Interface for an electrically assisted bicycle

Abstract

The present invention relates to an interface for an electrically assisted bicycle. The electric bicycle interface is a hybrid wired / wireless electric bicycle control system that integrates wireless bicycle components into the operation of an electric bicycle. The electric bicycle interface provides wired connection to frame-mounted controls and displays such as assist motor and battery, and provides a wireless communication bridge between wireless bicycle components and corresponding wireless controls located on the handlebars.

Description

[0001] This application is a divisional application of Chinese patent application No. 202011344997.4, filed on November 26, 2020, entitled "Interface for Electric Assisted Bicycle". Technical Field

[0002] This disclosure relates generally to human-machine interfaces (HMIs), and more specifically to HMIs for electric bicycles. Background Technology

[0003] Electric drive systems are used to help bicycle riders ride longer and / or faster. An auxiliary motor and battery are added to the bicycle to make it an electric bicycle (e.g., an e-bike). One type of e-bike requires pedaling to activate the auxiliary motor. Pedal force or pedal rotation is measured, and the e-bike's controller controls the auxiliary motor based on the measured pedal force or measured pedal rotation. For example, the auxiliary motor may be positioned on the e-bike's frame, or it may provide motor assistance at the e-bike's crank. Motor assistance can be provided based on measured pedal force or measured pedal rotation, such that the combined power of the power generated by the auxiliary motor and the driving power input generated by the rider is transmitted through the e-bike's geared transmission system. Summary of the Invention

[0004] In one example, the interface includes a housing attachable to a first frame portion of a bicycle and a processor supported by the housing. The interface also includes a first communication interface and a second communication interface for communication with the processor. The first communication interface is a wired communication interface, while the second communication interface is a wireless communication interface. The interface includes an input section for communication with the processor and supported by the housing. This input section is configured to generate a first control signal based on a first user input. The processor is configured to receive a second control signal via the second communication interface. The second control signal is generated by a control device attached to a second frame portion of the bicycle based on the second user input. The processor is also configured to control components of the bicycle via the first communication interface based on the first control signal and the received second control signal.

[0005] In one example, the first frame section is the top tube of the bicycle, while the second frame section is the handlebars of the bicycle.

[0006] In one example, the input section is the physical user interface.

[0007] In one example, the processor is also configured to receive data representing multiple characteristics associated with the bicycle components from a component via a first communication interface.

[0008] In one example, the interface also includes an output unit that communicates with the processor. The output unit is configured to output a representation of at least one of a plurality of characteristics associated with a component of the bicycle.

[0009] In one example, the output is a display supported by a housing. The display is configured to show a representation of at least one characteristic related to a component of the bicycle.

[0010] In one example, the interface also includes an ambient light sensor configured to determine the amount of ambient light in the environment where the interface is located. The processor is configured to adjust the brightness of the display based on the determined amount of ambient light in the environment.

[0011] The main component of a bicycle is the electric bicycle motor system. This system includes a drive motor and a battery. Several characteristics associated with the electric bicycle motor system include battery power, time to complete charging, charging rate, state of charge percentage, power level, speed, cadence, system warnings or error messages, or any combination thereof.

[0012] In one example, a component of the bicycle is an electric bicycle motor system. The electric bicycle motor system includes a drive motor and a battery. The processor is configured to be powered by the battery of the electric bicycle motor system via a first communication interface.

[0013] In one example, the electric bicycle motor system also includes a drive motor. The processor is configured to control the drive motor of the electric bicycle motor system via a first communication interface based on a first control signal or a received second control signal.

[0014] In one example, control of the drive motor of the electric bicycle motor system based on a first control signal or a received second control signal includes the processor being configured to turn the drive motor on or off, or to change the power level of the drive motor.

[0015] In one example, the control device attached to the second frame of the bicycle is a handlebar-mounted wireless electric bicycle control interface, a handlebar-mounted wireless gearshift or seatpost control interface, a handlebar-mounted wireless electric bicycle auxiliary level control interface, or a handlebar-mounted wireless automatic gearshift control interface.

[0016] In one example, the component is the first component. The processor is also configured to receive data from a second component of the bicycle, transmit data to a second component of the bicycle, or receive data and transmit data to a second component of the bicycle.

[0017] In one example, the interface also includes a third communication interface for communicating with the processor. The third communication interface is a wireless communication interface. The processor is configured to receive a second control signal via the second communication interface using a first wireless communication protocol. The processor is configured to receive data from a second component of the bicycle, transmit data to a second component of the bicycle, or receive data and transmit data to a second component of the bicycle via the third communication interface using a second wireless communication protocol. The second wireless communication protocol differs from the first wireless communication protocol.

[0018] In one example, the second component of the bicycle is a wirelessly controlled derailleur, a wirelessly controlled front suspension fork, or a wirelessly controlled rear suspension shock absorber.

[0019] In one example, the component is a first component, and the first component receives timing digital pulses from a speed sensor, which communicates with the processor via the first communication interface.

[0020] In one example, the processor is configured to communicate with a device external to the bicycle via a second or a third communication interface. The third communication interface is different from the second communication interface and is a wireless communication interface. The processor is also configured to determine whether a signal is received from the device external to the bicycle, and to allow components of the bicycle to operate when a signal is received from the device external to the bicycle.

[0021] In one example, the device on the outside of the bicycle is a passive wireless electronic device or a mobility device.

[0022] In one example, a bicycle communication device for an electric bicycle includes a housing attachable to the top tube of a bicycle frame, a processor supported by the housing, and a wired communication interface communicating with the processor. The wired communication interface is wiredly connected to an electric bicycle motor system. The electric bicycle motor system includes a drive motor. The bicycle communication device also includes a wireless communication interface communicating with the processor. The wireless communication interface is wirelessly connected to a control device attached to the bicycle handlebars. The bicycle communication device includes an input section supported by the housing and communicating with the processor. The input section is configured to generate a first control signal based on a first user input. The processor is configured to receive a second control signal from the control device attached to the bicycle handlebars via the wireless communication interface. The second control signal is used for the electric bicycle motor system and is generated by the control device based on the second user input. The processor is also configured to control the drive motor of the electric bicycle motor system via the wired communication interface based on the first control signal or the received second control signal.

[0023] In one example, the wireless communication interface is a first wireless communication interface. The bicycle communication device also includes a second wireless communication interface. The second wireless communication interface communicates with the processor and is wirelessly connected to a movable part of the bicycle. The movable part of the bicycle is movable relative to the bicycle communication device. The processor communicates with the controls attached to the bicycle handlebars and the movable part of the bicycle using different wireless protocols.

[0024] In one example, an electric bicycle system for a bicycle includes an electric bicycle motor system comprising a drive motor and a battery. The electric bicycle system also includes a bicycle communication device. The bicycle communication device includes a housing attachable to a bicycle frame, a processor supported by the housing, and a wired communication interface communicating with the processor. The wired communication interface is wiredly connected to the electric bicycle motor system. The bicycle communication device also includes a wireless communication interface communicating with the processor. The wireless communication interface is wirelessly connected to a control device attached to the bicycle handlebars. The bicycle communication device includes an input section supported by the housing and communicating with the processor. The input section is configured to generate a first control signal based on a first user input. The processor of the bicycle communication device is configured to receive a second control signal from the control device attached to the bicycle handlebars via the wireless communication interface. The second control signal is generated by the control device based on a second user input. The processor of the bicycle communication device is also configured to control the drive motor of the electric bicycle motor system via the wired communication interface based on the first control signal or the received second control signal. Attached Figure Description

[0025] The objects, features, and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 This is a schematic side view of an electric bicycle that can be equipped with an interface according to the teachings of this disclosure;

[0027] Figure 2 This is a schematic side view of an example of a drive unit;

[0028] Figure 3 This is an exemplary representation of an interface;

[0029] Figure 4 yes Figure 1 A schematic top view of an electric bicycle;

[0030] Figure 5 yes Figure 4 A close-up top view of a portion of an electric bicycle;

[0031] Figure 6 This is a front view of an example of the interface;

[0032] Figure 7 This is a front view of an example of a standalone display device;

[0033] Figure 8 This is a first example representation of an electric bicycle system;

[0034] Figure 9 This is a second example representation of an electric bicycle system;

[0035] Figure 10 This is a representation of a third example of an electric bicycle system; and

[0036] Figure 11 This is a representation of the fourth example of an electric bicycle system. Detailed Implementation

[0037] Multiple peripheral input terminals are provided for controlling the auxiliary motor of the electric bicycle. Input terminals such as power on / off, power assist level, battery level, and / or other input terminals can be provided. Additionally, the characteristics of the electric bicycle's auxiliary motor and battery are displayed while the rider is riding the electric bicycle. Characteristics such as battery level, power setting, gear indication, speed, pace, power, and / or other features can be displayed to the rider.

[0038] Riders can control peripheral inputs and view displayed features (e.g., via a monitor) while riding an electric bicycle. In existing electric bicycles, the peripheral inputs and monitor can be located on the handlebars and can be wired to the electric bicycle's control system.

[0039] However, the wiring between the peripheral inputs and displays on the handlebars and the electric bicycle system (e.g., including the battery and / or auxiliary motor) on the frame is complex, and there is a risk of malfunction due to the movement of the handlebars relative to the frame, and consequently, the movement of the peripheral inputs and displays attached to the handlebars relative to the frame. Mounting the peripheral inputs and displays on the handlebars also competes for space, as a full-featured mapping computer can also be mounted on the handlebars.

[0040] Other bicycle components will be integrated into the operation of the e-bike (e.g., auxiliary motor). These other components include, for example, electronic derailleurs, geared hubs, suspension, height-adjustable seatposts, lights, audio systems, power meters, computing devices, other sensors (e.g., pace sensors, wheel speed sensors, tilt sensors, wind speed sensors, direction sensors, height sensors, seat pressure sensors, pole height sensors, pedal force sensors), and / or other components. These bicycle components can be controlled wirelessly, as wiring is a major source of failure for bicycle components (e.g., mountain bikes). Wireless bicycle components can be controlled by corresponding wireless controls located on the handlebars.

[0041] The e-bike interface of this embodiment (e.g., a bicycle communication device (BCA)) is a hybrid wired / wireless electric bicycle control system that integrates wireless bicycle components into the operation of an e-bike. The e-bike interface provides frame-mounted controls and a display wired to, for example, an auxiliary motor and a battery, and provides a wireless communication bridge between the wireless bicycle components and corresponding wireless controls located on the handlebars.

[0042] The e-bike interface can be configured to turn on and off a part of the e-bike system (e.g., the auxiliary motor). The e-bike interface is also configured to display characteristics of the e-bike system, such as battery power, gear position indication, power level, speed, pace, system warnings or error messages, and / or other information. The rider can change the power level of the e-bike system (e.g., the auxiliary motor's power level) via the e-bike interface. The e-bike interface acts as a communication bridge between the controller area network bus (CANBUS) of a wired e-bike system and multiple wireless components integrated into the functions of the e-bike system. Examples of such wireless components include handlebar-mounted wireless ride boost buttons, wirelessly controlled rear derailleurs, handlebar-mounted wireless shifters and seatpost control units, wirelessly controlled front suspension forks and / or wirelessly controlled rear suspension shock absorbers, handlebar-mounted wireless assist level buttons, and / or handlebar-mounted wireless automatic shift setting buttons.

[0043] Now turn to the attached image. Figure 1An example of a bicycle 100 on which the disclosed interface can be implemented is shown in general. In this example, the bicycle 100 may be a mountain bike. In some cases, the bicycle 100 may be an electric bicycle. The bicycle 100 has a frame 102, handlebars 104 located near the front end of the frame 102, and a seat or saddle 106 for supporting the rider above the top of the frame 102. The bicycle 100 also has a first wheel or front wheel 108 carried and supported by a fork 110 of the frame 102. The bicycle 100 also has a second wheel or rear wheel 112 supporting the rear end of the frame 102. The rear end of the frame 102 may be connected to a rear suspension assembly 114. The bicycle 100 also has a drivetrain 116 with a crank assembly 118 operably coupled via a chain 120 and a rear derailleur 122 to a rear cassette 124 near the axis of rotation of the rear wheel 112. The crank assembly 118 includes two cranks 123 and two pedals 125, which are connected to the two cranks 123 on opposite sides of the frame 102 of the bicycle 100.

[0044] In the illustrated example, the rear derailleur 122 includes a power source (e.g., a battery) and a motor, and receives instructions (e.g., wirelessly) from a controller 126 (e.g., a shifter or central controller) mounted on the handlebars 104 or an interface of this embodiment to shift gears on the rear cassette 124. In one embodiment, the rear derailleur 112 receives instructions from an e-bike control system 128 (e.g., including one or more processors, control circuitry, and / or a power source 130) to shift gears on the rear cassette 124. The rear derailleur 122 uses its power source and motor to shift gears based on the received instructions.

[0045] In one embodiment, the rear derailleur 122 is powered by a power source external to the bicycle. For example, the rear derailleur 122 is powered by a power source 130 (e.g., a battery) of the electric bicycle control system 128. In another embodiment, the rear derailleur 122 is connected, for example, via a shift cable to an input section (e.g., a shifter) on the handlebars 104, and shifts gears on the rear cassette 122 based on movement of the shifter (e.g., by the rider) and therefore based on movement of the shift cable.

[0046] Interface 132 (e.g., human-machine interface (HMI)) may be mounted to the frame 102 of bicycle 100. For example, interface 132 may be mounted to the top tube 134 of frame 102. Interface 132 may be connected to the power supply 130 (e.g., battery) of electric bicycle control system 128 via wire 136 (e.g., bus).

[0047] The battery 130 of the electric bicycle control system 128 is also supported by the frame 102 of the bicycle 100. For example, the battery 130 of the electric bicycle control system 128 is supported by the bottom tube 137 of the frame 102 of the bicycle 100. A wire 136 extends, for example, through a portion of the bottom tube 137 of the frame 102 and a portion of the top tube 134 of the frame to electrically connect the electric bicycle control system 128 (e.g., battery 130) to the interface 132. Other components (e.g., controller 126) may be connected to the power source 130 of the electric bicycle control system 128 via other wires.

[0048] In some cases, the conductor 136 can be sealed at the point where it exits the frame 102 of the bicycle 100. For example, epoxy resin or another sealing material can be applied around the conductor 136 at the point where it exits the frame 102. This material can form a can seal around the conductor 136. This seal prevents water from entering the frame 102 from the outside of the bicycle 100. Additionally or alternatively, this seal can reduce strain on the conductor 136.

[0049] Power supply 130 supplies power to interface 132 via wire 136. Interface 132 can also receive data (e.g., instructions) and / or send data to other components of electric bicycle control system 128 (e.g., one or more processors and / or control circuits) via wire 136.

[0050] The power source 130 also provides power to the drive unit 138 (e.g., including an electric bicycle motor) operatively coupled to the crank assembly 118. In one embodiment, the interface 132 may also be powered by a separate battery to provide access to the electric bicycle controls when the battery 130 of the electric bicycle control system 128 is not attached to the bicycle 100. The interface 132 may also communicate with multiple external wireless devices with or without the battery 130 of the electric bicycle control system 128 attached.

[0051] Although Figure 1 The bicycle 100 shown is a mountain bike, but the interface 132, including the specific embodiments and examples disclosed herein, as well as alternative embodiments and examples, can be implemented on other types of bicycles. For example, the disclosed interface 132 can be used on road bicycles and bicycles with mechanical (e.g., cable, hydraulic, pneumatic, etc.) and non-mechanical (e.g., wired, wireless) drive systems. The disclosed interface 132 can also be implemented on other types of two-wheeled, three-wheeled, and four-wheeled rickshaws.

[0052] The drive unit 138 is mounted to the frame 102 of the bicycle 100. For example, the drive unit 138 is mounted to the frame 102 of the bicycle 100 via one or more bolts and threaded openings within the frame 102. The drive unit 138 may also be attached to the frame 102 in other ways. (See reference...) Figure 2 The crankshaft passes through an opening 140 in the drive unit 138 and connects to the two cranks 123 of the crank assembly 118. During operation, the rider rotates the two cranks 123 via two pedals 125, thereby rotating the crankshaft. The crank assembly 118 may include sensors configured to measure shaft rotation and force on the shaft. At least some sensors may be disposed, for example, on and / or within the crankshaft. The crankshaft drives the output ring 142 of the drive unit 138 in the forward drive direction rather than in the backward pedaling direction using, for example, a one-way clutch 144 between the crankshaft and the output ring 142.

[0053] The shaft rotation measured (e.g., by a sensor) and the force measured on the shaft can be used to control the electric drive motor 146 (e.g., an auxiliary motor) of the drive unit 138. The auxiliary motor 146 can also drive the rotation of the output ring 142 directly or by using gears. The output ring 142 thus provides output power to the transmission 116, which is a combination of the rider's input power and the output power of the auxiliary motor 146.

[0054] The drive unit 138 may include internal electronics to control the operation of the auxiliary motor 146, measure shaft input, measure the tilt angle of the bicycle 100, measure the acceleration of the bicycle 100, measure the temperature of the bicycle 100, and / or reduce the voltage of the battery 130 of the electric bicycle control system 128 to accommodate and power external devices when lower voltage is required. Additionally, fewer and / or different internal electronics may be housed within the drive unit 138.

[0055] The housing 148 of the drive unit 138 also serves as a heat sink to remove heat generated by the auxiliary motor 146. The housing 148 of the drive unit 138 can be made of any number of different thermally conductive materials, including, for example, aluminum. Aluminum is lightweight and a good heat dissipator. However, aluminum is not a good conductor of wireless signals. The controller of the drive unit 138 can therefore be housed in the housing 148 of the drive unit 138 and wired to the internal electronics of the drive unit 138. The controller of the drive unit 138 can be made of a material through which wireless control signals can pass. In other embodiments, the housing 148 is made of a different thermally conductive material (e.g., thermally conductive plastic) that transmits wireless signals better than aluminum. In one embodiment, the controller of the drive unit 138 is wired to the electric bicycle control system 128.

[0056] Data from drive unit 138 (e.g., a sensor of drive unit 138) can be transmitted to interface 132. Figure 3 This is a representation of one implementation of interface 132. For example... Figure 1 As shown in the example, interface 132 can be wired to electric bicycle control system 128 (e.g., battery 130 of electric bicycle control system 128). Alternatively or additionally, interface 132 can be wired to drive unit 138. Interface 132 can be powered directly from battery 130 of electric bicycle control system 128. However, interface 132 can operate at a voltage lower than that of battery 130 of electric bicycle control system 128, and electric bicycle control system 128, interface 132, or another component of bicycle 100 may include voltage reducers and / or voltage regulators configured to reduce battery voltage and / or maintain a reduced voltage.

[0057] Interface 132 includes a controller 150 (e.g., an electronic control device), a memory 152, a wired interface 154 for communicating with one or more wired devices, a wireless interface 156 for communicating with one or more wireless devices, an input section 158, and an output section 160. The controller 150, memory 152, wired interface 154, wireless interface 156, input section 158, and output section 160 are supported by one or more housings of interface 132. Interface 132 may include more, fewer, and / or different components. The controller 150, memory 152, wired interface 154, wireless interface 156, input section 158, and output section 160 can communicate with each other via one or more printed circuit boards (PCBs), wires, traces, pads, and / or other components within interface 132.

[0058] Controller 150 operates interface 132 (e.g., determining what to display on interface 132, generating instructions based on the rider's interaction with input 158). Controller 150 may include any number of controllers of different types, including, for example, general-purpose processors, central processing units, control processors, graphics processors, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, digital circuits, analog circuits, combinations thereof, or other processing devices now known or developed hereafter. Controller 150 may be a single device or multiple devices operating serially, in parallel, or individually. Controller 150 is configured by instructions, design, hardware, and / or software to perform the actions discussed herein.

[0059] Memory 152 is configured to store data regarding the setup, use, or use or identification of an external pairing device for the electric bicycle. Memory 152 may also be configured to store data received from components of the bicycle 100 located outside interface 132 (e.g., the rear derailleur 122, the electric bicycle control system 128, and the gearshift on the handlebars 104). Memory 152 is a computer-readable storage medium. Memory 152 may include various types of volatile and non-volatile storage media, including but not limited to random access memory, read-only memory, programmable read-only memory, electrically erasable read-only memory, flash memory, magnetic tape or disk, optical media, etc. Memory 152 may be a single device or a combination of multiple devices. Memory 152 may be adjacent to processor 150, be part of processor 150, networked with processor 150, and / or located remotely from processor 150.

[0060] Wired interface 154 can be any number of different wired interfaces configured to receive / transmit power, and can be used for any number of different wired communications on bicycle 100. For example, wired interface 154 can be a coaxial cable interface. More and / or different wired interfaces can be provided.

[0061] In addition to the wired communication protocols used within the electric bicycle motor / battery system, interface 132 can use multiple wireless protocols via a single transmitter or multiple different transmitters. For example, interface 132 can communicate with the rear derailleur 122 using a derailleur protocol, with a handheld device using Bluetooth or BTLE, and with a wireless fitness device using a low-power protocol such as ANT or ANT+. More, fewer, and / or different wireless protocols can be used.

[0062] exist Figure 3 In the example shown, interface 132 includes three wireless interfaces 156a, 156b, and 156c. For example, the first wireless interface 156a can be used to communicate with the rear derailleur 122 and / or the shifter on the handlebars 104, the second wireless interface 156b (e.g., a Bluetooth interface) can be used to communicate with a handheld device, and the third wireless interface 156c (e.g., an ANT+ interface) can be used to communicate with a wireless fitness device. In one embodiment, interface 132 includes a single wireless interface configured to operate using different wireless protocols. Interface 132 may include more, fewer, and / or different wireless interfaces. In one embodiment, interface 132 includes an input (e.g., a button or other input) to pair interface 132 with wireless components outside interface 132 on bicycle 100 (e.g., the rear derailleur 122 and / or the shifter on the handlebars 104).

[0063] The controller 150 of interface 132 serves as a bridge between the electric bicycle control system 128 and user inputs (e.g., via input section 158 at interface 132) and / or wireless devices (e.g., handlebar-mounted wireless controllers). Interface 132, via controller 150 and wireless interface 156, can communicate using various wireless protocols depending on the device with which interface 132 communicates. For example, interface 132 converts signals to and from the electric bicycle control system 128 into protocols that can be understood by the receiving component (e.g., the electric bicycle control system 128, rear derailleur 122, or handlebar-mounted controller).

[0064] Interface 132 includes an input section 158, for example, in the form of a button, but may provide other input sections 158, such as touchscreen control or some other form of motion sensing using a sensor or camera. In one embodiment, the button 158 of interface 132 may be dynamically backlit, for example, to make it easier to find in dark conditions. Figure 3 The example shows three input buttons 158, but more or fewer buttons can be provided.

[0065] Input buttons 158 can directly control components of the bicycle 100. For example, one or more input buttons 158 can directly control the drive unit 138 of the bicycle 100. Figure 3 In the example, input button 158 includes a first input button 158a that turns drive unit 138 on or off, and a second input button 158b that changes the output power mode of drive unit 138 (e.g., low, medium, high, turbo). The rider can press the second input button 158b multiple times, for example, until the output power mode (e.g., high) of drive unit 138 to be selected is displayed at interface 132.

[0066] Interface 132 includes an output 160 in the form of a display, but may provide other types of outputs 160, including, for example, audio outputs (e.g., speakers and / or vibration circuitry to indicate to the rider that a specific configuration of the bicycle 100 has been reached, predetermined conditions have been met, and / or other events). Interface 132 may include one or more separate displays 160 (e.g., corresponding to different types of information to be displayed).

[0067] Figure 3 The example shows six different display outputs 160. More, fewer, and / or different display outputs and / or one or more audio outputs can be provided. For example, Figure 3The example shows a first display output 160a indicating whether the drive unit 138 is on or off. A second display output 160b indicates the battery level of the bicycle 100. For example, the second display output 160b indicates the battery level of the battery 130 of the electric bicycle control system 128. A third display output 160c indicates the output power mode of the drive unit 138 (e.g., low, medium, high, Turbo). A fourth display output 160d indicates whether the interface 132 is paired with one or more components of the bicycle 100 (e.g., the gearshift on the handlebars 104 and / or the controller of the drive unit 138). A fifth display output 160e indicates different modes of the bicycle 100 (e.g., Auto and Moto). A sixth display output 160f indicates the gear the bicycle 100 is currently being ridden in. In one embodiment, another output is displayed when the battery 130 of the electric bicycle 100 is charging. For example, interface 132 can display information about the battery charging cycle, such as the remaining time to complete charging, the charging rate, and / or the percentage of charge.

[0068] The displayed output 160 may be provided within a single display (e.g., a single LCD screen). Alternatively, the displayed output 160 may be divided into at least two groups displayed on at least two separate displays (e.g., two separate LCD screens).

[0069] Data generated by the output unit 160 can be transmitted to the interface 132 in any number of ways. For example, data can be transmitted wirelessly from corresponding components of the bicycle 100 via wire 136. For example, the electric bicycle control system 128 can identify and transmit the battery level of the battery 130, whether the drive unit 138 is on or off, and the power mode of the drive unit 138 via wire 136; for example, the shifter or rear derailleur 122 on the handlebars 104 can identify the gear position indication and transmit it wirelessly to the interface 132. Data can be identified and transmitted at predetermined time intervals (e.g., every 0.1 seconds) and / or in response to changes (e.g., the drive unit 138 is turned on or off).

[0070] Reference Figure 4 and Figure 5 For example, the input button 158 and the display output section 160 of the interface 132 can be located on the bicycle 100, allowing the rider to use the input button 158 and view the location of the display output section 160 respectively while riding. Figure 4 and Figure 5As shown in the example, interface 132 may be provided on and / or inside the top tube 134 of the frame 102, in a location closer to the handlebars 104 than in the saddle 106 and handlebars 104. Other locations may be provided for interface 132 along the top tube 134 or at other locations on the frame 102.

[0071] Interface 132 can be attached to the frame 102 of bicycle 100 in any manner. For example, the top tube 134 of frame 102 may include an opening sized and shaped to mate with at least a portion of interface 132, and interface 132 may be positioned within the opening. Top tube 134 may also include a hole through which interface 132 can be attached to frame 102 using connector 162 (e.g., screw). Interface 132 can be attached to the frame 102 of bicycle 100 in other ways.

[0072] exist Figure 6 In the example shown, interface 132 includes two input sections 158 (e.g., a first input button 158a and a second input button 158b) and a single display 164 (e.g., for displaying one or more output sections 160). The first input button 158a is, for example, a main switch to turn the auxiliary motor 146 on and off, while the second input button 158b toggles the assistance level of the auxiliary motor 146 (e.g., OFF, ECO, EMTB, CUSTOM) by a short press. Display 164 displays the second output section 160b, battery level, third output section 160c, and power mode. Display 164 shows a battery level exceeding 50% in a partially filled graphic on the second output section 160b, and the power mode in a highlighted mode (e.g., MTB) on the third output section 160c. Display 164 also displays other information that may be useful to the rider. Data used for this display information can be received wirelessly or via a wired connection from any number of components of the bicycle 100 by interface 132.

[0073] However, the input section 158 of interface 132 can be used for a dual purpose depending on the actuation method. For example, the same button (e.g., the second button 158b) can change the assist level when pressed and released briefly (e.g., about one second), but can perform a pairing procedure when pressed for a defined period of time (e.g., five seconds or more).

[0074] In one implementation, the function of each input 158 ​​can be changed using a setup tool such as a telephone application, a computer program, or a series of operations on the bicycle 100 that changes the interface 132 into a setup mode, in which button functions are defined and changed. Similarly, display options can be programmed in the same way. For example, a user can change display settings to modify the content, graphic design, intensity, and duration of information displayed on the monitor 164.

[0075] In one embodiment, the output unit 160 may also wirelessly transmit to and display on a separate display of another wireless device (e.g., a mobile device such as a cellular phone) mounted to the handlebars 104 or not attached to the bicycle 100. Instead of displaying on the interface 132, or in addition to displaying at the interface, the output unit 160 may display on a separate display. Reference Figure 7 A separate display 170 shows battery level 160b, power mode 160c and gear 160f, as well as other information for the separate display 170, such as speed 172, distance traveled 174 and battery level 176.

[0076] In one embodiment, interface 132 includes an ambient light sensor configured to automatically adjust the brightness of one of the displays (e.g., a single OLED display showing all outputs 160) such that the displayed outputs 160 are visible in bright ambient conditions but do not become distracting or glaring in low ambient light conditions. For example, LEDs on interface 132 can be used to sense ambient light levels. In one embodiment, the ambient light sensor can be used to automatically turn on bicycle headlights / taillights when the ambient light level is below a certain threshold.

[0077] As a security measure, interface 132 can communicate wirelessly with, for example, a passive wireless electronic device (e.g., a wireless key card) carried by the owner of bicycle 100. If interface 132 detects that the wireless key card is sufficiently close to bicycle 100, all electric bicycle functions can be enabled. If interface 132 does not detect the key card, the electric bicycle functions can be disabled to prevent theft. In one embodiment, a mobile phone associated with the owner can be used interchangeably with the key card as an unlocking device.

[0078] The controls and display on interface 132 can be used as the primary and sole control of the electric bicycle control system 128. In one embodiment, redundant control can be provided on the handlebars 104 using a wireless input device. This allows controls such as the power output of the auxiliary motor to be controlled either at interface 132 or at a wireless remote control on the handlebars 104. However, if a remote control button is used in this configuration, interface 132 acts as a bridge; the signal generated by the remote button is wirelessly transmitted to interface 132, and interface 132 then transmits the generated signal to the electric bicycle control system 128. Thus, interface 132 can control the same characteristics of the electric bicycle 100 through multiple inputs.

[0079] Figure 8 This is a simplified schematic diagram illustrating an electric bicycle system 180 including an interface 132. The interface 132 is connected via a wire 136 to a first component 182 (e.g., an electric bicycle control system 128 including a battery 130 (not shown) and an auxiliary motor 146 of the drive unit 138). The interface 132 is wirelessly connected to a second component 184 (e.g., a travel or assist button mounted to the handlebars 104). Thus, all the complex functions of the input section and display are directly wired to the interface 132 and mounted on the bicycle frame 104, and these functions are operable and visible to the rider via a large power supply from the battery 130 of the electric bicycle control system 128. This allows the display 164 to remain on and be very bright while minimizing the risk of the battery 130 running out. The second component 184, located at the handlebars 104, can only briefly transmit a wireless signal when actuated, and therefore can be configured with a very small power source and is thus a very small device. This allows the second component 184 to be easily integrated into other handlebar-mounted devices, such as shifters, brake levers, seatpost controls, or even the handlebars 104 themselves. The electric bicycle system 180 may include more, fewer, and / or different components.

[0080] Figure 9 This is a more complex schematic diagram of an electric bicycle system 190 with added third components 192 and fourth components 194 controlled by interface 132. The third components 192 and fourth components 194 can be wired or wirelessly powered. The third components 192 and fourth components 194 can be controlled wired or wirelessly. The third components 192 and fourth components 194 may include an electronic derailleur (e.g., a rear derailleur 122), a height-adjustable seatpost, a suspension system such as a suspension seatpost, a front shock absorber, a rear shock absorber, or suspension frame elements. Additional devices may be accessories such as lights, speakers, air pressure control systems, cameras, or any other safety-related devices such as locks. The electric bicycle system 190 may include more, fewer, and / or different components.

[0081] Figure 10 This is a schematic diagram of another electric bicycle system 200, and... Figure 8 Compared to the example shown, a third component 192, a battery 130 (e.g., a system battery), and a sensor 202 are added. In this example, the first component 182 is a drive unit 138. The system battery 130 may include a controller 204 (e.g., a microprocessor) and a wired communicator 206 (e.g., a wired interface). In an alternative embodiment, the communicator 206 may be a wireless communicator. The microprocessor 204 may track any number of parameters, including, for example, battery voltage, battery temperature, current from the battery, battery state of charge, individual battery cell voltage, charging cycles, on-time, and / or any number of other parameters. The microprocessor 204 may control the output of the battery 130 to the rest of the electric bicycle system 200 (e.g., on / off, maximum current, voltage, etc.) based on these or other measured parameters.

[0082] The wired communicator 206 of battery 130 can be, for example, a CAN bus type. The wired communicator 206 can send status information, such as battery status (e.g., voltage, temperature, state of charge, individual cell voltage, serial number, etc.), to the rest of the electric bicycle system and / or the charging system. In one embodiment, the microprocessor 204 and the wired communicator 206 are used to authenticate battery 130 to the rest of the electric bicycle system 200 to prevent the use of third-party batteries in the electric bicycle system 200. The wired communicator 206 can be used to provide firmware updates to the microprocessor 204 to change the behavior of battery 130. The wired communicator 206 of battery 130 can communicate with all other devices on the wired CAN bus (e.g., HMI 132, drive unit 138, sensor 202, etc.).

[0083] Typically, the speed sensor of an electric bicycle can communicate with the drive unit 138 using timed digital pulses. This pulse can be referred to as a reed signal. The pulse can correspond to a single rotation of a wheel (e.g., the front wheel 108 or the rear wheel 112). The time between pulses can be used by the drive unit 138 to calculate the wheel speed. The wheel speed data is used by the drive unit 138 to prevent providing motor assistance to the rider above a legally mandated speed threshold. Various system certifications and safety designs make it difficult to deviate from this conventional digital timed pulse. In the case of automatic shifting, a wheel speed update rate higher than one pulse per wheel revolution is desirable.

[0084] Sensor 202 is, for example, a speed sensor capable of updating at a rate higher than once per wheel revolution. Speed ​​sensor 202 reports speed data asynchronously to a consumer of speed data (e.g., HMI 132) without requiring changes to the interface to drive unit 138. For example, asynchronous data can be transmitted over a CAN bus. Therefore, electric bicycle system 200 can directly employ any combination of CAN bus speed data broadcast to all devices on the CAN bus and / or a digital timing pulse interface between speed sensor 202 and drive unit 138.

[0085] It may be desirable to power many or all electronic subsystems on an electric bicycle from battery 130 to minimize the number of batteries that need to be recharged or replaced. Additionally, wireless communication between devices may be necessary to reduce the complexity of physical interconnections between devices, even if they already include electrical connections between components. In another implementation, such as Figure 11 As shown, all subsystems communicate wirelessly, as indicated by dashed lines. For example, the wireless communication subsystems may include, but are not limited to, a bicycle communication device (HMI) 132, a speed sensor 202, a first component (drive unit) 182, a system battery 130, a second component 184, and a third component 192. Several subsystems are powered by the system battery 130 via wires 302. For example, the system battery 130 may provide power to the bicycle communication device (HMI) 132, the speed sensor 202, and the first component (drive unit) 182. Other subsystems or devices may be wirelessly connected to the system and may include a separate power source or receive power from a separate power source other than the system battery 130. Figure 10 and Figure 11 In this implementation, the speed sensor 202 is optional. The speed sensor 202 may optionally have a wired digital interface to the motor 146 in the first component 182, thereby providing a digital signal 306. Additionally, the battery 130 may wirelessly report charging status, temperature, or other telemetry data to the battery charger during the charging process.

[0086] The descriptions of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. These descriptions are not intended to be used as a complete description of all elements and features of devices and systems utilizing the structures or methods described herein. Many other embodiments will be apparent to those skilled in the art upon reading this disclosure. Other embodiments can be utilized and derived from this disclosure, such that structural and logical substitutions and changes can be made without departing from the scope of this disclosure. Furthermore, the illustrations are representative only and may not be drawn to scale. Some scales in the illustrations may be exaggerated, while others may be minimized. Therefore, this disclosure and the accompanying drawings should be considered illustrative rather than restrictive.

[0087] While this specification contains numerous details, these should not be construed as limiting the scope of the invention or the scope of the claims, but rather as descriptions of features characteristic of particular embodiments of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described above as operating in certain combinations, and even initially claimed in this way, one or more features from a claimed combination may be removed from that combination in some cases, and the claimed combination may be for sub-combinations or variations thereof.

[0088] Similarly, although operations and / or actions are depicted in the accompanying drawings and described herein in a specific order, this should not be construed as requiring such operations to be performed in the specific order shown or in sequential order, or requiring the execution of all shown operations to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that any described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0089] One or more embodiments of this disclosure may be referred to herein individually and / or collectively by the term "invention," for convenience only and not intended to actively limit the scope of this application to any particular invention or inventive concept. Furthermore, although specific embodiments have been shown and described herein, it should be understood that any subsequent arrangements designed to achieve the same or similar purpose may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent modifications or variations of the various embodiments. After reading this specification, combinations of the above embodiments, as well as other embodiments not specifically described herein, will be apparent to those skilled in the art.

[0090] This abstract of disclosure is provided to comply with 37 C.FR § 1.72(b) and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Furthermore, in the foregoing detailed description, various features may be grouped together or described in a single embodiment to facilitate the flow of this disclosure. This disclosure should not be construed as reflecting an intention that the claimed embodiments require more features than expressly recited in each claim. Rather, as reflected in the appended claims, the inventive subject matter may involve features fewer than all of those in any of the disclosed embodiments. Therefore, the following claims are incorporated into the detailed description, wherein each claim independently defines the claimed subject matter.

[0091] The foregoing detailed description should be considered illustrative rather than restrictive, and it should be understood that the following claims, including all equivalents, are intended to define the scope of the invention. The claims should not be construed as limited to the described order or elements unless otherwise stated. Therefore, all embodiments within the scope and spirit of the appended claims and their equivalents are claimed as part of the invention.

[0092] Cross-referencing related applications

[0093] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 940354, filed November 26, 2019, which is incorporated herein by reference in its entirety.

Claims

1. An interface for a bicycle, the interface comprising: A housing that can be attached to a first frame portion of the bicycle; The processor supported by the housing; A first communication interface and a second communication interface that communicate with the processor; as well as An input unit, which communicates with the processor and is supported by the housing, is configured to generate a first control signal based on a first user input and a second control signal based on a second user input. The processor is configured as follows: Receive a third control signal via the second communication interface; and The electric bicycle motor of the bicycle is controlled via the first communication interface based on the first control signal and the received third control signal. The second control signal executes the program.

2. The interface according to claim 1, wherein, The input section is the physical user interface.

3. The interface according to claim 2, wherein, The first user input includes pressing and releasing the physical user interface.

4. The interface according to claim 3, wherein, The first user input is pressing the physical user interface for one second.

5. The interface according to claim 4, wherein, The second user input includes pressing the physical user interface for a predetermined time period different from the first user input.

6. The interface according to claim 5, wherein, The second user input is pressing the physical user interface for at least five seconds.

7. The interface according to claim 1, wherein, The second control signal executes the pairing procedure.

8. The interface according to claim 1, wherein, The third control signal is generated by a control device attached to the second frame portion of the bicycle and is also generated by input from a third user.

9. The interface according to claim 8, wherein, The first frame portion is the top tube of the bicycle, and the second frame portion is the handlebars of the bicycle.

10. The interface according to claim 1, wherein, The interface also includes a display supported by the housing.

11. The interface according to claim 10, wherein, The display is configured to show a representation of at least one characteristic related to the electric bicycle motor.

12. The interface according to claim 11, wherein, The interface also includes an ambient light sensor configured to determine the amount of ambient light in an environment where the interface is located, wherein the processor is configured to change the brightness of the display based on the determined amount of ambient light in the environment.

13. The interface according to claim 11, wherein, The electric bicycle motor includes a drive motor and a battery, and the characteristics associated with the electric bicycle motor include battery power, time to complete charging, charging rate, percentage of charge status, power level, speed, cadence, system warnings or error messages, or any combination thereof.

14. The interface according to claim 1, wherein, The first communication interface is a wired communication interface, and the second communication interface is a wireless communication interface.

15. The interface according to claim 14, wherein, The processor is configured to communicate with an external device of the bicycle via a second or a third communication interface, the third communication interface being different from the second communication interface and being a wireless communication interface.

16. The interface according to claim 15, wherein, The processor is also configured to: Identify whether a signal is received from the device outside the bicycle; and The function of at least one of the first user input and the second user input is changed based on the signal received from the device outside the bicycle.

17. The interface according to claim 16, wherein, The device on the outside of the bicycle is a passive wireless electronic device or a mobility device.

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