DE202018106867U1 - Safety device for a hand-held and electrically assisted vehicle such as a stroller with a radio link - Google Patents

Abstract

Safety device (1) for a hand-guided and electrically assisted vehicle (3) such as a stroller, with a human / machine interface (5), by means of the control commands (7) of a person (9) for controlling a driving state of the vehicle (3) detectable are,
- A communication means (11) by means of which the control commands (7) from the man / machine interface (5) to a driving state adjusting control device (13) can be forwarded, characterized in that the communication means (11) has a radio link (15) for wireless transmission of the control commands (7).

Description

Field of the invention

The invention relates to a safety device for a hand-held and electrically assisted vehicle, with a human / machine interface, by means of the control commands of a person for controlling a driving state of the vehicle can be detected and a communication means, by means of which the control commands from the man / machine interface a control device providing the driving state can be forwarded, a hand-held vehicle having a safety device and a mobile transceiver device communicating with the vehicle.

State of the art

Hand-guided vehicles such as strollers and safety devices provided for this purpose are known. In mechanical embodiments, these can have mechanically operated parking brakes based on adhesion and / or positive locking to prevent unintentional rolling away. In addition, hand-held stroller are known, which facilitate by means of an auxiliary power source pushing and / or steering the stroller. To save energy can be used as a brake and, where appropriate, to recover energy in a downhill drive. From the WO 2014 040731 A1 is a hand-held vehicle known as a stroller with at least three wheels. Of the three wheels, at least one wheel can be driven by means of a hub motor. The one drivable wheel is steerable by means of a steering device with a steering motor with stator and rotor. Characterized in that the rotor of the steering motor is fixed to the chassis and the stator is rotatable with the drivable wheel relative to the chassis, a hand-held vehicle is provided with a compact steerable drive, which is easily replaceable and retrofittable. Downhill, the vehicle is braked to recover energy. A steering of the driven wheel via a steering device, for which the action of a driver is detected on a handle for manually guiding the vehicle.

Presentation of the invention

Based on this prior art, an object of the invention is to increase a safety of a hand-held and electrically assisted vehicle, in particular a baby carriage, in particular to improve operational safety, theft security and / or operating safety.

The object is in a safety device for a hand-held and electrically assisted vehicle such as a stroller, with a man / machine interface, by means of the control commands of a person for controlling a driving condition of the vehicle, in particular stroller, can be detected, a communication means by which the control commands can be forwarded from the human / machine interface to a control device which places the driving state, achieved in that the communication means has a radio link for the wireless transmission of the control commands. The radio link can be established interference-proof than a wired route. In particular, it is conceivable to use the radio link advantageous in collapsible vehicles such as strollers. Possible fatigue fractures of a wired route due to frequent folding and unfolding of the stroller and / or other unwanted mechanical effects on a corresponding wiring can be avoided. In addition, a cost for a concealed cable management can be avoided, with the same outer dimensions a more stable chassis of the vehicle or stroller can be realized, which also contributes to an increase in safety.

In a preferred exemplary embodiment, a mobile transceiver device that can be carried by the person is connected or at least switchable into the radio link. In this constellation, different data flows are conceivable. In a first alternative, all data required for controlling the driving state can first be received by the mobile transmitting / receiving device, optionally buffered by it and / or further processed and forwarded therefrom to the control device and / or actuating device that sets the driving state or can be forwarded. As a result, in particular an operating safety of the vehicle, in particular pushchair, can be increased, because if necessary, additional operating steps and / or checks can be carried out by the person via the transmitting / receiving device. According to a further alternative, this can also increase theft security. Optionally, the mobile transmitting / receiving device may be connected in the radio link, that without this operation of the vehicle is not possible or at least significantly more difficult. In the case of theft, it is possible that without the appropriately configured and / or programmed transceiver, the rest of the safety device is switched so that an electrically assisted operation of the vehicle is not possible and / or a hand-held operation also impossible or at least significantly more difficult is. This makes theft unattractive and thus increases theft security. According to a further alternative, it is conceivable that all commands for setting the driving state, ie the communication between the actual human / machine interface and the driving state adjusting control device runs on a directly established radio link. For example, the man-machine interface may include a handle equipped with sensors that may be handled by a person pushing the vehicle. The control device may, for example, provide or regulate an auxiliary power flow for driving the vehicle. In addition, this can set a steering angle for driving on curves by means of the vehicle, for example on one or two front wheels. A corresponding communication between the human / machine interface and the mobile transmitting / receiving device runs in particular such that an activation of the control device only takes place if an enabled and / or appropriately programmed and / or set up transceiver carried by the person and in the proximity of the vehicle is brought or brought. It is conceivable that a corresponding command to unlock in the presence of the transmitting / receiving device is automatically generated. A corresponding communication can take place by means of a corresponding protocol, for example near field communication, in particular in the case of a direct wireless network connection, known under direct WIFI, a Bluetooth standard and / or the like. Preferably, a determination of a distance of the transmitting / receiving device to the vehicle, in particular stroller, in particular to the man-machine interface of the stroller and / or vehicle and automatically depending on the activation and / or blocking of the driving state-related control devices. According to a further alternative, the activation of the vehicle, in particular stroller for a steered and / or propulsion-supported operation of the vehicle, in particular stroller by means of an additional operator input to the mobile transceiver by the person. By means of the transmitting / receiving device so an additional operator input from the person to unlock processable. In this embodiment, a corresponding control command for unlocking at the transmitting / receiving device can be entered by the person.

A further possibility provides that a chassis of the vehicle can be blocked and / or switched off if a signal strength between the transceiver and the control device and / or a distance between the mobile transceiver and the control device meet a predetermined or predeterminable condition. In particular, if the distance is too large and / or the signal strength is too small, be changed into a so-called fail-safe state in which on the one hand a driving condition is taken, in which a child sitting in the stroller is not endangered and / or a theft of the baby carriage is the best possible preventable. In particular, it is a standstill of the stroller, in particular an activation of a parking brake, so that the stroller is secured stand still. If the stroller is in motion, may alternatively or additionally be provided that a gentle and safe braking is done until the baby carriage. In addition, it is conceivable to predetermine a steering angle which is unsuitable for straightforward travel of the vehicle, in particular a pushchair, in the fail-safe state. As a result, undesired rolling away is prevented or preventable and / or possible manual and abusive shifting of the vehicle is prevented or prevented in the best possible way. In particular, the steering angle which can be preset in the case of the fulfilled conditions is approximately 90 degrees, in particular between 80 and 100 degrees.

In addition, it is preferably conceivable that at least one wheel of the chassis can be blocked depending on the condition. Under lockable can be understood that the wheel is very difficult or impossible to turn. In this case, therefore, the function of a parking brake can be realized so that the vehicle or the stroller, especially on sloping terrain, can not roll away on its own. In addition, it can also be prevented from improperly moving away.

Preferably, the blocking of the wheel can take place by means of a pawl engaging in a corresponding link, by generating a counterforce by the drive and / or by means of a steering movement. Preferably, the individual measures can be combined with each other. As a result, an accidental rolling away and / or improper pushing away of the baby carriage can be prevented in the best possible way. First, therefore, it can be determined whether the condition is met, whereupon the wheel of the chassis is blocked, in particular by means of the pawl, the drive and / or a steering by means of which the steering movement is executable.

Furthermore, it is conceivable that the mobile transmitting / receiving device has a mobile human / machine interface, by means of which additional mobile control commands of the person can be detected. The control commands may in particular be parameterizations of the chassis, the control device, in particular the steering and / or the drive. In particular, an automatic lock, in particular in the form of a specification of a time interval up to which an automatic lock Lock is effected, can be adjusted. This makes it even easier to prevent improper use of the vehicle or pushchair.

In this context, it is also conceivable to lock and / or unlock the landing gear, in particular the wheel and / or the drive, directly by means of the mobile control commands. By means of the mobile transmitting / receiving device and by means of the mobile control commands so then the vehicle or the stroller is either lockable or unlocked. This is preferably carried out in response to the input of an operator request of the person to the mobile transceiver. As a result, the mobile transceiver realizes a key to lock and / or unlock the vehicle. In particular, an identification secret, for example in the form of a code, fingerprint, face recognition, speech recognition and / or the like, can be interrogated initially by means of the mobile transceiver device. The locking and / or unlocking of the vehicle by means of the mobile transceiver device can therefore take place as a function of an authentication of the person using the vehicle or the pram. For this purpose, the person is first authenticated by means of the mobile transceiver and, depending on this, if necessary after the operator input, the vehicle can be locked or unlocked. Irrespective of this, in the case of a recognized and / or present dangerous situation, the vehicle may be automatically lockable. In addition, it is conceivable to provide a disconnection device or unlocking device by means of which the vehicle can be unlocked in a second way or the safety device can be switched off. This may be advantageous if the mobile transceiver is currently unavailable and yet the vehicle is to be used. Optionally, the unlocking device may have a separate authentication option, for example in the form of a mechanical or electronic key.

Finally, it is possible according to a preferred alternative that the person by means of the mobile man / machine interface information of the vehicle, in particular baby carriage are displayed. The information may be a charging state of an electric power source, a locked state of the landing gear, a speed of the vehicle, an average speed of the vehicle, a traveled distance of the vehicle, a maintenance state of the vehicle, and / or the like. By means of the mobile transmitting / receiving device, therefore, the safety of the hand-guided vehicle can be additionally increased by providing the best possible information. The person himself can draw conclusions from the information and, if necessary, take and / or initiate safety-enhancing measures on the vehicle.

The object is also achieved in a hand-held vehicle such as a stroller with a previously described security device and a communication means described above by a human / machine interface downstream first transceiver and a control device upstream second transceiver for establishing a radio link of the communication means , The actual establishment of the radio link thus takes place via the first and second transceiver devices. With regard to the construction and the possible communication via the radio link, reference is made to the safety device described above. In particular, it is provided that the vehicle, in particular the stroller, cooperates with a mobile transceiver device entrained by the person in such a way that a safety device described above is thereby formed. This results in the advantages described above.

The object is also achieved by a mobile transmitting / receiving device in that it is designed and set up as a mobile and radio-based communication and data processing device and has a standardized Nahfeldkommunikationsvorrichtung over which a previously described radio link is established, wherein by means of the mobile transceiver can be received by the man / machine interface of the vehicle, in particular baby carriage emitted control commands and to the control device of the vehicle can be further transmitted. The mobile transmitting / receiving device is thus set up and / or programmed so that by means of this the radio link for controlling the vehicle can be built up. In particular, by means of the mobile transmitting / receiving device a security, in particular in the sense of a key to protect the vehicle from improper pushing away and / or accidental rolling feasible.

Further advantages will become apparent from the subclaims and the following description of preferred embodiments. Advantageous developments are the subject of the dependent claims. The features listed individually in the claims can be combined in a technologically meaningful manner and can be supplemented by explanatory facts from the description and by details from the figures, with further embodiments of the invention are shown.

list of figures

• 1 eine dreidimensionale Ansicht von schräg seitlich vorne oben eines nur teilweise dargestellten Kinderwagens mit einem Chassis und einer Sicherheitseinrichtung;
• 2 eine Seitenansicht des in 1 gezeigten Kinderwagens;
• 3 eine stark schematisierte Draufsicht auf ein Fahrwerk und die Sicherheitseinrichtung des in den 1 und 2 dargestellten Kinderwagens;
• 4 die in 3 gezeigte schematisierte Draufsicht auf das Fahrwerk des Kinderwagens, wobei ein Abstand zwischen einer mobilen Sende/Empfangsvorrichtung der Sicherheitseinrichtung und dem Fahrwerk des Kinderwagens vergrößert ist; und
• 5 ein Ablaufdiagramm eines Verfahrens zum Bedienen und Steuern des Fahrwerks des in den 1 bis 4 gezeigten Kinderwagens.

In the following the invention will be explained in more detail with reference to the embodiments illustrated in the accompanying figures. Show it:

• 1 a three-dimensional view obliquely laterally front top of a stroller only partially shown with a chassis and a safety device;
• 2 a side view of the in 1 shown baby carriage;
• 3 a highly schematic plan view of a chassis and the safety device in the 1 and 2 illustrated stroller;
• 4 in the 3 shown schematic plan view of the chassis of the stroller, wherein a distance between a mobile transmitting / receiving device of the safety device and the chassis of the stroller is increased; and
• 5 a flowchart of a method for operating and controlling the chassis of the in the 1 to 4 shown baby stroller.

Description of preferred embodiments

Before describing the invention in detail, it should be noted that it is not limited to the respective components of the device and the respective method steps, since these components and methods may vary. The terms used herein are intended only to describe particular embodiments and are not intended to be limiting. In particular, the description will be given by way of example with reference to a baby carriage, the corresponding technical solutions and details being transferable to any type of hand-held vehicle, in particular caddies, rollators, wheelchairs, pallet trucks, etc. Moreover, if in the description or in the claims the singular or indefinitely used articles, this also applies to the majority of these elements, unless the overall context clearly makes something else clear.

1 shows a three-dimensional view obliquely from the front side of the top of a hand-held vehicle partially shown 3 in a possible embodiment as a stroller, wherein in the following on the stroller also with the reference numeral 3 Reference is made. 2 shows a side view of the in 1 shown baby stroller 3 , but in the assembled state with a baby bath 65 , In the baby bath 65 can put a not shown toddler and by means of the stroller 3 be transported. The following is with reference to the 1 and 2 a safety device 1 of the baby carriage 3 explained in more detail.

The safety device 1 has a radio link 15 on, by means of a person 9 at a human / machine interface 5 inputable control commands 7 to a control device 13 for controlling a landing gear 19 of the baby carriage 3 can be passed on.

The radio link 15 is in a preferred embodiment, the in 1 is shown by means of a first transmitting / receiving device 43 , in particular a transmitter, and a second transceiver 45 , in particular a receiver, constructed.

The stroller 3 Can handle in the usual way 67 by one or two hands from the person 9 be grasped and pushed. The handle 67 has at least one sensor 69 on, by means of a movement and / or a force of the person 9 on the handle 67 can be determined. The sensor 69 may include force sensors, torsion sensors, tactile sensors, planar tactile sensors and / or the like. The sensors are part of the human / machine interface 5 or this upstream. In particular, the handle 67 and the sensors attached there 69 Part of the human / machine interface 5 ,

According to a preferred alternative, the at least one sensor 69 on, at, under or adjacent to a surface attached by the person 9 can be grasped. Alternatively or additionally, the at least one sensor 69 also on or in a U-hanger 79 be appropriate, for example, for measuring a compression, torsion and / or elongation of the U-bracket 79 , The U-hanger 79 is mechanically between the handle 67 and the suspension 19 switched or connects them firmly together. Part of the track is in this case purely mechanical and runs over one or both sides of the U-bracket 79 up to the at least one sensor 69 , This allows the radio link 15 be shortened, whereby a transmission energy can be reduced and / or a transmission reliability can be additionally increased.

A force of the person 9 on the handle 67 , ie the input of the control command 7 Also in or on the U-hanger 79 by means of the at least one sensor 69 measured and from the downstream control device 13 be implemented accordingly. Exemplary optional positions of the at least one sensor 69 on the U-hanger 79 are in 1 symbolized by dashed rectangles, for example, adjacent to or at a fixation and / or a sliding bearing for sliding Storing and fixing the U-bracket 79 on the chassis 19 , in particular on both sides of the U-bracket 79 ,

Not shown in detail can the human / machine interface 5 preferably an electronic control system for evaluating the sensor signals 69 exhibit. In this way, the manually entered control commands the person 9 converted into electronic signals. The electronic signals 71 are in 1 indicated by an arrow and can by means of the first transmitting / receiving device 43 in corresponding radio signals for transmission over the radio link 15 being transformed. Accordingly, these are from the second transmitting / receiving device 45 received and in steering movements of a wheel 27 and / or an unspecified drive torque for power assisted guiding the stroller 3 implemented. In the embodiment according to 3 provide the first transceiver 43 and the second transmitting / receiving device 45 means of communication 11 for establishing the radio link 15 represents.

According to a preferred alternative, in 2 is shown, the communication means 11 additionally one in the radio link 15 switched mobile transceiver 17 on. The mobile transceiver 17 has a near-field communication device 47 on. The near-field communication device 47 For example, according to a radio standard, it can be set up and / or configured over short distances for establishing radio links, in particular having a WLAN direct standard, a Bluetooth standard and / or another corresponding radio standard. In the 1 and 2 is the radio link 15 each by means of dotted double arrows 73 symbolizes. As in 2 to recognize the radio path runs 15 preferably entirely via the mobile transceiver 17 , Alternatively or additionally, however, it is also conceivable that in 1 illustrated principle with the in 2 to combine, with communication between the human / machine interface 5 and the control device 13 partly directly between the transceiver 43 and 45 and partly via the mobile receiving device 17 runs. According to an alternative, not shown, the safety device 1 have a shutdown, so that operation of the baby carriage with optional and possibly even without the mobile transceiver 17 is possible. For this purpose, the shutdown of the safety device 1 a manually operable via a standard security lock and an associated mechanical or electronic key switch. The switch may, for example, be on the control device 13 work so that the operation without the mobile transceiver 17 is possible. In particular, the switch and / or the security lock of this can be supplied with electrical energy, if these are electronic components.

As in 2 To recognize, the person can 9 the control commands 7 on the handle 67 , especially directly to the handle 67 attached sensors 69 the human / machine interface 5 enter. Alternatively, the entry is made on the handle 67 about a purely mechanical force of the person 9 , with the force acting on the removed at the U-hanger 79 attached sensors 69 is detectable or detected. According to a preferred possibility, alternatively or additionally has the mobile transceiver 17 a mobile human / machine interface 37 on. At the mobile man / machine interface 37 it may, for example, be keys and / or a touch-sensitive surface of a display of the mobile transceiver 17. Preferably, the mobile transceiver device is 17 to a portable mobile computer, in particular combined with a mobile phone, the corresponding radio standards and programming capabilities. This makes it possible that in addition to the control commands 7 also mobile control commands 39 to control the baby carriage 3 can be entered.

3 and 4 each show a highly schematic plan view of the chassis 19 and the man / machine interface 5 of in 1 shown partially illustrated stroller 3 , 4 shows in contrast to the representation of 3 a condition of the baby carriage 3 where a distance 23 between the person 9 or the mobile transceiver 17 and the human / machine interface 5 so magnified that the person 9 the handle 67 can no longer grasp, so no meaningful operation of the man / machine interface 5 can take place. The following is with reference to the 3 and 4 the function of the safety device 1 explained in more detail.

The over the human / machine interface 5 entered control commands 7 the person 9 be from the control device 13 processed and put in a drive torque on the wheel 27 works implemented. The drive torque is in 3 by means of a first double arrow 75 indicated. In the present case, a torque acting on the stroller in the direction of travel or against the direction of travel may be used as the drive torque 3 be understood. The drive torque can therefore also assume negative values and serve for braking and / or for converting kinetic energy back into electrical energy.

By means of a second double arrow 33 is in the 3 and 4 a steering movement of the wheel 27 symbolizes. The steering movement of the wheel 27 can be used to control the stroller 3 be used by a curve. According to the presentation of the 4 However, this can be so strong that a forward movement of the stroller 3 no longer makes sense and thus a locking effect of the chassis 19 entry. In 4 is the wheel 27 about 90 degrees to a direction of travel of the stroller 3 twisted. The advantageous barrier effect can be achieved even at steering angles between about 80 and 100 degrees.

As in the 3 and 4 to recognize, is the human / machine interface 5 the first transmitting / receiving device 43 downstream. This in turn is the mobile transceiver 17 downstream. The mobile transceiver 17 is also connected to the second transceiver 45 in conjunction, that is the mobile transceiver 17 is downstream. The control device 13 for controlling the wheel 27 of the landing gear 19 of the baby carriage 3 is the second transmitting / receiving device 45 downstream. The control device 13 are as adjusting elements on the wheel 27 acting drive 31 for generating the drive torque and a steering device 35 downstream of the steering angle. The drive 31 and the steering device 35 are from an auxiliary power source, such as a rechargeable battery 41 supplied with electrical energy. In addition, alternatively or additionally, the control device 13 a pawl 29 , the positive and / or non-positive with a corresponding device of the wheel 27 can be engaged. By means of the pawl 29 In addition to setting the steering angle and / or the drive torque, the wheel 27 be set in the sense of a parking brake. The pawl 29 can be used for energy-free parking or parking of the stroller 3 be controlled.

In 4 it can be seen that the distance 23 is enlarged. Here is a condition 25 in the flowchart of the 5 is explained in more detail fulfilled. This can be, for example, that the distance 23 exceeds a predetermined threshold and / or a signal strength 21 between the transceivers 43 and or 45 and the mobile transceiver 17 a threshold falls below. The signal strength 21 is in the 3 and 4 symbolically by means of three bars, optionally on the mobile transceiver 17 are symbolizable.

5 shows a flowchart of a method for operating a safety device 1 one in the 1 to 4 shown baby stroller 3 , The following is also on the 1 to 4 Referenced.

By means of the human / machine interface 5 , in particular the sensors 69 the human / machine interface 5 , in particular by means of the handle 67 , the U-bracket 79 and the sensors 69 , are the control commands 7 the person 9 detectable. Accordingly, in a first step 49 the capture of the person 9 at the human / machine interface 5 entered control commands 7 ,

By means of the human / machine interface 5 , in particular the first transmitting / receiving device 43 are the control commands 7 implemented and / or by means of communication 11 So over the radio link 15 sendable, preferably first to the in the radio link 15 switched mobile transceiver 17 , Accordingly, in a second step 51 the conversion and / or transmission of the control commands 7 over the radio link 15 ,

In an in 5 not shown optional embodiment, the control commands 7 as in 1 shown directly to the second transmitting / receiving device 45 sent, received by this and further processed, in particular in one by means of the second double arrow 33 symbolized steering movement and / or by means of the first double arrow 75 symbolized drive torque on the wheel 27 implemented.

According to the in 2 illustrated embodiment, the over the radio link 15 sent control commands 7 from the mobile transceiver 17 receivable, what in the 2 to 4 by means of dotted double arrows 73 is indicated. Accordingly, in a third step 53 receiving the from the first transceiver 43 emitted control command 7 ,

The received control commands 7 are in the mobile transceiver 17 cacheable and / or processable and / or forwardable. The processing, in particular storing the control commands 7 by means of the mobile transceiver 17 takes place in a fourth step 55 ,

The fourth step 55 culminates in the checking of a condition 25 , Accordingly, by means of the mobile transceiver 17 the condition 25 testable. For example, the condition is a predetermined threshold for the distance 23 and / or the signal strength 21 ,

If the condition 25 is met, so the distance 23 exceeds the threshold and / or the signal strength 21 falls below a predetermined threshold, is in an eighth step 63 branched. In this case, the actual control command 7 not used and replaced by a lock command. Accordingly, by means of the mobile transceiver 17 the control command 7 be replaced by a lock command if the condition 25 is satisfied.

In the event that the condition 25 is not met, the possibly processed control command 7 in a fifth step 57 to the second transmitting / receiving device 45 sent on.

A ninth step 77 is analogous, in contrast to the original control command, the lock command is sent on.

In a sixth step 59 becomes either the original control command 7 and / or the replacement generated by the locking command from the second transceiver 45 receive. By means of the second transmitting / receiving device 45 So are the lock command and / or the originally entered control command 7 receivable.

After the fifth step 57 or, if necessary, the ninth step 77 thus takes place in the sixth step 59 receiving the control command 7 and / or the lock command.

Accordingly, if the condition 25 is not satisfied, in a seventh step 61 the one from the person 9 originally entered control command 7 implemented in the steering movement and / or the drive torque. In the seventh step 61 So the implementation of the control command occurs 7 and / or the replacement issued lock command. By means of the control device 13 is therefore the control command 7 and / or the locking command generated by replacing in the drive torque and / or the steering movement implemented.

After the seventh step 61 the process flows cyclically back into the first step 49 in which the manually entered control command 7 by means of the human / machine interface 5 can be detected or recorded.

It can be seen that by checking the condition 25 a safety of the baby carriage 3 by means of the safety device 1 can be increased. If the distance 23 so big is that a secure operation by the person 9 can no longer be done, the stroller 3 be placed in a safety state in which this is fixed. The setting is done in particular by the engagement of the pawl 29 with the wheel 27 , By the setting of a corresponding drive torque or braking torque by means of the drive 31 and / or placing a corresponding steering movement of the wheel 27 ,

According to a preferred alternative, the condition is checked 25 automatically. Alternatively or additionally, it is conceivable that by entering the mobile control command 39 at the mobile transceiver 17 the security state can be brought about manually and / or optionally switched off again. This will be what's in 5 is not shown in detail, depending on the input of the mobile control command 39 the control command 7 by the lock command analogous to the ninth step 77 replaced. The control command 7 is therefore also dependent on a manual input of the person 9 Replaceable by the lock instruction. This allows the safety device 1 , in particular the mobile transceiver as a key to operating the baby carriage 3 be used. By entering the mobile control command 39 alternatively or additionally, an authentication of the person 9 respectively.

In summary, for a hand-held, electrically steerable and / or power-assisted stroller or any other hand-held, electrically steerable and / or power-assisted vehicle by means of the safety device 1 safe operation is ensured.

LIST OF REFERENCE NUMBERS

1

safety device

3

Vehicle, stroller

5

Human / machine interface

7

command

9

person

11

means of communication

13

control device

15

radio link

17

Transmitting / receiving device

19

landing gear

21

signal strength

23

distance

25

condition

27

wheel

29

pawl

31

drive

33

second double arrow

35

steering device

37

mobile human / machine interface

39

mobile control command

41

battery

43

first transmitting / receiving device

45

second transmitting / receiving device

47

Nahfeldkommunikationsvorrichtung

49

first step

51

second step

53

Third step

55

fourth step

57

fifth step

59

sixth step

61

seventh step

63

eighth step

65

baby bath

67

Handle

69

sensor

71

electronic signals

73

dotted double arrow

75

first double arrow

77

ninth step

79

U-bolts

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2014040731 A1 [0002]

Claims (12)

Safety device (1) for a hand-guided and electrically assisted vehicle (3) such as a stroller, with a human / machine interface (5), by means of the control commands (7) of a person (9) for controlling a driving state of the vehicle (3) detectable are, - a communication means (11) by means of which the control commands (7) from the man / machine interface (5) to a driving state adjusting control device (13) can be forwarded, characterized in that the communication means (11) a radio link ( 15) for wireless transmission of the control commands (7). Safety device after Claim 1 , characterized in that in the radio link (15) by the person (9) entrained mobile transmitting / receiving device (17) is connected or switchable. Safety device after Claim 2 , characterized in that a chassis (19) of the vehicle (3) is lockable and / or disabled if a signal strength (21) between the mobile transceiver (17) and the control device (13) and / or a distance (23 ) between the mobile transmitting / receiving device (17) and / or the control device (13) fulfill a predetermined or predeterminable condition (25) and / or can be manually unlocked by means of an additional shutdown device. Safety device after Claim 3 , characterized in that depending on the condition (25) at least one wheel (27) of the chassis (19) is blockable. Safety device after Claim 4 , characterized in that the wheel (27) by means of a pawl (29) acting on the wheel (27) drive (31) and / or by means of a steering movement of the wheel (27) acting steering device (35) in dependence the condition (25) is blockable / are. Safety device according to one of Claims 2 to 5 , characterized in that the mobile transmitting / receiving device (17) has a mobile human / machine interface (37), by means of the additional mobile control commands (39) of the person (9) can be detected. Safety device after Claim 6 , characterized in that by means of the mobile control commands (39), the chassis (19) is selectively lockable or unlocked. Safety device according to one of Claims 6 or 7 , characterized in that the person (9) by means of the mobile human / machine interface (37) information of the vehicle (3) are displayed, at least one of the following information of the vehicle (3) can be displayed: a state of charge of an electric battery (41 ), a locked state of the landing gear (19), a speed of the vehicle (3), an average speed of the vehicle (3), a traveled distance of the vehicle (3). Hand-guided and electrically assisted vehicle (3) such as a stroller, comprising: - a human / machine interface (5), by means of the control commands (7) of a person (9) for controlling a driving state of the vehicle (3) can be detected, - one Communication means (11), by means of which the control commands (7) can be forwarded by the human / machine interface (5) to a control device (13) which sets the driving state, characterized by a first transmission / following of the human / machine interface (5). Receiving device (43) and one of the control device (13) upstream second transmitting / receiving device (45) for establishing a radio link (15) of the communication means (11). Hand-guided vehicle after Claim 9 , characterized in that the vehicle (3) cooperates with a mobile transceiver device (17) entrained by the person (9) in such a way that a safety device (1) according to one of the Claims 1 to 8th is formed. Mobile transceiver device (17) arranged, designed and / or programmed, and with a hand-held vehicle (3) such as a stroller according to any one of Claims 9 or 10 cooperates, that thereby a safety device (1) for the vehicle (3) according to one of Claims 1 to 8th is formed or imageable. Mobile transmitting / receiving device according to Claim 11 , characterized in that it is designed and set up as a mobile and radio-based communication and data processing device and has a standardized near-field communication device (47) via which the radio link (15) can be conducted, wherein by means of the mobile transceiver (17) from the Man / machine interface (5) of the vehicle (3) emitted control commands (7) are receivable and to the control device (13) of the vehicle (3) weitererendbar.

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