DE102021006648A1 - Electrically drivable cargo scooter, cargo scooter control and/or regulation system, method for controlling and/or regulating an electrically drivable cargo scooter and computer program product for executing the method using a computer - Google Patents

Abstract

The present invention relates to an electrically drivable cargo scooter, a cargo scooter control and/or regulation system, a method for controlling and/or regulating an electrically operable cargo scooter and a computer program product for executing the aforementioned method using a computer.
The present electrically drivable cargo scooter includes, for example:
- a running board (70); wherein the electrically drivable load roller (1) is characterized by
- A footboard sensor (90), which is configured to emit a signal when the footboard (70) is under load and/or to emit a signal when the footboard (70) is relieved; and
- a cargo scooter control and/or regulation system connected to the footboard sensor (90);
-- wherein the load roller control and/or regulation system is configured to adapt a drive of the load roller (1) to the load state or load state.

Description

The present invention relates to an electrically drivable cargo scooter, a cargo scooter control and/or regulation system, a method for controlling and/or regulating an electrically drivable cargo scooter and a computer program product for executing the aforementioned method using a computer.

Various load roller variants are known from the prior art which, in addition to a running board and rollers, have a receiving device for loads, such as a suitcase or a suitcase holder. Such conventional scooter variants make it their task to promote people's mobility in a practical way. An example cargo roller is made from PCT/ EP2019/086679 known.

Cargo scooters for promoting mobility in the future are subject to a wide range of requirements that are defined by their specific field of application, for example by who or what is to be transported and by the routes that are to be used for transport.

It is therefore the object of the present invention to provide a load roller which is accessible to a large number of fields of application and which enables a particularly simple and reliable transition between different transport routes or situations.

The object described above is solved by the subject matter of the independent claims, preferred embodiments are the subject matter of the dependent claims.

• - eine Vorderachse mit zumindest einem Vorderrad, wobei die Vorderachse an einem Vorderrahmenteil angeordnet ist;
• - eine Hinterachse mit zumindest einem Hinterrad, wobei die Hinterachse an einem Hinterrahmenteil angeordnet ist;
  • -- wobei der Lastenroller einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil und dem Vorderrahmenteil zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil und dem Vorderrahmenteil angeordnet ist; und
• - ein Trittbrett; dadurch gekennzeichnet, dass
  • -- das Trittbrett eine Hinterradfreigabeeinrichtung aufweist, welche konfiguriert ist, im kurzen Zustand des Lastenrollers eine Schwenkbarkeit des zumindest einen Hinterrads freizugeben.

One aspect of the invention relates to an electrically drivable load scooter, comprising:

• - A front axle with at least one front wheel, the front axle being arranged on a front frame part;
• - A rear axle with at least one rear wheel, the rear axle being arranged on a rear frame part;
  • -- wherein the load roller has a short state in which one of the rear frame part and the front frame part is at least partially arranged in the other of the rear frame part and the front frame part; and
• - a running board; characterized in that
  • - The running board has a rear wheel release device, which is configured to release pivoting of the at least one rear wheel in the short state of the load scooter.

Advantageously, the present electrically drivable load scooter enables the electrically drivable load scooter to be particularly manoeuvrable, and a particularly low Has turning circle.

Due to the increased maneuverability in the short state of the load scooter, the load scooter is particularly suitable not only for transporting a load up to a building, but also for transporting it into the building, which means that transport routes to offices or living areas are also accessible for the load scooter , which can lead, for example, via elevators or the like.

The pivotability of a rear wheel is to be understood, in particular, as meaning the rear wheel's ability to rotate about its vertical axis or about an axis about which the rear wheel is rotatably mounted for a steering movement of the load scooter.

In exemplary embodiments, the pivotability of the at least one rear wheel can be released by means of the rear wheel release device of the running board in such a way that the at least one rear wheel can be pivoted through at least approximately 90°, preferably up to approximately 180°, and particularly preferably through 360°. So that in the latter case, the at least one rear wheel can be pivoted or rotated completely about its vertical axis.

The short state of the load scooter can in particular be a state in which the load scooter is shortened compared to another state of the load scooter, which can be referred to as a long state, in particular is shortened in its longitudinal direction. The short state of the load scooter can, for example, describe a state of the load scooter in which one of the rear frame part and the front frame part is arranged at least in sections in the other of the rear frame part and the front frame part or is accommodated in the other of the rear frame part and the front frame part. For example, the short state of the load scooter can correspond to a state in which the rear frame part is almost completely accommodated in the front frame part or vice versa. Furthermore, the long state of the load scooter can correspond to a state in which the front frame part is almost completely accommodated in the rear frame part or vice versa.

In other words, the load roller can have a frame that is a front frame part and a rear frame member. In this case, the front frame part and the rear frame part can be arranged such that they can be displaced in relation to one another, in particular in the longitudinal direction of the load roller can be arranged in such a way that they can be displaced in relation to one another. For example, the front frame part and the rear frame part can be made telescopic to one another, but are not limited to this. In particular, the front frame part and/or the rear frame part can be configured to accommodate or receive only one section of the other in the short state and in the long state at least in sections.

By arranging the rear axle on the rear frame part and arranging the front axle on the front frame part, the short state can be configured in particular in that the rear axle and the front axle have a shortened distance from one another, compared to a long distance in a long state of the cargo scooter .

In preferred embodiments, the short state can be defined in that the distance between the rear axle and the front axle is shorter than a distance between two wheels which are arranged on the front axle or the rear axle. As a result, a load roller can be provided whose turning circle is advantageously small when short, in particular so small that a turning circle radius is defined solely or exclusively by the distance between two wheels which are arranged on the front axle or on the rear axle. In exemplary embodiments, the cargo scooter can have a turning circle radius of less than about 1.5 m in the short state, preferably less than about 1.3 m, more preferably about 1.1 m, and particularly preferably about 1.0 m . The aforementioned realizable turning circle radii represent exemplary turning circle radii of the present inventive load roller, with turning circles lying above or below also being able to be realized depending on the desired dimensions of the load roller.

In further preferred embodiments, two wheels on an axle can be driven in opposite directions. For example, two wheels can be arranged on the front axle of the load roller, with two wheels also being able to be arranged on a rear axle as an alternative or in addition. In the short state, the two wheels can be configured so that one of the two wheels can be driven forwards and the other of the two wheels can be driven backwards. By means of the present preferred embodiment, a turning circle of the cargo scooter can advantageously be further reduced. In the exemplary case of a cargo scooter according to the invention with two front wheels on a front axle and a rear wheel with free pivoting, the turning circle radius can be defined by a distance between the axle center point of the front axle and a front wheel, which is arranged on the front axle, for the case when the Load roller is shortened in the short state such that the distance between the front axle and rear axle is smaller than the distance between the front axle center and a front wheel. Alternatively, the turning circle radius can be defined by a distance between the front axle and the rear axle, for the case when the load scooter is shortened in such a way that the distance between the front axle and the rear axle is greater than the distance between the center of the front axle and a front wheel. The ability to drive two wheels on an axle in opposite directions can represent an additional drive process or an additional drive method, which supports or enables turning of the load roller with advantageously little space. In addition, the load scooter has a normal drive process or a normal drive method, with the wheels arranged on an axle being able to be driven in the same direction. The ability to drive two wheels in opposite directions on an axle can advantageously be made possible, for example, by means of local motors, with each wheel being connected to a local motor, for example, which drives only the individual wheel connected to it. Alternatively or additionally, a local motor can also be configured to drive a plurality of individual wheels.

Compared to the statements regarding the turning circle of the cargo scooter in the short state, the cargo scooter according to the invention in the long state can have a turning circle radius in the range from about 1.8 m to about 2.5 m, preferably about 2.2 m. As a result, the load scooter has a preferably high cornering stability in the long state, which makes it easier for a user to drive at higher speeds, such as in road traffic.

In exemplary embodiments, the front frame part and the rear frame part can be arranged such that they can be displaced in relation to one another by means of a rail system.

In alternative embodiments of the load scooter, the front frame part and the rear frame part can also be pushed past one another in order to convert the load scooter from a long state to a short state, and vice versa.

In preferred embodiments of the cargo scooter, the at least one rear wheel of the Load rollers in the long state of the load roller have limited pivotability, in particular with respect to the pivotability be completely blocked. In exemplary embodiments, the pivotability of the at least one rear wheel in the long state of the cargo scooter can be limited in particular to a range of up to about 15°, preferably up to about 8°, more preferably up to about 3°, even more preferably up to about 1°, and particularly preferably by about Be limited to 0 °, the specified angular range relates to the pivoting or rotating around the vertical axis of the rear wheel or around the axis about which the rear wheel is rotatably mounted.

The limited swiveling ability of the at least one rear wheel of the cargo scooter advantageously increases the driving stability at comparatively high speeds of the cargo scooter, such as when driving on normal roads for motor vehicles.

The combination of released pivotability of the at least one rear wheel when the load scooter is in the short position and the limited pivotability of the at least one rear wheel when the load scooter is in the long position enables an advantageous system for fast transport on the road on the one hand and agile transport in buildings on the other hand with the present load scooter . This means that goods or people, for example, can be transported with high efficiency in terms of time and with ergonomics that are advantageous for the user.

In exemplary embodiments of the cargo scooter, the rear wheel release device can form a projection which is preferably configured to extend through an opening or flap towards the at least one rear wheel when the cargo scooter is in a short state and interact with a rear wheel securing device in such a way that the pivotability of the at least one rear wheel is released. The pivotability of the rear wheel can be released in particular by a lock on the rear wheel being folded away. The rear wheel release means may be, for example, a protrusion extending from an underside of the footboard, which preferably comprises a roller, wheel, ball or other slidable element. The element suitable for sliding or rolling can preferably be arranged on an end of the projection that is distal in relation to the running board.

By providing the rear wheel release device as a projection, the rear wheel release device is advantageously designed as a passively acting element which allows the pivoting of the at least one rear wheel to be released in a passive manner, in particular by positioning the running board in an upwardly pivoted state and by pushing the front frame part together the rear frame part.

In further exemplary embodiments of the cargo scooter, the footboard can be in a position suitable for driving when the scooter is in the long state, or can be arranged on the frame parts in a position suitable for driving. In other words, the footboard can be positioned approximately horizontally in the long state or be in a position that allows a user of the load scooter to stand on it when using the same.

On the other hand, when the load scooter is in a short state, the running board can in particular be folded up or pivoted or be in a position that does not allow a user of the load scooter to stand on it when using the same. The folded-up position can in particular be a position folded upwards at an angle of about 60° to about 100° in relation to the longitudinal direction of the load scooter, for example an approximately vertical position, and also correspond to a position in which the running board is approximately parallel to a steering device of the load scooter.

The rear wheel release device can be arranged in particular on an underside of the running board. In the long state of the load scooter, ie in particular when the footboard is in a position suitable for driving, the rear wheel release device can be arranged in a recess in the rear frame part of the load scooter, the recess preferably having a ramp section. The recess in the rear frame part of the load scooter can advantageously enclose the rear wheel release device in the long state and delimit it from the side of the road, so that the rear wheel release device is protected while the load scooter is being driven.

The transition of the running board between the driving position and the folded-up position can take place in particular by means of a mechanical and/or hydraulic folding device.

Additionally or alternatively, the transition of the running board between the position suitable for driving and the folded-up position can take place in particular by manual folding or pivoting, in particular about a transverse axis.

When folding, the ramp section of the rear frame part and the rear wheel release device can interact in such a supporting manner that only a reduced force has to be used, in particular to fold up the running board.

Both the mechanical and/or hydraulic folding device and the interaction of the ramp section with the rear wheel release device can ensure a simple and ergonomic transition between the driving position and the folded-up position of the running board.

In exemplary embodiments of the cargo scooter, a transition between the long state and the short state of the cargo scooter can take place by locking the at least one front wheel of the front axle and simultaneously driving the at least one rear wheel of the rear axle, or by locking the at least one rear wheel of the rear axle and the simultaneous driving of the at least one front wheel of the front axle takes place, whereby a particularly simple and ergonomic transition between the long state and the short state of the load roller is provided for the user.

In particularly preferred embodiments of the cargo scooter, the transition from the long state to the short state can take place at least in sections at the same time as the transition of the running board from the position suitable for driving to the folded-up position. This enables a particularly time-saving state change of the load roller when changing from one transport route to another transport route, such as from approaching a building in the long state to entering a building in the short state or vice versa.

In exemplary embodiments, the above-mentioned transition between the long and short state, which at least partially takes place parallel to the transition of the running board, can take place by locking the at least one front wheel and driving the at least one rear wheel, or vice versa, by moving the rear frame part and the front frame part to each other, the ramp section is pressed against the rear wheel release device in such a way that the running board is folded up out of the way. As a result, a time-saving as well as ergonomic transition between the long and short state of the load roller can be advantageously implemented.

In addition, the transition from a long state to a short state can in particular be prevented or blocked as long as the footboard is fixed in a position suitable for driving for the user. The transition from a long state of the load scooter to a short state of the load scooter may, for example, require a previous step of releasing the fixing of the running board, for example from the rear frame part.

Various terms are used repeatedly below, the understanding of which is intended to be made easier by the following definitions.

Electrically drivable load scooter: In the present case, an electrically drivable load scooter is to be understood in particular as a scooter-like vehicle or vehicle which has at least one front wheel, preferably two front wheels, and a rear wheel which is suitable for transporting loads, for example in the form of other people or passengers , Parcels, groceries or other goods, and which in particular has at least one electric motor as a drive. Nevertheless, the present aspects and embodiments are not limited to a cargo scooter that explicitly has to have at least one electric motor as a drive. Rather, the load roller can in principle also be driven, for example, by an internal combustion engine or a fuel cell. However, the cargo scooter, which has at least one electric motor, is advantageous in that it can be charged in a simple manner, for example at a socket, or can be made ready for operation by quickly changing the battery. Furthermore, the load scooter, which has an electric motor as a drive, allows no exhaust fumes to be produced when driving, and the load scooter is therefore particularly suitable for operation or for covering transport routes in closed buildings, such as in particular office areas or residential areas. If the term “cargo scooter” is mentioned above and in the following without further reference to the drive, the term “electrically driven cargo scooter” should be used as a basis.

Longitudinal direction: The longitudinal direction describes a direction that essentially corresponds to the direction of movement of the load scooter when driving straight ahead. As a result, the longitudinal direction can essentially correspond to a direction of the cargo scooter from back to front, along a distance between the rear axle and the front axle of the cargo scooter. The directions of travel forwards and backwards are, in particular, approximately parallel to the longitudinal direction of the load scooter, with the direction of travel forwards being able to correspond to the longitudinal direction, and the direction of travel being backwards parallel and opposite to the longitudinal direction. The longitudinal direction can also, for example indicate a direction in which a front frame part and a rear frame part of the load roller are mutually displaceable.

Height direction: The height direction is generally perpendicular to the longitudinal direction and essentially corresponds to a normal on an imaginary surface on which the load roller can be moved.

Width direction: The width direction is generally substantially perpendicular to the length direction and the height direction. In particular, the width direction can approximately correspond to a direction in which a front axle and/or a rear axle of the cargo scooter extends. The width direction can also be referred to below as the transverse direction or as the direction running transversely. Furthermore, different transverse axes can extend in particular essentially in the width direction.

The height direction, the width direction and the longitudinal direction can form a coordinate system, in particular a legal system. The directions mentioned have no particular origin on the load scooter and rather bring the elements or parts designated therein in relation to one another.

Turning circle: The turning circle represents the smallest circle related to an element of the load scooter that protrudes furthest to the outside of the curve, in which the load scooter can perform a circular drive. In other words, the turning circle represents a circle over which the goods scooter does not protrude outwards with any element if the goods scooter, by means of the narrowest possible circle travel, assumes a direction of travel which rotates by 180° to a previous direction of travel before turning or before driving on the narrowest possible circle is. Turning circle also means, in particular, a diameter of a turning circle. The turning circle radius is half of the turning circle or the turning circle diameter.

If a direction or an angle is reproduced with the suffix “essentially” or “roughly”, this suffix means or is to be understood in particular as a deviation from the relevant direction or from the relevant angle in the range of 0° to 5° .

If a spatial dimension, a spatial relationship or any other relationship is reproduced with the addition "essentially" or "roughly", this addition indicates in particular a deviation from the relevant dimension or the relevant ratio in the range of 0% to 10% % meant or understood.

In preferred embodiments of the electrically drivable load scooter, the rear frame part can have a rear wheel safety device that can be deflected in a resilient manner, which secures the at least one rear wheel against pivoting when the load scooter is in a long state.

The rear wheel safety device, which can be deflected in a resilient manner, advantageously provides a passive means of securing the rear wheel against pivoting or twisting of the rear wheel about its vertical axis. By securing the rear wheel against pivoting, the driving stability and driving safety of the cargo scooter in particular is advantageously increased at higher speeds, such as on normal roads for motor vehicles.

In preferred embodiments of the electrically drivable load scooter, the footboard can be pivoted in the short state of the load scooter compared to the long state of the load scooter, and
the rear wheel release device of the running board can be configured in the short state of the load scooter to deflect the rear wheel safety device that can be deflected in a resilient manner in order to release the pivotability of the rear wheel.

In other words, when the load scooter is in the short position, the running board can be folded, in particular folded up or pivoted upwards, compared to the long position of the load scooter, so that the rear wheel release device deflects the resiliently deflectable rear wheel safety device in such a way that the rear wheel can pivot or rotate about its vertical axis is released.

The linking of the pivoted or folded-up state of the running board with the short state of the cargo scooter, so that the pivoting of the at least one rear wheel is released, advantageously enables the cargo scooter to be steered particularly flexibly and in a space-saving manner in its short state on the one hand, and on the other hand It is advantageous that the load scooter has a particularly high level of driving stability and driving safety for the user in its long state, in which the resiliently deflectable rear wheel safety device restricts the pivoting of the at least one rear wheel.

In other words, the present load roller advantageously enables two contrary transport situations, such as road travel on the one hand and transport inside buildings on the other hand, to be linked or combined in an advantageously safe and ergonomic manner.

In preferred embodiments of the electrically drivable load scooter, the rear wheel safety device that can be reset can have a groove element that can be folded back and
wherein a securing projection is arranged on the at least one rear wheel, and
wherein in the long state of the load roller, the securing projection engages at least in sections in the resiliently foldable groove element.

In alternative embodiments of the cargo scooter, the rear wheel safety device that can be reset can have a safety projection that can be folded back and
wherein a groove element is arranged on the at least one rear wheel, and
in the long state of the load roller, the resiliently foldable securing projection engages in the groove element.

The arrangement of a resiliently foldable element and an element coupled to the rear wheel consisting of a groove and a projection engaging at least in sections therein advantageously enables a simple, passive, mechanically secure fixing of the rear wheel when the load scooter is in the long position.

The resiliently foldable groove element or the resiliently foldable securing projection can, for example, have a spring arrangement, preferably a torsion spring arrangement, which allows resilient or elastic rotation or rotation of the respective element about a transverse direction or width direction of the load roller. However, the resilient rear wheel securement device is not limited to this.

In the short state of the cargo scooter, the rear wheel release device can be configured in particular to extend through a folding opening or rear wheel opening, for example in order to deflect the resiliently foldable groove element in a resilient manner in order to release an engagement between the groove element and the securing projection, and the pivotability of the at least one rear wheel to release. Furthermore, when the load scooter is in the long position, the rear wheel release device can be configured in particular not to extend through the folding opening or rear wheel opening, so that the groove element and the securing projection remain engaged due to the resilient design and block or prevent the pivoting of the at least one rear wheel .restrict.

In exemplary embodiments, the groove can be designed in particular as a conical or triangular opening groove in order to advantageously facilitate or ensure engagement in one another during a transition from the short state to the long state of the load roller.

Additionally or alternatively, the securing projection or the groove element can be arranged on the at least one rear wheel by means of a rotatable rear wheel suspension. Preferably, the securing projection or the groove element can be arranged on the same side as the center of the rear wheel with respect to a rotational axis or vertical axis of the rotatable rear wheel suspension.

In the following, the exemplary embodiment is briefly discussed, in which the rear wheel securing device which can be reset has a groove element and in which a securing projection is arranged on the rear wheel or on the rotary rear wheel suspension. In alternative embodiments, the resilient rear wheel securing device can have a securing projection and a groove element can be arranged on the rear wheel or on the rotatable rear wheel suspension. The aforementioned alignment with respect to the axis of rotation of the rear wheel suspension advantageously allows the rear wheel to automatically align itself when the rear wheel moves backwards in the direction of travel so that the center of the rear wheel is in front of the axis of rotation of the rear wheel suspension in the direction of travel, i.e. the center of the rear wheel with respect to the axis of rotation the rear wheel suspension is aligned further forward in the direction of travel, and in particular is automatically aligned approximately along the longitudinal direction of the load scooter, since this is the stable position of the at least one rear wheel when the rear wheel moves backwards in the direction of travel. This also makes it possible that when the rear wheel moves backwards in the direction of travel, the safety projection, which is arranged on the rotatable rear wheel suspension, is positioned or aligned facing the front area of the load scooter. Thus, when the rear wheel moves backwards in the direction of travel, it is advantageously made possible that when the resiliently foldable groove element is folded back, the engaging elements are securely and reliably aligned with one another and engaged when the load roller reaches the long state.

In preferred embodiments of the electrically drivable load scooter, a rear wheel swivel sensor can be arranged in the area of the resiliently foldable groove element and configured to detect at least partial engagement of the securing projection and/or non-engagement of the securing projection.

By detecting the at least partial intervention or non-intervention A rear wheel status signal can advantageously be generated between the resilient rear wheel safety device and the complementary element, which is arranged on the rear wheel. After the rear wheel status signal has been evaluated by a load scooter control and/or regulation system, a drive control or regulation command can be issued which releases or defines a predetermined acceleration and/or speed of the front axle and/or the rear axle. In this case, in particular a predetermined acceleration and/or speed can be enabled in the event of an intervention. Instead, in the event of non-intervention, a predetermined acceleration and/or speed cannot be enabled, in particular blocked or limited. This in turn can advantageously prevent the load scooter from being accelerated beyond a certain level, or also prevent the load scooter from being accelerated at all if the resettable rear wheel safety device and the element complementary thereto are not engaged, which in turn reduces user safety, in particular at a transition between the long and short states.

In exemplary embodiments of the cargo scooter, the rear wheel pivoting sensor can in particular have or be a proximity sensor which is configured to detect the proximity of the securing projection.

For this purpose, the rear wheel swivel sensor can preferably be fixed relative to a predetermined engagement position in the groove element.

Alternatively or additionally, the rear wheel swivel sensor can have or be a contact sensor, an optical sensor, a spring sensor, a magnetic sensor, an ultrasonic sensor and/or a Hall sensor.

In particular, load rollers, which have to meet increased safety regulations, can be provided with a safety-enhancing redundancy due to the transported goods or the transported person or due to possible approval regulations by designing the rear wheel swivel sensor as several sensors of different types.

In preferred embodiments of the electrically drivable cargo scooter, the rear frame part can have a folding opening which is closed by an actuating section of the resiliently deflectable rear wheel safety device when the cargo scooter is in the extended position.

The actuating section of the resiliently deflectable rear wheel safety device thereby advantageously acts as a closing element when the load scooter is in the extended position, which prevents the user from getting dirty, caused by the rear wheel interacting with the surface being traveled on. At the same time, the rear wheel securing device acts integrally as an actuator which can be actuated by the rear wheel release device, the actuation causing a resilient and/or elastic deflection of the rear wheel securing device. The integral functionality of the actuating section of the resiliently deflectable rear wheel safety device in turn enables a particularly simple and resource-saving production of the present cargo scooter.

In exemplary embodiments of the load roller, the actuating section can be formed, for example, by an actuating plate which is formed in one piece with the groove element or with the securing projection, and which in particular can be formed with one or more bends.

In preferred embodiments of the electrically drivable load scooter, the running board can have at least one fixing element which is configured to engage with at least one fixing counter-element of the rear frame part and to secure or fix the long position of the load scooter.

Since the running board has at least one fixing element, which is configured to secure or fix the long state of the cargo scooter with a fixing counter-element, it is given integral functions which, on the one hand, stabilize or stiffen the long state, whereby the load scooter in the long state has a has improved driving dynamics, and on the other hand, in particular, prevent the load scooter from accidentally going into the short state while driving when a user is standing on the running board.

In exemplary embodiments, the at least one fixing element can be designed as a rod element, which is configured to engage in a fixing recess, such as a groove as a counter-fixing element, in a clamping manner or under pretension. In alternative embodiments, the at least one fixing element can be designed in the shape of a groove and the counter-fixing element can be designed in the shape of a rod, with further embodiments deviating from this being possible. Thus, the possibly rod-shaped fixing element or fixing counter-element, for example, a Metal rod, in particular a stainless steel rod or aluminum rod, which has, for example, a round, an oval, or any polygonal shape.

In further preferred embodiments of the cargo scooter, the rear wheel release device can have a sliding element or rolling element, which is preferably arranged at its distal end, facing away from the running board.

Advantageously, the arrangement of a sliding element or rolling element on the rear wheel release device makes it easier for the footboard to fold, in particular by supporting the rear frame part by means of a ramp section.

In addition, the arrangement of a sliding element or rolling element on the rear wheel release device enables the resiliently deflectable rear wheel safety device to be actuated with particularly low wear, which increases or improves the longevity and reliability of the cargo scooter as a whole.

• - eine Vorderachse mit zumindest einem Vorderrad, wobei die Vorderachse an einem Vorderrahmenteil angeordnet ist, und wobei das zumindest eine Vorderrad schwenkbar an dem Vorderrahmenteil angeordnet ist;
• - eine Hinterachse mit zumindest einem Hinterrad, wobei die Hinterachse an einem Hinterrahmenteil angeordnet ist;
  • -- wobei der Lastenroller einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil und dem Vorderrahmenteil zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil und dem Vorderrahmenteil angeordnet ist; dadurch gekennzeichnet, dass
  • -- im kurzen Zustand des Lastenrollers die Schwenkbarkeit des zumindest einen Vorderrads eingeschränkt ist, insbesondere blockiert ist, bevorzugt mechanisch blockiert ist.

A further aspect of the invention relates to an electrically drivable load scooter, comprising:

• - A front axle with at least one front wheel, wherein the front axle is arranged on a front frame part, and wherein the at least one front wheel is arranged pivotably on the front frame part;
• - A rear axle with at least one rear wheel, the rear axle being arranged on a rear frame part;
  • -- wherein the load roller has a short state in which one of the rear frame part and the front frame part is at least partially arranged in the other of the rear frame part and the front frame part; characterized in that
  • - In the short state of the load roller, the pivoting of the at least one front wheel is restricted, in particular blocked, preferably mechanically blocked.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

The limited pivotability of at least one front wheel of the load scooter advantageously increases the steerability for a user, especially when pushing the load scooter, similar to pushing a shopping cart, and thereby increases the maneuverability of the load scooter in the short state, such as in particular for transport inside buildings or around to turn the cargo scooter.

In exemplary embodiments of the load scooter, it can have exactly two front wheels, which are arranged spaced apart from one another in a width direction along the front axle, so that the restricted or blocked pivotability, in particular, allows the load scooter to rotate in the short state around the front axle center as the center of rotation. As a result, a particularly small or tight turning circle can be realized for the load scooter. The rotation of the cargo scooter can also be promoted in particular by simultaneously enabling the pivotability of the at least one rear wheel, as already described above.

The pivotability of a front wheel is to be understood in particular as meaning the rotatability of the front wheel about its vertical axis or an axis about which the front wheel is rotatably mounted for a steering movement.

In exemplary embodiments, the pivoting of the at least one front wheel, in particular two front wheels, can be restricted or blocked by restricting or blocking a steering blocking section of the rear frame part when the load scooter is in a short state, a forward-backward movement or a longitudinal movement of a handlebar, in particular by restricts or blocks a mechanical stop.

In further exemplary embodiments, the load scooter can in particular have a steering device, with an actuatable locking element being arranged on the steering device, which is configured to fix the short state of the load scooter when it is actuated.

The actuatable locking element can in particular be a rod-shaped locking element which, when actuated, is configured to engage in a locking recess of the frame part on which the steering device is not arranged. The locking element can in particular be elongate and have a round, oval, cuboid, rectangular or other polygonal cross section. The locking recess of the frame part can in particular have a shape complementary to the locking element and can form a loose fit, transition fit or press fit with the locking element.

In exemplary embodiments, the operable locking element sections be accommodated in the steering device and held in a specific position of the steering device by means of a spring element, such as a spring pin, and/or by means of a lever.

In preferred embodiments of the electrically drivable cargo scooter, the pivotability of the at least one front wheel in the short state of the cargo scooter can be restricted to a range from about 0° to about 5°, preferably to a range from about 0° to about 2° and particularly preferably completely be blocked.

By restricting the pivotability of at least the front wheel, it is possible for the user to steer the load scooter in a particularly intuitive and simple manner when it is short.

• - ein Trittbrett;

wobei der elektrisch antreibbare Lastenroller charakterisiert ist durch

• - einen Trittbrettsensor, welcher konfiguriert ist, ein Signal in einem Belastungszustand des Trittbretts abzugeben und/oder ein Signal in einem Entlastungszustand des Trittbretts abzugeben; und
• - ein Lastenrollersteuerungs- und/oder -regelungssystem, welche mit dem Trittbrettsensor verbunden ist;
  • -- wobei das Lastenrollersteuerungs- und/oder -regelungssystem konfiguriert ist, einen Antrieb des Lastenrollers an den Belastungszustand bzw. Entlastungszustand anzupassen.

A further aspect of the invention relates to an electrically drivable load scooter, comprising:

• - a running board;

wherein the electrically drivable load scooter is characterized by

• - a running board sensor, which is configured to emit a signal in a load state of the running board and/or to emit a signal in a relieving state of the running board; and
• - a cargo scooter control and/or regulation system, which is connected to the footboard sensor;
  • -- wherein the load roller control and/or regulation system is configured to adapt a drive of the load roller to the load state or load state.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

The footboard sensor advantageously enables a load state and/or a load-relief state of the footboard to be detected in order to adapt the load roller drive to the state accordingly, so that, for example, the torque provided by the drive is reduced in a load-relief state, limited to a predetermined value or to zero is reduced, or, for example, the torque to be provided by the drive is released only from a specific load condition down to a predetermined value or completely.

The load roller control and/or regulation system can in particular have a memory module in which limit values can be entered or specified, which define the relief state and/or the load state. The loading condition can be defined, for example, by the weight of a user, so that a drive torque is released only when the footboard is subjected to a minimum load with the weight of a predetermined user. As a result, the load scooter can advantageously be automatically braked as soon as the user leaves the footboard due to intentional or unintentional dismounting.

This also offers the advantageous possibility of a certain level of protection against theft or helps to prevent incorrect use in that a drive torque is released only in a specific weight range adapted to the predetermined user and is also limited or, for example, reduced to zero.

• kann der Trittbrettsensor einen Näherungssensor umfassen, welcher bei einer vorbestimmten Näherungsposition des Trittbretts und/oder in Abwesenheit einer vorbestimmten Näherungsposition, resultierend aus einer Belastung bzw. Entlastung des Trittbretts, den Belastungszustand bzw. den Entlastungszustand des Trittbretts erkennt.

In preferred embodiments of the electrically drivable load scooter, the footboard sensor can comprise a weight sensor which, above and/or below a predetermined weight, detects the load state or the unloaded state of the footboard and/or

• For example, the footboard sensor can include a proximity sensor that detects the loading or unloading state of the footboard at a predetermined proximity position of the footboard and/or in the absence of a predetermined proximity position resulting from a load or unloading of the footboard.

In further exemplary embodiments, the footboard sensor may include a plurality of weight sensors and/or a plurality of proximity sensors.

The running board sensor enables, by means of one weight or proximity sensor or by means of several weight and/or proximity sensors, that the loading condition and/or the relief condition can be detected precisely and independently of one another, and that, with regard to possible safety aspects, a redundant system for detecting whether one or more users are on the footboard of the cargo scooter can be provided.

• - eine Vorderachse mit zumindest einem Vorderrad, wobei die Vorderachse an einem Vorderrahmenteil angeordnet ist; und
• - eine Hinterachse mit zumindest einem Hinterrad, wobei die Hinterachse an einem Hinterrahmenteil angeordnet ist;
  • -- wobei der Lastenroller einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil und dem Vorderrahmenteil zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil und dem Vorderrahmenteil angeordnet ist;

dadurch gekennzeichnet, dass

• - im langen Zustand des Lastenrollers, das Hinterrahmenteil und das Vorderrahmenteil konfiguriert sind, sich an in Längsrichtung des Lastenrollers zueinander beabstandeten Stellen abzustützen.

A further aspect of the invention relates to an electrically drivable load scooter, comprising:

• - A front axle with at least one front wheel, the front axle being arranged on a front frame part; and
• - A rear axle with at least one rear wheel, the rear axle being arranged on a rear frame part;
  • -- wherein the load roller has a short state in which one of the rear frame part and the front frame part is at least partially arranged in the other of the rear frame part and the front frame part;

characterized in that

• - In the long state of the load scooter, the rear frame part and the front frame part are configured to support one another in the longitudinal direction of the load scooter spaced locations.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

In particular, the rear frame part and the front frame part can be configured to mutually support one another at points spaced apart from one another in the longitudinal direction of the load scooter, so that in other words when the load scooter is in the long state, both the rear frame part is supported on the front frame part and the front frame part is supported on the rear frame part, with the respective Support points are preferably spaced apart from one another in the longitudinal direction.

By supporting the rear frame part and the front frame part in the long state of the load scooter at locations spaced apart in the longitudinal direction of the load scooter, a very rigid load scooter is provided in the long state, which carries the weight of a user on the running board, without one of the frame parts being for the user noticeably lowers and possibly unsettles the user.

Advantageously, the mutual support of the rear frame part and the front frame part allows the frame parts to form a structure that stiffens one another or with one another, which prevents the load scooter from buckling in the long position, while the frame parts can be displaced relative to one another in order to turn the load scooter into the short State to be transferred if no determination element fixes the long state.

• kann ein Abstützabschnitt das Vorderrahmenteil und das Hinterrahmenteil gegen ein Verdrehen abstützen.

In preferred embodiments of the electrically drivable cargo scooter, one of the front frame part and the rear frame part may have a gripping portion, and the other of the front frame part and the rear frame part may have a grippable portion, wherein the gripping portion is configured to grip the grippable portion rotatably, and

• a support section may support the front frame part and the rear frame part against twisting.

• kann ein Abstützabschnitt das Vorderrahmenteil und das Hinterrahmenteil gegen ein Verdrehen abstützen.

In exemplary embodiments of the electrically drivable cargo dolly, the rear frame part may have a gripping portion and the front frame part may have a grippable portion, wherein the gripping portion is configured to rotatably grip the grippable portion, and

• a support section may support the front frame part and the rear frame part against twisting.

• kann ein Abstützabschnitt das Vorderrahmenteil und das Hinterrahmenteil gegen ein Verdrehen abstützen.

In alternative embodiments of the electrically drivable cargo dolly, the front frame part may have a gripping portion and the rear frame part may have a grippable portion, wherein the gripping portion is configured to rotatably grip the grippable portion and

• a support section may support the front frame part and the rear frame part against twisting.

The configuration of the frame parts by means of the gripping section, which is configured to grip the grippable section in a rotatable manner, and a support section, which supports or secures the frame parts against twisting, in particular twisting about the width direction of the load roller, against one another, advantageously results in a plurality of degrees of freedom are provided in order to transfer the frame parts to the long state in a safe manner. At the same time, a self-defining alignment of the frame parts to one another in the long state is ensured when rotation of one frame part is released until the support on the support section between the frame parts is reached.

The mutually stiffening configuration of the front frame part and the rear frame part also advantageously enables high driving dynamics, in particular when driving at comparatively high speeds, such as on the road, for example.

In preferred embodiments of the electrically drivable load scooter, the gripping section can act integrally as a safeguard against the rear frame part coming loose from the front frame part in the front-back direction.

In other words, the gripping section can in particular form a stop which prevents further separation or detachment of the rear frame part from the front frame part when the load roller changes to the long state. Thus, the gripping section represents in particular an element that defines the long state of the load roller, in that it prevents further mutual displacement of the frame parts in a direction separating the frame parts.

In preferred embodiments of the electrically drivable load roller, the mutually spaced sections can have a distance of at least about 6 cm to about 15 cm.

A distance of about 6 cm to about 15 cm between the mutually spaced sections on which the front frame part and the rear frame part are supported advantageously ensures sufficient stiffening of the load roller in the long state, while a space requirement for elements that form the support is advantageous is kept low.

In alternative embodiments, the spaced-apart sections can have a distance that deviates from the aforementioned range, but this would have to be compensated for by a corresponding stiffening of the front frame part and the rear frame part, which involves a lot of material.

• - eine Vorderachse mit zumindest einem Vorderrad;
• - eine Hinterachse mit zumindest einem Hinterrad; und
• - einen Lenker zum Verschwenken von einem von dem zumindest einen Vorderrad oder dem zumindest einen Hinterrad;

wobei der elektrisch antreibbare Lastenroller charakterisiert ist durch

• - eine Lenkunterstützung, welche konfiguriert ist, ein Verschwenken des zumindest einen Vorderrads und/oder des zumindest einen Hinterrads durch Aufbringen eines Verschwenkmoments mittels eines Lokalmotors an dem zumindest einen Vorderrad und/oder dem zumindest einen Hinterrad zu unterstützen.

A further aspect of the invention relates to an electrically drivable load scooter, comprising:

• - A front axle with at least one front wheel;
• - A rear axle with at least one rear wheel; and
• - A handlebar for pivoting one of the at least one front wheel or the at least one rear wheel;

wherein the electrically drivable load scooter is characterized by

• - A steering support, which is configured to support pivoting of the at least one front wheel and/or the at least one rear wheel by applying a pivoting moment by means of a local motor on the at least one front wheel and/or the at least one rear wheel.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

The steering assistance advantageously provides a particularly ergonomic and simple steering of the load scooter for a user.

The pivoting moment can be applied by means of a local motor, in particular in addition to the drive torque, but can also be applied without a drive torque already being applied to the wheel in question, in other words it can be applied independently of the application of a drive torque, such as when pushing the load roller in a short Condition. The pivoting moment can have both a positive and a negative sign.

In preferred embodiments, the steering assistance can apply a pivoting moment without a servo motor or a hydraulic motor.

In exemplary embodiments, each wheel on a front or rear axle, which has several wheels, can be connected or provided with a local motor, so that during a steering operation the local motor of the wheel on the outside of the curve applies an additional pivoting torque, in addition to the drive torque, which is rectified to the driving torque is. Additionally or alternatively, during a steering operation, the local motor of the wheel on the inside of the curve can apply an additional pivoting torque in addition to the drive torque, which is directed in the opposite direction to the drive torque, whereby the steering movement or the curve movement of the load roller is advantageously increased.

In exemplary embodiments, the local motor can be a wheel hub motor that applies both a drive torque and a pivoting torque to the respective wheel.

In other words, the local motor, such as a wheel hub motor in particular, can rotate or drive an outside wheel faster than an inside wheel. Furthermore, the local motor can rotate an inside wheel more slowly than an outside wheel or the inside wheel in the opposite direction of the outside wheel turn to act as a support for the user during the steering process.

• - einen Winkelsensor umfassen, wobei die Lenkunterstützung konfiguriert ist, das Verschwenkmoment in Abhängigkeit eines Signals des Winkelsensors aufzubringen.

In preferred embodiments of the electrically drivable load roller, the electrically drivable load roller can also

• - Include an angle sensor, wherein the steering assistance is configured to apply the pivoting moment as a function of a signal from the angle sensor.

Advantageously, the angle sensor allows the pivoting moment to be applied by the steering assistance as a function of the user's steering angle, so that the user is supported in a manner appropriate to the situation when steering or cornering, so that even particularly tight corners are avoided for the user of the load scooter without a possible shunt, can be put back.

In exemplary embodiments, the angle sensor is connected to a cargo scooter control and/or regulation system, wherein the angle sensor sends a steering angle signal to the cargo scooter control and/or regulation system based on the measured angle of the steering lock.

The load scooter control and/or regulation system can send a steering assistance command to the steering assistance, which causes the local motor to apply a pivoting moment to the wheel in question. The steering assistance can form a functional component of the load roller control and/or regulation system, or form a control or regulation section of the local motor.

• wobei die Lastenhalterung bevorzugt vor einem Lenker angeordnet ist, und
• wobei die Lastenhalterung konfiguriert ist wechselbar eine Lastenbox und/oder eine Fahrgastzelle zu halten.

In preferred embodiments of the electrically drivable load roller, the electrically drivable load roller can also comprise a load holder,

• wherein the load holder is preferably arranged in front of a handlebar, and
• wherein the cargo mount is configured to removably hold a cargo box and/or a passenger compartment.

The load holder can be arranged in front of the handlebar or in front of a steering device, in particular in the direction of travel. This advantageously allows the user to constantly assess the space requirement while the cargo scooter is being driven, and he also retains an overview of the goods being transported or the person being transported.

Because the load holder can hold a load box and/or a passenger compartment in an interchangeable manner, the present load scooter can cover a large number of suitable application scenarios, such as transporting children, sick people or other people, as well as transporting food, non-food, and other goods and especially packages.

In exemplary embodiments, the load holder can have a thermally insulating cooling receptacle in order to place cooling elements, such as cold packs, underneath a load box, in order in turn to be able to cool certain goods.

Additionally or alternatively, the load holder can have a heating element and/or cooling element or have a power connection for connecting a heating element and/or cooling element, for example, so that people and goods can be transported at a temperature that is comfortable for them or that is required.

In preferred embodiments of the electrically drivable load scooter, the electrically drivable load scooter can further comprise an actuatable locking element which is configured to releasably lock the front frame part and the rear frame part to one another when the load scooter is in a short state and/or in a long state.

The actuatable locking element can in particular be a substantially rod-shaped locking element which, when actuated, is configured to engage in a locking recess in order to releasably lock the front frame part and the rear frame part to one another.

In exemplary embodiments, the actuatable locking element can be arranged on the front frame part and can releasably lock the front frame part to the rear frame part by engaging in a locking recess formed or arranged on the rear frame part. However, the configuration of the cargo scooter with regard to the locking element is not limited to this, so that the locking element and the locking recess can also be arranged on the other of the front frame part and the rear frame part.

The locking recess can be arranged in particular on the front frame part or rear frame part in such a way that the locking element can only engage in it when the long state or the short state has been reached in a defined manner, for example by a gripping section which interacts with a grippable section and restricts or limits releasing movement of the front frame part and the rear frame part beyond a long state.

In preferred embodiments, the actuatable locking element can be accommodated in sections in a steering device of the cargo scooter and held in a specific position of the steering device by means of a spring element, such as a spring pin, and/or by means of a lever.

As a result, the user is advantageously able to recognize visually and/or haptically on the steering device whether the long state of the load roller is correctly locked or fixed. In addition, since the locking element that can be actuated is at least partially accommodated in the steering device, the load scooter has a configuration that is intuitive for the user and, moreover, slim and space-saving.

For example, at least one lamp and/or a display can be arranged on the steering device. The at least one lamp and/or the display can be configured, in particular, as a signal, such as an electrical signal, which is sent by a sensor or a load scooter control and/or regulation system, as a light signal, optical signal, warning, text message or the like play or display.

In further exemplary embodiments, the locking recess can have an insertion bevel, such as a ramp and/or a conical opening, in order to facilitate insertion of the locking element into the locking recess.

• in einem langen Zustand des Lastenrollers im Wesentlichen horizontal gehalten sein,
• wobei das Trittbrett bevorzugt magnetisch in dem kurzen Zustand und/oder in dem langen Zustand gehalten sein kann.

In preferred embodiments of the electrically drivable load scooter, the footboard can be kept pivoted essentially vertically when the load scooter is in a short state, and/or

• be kept essentially horizontal in a long state of the cargo scooter,
• wherein the footboard can preferably be held magnetically in the short state and/or in the long state.

In alternative embodiments, the footboard can be held in a direction deviating from a vertical direction when the load scooter is in the short state and/or in a direction deviating from a horizontal direction when the load scooter is in the long state.

Due to the fact that the footboard can be folded or pivoted, the load scooter can be provided in a geometry that is particularly space-saving when the load scooter is in a short state, and this also enables the load scooter to use available routes in buildings, such as elevators, corridors, doors and rooms To use transport routes that can be covered with the load roller.

In addition, for example, the rear frame part can be pushed into the front frame part at least in sections when the load scooter is in a short state, with the foldability or pivotability of the footboard allowing the footboard not to be pushed in when the load scooter is in a short state, which advantageously saves space in the front frame part and can therefore also be configured in a resource-saving manner, since the footboard is preferably wider than the rear frame part to ensure safe footing for the user.

In exemplary embodiments, the rear frame part can be inserted into the front frame part by a length which corresponds to approximately 0.7 to approximately 0.9 times the length of the running board.

Furthermore, the fact that the footboard can be folded or pivoted means that when the load scooter is in the long position, an advantageously wide footboard is provided for the user, which enables the user to sit or stand securely while the load scooter is being driven However, the short state of the load scooter has no influence whatsoever on the space-saving configuration for the load scooter, for example for transport in buildings.

By providing magnetic mounts for the running board in the short and/or long state, a passive running board holding system is advantageously provided which is particularly low-wear.

In addition or instead, the running board can be held or fixed mechanically, for example by latching, wedging or also by means of a lock in the long state and/or in the short state.

• ein höhenverstellbares Sitzelement und/oder
• ein gegenüber einer Längsrichtung des Lastenrollers neigbares Sitzelement aufweist.

In preferred embodiments of the electrically drivable load scooter, the electrically drivable load scooter can also comprise a seat device, with the seat device preferably

• a height-adjustable seat element and/or
• has a seat element that can be tilted in relation to a longitudinal direction of the load roller.

By providing a preferably adjustable seat device, a particularly ergonomic and also safe locomotion by means of the load scooter can be ensured.

In exemplary embodiments, the seat assembly may include a securing device, such as a buckled belt, for securing the user and/or a passenger.

Another aspect of the invention relates to a load scooter control and/or regulation system for a load scooter for controlling and/or regulating a drive and/or steering assistance of an electrically drivable load scooter according to one of the preceding aspects or according to one of the preceding preferred, alternative and exemplary ones embodiments.

• - ein Drehmoment zum Antreiben des Lastenrollers freizugeben, zu beschränken oder zu verweigern; und/oder
• - einen Lenkunterstützungsbefehl an eine Lenkunterstützung zu geben, um ein eine Lenkung bzw. eine Kurvenfahrt unterstützendes Verschwenkmoment auf eines der Räder aufzubringen; und/oder
• - einen Stromfluss hin zu einem Elektromotor freizugeben, zu beschränken oder zu unterbrechen.

The load roller control and/or regulation system can in particular be directly or indirectly connected to a large number of sensors and configured on the basis of a sensor signal:

• - To release, limit or deny a torque for driving the load scooter; and or
• - Giving a steering assistance command to a steering assistance system in order to apply a pivoting moment to one of the wheels that supports steering or cornering; and or
• - enable, restrict or interrupt a current flow to an electric motor.

Furthermore, the load scooter control and/or regulation system can be configured to display the respective states detected by the sensors. The recorded or detected states can be displayed in particular by means of one or more lamps and/or by means of a display. The display or the reproduction of a signal can, for example, include or be a light signal, an optical signal, a warning notice, a text message or the like.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

The present cargo scooter control and/or regulation system advantageously enables the cargo scooter according to the invention to be controlled and/or regulated in an ergonomic manner.

In exemplary embodiments, the cargo dolly may include a display that is connected to the cargo dolly control and/or regulation system and is configured to display and/or select various controlling and/or regulating functions to or for the user.

Furthermore, the load scooter control and/or regulation system can include a transmitter and/or receiver that allows remote control of the load scooter by means of an external device that includes a corresponding transmitter. The load roller control and/or regulation system can in particular include a Bluetooth, RFID, UMTS or other radio transmitter or receiver.

In addition, the load scooter control and/or regulation system can include a processor, a memory module and/or a computer in order to process signals, send commands to the drive and other peripherals of the load scooter and execute routes or computer programs.

• - Abfragen von zumindest einem von dem Trittbrettsensor, dem Hinterradschwenksensor und dem Winkelsensor gemäß einem der vorangehenden Aspekte bzw. Ausführungsformen; und
• - Steuern bzw. Regeln von zumindest einem von einem Antriebsmoment und/oder einem Verschwenkmoment in Antwort auf die Sensorabfrage.

A further aspect of the invention relates to a method for controlling and/or regulating an electrically operated cargo scooter, comprising the steps:

• - interrogating at least one of the footboard sensor, the rear wheel pivot sensor and the angle sensor according to any of the preceding aspects or embodiments; and
• - Controlling or regulating at least one of a drive torque and/or a pivoting torque in response to the sensor query.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

A further aspect of the invention relates to a computer program product, comprising instructions which, when the computer program product is executed by a computer, cause the latter to execute the method according to the preceding aspect or according to one of the preceding embodiments of the method.

The aspect(s) mentioned above, as well as their preferred, exemplary and alternative embodiments, relate equally to the present aspect.

Embodiments of the invention are described in more detail below with reference to the accompanying figures. It goes without saying that the present invention is not limited to these embodiments, and that individual features of the embodiments can be combined to form further embodiments within the scope of the appended claims.

• 1 eine perspektivische Ansicht einer erfindungsgemäßen Lastenrollers;
• 2 eine perspektivische Ansicht eines erfindungsgemäßen Lastenrollers von unten;
• 3 eine Schnittdarstellung eines erfindungsgemäßen Lastenrollers;
• 4 eine perspektivische Ansicht eines erfindungsgemäßen Lastenrollers mit nicht dargestelltem Trittbrett; und
• 5 eine perspektivische Ansicht eines Trittbretts eines erfindungsgemäßen Lastenrollers; und
• 6 eine weitere Schnittdarstellung eines erfindungsgemäßen Lastenrollers.

It shows:

• 1 a perspective view of a load roller according to the invention;
• 2 a perspective view of a load roller according to the invention from below;
• 3 a sectional view of a load roller according to the invention;
• 4 a perspective view of a load roller according to the invention with a non-illustrated footboard; and
• 5 a perspective view of a footboard of a load roller according to the invention; and
• 6 another sectional view of a load roller according to the invention.

1 shows an exemplary embodiment of a load roller 1 according to the invention in a perspective view. 1 shows the cargo scooter 1 in particular in a long state. As in 1 shown by way of example, the load scooter 1 can in particular have a seat device 80 and a footboard 70 so that a user can drive the load scooter 1 while sitting or standing.

How further in 1 shown, the load scooter can have, for example, a front axle which is arranged on a front frame part 10 of the load scooter 1 and a rear axle which is arranged on a rear frame part 50 of the load scooter 1 . For example, two front wheels 20 can be arranged on the front axle. A single rear wheel 60 can be arranged on the rear axle, for example. However, the load scooter 1 according to the invention is not limited to this, so that in alternative embodiments, for example, two rear wheels 60 can be arranged on the rear axle and a front wheel 20 can be arranged on the front axle, or that two wheels can be arranged on both the front axle and the rear axle can be arranged. Furthermore, the respective wheels can also be designed as twins or as twin wheels.

How further in 1 As can be seen, the load roller 1 can in particular have a container 12 which can be arranged or fixed, for example, on the front frame part 10 . The container 12 can be arranged or fixed in particular in the longitudinal direction I on a side of the front frame part 10 facing the user, in particular when the user is standing on the running board 70 .

The container 12 can in particular be configured to accommodate one or more rechargeable batteries in an exchangeable manner in order to make the load scooter 1 ready to cover a greater distance, which above all saves time compared to charging using the socket.

The container 12 can in particular be a closable container 12 which is provided with an opening and optionally with a flap or a lid, which is preferably secured by means of a lock 14, as in 2 indicated, can be locked on the container 12 against opening.

As continues in 1 shown, the load scooter 1 can have a steering device 30 which extends at least in sections essentially upwards or in the height direction h. The steering device 30 can have a link 34 at its upper end or at its upper end in the height direction h, which enables the user to steer the load scooter 1 or allows the load scooter 1 to corner on the basis of a steering angle by the user. As in 1 indicated by way of example, the handlebar 34 can be designed similar to a bicycle or motorcycle handlebar, which enables a user to control the load roller 1 in a particularly intuitive manner. In particular, handlebar 34 may include one or more brake controls, such as brake levers, one or more powertrain controls, such as a thumb throttle, one or more signal controls, such as a horn or bell, one or more lighting controls, one or more displays, and/or a or several input or operating elements which are suitable for acoustic and/or tactile input or operating, such as a microphone, touch display and/or a keyboard.

As in 1 shown, the steering device 30 can include a handlebar inclination adjustment 36, by means of which the inclination of a section of the steering device 30 above the handlebar inclination adjustment 36 or the inclination of the handlebar 34 relative to the longitudinal direction I, or in a plane spanned by the longitudinal direction I and the vertical direction h , can be set or adjusted. This enables the user to set or adjust the handlebar 34 in an advantageous ergonomic manner. Additionally or alternatively, the steering device 30 can have a handlebar height adjustment, which allows the handlebar 34 to be set or adjusted along the steering device 30, for example in the height direction h, which the user also an advantageous ergonomic adjustment of the handlebar 34 allows.

Equally, albeit in 1 not shown, the seat device 80 can have a seat height adjustment and/or a seat inclination adjustment, for example, in order to enable a user to sit or lean on the load scooter 1 ergonomically.

How finally further in 1 shown, the front frame part 10 in particular can comprise a load holder 11 which can be configured in particular to hold a load box and/or a passenger compartment (neither of which is shown). The load holder 11 can preferably comprise rail elements and/or resilient connecting elements and/or lattice elements in order to be able to reversibly attach load boxes and/or passenger compartments to it, as well as to attach load boxes and/or passenger compartments of a different construction using straps or belts. As in 1 shown, the load holder 11 can be formed in particular between two front wheels 20, so that the load scooter 1 has an advantageously low center of gravity when loaded, which in turn advantageously improves the driving stability, while the front wheels 20 can at the same time have a large wheel diameter, whereby the front wheels 20, and thus the load roller 1, advantageously insensitive to bumps are or is.

2 shows a further perspective view of an embodiment of a load roller 1 according to the invention, but essentially from an underside. 2 represents a cargo scooter 1 in a long state. As in 2 As can be seen, the load roller 1 can in particular have a front frame part 10 and a rear frame part 50, the front frame part 10 having received the rear frame part 50 in sections. The rear frame part 50 and the front frame part 10 can be configured to be displaceable with respect to one another, in particular be configured to be displaceable with respect to one another along the longitudinal direction I. While the long state of the load scooter 1 is a state in which the rear frame part 50 is pulled out or pulled out of the front frame part 10 to a maximum extent, i.e. up to an end point or stop, a short state of the load scooter 1 can be a state in which which the rear frame part 50 is inserted or received in the maximum, ie up to another end point or another stop, in or in the front frame part 10 . The partial accommodation of the rear frame part 50 in the front frame part 10 is not to be understood in such a way that a section of the rear frame part 50 is completely surrounded by the front frame part 10 , ie over the entire circumference. Rather, the rear frame part 50 can be received in the front frame part 10 in such a way that the received part of the rear frame part 50 is only partially or partially surrounded by the front frame part 10 . In alternative embodiments, i.e. not as in 2 shown, the front frame part 10 can also be accommodated at least in sections in the rear frame part 50 or the rear frame part 50 and front frame part 10 can engage in one another in sections or surround one another in sections. Further alternatively, the front frame part 10 and the rear frame part 50 can be arranged separately from one another and, for example, can be slid past one another.

How further in 2 to see, the long state of the cargo scooter 1 can be characterized in particular by the fact that the footboard 70 is in a state ready for a user to drive. In other words, the long state of the cargo scooter 1 can be characterized in that the footboard 70 is positioned on the cargo scooter 1 in such a way that a user can stand on it. The running board 70 can either run essentially horizontally or be inclined relative to a base of the cargo scooter 1 .

As in 2 shown, the footboard 70 can be supported or attached to the front frame part 10 with a front section in the longitudinal direction I and supported or attached to the rear frame part 50 with a rear section in the longitudinal direction I when the load scooter 1 is in the long state, whereby the footboard 70, in addition to the function of providing a secure step for the user, acts integrally as a relative fixing of the rear frame part 50 to the front frame part 10.

How from the 1 and 2 As can be seen, the running board 70 is generally, and in particular in the long or ready-to-drive state, arranged above the rear frame part 50 or supported by the rear frame part 50 located below it, at least in sections in the height direction h.

As in 2 shown, a fixing element 72 of the footboard 70 can be engaged with a fixing counter-element 52 of the rear frame part 50 in the long state. For example, the fixing element 72 can encompass the counter-fixing element 52 at least in sections, in particular clamp it in an encompassing manner at least in sections. The fixing element 72 can have or consist of hard rubber, for example, which makes it easier to clamp around and at the same time ensures a damping effect, so that the engagement between the fixing element 72 and the counter-fixing element 52 can also occur in the event of vibrations, for example caused by driving on a certain surface. not solve by itself.

Although not in 2 shown, the running board 70 can have, for example, two fixing elements 72 lying opposite one another in the width direction b, which can engage with a corresponding pair of counter fixing elements 52 . Alternatively, the running board 70 may also have any plurality of fasteners 72 engageable with a corresponding plurality of mating fasteners 52.

How through 2 indicated, the footboard 70 can in particular have a greater width in the width direction b than the rear frame part 50, as a result of which a sufficiently large footing surface is provided for a user, for example with a passenger. Furthermore, the rear frame part 50 can have a smaller width or a smaller cross section than the front frame part 10 in the area in which the running board 70 is supported in the long state. The cross section means in particular a cross section in the height direction h and in the width direction b of the load roller 1 and is representative of the dimensions of the rear frame part 50 in the height direction h and in the width direction b, which can in particular be smaller than those of the front frame part 10. This makes it possible that by folding up or pivoting the footboard 70 upwards , the rear frame part 50 can be pushed into the front frame part 10, in particular with a length in the range of about 0.7 times to about 0.9 times the running board 70 can be pushed into the front frame part 10. This advantageously enables the present cargo scooter 1 to be operated in a long state and in a short state, which is significantly shorter than the long state, so that the present cargo scooter 1 can be driven in the long state, in particular on roads and cycle paths. is suitable, while the short state is suitable for pushing, especially in buildings.

The pivoting or folding up of the footboard 70 can take place in particular about a joint mount 16, which accommodates a joint part 76 of the footboard 70, as shown in FIG 3 better shown.

How further in 2 As shown, one or more brackets 32 may be disposed on the container 12 and/or on the steering device 30 to hold the footboard 70 in the folded up or pivoted up state. The brackets 32 are in 2 only schematically outlined and can in particular include magnets, grippers, adapters or the like, which magnetically or mechanically hold the folded up or swiveled up footboard 70, and with the folded up or swiveled up footboard 70, for example, a push-push system or a Form push-pull system.

As continues in 2 shown, one or more locks 14 can be arranged on the container 12, which enable the container 12 to be securely locked. As a result, valuables belonging to a user 12, as well as interchangeable elements such as rechargeable batteries, or tokens for identifying a user can be securely protected against theft.

How further in 2 As shown, the rear frame member 50 may include a hinged opening 56 . The folding opening 56 can be arranged in particular in the vertical direction h above the rear wheel 60 . The folding opening 56 forms in particular an opening which connects an area in which the rear wheel 60 is arranged, i.e. essentially below the rear frame part 50, and an area in which the running board 70 is arranged, i.e. essentially above the rear frame part 50.

The folding opening 56 is configured in particular by a rear wheel release device 74, in particular by a rolling element of the rear wheel release device 74, which is arranged on the running board 70 and in 3 better seen is to be happened. The folding opening 56 can preferably be passed by the rear wheel release device 74 when the load scooter 1 changes to a short state or shortly before reaching the short state, and when the footboard 70 is in a folded up or pivoted state, i.e. in a not in a drivable condition.

In the long state of the cargo scooter 1, the folding opening 56 can be closed in particular by a rear wheel safety device 62 that can be deflected in a resilient manner, in particular by an actuating section 64 of the rear wheel safety device 62 that can be deflected in a resilient manner. The resiliently deflectable rear wheel safety device 62 or its actuating section 64 can, in the long state of the cargo scooter 1 in particular configured at least in sections, adjoin, abut or touch the section of the rear frame part 50 surrounding the folding opening 56 . This advantageously prevents dirt from being thrown from the rear wheel 60 through the folding opening 56 and possibly towards the user when the load scooter 1 is in the long state.

Further details on the resiliently deflectable rear wheel safety device 62 are shown in the sectional view in 3 illustrates, which shows a perspective view of a section along the height direction h and the longitudinal direction I of the load roller 1.

3 shows the function thereof, the rear wheel safety device 62, which can be deflected in a resilient manner, in a deflected position. In other words shows 3 the resettable off steerable rear wheel securing device 62 in a position which the resiliently deflectable rear wheel securing device 62 assumes when it is deflected or actuated by the rear wheel release device 74 . At the same time is in 3 the rear wheel release device 74 is shown with the footboard 70 in a ready-to-drive position of the footboard 70 . In other words, the rear wheel release device 74 is in 3 however, it is shown in a position in which it has not yet actuated the rear wheel safety device 62 which can be deflected in a resilient manner. This is only for the sake of clarity.

If only the rear wheel safety device 62 is mentioned below, this should always be understood to mean the rear wheel safety device 62 that can be deflected in a resilient manner.

As in 3 in the area of rear wheel 60, rear wheel securing device 62 can have, in particular, a groove element 66 which is configured to engage with a securing projection 67 when rear wheel securing device 62 is in a non-deflected state, so that the pivotability of rear wheel 60, i.e. the rotatability of the The rear wheel 60 is restricted or blocked about a vertical axis HA, depending on the design of the engagement between the groove element 66 and the securing projection 67 .

As in 3 As shown, the securing projection 67 can be arranged on or connected to the rear wheel 60 . The rear wheel 60 can in particular be arranged on a rear wheel suspension 61 or fastened thereto, the rear wheel suspension 61 preferably being mounted on the rear frame part 50 so as to be rotatable about a vertical axis HA in order in principle to allow the rear wheel 60 to pivot. The vertical axis HA can, for example, run approximately parallel to the vertical direction h of the cargo scooter, thereby enabling rear wheel 60 to pivot in a plane perpendicular to the vertical axis HA, roughly spanned by the longitudinal direction I and the width direction b of the cargo scooter 1.

The securing projection 67 is preferably arranged on the wheel suspension 61 . The rear wheel securing device 62 is preferably mounted in a resilient manner on the rear frame part 50 . The rear wheel securing device 62 is preferably prestressed in such a way that it or an actuating section 64 arranged on it presses against the section of the rear frame part 50 surrounding the folding opening 56 when the load scooter 1 is in the extended position and the folding opening 56 closes. The groove element 66 can, for example, as in 3 indicated, be formed integrally on the rear wheel safety device 62, or be fixed thereto, so that a deflection of the actuating section 64 of the rear wheel safety device 62 causes a deflection of the groove element 66 of the rear wheel safety device 62. As in 3 indicated, the rear wheel securing device 62 can be mounted on the rear frame part 50 in a resiliently rotating manner so that a rotational deflection of the actuating section 64, in particular by means of the rear wheel release device 74, which passes through the folding opening 56, causes a rotation of the groove element 66 and an engagement between the groove element 66 and the locking projection 67 solves, whereby the pivoting of the rear wheel 60 is released.

As in 3 shown, the center of the rear wheel 60 and the securing projection 67 can preferably be arranged on the rear wheel suspension 61 in such a way that they are arranged on the same side with respect to the vertical axis HA and spaced apart from the vertical axis HA. This advantageously enables the rear wheel 60 to assume a position when driving backwards or backwards, in which the rear wheel 60 assumes an essentially straight orientation along the longitudinal direction I and the center point of the rear wheel 60 is further forward in relation to the vertical axis HA in the longitudinal direction I is arranged. In order to be able to be actuated easily by the rear wheel release device 74 of the running board 70, the rear wheel release device 74 is also arranged further forward in the longitudinal direction I than the vertical axis HA of the rear wheel suspension 61 when the cargo scooter 1 is in the short state. This preferred arrangement allows the rear wheel safety device 62 to Securing projection 67 in a safe way, starting from a short state of the load roller 1 and at a transition of the load roller 1 in the long state, grab.

This ensures an advantageously safe transition of the load scooter 1 from a short state to a long state that is easy for the user, with the short state enabling in particular transport routes that can be located in buildings, for example by pushing the load scooter, and the long state enabling journeys at higher speeds, such as on roads.

In exemplary embodiments, the cargo scooter 1 may include a cargo scooter control and/or regulation system that allows the user to execute or have executed a transition routine for transitioning the cargo scooter 1 from the short state to the long state, exiting the short state and the long state is achieved by preferably moving the rear wheel 60 rearwardly in the direction of travel and more preferably the front wheel 20 or wheels 20 fixed be made while the rear wheel 60 is moved backwards in the direction of travel.

How further in 3 As shown, a rear wheel pivoting sensor 94 for detecting whether the groove element 66 and the securing projection 67 are engaged can be arranged on the rear frame part 50 or preferably on the rear wheel securing device 62 . Specifically, the rear wheel pivot sensor 94 may be a proximity sensor in exemplary embodiments. Furthermore, the rear wheel swivel sensor can be connected in particular to the load scooter control and/or regulation system, for example to limit or prevent the drive of the load scooter 1 when the groove element 66 and the securing projection 67 are not engaged, in order to avoid an unstable driving situation with a free pivoting rear wheel 60 to avoid.

How further in 3 shown, the footboard 70, in particular at its front end in the longitudinal direction I, can be arranged rotatably or pivotably by means of a joint part 76 of the footboard 70 on a joint receptacle 16 of the front frame part 10. The joint part 76 with the joint mount 16 can in particular allow the footboard 70 to be rotated or pivoted about a transverse axis, which essentially runs in the width direction b of the load roller 1 .

As continues in 3 shown, the rear frame part 50 can in particular have a recess for the rear wheel release device 74, which is arranged on the running board 70, so that the rear wheel release device 74 can be accommodated in the recess and is preferably housed by the rear frame part 50 when the running board 70 is in a ready-to-drive position is.

The recess of the rear frame part 50 can form a ramp section 44 in sections, which is configured to guide the footboard 70 upwards when it is folded up or pivoted. The ramp portion 44 may also provide support for the rear wheel release device 74 during the raising or pivoting of the footboard 70, thereby advantageously facilitating the raising or pivoting of the footboard 70 for the user.

As in 3 indicated in the rear area of the footboard 70 in the longitudinal direction I, one or more footboard sensors 90 can be arranged on the rear frame part 50, below the footboard 70. The footboard sensor(s) 90 can, for example, comprise at least one weight sensor 91 and/or at least one proximity sensor. The footboard sensor(s) 90 can in particular be configured to detect a load state and, additionally or alternatively, a load state of the footboard 70 . The footboard sensor(s) 90 can in particular be connected to a load roller control and/or regulation system, so that when a load state or a load state is detected, for example, a drive of the load roller 1 can be prevented, limited or enabled.

As continues in 3 shown, in the steering device 30, which is preferably arranged in front of the running board 70 in the longitudinal direction I, a locking element 38, in particular an actuatable locking element 38, can be accommodated at least in sections therein. The operable locking element 38 can, as in 3 highlighted, be essentially rod-shaped. How not in 3 shown, the locking means can be arranged on or in the steering device 30 in a height-adjustable manner, preferably by means of an actuatable lever, pin or knob.

The actuatable locking element 38 is preferably configured to engage in a locking recess 47 in the long state and/or in the short state of the load scooter 1 and thereby to lock or fix the load scooter 1 in the respective state. The actuatable locking element 38 preferably comes into releasable engagement with the locking recess 47, the user preferably being able to use the same actuatable lever, pin or knob as for locking.

The locking element 38 can in particular be embodied as a steel rod or steel tube, and preferably at least partially accommodated in the steering device 30, which can be embodied in particular as a steel tube.

In preferred embodiments and as in 3 shown, the steering device 30, and thus the locking element 38, is arranged or attached to the front frame part 10, so that for locking a long or short state of the load roller 1, the locking recess 47 is preferably arranged or formed on the rear frame part 50.

The locking recess 47 can in particular be formed by a reinforcing element 46 which is not formed integrally with the frame part on which the locking recess 47 is arranged, but in particular can be an element which is stronger than the frame part or which can comprise or have a stronger material, such as for example a sheet steel or a stainless steel sheet. In exemplary embodiments the front frame part 10 and the rear frame part 50 can have or consist of steel or aluminum. The reinforcing element 46 having the locking recess 47 can have or be made of a metal that is stronger than that, in particular steel. Furthermore, the reinforcing element 46 having the locking recess 47 can have a guide bevel, which prevents the locking element 38 from abruptly striking the reinforcing element 46, in particular if the height-adjustable locking element 38 is set or actuated at an incorrect height, so that the wear on the locking element 38, and the associated increasing inaccuracy when locking the front frame part to the rear frame part is advantageously prevented.

How further in 3 shown, below the one or more locking recesses 47 there can be a locking sensor 92 for detecting whether the locking element 38 is in the locking recess 47 on the respective frame part. The locking sensor 92 can in particular be an optical sensor or a proximity sensor, with 3 the latter is shown as an example. The locking sensor 92 for detecting the locking intervention can in particular be connected to the load roller control and/or regulation system. This advantageously makes it possible, depending on whether the locking element 38 engages in a locking recess 47 to lock or unlock the short or long state of the load roller 1, in particular to prevent, limit or release a drive of the load roller 1.

4 shows a further perspective view of a load roller 1 according to the invention, wherein the footboard 70 is not shown.

As in 4 1, a reinforcement member 46 is disposed at an upper surface of the rear frame member 50 and has the locking recess 47 configured with the locking member 38 shown in 3 shown to engage. From the synopsis of 3 and 4 it becomes clear that the in 3 and 4 locking recess 47 shown by way of example and the locking element 38 can engage in particular when the rear frame part 50 is pushed forward by a corresponding amount in the longitudinal direction I, along the front frame part 10 . The reinforcing element 46 preferably has a guide bevel, so that the reinforcing element 46 is preferably shaped in such a way that, following the longitudinal direction I, it assumes a lower height, measured in the height direction h. As a result, even if the locking element 38 is adjusted to a height that is too low to engage in the locking recess 47, the locking element 38 can advantageously be guided along the guiding slope. As a result, further wear and tear on the locking element 38 and on the frame part on which the locking recess 47 is arranged can be reduced or avoided.

Further in 4 the footboard sensor 90 can be seen, which can be a weight sensor 91, for example, but can also be another sensor, such as an optical sensor, proximity sensor or contact sensor. The running board sensor 90 is configured, in particular, to recognize or detect a load state and/or a load state of the running board 70 . Preferably, the footboard sensor 90 is connected to the cargo scooter control and/or regulation system. Based on the detection of a load state or a load state, the load roller control and/or regulation system can be used, for example, to prevent, limit or release a drive of the load roller. Furthermore, based on the detection in particular of a relief state, the load roller control and/or regulation system can activate one or more wheel brakes, for example, in order to reduce the speed of the load roller 1 to zero, in particular after a user and/or a passenger of the user has dismounted. Furthermore, the cargo scooter control and/or regulation system can be configured to require a confirmatory input from the user when a load relief condition is detected in order to release or deactivate one or more wheel brakes in order to allow the user to push the cargo scooter 1 .

5 shows an exemplary running board 70 of a load roller 1 according to the invention. Essentially, an underside of the running board 70 can be seen 1 until 3 in the installed state, ie arranged on the load roller 1, is shown.

on 5 In the region of running board 70 shown as the upper end, running board 70 has one or more fixing elements 72, which are configured in particular to engage counter-fixing elements 52, which are arranged on rear frame part 50, in order to fix running board 70 in a ready-to-drive state on the To arrange rear frame part 50 detachably or to fix it detachably.

The fixing elements 72 are in 5 formed, for example, in the form of a groove, so that they are configured to encompass at least sections of a counter-fixing element 52 . However, the fixing members 72 and the mating fixing members 52 are not limited to the illustrated shapes, and each may have the shape of the other.

Fastening elements 72 can preferably have or consist of hard rubber, which advantageously produces a clamping effect and a damping effect when engaging with counter-fastening elements 52, which on the one hand enables footboard 70 to be securely fixed in place and at the same time enables a relief effect on the user because Vibrations towards the user stepping on the running board 70 are damped.

The running board 70 can further have any number of fixing elements 72, which can be connected via the two in 5 fixing elements 72 shown goes beyond, or only a single fixing element 72 have.

At the other end of footboard 70, footboard 70 preferably has a joint part 76, which is configured to form a pivot joint with a joint mount 16, which can be arranged, for example, on front frame part 10, preferably with an axis of rotation in the transverse direction or essentially in Width direction b of the load roller 1. In exemplary embodiments and as in FIG 5 As shown, the hinge portion 76 may be generally rod-shaped.

How further in 5 shown, the running board 70 can have a rear wheel release device 74 which, in particular, forms a projection relative to an underside of the running board 70 . Specifically, the rear wheel release device 74 is disposed on the underside of the footboard 70 , and is disposed on the footboard 70 near the hinge portion 76 . The rear wheel release device 74 is arranged on the footboard 70 in particular in such a way that the rear wheel release device 74, when the footboard 70 is in a folded-up or pivoted state and the cargo scooter 1 is still in a short state, can deflect the rear-wheel safety device 62 or in such a way to actuate that the pivoting of the rear wheel 60 is released. The rear wheel release device 74 can be configured in particular in the 2 and 4 to pass through or penetrate the folding opening 56 shown in such a way that it rotationally deflects an actuating section 64 or an actuating plate of the rear wheel securing device 62 about a transverse axis, which causes a corresponding deflection or rotation of a groove element 66, whereby the groove element 66 of the rear wheel securing device 62 and a with the rear wheel 60 associated securing projection 67 disengaged, so that the pivoting of the rear wheel 60 is released.

As in 5 makes clear, the rear wheel release device 74 can in particular have a sliding element and/or a rolling element, as a result of which particularly gentle and low-wear actuation of the rear wheel safety device 62 or of the actuation section 64 of the rear wheel safety device 62 is made possible. In addition, a sliding element and/or rolling element advantageously supports the folding up or upward pivoting of the footboard 70, in particular by supporting it by means of a ramp section 44 on the rear frame part 50, by reducing the force to be applied by the user and at the same time reducing friction between the rear wheel release device 74 and the rear frame part 50 is reduced or minimized.

6 shows a further perspective view of a sectional illustration of a load scooter 1 according to the invention, the section running essentially along the longitudinal direction 1 and the height direction h of the load scooter 1 . 6 FIG. 12 shows the long state of the load roller 1 by way of example, with the front frame part 10 and the rear frame part 50 being in a state that is maximally extended relative to one another or pushed apart in the longitudinal direction I.

As in 6 shown, the rear frame part 50 can have a gripping section 58 which has a groove or recess which increases in relation to the longitudinal direction l of the load roller 1 and is closed in the longitudinal direction l of the load roller 1 . The front frame part 10 preferably has a grippable section 18 which is complementary to the gripping section 58 of the rear frame part 50 and which is configured to be gripped by the gripping section 58, in particular to be gripped rotatably.

By the gripping section 58 having a groove or recess, which increases in size in the opposite direction to the longitudinal direction l of the load roller 1, a secure gripping of the grippable section 18 is advantageously facilitated when the front frame part 10 and the rear frame part 50 are moved into the long state . The rotatable gripping of the grippable section 18 by the gripping section 58 also makes it easier for a second support point, formed from a support element 19 of the front frame part 10 and a support section 59 of the rear frame part 59, without exact geometric specifications partially formed by the rotational degree of freedom resulting from the first support point itself, and further twisting of the front frame part 10 against the rear frame part 50 is prevented or blocked.

The support element 19 is preferably arranged or fastened on the front frame part 10 , counter to the longitudinal direction I of the load roller 1 , at a distance from the grippable section 18 . The support section 59 is preferably arranged or fastened on the rear frame part 50, counter to the longitudinal direction l of the load roller 1, at a distance from the gripping section 58. Consequently, the first support point, consisting of gripping section 58 and grippable section 18, and the second support point, consisting of support element 19 and support section 59, advantageously form two points or support points spaced apart from one another in the longitudinal direction I, through which buckling of the load roller 1, particularly when loaded by a user, is avoided, and the front frame part 10 and the rear frame part 50 also support and stiffen one another. In order to reliably ensure mutual support, the two spaced points or support points are preferably at least approximately 6 cm apart. Depending on the dimensioning of the frame part, smaller distances can also be realized, but this means that the front frame part 10 and the rear frame part 50 must have a greater wall thickness in order to provide a sufficiently rigid load roller 1 .

The gripping section 58 preferably forms integrally with the grippable section 18 a stop which defines a maximum extension or withdrawal of the rear frame part 50 from the front frame part 10 .

How further in 6 shown, the front frame part 10 and the rear frame part 50 can be mounted in particular by means of a rail system 40 to be displaceable with respect to one another.

1. 1. Elektrisch antreibbarer Lastenroller (1), umfassend:
   • - eine Vorderachse mit zumindest einem Vorderrad (20), wobei die Vorderachse an einem Vorderrahmenteil (10) angeordnet ist;
   • - eine Hinterachse mit zumindest einem Hinterrad (60), wobei die Hinterachse an einem Hinterrahmenteil (50) angeordnet ist;
     • -- wobei der Lastenroller (1) einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) angeordnet ist; und
   • - ein Trittbrett (70);
   dadurch gekennzeichnet, dass
   • • -- das Trittbrett (70) eine Hinterradfreigabeeinrichtung (74) aufweist, welche konfiguriert ist, im kurzen Zustand des Lastenrollers (1) eine Schwenkbarkeit des zumindest einen Hinterrads (60) freizugeben.
2. 2. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 1, wobei das Hinterrahmenteil (50) eine rückstellfähig auslenkbare Hinterradsicherungseinrichtung (62) aufweist, welche das zumindest eine Hinterrad (60) in einem langen Zustand des Lastenrollers (1) gegen ein Verschwenken sichert.
3. 3. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 2, wobei das Trittbrett (70) im kurzen Zustand des Lastenrollers (1) gegenüber dem langen Zustand des Lastenrollers (1) verschwenkt ist, und wobei die Hinterradfreigabeeinrichtung (74) des Trittbretts (70) im kurzen Zustand des Lastenrollers (1) konfiguriert ist, die rückstellfähig auslenkbare Hinterradsicherungseinrichtung (62) auszulenken, um die Schwenkbarkeit des Hinterrads (60) freizugeben.
4. 4. Elektrisch antreibbarer Lastenroller (1) nach einer der Ausführungsformen 2 oder 3, wobei die rückstellfähige auslenkbare Hinterradsicherungseinrichtung (62) ein rückstellfähig klappbares Nutelement (66) aufweist, wobei ein Sicherungsvorsprung (67) an dem zumindest einen Hinterrad (60) angeordnet ist, und wobei im langen Zustand des Lastenrollers (1) der Sicherungsvorsprung (67) zumindest abschnittsweise in das rückstellfähig klappbare Nutelement (66) eingreift.
5. 5. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 4, wobei ein Hinterradschwenksensor (94) im Bereich des rückstellfähig klappbaren Nutelements (66) angeordnet ist und konfiguriert ist, ein zumindest abschnittsweises Eingreifen des Sicherungsvorsprungs (67) zu detektieren und/oder ein Nicht-Eingreifen des Sicherungsvorsprungs (67) zu detektieren.
6. 6. Elektrisch antreibbarer Lastenroller (1) nach einer der Ausführungsformen 2 bis 5, wobei das Hinterrahmenteil (50) eine Klappöffnung (56) aufweist, welche im langen Zustand des Lastenrollers (1) durch einen Betätigungsabschnitt (64) der rückstellfähig auslenkbaren Hinterradsicherungseinrichtung (62) verschlossen ist.
7. 7. Elektrisch antreibbarer Lastenroller (1) nach einer der Ausführungsformen 2 bis 6, wobei das Trittbrett (70) zumindest ein Festlegungselement (72) aufweist, welches konfiguriert ist, mit zumindest einem Festlegungsgegenelement (52) des Hinterrahmenteils (50) in Eingriff zu gelangen und den langen Zustand des Lastenrollers (1) zu sichern.
8. 8. Elektrisch antreibbarer Lastenroller (1), umfassend:
   • - eine Vorderachse mit zumindest einem Vorderrad (20), wobei die Vorderachse an einem Vorderrahmenteil (10) angeordnet ist, und wobei das zumindest eine Vorderrad (20) schwenkbar an dem Vorderrahmenteil (10) angeordnet ist;
   • - eine Hinterachse mit zumindest einem Hinterrad (60), wobei die Hinterachse an einem Hinterrahmenteil (50) angeordnet ist;
     • -- wobei der Lastenroller einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) angeordnet ist;
   dadurch gekennzeichnet, dass
   • • -- im kurzen Zustand des Lastenrollers (1) die Schwenkbarkeit des zumindest einen Vorderrads (20) eingeschränkt ist, insbesondere blockiert ist, bevorzugt mechanisch blockiert ist.
9. 9. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 8, wobei die Schwenkbarkeit des zumindest einen Vorderrads (20) im kurzen Zustand des Lastenrollers (1) auf einen Bereich von etwa 0° bis etwa 5° eingeschränkt ist, bevorzugt auf einen Bereich von etwa 0° bis etwa 2° eingeschränkt ist und besonders bevorzugt vollständig blockiert ist.
10. 10. Elektrisch antreibbarer Lastenroller (1), umfassend:
    • - ein Trittbrett (70);
    wobei der elektrisch antreibbare Lastenroller (1) charakterisiert ist durch
    • - einen Trittbrettsensor (90), welcher konfiguriert ist ein Signal in einem Belastungszustand des Trittbretts (70) abzugeben und/oder ein Signal in einem Entlastungszustand des Trittbretts (70) abzugeben; und
    • - ein Lastenrollersteuerungs- und/oder -regelungssystem, welches mit dem Trittbrettsensor (90) verbunden ist;
      • -- wobei das Lastenrollersteuerungs- und/oder -regelungssystem konfiguriert ist, einen Antrieb des Lastenrollers (1) an den Belastungszustand bzw. Entlastungszustand anzupassen.
11. 11. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 10, wobei der Trittbrettsensor (90) einen Gewichtssensor (91) umfasst, welcher ab und/oder unterhalb eines vorbestimmten Gewichts, den Belastungszustand bzw. den Entlastungszustand des Trittbretts (70) erkennt, und/oder wobei der Trittbrettsensor (90) einen Näherungssensor umfasst, welcher bei einer vorbestimmten Näherungsposition des Trittbretts (70) und/oder in Abwesenheit einer vorbestimmten Näherungsposition, resultierend aus einer Belastung bzw. Entlastung des Trittbretts (70), den Belastungszustand bzw. den Entlastungszustand des Trittbretts (70) erkennt.
12. 12. Elektrisch betreibbarer Lastenroller (1), umfassend:
    • - eine Vorderachse mit zumindest einem Vorderrad (20), wobei die Vorderachse an einem Vorderrahmenteil (10) angeordnet ist; und
    • - eine Hinterachse mit zumindest einem Hinterrad (60), wobei die Hinterachse an einem Hinterrahmenteil (50) angeordnet ist;
      • -- wobei der Lastenroller (1) einen kurzen Zustand aufweist, in dem eines von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) zumindest abschnittsweise in dem anderen von dem Hinterrahmenteil (50) und dem Vorderrahmenteil (10) angeordnet ist;
      dadurch gekennzeichnet, dass
    • - im langen Zustand des Lastenrollers (1), das Hinterrahmenteil (50) und das Vorderrahmenteil (10) konfiguriert sind, sich an in Längsrichtung (I) des Lastenrollers (1) zueinander beabstandeten Stellen abzustützen.
13. 13. Elektrisch betreibbarer Lastenroller (1) nach Ausführungsform 12, wobei eines von dem Vorderrahmenteil (10) und dem Hinterrahmenteil (50) einen Greifabschnitt (58) aufweist, und das andere von dem Vorderrahmenteil (10) und dem Hinterrahmenteil (50) einen greifbaren Abschnitt (18) aufweist, wobei der Greifabschnitt (58) konfiguriert ist, den greifbaren Abschnitt (18) drehbar zu greifen, und wobei ein Abstützabschnitt das Vorderrahmenteil (10) und das Hinterrahmenteil (50) gegen ein Verdrehen abstützt.
14. 14. Elektrisch betreibbarer Lastenroller (1) nach einer der Ausführungsformen 12 oder 13, wobei der Greifabschnitt (58) integral als Sicherung gegen ein Lösen des Hinterrahmenteils (50) von dem Vorderrahmenteil (10) in Vorwärts-Rückwärts-Richtung wirkt.
15. 15. Elektrisch betreibbarer Lastenroller (1) nach einer der Ausführungsformen 12 bis 14, wobei die zueinander beabstandeten Abschnitte zumindest einen Abstand von etwa 6 cm aufweisen.
16. 16. Elektrisch antreibbarer Lastenroller (1), umfassend:
    • - eine Vorderachse mit zumindest einem Vorderrad (20);
    • - eine Hinterachse mit zumindest einem Hinterrad (60); und
    • - einen Lenker (34) zum Verschwenken von einem von dem zumindest einen Vorderrad (20) oder dem zumindest einen Hinterrad (60);
    wobei der elektrisch antreibbare Lastenroller (1) charakterisiert ist durch
    • - eine Lenkunterstützung, welche konfiguriert ist, ein Verschwenken des zumindest einen Vorderrads (20) und/oder des zumindest einen Hinterrads (60) durch Aufbringen eines Verschwenkmoments mittels eines Lokalmotors an dem zumindest einen Vorderrad (20) und/oder dem zumindest einen Hinterrad (60) zu unterstützen.
17. 17. Elektrisch antreibbarer Lastenroller (1) nach Ausführungsform 16, ferner umfassend:
    • - einen Winkelsensor, wobei die Lenkunterstützung konfiguriert ist, das Verschwenkmoment in Abhängigkeit eines Signals des Winkelsensors aufzubringen.
18. 18. Elektrisch betreibbarer Lastenroller (1) nach einer der vorangehenden Ausführungsformen, ferner umfassend eine Lastenhalterung (11), wobei die Lastenhalterung (11) bevorzugt vor einem Lenker (34) angeordnet ist, und wobei die Lastenhalterung (11) konfiguriert ist wechselbar eine Lastenbox und/oder eine Fahrgastzelle zu halten.
19. 19. Elektrisch betreibbarer Lastenroller (1) nach einer der vorangehenden Ausführungsformen, ferner umfassend ein betätigbares Verriegelungselement (38), welches konfiguriert ist, das Vorderrahmenteil (10) und das Hinterrahmenteil (50) in einem kurzen Zustand und/oder in einem langen Zustand des Lastenrollers (1) zueinander lösbar zu verriegeln.
20. 20. Elektrisch betreibbarer Lastenroller (1) nach einer der vorangehenden Ausführungsformen, wobei das Trittbrett (70) in einem kurzen Zustand des Lastenrollers (1) im Wesentlichen vertikal verschwenkt gehalten ist, und/oder in einem langen Zustand des Lastenrollers (1) im Wesentlichen horizontal gehalten ist, wobei das Trittbrett (70) bevorzugt magnetisch in dem kurzen Zustand und/oder in dem langen Zustand gehalten ist.
21. 21. Elektrisch betreibbarer Lastenroller (1) nach einer der vorangehenden Ausführungsformen, umfassend eine Sitzvorrichtung (80), wobei die Sitzvorrichtung (80) vorzugsweise ein höhenverstellbares Sitzelement und/oder ein gegenüber einer Längsrichtung (I) des Lastenrollers (1) neigbares Sitzelement aufweist.
22. 22. Lastenrollersteuerungs- und/oder -regelungssystem für einen Lastenroller (1) zur Steuerung und/oder Regelung eines Antriebs und/oder einer Lenkunterstützung eines elektrisch antreibbaren Lastenrollers (1) nach einer der Ausführungsformen 1 bis 21.
23. 23. Verfahren zur Steuerung und/oder Regelung eines elektrisch betreibbaren Lastenrollers (1), umfassend die Schritte:
    • - Abfragen von zumindest einem von dem Trittbrettsensor (90), dem Hinterradschwenksensor (94) und dem Winkelsensor gemäß einer der vorangehenden Ausführungsformen; und
    • - Steuern bzw. Regeln von zumindest einem von einem Antriebsmoment und/oder einem Verschwenkmoment in Antwort auf die Sensorabfrage.
24. 24. Computerprogrammprodukt, umfassend Befehle, die bei der Ausführung des Computerprogrammprodukts durch einen Computer, diesen veranlassen, das Verfahren nach Ausführungsform 23 auszuführen.

The present disclosure further relates to the following embodiments belonging to the invention:

1. 1. Electrically drivable cargo scooter (1), comprising:
   • - A front axle with at least one front wheel (20), the front axle being arranged on a front frame part (10);
   • - A rear axle with at least one rear wheel (60), the rear axle being arranged on a rear frame part (50);
     • -- wherein the load roller (1) has a short state in which one of the rear frame part (50) and the front frame part (10) is at least partially arranged in the other of the rear frame part (50) and the front frame part (10); and
   • - a running board (70);
   characterized in that
   • • - The running board (70) has a rear wheel release device (74) which is configured to release pivotability of the at least one rear wheel (60) in the short state of the load scooter (1).
2. 2. Electrically drivable cargo scooter (1) according to embodiment 1, wherein the rear frame part (50) has a rear wheel safety device (62) which can be deflected in a resilient manner and which secures the at least one rear wheel (60) against pivoting when the cargo scooter (1) is in a long state.
3. 3. Electrically drivable cargo scooter (1) according to embodiment 2, wherein the footboard (70) is pivoted in the short state of the cargo scooter (1) relative to the long state of the cargo scooter (1), and wherein the rear wheel release device (74) of the footboard (70) is configured in the short state of the load scooter (1) to deflect the resiliently deflectable rear wheel safety device (62) in order to release the pivoting of the rear wheel (60).
4. 4. Electrically drivable cargo scooter (1) according to one of the embodiments 2 or 3, wherein the resilient, deflectable rear wheel securing device (62) has a resiliently foldable groove element (66), with a securing projection (67) being arranged on the at least one rear wheel (60), and wherein when the load roller (1) is in the extended position, the securing projection (67) engages at least in sections in the resiliently foldable groove element (66).
5. 5. Electrically drivable cargo scooter (1) according to embodiment 4, wherein a rear wheel swivel sensor (94) is arranged in the area of the resiliently foldable groove element (66) and is configured to detect at least partial engagement of the securing projection (67) and/or a non- To detect engagement of the securing projection (67).
6. 6. Electrically drivable cargo scooter (1) according to one of embodiments 2 to 5, wherein the rear frame part (50) has a folding opening (56) which, when the cargo scooter (1) is in the extended position, can be opened by an actuating section (64) of the resiliently deflectable rear wheel safety device (62 ) is locked.
7. 7. Electrically drivable cargo scooter (1) according to one of the embodiments 2 to 6, wherein the footboard (70) has at least one fixing element (72) which is configured to engage with at least one counter-fixing element (52) of the rear frame part (50). and to secure the long state of the cargo scooter (1).
8. 8. Electrically drivable cargo scooter (1), comprising:
   • - A front axle with at least one front wheel (20), wherein the front axle is arranged on a front frame part (10), and wherein the at least one front wheel (20) is arranged pivotably on the front frame part (10);
   • - A rear axle with at least one rear wheel (60), the rear axle being arranged on a rear frame part (50);
     • -- wherein the load roller has a short state in which one of the rear frame part (50) and the front frame part (10) is at least partially arranged in the other of the rear frame part (50) and the front frame part (10);
   characterized in that
   • • - In the short state of the load roller (1), the pivoting of the at least one front wheel (20) is restricted, in particular blocked, preferably mechanically blocked.
9. 9. Electrically driven cargo scooter (1) according to embodiment 8, wherein the pivotability of the at least one front wheel (20) in the short state of the cargo scooter (1) is restricted to a range from about 0° to about 5°, preferably to a range of about 0° to about 2° and most preferably fully blocked.
10. 10. Electrically drivable cargo scooter (1), comprising:
    • - a running board (70);
    wherein the electrically drivable load roller (1) is characterized by
    • - A footboard sensor (90), which is configured to emit a signal when the footboard (70) is under load and/or to emit a signal when the footboard (70) is relieved; and
    • - a cargo scooter control and/or regulation system connected to the footboard sensor (90);
      • -- wherein the load roller control and/or regulation system is configured to adapt a drive of the load roller (1) to the load state or load state.
11. 11. Electrically drivable cargo scooter (1) according to embodiment 10, wherein the footboard sensor (90) comprises a weight sensor (91) which detects the loading state or the relief state of the footboard (70) from and/or below a predetermined weight, and/or or wherein the running board sensor (90) comprises a proximity sensor which, when the running board (70) is in a predetermined proximity position and/or in the absence of a predetermined proximity position, resulting from a load or unloading of the running board (70), the loading state or the unloading state of the Footboard (70) detects.
12. 12. Electrically operated cargo scooter (1), comprising:
    • - A front axle with at least one front wheel (20), the front axle being arranged on a front frame part (10); and
    • - A rear axle with at least one rear wheel (60), the rear axle being arranged on a rear frame part (50);
      • -- wherein the load roller (1) has a short state in which one of the rear frame part (50) and the front frame part (10) is at least partially arranged in the other of the rear frame part (50) and the front frame part (10);
      characterized in that
    • - In the long state of the load roller (1), the rear frame part (50) and the front frame part (10) are configured to be supported in the longitudinal direction (I) of the load roller (1) at mutually spaced locations.
13. The electrically operated cargo dolly (1) according to embodiment 12, wherein one of the front frame part (10) and the rear frame part (50) has a gripping portion (58), and the other of the front frame part (10) and the rear frame part (50) has a grippable one portion (18), wherein the gripping portion (58) is configured to rotatably grip the grippable portion (18) and wherein a support portion supports the front frame member (10) and the rear frame member (50) against twisting.
14. 14. Electrically operated cargo dolly (1) according to one of the embodiments 12 or 13, wherein the gripping portion (58) acts integrally to prevent the rear frame part (50) from detaching from the front frame part (10) in the front-rear direction.
15. 15. Electrically operable load roller (1) according to one of the embodiments 12 to 14, wherein the mutually spaced sections have a distance of at least about 6 cm.
16. 16. Electrically drivable cargo scooter (1), comprising:
    • - A front axle with at least one front wheel (20);
    • - A rear axle with at least one rear wheel (60); and
    • - A link (34) for pivoting one of the at least one front wheel (20) or the at least one rear wheel (60);
    wherein the electrically drivable load roller (1) is characterized by
    • - A steering support which is configured to pivot the at least one front wheel (20) and/or the at least one rear wheel (60) by applying a pivoting moment by means of a local motor on the at least one front wheel (20) and/or the at least one rear wheel ( 60) to support.
17. 17. Electrically drivable cargo scooter (1) according to embodiment 16, further comprising:
    • - An angle sensor, wherein the steering assistance is configured to apply the pivoting moment as a function of a signal from the angle sensor.
18. 18. Electrically operable load roller (1) according to one of the preceding embodiments, further comprising a load holder (11), wherein the load holder (11) is preferably arranged in front of a handlebar (34), and wherein the load holder (11) is configured to be exchangeable with a load box and/or to hold a passenger compartment.
19. 19. Electrically operable cargo scooter (1) according to one of the preceding embodiments, further comprising an actuatable locking element (38) which is configured to lock the front frame part (10) and the rear frame part (50) in a short state and/or in a long state of the Load rollers (1) to lock each other releasably.
20. 20. Electrically operable cargo scooter (1) according to one of the preceding embodiments, wherein the footboard (70) is kept pivoted substantially vertically in a short state of the cargo scooter (1) and/or in a long state of the cargo scooter (1). is held horizontally, the footboard (70) preferably being held magnetically in the short state and/or in the long state.
21. 21. Electrically operable cargo scooter (1) according to one of the preceding embodiments, comprising a seat device (80), wherein the seat device (80) preferably has a height-adjustable seat element and/or a seat element that can be tilted relative to a longitudinal direction (I) of the cargo scooter (1).
22. 22. Cargo scooter control and/or regulation system for a cargo scooter (1) for controlling and/or regulating a drive and/or steering assistance of an electrically drivable cargo scooter (1) according to one of embodiments 1 to 21.
23. 23. A method for controlling and/or regulating an electrically operated load roller (1), comprising the steps:
    • - interrogating at least one of the footboard sensor (90), the rear wheel pivot sensor (94) and the angle sensor according to any of the preceding embodiments; and
    • - Controlling or regulating at least one of a drive torque and/or a pivoting torque in response to the sensor query.
24. 24. A computer program product comprising instructions which, when the computer program product is executed by a computer, cause the computer to execute the method according to embodiment 23.

reference list

1

cargo scooter

10

front frame part

11

load holder

12

container

14

Lock

16

joint mount

18

tangible section

19

support element

20

front wheel

30

steering device

32

bracket

34

handlebars

36

handlebar tilt adjustment

38

locking element

40

rail system

44

ramp section

46

reinforcement element

47

locking recess

50

rear frame part

52

determination counter element

56

hinged opening

58

gripping section

59

support section

60

rear wheel

61

rear suspension

62

resettable, deflectable rear wheel safety device

64

operating section

66

groove element

67

safety tab

70

running board

72

determination element

74

rear wheel release device

76

joint part

80

seat device

90

footboard sensor

91

weight sensor

92

lock sensor

94

rear wheel pivot sensor

HA

vertical axis

b

latitude direction

H

height direction

I

longitudinal direction

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• EP2019086679 [0002]

Claims (15)

Electrically drivable cargo scooter (1), comprising: - a running board (70); wherein the electrically drivable load roller (1) is characterized by - A footboard sensor (90), which is configured to emit a signal when the footboard (70) is under load and/or to emit a signal when the footboard (70) is relieved; and - a cargo scooter control and/or regulation system connected to the footboard sensor (90); -- wherein the load roller control and/or regulation system is configured to adapt a drive of the load roller (1) to the load state or load state. Electrically driven load roller (1) according to claim 1 , wherein the footboard sensor (90) comprises a weight sensor (91) which, above and/or below a predetermined weight, detects the load state or the relief state of the footboard (70), and/or wherein the footboard sensor (90) comprises a proximity sensor, which recognizes the loading or unloading state of the running board (70) when the running board (70) is in a predetermined proximity position and/or in the absence of a predetermined proximity position resulting from loading or unloading the running board (70). Electrically operable cargo scooter (1), comprising: - a front axle with at least one front wheel (20), the front axle being arranged on a front frame part (10); and - a rear axle with at least one rear wheel (60), the rear axle being arranged on a rear frame part (50); -- wherein the load roller (1) has a short state in which one of the rear frame part (50) and the front frame part (10) is at least partially arranged in the other of the rear frame part (50) and the front frame part (10); characterized in that - when the load scooter (1) is in the long position, the rear frame part (50) and the front frame part (10) are configured to support one another at locations spaced apart from one another in the longitudinal direction (I) of the load scooter (1). Electrically operable cargo scooter (1) according to claim 3 , wherein one of the front frame part (10) and the rear frame part (50) has a gripping portion (58), and the other of the front frame part (10) and the rear frame part (50) has a grippable portion (18), the gripping portion (58 ) is configured to rotatably grip the graspable portion (18), and wherein a support portion supports the front frame member (10) and the rear frame member (50) against twisting. Electrically operable cargo scooter (1) according to one of claims 3 or 4 wherein the gripping portion (58) acts integrally as a safeguard against detachment of the rear frame member (50) from the front frame member (10) in the front-rear direction. Electrically operable cargo scooter (1) according to one of claims 3 until 5 , wherein the mutually spaced portions are at least about 6 cm apart. Electrically drivable cargo scooter (1), comprising: - A front axle with at least one front wheel (20); - A rear axle with at least one rear wheel (60); and - A link (34) for pivoting one of the at least one front wheel (20) or the at least one rear wheel (60); wherein the electrically drivable load roller (1) is characterized by - A steering support which is configured to pivot the at least one front wheel (20) and/or the at least one rear wheel (60) by applying a pivoting moment by means of a local motor on the at least one front wheel (20) and/or the at least one rear wheel ( 60) to support. Electrically driven cargo scooter (1) according to claim 7 , further comprising: - an angle sensor, wherein the steering assistance is configured to apply the pivoting moment as a function of a signal from the angle sensor. Electrically operable load roller (1) according to one of the preceding claims, further comprising a load holder (11), wherein the load holder (11) is preferably arranged in front of a handlebar (34), and wherein the load holder (11) is configured to exchangeably hold a load box and/or a passenger compartment. Electrically operable cargo scooter (1) according to any one of the preceding claims, further comprising an actuatable locking element (38) which is configured to lock the front frame part (10) and the rear frame part (50) in a short state and/or in a long state of the cargo scooter ( 1) to be releasably locked to one another. Electrically operable cargo scooter (1) according to one of the preceding claims, wherein the The footboard (70) is kept pivoted essentially vertically when the load scooter (1) is in a short state, and/or is kept essentially horizontal in a long state of the load scooter (1), the footboard (70) preferably being magnetic in the short state and/or held in the long state. Electrically operable cargo roller (1) according to any one of the preceding claims, comprising a seat device (80), the seat device (80) preferably a height-adjustable seat element and/or has a seat element which can be tilted in relation to a longitudinal direction (I) of the load roller (1). Cargo scooter control and/or regulation system for a cargo scooter (1) for controlling and/or regulating a drive and/or steering assistance of an electrically drivable cargo scooter (1) according to one of Claims 1 until 12 . Method for controlling and/or regulating an electrically operated cargo scooter (1), comprising the steps: - interrogating at least one of the footboard sensor (90), the rear wheel pivot sensor (94) and the angle sensor according to any one of the preceding claims; and - Controlling or regulating at least one of a drive torque and/or a pivoting torque in response to the sensor query. Computer program product, comprising instructions which, when the computer program product is executed by a computer, cause it to carry out the method Claim 14 to execute.

Images