hub housing 22 in the direction of rotation D11 (see Figure 3). Fig. 2) rotates. The ratchet structure 28 is / will be further designed to allow the housing link 18 to rotate in a reverse direction D12 with respect to the hub housing 22 (see Fig. 2), which is opposite to the direction of rotation D11, rotates.

[0040] The gear ring assembly 5, the housing member 18 and the hub housing 22 are / are designed to function together or as a unit with respect to the shaft member 18 in the rotary drive direction D11 (see Fig. 2) to rotate during pedaling. The gear assembly 5 and the housing member 18 are / will be designed to perform a relative rotation in the reverse direction D12 (see Fig. 2) with respect to the shaft element 16 and the hub housing 22, in order to prevent any force from the hub housing 22 being transmitted to the sprocket assembly 5 during idling. Since the bicycle hub assembly 14 includes structures known in the field of bicycles, they will not be described and / or illustrated in further detail here for the sake of brevity.

[0041] As in Fig. As shown in Figure 3, the derailleur 9 includes a chain guide 9a and a chain actuator 9b. The chain guide 9a is designed to engage with the bicycle chain C and to shift the bicycle chain C between the sprockets S1 to S11. The guide actuator 9b is designed to move the chain guide 9a relative to the bicycle hub assembly 14. Since the derailleur 9 includes structures that are well-known in the field of bicycles, they will not be described and / or illustrated in further detail here for the sake of brevity.

[0042] An upshift occurs when the bicycle chain C is shifted by the front derailleur 9 from a larger sprocket to an adjacent smaller sprocket in an upshift direction D31. A downshift occurs when the bicycle chain C is shifted by the front derailleur 9 from a smaller sprocket to an adjacent larger sprocket in a downshift direction D32.

[0043] As in Fig. As shown in Figure 2, the gear rings S1 to S11 have a shifting aid structure designed to support a shifting movement of the bicycle chain C. In the illustrated embodiment, the gear rings S1 to S11 each have the shifting aid structures AS1 to AS11.

[0044] As in Fig. As shown in Figure 4, the shifting aid structure AS1 of the sprocket S1 opens at least one shifting aid recess. In the illustrated embodiment, the shifting aid structure AS1 opens upshifting aid recesses ASU11 to ASU14 and downshifting aid recesses ASD11 to ASD14 as the at least one shifting aid recess. The upshifting aid recesses ASU11 to ASU14 are / are designed to assist an upshifting movement of the bicycle chain 10. The downshifting aid recesses ASD11 to ASD14 are / are designed to assist a downshifting movement of the bicycle chain C. In particular, the upshifting aid recesses ASU11 to ASU14 are / are designed to reduce or diminish disturbances between the sprocket S1 and the bicycle chain C in the upshifting direction of the bicycle chain C.The downshifting aid recesses ASD11 to ASD14 are / are designed to reduce disturbances between the sprocket S1 and the bicycle chain C during the downshifting movement of the bicycle chain C.

[0045] As in Fig. As shown in Figure 5, the shifting aid structure AS2 of the sprocket 2 opens at least one shifting aid recess. In the illustrated embodiment, the shifting aid structure AS2 opens up shifting aid recesses ASU21 to ASU24 and down shifting aid recesses ASD21 to ASD24 as the at least one shifting aid recess. The up shifting aid recesses ASU21 to ASU24 are / are designed to assist an up shifting movement of the bicycle chain C. The down shifting aid recesses ASD21 to ASD24 are / are designed to assist a down shifting movement of the bicycle chain C. In particular, the up shifting aid recesses ASU21 to ASU24 are / are designed to reduce interference between the sprocket S2 and the bicycle chain C during the up shifting movement of the bicycle chain C.The downshifting aid recesses ASD21 to ASD24 are / are designed to reduce disturbances between the sprocket S2 and the bicycle chain C during the downshifting movement of the bicycle chain C.

[0046] As in. Fig. As shown in Figure 6, the shifting aid structure AS3 of the sprocket 3 opens at least one shifting aid recess. In the illustrated embodiment, the shifting aid structure AS3 opens upshifting aid recesses ASU31 to ASU34 and downshifting aid recesses ASD31 to ASD34 as the at least one shifting aid recess. The upshifting aid recesses ASU31 to ASU34 are designed to assist an upshifting movement of the bicycle chain C. The downshifting aid recesses ASD31 to ASD34 are designed to assist a downshifting movement of the bicycle chain C. In particular, the upshifting aid recesses ASU31 to ASU34 are designed to reduce interference between the sprocket S3 and the bicycle chain C during the upshifting movement of the bicycle chain C.The downshifting aid recesses ASD31 to ASD34 are / are designed to reduce disturbances between the sprocket S3 and the bicycle chain C during the downshifting movement of the bicycle chain C.

[0047] Each of the switching aid structures AS1 to AS3 can include at least one switching aid tooth and / or at least one switching aid slot instead of or in addition to the at least one switching aid recess. The switching aid slot is free of an additional tooth that is designed to engage with the bicycle chain C.

[0048] Just as in the case of the switching aid structures AS1 to AS3 of the gear rings S1 to S3, each excludes from the switching aid structures AS4 to AS11 (see Fig. 2) at least one switching aid recess. Since they essentially have the same structure as the switching aid structures AS1 to AS3, they will not be described and / or illustrated in further detail here for the sake of brevity.

[0049] In the Fig. For the purposes of illustration, the sprockets S4 to S11 are omitted from the sprocket arrangement 5. Each of the upshift assist recesses ASU21 to ASU24 has a preferred upshift time (a preferred rotational position) at which the derailleur 9 shifts the bicycle chain C from sprocket S2 to sprocket S3. Similarly, each of the downshift assist recesses ASD11 to ASD14 has a preferred downshift time (a preferred rotational position) at which the derailleur 9 shifts the bicycle chain C from sprocket S2 to sprocket S1. The preferred upshift time at which the derailleur 9 shifts the bicycle chain C from sprocket S2 to sprocket S3 is defined based on the upshift assist recesses ASU21 to ASU24 of sprocket S2. The preferred downshift time orThe downshift timing, in which the derailleur 9 shifts the bicycle chain C from the sprocket S2 to the sprocket S1, is defined based on the downshift assist recesses ASD11 to ASD14 of the sprocket S1.

[0050] Shifting the bicycle chain C at the preferred upshift times reduces vibrations caused by disturbances between the bicycle chain C and the sprocket S2 during an upshift. Shifting the bicycle chain C at the preferred downshift times reduces vibrations caused by disturbances between the bicycle chain C and the sprocket S1 during a downshift.

[0051] To reduce such vibrations during upshifting and / or downshifting, the bicycle shift control device 12 is designed to adjust the time at which the derailleur 9 shifts the bicycle chain C based on a rotational position of the sprocket assembly 5. In the case of the present application, the rotational position of the sprocket assembly 5 can be described as an angle in the direction of rotation D11.

[0052] As in Fig. As shown in Figure 8, the bicycle shift control device 12 comprises a detection target 30 and a rotation position detection unit 32. The detection target 30 is rotatable together with the gear assembly 5. In the illustrated embodiment, the detection target 30 comprises an output gear, which is rotatable together with the gear assembly 5.

[0053] The rotary position detection unit 32 is / is configured to engage with the detection target 30 and thus detect the rotary position of the detection target 30 as the rotary position of the gear ring assembly 5. In the illustrated embodiment, the rotary position detection unit 32 includes a detection gear 34 and a sensor 36. The detection gear 34 is / is configured to engage with the output gear. The sensor 36 is / is configured to detect the rotary position of the detection target 30 based on the rotary position of the detection gear 34. Possible examples of the sensor 36 include a contact rotary position sensor such as a potentiometer and a non-contact rotary position sensor such as an optical sensor and a magnetic sensor. Possible examples of the optical sensor include a rotary encoder.Possible examples of the magnetic sensor include a sensor having a magnetic resistance element and a Hall sensor having a Hall element.

[0054] In the illustrated embodiment, the rotation position detection unit 32 and the detection target 30 are provided outside the housing member 18. The rotation position detection unit 32 is attached to the bicycle frame 3. The detection target 30 extends radially outwards from the housing member 18. The detection target 30 includes an inner spline section, which is designed to engage with, for example, the outer spline section 20 of the housing member 18.

[0055] As in Fig. As shown in Figure 8, the detection target 30 has an outer diameter that is larger than the diameter of the gear ring S11. The detection gear 34 is / will be arranged radially outwards from the detection target 30 and is / will be designed to mesh with the detection target 30. The detection gear 34 is / will be provided at an axial position that is essentially the same as the axial position of the detection target 30.

[0056] While the detection target 30 is / will be located on an axially outer side of the gear ring assembly 5 in the axial direction D2, the detection target 30 can be / be provided in other positions if required and / or desired. For example, the detection target 30 can be / be provided on an axially inner side with respect to the gear ring assembly 5 in the axial direction D2. The detection target 30 can be / be attached to the gear ring assembly 5 or can be the gear ring assembly 5 itself.

[0057] As in Fig. As shown in Figure 8, the sensor 36 includes a sensor housing 38 and a rotating shaft 40. The sensor housing 38 is / will be attached to the bicycle frame 3. The rotating shaft 40 is rotatable relative to the sensor housing 38. The sensing gear 34 is / will be secured to one end of the rotating shaft 40. If the sensor 36 is a potentiometer, it further includes a resistive element (not shown) and a sliding contact (not shown), which are / will be provided in the sensor housing 38. The sensor 36 is / will be configured to periodically detect the absolute rotational position of the sensing gear 34 and is / will be configured to periodically generate signals indicating the absolute rotational position of the sensing gear 34 as the current rotational position of the gear assembly 5.

[0058] As in Fig. As shown in Figure 9, the bicycle shift control unit 12 includes a derailleur controller 42. The derailleur controller 42 is designed to control the derailleur 9 based on the rotational position detected by the rotational position sensing unit 32. In the illustrated embodiment, the derailleur controller 42 is implemented as a microcomputer and includes a processor 44 and a memory 46. The processor 44 includes a central control unit (CPU). The memory 46 includes a read-only memory (ROM) and a read / write memory (RAM). For example, a program stored in the memory 46 is read into the processor 44, and several functions of the derailleur controller 42 are executed in this way.

[0059] While the functions of the switching controller 42 are / are executed by means of software, the functions of the switching controller 42 can be executed or carried out at least partially by hardware or a combination of software and hardware.

[0060] The switching control unit 42 is / will be configured to store in memory 46 the current rotational position of the gear ring assembly 5, which is / will be detected by the rotational position sensing unit 32. The switching control unit 42 is / will be configured to periodically update the current rotational position stored in memory 46 based on the current rotational position detected by the rotational position sensing unit 32.

[0061] As in Fig. As shown in Figure 9, the bicycle shift control unit 12 comprises a motor driver 48 and a position sensor 50. The motor driver 48 and the position sensor 50 can be provided in the derailleur 9. The motor driver 48 is configured to control the guide actuator 9b based on commands and / or signals from the derailleur controller 42. Possible examples of the guide actuator 9b include a direct current (DC) motor and a stepper motor.

[0062] The position sensor 50 is / will be configured to detect the current shift position of the derailleur 9. In particular, the position sensor 50 is / will be configured to detect the current axial position of the chain guide 9a with respect to the sprocket assembly 5. Possible examples of the position sensor 50 include a contact rotary position sensor such as a potentiometer, as well as a non-contact rotary position sensor such as an optical sensor and a magnetic sensor. Possible examples of the optical sensor include a rotary encoder. Possible examples of the magnetic sensor include a sensor comprising a magnetic resistance element and a Hall sensor comprising a Hall element.

[0063] The guide actuator 9b, the motor driver 48, and the position sensor 50 form a servo motor. The derailleur controller 42 is / will be configured to determine the current shift position of the derailleur 9, based on the current axial position detected by the position sensor 50. The derailleur controller 42 is / will be configured to store the current axial position of the chain guide 9a as the current shift position in memory 46.

[0064] As in Fig. As shown in Figure 9, the actuating device 7 includes a first actuating element SR1 and a second actuating element SR2. The first actuating element SR1 is / will be configured for user actuation for upshifting. The second actuating element SR2' is / will be configured for user actuation for downshifting. An upshift actuation signal is / will be input from the actuating device 7 to the switching controller 42 when the first actuating element SR1' is / will be actuated. A downshift actuation signal is / will be input from the actuating device 7 to the switching controller 42 when the second actuating element SR2 is / will be actuated.

[0065] The switching controller 42 is / will be configured to calculate the current rotational speed of the gear ring assembly 5 based on the rotational positions detected by the rotational position sensing unit 32. Specifically, the switching controller 42 is / will be configured to periodically calculate the current rotational speed of the gear ring assembly 5 based on a rotational angle of the gear ring assembly 5 per unit of time. The switching controller 42 is / will be configured to store the current rotational speed in memory 46. The switching controller 42 is / will be configured to periodically update the current rotational speed stored in memory 46. Other rotational speed sensors can be used instead of the rotational position sensing unit 32 if required and / or desired.

[0066] As in Fig. As can be seen in Figure 9, the derailleur controller 42 is / will be configured to store an actuation time during which the derailleur 9 shifts the bicycle chain C between a sprocket and an additional sprocket of the sprocket assembly 5. The additional sprocket is adjacent to the sprocket without any other sprocket. For example, the derailleur controller 42 is / will be configured to store the actuation time during which the derailleur 9 shifts the bicycle chain C between two adjacent sprockets under sprockets S1 to S11 (see Figure 9). Fig. 4) shifts. In particular, the derailleur controller 42 is / is designed to store actuation times during which the derailleur 9 shifts the chain guide 9a between adjacent two shift positions below the shift positions, which each correspond to the sprockets S1 to S11.

[0067] Fig. Figure 10 shows an example of a list of activity times. As in Fig. The switchgear controller 42 ( 10 can be seen) Fig. 9) designed to store actuation times TU1 to TD11 in memory 46 (see Fig. 9). In fact, the derailleur controller 42 serves as an actuation time memory, which is / will be designed to store actuation time during which the derailleur 9 shifts the bicycle chain C between a sprocket and an additional sprocket of the sprocket arrangement 5.

[0068] For example, the actuation time TU2 is a period of time during which the derailleur 9 engages the chain guide 9a during an upshift from a shift position corresponding to the sprocket S2 (see Fig. 8) corresponds to a switching position which switches the gear S3 (see Fig. 8) corresponds. The actuation time TD2 is a time period during which the switch 9 moves the chain guide 9a during a downshift from the shift position corresponding to the sprocket S2 to a shift position corresponding to the sprocket S1.

[0069] As in Fig. As shown in Figure 9, the derailleur controller 42 is designed to calculate a shift time at which the front derailleur 9 begins to shift the bicycle chain C, based on the actuation time and the current rotational position. The current rotational position is detected by the rotational position sensing unit 32 when an actuation signal for the front derailleur 9 is sent from the actuation device 7 to the derailleur controller 42. The derailleur controller 42 is designed to store the current rotational position, which is detected by the rotational position sensing unit 32, when the upshift actuation signal for the front derailleur is sent from the actuation device 9 to the derailleur controller 42.In addition, the derailleur control unit 42 is / will be designed to store the current rotational position, which is / will be detected by the rotational position detection unit 32, when the downshift actuation signal for an actuation of the derailleur 9 by the actuating device 7 is / will be input to the derailleur control unit 42.

[0070] The derailleur controller 42 is / is configured to control the front derailleur 9 in order to begin shifting the bicycle chain C at the specified shift time. In the illustrated embodiment, the derailleur controller 42 is / is configured to store the current rotational position. The derailleur controller 42 serves as a timing device, which is / is configured to calculate a shift time at which the front derailleur 9 begins shifting the bicycle chain C, based on the actuation time and the current rotational position.

[0071] Fig. Figure 11 shows an example of a list of reference rotation positions. As in Fig. As shown in Figure 11, the derailleur control unit 42 is configured to store a reference rotational position, where the derailleur 9 completes a shift of the chain guide 9a from a current shift position to a target shift position adjacent to the current shift position. In the illustrated embodiment, the derailleur control unit 42 is configured to store at least one reference rotational position for each of the sprockets S1 to S11.

[0072] As in Fig. As shown in Figure 7, the gear ring S2 has reference rotation positions PU21 to PU24 for the upshift assist recesses ASU21 to ASU24. The gear ring S2 has reference rotation positions PD21 to PD24 for the downshift assist recesses ASD11 to ASD14. The reference rotation positions PU21 to PU24 are defined based on the positions of the upshift assist recesses ASU21 to ASU24 of the gear ring S2. The reference rotation positions PD21 to PD24 are defined based on the positions of the downshift assist recesses ASD11 to ASD14 of the gear ring S1.

[0073] The rotational position is defined at the gear ring assembly 5 around the rotational axis A1, from 0 to 360 degrees. A positive direction of the rotational position coincides with the reverse direction D12, which is opposite to the rotary drive direction D11. The current rotational position can be detected by the rotational position sensing unit 32 (see Fig. 9) be / will be detected based on the reference line L1, which extends radially outwards from the axis of rotation A1 towards a lower side of the gear ring assembly 5. For example, the rotational position of the gear ring 5, as in Fig. 7 shown, 180 degrees.

[0074] As in Fig. 12 and Fig. As can be seen, for example, in Figure 13, the derailleur 9 preferably completes a shifting of the chain guide 9a starting from a shifting position SP2 (see Figure 13). Fig. 13), which corresponds to the gear ring S2, towards a switching position SP1 (see Fig. 13), which corresponds to the gear ring S1 when or immediately before the reference rotation position PD23 reaches the reference line L1.

[0075] As in Fig. 14 and Fig. As can be seen, for example, in Figure 15, a tooth T1 of the sprocket S1 engages with the bicycle chain C when the sprocket assembly 5 continues to rotate in the direction of rotation D11. At this time, the downshifting aid recesses ASD13 reduce interference between the sprocket S1 and the bicycle chain C.

[0076] As in Fig. 16 and Fig. As can be seen in Figure 17, the derailleur 9 preferably completes a shifting of the chain guide 9a from the shifting position SP2 to a shifting position SP3, which corresponds to the sprocket S3, when or immediately before the reference rotation position PU24 reaches the reference line L1.

[0077] As in Fig. 18 and Fig. As can be seen, for example, in Figure 19, tooth T2 disengages from the bicycle chain C when the sprocket assembly 5 continues to rotate in the drive direction D11. At this time, the downshift assist recesses ASU24 reduce interference between the sprocket S2 and the bicycle chain C.

[0078] As in Fig. As can be seen in Figure 9, the derailleur controller 42 is designed to calculate the shifting time or shifting time at which the derailleur 9 begins to shift the bicycle chain C, based on the actuation time (see Figure 9). Fig. 10), the current rotational position, the reference rotational position (see Fig. 11) and the current rotational speed of the gear ring arrangement 5.

[0079] In particular, the switching mechanism controller 42 is / will be configured to calculate a rotation angle AG1 of the gear ring assembly for the actuation time T1 based on the actuation time T1 and the current rotational speed RS1 based on the following formula (1). AG1=T1×RS1

[0080] The switching control unit 42 is / will be configured to select a reference position group that includes the reference rotary positions, starting from the reference rotary positions that are / will be stored in memory 46, based on the current switching position stored in memory 46 and the actuation signal input by the actuating device 7. For example, the switching control unit 42 selects a reference position group that includes the reference rotary positions PU21 to PU24 (see Fig. 11) includes when an up-switching signal is / is input from the actuating device 7 in a case where the current switching position is the switching position SP2 (see Fig. 13) is, which corresponds to the gear ring S2.

[0081] The switching control unit 42 is / will be configured to select a chosen reference rotary position from among the reference rotary positions of the reference position group, which is / will be selected based on the current switching position and the actuation signal. In particular, the switching control unit 42 is / will be configured to select a reference rotary position from the reference position group of the current rotary position RP3 (see Fig. 7) is closest, and which is located on a downstream or driven-side side of the current rotation position RP3. The current rotation position RP3 is a rotation position of the gear ring assembly 5, which is located at the reference line L1 (see Fig. 7) is / will be ordered.

[0082] When the upshift actuation signal is / is input from the actuating device 7, when the gear ring assembly 5 is in a rotational position, as shown in Fig. As shown in 7, the switchgear controller 42 selects the reference rotation position PU24 as the selected reference rotation position RP1. When the downshift actuation signal is input from the actuating device 7, and the gear ring assembly 5 is in a rotation position as shown in 7, the switchgear controller 42 selects the reference rotation position PU24 as the selected reference rotation position RP1. Fig. As shown in Figure 7, the switchgear controller 42 selects the reference rotary position PD24 as the selected reference rotary position RP1.

[0083] The switching control unit 42 is / will be designed to calculate a starting rotation position RP2 (see Fig. 7), where the derailleur 9 begins to shift the chain guide 9a from the current shift position to the target shift position which is adjacent to the current shift position, based on the rotation angle AG1 and the selected reference rotation position RP1 using the following formula (2). RP2=RP1−AG1

[0084] The switching control unit 42 is / will be designed to determine whether the starting rotational position RP2 is equal to or greater than the current rotational position RP3 (see Fig. 7). In particular, the switching controller 42 is / will be configured to determine whether the starting rotational position RP2 is / will be arranged at a position which is equal to the current rotational position RP3 or on a downstream side of the current rotational position RP3 (see Fig. 7) is located. In the case of the illustrated embodiment, for example, the current rotational position RP3 is a current rotational position which is / is detected by the rotational position detection unit 32 when the actuation signal to actuate the derailleur 9 from the actuating device 7 is / is input to the derailleur controller 42.

[0085] In a case where the derailleur controller 42 determines that the starting rotation position RP2 is equal to or greater than the current rotation position RP3, the derailleur controller 42 controls the front derailleur 9 to begin shifting the chain guide 9a from the current shift position to the adjacent shift position when the sprocket assembly 5 reaches the starting rotation position RP2.

[0086] In a case where the switching controller 42 determines that the starting rotational position RP2 is less than the current rotational position RP3, the switching controller 42 selects the reference rotational position located on a downstream side of the selected reference rotational position, starting from the reference position group, as the selected reference position. As in Fig. As can be seen in Figure 7, for example, the switching controller 42 selects the reference rotary position PD24, which is / will be located on a downstream side of the selected reference rotary position PD23, if the current switching position is a switching position that corresponds to the gear ring 2.

[0087] The operation of the bicycle shift control device 12 will now be described below with reference to the Fig. 7 and 20 to 24.

[0088] As in Fig. As can be seen in step 20, in one step ST1 the switching control unit 42 determines whether the actuation signal from the actuating device 7 is / will be input to the switching control unit 42.

[0089] In step ST2, the current rotational position is / will be detected by the rotational position detection unit 32 when the actuation signal from the actuating device 7 is / will be entered to the switching controller 42 and is / will be stored in memory 46 as the current rotational position RP3.

[0090] In step ST3, the current rotational speed is / will be obtained from the switching controller 42. For example, the last value of the rotational speed, which is / will be stored in memory 46, is / will be used as the current rotational speed RS1.

[0091] In step ST4, the actuation time T1 is / will be selected by the switching device controller 42 based on the current switching position, which is / will be stored in memory 46, and the actuation signal input by the switching device 7. For example, if the current switching position is switching position SP2 (see Fig. 13) is, which corresponds to the gear ring S2, and the actuation signal is the downshift actuation signal, the actuation time TD2 is / will be (see Fig. 10) as the actuation time T1 selected by the switching controller 42.

[0092] In step ST5, the rotation angle AG1 of the gear ring assembly 5 for the actuation time T1 is calculated by the switching controller 42 based on formula (1), the current rotational speed RS1, which is detected in step ST3, and the actuation time T1 selected in step ST4. For example, if the current rotational speed RS1 is 360 [degrees / second], and the actuation time TD2 is 0.0075 [seconds], the rotation angle AG1 is calculated as shown in the following formula. AG1=T1×RS1=0.0075×360=27[degrees]

[0093] In step ST6, the reference rotary position is selected by the switching controller 42 based on the current switching position stored in memory 46 and the actuation signal input from the actuating device 7. Specifically, the reference position group, which includes at least one reference rotary position, is selected by the switching controller 42 based on the current switching position stored in memory 46 and the actuation signal input from the actuating device 7. For example, the switching controller 42 selects a reference position group that includes the reference rotary positions PU21 to PU24 if the upshift actuation signal from the actuating device 7 is input in a case where the current switching position is switching position SP2 (see Fig. 13) is, which corresponds to the gear ring S2.

[0094] One of the reference rotation positions is / is selected as the selected reference rotation position RP1 by the switching mechanism controller 42 starting from the reference position group. In the illustrated embodiment, the switching mechanism controller 42 is / is configured to select, starting from the reference position group, the reference rotation position that is closest to the current rotation position RP3 and that is / is located on a downstream side of the current rotation position RP3. If the current rotation position RP3 of the gear ring assembly 5 is, for example, a position as in Fig. As shown in Figure 21, the reference rotation position PU24 is selected by the shift control unit 42 starting from the reference rotation positions PU21 to PU24 of the gear ring S2.

[0095] As in Fig. As shown in Figure 20, in step ST7 the starting rotation position RP2 is calculated by the switchgear controller 42 based on the rotation angle AG1, the selected reference rotation position RP1, and formula (2). For example, if the rotation angle AG1 is 27 degrees / second, and the angle of the selected reference rotation position RP1 is 230 degrees, the starting rotation position RP2 is calculated as shown in the following formula. RP2=RP1−AG1=230−27=203[degrees]

[0096] As in Fig. As shown in 22, the switching controller 42 determines in steps ST8 and ST9 whether the starting rotational position RP2 is equal to or greater than the current rotational position RP3. As shown in Fig. As shown in Figure 21, in a case where the starting rotation position RP2 is greater than the current rotation position RP3, the current rotation position RP3 is repeatedly detected by the rotation position detection unit 32 until the current rotation position RP3 equals the starting rotation position RP2 (step ST10). In fact, the derailleur controller 42 controls the front derailleur 9 to postpone the start of a shift of the bicycle chain C until the current rotation position RP3 equals the starting rotation position RP2.

[0097] As in Fig. 22 and Fig. As shown in Figure 23, in a case where the starting rotation position RP2 is equal to the current rotation position RP3, the front derailleur 9 is controlled by the derailleur controller 42 to begin shifting the bicycle chain C. In particular, the front derailleur 9 is controlled by the derailleur controller 42 to begin shifting the chain guide 9a from the current shift position to the adjacent shift position (step ST 11). The front derailleur 9 therefore shifts the chain guide 9a from the current shift position to the target shift position when, or immediately before, the sprocket assembly 5 reaches the selected reference rotation position PR1 (see Figure 23). Fig. 16) is reached. This can shorten the time during which the bicycle chain C SLIDES with an axial surface of the sprocket, allowing for smoother shifting of the bicycle chain. In step ST12, the current shift position is updated by the derailleur controller 42, and the process returns to step ST1 (see below). Fig. 20).

[0098] In step ST8 from Fig. 22 is / becomes in a case where the starting rotation position RP2 is smaller than the current rotation position RP3 (see Fig. 24) is determined by the switching control 42 whether a different reference rotation position exists in the case of the gear ring, which corresponds to the current switching position (ST13). If a different reference rotation position exists, the reference rotation position located on a downstream side of the selected reference rotation position is selected again from the reference position group as the selected reference rotation position (step ST14). For example, the switching control 42 selects the reference rotation position PU21, which is located on a downstream side of the reference rotation position PU24. If no other reference rotation position exists, step ST8 is repeated.

[0099] In the case of the bicycle shift control unit 12, the derailleur controller 42 is designed to control the front derailleur 9 based on the rotational position detected by the rotational position sensing unit 32. Accordingly, it is possible to adjust the timing of the shifting operation, at which the front derailleur 9 shifts the bicycle chain C based on the rotational position detected by the rotational position sensing unit 32. This allows for smoother shifting of the bicycle chain C. Second embodiment

[0100] A bicycle shift control device 212 according to a second embodiment will be described below with reference to Fig. 25. The bicycle shift control device 212 has the same design as the bicycle shift control device 12, except for the arrangement of the detection target and the rotation position detection unit. Such elements, which essentially have the same function as those in the first embodiment, will therefore be numbered identically here and, for the sake of brevity, will not be described and / or illustrated in detail again.

[0101] As in Fig. As shown in Figure 25, unlike in the first embodiment, the rotary position sensing unit 32 of the bicycle shift control device 212 is provided inside the housing member 18. The rotary position sensing unit 32 is provided between the shaft member 16 and the housing member 18. In particular, the rotary position sensing unit 32 is provided between the shaft member 16 and the housing member 18 in a radial direction that is perpendicular to the axis of rotation A1. The rotary position sensing unit 32 is mounted on an outer periphery of the shaft member 16.

[0102] A cavity 260 is defined between the shaft member 16 and the housing member 18. The cavity 260 is provided between the first bearing arrangements 24 in the axial direction D2. The cavity 260 has an annular shape. The rotary position detection unit 32 is provided in the cavity 260.

[0103] As in Fig. As shown in Figure 25, the bicycle shift control apparatus 212 further comprises a detection target 230, which is rotatable together with the gear assembly 5. The rotation position detection unit 32 is / will be designed to be in contact with the detection target 230, or to detect a rotation position of the detection target 230 as the rotation position of the gear assembly 5.

[0104] The detection target 230 is / will be provided inside the housing member 18. The detection target 230 is / will be provided between the shaft member 16 and the housing member 18. In particular, the detection target 230 is / will be provided between the shaft member 16 and the housing member 18 in the radial direction, which is perpendicular to the axis of rotation A1. The detection target 230 is / will be provided in the cavity 260. The detection target 230 is / will be mounted on an inner periphery of the housing member 18.

[0105] As in Fig. As shown in Figure 25, the detection target 230 comprises an output gear which is rotatable together with the gear ring assembly 5. The detection gear 34 is / will be designed to mesh with the output gear. The sensor 36 is / will be designed to detect the rotational position of the detection target 230 based on the rotational position of the detection gear 34.

[0106] In the illustrated embodiment, the detection target 230 is a ring gear which includes internal teeth provided on an inner periphery of the ring gear. The detection gear 34 is / is provided radially inwards from the detection target 230 in order to mesh with the internal teeth of the detection target 230.

[0107] As in Fig. As can be seen in Figure 25, the bicycle shift control unit 212 can include a battery 262, which is designed to supply the rotary position sensing unit 32 with electrical power or current. The battery 262 is provided in the cavity 260. The battery 262 is mounted on the outer periphery of the shaft link 16. The rotary position sensing unit 32 is electrically connected to the battery 262. The rotary position sensing unit 32 can be electrically connected to the battery unit BU (see Figure 25). Fig. 1) To be / be connected when needed and / or desired.

[0108] The derailleur control unit 42 of the bicycle shift control unit 212 is / is configured to control the derailleur 9, as described in the first embodiment. Therefore, in the case of the bicycle shift control unit 212, it is possible to obtain essentially the same advantageous effects as in the case of the bicycle shift control unit 12 according to the first embodiment.

[0109] Since, in addition, the detection target 230 and the rotary position detection unit 32 are provided inside the housing element 18 of the bicycle hub assembly 14, a simplification of the design of the bicycle shift control apparatus 212 is possible. Third embodiment

[0110] A bicycle shift control device 312 according to a third embodiment will be described below with reference to the Fig. 26. The bicycle shift control unit 312 has the same design as the bicycle shift control unit 212, except for the detection target and the rotation position detection unit. Such elements, which have essentially the same functions as those in the embodiments mentioned above, will therefore be numbered identically here and, for the sake of brevity, will not be described and / or illustrated again in detail.

[0111] As in Fig. As shown in Figure 26, the bicycle shift control apparatus 312 comprises a rotation position detection unit 332 and the derailleur controller 42. The rotation position detection unit 332 is / is configured to detect the rotation position of the sprocket assembly 5, which is / is configured to be rotatably supported by the housing element 18, which is / is configured to be rotatable with respect to the shaft element 16. The derailleur controller 42 is / is configured to control the front derailleur 9 based on the rotation position detected by the rotation position detection unit 332.

[0112] As in the second embodiment, the rotary position detection unit 332 is / is provided inside the housing member 18. The rotary position detection unit 332 is / is provided between the shaft member 16 and the housing member 18. In particular, the rotary position detection unit 332 is / is provided between the shaft member 16 and the housing member 18 in the radial direction, which is perpendicular to the axis of rotation A1. The rotary position detection unit 332 is / is provided in the cavity 260.

[0113] As in Fig. As shown in Figure 26, the bicycle shift control apparatus 312 further comprises a detection target 330, which is rotatable together with the gear ring assembly 5. The detection target 330 is / is provided inside the bicycle hub assembly 14. The detection target 330 is / is provided between the shaft member 16 and the housing member 18. In particular, the detection target 330 is / is provided between the shaft member 16 and the housing member 18 in the radial direction, which is perpendicular to the axis of rotation A1. The detection target 330 is / is provided in the cavity 260.

[0114] Unlike the rotary position detection unit 32 according to the second embodiment, the rotary position detection unit 332 is designed to detect the rotary position of the detection target 330 as the rotary position of the gear ring assembly 5, without coming into contact with the detection target 330. The detection target 330 is mounted on the inner periphery of the housing member 18. The rotary position detection unit 332 is mounted on the outer periphery of the shaft member 16 so that it faces the detection target 330. The rotary position detection unit 332 is radially spaced from the detection target 330.

[0115] Possible examples of the rotary position sensing unit 332 include a non-contact rotary position sensor such as an optical sensor and a magnetic sensor. Possible examples of the optical sensor include a rotary encoder. Possible examples of the magnetic sensor include a sensor with a magnetic resistance element and a Hall sensor with a Hall element.

[0116] The detection target 330 has a ring-shaped form. The detection target 330 possesses position information that specifies the absolute rotational position of the gear ring assembly 5. Possible examples of the detection target 330 include an optical pattern and a magnetic pattern. The rotational position detection unit 332 is / will be designed to detect the position information of the detection target 330.

[0117] The derailleur controller 42 of the bicycle shift control device 312 is / is configured to control the derailleur 9, as described in the first embodiment. Therefore, in the case of the bicycle shift control device 312, it is possible to obtain essentially the same advantageous effects as in the case of the bicycle shift control device 12 according to the first embodiment.

[0118] Since, in addition, the detection target 330 and the rotary position detection unit 332 are provided inside the housing element 18 of the bicycle hub assembly 14, a simplification of the design of the bicycle shift control apparatus 312 is possible just as in the case of the second embodiment. Fourth embodiment

[0119] A bicycle shift control device 412 according to a fourth embodiment will be described below with reference to the Fig. 27. The bicycle shift control device 412 has essentially the same design as the bicycle shift control device 212, apart from the detection target and the rotation position detection unit. Elements that perform essentially the same functions as those in the embodiments mentioned above will therefore be numbered identically here and, for the sake of brevity, will not be described and / or illustrated again in detail.

[0120] As in Fig. As shown in Figure 27, the bicycle shift control apparatus 412 comprises a detection target 430, a rotation position detection unit 432, and a derailleur controller 442. The detection target 430 is rotatable together with the gear assembly 5. The rotation position detection unit 432 is / will be configured to detect a rotation position of the gear assembly 5.

[0121] As in the second embodiment, the rotary position sensing unit 432 is / is provided inside the housing member 18. The rotary position sensing unit 432 is / is provided between the shaft member 16 and the housing member 18. In particular, the rotary position sensing unit 432 is / is provided between the shaft member 16 and the housing member 18 in the radial direction, which is perpendicular to the axis of rotation A1. The rotary position sensing unit 432 is / is provided at the outer periphery of the shaft member 16. The rotary position sensing unit 432 is / is provided in the cavity 260.

[0122] As in Fig. As shown in Figure 27, the detection target 430 is / will be provided inside the bicycle hub assembly 14. The detection target 430 is / will be provided between the shaft member 16 and the housing member 18. In particular, the detection target 430 is / will be provided between the shaft member 16 and the housing member 18 in the radial direction, which is perpendicular to the axis of rotation A1. The detection target 430 is / will be provided at the inner periphery of the housing member 18. The detection target 430 is / will be provided in the cavity 260.

[0123] Unlike the embodiments mentioned above, the rotary position detection unit 432 includes an image sensor 436, which is / will be equipped to capture a target image of the detection target 430. The rotary position detection unit 432 can include an illumination element 464, which is / will be configured to at least partially illuminate the detection target 430. In fact, the rotary position detection unit 432 is / will be configured to detect the rotational position of the gear ring assembly 5 without coming into contact with the detection target 430. Possible examples of the illumination element 464 include a light-emitting diode (LED).

[0124] The derailleur controller 442 is / will be configured to calculate a rotational position of the sprocket assembly 5 based on the target image, which is / will be captured by the image sensor 436. The derailleur controller 442 is / will be configured to control the front derailleur 9 based on the rotational position, which is / will be calculated by the derailleur controller 442. The derailleur controller 442 has essentially the same functions as those of the derailleur controller 42 according to the first embodiment, except for the image processing function. Accordingly, for the sake of brevity, these same functions will not be described again in detail here.

[0125] The detection target 430 comprises a reference pattern that specifies or indicates an absolute rotational position of the gear ring assembly 5. The image sensor 436 is / will be configured to capture a sample image of the reference pattern as the target image. The detection target 430 has a ring-shaped form.

[0126] The derailleur controller 442 is / will be configured to calculate the absolute rotational position of the sprocket assembly 5 based on the pattern image captured by the image sensor 436. The derailleur controller 442 is / will be configured to control the front derailleur 9 based on the absolute rotational position calculated by the derailleur controller 442.

[0127] The derailleur control unit 442 of the bicycle derailleur control apparatus 412 is / is configured to control the derailleur 9, as described in the first embodiment. Therefore, in the case of the bicycle derailleur control apparatus 412, it is possible to obtain essentially the same advantageous effects as those of the first bicycle derailleur control apparatus 12 according to the first embodiment.

[0128] Since, in addition, the detection target 430 and the rotary position detection unit 432 are / will be arranged inside the housing element 18 of the bicycle hub assembly 14, a simplification of the design of the bicycle shift control apparatus 312 is possible just as in the case of the second embodiment. Fifth embodiment

[0129] A bicycle shift control device 512 according to a fifth embodiment will be described below with reference to the Fig. 28. The bicycle shift control unit 512 has the same design as the bicycle shift control unit 12, except for the detection target and the rotation position detection unit. Such elements, which have essentially the same function as those in the embodiments mentioned above, will therefore be numbered identically here and, for the sake of brevity, will not be described and / or illustrated again in detail.

[0130] As in Fig.As shown in Figure 28, the bicycle shift control apparatus 512 comprises the detection target 430, the rotation position detection unit 432, and the derailleur controller 442 according to the fourth embodiment. However, unlike in the fourth embodiment, the detection target 430 and the rotation position detection unit 432 are located outside the housing member 18. The detection target 430 is positioned radially outward from the housing member and the detection target 30 according to the first embodiment. The rotation position detection unit 432 is mounted on the bicycle frame 3 so that it faces the detection target 430 in the axial direction D2.

[0131] In the case of the bicycle shift control device 512, it is possible to obtain essentially the same advantageous effects as those of the bicycle shift control device 12 according to the first embodiment.

[0132] The arrangement of the detection target and the rotary position detection unit is not limited to the embodiments mentioned above. For example, the detection target can be provided on an axial side of the housing member 18, if required and / or desired. In such an embodiment, the rotary position detection unit can, for example, be mounted on the bicycle frame 3.

[0133] It will be clear to those skilled in the field of bicycles from the present disclosure that the embodiments mentioned above can be combined, at least in part. Furthermore, while the bicycle shift control device according to each of the embodiments mentioned above is / is configured to control the rear derailleur 9, the configurations of the bicycle shift control device can also be applied in the case of a control device configured to control the front derailleur 8, if required and / or desired.

[0134] In the present application, the term "comprise" and its derivatives, as used herein, are intended as open terms that specify the presence of the aforementioned features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unnamed features, elements, components, groups, integers, and / or steps. The foregoing also applies to words with a similar meaning, such as "include," "exhibit," and their derivatives.

[0135] The terms "part", "section", "link" or "element" can also have the dual meaning of a single part or a multitude of parts when used in the singular.

[0136] The term "designed," as used here to describe a component, section, or part of a device, includes hardware and / or software that is created and / or programmed to perform the desired function. The desired function may be performed by hardware, software, or a combination of both.

[0137] The ordinal numbers such as "first" and "second," as mentioned in the present application, are merely identifiers and have no further meaning, such as indicating a specific order or similar. Moreover, the term "first element," for example, does not in itself imply the presence of a "second element," and the term "second element" does not in itself imply the presence of a "first element."

[0138] Finally, terms of a magnitude such as "essentially", "approximately" and "approximately", as used here, mean a proportionate degree of deviation from the modified term, so that the end result is not substantially changed.

[0139] It is evident that numerous modifications and variations of the present invention are possible in light of the teaching described above. It should therefore be noted that, within the scope of the appended claims, the invention can be applied in a manner other than specifically described here.

Claims

[1] Bicycle shift control apparatus (312, 412, 512) comprising: a detection target (330, 430), rotatable together with a gear ring arrangement (5); a rotary position detection unit (332, 432) configured to detect a rotary position of the gear ring assembly (5) and including an image sensor (436) configured to capture a target image of the detection target (330, 430); and a derailleur controller (42, 442) configured to calculate a rotational position of the sprocket assembly (5) based on the target image captured by the image sensor (436) and configured to control a derailleur (9) based on the rotational position calculated by the derailleur controller (42, 442); wherein The derailleur controller (42, 442) is configured to store an actuation time (TU1-10, TD2-11) during which the derailleur (9) shifts a bicycle chain (C) between a sprocket and an additional sprocket of the sprocket assembly (5), wherein the additional sprocket is adjacent to the sprocket without a further sprocket, in a memory (46) of the derailleur controller (42, 442) and to calculate a time or timing at which the derailleur (9) begins to shift the bicycle chain (C) based on the time stored in the derailleur controller (42, 442). Actuation time (TU1-10, TD2-11) and a current rotation position detected by the rotation position detection unit (332, 432) when an actuation signal to actuate the derailleur (9) is input to the derailleur controller (42, 442) by an actuating device (7). [2] Bicycle shift control device (312, 412, 512) according to claim 1, wherein the detection target (330, 430) includes a reference pattern which indicates an absolute rotational position of the gear ring assembly (5), the image sensor (436) is designed to capture a sample image of the reference pattern as the target image, the switching controller (42, 442) is designed to calculate the absolute rotational position of the gear ring assembly (5) based on the pattern image captured by the image sensor (436), and the derailleur controller (42, 442) is designed to control the derailleur (9) based on the absolute rotational position calculated by the derailleur controller (42, 442). [3] Bicycle shift control apparatus (12, 212) comprising: a detection target (30, 230), rotatable together with a gear ring arrangement (5); a rotation position detection unit (32) designed to be in contact with the detection target (30, 230) and / or to detect a rotation position of the detection target (30, 230) as the rotation position of the gear ring assembly (5); and a derailleur controller (42) configured to control a derailleur (9) based on the rotational position detected by the rotational position sensing unit (32); wherein the rotary position detection unit (32) includes a detection gear (34) and a sensor (36), and the sensor (36) includes a contact rotary position sensor. [4] Bicycle shift control device (12, 212, 312, 412, 512) according to one of claims 1 to 3, wherein the gear ring assembly (5) is designed to be rotatably supported by a housing element (18) rotatably designed with respect to a shaft element (16). [5] Bicycle shift control device (12, 212) according to claim 4, if dependent on claim 3, wherein the rotary position detection unit (32) and the detection target (30, 230) are provided outside the housing element (18). [6] Bicycle shift control apparatus (212, 312, 412) comprising: a rotary position detection unit (32, 332, 432), configured to detect a rotary position of a gear ring assembly (5), which is configured to be rotatably supported by a housing member (18) rotatably configured with respect to a shaft member (16), wherein the rotary position detection unit (32, 332, 432) is provided inside the housing member (18), and a derailleur controller (42, 442) configured to control a derailleur (9) based on the rotational position detected by the rotational position sensing unit (32, 332, 432); wherein the housing member (18) is a gear ring support body of a bicycle hub assembly (14), and the shaft member (16) is a hub shaft of the bicycle hub assembly (14); a cavity (260) is defined between the shaft member (16) and the housing member (18); the rotary position detection unit (32) is / will be provided in the cavity (260); and a detection target (230, 330, 430) is / will be provided in the cavity (260). [7] Bicycle shift control apparatus (212, 312, 412) according to claim 6, further comprising the bicycle hub assembly (14), including the shaft member (16) and the housing member (18), wherein the housing member (18) is configured to rotate together with the gear ring assembly (5), and is provided radially outwards by the shaft member (16), and wherein the rotation position detection unit (32, 332, 432) is provided between the shaft member (16) and the housing member (18). [8] Bicycle shift control device. (212, 312, 412) according to claim 7, further comprising: the detection target (230, 330, 430), together with the gear ring assembly (5) rotatable and provided inside the bicycle hub assembly (14), wherein the rotary position detection unit (32, 332, 432) is designed to detect a rotary position of the detection target (230, 330, 430) as the rotary position of the gear ring arrangement (5) without touching the detection target (230, 330, 430). [9] Bicycle shift control device (212, 312, 412) according to claim 8, further comprising: , a bicycle hub assembly (14), including the shaft member (16) and the housing member (18), wherein the housing member (18) is configured to rotate together with the gear ring assembly (5) and is provided radially outwards from the shaft member (16), and wherein the detection target (230, 330, 430) is mounted on an inner periphery of the housing element (18), and the rotary position detection unit (32, 332, 432) is mounted on an outer periphery of the shaft element (16) to be opposite the detection target (230, 330, 430). [10] Bicycle shift control device (212, 312, 412) according to claim 6 or 7, further comprising: a detection target (230, 330, 430), rotatable together with the gear ring assembly (5) and provided inside the housing member (18), wherein the rotary position detection unit (32, 332, 432) is designed to be in contact with the detection target (230, 330, 430) and / or to detect a rotary position of the detection target (230, 330, 430) as the rotary position of the gear ring assembly (5). [11] Bicycle shift control device (12, 212) according to one of claims 3, 4, when dependent on claims 3, 5 and 10, wherein the detection target (30, 230) comprises an output gear rotatable together with the gear ring assembly (5), and the rotary position detection unit (32) comprises a detection gear (34) designed to mesh with the output gear, and including a sensor (36) which is designed to detect the rotational position of the detection target (30, 230) based on a rotational position of the detection gear (34). [12] Bicycle shift control device (12, 212, 312, 412, 512) according to one of claims 3, 4 if dependent on claim 3, and 5 to 11, wherein the derailleur controller (42, 442) is designed to store an actuation time (TU1-10, TD2-11) during which the derailleur (9) shifts a bicycle chain (C) between a sprocket and an additional sprocket of the sprocket assembly (5), wherein the additional sprocket is adjacent to the sprocket without a further sprocket, and the derailleur control (42, 442) is designed to calculate a time or timing at which the derailleur (9) begins to shift the bicycle chain (C) based on the actuation time (TU1-10, TD2-11) stored in the switchgear controller (42, 442) and a current rotation position detected by the rotation position detection unit (32, 332, 432) when an actuation signal to actuate the derailleur (9) is input to the derailleur control unit (42, 442) by an actuation device (7). [13] Bicycle shift control apparatus (12, 212, 312, 412, 512) according to claim 1, 2 or 12, wherein the shift control unit (42, 442) is configured to control the derailleur (9) to begin shifting the bicycle chain (C) at the time calculated or timed by the shift control unit (42, 442).

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