control unit for a bicycle

A control unit for bicycles integrates sensor and actuator data with mobile device communication to enhance user interaction and safety by providing direct feedback and control, addressing the lack of centralized processing in existing systems.

DE102024208587A1Pending Publication Date: 2026-03-12ZF FRIEDRICHSHAFEN AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Modern bicycles lack a central control unit that efficiently processes data from various sensors and actuators while enabling seamless communication with mobile devices to enhance user interaction and safety.

Method used

A control unit with interfaces to bicycle sensors, actuators, and mobile devices, capable of receiving and processing data to inform users about events via actuators, including steering adjustments and smart home integration.

Benefits of technology

Enhances user experience by providing direct feedback and control over mobile device events and improving bicycle safety and controllability through real-time data processing and actuator responses.

✦ Generated by Eureka AI based on patent content.

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Abstract

Control unit (10) for a bicycle with an interface (1) to one or more bicycle sensors (4), an interface (2) to one or more bicycle actuators (5), and with an interface (3) to a mobile device (6), in particular a smartphone, wherein the control unit is configured to receive data relating to the communication between the mobile device and a user, and based on the data to determine suitable communication signals that inform the user about an event of the mobile device and to output them by means of an actuator.
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Description

[0001] The present invention relates to a control unit for a bicycle.

[0002] Accordingly, the following is planned: - a control unit for a bicycle with an interface to one or more bicycle sensors, an interface to one or more bicycle actuators, and with an interface to a mobile device, in particular a smartphone, wherein the control unit is configured to receive data relating to the communication between the mobile device and a user, and, based on the data, to determine suitable communication signals that inform the user about an event of the mobile device and to output them by means of an actuator.

[0003] Bicycle sensors or bicycle actuators are mounted on or can be mounted on a bicycle.

[0004] A bicycle steering system comprises sensors, actuators, and a control unit that work together to enable the bicycle to be steered. The control unit can be integrated as a standalone unit in the handlebar area or frame of the bicycle, or it can be part of another component. It receives data from the sensors, processes it, and sends control commands to the actuators.

[0005] Sensors are attached to various points on the bicycle to collect relevant data. Examples include steering angle sensors, which can be mounted on the handlebars or integrated into the steering mechanism and measure the handlebar's angle of rotation; torque sensors, which can be mounted on the handlebars or integrated into the steering mechanism and detect the torque applied to the handlebars; and tilt sensors, which are mounted on the frame or near the control unit and measure the bicycle's tilt. These sensors are connected to the control unit via cables or wireless connections, such as Bluetooth.

[0006] Actuators are the counterpart to sensors and make physical changes. Servo actuators, integrated into the steering system, make corrections to the steering angle. In a steer-by-wire system, electric motors could be used as actuators to assist or directly control steering movements. These actuators are also connected to the control unit via cables or wireless connections and receive control commands from it.

[0007] The steering system's operation begins with sensors capturing data on the current steering situation. This data, including steering angle, torque, and tilt, is sent to the control unit. The control unit processes the received data and analyzes the driving situation. Based on predefined algorithms, the control unit decides which adjustments are necessary. It then sends the corresponding control commands to the actuators, which then make mechanical adjustments to the steering. These adjustments can include turning the steering wheel or modifying the steering effort.

[0008] A mobile device is a portable electronic device that typically enables wireless communication and can run a variety of applications. Examples of mobile devices include smartphones, tablets, laptops, smartwatches, and e-readers. These devices are generally compact and lightweight, making them easy to carry and use on the go. Smartphones and tablets offer features such as telephony, internet access, multimedia playback, and numerous apps for various applications. Smartwatches are wearable devices that are often paired with smartphones and offer features such as fitness tracking, notifications, and basic app interaction.

[0009] Data relating to communication between an end device and a user includes, for example, control commands for issuing communication signals directed at the user, as well as the issued communication signals, such as alarms or haptic signals.

[0010] An event on a mobile device is any detectable action or change in state that can trigger a system response. These events can be caused by system processes or external influences. Examples of events include user input or system processes triggered by the operating system or background applications. This includes starting or stopping applications, receiving notifications or alerts, changing settings, or updating software.

[0011] Sensor events are captured by the device's integrated sensors and include motion data, location data, changes in ambient light, proximity sensors, or biometric data. Communication events include incoming or outgoing calls, SMS messages, emails, push notifications, or data traffic over mobile networks and Wi-Fi.

[0012] Other events can be caused by external influences. These include connecting or disconnecting peripheral devices such as chargers or headphones, changes in the network connection, or receiving signals from other devices via Bluetooth or NFC.

[0013] A human-machine interface (HMI) allows an operator to control a machine, an electrical or electronic device, and optionally to monitor machine states and intervene in a controllable process. Information ("feedback") can be provided via control panels with indicator lights, displays, or buttons, or via software through a visualization system running, for example, on a terminal. A light switch is an example of an HMI. The driver's area of ​​a vehicle also features numerous HMIs – from the control devices (pedals, steering wheel, gearshift and turn signal levers, etc.) to the visual feedback from the vehicle itself (displays for speed, range, radio program, navigation system, etc.).

[0014] A multifunctional actuator can generate various types of movement and / or physical effects, such as linear and / or rotational movements, light, heat, and / or sound. Multifunctional actuators can therefore reduce the number of actuators required in a system.

[0015] An example of a multifunctional actuator is an actuator that is set up to transmit torque to a handlebar as well as to output haptic signals.

[0016] A smart home appliance is a household device that can be controlled and monitored via the internet or a local network. These devices are equipped with sensors, actuators, and communication interfaces that allow interaction with the user or other devices. Smart home appliances include thermostats that regulate a home's heating and air conditioning, lighting systems, refrigerators, security cameras and door locks, washing machines and dryers, and similar items.

[0017] Computer program products typically comprise a sequence of instructions that, when the program is loaded, cause the hardware to perform a specific procedure that leads to a particular result.

[0018] Modern bicycles are equipped with various sensors and actuators to enhance the riding experience. This creates a need for a central control unit, a controller, that not only processes data from these sensors and actuators but is also capable of communicating with mobile devices. This enables expanded functionality and an improved user experience through direct feedback and control based on diverse data sources.

[0019] The basic idea of ​​the invention is to provide a control unit that includes multiple interfaces to bicycle sensors, bicycle actuators, and a mobile device, such as a smartphone, and is configured to receive communication signals from the mobile device and output suitable signals to inform the user about various events on the mobile device. The control unit includes an interface to one or more bicycle sensors, an interface to one or more bicycle actuators, and an interface to a mobile device, in particular a smartphone. The control unit is configured to receive data relating to the communication between the mobile device and a user and, based on this data, to determine suitable communication signals that inform the user about an event on the mobile device. These signals are output by means of an actuator.

[0020] The control unit is communicatively connected to the mobile device or smartphone and configured to display information from the smartphone as well as signaled events. It is conceivable that the control unit displays the type of event, such as incoming calls, messages, or appointments. For an incoming call, the control unit could display the caller's number. For incoming messages, the message text could be displayed on the control unit's screen or read aloud. In the case of appointments, the control unit could provide detailed information about the appointment, including the time, date, and any additional notes or reminders. Furthermore, it is conceivable that the control unit could display other information provided by the smartphone that might be relevant to the user.This comprehensive display of events and information allows the user to stay informed about important messages and events without having to directly operate the smartphone.

[0021] Advantageous designs and further developments result from the further sub-claims as well as from the description with reference to the figures in the drawing.

[0022] According to a preferred embodiment of the invention, the control unit comprises a human-machine interface (HMI) by means of which a mobile device connected to the control unit can be operated. This allows the user to control functions of the mobile device directly via the HMI of the control unit without having to operate the mobile device itself.

[0023] It is conceivable that the control unit could allow the user to accept, reject, or end calls. Furthermore, the control unit could manage the microphone muting during a call. It is also possible that the control unit could read aloud incoming messages and provide audible updates about appointments. In addition, it is conceivable that the control unit could activate or deactivate the smartphone's voice control. Finally, the control unit could also have the function of triggering an emergency call. This comprehensive control of smartphone functions by the control unit allows the user improved interaction with the smartphone without having to directly operate it.

[0024] According to a preferred embodiment of the invention, the actuator used to output communication signals is further configured to transmit torque directly or indirectly to a bicycle handlebar. This can be used to alert the user to events through slight handlebar movements or vibrations.

[0025] The actuator can be part of a steering system. It is conceivable that the actuator is designed as a servo actuator in a steering system, where it helps to support and optimize the steering forces.

[0026] In a steer-by-wire steering system, the actuator could also be used to transmit steering commands electronically and enable precise steering movements without the need for a mechanical connection between the steering wheel and the wheels.

[0027] Furthermore, the actuator could be designed as an actuator for a superimposed steering system, in which it makes minor corrections in addition to the conventional steering inputs of the driver in order to increase driving stability and safety.

[0028] This integration of the actuator into various types of steering systems improves the controllability and responsiveness of the bicycle and enhances overall safety and driving dynamics.

[0029] The interface to the smartphone allows data and control commands to be exchanged between the steering system and the smartphone in real time. This enables seamless integration of smartphone apps for navigation, driver assistance, and bicycle diagnostics into a steering system.

[0030] Riders can use their smartphone to customize settings for the steering system, such as steering sensitivity or preferred steering modes. These personalizations can be automatically loaded when the smartphone is connected to the bicycle.

[0031] According to a preferred embodiment of the invention, the actuator is designed and configured as a multifunctional actuator to output vibration signals, light signals, and / or audio signals. These signals can be used to alert the user to various types of events, e.g., vibrations for urgent notifications and audio signals for less urgent alerts. Accordingly, the actuator can provide the functionality of both a steering system actuator and an actuator for communication with a mobile device.

[0032] According to a preferred embodiment of the invention, the control unit comprises an interface to a smart home appliance and is configured to receive data relating to the communication between the appliance and a user. Based on this data, the control unit determines suitable communication signals that inform the user about an event of the appliance and outputs these signals by means of an actuator.

[0033] It is conceivable that the control unit could receive information about the status of household appliances such as washing machines, refrigerators, or heating systems. Furthermore, the control unit could allow the user to receive notifications about completed washing cycles, opened refrigerator doors, or changes in room temperature. In addition, it is possible for the control unit to inform the user about events such as an alarm system being activated or garage doors closing. This comprehensive integration of smart home functions into the control unit provides the user with a central platform for monitoring and controlling household appliances.

[0034] According to a preferred embodiment of the invention, the control unit comprises an interface to a ground sensor for receiving and evaluating ground-related data. Based on this ground-related data, the control unit determines control commands and transmits them to the actuator, for example, to adjust the bicycle's assistance level or to inform the user of changes in the ground.

[0035] It is conceivable that the actuator of a steering system uses this surface data to adjust the steering assistance based on the surface conditions. For example, in a power steering system, the actuator could increase the steering assistance when a slippery or uneven surface is detected to improve vehicle stability. In a steer-by-wire system, the actuator could adjust the steering sensitivity to enable more precise control on different surfaces such as sand, snow, or gravel. Furthermore, in a superimposed steering system, the actuator could make minor steering corrections to optimize handling on varying surfaces.

[0036] The present invention will be explained in more detail below with reference to the exemplary embodiments shown in the schematic figures of the drawings. These show: Fig. 1 A schematic block diagram of an embodiment of the invention.

[0037] The accompanying drawings are intended to provide a further understanding of the embodiments of the invention. They illustrate embodiments and, in conjunction with the description, serve to explain the principles and concepts of the invention. Other embodiments and many of the advantages mentioned will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale.

[0038] In the figures of the drawings, identical, functionally equivalent and equally effective elements, features and components - unless otherwise stated - are each provided with the same reference symbols.

[0039] Fig.Figure 1 shows a schematic block diagram of a control unit 10 with an interface 1 to a bicycle sensor 4, an interface 2 to a bicycle actuator 5, and an interface 3 to a mobile device 6, wherein the control unit 10 is configured to receive data relating to the communication between the mobile device 6 and a cyclist, and to determine suitable communication signals based on the data, which inform the user about an event of the mobile device, and to output them by means of an actuator. Reference sign 1 interface 2 Interface 3 Interface 4 bicycle sensors 5 bicycle actuator 6 mobile device 10 Control unit

Claims

[1] Control unit (10) for a bicycle with an interface (1) to one or more bicycle sensors (4), an interface (2) to one or more bicycle actuators (5), and with an interface (3) to a mobile device (6), in particular a smartphone, wherein the control unit is configured to receive data relating to the communication between the mobile device and a user, and based on the data to determine suitable communication signals that inform the user about an event of the mobile device and to output them by means of an actuator. [2] Control unit according to claim 1, wherein the control unit has a human-machine interface by means of which a mobile terminal connected to the control unit can be operated. [3] Control unit according to one of the preceding claims, wherein the actuator is further configured to output communication signals and to transmit a predetermined torque directly or indirectly to a bicycle handlebar. [4] Control unit according to claim 3, wherein the actuator is designed as a multifunctional actuator and is configured to output vibration signals and / or audio signals and / or light signals. [5] Control unit according to one of the preceding claims, which further comprises an interface to a smart home appliance and is configured to receive data relating to the communication between the appliance and a user, and to determine suitable communication signals based on the data which inform the user about an event of the appliance and to output them by means of an actuator. [6] Control unit according to one of the preceding claims, comprising an interface to a subsurface sensor to receive and evaluate subsurface-related data in order to determine control commands to the actuator based on the subsurface-related data. [7] Computer program product comprising commands that cause a hardware component of the control unit according to one of the preceding claims to receive data relating to the communication between the mobile device and a user, and, based on the data, to determine suitable communication signals that inform the user about an event of the mobile device and to output them by means of an actuator.