Method, clutch, vehicle transmission, drive unit and vehicle for theft prevention

Abstract

A method for anti-theft of a vehicle, particularly an electric bicycle, wherein the drive system of the vehicle has a clutch (200) comprising a first clutch component (210) and a second clutch component (220), the first clutch component and the second clutch component being arranged coaxially with each other and configured to be torsionally connected to each other in at least one predetermined rotational direction by mechanical contact, wherein the method comprises the steps of: detecting (110) a user's input for activating the anti-theft device, and manipulating (120) an actuator (240) according to the detected input, thereby moving the first clutch component (210) and / or the second clutch component (220) in an axial direction, thereby disengaging the mechanical contact between the first clutch component (210) and the second clutch component (220).

Description

Technical Field

[0001] This invention relates to a method for preventing theft of vehicles. The invention also relates to a clutch, particularly a freewheel, configured to perform the anti-theft method. Furthermore, the invention relates to a vehicle transmission mechanism having said clutch or freewheel and a drive unit having said clutch or freewheel. The invention further relates to a vehicle having a clutch or freewheel according to the invention and / or a vehicle having a vehicle transmission mechanism according to the invention and / or a vehicle having a drive unit according to the invention; the invention particularly relates to an electric bicycle as a vehicle. Background Technology

[0002] Locks are typically used to prevent vehicle theft. However, such vehicle locks, especially chain locks or ring locks for bicycles, are not well automated, are often dirty, bulky, and heavy to transport. Furthermore, vehicles can continue to operate normally even with the lock removed or damaged, thus necessitating alternative and / or additional solutions to prevent theft.

[0003] Document WO 2019 / 203644 A2 discloses a bicycle lock.

[0004] Document EP 3 431 685 A1 discloses a bicycle locking device and a locking method.

[0005] Document WO 2016 / 173804 A1 discloses an anti-theft device for bicycles.

[0006] Clutches are known in the prior art, such as clutches with axial claw-shaped clutch teeth.

[0007] In this application, a freewheel is understood as a specific embodiment of a clutch. As a clutch, the freewheel can only transmit torque in a predetermined direction of rotation. In the event of a reversal of the direction of rotation, or when the rotational speed of the component to be driven is greater than that of the component driving the drive, the connection for force transmission is automatically disengaged. The component driving the drive is, for example, a bicycle pedal axle, and the component to be driven is the rear wheel or a driven pinion, wherein the driven pinion is particularly connected to the bicycle pedal axle. Known freewheels can have, for example, clamping rollers, clamping bodies, pawls, pawl rings, and / or coil springs. Pawl freewheels are generally known for the clicking noise during operation. Freewheels can also be configured as disc-type freewheels, wherein two annular discs are arranged side-by-side in the axial direction. The annular discs of a disc-type freewheel typically also have teeth on one side that are wedge-shaped in the circumferential direction and shaped in the axial direction. The two discs are configured to engage with each other in a predetermined direction of rotation by means of the teeth and thus transmit torque. The freewheel is supported or fixed to one of the gears by interlocking mechanical contacts due to spring force in the axial direction. The circumferentially wedge-shaped teeth of the freewheel operate away from each other in the opposite direction of rotation. The rider freewheel of a bicycle allows the rider to rotate the pedals, for example, in reverse, because when the pedals rotate backwards, or when the freewheel rotates against a predetermined direction of rotation, the force-locking and / or form-locking for torque or force transmission within the freewheel is interrupted. Typically, an electric bicycle generates a motor torque for force assistance to the rider, for example, based on a detected rider torque. The rider freewheel in an electric bicycle prevents the pedals from rotating together during operation (e.g., during the operation of the push-assist device and / or in short periods of subsequent rotation of the electric motor during normal operation). For example, subsequent rotation of the pedals is caused by the motor torque generated for force assistance to the rider in the absence of the rider freewheel, because the motor torque typically only decreases to zero shortly after the rider stops applying force to the pedals. Therefore, in electric bicycles, the driver's freewheel is very frequently arranged as a clutch between the pedal shaft and the electric motor, which is arranged as a drive motor to assist the driver, especially when the electric motor is arranged near the pedal shaft or in the so-called intermediate motor position. Summary of the Invention

[0008] The objective of this invention is to improve the anti-theft performance of electric bicycles.

[0009] According to the present invention, the above-described tasks are solved in accordance with independent claims 1, 7, 12, 13 and 14.

[0010] The present invention relates to a method for preventing theft of a vehicle, wherein the drive system of the vehicle has a clutch, wherein the clutch is in particular a freewheel and particularly preferably a disc-type freewheel.

[0011] The clutch according to the invention comprises a first clutch component and a second clutch component, which are arranged coaxially with each other. Thus, the first clutch component is particularly a first freewheel component, and the second clutch component is particularly a second freewheel component. The first and second clutch components are configured to engage mechanically disengaged. Mechanical contact is generated, in particular, by a spring force acting axially on the first or second clutch component and in the direction toward the respective other clutch component. The first and second clutch components each comprise, in particular, annular toothed discs, wherein each disc advantageously has teeth distributed circumferentially and projecting axially, wherein the teeth are particularly preferably wedge-shaped. Each disc is advantageously configured to engage with the other disc by means of the teeth and form a disengaged mechanical contact. If the clutch is a freewheel, mechanical contact is advantageously formed by the interlocking of the circumferentially arranged teeth of the two discs in a predetermined direction of rotation to transmit torque in that direction, wherein the teeth are particularly wedge-shaped. Advantageously, the first and / or second clutch components are also configured to be coaxially arranged about an axis and guided via this axis by at least one groove of the first and / or second clutch components, wherein the axis is, in particular, a pedal axle of a bicycle, the pedal axle advantageously having at least one track for guiding the first and / or second clutch components, the at least one track being arranged radially outside the axis and extending axially on the outside of the axis. In other words, the first and / or second clutch components are thus configured, particularly by means of the groove, to be guided via the track of the axis in the axial direction of the axis. The first and second clutch components are configured by mechanical contact for torsionally engaging each other in at least one predetermined direction of rotation. If the clutch is a freewheel, the first and second clutch components, or freewheel components, are configured to engage each other in a manner that allows them to rotate freely relative to each other when rotating against the predetermined direction of rotation. Advantageously, the clutch is also configured to connect the shaft of the drive system to a hollow shaft arranged coaxially around the shaft in a torsionally resistant manner, particularly at least in a predetermined direction of rotation, wherein a first clutch component is configured to be torsionally connected to the shaft and a second clutch component is configured to be torsionally connected to the hollow shaft.

[0012] The method according to the invention includes detecting a user's input for activating the anti-theft device. Subsequently, in another step, an actuator is operated based on the detected input for activating the anti-theft device, thereby causing the first clutch component and / or the second clutch component to move axially. This disengages the disengageable mechanical contact between the first and second clutch components, particularly the interlocking of the wedge-shaped teeth of the disengagement wheel's sprocket. Advantageously, after operating the actuator, no torque can be transmitted from the first clutch component to the second clutch component. This results in the advantage that, with the anti-theft device activated, the vehicle driver and / or the vehicle's motor can no longer transmit force or torque to the drive wheels. Therefore, theft or undesirable removal of the vehicle is advantageously made difficult by the method described above.

[0013] In one configuration, the user's input for activating the anti-theft device is detected by detecting the removal of the human-machine interface (HMI) or display device from the vehicle's HMI bracket, or by detecting the removal of the key from the vehicle's lock, or by detecting the spatial distance between the key and the vehicle, or by detecting the spatial distance between the mobile computing unit (especially a smartphone) and the vehicle. After detecting the user's input, advantageously, an electric or electromagnetic locking signal is generated using the HMI and / or bracket and / or controller and / or key and / or mobile computing unit, configured to induce operation of an actuator. With this configuration, the anti-theft device is advantageously, simply, conveniently, and automatically activated by the vehicle's user or driver without requiring additional input steps.

[0014] In an extended embodiment of the invention, the method can be configured to include detecting another input from the user for disabling the anti-theft device after operating the actuator. Advantageously, this other user input is detected by detecting the positioning or arrangement of the human-machine interface (HMI) on the vehicle's HMI mount, or by detecting the placement of the key in the vehicle's lock, or by detecting the key's spatial proximity to the vehicle, or by detecting the spatial proximity of a mobile computing unit (especially a smartphone) to the vehicle. Furthermore, after detecting the other user input, it is advantageous to generate an electrical or electromagnetic unlocking signal via the HMI and / or mount and / or controller and / or key and / or mobile computing unit, which is configured to induce operation of the actuator. The unlocking signal is transmitted to the computing unit, particularly in encrypted form. Furthermore, the unlocking signal particularly represents an identification code to the HMI and / or key and / or mobile computing unit. Subsequently, in this extended scheme, the actuator is operated according to another input detected for disabling the anti-theft device, thereby causing the first clutch component and / or the second clutch component to move axially and engage mechanically with each other (especially by means of teeth), or mechanically connected in at least one rotational direction for torque transmission. Specifically, operating the actuator according to another input detected for disabling the anti-theft device causes the circumferentially wedge-shaped teeth of the freewheel to engage with each other. Thus, torque transmission is achieved by means of the freewheel in a predetermined rotational direction. This extended scheme yields the advantage of automatically disabling the anti-theft device by the vehicle user or driver simply and conveniently without additional input steps.

[0015] In a preferred embodiment of the invention, the adjusting gear is rotated by operating an actuator to activate the anti-theft device, wherein the actuator is particularly an electric motor. The electric motor is advantageously configured to rotate the adjusting gear, which is torsionally connected to the rotor. The adjusting gear engages with the teeth of a helical element. The helical element is arranged coaxially with the shaft of the drive system. The helical element advantageously has external teeth as its teeth, wherein the external teeth are particularly spur teeth. The helical element also has threads, particularly external threads. The helical element is moved axially by the rotating adjusting gear engaging with the teeth and by means of the thread twisting relative to a fixed corresponding thread. The helical element also includes a mechanical stop. During the rotation or axial movement of the helical element, the helical element moves the first clutch component and / or the second clutch component axially by means of the mechanical stop. This advantageously disengages the mechanical contact between the first clutch component and the second clutch component.

[0016] In an alternative embodiment of the invention, the first clutch component and / or the second clutch component are magnetized. Furthermore, the actuator in this embodiment includes a coil. Through the manipulation, a magnetic field is generated by the coil, which acts on the magnetized first clutch component and / or the magnetized second clutch component. In this embodiment, the first clutch component and / or the second clutch component are moved and the mechanical contact between the first clutch component and the second clutch component is disengaged by the magnetic force generated based on the magnetic field. This embodiment offers the advantage that disengagement of the mechanical contact between the first clutch component and the second clutch component can be achieved very quickly and without wear. Furthermore, this embodiment advantageously has a relatively small structural space for the actuator.

[0017] In another embodiment of the invention, the actuator is configured to position a pin in a slot by the operation, the slot being arranged on the periphery of the clutch and between a first clutch component and a second clutch component. The pin, positioned in the slot by means of the actuator, is guided through the slot during clutch rotation, wherein the slot has a narrowing portion.

[0018] When the clutch rotates, particularly in a predefined direction of rotation, it is configured to move the first clutch component and / or the second clutch component in the axial direction by means of a pin and a constriction. This disengages the mechanical contact between the first and second clutch components. This embodiment offers the advantage that the disengagement of the mechanical contact between the first and second clutch components can be achieved with fewer components and a very small structural space.

[0019] The invention also relates to a clutch, wherein the clutch is in particular a freewheel and particularly preferably a disc-type freewheel. The clutch includes at least one first clutch component and a second clutch component. The first and second clutch components are arranged coaxially with each other and configured to be torsionally connected in at least one predetermined rotational direction by a disengageable mechanical contact between the first and second clutch components. Preferably, the first and second clutch components are freely rotatable relative to each other when rotating against the predetermined rotational direction, such that the clutch is a freewheel. The clutch also has an actuator, wherein the actuator is configured to move the first and / or second clutch components axially when an anti-theft device is activated, thereby disengaging the mechanical contact between the first and second clutch components. Advantageously, the first and / or second clutch components are arranged to be guided on a shaft of the vehicle's drivetrain. Furthermore, the clutch is advantageously configured to torsionally connect the drivetrain shaft to a hollow shaft arranged coaxially around this shaft in the predetermined rotational direction. The clutch has the advantage of being able to generate or disengage reliable mechanical contact between the first and second clutch components, thereby ensuring torque transmission via the clutch when the anti-theft device is deactivated. Furthermore, based on activating the anti-theft device by manipulating the actuator, torque transmission via the clutch can be prevented, thus providing reliable anti-theft protection, since the vehicle is advantageously no longer able to move or operate independently when the anti-theft device is deactivated.

[0020] In an optional configuration, the clutch can have a computing unit. This computing unit is configured to receive an electrical or electromagnetic unlocking signal. Furthermore, the computing unit is configured to manipulate an actuator to generate the mechanical contact based on the received unlocking signal, wherein the unlocking signal specifically represents an identification code. This optional configuration provides the advantage that the anti-theft device can be automatically deactivated by the vehicle user or driver simply and conveniently, without requiring additional input steps.

[0021] In a preferred configuration, the clutch actuator comprises an electric motor. The rotor of the electric motor is torsionally connected to an adjusting gear. The adjusting gear engages with the teeth of a helical element and is configured to rotate relative to a fixed corresponding thread by means of a thread and to move in the axial direction. The corresponding thread is advantageously fixed to the housing of the vehicle transmission mechanism or the housing of the drive unit and / or the vehicle frame, making it advantageously partially fixed. The helical element has a mechanical stop configured to allow axial movement of the first clutch component and / or the second clutch component. With this clutch configuration, the mechanical contact between the first and second clutch components can be reliably disengaged in the axial direction when the anti-theft device is activated. This clutch configuration has the technical advantage that the resulting vehicle anti-theft device is robust against shocks and external or internal magnetic fields, resulting in high reliability and durability.

[0022] Preferably, the clutch also includes an optional spring element. The spring element is configured to generate a spring force that acts axially on the first clutch component and toward the second clutch component, or axially on the second clutch component and toward the first clutch component. This embodiment offers the advantage of preventing accidental activation of the anti-theft device and simplifying its deactivation. Furthermore, this embodiment advantageously provides reliable mechanical contact between the first and second clutch components when the anti-theft device is deactivated, thereby ensuring torque transmission via the clutch in a predetermined rotational direction when the anti-theft device is deactivated.

[0023] In another configuration, the first clutch component and / or the second clutch component are magnetized. Furthermore, the actuator in this configuration includes a coil configured to generate a magnetic field when the anti-theft device is activated. This magnetic field acts on the magnetized first clutch component and / or the magnetized second clutch component, causing the first clutch component and / or the second clutch component to move axially due to the magnetic force of the magnetic field. This configuration advantageously produces a compact clutch with low wear and low maintenance.

[0024] In another configuration, the actuator, when the anti-theft device is activated, is configured to position a pin in a groove arranged on the periphery of the clutch and between a first clutch component and a second clutch component. The groove is configured to guide the pin during clutch rotation, wherein the groove has at least one narrowing portion in the direction toward one of the clutch components. When the clutch rotates, particularly in a predetermined direction of rotation, the clutch is configured to move the first clutch component and / or the second clutch component axially by means of the pin and the narrowing portion. This advantageously disengages the mechanical contact between the first clutch component and / or the second clutch component. This configuration advantageously produces a compact and efficient clutch.

[0025] The present invention also relates to a vehicle transmission mechanism having a clutch according to the invention.

[0026] The present invention also relates to a drive unit for a vehicle having a clutch according to the invention, particularly a drive unit for an electric bicycle.

[0027] The present invention also relates to a vehicle having a clutch according to the invention, wherein the clutch is particularly preferably configured as a freewheel, and / or a vehicle having a vehicle transmission mechanism according to the invention and / or a drive unit according to the invention, the vehicle being particularly an electric bicycle. Attached Figure Description

[0028] Further advantages will become apparent from the following description of the embodiments with reference to the accompanying drawings.

[0029] Figure 1 The flowchart of the method is shown as a block diagram;

[0030] Figure 2 A drive unit with a toothed disc clutch containing a helical element;

[0031] Figure 3 A drive unit with a toothed disc clutch with a coil;

[0032] Figure 4 A drive unit with a toothed disc clutch equipped with a pin actuator;

[0033] Figure 5a The first clutch component, acting as the free wheel of the clutch;

[0034] Figure 5b The first clutch component of the clutch. Detailed Implementation

[0035] exist Figure 1The flowchart shown is a block diagram of the method. In the first step 110, a user input for activating the vehicle's anti-theft device is detected. In step 110, as the user input for activating the anti-theft device, it is preferably detected that the display device or human-machine interface is removed from the vehicle's mounting bracket. Subsequently, in the second step 120, the actuator is operated according to the detected user input. In the second step 120, the actuator is operated to move the first clutch component and / or the second clutch component of the clutch in the axial direction, wherein the first clutch component and the second clutch component are arranged coaxially with each other. The clutch is in particular a freewheel. Therefore, the first clutch component is in particular a first freewheel component, and the second clutch component is in particular a second freewheel component. The mechanical contact between the first clutch component and the second clutch component is disengaged by the second step 120. In an optional third step 130, another user input for deactivating the anti-theft device is detected. Subsequently, in an optional fourth step 140, the actuator is operated according to the detected other input for deactivating the anti-theft device. In step 140, by manipulating the actuator, the first clutch component and / or the second clutch component are moved back in the axial direction, and the first clutch component and the second clutch component are mechanically engaged with each other again. In an optional fourth step 140, the mechanical contact can be generated by the spring force acting in the axial direction of an optional spring element. In other words, in the fourth step 140, it can be configured that the actuator is manipulated to move the first clutch component and / or the second clutch component in the axial direction, so that the spring force presses the first clutch component or the second clutch component against the corresponding other clutch component.

[0036] In the appendix Figures 2 to 4The diagram shows a drive unit 270 of an electric bicycle, which has a disc clutch, particularly a disc freewheel, serving as a clutch 200 on the pedal axle. The clutch 200 in the drive unit 270 will be described first. The clutch 200 includes a first disc as a first clutch component 210 and a second disc as a second clutch component 220. In these embodiments, the first clutch component 210 and the second clutch component 220 are arranged side-by-side and are respectively annular. The first clutch component 210, or the first disc, and the second clutch component 220, or the second disc, are arranged coaxially with each other and coaxially around the pedal axle. The pedal axle, as the drive shaft 271, has a track 272 projecting axially on its outer surface. The first clutch component 210 has a number of slots 211 corresponding to the number of tracks 272. The slots of the first clutch component are configured to surround the tracks 272 of the shaft 271. The first clutch component 210 is torsionally connected to the shaft 271 by means of the slots 211 and the tracks 272 and is configured to be guided in the axial direction. The second clutch component 210 is torsionally connected to the hollow shaft 275, which is also arranged coaxially with the shaft 271. The first clutch component 210 and the second clutch component 220 are also configured to mechanically disengage into contact with each other. However, the mechanical contact is preferably not necessarily caused by a spring force acting on the first clutch component 210 in the axial direction toward the second clutch component 220, wherein the spring force is generated by means of an optional spring element 290. The optional spring element 290 is preferably clamped between the housing 280 of the drive unit 270 and the first clutch component 210. The first clutch component 210, or the first gear, and the second clutch component 220, or the second gear, each have a large number of axially projecting teeth that are advantageously evenly distributed in the circumferential direction of the respective gear, wherein the teeth are wedge-shaped, particularly in the circumferential direction of the respective gear. Therefore, the first clutch component 210, or the first gear, and the second clutch component 220, or the second gear, are configured to engage with each other, especially when the optional spring element 290 presses the first and second gears toward each other. The engagement of the circumferentially distributed teeth of the two gears advantageously forms a mechanical contact to transmit torque in a predetermined direction of rotation. The first clutch component 210 and the second clutch component 220 are configured by the preferred wedge-shaped configuration of the teeth to be torsionalally connected to each other in the predetermined direction of rotation and to be able to rotate freely relative to each other when rotating against the predetermined direction of rotation.

[0037] exist Figure 2The diagram shows a drive unit 270 with a clutch 200, wherein the clutch 200 in this embodiment has a helical element 230 and an adjusting motor as an actuator 240. The helical element 230 is a hollow shaft arranged coaxially with the pedal shaft. Advantageously, the helical element 230 is at least partially arranged outside the first clutch component 210, the second clutch component 220, the shaft 271, and the hollow shaft 275. The helical element 230 includes an external thread as a thread 231, which engages in a corresponding thread 281. The corresponding thread 281 is an internal thread, such as an internal thread in a drilled hole. The corresponding thread 281 is fixedly, or rather, torsionally fixed, to the housing 280 of the drive unit 270. The helical element 230 also includes external teeth as teeth 232 on its outer surface, wherein the external teeth are straight and oriented in the circumferential direction. The rotor of the regulating motor 240 is torsionally connected to a spur gear 249, which engages with the teeth 232 of the helical element 230. In other words, the regulating motor 240, acting as an actuator, is configured to twist or rotate the helical element 230 relative to the corresponding thread 281, thereby causing the helical element 230 to move axially relative to the corresponding thread 281 and thus also relative to the shaft 271. The helical element 230 also includes a mechanical stop 233, or a driving element, on the inner surface of the hollow shaft. This mechanical stop 233 is configured to move or drive the first clutch component 210 axially relative to the second clutch component 220 when the helical element 230 moves axially. During the axial movement of the first clutch component 210, it is guided axially by means of the groove 211 of the first clutch component 210 and the track 272 of the shaft 271. Through this axial movement, the teeth of the gear disc, or the first and second clutch elements, are no longer engaged with each other. In other words, the mechanical contact between the first clutch element 210 and the second clutch element 220 is disengaged by axial movement. This interrupts torque transmission between the first clutch element 210 and the second clutch element 220 and activates the anti-theft device. If the clutch is a freewheel, torque transmission is interrupted particularly in a predetermined direction of rotation.

[0038] exist Figure 3Again shown is a drive unit 270 having a disc clutch (especially a disc freewheel) as a clutch 200, wherein the clutch 200 in this embodiment has at least one coil 241 as an actuator 240. In this embodiment, the first clutch component 210 is magnetized. By manipulation 120, an electric current flows through the coil 241, causing a magnetic field to be generated by means of the coil 241. The magnetic field acts on the magnetized first clutch component 210, thereby generating a magnetic force that causes the first clutch component 210 to move axially along the track 272 of the shaft 271, thereby disengaging the mechanical contact between the first clutch component 210 and the second clutch component 220. The axial movement of the first clutch component 210 can also be limited by means of a mechanical stop 273 on the shaft 271. When the anti-theft device is activated, the mechanical stop 273 can also have surface contact with the first clutch component 210, the surface contact being configured to couple the magnetized first clutch component 210 to the mechanical stop 273 of the shaft or to hold it in place until the anti-theft device is deactivated and thus maintain the separation of the mechanical contact between the first clutch component 210 and the second clutch component 220 in the absence of current. Preferably, after another input for deactivating the anti-theft device is detected in step 140, the first clutch component 210 is returned to its original position by re-operating the coil 241, which is the actuator 240, wherein the direction of current flow in the coil 241 is reversed or the polarity of the generated magnetic field is changed compared to the operation for activating the anti-theft device.

[0039] exist Figure 4The image again shows a drive unit 270 having a disc clutch (especially a disc freewheel) as a clutch 200, wherein the clutch 200 in this embodiment has a cylindrical magnet or a lift magnet as an actuator 240. The actuator 240 in this embodiment is configured to, by manipulation 120, position a cylindrical pin 242 arranged radially relative to the clutch 200 in a groove 243, which is arranged on the periphery of the clutch 200 and between a first clutch component 210 and a second clutch component 220. A first edge surface 244 of the groove 243 is formed by the first clutch component 210, while a second edge surface of the groove 243 is advantageously formed by the second clutch component 220, wherein the second edge surface of the groove 243 runs straight along the periphery, and the second clutch component 220 is immovable relative to the shaft 271. The groove 243 has at least one narrowing or bending portion on the first edge surface 244 along the circumference, the bending portion pointing towards the second edge surface of the groove 243. As the clutch 200 rotates, the pin 242 is guided through the groove 243 to the narrowing portion. Upon reaching this point, the pin is guided along the first edge surface 244; however, the groove 243 is narrower than the diameter of the pin 242, thereby generating a force acting axially on the first and second clutch components 220. Since the second clutch component 220 is axially immovable, the first clutch component 210 moves axially away from the second clutch component. This disengages the mechanical contact between the first clutch component 210 and the second clutch component 220. As the clutch rotates further in a predetermined direction of rotation, the pin 242 is positioned relative to the first clutch component 210 on another surrounding edge 245, wherein the pin 242 is positioned particularly radially deeper between the first clutch component 210 and the second clutch component 220 and guided between the surrounding edge 245 and the second edge surface of the groove 243. To deactivate the anti-theft device, the pin 242 is pulled or positioned radially toward the actuator and outside the surfaces of the first clutch component 210 and the second clutch component 220.

[0040] exist Figure 5a A preferred embodiment of a first clutch component 210, which is a toothed freewheel clutch 200, is shown. The first clutch component 210 is a toothed disc or annular disc and has a plurality of straight grooves 211 on its inner periphery that run axially. The annular first clutch component 210 is configured to be guided axially by means of the grooves 211 on its inner periphery and by means of a track 272 on a shaft 271. The first clutch component 210 is also configured to be mechanically disengaged from or connected to a second clutch component 220. The first clutch component 210 has a large number of axially projecting, wedge-shaped teeth 510 that are evenly distributed in the circumferential direction of the toothed disc. Figure 5aThe first clutch component 210 is configured to transmit torque in a predetermined rotational direction about the central axis 550 when it is in mechanical contact or engagement with the corresponding second clutch component 220, and to be rotatably connected to the second clutch component 220 when rotating in the opposite direction of the predetermined rotation.

[0041] exist Figure 5b The first clutch component 210 of the clutch 200 is shown. (The text abruptly ends here.) Figure 5b In contrast, the first clutch component 210 has a large number of axially projecting teeth 520 evenly distributed in the circumferential direction of the gear disc. These teeth are implemented in an arc shape and, in particular, are not wedge-shaped. According to... Figure 5b The first clutch component 210, when mechanically contacting or engaging with the corresponding second clutch component 220, is configured to transmit torque in each of the two rotational directions around the central axis 550 of the first clutch component to the engaging second clutch component 220. Furthermore, according to... Figure 5b The first clutch component 210 and in Figure 5a Both have a straight groove 211 on the inner periphery that runs in the axial direction.

Claims

1. A method for preventing theft of a vehicle, wherein, The vehicle's drive system has a clutch (200) comprising a first clutch component (210) and a second clutch component (220), the first clutch component and the second clutch component being arranged coaxially with each other and configured for torsionally engaging each other via a disengageable mechanical contact, wherein the method includes the following steps: • Detect the user's input (110) to activate the anti-theft device, and • The actuator (240) is manipulated according to the detected input, thereby moving the first clutch component (210) and / or the second clutch component (220) in the axial direction to disengage the mechanical contact between the first clutch component (210) and the second clutch component (220), wherein the first clutch component (210) and the second clutch component (220) are respectively configured as annular toothed discs.

2. The method according to claim 1, wherein, The user's input for activating the anti-theft device is detected by detecting the removal of the display device from the bracket of the vehicle for the display device (110).

3. The method according to claim 1 or 2, wherein, After manipulating the actuator, perform the following steps: • Detect another input (130) from the user for disabling the anti-theft device, and • The actuator (240) is operated according to another input detected for disabling the anti-theft device, thereby moving the first clutch component (210) and / or the second clutch component (220) in the axial direction and bringing the first clutch component (210) and the second clutch component (220) into mechanical contact with each other.

4. The method according to claim 1 or 2, wherein, The actuator (240) is used to rotate the adjusting gear (249), which engages with the teeth (232) of the helical element (230), wherein the helical element has a thread (231) and a mechanical stop (233), wherein the helical element (230) is twisted relative to a fixed corresponding thread (281) and moves in the axial direction by means of the rotation generated by the thread (231), wherein the moving helical element (230) causes the first clutch component (210) and / or the second clutch component (220) to move in the axial direction by means of the mechanical stop (233) of the helical element (230).

5. The method according to claim 1 or 2, wherein, The first clutch component (210) and / or the second clutch component (220) are magnetized, and the actuator (240) includes a coil (241) wherein a magnetic field is generated by means of the coil (241) during the operation, the magnetic field acting on the magnetized first clutch component (210) and / or the magnetized second clutch component (220), wherein the combined magnetic force causes the first clutch component (210) and / or the second clutch component (220) to move in the axial direction and disengage the mechanical contact between the first clutch component (210) and the second clutch component (220).

6. The method according to claim 1 or 2, wherein, The actuator (240) is configured to position a cylindrical pin (242) in a groove (243) by means of the operation (120), the groove being arranged on the periphery of the clutch (200) and between the first clutch component (210) and the second clutch component (220), wherein the pin (242) positioned in the groove (243) is guided through the groove (243) when the clutch (200) rotates, wherein the groove (243) has a narrowing portion (244), wherein the clutch (200) is configured to move the first clutch component and / or the second clutch component in the axial direction by means of the pin (242) and the narrowing portion (244).

7. The method according to claim 6, wherein, The clutch (200) is configured to move the first clutch component and / or the second clutch component in the axial direction by means of the pin (242) and the narrowing portion (244) when the clutch (200) rotates in a predetermined rotational direction.

8. A clutch (200) for a vehicle, wherein, The clutch (200) includes at least the following components: • A first clutch component (210) and a second clutch component (220), the first clutch component and the second clutch component being arranged coaxially with each other and configured to be torsionally connected by a disengageable mechanical contact between the first clutch component (210) and the second clutch component (220) when the clutch (200) rotates in at least one predetermined rotational direction, and • Actuator (240), wherein the actuator (240) is configured to move the first clutch component (210) and / or the second clutch component (220) in the axial direction to disengage the mechanical contact between the first and second clutch components (210, 220), wherein the first clutch component (210) and the second clutch component (220) are respectively constructed as annular toothed discs.

9. The clutch according to claim 8, wherein, The clutch (200) is a freewheel.

10. The clutch according to claim 8, wherein, The clutch (200) includes the following components: • A computing unit, wherein the computing unit is configured to, i. Receives an electrical or electromagnetic unlocking signal, and ii. The actuator (240) is manipulated according to the received unlock signal to generate the mechanical contact.

11. The clutch according to claim 10, wherein, The signal represents an identification code.

12. The clutch according to any one of claims 8 to 11, wherein, • The actuator (240) has an adjusting motor, wherein the rotor of the adjusting motor is torsionally connected to an adjusting gear (249), wherein the adjusting gear (249) engages in the teeth of a helical element (230), wherein the helical element (230) is configured to rotate and move in the axial direction by means of a thread (231) relative to a fixed corresponding thread (281), wherein the helical element (230) has at least one mechanical stop (233) configured to move the first clutch component (210) and / or the second clutch component (220) in the axial direction.

13. The clutch according to any one of claims 8 to 11, wherein, The first clutch component (210) and / or the second clutch component (220) are magnetized, and the actuator (240) includes a coil (241) configured to generate a magnetic field that acts on the magnetized first clutch component (210) and / or the magnetized second clutch component (220).

14. The clutch according to any one of claims 8 to 11, wherein, The actuator (240) is configured to position a pin (242) in a groove (243) arranged on the periphery of the clutch (200) and between the first clutch component (210) and the second clutch component (220), wherein the groove (243) is configured to guide the pin (242) when the clutch (200) rotates in the predetermined rotational direction, wherein the groove (243) has a narrowing portion in a direction toward one of the clutch components (210, 220), wherein when the clutch (200) rotates in the predetermined rotational direction, the clutch (200) is configured to move the first clutch component and / or the second clutch component in the axial direction by means of the pin (242) and the narrowing portion (244).

15. A vehicle transmission mechanism having a clutch (200) according to any one of claims 8 to 14.

16. A drive unit (270) for a vehicle having a clutch (200) according to any one of claims 8 to 14.

17. The drive unit (270) according to claim 16, wherein, The vehicle in question is an electric bicycle.

18. A vehicle having a clutch (200) according to any one of claims 8 to 14 and / or having a vehicle transmission according to claim 15 and / or having a drive unit (270) according to claim 16 or 17.

19. The vehicle according to claim 18, wherein, The vehicle in question is an electric bicycle.

Images