Bicycle gear shifting device

Abstract

A gear shifting apparatus includes a controller configured to be operatively coupled to a first switch to receive a first shift signal and to be operatively coupled to a second switch to receive a second shift signal. The controller, in response to receiving the first shift signal or the second shift signal, controls at least one of a first gear shifting device and a second gear shifting device of the bicycle derailleur to change a gear ratio of the bicycle derailleur to a next higher or lower gear ratio according to the at least one synchronous shift path. The controller controls only one of the first gear shift device and the second gear shift device to change a gear ratio of the bicycle transmission in response to receiving a third shift signal different from the first shift signal from the first switch or in response to receiving a fourth shift signal different from the second shift signal from the second switch.

Description

Technical Field

[0001] This invention relates to a bicycle gear shifting (gear transmission) device. Background Technology

[0002] Gear shifting devices for bicycles are known. Bicycles, especially racing bicycles, traditionally include a first gear shifter, such as a rear derailleur, and a second gear shifter, such as a front derailleur, for switching gears in the derailleur system. Derailleurs are often replaced by gearboxes, particularly located at the wheel hub and / or crankset. In recent years, electrically actuated rear derailleurs, front derailleurs, in-wheel derailleurs with internal gear engagement, and crank derailleurs with internal gear engagement have also been used. Such electrically actuated gear shifting devices are typically controlled by a controller.

[0003] Also known is the provision of a function sometimes referred to in the art as synchronized shifting. In synchronized shifting, the controller controls both the first and second gear shifting devices such that when the user commands an upshift or downshift, the controller determines which of the first and second gear shifting devices, or both, needs to be actuated, so that the bicycle derailleur as a whole performs the desired upshift or downshift. Typically, the controller stores one or more synchronized shifting paths in memory that specify which of the first and second gear shifting devices should be actuated to switch from one gear ratio to the next (or previous) gear ratio.

[0004] Efforts are being made to make gear shifting devices user-friendly and efficient. However, it has been found that both user-friendliness and efficiency can still be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a highly user-friendly and / or efficient bicycle gear shifting device. It will be understood that this bicycle gear shifting device can be used in various vehicles, such as bicycles, other human-powered vehicles, or light electric vehicles, such as electric vehicles equipped with a 5 kW or lower electric propulsion motor.

[0006] A bicycle gear shifting device includes a controller configured to be operatively coupled to a first electrical switch and a second electrical switch. Both the first and second switches are electrical components that can selectively disconnect or connect conductive paths in a circuit. The controller is configured to control the first and second gear shifting mechanisms of the bicycle derailleur in response to shift signals received from the first and second switches. The aim is to enable a user to perform more than two different shifting operations using the first and second switches. Therefore, the bicycle control assembly does not appear cluttered with numerous switches, while still providing a rich set of functions.

[0007] Optionally, the minimum gear ratio step size achievable using the first gear shifting device is smaller than the minimum gear ratio step size achievable using the second gear shifting device. The first gear shifting device may be, for example, an electrically actuated rear derailleur, and the second gear shifting device may be an electrically actuated internal hub derailleur or an electrically actuated internal crank derailleur. Alternatively, the second gear shifting device may be, for example, an electrically actuated rear derailleur, and the first gear shifting device may be an electrically actuated internal hub derailleur or an electrically actuated internal crank derailleur. Alternatively, the first gear shifting device may be, for example, an electrically actuated rear derailleur, and the second gear shifting device may be an electrically actuated front derailleur. Alternatively, the second gear shifting device may be, for example, an electrically actuated rear derailleur, and the first gear shifting device may be an electrically actuated front derailleur.

[0008] Optionally, the first gear shifting device and the second gear shifting device are included in an electrically actuated internal in-wheel transmission. Optionally, the first gear shifting device and the second gear shifting device are included in an electrically actuated internal crank transmission. Optionally, the first gear shifting device is included in an electrically actuated internal in-wheel transmission, and the second gear shifting device is included in an electrically actuated internal crank transmission. Optionally, the first gear shifting device is included in an electrically actuated internal crank transmission, and the second gear shifting device is included in an electrically actuated internal in-wheel transmission.

[0009] The first switch can be triggered by the user in a first manner to provide a first shift signal. For example, the first shift signal may represent a single closing and / or opening (single click) of the first switch. The second switch can be triggered by the user in a second manner to provide a second shift signal. For example, the second shift signal may represent a single closing and / or opening (single click) of the second switch. The first switch can be triggered by the user in a second manner different from the first manner to provide a third shift signal different from the first shift signal. For example, the third shift signal may represent a double closing and / or opening (double click) of the first switch. The second switch can be triggered by the user in a second manner to provide a fourth shift signal different from the second shift signal. For example, the fourth shift signal may represent a double closing and / or opening (double click) of the second switch. Alternatively, the third shift signal may, for example, represent holding the first switch for a longer duration (long press) than the first manner (short press). Alternatively, the fourth shift signal may, for example, represent holding the second switch for a longer duration than the first manner (long press).

[0010] The method for controlling the first and second gear shifting mechanisms of a bicycle derailleur may include one or more modes. These modes can be selected by the user.

[0011] The first mode includes: in response to receiving a first shift signal, controlling at least one of a first gear shifting device and a second gear shifting device to change the gear ratio of the bicycle derailleur to the next higher gear ratio according to at least one synchronous shift path, such as a synchronous upshift path. This response to the first shift signal is also referred to herein as a first gear shifting action. The first mode includes: in response to receiving a second shift signal, controlling at least one of the first gear shifting device and the second gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur to the next lower gear ratio according to at least one synchronous shift path, such as a synchronous downshift path. This response to the second shift signal is also referred to herein as a second gear shifting action. Thus, user actuation of the first switch via the first method upshifts according to the synchronous shift path instruction, while user actuation of the second switch via the first method downshifts according to the synchronous shift path instruction. The synchronous downshift path may be the same as the synchronous upshift path (but in the opposite direction). Alternatively, the synchronous upshift path may be different from the synchronous downshift path. The first mode includes, in response to receiving a third shift signal, controlling only one of the first gear shifting device and the second gear shifting device. This response to the third shift signal is also referred to herein as the third gear shift action. Additionally or alternatively, the first mode includes controlling only one of the first and second gear shift devices in response to receiving a fourth shift signal. This response to the fourth shift signal is also referred to herein as the fourth gear shift action. Therefore, the user can forgo shifting according to the synchronized shift path and specifically instruct either the first or second gear shift device to shift gears. To avoid cluttering the bicycle control components with numerous switches, the user can use the same first and second switches to upshift (using the first shift signal) or downshift (using the second shift signal) according to the synchronized shift path, or control only one of the first or second gear shift devices to shift gears (using the third or fourth shift signal).

[0012] Using a single first switch to generate the first and third shift signals, and a single second switch to generate the second and fourth shift signals, the controller may need to wait a predetermined time to determine whether the user action is a single closure and / or opening (single click) or a double closure and / or opening (double click). The user action is determined to be a single click rather than a double click only if the second closure and / or opening does not occur within a predetermined time after the first closure and / or opening. Similarly, this may require the controller to wait a predetermined time to determine whether the user action is a long press or a short press. The user action is determined to be a short press rather than a long press only if the switch is released before the predetermined time after the first closure and / or opening expires.

[0013] According to this approach, a faster response from the controller to user interaction with the first and / or second switches can be achieved. Although this document describes the first switch, the following applies equally to both the first and / or second switches.

[0014] The first switch is an electrical component that can selectively disconnect or connect a conductive path in a circuit. The first switch can be actuated and released. Actuation can be, for example, pressing a button, moving a lever, rotating a knob, etc. In this text, the switch is referred to as being in the "on" state when actuated and in the "off" state when released. Obviously, whether the "on" state is the switch's conducting state and the "off" state is the switch's open-circuit state, or whether the "on" state is the switch's open-circuit state and the "off" state is the switch's conducting state, depends on the controller and other circuits connecting the switch to the controller. The change from the "off" state to the "on" state is also referred to as the actuation edge in this text, and the change from the "on" state to the "off" state is also referred to as the release edge in this text.

[0015] A first method to achieve faster response can be as follows: Upon actuation of the first switch, the controller receives an actuation edge. In response to receiving the first actuation edge, the controller receives a release edge when the first switch is released. The controller then determines the elapsed time from receiving the actuation edge to the release edge associated with the same switch actuation. Furthermore, the controller can, for example, start a timer upon receiving the actuation edge and stop the timer upon receiving the release edge. Next, the controller compares the determined elapsed time with a predetermined threshold. If the determined elapsed time is less than the predetermined threshold, the controller determines that the switch actuation represents a short actuation, identifies the signal as a first shift signal, and begins controlling the first gear shift operation as specified upon receiving the first shift signal. If the determined elapsed time is greater than the predetermined threshold, the controller determines that the switch actuation represents a long actuation, identifies the signal as a third shift signal, and begins controlling the third gear shift operation as specified upon receiving the third shift signal. Alternatively, or even faster, if the controller determines that the time elapsed since receiving the actuation edge is equal to a predetermined threshold, but has not yet received the release edge, the controller determines that the switch actuation represents a long actuation, determines that the signal is the third shift signal, and in response to receiving the third shift signal, begins to control the third gear shifting action as specified.

[0016] A second method for achieving faster response is as follows. Upon receiving a release edge within a predetermined time frame after receiving the actuation edge, the controller can temporarily determine that the signal is a first shift signal and, in response to receiving the first shift signal, begin controlling the first gear shift action as specified. As mentioned above, at this time, it has not yet been determined whether the signal is indeed the first signal. The release edge can mark a single click, but it can also be part of the first click of a double click. By initiating control of the first gear shift action in response to receiving the temporarily determined first shift signal, the user actuation of the first switch can be responded to quickly. After a period of time, the controller can determine that a second actuation edge has been detected within a predetermined time frame after either the first actuation edge or the first release edge. Then, the controller determines that the temporary determination that the signal is the first shift signal is incorrect and changes the determination to the third shift signal. In response, the controller can abort the first gear shift action initiated in response to the temporary first shift signal and instead, in response to receiving the third shift signal, begin controlling the third gear shift action as specified.

[0017] A third method for achieving faster response is as follows. Upon receiving an actuation edge, the controller can temporarily determine that the signal is a first shift signal and, in response to receiving the first shift signal, begin controlling the first gear shift action as specified. As mentioned above, at this time, it has not yet been determined whether the first signal is indeed the first signal. The actuation edge can be part of a single click, but it can also be part of the first click of a double click. The actuation edge can be part of a short actuation, but it can also be part of a long actuation unless a release edge has been received. By initiating control of the first gear shift action in response to receiving the temporarily determined first shift signal, the user actuation of the first switch can be responded to quickly. After a period of time, the controller can determine that a second actuation edge was detected within a predetermined double-click time frame after the first actuation edge or release edge, or that no release edge was received within the short actuation threshold. Then, the controller determines that the temporary determination that the signal is the first shift signal is incorrect and changes the determination to the signal as the third shift signal. In response, the controller can abort the first gear shift that has already begun in response to the temporary first shift signal, and instead start controlling the third gear shift in accordance with the specified procedure in response to receiving the third shift signal.

[0018] It has been found that, particularly when the first gear shift is associated with an electrically actuated rear derailleur or an electrically actuated front derailleur, a temporary determination result can be quickly determined to be false, thereby halting the change in gear ratio of the bicycle derailleur with that derailleur and instead executing the third gear shift. However, gear shifting mechanisms in electrically actuated internal hub or crankset derailleurs may also allow the halting of gear ratio changes. It will be understood that the controller can determine not to halt the first gear shift. For example, if the first gear shift has already progressed and cannot be halted in a way that provides an acceptable riding experience for the user, the controller can decide not to halt the first gear shift. Similarly, when the first gear shift has not been halted, the third gear shift can be executed in response to a determination that the altered signal is a third shift signal.

[0019] According to one aspect, a bicycle gear shifting device is provided, the device including a controller configured to be operatively coupled to a first switch to receive a first shift signal, and operatively coupled to a second switch to receive a second shift signal. The controller is configured to, in response to receiving the first shift signal, control at least one of a first gear shifting device and a second gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur to the next higher gear ratio according to at least one synchronous shift path, such as a synchronous upshift path. The controller is also configured to, in response to receiving the second shift signal, control at least one of the first gear shifting device and the second gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur to the next lower gear ratio according to at least one synchronous shift path, such as a synchronous downshift path. Thus, user actuation of the first switch upshifts according to the synchronous shift path instruction, and user actuation of the second switch downshifts according to the synchronous shift path instruction. The synchronous downshift path may be the same as (but in the opposite direction of) the synchronous upshift path. Alternatively, the synchronous upshift path may be different from the synchronous downshift path.

[0020] The controller is also configured to control only one of the first and second gear shifting devices to change the gear ratio of the bicycle derailleur when a third shift signal different from the first shift signal is received from the first switch. Additionally or alternatively, the controller is also configured to control only one of the first and second gear shifting devices to change the gear ratio of the bicycle derailleur when a fourth shift signal different from the second shift signal is received from the second switch. Therefore, the user can forgo shifting according to a synchronized shift path and directly instruct either the first or second gear shifting device to shift gears. To avoid cluttering the bicycle control components with numerous inputs, the user can use the same first and second switches to upshift (using the first shift signal) or downshift (using the second shift signal) according to a synchronized shift path, or control only one of the first and second gear shifting devices to shift gears (using the third or fourth shift signal).

[0021] Optionally, the first shift signal represents a first switching mode of the first switch, such as a single switch. The first switch can be implemented, for example, as a first button, lever, rotary switch, etc. The first user switch interaction can be, for example, pressing the first button, such as a single click and / or a short press.

[0022] Optionally, the second shift signal represents a first switching mode of the second switch, such as a single switch. The second switch can be implemented, for example, as a first button, lever, rotary switch, etc. The first user switch interaction can be, for example, pressing the second button, such as a single click and / or a short press.

[0023] Optionally, the third shift signal represents a second shift mode, different from the first shift mode of the first switch. The second shift mode could be, for example, a double shift of the first switch, or the first switch being held for a longer period than the first shift mode.

[0024] Optionally, the fourth shift signal represents a second shift mode, which differs from the first shift mode of the second switch. The second shift mode could be, for example, a double shift of the first switch, or the first switch being held for a longer period than the first shift mode.

[0025] Optionally, the second mode represents holding the switch for a longer period than the first mode. Optionally, the controller is configured to: determine the signal as a first shift signal if the time between the actuation and release of the first switch is less than a predetermined time interval; and determine the signal as a third shift signal if the first switch has not been released after the predetermined time interval. Optionally, the controller is configured to: determine the signal as a second shift signal if the time between the actuation and release of the second switch is less than a predetermined time interval; and determine the signal as a fourth shift signal if the second switch has not been released after the predetermined time interval.

[0026] Optionally, the minimum gear ratio step size achievable using the first gear shifting device is smaller than the minimum gear ratio step size achievable using the second gear shifting device. The first gear shifting device may be, for example, an electrically actuated rear derailleur, and the second gear shifting device may be an electrically actuated internal hub derailleur or an electrically actuated internal crank derailleur. Alternatively, the first gear shifting device may be, for example, an electrically actuated rear derailleur, and the second gear shifting device may be an electrically actuated front derailleur.

[0027] Optionally, the first gear shifting device and the second gear shifting device are included in an electrically actuated internal in-wheel transmission. Optionally, the first gear shifting device and the second gear shifting device are included in an electrically actuated internal crank transmission. Optionally, the first gear shifting device is included in an electrically actuated internal in-wheel transmission, and the second gear shifting device is included in an electrically actuated internal crank transmission. Optionally, the first gear shifting device is included in an electrically actuated internal crank transmission, and the second gear shifting device is included in an electrically actuated internal in-wheel transmission.

[0028] Optionally, the controller is configured to control only the second gear shifter to increase the gear ratio of the bicycle derailleur only in response to receiving a third (or fourth) shift signal. Alternatively or additionally, the controller is configured to control only the second gear shifter to decrease the gear ratio of the bicycle derailleur only in response to receiving a fourth (or third) shift signal. In particular, it may be beneficial to specifically instruct only the second gear shifter to shift when the minimum gear ratio step achievable using the first gear shifter is smaller than the minimum gear ratio step achievable using the second gear shifter. Especially when the second gear shifter offers only two selectable gear ratios, the controller can be configured to control only the second gear shifter to change its gear ratio in response to receiving a third and / or fourth shift signal. Instructing the second gear shifter to downshift can reduce the overall gear ratio by more than one gear, thereby allowing a sudden increase in torque (emergency braking). Instructing the second gear shifter to upshift can increase the overall gear ratio by more than one gear, thereby allowing a sudden increase in speed.

[0029] Optionally, the controller is configured to, in response to receiving a third (or fourth) shift signal, only control the second gear shifter to shift to the next higher gear ratio of the second gear shifter, and, if the gear ratio of the second gear shifter has reached its maximum value, in response to receiving a third shift signal, only control the first gear shifter to shift to a gear ratio higher than the next higher gear ratio of the first gear shifter. Therefore, the second gear shifter can preferably be instructed to perform more than one gear shift, but if the second gear shifter cannot perform this, the first gear shifter will perform it. Thus, even if the user forgets that more than one gear shift cannot be performed using the second gear shifter, a situation where shifting is completely impossible will not occur; instead, although the first gear shifter performs the shift, there will still be more than one gear shift.

[0030] Optionally, the controller is configured to, in response to receiving a fourth (or third) shift signal, only control the second gear shifter to shift to the next lower gear ratio of the second gear shifter, and, if the gear ratio of the second gear shifter has reached its minimum value, in response to receiving a fourth shift signal, only control the first gear shifter to shift to a gear ratio lower than the next lower gear ratio of the first gear shifter.

[0031] The second mode includes: in response to receiving a first shift signal, controlling only the first gear shifter to change the gear ratio of the bicycle derailleur to the next higher gear ratio. The second mode includes: in response to receiving a second shift signal, controlling only the first gear shifter to change the gear ratio of the bicycle derailleur to the next lower gear ratio. The second mode includes: in response to receiving a third (or fourth) shift signal, controlling only the second gear shifter to change the gear ratio of the bicycle derailleur to a higher gear ratio. The second mode includes: in response to receiving a fourth (or third) shift signal, controlling only the second gear shifter to change the gear ratio of the bicycle derailleur to a lower gear ratio. Therefore, the user can use the first switch and the second switch to control the first gear shifter and the second gear shifter independently. To avoid cluttering the bicycle control components with numerous switches, the user can use the same first and second switches to instruct the first gear shifter to upshift (using the first shift signal) or downshift (using the second shift signal), and to instruct the second gear shifter to upshift (using the third (or fourth) shift signal) or downshift (using the fourth (or third) shift signal).

[0032] It will be understood that any one or more of the above aspects, features, and options can be combined. It will be understood that any option described for one aspect can be equally applied to any other aspect. It will also be clear that all aspects, features, and options described for the clutch system apply equally to the method, and vice versa. Attached Figure Description

[0033] The present invention will be further described based on exemplary embodiments shown in the accompanying drawings. Exemplary embodiments are given by way of non-limiting illustration. It should be noted that the drawings are merely illustrative representations of embodiments of the present invention given by way of non-limiting example.

[0034] In the attached diagram:

[0035] Figure 1 An example of a bicycle gear shifting system is shown.

[0036] Figure 2A , Figure 2B and Figure 2C One control method is illustrated schematically.

[0037] Figure 3A and Figure 3B One control method is illustrated schematically.

[0038] Figure 4A and Figure 4B One control method is illustrated schematically.

[0039] Figure 5A and Figure 5B One control method is illustrated schematically.

[0040] Figure 6 An example of a bicycle gear shifting system is shown.

[0041] Figure 7 A bicycle is shown. Detailed Implementation

[0042] Figure 1 An example of a bicycle gear shifting system (gear system) 100 is shown. The bicycle gear shifting system 100 includes a bicycle gear shifting device (gear shifting device) 1. It should be understood that the bicycle gear shifting system 100 and the bicycle gear shifting device 1 can be used in various vehicles, such as bicycles or other human-powered vehicles or light electric vehicles, such as electric vehicles with a 5kW or lower electric propulsion motor.

[0043] In this example, the bicycle gear shifting device 1 includes a controller 2 configured to be operatively coupled to a first electrical switch 4 and a second electrical switch 6. Switches 4 and 6 may be coupled to the controller 2, for example, via wired or wireless means. Switches 4 and 6 may, for example, have associated transmitter(s) 8 that wirelessly communicate with a receiver 10 of the controller 2.

[0044] The first switch 4 and the second switch 6 are electrical components that selectively disconnect or connect conductive paths in a circuit. Switches 4 and 6 can be actuated and released. Actuation can be, for example, pressing down a button, moving a lever, rotating a knob, or similar methods. In this document, switches 4 and 6 are referred to as being in the "ON" state when actuated and in the "OFF" state when released. Obviously, whether the "ON" state is the conducting state of the switch and the "OFF" state is the breaking state of the switch, or whether the "ON" state is the breaking state of the switch and the "OFF" state is the conducting state of the switch, depends on the controller 2 and the additional circuitry connecting switches 4 and 6 to the controller 2. The transition from the "OFF" state to the "ON" state is also referred to herein as the actuation edge AF, and the transition from the "ON" state to the "OFF" state is also referred to herein as the release edge RF.

[0045] The controller 2 is configured to control the first gear shifting device 102 and / or the second gear shifting device 106 of the bicycle gearbox 104 in response to a shift signal received from the first switch 4 and / or a shift signal received from the second switch 6.

[0046] In this example, the first gear shifter 102 is an electrically actuated rear derailleur, and the second gear shifter 106 is an electrically actuated in-wheel derailleur or an electrically actuated internal crankshaft derailleur. Alternatively, the first gear shifter 102 may be, for example, an electrically actuated rear derailleur, and the second gear shifter 106 may be an electrically actuated front derailleur. Alternatively, both the first gear shifter 102 and the second gear shifter 106 may be included in an electrically actuated in-wheel derailleur. Alternatively, both the first gear shifter 102 and the second gear shifter 106 may be included in an electrically actuated internal crankshaft derailleur. Alternatively, the first gear shifter 102 may be included in an electrically actuated in-wheel derailleur, and the second gear shifter 106 may be included in an electrically actuated internal crankshaft derailleur. Alternatively, the first gear shifting device 102 can be included in an electrically actuated internal crank gearbox, and the second gear shifting device 106 can be included in an electrically actuated internal hub gearbox. In this example, the minimum gear ratio step size achievable by the first gear shifting device 102 is smaller than the minimum gear ratio step size achievable by the second gear shifting device 106. The minimum gear ratio step size achievable by the second gear shifting device 106 can, for example, be about 2 or 3 times larger than the minimum gear ratio step size achievable by the first gear shifting device 102.

[0047] The user can trigger the first switch 4 in a first manner to provide a first shift signal S1. For example, the first shift signal can represent a single closing and / or opening (click) of the first switch. The user can trigger the second switch 6 in a first manner to provide a second shift signal S2. For example, the second shift signal can represent a single closing and / or opening (click) of the second switch.

[0048] The user can trigger the first switch 4 in a second manner, different from the first manner, to provide a third shift signal S3, different from the first shift signal S1. For example, the third shift signal S3 may represent two closing and / or opening of the first switch (double-click). The user can trigger the second switch 6 in the second manner to provide a fourth shift signal S4, different from the second shift signal S2. For example, the fourth shift signal S4 may represent two closing and / or opening of the second switch (double-click). Alternatively, the third shift signal S3 may, for example, indicate that the first switch 4 is held for a longer time than in the first manner (short press) (long press). Alternatively, the fourth shift signal S4 may, for example, indicate that the second switch 6 is held for a longer time than in the first manner (long press).

[0049] In this example, controller 2, in response to receiving a first shift signal S1, controls at least one of the first shift device 102 and the second shift device 106 to change the gear ratio of the bicycle derailleur 104 to the next higher gear ratio according to at least one synchronous shift path, such as a synchronous upshift path. This response to the first shift signal S1 is also referred to herein as the first gear shift action GCA1. Here, controller 2, in response to receiving a second shift signal S2, controls at least one of the first shift device 102 and the second shift device 106 to change the gear ratio of the bicycle derailleur 104 to the next lower gear ratio according to at least one synchronous shift path, such as a synchronous downshift path. This response to the second shift signal S2 is also referred to herein as the second gear shift action GCA2. Therefore, user actuation of the first switch 4 in a first manner can command an upshift according to the synchronous shift path, while user actuation of the second switch 6 in a first manner can command a downshift according to the synchronous shift path. The synchronous downshift path can be the same as (but reversed) the synchronous upshift path. Alternatively, the synchronous upshift path can be different from the synchronous downshift path.

[0050] In this example, controller 2 controls only one of the first gear shifter 102 and the second gear shifter 106 in response to receiving the third shift signal S3. This response to the second shift signal S3 is also referred to herein as the third gear shift action GCA3. Alternatively or additionally, controller 2 controls only one of the first gear shifter 102 and the second gear shifter 106 in response to receiving the fourth shift signal S4. This response to the fourth shift signal S4 is also referred to herein as the fourth gear shift action GCA4. Therefore, the user can forgo shifting according to the synchronized transmission path and instead directly command either the first gear shifter 102 or the second gear shifter 106 to shift. In order to avoid assembling many switches in the bicycle control components, the user can use the same first switch 4 and second switch 6 to command upshifting (by means of the first shift signal S1) or downshifting (by means of the second shift signal S2) according to the synchronous shift path, and command only one of the first gear shifting device 102 and the second gear shifting device 106 to shift (by means of the third shift signal S3 or the fourth shift signal S4).

[0051] In the example, controller 2, in response to receiving a third shift signal S3, controls only the second gear shifter 106 to shift the gear ratio associated with the second gear shifter 106 to the next higher gear ratio; and controller 2, in response to receiving a fourth shift signal S4, controls only the second gear shifter 106 to shift the gear ratio associated with the second gear shifter 106 to the next lower gear ratio. Therefore, actuating the first switch 4 and the second switch 6 in the second manner can cause control only on the second gear shifter 106.

[0052] Figure 2A , Figure 2B and Figure 2C The diagram schematically illustrates a first manner in which controller 2 responds to first switch 4 based on whether the switch is actuated for a short time or a long time. When first switch 4 is actuated, controller 2 receives an actuation edge AF. In response to receiving actuation edge AF, controller 2 receives a release edge RF when first switch 4 is released. Controller 2 then determines the elapsed time between receiving actuation edge AF and the release edge RF associated with the same switch actuation. For this purpose, the controller may, for example, start a timer 8 upon receiving actuation edge AF and stop timer 8 upon receiving release edge RF. Next, controller 2 compares the determined elapsed time with a predetermined threshold TL. In this example, threshold TL represents the shortest duration associated with a long-term actuation of switch 4. Threshold TL may, for example, be in the range of 0.3–7 seconds. However, other values ​​may also be used. It should be understood that the value of threshold TL may be selected by the user, for example, through the user interface of controller 2 or through a wireless communication device communicating with controller 2 (e.g., through an application), such as a smartphone. Figure 2A In the example, the controller determines that the elapsed time is less than a predetermined threshold TL, and accordingly determines that the switch actuation represents a short actuation, and determines that the signal is the first shift signal S1. In response to the first shift signal S1, the controller 2, as specified by receiving the first shift signal, initiates the first gear shifting action GCA1. Figure 2B In the process, controller 2 determines that the elapsed time is greater than a predetermined threshold TL, and accordingly determines that the switch actuation represents a long actuation, and determines that the signal is the third shift signal S3. In response to the third shift signal S1, controller 2 initiates the third gear shifting operation GCA3 as specified by receiving the third shift signal. Figure 2C It shows Figure 2B Alternatives to the actions performed in [the context]. Figure 2C In this process, controller 2 determines that the elapsed time since receiving the drive edge AF is equal to a predetermined threshold TL, but the release edge RF has not yet been received. Based on this, controller 2 determines that the switch actuation is a long actuation, and determines that the signal is the third shift signal S3, and starts the control of the third gear shifting action GCA3 as specified in the receipt of the third shift signal S3.

[0053] Figure 3A and Figure 3B The diagram schematically illustrates a second manner in which controller 2 responds to the first switch 4 based on whether the switch is actuated once or more. Upon receiving the first actuation edge AF1, and then receiving the release edge RF1 associated with the first actuation of switch 4, controller 2 temporarily determines the signal as a first shift signal S1', and begins controlling the first gear shifting action GCA1 as specified in response to receiving the temporary first shift signal S1'. It will be understood that it is not yet certain whether the signal is indeed the first signal S1. The release edge RF1 can indicate a single click, but it can also be part of the first click in a double click. By initiating control of the first gear shifting action GCA1 in response to receiving the temporarily determined first shift signal S1', user actuation of the first switch 4 can be responded to quickly. Figure 3A In the example, there is no subsequent second actuation of the switch. Therefore, the result of the temporary first shift signal S1' is the first shift signal S1.

[0054] exist Figure 3BIn the example, there is a second actuation of switch 4. Therefore, controller 2 determines that the second actuation edge AF2 is detected within a predetermined time frame TD of the double-click following the first actuation edge AF1 or the first release edge RF1. The time frame TD can be, for example, within an interval of 0.2-3 seconds. However, other values ​​may also be used. It should be understood that the value of the time frame TD can be selected by the user, for example, through the user interface of controller 2 or through a wireless communication device communicating with controller 2 (e.g., through an application), such as a smartphone. In response to receiving the second actuation edge AF2, controller 2 determines that the signal is a temporary false determination of the first shift signal S1' and changes the determination to the signal as a third shift signal S3. In response, controller 2 can selectively abort the first gear shifting action GCA1 initiated in response to the temporary first shift signal S1'. Controller 2 may start controlling the third gear shifting action GCA3 as specified by receiving the third shift signal S3.

[0055] Figure 4A and Figure 4B The diagram schematically illustrates a second mode in which controller 2 responds to the first switch 4 depending on whether the switch is actuated once or more. Upon receiving an actuation edge AF1 associated with the first actuation of switch 4, controller 2 temporarily determines that signal as a first shift signal S1', and initiates the first gear shifting action GCA1 as specified in response to receiving the temporary first shift signal S1'. It will be understood that at this point it is not yet certain whether the signal is indeed the first signal S1. Figure 4A In the example, there is no subsequent second actuation of the switch. Therefore, the temporary first shift signal S1' results in the first shift signal S1. Figure 4B In the example, there is a second actuation of switch 4. Therefore, controller 2 determines that the second actuation edge AF2 is detected within a predetermined time frame TD of the double-click following the first actuation edge AF1 or the first release edge RF1. In response to receiving the second actuation edge AF2, controller 2 determines that the signal is a temporary false determination of the first shift signal S1' and changes the determination to the signal as a third shift signal S3. In response, controller 2 can selectively abort the first gear shifting action GCA1 initiated in response to the temporary first shift signal S1'. Controller 2 may start controlling the third gear shifting action GCA3 as specified by receiving the third shift signal S3.

[0056] Figure 4A and Figure 4BThe diagram schematically illustrates a third mode in which controller 2 responds to the first switch 4 based on whether the switch is operated for a short or long time. Upon receiving an actuation edge AF associated with the actuation of switch 4, controller 2 temporarily identifies the signal as a first shift signal S1' and, as specified in response to receiving the temporary first shift signal S1', initiates the first gear shifting action GCA1. It will be understood that at this point it is still uncertain whether the signal is indeed the first signal S1, because it is unclear whether switch 4 is actuated for a long or short time. Figure 5A In the example, in response to receiving the release edge RF, controller 2 determines that the elapsed time is less than a predetermined threshold TL, and accordingly determines that the switch actuation indicates short actuation. Therefore, the temporary first shift signal S1' results in the first shift signal S1. Figure 5B In the example, when the elapsed time equals the threshold TL, controller 2 determines that a release edge RF has not yet been received. Based on this, controller 2 determines that the switch actuation indicates a long actuation. Therefore, controller 2 determines that the signal is a temporary false determination of the first shift signal S1' and changes the determination to the signal as a third shift signal S3. In response, controller 2 can selectively abort the first gear shifting action GCA1 initiated in response to the temporary first shift signal S1'. Controller 2 may also initiate the third gear shifting action GCA3 as specified by receiving the third shift signal S3. It will be understood that controller 2 can also determine that the switch actuation indicates a long actuation upon receiving the release edge RF, as... Figure 2B As shown.

[0057] It has been found that, especially when the first gear shift action GCA1 involves controlling an electrically actuated rear derailleur or an electrically actuated front derailleur, the temporary determination can be determined sufficiently quickly as a false one, thereby aborting the shifting of the bicycle derailleur's gear ratio via the derailleur and instead executing the third gear shift action GCA3. It is understood that the controller 2 can be configured to determine not to abort the first gear shift action GCA1. For example, if the first gear shift action GCA1 has progressed too far to be canceled while providing an acceptable riding experience for the user, the controller 2 can determine not to abort the first gear shift action GCA1. Similarly, when the first gear shift action GCA1 is not aborted, the third gear shift action GCA3 can be executed in response to the changed determination that the signal is the third shift signal S3.

[0058] although Figure 2A - Figure 5BThe first switch 4, the first shift signal S1, the first gear shift action GCA1, the third shift signal S3, and the third gear shift action GCA3 have been described. However, it should be understood that these descriptions also apply to the second switch 6, the second shift signal S2, the second gear shift action GCA2, the fourth shift signal S4, and the fourth gear shift action GCA4.

[0059] Back Figure 1 In this example, controller 2 is configured to control only the second gear shifter 106 to increase the gear ratio of the bicycle derailleur in response to receiving a third (or fourth) shift signal, and controller 2 is also configured to control only the second gear shifter 106 to decrease the gear ratio of the bicycle derailleur in response to receiving a fourth (or third) shift signal. Optionally, if the gear ratio of the second gear shifter 106 has reached its maximum value, then in response to receiving a third (or fourth) shift signal, the controller can control only the first gear shifter 102 to shift to the next higher gear ratio. Therefore, a gear shift of more than one level can be commanded, preferably executed by the second gear shifter, but if the second gear shifter cannot perform the shift, it will be executed by the first gear shifter. Therefore, if the user forgets that the second gear shifter cannot perform a gear shift of more than one level, they will not face a situation where they cannot shift gears at all, but will face a gear shift of more than one level, although it is executed by the first gear shifter. Similarly, if the gear ratio of the second gear shifter has reached its minimum value, then in response to receiving a fourth (or third) shift signal, the controller 2 can control the first gear shifter 102 to shift to the next lower gear ratio below the first gear shifter.

[0060] Figure 1 The bicycle gear shifting system 100 and / or bicycle gear shifting device 1 can be configured for use in different operating modes. In a second mode, the controller 2 can, in response to receiving a first shift signal S1, control only the first gear shifting device 102 to change the gear ratio of the bicycle derailleur 104 to the next higher gear ratio; and, in response to receiving a second shift signal S2, control only the first gear shifting device 102 to change the gear ratio of the bicycle derailleur 104 to the next lower gear ratio. In the second mode, the controller 2 can, in response to receiving a third (or fourth) shift signal, control only the second gear shifting device 106 to change the gear ratio of the bicycle derailleur to a higher gear ratio; and, in response to receiving a fourth (or third) shift signal, control only the second gear shifting device 106 to change the gear ratio of the bicycle derailleur 104 to a lower gear ratio. Therefore, the user can use the first switch 4 and the second switch 6 to independently control the first gear shifting device 102 and the second gear shifting device 106.

[0061] Figure 6 Examples of a bicycle gear shifting system 100 and a bicycle gear shifting device 1 are shown, similar to... Figure 1 The system and device shown are described. In this example, the system includes a first switch 4 and a second switch 6, as well as a third switch 4' and a fourth switch 6'. In this example, the first switch 4 and the second switch 6 are configured to be located on or near the right grip portion of the bicycle handlebars, and the third switch 4' and the fourth switch 6' are configured to be located on or near the left grip portion of the bicycle handlebars, and vice versa. The first switch 4 and the second switch 6 may be housed in a first housing. The third switch 4' and the fourth switch 6' may be housed in a second housing. A user may trigger the third switch 4' in a first manner to provide a fifth shift signal S1' similar to the first shift signal S1. A user may trigger the fourth switch 6' in a first manner to provide a sixth shift signal S2' similar to the second shift signal S2. A user may trigger the third switch 4' in a second manner to provide a seventh shift signal S3' similar to the third shift signal S3. A user may trigger the fourth switch 6' in a second manner to provide an eighth shift signal S4' similar to the fourth shift signal S4. Figure 1 The bicycle gear shifting system 100 and / or bicycle gear shifting device 1 can be configured to be used in different operating modes.

[0062] In the first mode, the third switch 4' and the fourth switch 6' perform the same functions as the first switch 4 and the second switch 6, for example... Figure 1 - Figure 5B As described above. Therefore, the user can freely control the system 100 with either their left or right hand.

[0063] In the second mode, the third switch 4' and the fourth switch 6' perform different functions than the first switch 4 and the second switch 6.

[0064] For example, the first shift signal controls a single-stage upshift according to the synchronous shift path; the second shift signal controls a single-stage downshift according to the synchronous shift path; the third shift signal controls only a single-stage upshift of the first gear shifting device; the fourth shift signal controls only a single-stage downshift of the first gear shifting device; the fifth shift signal controls two-stage (i.e., two gear ratio stages) upshifts according to the synchronous shift path; the sixth shift signal controls two-stage downshifts according to the synchronous shift path; the seventh shift signal controls only a single-stage upshift of the second gear shifting device; and / or, the eighth shift signal controls only a single-stage downshift of the second gear shifting device.

[0065] Figure 7A bicycle 1000 is shown. The bicycle 1000 includes a frame 1002 with a front fork 1005 and a rear fork 1007, and a front wheel 1011 and a rear wheel 1013 located in the front and rear forks, respectively. The bicycle 1000 also includes a crank 1017 and a front sprocket 1019. The bicycle 1000 includes a derailleur system 104. In this example, the derailleur system includes a hub derailleur 1022 as a second gear shifting device 106. The bicycle 1000 also includes multiple sprocket cassettes 1021, wherein a chain 1023 passes through the front sprocket 1019 and one of the sprocket cassettes 1021. The bicycle 1000 also includes a rear derailleur 1024 as a first gear shifting device 102. The bicycle includes handlebars 1003. In this example, a user interface (interface) 1025, including switches 4, 6, 4', 6', is mounted to the handlebars 1003.

[0066] Following the numbered embodiments, a concise description of some of the embodiments disclosed in the previous description is now provided.

[0067] Example 1. A bicycle gear shifting device, comprising:

[0068] A controller configured to be operatively connected to a first switch to receive a first shift signal, and operatively connected to a second switch to receive a second shift signal;

[0069] The controller is configured to:

[0070] In response to receiving a first shift signal, control at least one of the first gear shifting device and the second gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur to the next higher gear ratio according to at least one synchronized shift path; and

[0071] In response to receiving a second shift signal, control at least one of the first gear shifting device and the second gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur to the next lower gear ratio according to at least one synchronous shift path.

[0072] The controller is also configured to:

[0073] In response to receiving a third shift signal different from the first shift signal from the first switch or in response to receiving a fourth shift signal different from the second shift signal from the second switch, only one of the first gear shifting device and the second gear shifting device is controlled to change the gear ratio of the bicycle gearbox.

[0074] Example 2. The bicycle gear shifting device according to Example 1, wherein the first shift signal represents a first triggering mode of the first switch, such as a single shift; and wherein the second shift signal represents a first triggering mode of the second switch, such as a single shift.

[0075] Example 3. The bicycle gear shifting device according to Example 2, wherein the third signal represents a second triggering method of the first switch that is different from the first triggering method, such as double switching or long holding.

[0076] Example 4. The bicycle gear shifting device according to Example 2 or 3, wherein the fourth signal represents a second switching mode of the second switch that is different from the first switching mode, such as double switching or long hold.

[0077] Example 5. The bicycle gear shifting device according to Example 3 or 4, wherein the second mode represents a longer switch hold than the first mode.

[0078] Example 6. The bicycle gear shifting device according to Example 5, wherein the controller is configured to: determine the signal as a first shift signal if the time between the actuation and release of the first switch is less than a predetermined time interval; and determine the signal as a third shift signal if the first switch is not released after the predetermined time interval.

[0079] Example 7. The bicycle gear shifting device according to Example 5, wherein the controller is configured to: determine the signal as a second shift signal if the time between the actuation and release of the second switch is less than a predetermined time interval; and determine the signal as a fourth shift signal if the second switch has not been released after the predetermined time interval.

[0080] Example 8. The bicycle gear shifting device according to Example 3, wherein the first shift signal represents a first switching duration of the first switch, and the third shift signal represents a longer second switching duration of the first switch, the controller is configured to...

[0081] When the first switch is actuated, the signal is temporarily determined to be a first shift signal, and control begins on at least one of the first gear shifting device and the second gear shifting device associated with the first shift signal.

[0082] When it is determined that the actuation of the switch actually represents the second switching duration, the determination result is changed to the signal being the third shift signal. Control of at least one of the first and second gear shifting devices associated with the first shift signal is stopped, and control of only one of the first and second gear shifting devices associated with the third shift signal is started.

[0083] Example 9. A bicycle gear shifting device according to Example 4, wherein the second shift signal represents a first switching duration of the second switch, and the fourth shift signal represents a longer second switching duration of the second switch, the controller is configured to…

[0084] When the second switch is actuated, the signal is temporarily determined to be a second shift signal, and control begins on at least one of the first and second gear shifting devices associated with the second shift signal.

[0085] When it is determined that the actuation of the switch actually represents the second shift duration, the determination result is changed to the signal being the fourth shift signal, control of at least one of the first and second gear shift devices associated with the second shift signal is terminated, and control of only one of the first and second gear shift devices associated with the fourth shift signal is started.

[0086] Example 10. The bicycle gear shifting device according to Example 8 or 9, wherein the second switching duration represents that the switch is actuated more than once.

[0087] Example 11. The bicycle gear shifting device according to Example 3 or 4, wherein the first mode represents a single switch switching and the second mode represents a double switch switching.

[0088] Example 12. The bicycle gear shifting device according to any one of Examples 1-11, wherein the minimum gear ratio step size that can be achieved by the first gear shifting device is smaller than the minimum gear ratio step size that can be achieved by the second gear shifting device.

[0089] Example 13. A bicycle gear shifting device according to any one of Examples 1-12, wherein the controller is configured to control only the second gear shifting device to change its gear ratio in response to receiving a third shift signal and / or a fourth shift signal.

[0090] Example 14. A bicycle gear shifting device according to any one of Examples 1-13, wherein the controller is configured to control only the second gear shifting device to increase the gear ratio of the bicycle gearbox in response to receiving a third shift signal or a fourth shift signal.

[0091] Example 15. A bicycle gear shifting device according to any one of Examples 1-14, wherein the controller is configured to control only the second gear shifting device to reduce the gear ratio of the bicycle derailleur in response to receiving a fourth shift signal or a third shift signal.

[0092] Example 16. A bicycle gear shifting device according to any one of Examples 1-13, wherein the controller is configured to control only the second gear shifting device to shift to the next higher gear ratio of the second gear shifting device in response to receiving a third shift signal, and when the gear ratio of the second gear shifting device is already at its maximum, to control only the first gear shifting device to shift to a gear ratio higher than the next higher gear ratio of the first gear shifting device in response to receiving a third shift signal.

[0093] Example 17. A bicycle gear shifting device according to any one of Examples 1-15, wherein the controller is configured to control only the second gear shifting device to shift to the next lower gear ratio of the second gear shifting device in response to receiving a fourth shift signal, and when the gear ratio of the second gear shifting device is already at its minimum, to control only the first gear shifting device to shift to the next lower gear ratio of the first gear shifting device in response to receiving a fourth shift signal.

[0094] Example 18. A bicycle gear shifting device according to any one of Examples 1-17, wherein the first gear shifting device is an electrically actuated rear derailleur, and the second gear shifting device is an electrically actuated internal hub derailleur or an electrically actuated internal crank derailleur.

[0095] Example 19. A bicycle gear shifting device according to any one of Examples 1-18, wherein at least one synchronous shifting path includes at least one synchronous upshifting path and at least one synchronous downshifting path, and the controller is further configured to control at least one of a first gear shifting device and a second gear shifting device according to the synchronous upshifting path in response to receiving a first shifting signal, and to control at least one of the first gear shifting device and the second gear shifting device according to the synchronous downshifting path in response to receiving a second shifting signal.

[0096] Example 20. The bicycle gear shifting device according to Example 19, wherein the controller is further configured to set at least one synchronous upshift point and at least one synchronous downshift point to provide two different synchronous shifting paths.

[0097] Example 21. A bicycle gear shifting device, comprising:

[0098] A controller configured to be operatively connected to a first switch to receive a first shift signal, and operatively connected to a second switch to receive a second shift signal;

[0099] The controller is configured to:

[0100] In response to receiving the first shift signal, only the first gear shifting device of the bicycle derailleur is controlled to increase the gear ratio of the bicycle derailleur;

[0101] In response to receiving a second shift signal, only the first gear shifting device of the bicycle derailleur is controlled to reduce the gear ratio of the bicycle derailleur;

[0102] In response to receiving a third shift signal different from the first shift signal from the first switch or in response to receiving a fourth shift signal different from the second shift signal from the second switch, only the second gear shifting device is controlled to change the gear ratio of the bicycle gearbox.

[0103] Example 22. The bicycle gear shifting device according to Example 21, wherein the first shift signal represents a first triggering mode of the first switch, such as a single shift; and wherein the second shift signal represents a first triggering mode of the second switch, such as a single shift.

[0104] Example 23. The bicycle gear shifting device according to Example 22, wherein the third signal represents a second triggering method of the first switch that is different from the first triggering method, such as double switching or long holding.

[0105] Example 24. The bicycle gear shifting device according to Example 22 or 23, wherein the fourth signal represents a second switching mode of the second switch that is different from the first switching mode, such as double switching or long hold.

[0106] Example 25. A bicycle gear shifting device according to any one of Examples 21-24, wherein the minimum gear ratio step size that can be achieved by the first gear shifting device is smaller than the minimum gear ratio step size that can be achieved by the second gear shifting device.

[0107] Example 26. The bicycle gear shifting device according to Example 25, wherein the controller is configured to control only the second gear shifting device to change its gear ratio in response to receiving a third shift signal and / or a fourth shift signal.

[0108] Example 27. A bicycle gear shifting device according to Example 25 or 26, wherein the controller is configured to control only the second gear shifting device to increase the gear ratio of the bicycle derailleur in response to receiving a third shift signal or a fourth shift signal.

[0109] Example 28. A bicycle gear shifting device according to Example 25, 26 or 27, wherein the controller is configured to control only the second gear shifting device to reduce the gear ratio of the bicycle derailleur in response to receiving a fourth shift signal or a third shift signal.

[0110] Example 29. The bicycle gear shifting device according to Example 27, wherein the controller is configured to control only the second gear shifting device to shift to the next higher gear ratio of the second gear shifting device in response to receiving a third shift signal, and when the gear ratio of the second gear shifting device is already at its maximum, to control only the first gear shifting device to shift to the next higher gear ratio of the first gear shifting device in response to receiving a third shift signal.

[0111] Example 30. The bicycle gear shifting device according to Example 28, wherein the controller is configured to control only the second gear shifting device to shift to the next lower gear ratio of the second gear shifting device in response to receiving a fourth shift signal, and when the gear ratio of the second gear shifting device is already at its minimum, to control only the first gear shifting device to shift to the next lower gear ratio of the first gear shifting device in response to receiving a fourth shift signal.

[0112] Example 31. A bicycle gear shifting device according to any one of Examples 21-30, wherein the first gear shifting device is an electrically actuated rear derailleur, and the second gear shifting device is an electrically actuated internal hub derailleur or an electrically actuated internal crank derailleur.

[0113] Example 32. A bicycle gear shifting device according to any one of Examples 1-30, wherein: the first gear shifting device and the second gear shifting device are included in an electrically actuated internal hub gearbox; the first gear shifting device and the second gear shifting device are included in an electrically actuated internal crank gearbox; the first gear shifting device is included in an electrically actuated internal hub gearbox, and the second gear shifting device is included in an electrically actuated internal crank gearbox; or the first gear shifting device is included in an electrically actuated internal crank gearbox, and the second gear shifting device is included in an electrically actuated internal hub gearbox.

[0114] Example 33. A bicycle gear shifting device, comprising:

[0115] A controller configured to be operatively coupled to a first switch to receive a first shift signal representing a first switching duration of the first switch, and a third shift signal representing a longer second switching duration of the first switch, the controller being configured to:

[0116] In response to receiving a first shift signal, control the first gear shift action; and

[0117] In response to receiving a third shift signal, control the third gear shift action.

[0118] Example 34. The bicycle gear shifting device according to Example 33, wherein the controller is configured to temporarily determine the signal as a first shift signal when the first switch is actuated, and to change the determination result to a third shift signal when it is determined that the actuation of the switch actually represents a second shift duration.

[0119] Example 35. A bicycle gear shifting device according to Example 33 or 34, wherein a first shift signal represents a short actuation of a switch, and a third shift signal represents a long actuation of a switch.

[0120] Example 36. A bicycle gear shifting device according to Example 33, 34 or 35, wherein a first shift signal represents a single closing and / or opening of a first switch, and a third shift signal represents a double closing and / or opening of the first switch.

[0121] Example 37. The bicycle gear shifting device according to Example 25, wherein the controller is configured to temporarily determine the signal as a first shift signal when the first switch is actuated, and to change the determination result to a third shift signal when it is determined that the actuation of the switch actually represents a double closure and / or opening of the first switch.

[0122] Example 38. A bicycle gear shifting device according to any one of Examples 34-37, wherein the controller is configured to actuate a first gear shifting action in response to a temporary determination that the signal is a first shift signal, and to stop the first gear shifting action and start a third gear shifting action in response to a change determination that the signal is a third shift signal.

[0123] Example 39. A bicycle gear shifting device according to any one of Examples 33-38, wherein the first gear shifting action controls at least one of a first gear shifting device and a second gear shifting device of the bicycle gearbox to change the gear ratio of the bicycle gearbox according to at least one synchronous shifting path; and the third gear shifting action controls only one of the first gear shifting device and the second gear shifting device to change the gear ratio of the bicycle gearbox.

[0124] Example 40. A bicycle gear shifting device according to any one of Examples 33-39, wherein the first gear shifting action is to control only the first gear shifting device of the bicycle derailleur to change the gear ratio of the bicycle derailleur; and the third gear shifting action is to control only the second gear shifting device to change the gear ratio of the bicycle derailleur.

[0125] Example 41. A bicycle gear shifting device according to any one of Examples 33-40, wherein the minimum gear ratio step size that can be achieved by the first gear shifting device is smaller than the minimum gear ratio step size that can be achieved by the second gear shifting device.

[0126] Example 42. A bicycle gear shifting system, comprising:

[0127] The bicycle gear shifting device according to any one of Embodiments 1-41;

[0128] First switch and second switch; and

[0129] First gear shifting device and second gear shifting device.

[0130] Example 43. A human-powered or light electric vehicle, such as a bicycle, including a bicycle gear shifting device according to any one of Examples 1 to 41, or a bicycle gear shifting system according to Example 42.

[0131] The invention has been described herein with reference to specific examples of embodiments thereof. However, it will be apparent that various modifications and changes may be made therein without departing from the spirit of the invention. For the purposes of clarity and concise description, features are described herein as part of the same or different examples or embodiments; however, alternative embodiments having combinations of all or some of the features described in these different embodiments are also contemplated.

[0132] The invention has been described herein with reference to specific examples of embodiments thereof. However, it will be apparent that various modifications, variations, substitutions, and alterations may be made therein without departing from the spirit of the invention. For the purpose of clarity and concise description, features are described herein as part of the same or separate embodiments; however, alternative embodiments having combinations of all or some of the features described in these separate embodiments are also contemplated and understood to fall within the framework of the invention as outlined in the claims. Therefore, the specification, drawings, and examples should be considered illustrative rather than restrictive. The invention is intended to cover all substitutions, modifications, and variations falling within the spirit and scope of the appended claims. Furthermore, many of the elements described are functional entities capable of being implemented as discrete or distributed components or in combination with other components in any suitable combination and location.

[0133] In the claims, any reference numerals within parentheses should not be construed as limiting the scope of the claims. The word “comprising” does not exclude the presence of other features or steps besides those listed in the claims. Furthermore, the words “a” and “an” should not be construed as limited to “only one” but are used to mean “at least one” and do not exclude multiple. The mere fact that certain means are stated in mutually different claims does not indicate that combinations of these means cannot be advantageously used.

Claims

1. A bicycle gear shifting device (1), comprising: A controller (2) configured to be operatively connected to a first switch (4) to receive a first shift signal (S1) and operatively connected to a second switch (6) to receive a second shift signal (S2); The controller (2) is configured to: In response to receiving the first shift signal (S1), control at least one of the first gear shifting device (104) and the second gear shifting device (106) of the bicycle gearbox (102) to change the gear ratio of the bicycle gearbox to the next higher gear ratio according to at least one synchronous shift path. as well as In response to receiving a second shift signal (S2), control at least one of the first gear shifting device (102) and the second gear shifting device (106) of the bicycle gearbox to change the gear ratio of the bicycle gearbox to the next lower gear ratio according to at least one synchronous shift path. The controller (2) is also configured to: In response to receiving a third shift signal (S3) different from the first shift signal from the first switch (4) or in response to receiving a fourth shift signal different from the second shift signal from the second switch (6) (S4), only one of the first gear shifting device and the second gear shifting device (102, 106) is controlled to change the gear ratio of the bicycle gearbox.

2. The bicycle gear shifting device (1) according to claim 1, characterized in that, The first shift signal (S1) represents a first switching mode of the first switch (4), such as a single switch; and wherein the second shift signal (S2) represents a first switching mode of the second switch (6), such as a single switch.

3. The bicycle gear shifting device (1) according to claim 2, characterized in that, The third signal (S3) represents a second switching mode of the first switch (4) that is different from the first switching mode, such as double switching or long holding.

4. The bicycle gear shifting device (1) according to claim 2 or 3, characterized in that, The fourth signal (S4) represents a second switching mode of the second switch (6) that is different from the first switching mode, such as double switching or long holding.

5. The bicycle gear shifting device (1) according to claim 3 or 4, characterized in that, The second mode represents holding the switch for a longer period of time than the first mode, wherein the controller (2) is configured to determine the signal as a first shift signal (S1) if the time between the actuation and release of the switch is less than a predetermined time interval (TL), and to determine the signal as a third shift signal (S3) if the switch has not been released after the predetermined time interval (TL).

6. The bicycle gear shifting device (1) according to claim 3 or 5, characterized in that, The first shift signal (S1) represents a first switching duration of the first switch, and the third shift signal (S3) represents a longer second switching duration of the first switch, the controller (3) being configured to, When the first switch (4) is actuated, the signal is temporarily determined to be a first shift signal (S1'), and control begins on at least one of the first gear shifting device and the second gear shifting device (102, 106) associated with the first shift signal, and When it is determined that the actuation of the switch actually represents the second switching duration, the determination result is changed to the signal being the third shift signal (S3), control of at least one of the first gear shifting device and the second gear shifting device (102, 106) associated with the first shift signal is stopped, and control of only one of the first gear shifting device and the second gear shifting device associated with the third shift signal is started.

7. The bicycle gear shifting device (1) according to claim 4 or 5, characterized in that, The second shift signal (S2) represents a first shift duration of the second switch (6), and the fourth shift signal (S4) represents a longer second shift duration of the second switch, the controller (2) being configured to, When the second switch is actuated, the signal is temporarily determined to be a second shift signal (S2'), and control begins on at least one of the first gear shifting device and the second gear shifting device (102, 106) associated with the second shift signal, and When it is determined that the actuation of the switch actually represents the second switching duration, the determination result is changed to the signal being the fourth shift signal (S4), control of at least one of the first gear shifting device and the second gear shifting device associated with the second shift signal is stopped, and control of only one of the first gear shifting device and the second gear shifting device associated with the fourth shift signal is started.

8. The bicycle gear shifting device (1) according to any one of claims 1-7, characterized in that, The minimum gear ratio step size that can be achieved using the first gear shifting device (102) is smaller than the minimum gear ratio step size that can be achieved using the second gear shifting device (106).

9. The bicycle gear shifting device (1) according to claim 8, characterized in that, The controller (2) is configured to: In response to receiving the third shift signal (S3), only the second gear shifting device (106) is controlled to increase the gear ratio of the bicycle gearbox.

10. The bicycle gear shifting device (1) according to claim 8 or 9, characterized in that, The controller (2) is configured to: In response to receiving the fourth shift signal (S4), only the second gear shifting device (106) is controlled to reduce the gear ratio of the bicycle gearbox.

11. The bicycle gear shifting device (1) according to claim 8 or 10, characterized in that, The controller (2) is configured to: In response to receiving the third shift signal, only the second gear shifting device (106) is controlled to shift to the next higher gear ratio of the second gear shifting device, and when the gear ratio of the second gear shifting device has reached its maximum value, in response to receiving the third shift signal, only the first gear shifting device is controlled to shift to a gear ratio higher than the next higher gear ratio of the first gear shifting device.

12. The bicycle gear shifting device (1) according to claim 8, 9 or 11, characterized in that, The controller (2) is configured to: In response to receiving the fourth shift signal, only the second gear shifting device (106) is controlled to shift to the next lower gear ratio of the second gear shifting device, and in response to receiving the fourth shift signal, only the first gear shifting device is controlled to shift to a gear ratio lower than the next lower gear ratio of the first gear shifting device.

13. The bicycle gear shifting device (1) according to any one of claims 8-12, characterized in that, The first gear shifting device (102) is an electrically actuated rear derailleur, and the second gear shifting device (106) is an electrically actuated internal hub gearbox or an electrically actuated internal crank gearbox.

14. The bicycle gear shifting device (1) according to any one of claims 1-12, characterized in that: The first gear shifting device (102) and the second gear shifting device (106) are included in an electrically actuated inner hub transmission; The first gear shifting device (102) and the second gear shifting device (106) are included in an electrically actuated internal crank gearbox; The first gear shifting device (102) is included in an electrically actuated internal hub transmission, and the second gear shifting device (106) is included in an electrically actuated internal crank transmission; or The first gear shifting device (102) is included in an electrically actuated internal crank gearbox, and the second gear shifting device (106) is included in an electrically actuated internal hub gearbox.

15. The bicycle gear shifting device (1) according to any one of claims 1 to 14, characterized in that, The at least one synchronous shift path includes at least one synchronous upshift path and at least one synchronous downshift path. The controller (2) is further configured to control at least one of the first gear shifting device and the second gear shifting device (102, 106) according to the synchronous upshifting path in response to receiving the first shift signal, and to control at least one of the first gear shifting device and the second gear shifting device according to the synchronous downshifting path in response to receiving the second shift signal.

16. The bicycle gear shifting device (1) according to claim 15, wherein, The controller (2) is also configured to set at least one synchronous upshift point and at least one synchronous downshift point to provide two different synchronous shift paths.

17. A human-powered or light electric vehicle, such as a bicycle, including a bicycle gear shifting device according to any one of claims 1 to 16.

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