EP2442996A2 - Device for interconnection with a motor vehicle - Google Patents

Device for interconnection with a motor vehicle

Info

Publication number
EP2442996A2
EP2442996A2 EP10734654A EP10734654A EP2442996A2 EP 2442996 A2 EP2442996 A2 EP 2442996A2 EP 10734654 A EP10734654 A EP 10734654A EP 10734654 A EP10734654 A EP 10734654A EP 2442996 A2 EP2442996 A2 EP 2442996A2
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
load
interconnection
charging
interconnected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10734654A
Other languages
German (de)
French (fr)
Inventor
Jan MØLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pendelmatic International V/jan Moller
Original Assignee
Pendelmatic International V/jan Moller
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pendelmatic International V/jan Moller filed Critical Pendelmatic International V/jan Moller
Publication of EP2442996A2 publication Critical patent/EP2442996A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0444—Arrangement on a trailer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0477—Removal or replacement of the energy storages from the back

Definitions

  • the present invention relates to a device for interconnection with a motor vehicle comprising at least one battery and at least one electric terminal for connection with a charging unit, a coupling means adapted for interconnecting the device with the motor vehicle and a load-carrying structure comprising at least one axle and at least one wheel.
  • Such a device is known from DE 41 05 246 Al, in which the de- vice is placed between the rear wheels of a motor vehicle powered by a combustion engine.
  • the device comprises a wheel receiving the battery and carrying the weight of the battery, and the device may be connected mechanically fixed with the motor vehicle by means of a coupling unit.
  • the known device takes up the space available between the rear wheels of the motor vehicle without putting load on the frame and wheels of the vehicle.
  • the device thus follows the motor vehicle without putting load on the frame and wheels thereof at the same time as the battery of the device may deliver electric energy to the engine of the motor vehicle.
  • the object of the invention is to provide an improved device for interconnection with a motor vehicle, which device does not put load on the motor vehicle, and which device may at the same time be utilized to enable increasing the net load of the motor vehicle.
  • This object is in a first aspect of the invention achieved by a device for interconnection with a motor vehicle of the type described by way of introduction, whereby the device may be interconnected with the motor vehicle in a boogie-like manner as the load-carrying structure is adapted for carrying the dead weight of the device, and whereby the load-carrying structure is dimensioned to have a load capacity exceeding the dead weight of the device such that the device, when interconnected with the motor vehicle, increases the net load of the motor vehicle.
  • Such a device does not put a load on the motor vehicle since the load-carrying structure carries the dead weight of the device, and the device may at the same time advantageously be utilized for increasing the net load of the motor vehicle, in that the device, when interconnected with the motor vehicle, functions in a boogie-like manner, whereby the load-carrying structure of the device functions as an extra wheel, or in case of a device comprising more than one wheel as one (or more) pair(s) of wheels, for the vehicle.
  • the net load of the motor vehicle may be increased by at least 50 kg, and in principle by as much as is desired, yet preferably by between 300 kg and 8000 kg, and more preferably by between 500 kg and 5000 kg.
  • the device further comprises one or more of:
  • towing means adapted for trailer-like transport of the device, preferably such that the device may be intercon- nected with the motor vehicle in a dolly-like manner, and/or
  • a device according to the invention with a towing means has several advantages. Firstly, use of the device in a dolly-like manner, that is as a trailer, which may be hitched on the motor vehicle, in this case particularly being a lorry, and onto which a semi-trailer, such as a lorry-trailer, may be coupled, is enabled. Thereby the net load of the motor vehicle is increased quite significantly, and in principle by as much as about 8000 kg or even more.
  • the towing means enables that the device may be transported in the same way as a con- ventional trailer, e.g. to bring the device to a place where the batteries may be charged.
  • the device comprises a towing means it is furthermore preferred to provide a nose wheel such as to add further stability to the device.
  • a further extension of the possibilities for transport of the de- vice to and from a motor vehicle, to which it is to be connected, is achieved by providing the device with a shunting rod.
  • a fork lift may also be used to move the device about.
  • the device is provided with a charging unit, a further simplifi- cation of the device is achieved since the charging unit opens the possibility of charging the batteries by means of a simple power supply and thereby of a simpler charging of the batteries.
  • a particularly simple device for interconnection with a motor vehicle is achieved when the device comprises an electrically powered engine.
  • the device comprises an electrically powered engine.
  • a self-propelled device is achieved, which enables considerably simpler transport of the device, as a separate auxiliary vehicle is no longer necessarily required.
  • the load- carrying structure comprises at least two wheels, preferably in the form of at least one pair of wheels, and/or at least two axles, whereby a particularly stable and robust device for interconnection with a motor vehicle is provided, which device may furthermore present an even larger load capacity.
  • the coupling means is chosen form the group comprising a king pin or a turntable adapted for interconnection with a corresponding turntable or king pin, respectively, of the motor vehicle, a king pin or a notch adapted for interconnection with a corresponding notch or king pin, respectively, of the motor vehicle, and a closing mechanism or a counter- part for a closing mechanism adapted for interconnection with a corresponding counterpart for a closing mechanism or closing mechanism, respectively, of the motor vehicle.
  • a motor vehicle comprising at least one device according to the first aspect of the invention, which motor vehicle is an electrically powered motor vehicle or a hybrid motor vehicle, particularly an electrically powered lorry or a hybrid lorry.
  • an engine of the motor vehicle is adapted for connection with the battery of the device for supplying the engine with electric energy. Thereby a motor vehicle with a connected supply of electric energy for the engine of the motor vehicle is achieved, whereby the motor vehicle is not subjected to a load and at the same time has an increased net load.
  • the motor vehicle comprises a coupling part, which coupling part comprises a slide plate with a notch comprising an inner section and an outer section, and a slide guide, which is adapted for receiving the coupling means of the device and is pivotally connected to the slide plate in such a way, that the slide guide is pivotal in an angle to each side of a longitudinal centre axis of the motor vehicle, which angle is limited by the extension of the inner section of the notch perpendicular to the longitudinal centre axis.
  • the coupling part further comprises a fitting for connection of slide guide and slide plate and/or at least one damper adapted for dampening the pivotal movement of the slide guide and/or a locking element adapted for locking the slide guide in such a way, that the position of the slide guide coincides with the longitudinal centre axis of the vehicle.
  • a particularly well functioning motor vehicle is provided, by which the device and the motor vehicle during driving cooperate in a way being particularly practical and simple for a driver. If one or more dampers are provided as mentioned above, a motor vehicle is provided, which to a driver functions particularly pleasant during driving in that the co-movement of the device is softened considerably. If a locking elements is provided as mentioned above, a motor vehicle is achieved, which is particularly simple to drive in reverse.
  • a method for charging and exchanging a device for interconnection with a motor vehicle according to the first aspect of the invention comprising the steps of:
  • the step of transporting the device to the charging station and/or the step of transporting the device to the motor vehicle is performed using an auxiliary vehicle, which is coupled to the towing means, connecting device or shunting rod of the device.
  • the method further comprises the step of exchanging the device, which is disconnected from the motor vehicle, with a previously charged device, which is then transported to the motor vehicle and interconnected therewith.
  • FIG. 1 shows a side view of a first embodiment of a device for interconnection with a motor vehicle according to the first aspect of the invention, the device being disconnected from a motor vehicle,
  • Fig. 2 shows a side view of the device according to Fig. 1 during interconnection with a motor vehicle
  • Fig. 3 shows a side view of the device according to Fig. 1 interconnected with a motor vehicle
  • Fig. 4 shows a side view of a first embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention
  • Fig. 5 shows a side view of a second embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention
  • Fig. 6 shows a side view of a third embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention
  • Fig. 7 shows a top view of a second embodiment of a device according to the first aspect of the invention in a disconnected state
  • Fig. 8 shows a top view of a third embodiment of a device ac- cording to the first aspect of the invention in a disconnected state
  • Fig. 9A shows a fourth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state
  • Fig. 9B shows the device according to Fig. 9A in a top view and in a disconnected state
  • Fig. 1OA shows a fifth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state
  • Fig. 1OB shows the device according to Fig. 1OA in a top view and in a disconnected state
  • Fig. HA shows a sixth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state
  • Figs. HB and HC shows the device according to Fig. HA in a top view, in a disconnected state and in an interconnected state, respectively, and
  • Fig. 12 shows a rough illustration of a method according to the third aspect of the invention.
  • a first embodiment of a device 1 for inter- connection with a motor vehicle 2 is shown, whereby the device 1 is not being interconnected with the motor vehicle 2 as of yet.
  • the device 1 comprises a battery 3, a coupling means 5 for interconnecting the device 1 with the motor vehicle 2 in a boogie-like manner, a towing means 9 for interconnecting the device 1 with the motor vehicle 2 in a dolly-like manner and a load-carrying structure 6 comprising an axle 7 and two wheels 8, only one of which is visible.
  • the two wheels 8 are provided at separate ends of the axle 7 and in combination make up a pair of wheels. Such a pair of wheels may be seen clearer on e.g. Fig. 8.
  • a nose wheel 13 is furthermore provided, the nose wheel 13 being usable as an extra support of the disconnected device 1 and foldable upwards to a horizontal position (not shown) underneath the device 1 in the direction of the arrow 27 shown on Fig. 1 when the device 1 is interconnected with the motor vehicle 2.
  • a shunting rod 10 is provided for transporting the device by means of a fork lift or the like.
  • Alternative embodiments of the device 1 include, but are not limited to, e.g. devices with several batteries, which may be mutually connected, e.g. in series, with only one wheel or alternatively more than two wheels and/or with more than one axle.
  • the motor vehicle 2 of which only the rear part 18 is shown in Figs. 1 to 3, comprises a coupling part 14, which the coupling means 5 of the device 1 is adapted for engagement with, a towing means 16, which the towing means 9 of the device 1 is adapted for engagement with, an electrically powered engine 15, a rear axle 19 and a pair of wheels 17, of which only one wheel is visible on Figs. 1 to 3.
  • the device 1 is furthermore provided with an electric terminal 4 adapted for connection with a charging unit.
  • the electric terminal 4 may at the same time be adapted for electric connection with an electric terminal (not shown) on the motor vehicle 2, thereby enabling supplying an engine of the motor vehicle 2 with electric energy when the device 1 and the motor vehicle 2 are interconnected.
  • the electric terminal 4 may be in- tegrated in the towing means 9 or in the coupling means 5, such that when the towing means 9 or the coupling means 5 is brought into engagement with their respective counterparts 16 and 14, respectively, on the motor vehicle 2, the electric connection between device 1 and motor vehicle 2, which enables supplying an engine of the motor vehicle 2 with electric energy when the device 1 and the motor vehicle 2 are interconnected, is closed at the same time.
  • the device When interconnecting the device 1 and the motor vehicle 2, the device is moved in the direction of the arrow 28, and thereby under the rear part 18 of the motor vehicle 2, firstly to the intermediate position shown in Fig. 2 and then on to the final interconnected position shown in Fig. 3.
  • the towing means 9 and the coupling means 5 are in engagement with their respective counterparts 16 and 14, respectively, on the motor vehicle 2 in the interconnected position, whereby a fixed mechanical connection between device 1 and motor vehicle 2 is provided.
  • the wheels 8 rest on the base 29, such that the load-carrying structure 6 may carry the entire dead weight of the device, and at the same time the device 1 works as an extra pair of wheels on the motor vehicle 2, the net load of which is con- sequently increased.
  • a first embodiment of a motor vehicle 2 according to the second aspect of the invention is shown.
  • the motor vehicle 2 which is a lorry, is interconnected with a device 1 according to the invention.
  • the motor vehicle 2 comprises a combustion engine 20, particularly a diesel engine, and the device 1 is provided with an electrically powered engine 12.
  • a hybrid lorry is achieved by the combination of the device 1 and the motor vehicle 2 according to Fig.
  • the electrically powered engine 12 of the device 1 may contribute completely or partly to the propulsion of the motor vehicle 2 using electric energy from the battery 3. Furthermore, with the electrically powered engine 12 a self- propelled device 1 for interconnection with a motor vehicle 2 is provided, whereby the engine 12 may be used for transporting the device 1, e.g. to and from a charging station.
  • Fig. 5 shows a second embodiment of a motor vehicle 2 accord- ing to the second aspect of the invention.
  • the motor vehicle 2 which is a hybrid lorry, comprises a device 1 according to the invention, a combustion engine 20 and furthermore an electrically powered engine 15, which may be supplied with electric energy from the battery 3 of the device 1 by means of an electrical connection (not shown) between the engine 15 and the battery 3 of the device 1.
  • Fig. 6 shows a third embodiment of a motor vehicle 2 according to the second aspect of the invention.
  • the motor vehicle 2 is an electrically powered lorry comprising a device 1 according to the invention and an electrically powered engine 15, which may be supplied with electric energy from the battery 3 of the device 1.
  • a device 1 for interconnection with a motor vehicle 2 according to the invention may be used with any type of motor vehicle, including passenger vehicles, vans, minibuses, buses, trucks and lorries of any weight.
  • Figs. 7 to HC show different alternative embodiments of a device 1 according to the invention. These alternative embodiments will be described in the following, but for the sake of simplicity only regarding their respective differences with regard to the device 1 according to Figs. 1 to 3 as described above.
  • Fig. 7 thus shows a second embodiment of a device 1 according to the invention, the device 1 being provided with a charging unit 11 adapted for connection with the electric terminal 4, which in this embodiment is provided on the side of the device 1 opposite the towing means 9.
  • the charging unit 11 is furthermore adapted for connection with a charging station.
  • the charging unit 11 may e.g. be an electric line with a suitable connection terminal at each end, such that the battery 3 via the electric terminal 4 and the charging unit 11 may be connected to a simple power source.
  • the coupling means 5 of the device 1 is constructed as a king pin 21, while the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a turnta- ble 22 with which the king pin 21 may engage.
  • a third embodiment of the device 1 according to the invention is shown, whereby the device 1 is provided with an engine 12, particularly an electrically powered engine, and whereby the coupling means 5 once again is constructed as a king pin 21, while the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a turntable 22 with which the king pin 21 may engage.
  • the coupling means 5 once again is constructed as a king pin 21, while the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a turntable 22 with which the king pin 21 may engage.
  • Figs. 9A and 9B shows a fourth embodiment of the device 1 ac- cording to the invention in a cross sectional view in an interconnected state and in a top view in a disconnected state, respectively.
  • the coupling means 5 of the device 1 is constructed as a guide pin 41, e.g. a king pin, and the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a notch 23 adapted for receiving the guide pin 41.
  • the notch 23 is constructed with an inner section 23b with a substantially constant width, whereby a friction locking effect is achieved, and an outer section 23a with an in a direction towards the inner section 23b gradually narrowing width, whereby the interconnection process is simplified.
  • the notch 23 may furthermore be provided with a locking means (not shown) for further securing of the interconnection between device 1 and motor vehicle 2.
  • the device 1 is furthermore provided with two rollers 26a, 26b being adapted for sliding on the coupling part 14 during the interconnection.
  • Figs. 1OA and 1OB shows a fifth embodiment of a device 1 according to the invention in a cross sectional view in an interconnected state and in a top view in a disconnected state, respectively.
  • the coupling means 5 is provided in the form of closing mechanisms 24a, 24b
  • the coupling part 14 is provided in the form of lugs 25a, 25b adapted to lock with the respective closing mechanisms 24a, 24b by rotating the respective closing mechanisms 24a, 24b in the direction of the respective arrows shown in Fig. 1OA.
  • Suitable closing mechanisms 24a, 24b include e.g. eccentric closing mechanisms, angled closing mechanisms and the like.
  • Figs. HA, HB and HC shows a sixth embodiment of a device 1 according to the invention in a cross sectional view in an interconnected state, in a top view in a disconnected state and in a top view in an interconnected state, respectively.
  • the coupling means 5 of the device 1 is once again provided as a guide pin 41.
  • the coupling part 14 of the motor vehicle 2 comprises a slide plate 39 with a notch 40 comprising an inner section 40b having a sub- stantially constant width and a shape substantially as a C-profile and an outer section 40a having an in a direction towards the inner section 40b gradually narrowing width, whereby the interconnecting process is simplified.
  • the coupling part 14 further comprises a slide guide 44 adapted for receiving the guide pin 41 in such a way that a friction locking effect of the guide pin 41 is achieved.
  • the slide guide 44 is connected to the slide plate 39 by means of a fitting 46, which is provided at the transition between the outer section 40a and the inner section 40b, and about which fitting 46 the slide guide 44 may pivot in an angle relative to a longitudinal centre axis 47 of the motor vehicle 2, the angle being limited by the width of the inner section 40b of the notch 40, the width of the inner section 40b being the extension of the inner section 40b in a direction perpendicular to the longitudinal axis 47, e.g. by means of a stopping device (not shown) provided on the slide plate 39 or the slide guide 44.
  • the fitting 46 may furthermore be adapted for providing an extra securing of the interconnection between device 1 and motor vehicle 2.
  • the coupling part 14 For dampening the pivotal movement of the slide guide 44 the coupling part 14 comprises dampers 43a and 43b, respectively, con- nected to each side of the slide guide 44, preferably at the side of the slide guide 44 facing away form the fitting 46.
  • the dampers 43a, 43b may e.g. be gas dampers, hydraulic pistons, pneumatic pistons or other suitable dampers or pistons.
  • the device 1 may be al- lowed to pivot with the drawing of a circle described by the motor vehicle 2 when the motor vehicle 2 is turning, e.g. through a turn or around a corner.
  • the coupling part 14 comprises a locking element 42 with a dowel 45, which may be pushed out of and drawn into the locking element 42, the locking element 42 being adapted for locking the slide guide 44 in such a way, that the position of the slide guide 44 coincides with the longitudinal centre axis 47 of the vehicle.
  • the locking element 42 is preferably an air cylinder, but other types of elements enabling pushing out and drawing in a dowel may be used.
  • An example could be a locking element comprising a spring, which pretensions a dowel.
  • Such a method comprises the steps of: - providing a charging station 30 adapted for charging the at least one battery 3 of the device,
  • charging station as used herein is in principle meant any source of electric energy suitable for charging the battery 3 of the device. Particularly, however, is meant such charging stations 30 being specially developed and adapted for charging electric motor vehicles and hybrid motor vehicles, and intended for use in building up an infrastructure for such motor vehicles.
  • Such a charging station 30 is illustrated in Fig. 12, where a plurality of devices 35a - 35h according to the invention is connected to the charging station 30 to get their respective batteries charged.
  • the transport of the device 1 to the charging station 30 and/or to the motor vehicle 2 may be performed by means of the device's own engine 12, when the device 1 is provided with such an engine, or may be carried out using an auxiliary vehicle 31, which may be coupled to the towing means 9, coupling means 5 or shunting rod 10 of the device.
  • the device 1 with the discharged battery 3 may be supplied with new electric energy in that the device 1 with the discharged battery 3 is disconnected from the motor vehicle 2 and exchanged for a device, e.g. the device 32 in Fig. 12, whose battery is already charged at the charging station 30, and which is transported to the motor vehicle 2 and interconnected therewith.
  • a device e.g. the device 32 in Fig. 12, whose battery is already charged at the charging station 30, and which is transported to the motor vehicle 2 and interconnected therewith.
  • the device 1 is for example not limited to comprising an electrical battery 3, but may instead just as well comprise e.g. fuel cells for burning hydrogen or the like, or the battery 3 may even be left out.

Abstract

A device (1) for interconnection with a motor vehicle (2) comprising at least one battery (3) and at least one electric terminal (4) adapted for connection with a charging unit (11), a coupling means (5) adapted for interconnecting the device (1) with the motor vehicle (2) and a load-carrying structure (6) comprising at least one axle (7) and at least one wheel (8), wherein the device (1) may be interconnected with the motor vehicle in a boogie-like manner as the load-carrying structure (6) is adapted for carrying the dead weight of the device, and wherein the load-carrying structure (6) is dimensioned to have a load capacity exceeding the dead weight of the device, such that the device (1), when interconnected with the motor vehicle (2), increases the net load of the motor vehicle.

Description

Device for interconnection with a motor vehicle
The present invention relates to a device for interconnection with a motor vehicle comprising at least one battery and at least one electric terminal for connection with a charging unit, a coupling means adapted for interconnecting the device with the motor vehicle and a load-carrying structure comprising at least one axle and at least one wheel.
Such a device is known from DE 41 05 246 Al, in which the de- vice is placed between the rear wheels of a motor vehicle powered by a combustion engine. The device comprises a wheel receiving the battery and carrying the weight of the battery, and the device may be connected mechanically fixed with the motor vehicle by means of a coupling unit. When placed between the rear wheels of the motor vehicle, the known device takes up the space available between the rear wheels of the motor vehicle without putting load on the frame and wheels of the vehicle. When the motor vehicle moves, the device thus follows the motor vehicle without putting load on the frame and wheels thereof at the same time as the battery of the device may deliver electric energy to the engine of the motor vehicle.
The object of the invention is to provide an improved device for interconnection with a motor vehicle, which device does not put load on the motor vehicle, and which device may at the same time be utilized to enable increasing the net load of the motor vehicle. This object is in a first aspect of the invention achieved by a device for interconnection with a motor vehicle of the type described by way of introduction, whereby the device may be interconnected with the motor vehicle in a boogie-like manner as the load-carrying structure is adapted for carrying the dead weight of the device, and whereby the load-carrying structure is dimensioned to have a load capacity exceeding the dead weight of the device such that the device, when interconnected with the motor vehicle, increases the net load of the motor vehicle.
Such a device does not put a load on the motor vehicle since the load-carrying structure carries the dead weight of the device, and the device may at the same time advantageously be utilized for increasing the net load of the motor vehicle, in that the device, when interconnected with the motor vehicle, functions in a boogie-like manner, whereby the load-carrying structure of the device functions as an extra wheel, or in case of a device comprising more than one wheel as one (or more) pair(s) of wheels, for the vehicle. Thereby the net load of the motor vehicle may be increased by at least 50 kg, and in principle by as much as is desired, yet preferably by between 300 kg and 8000 kg, and more preferably by between 500 kg and 5000 kg.
According to a particularly preferred embodiment of the invention, the device further comprises one or more of:
- a towing means adapted for trailer-like transport of the device, preferably such that the device may be intercon- nected with the motor vehicle in a dolly-like manner, and/or
- a shunting rod, and/or
- a charging unit, and/or
- an electrically powered engine, and/or - a nose wheel provided in connection with the towing means.
To provide a device according to the invention with a towing means has several advantages. Firstly, use of the device in a dolly-like manner, that is as a trailer, which may be hitched on the motor vehicle, in this case particularly being a lorry, and onto which a semi-trailer, such as a lorry-trailer, may be coupled, is enabled. Thereby the net load of the motor vehicle is increased quite significantly, and in principle by as much as about 8000 kg or even more. Secondly, the towing means enables that the device may be transported in the same way as a con- ventional trailer, e.g. to bring the device to a place where the batteries may be charged. When the device comprises a towing means it is furthermore preferred to provide a nose wheel such as to add further stability to the device.
A further extension of the possibilities for transport of the de- vice to and from a motor vehicle, to which it is to be connected, is achieved by providing the device with a shunting rod. Thereby e.g. a fork lift may also be used to move the device about.
If the device is provided with a charging unit, a further simplifi- cation of the device is achieved since the charging unit opens the possibility of charging the batteries by means of a simple power supply and thereby of a simpler charging of the batteries.
A particularly simple device for interconnection with a motor vehicle is achieved when the device comprises an electrically powered engine. Thereby a self-propelled device is achieved, which enables considerably simpler transport of the device, as a separate auxiliary vehicle is no longer necessarily required.
According to a preferred embodiment of the invention the load- carrying structure comprises at least two wheels, preferably in the form of at least one pair of wheels, and/or at least two axles, whereby a particularly stable and robust device for interconnection with a motor vehicle is provided, which device may furthermore present an even larger load capacity.
According to another preferred embodiment of the invention the coupling means is chosen form the group comprising a king pin or a turntable adapted for interconnection with a corresponding turntable or king pin, respectively, of the motor vehicle, a king pin or a notch adapted for interconnection with a corresponding notch or king pin, respectively, of the motor vehicle, and a closing mechanism or a counter- part for a closing mechanism adapted for interconnection with a corresponding counterpart for a closing mechanism or closing mechanism, respectively, of the motor vehicle. By use of one of these possible coupling means is provided a device for interconnection with a motor vehicle being particularly simple to interconnect with the motor vehicle. According to a second aspect of the invention a motor vehicle is provided comprising at least one device according to the first aspect of the invention, which motor vehicle is an electrically powered motor vehicle or a hybrid motor vehicle, particularly an electrically powered lorry or a hybrid lorry. According to a preferred embodiment, an engine of the motor vehicle is adapted for connection with the battery of the device for supplying the engine with electric energy. Thereby a motor vehicle with a connected supply of electric energy for the engine of the motor vehicle is achieved, whereby the motor vehicle is not subjected to a load and at the same time has an increased net load.
According to a particularly preferred embodiment, the motor vehicle comprises a coupling part, which coupling part comprises a slide plate with a notch comprising an inner section and an outer section, and a slide guide, which is adapted for receiving the coupling means of the device and is pivotally connected to the slide plate in such a way, that the slide guide is pivotal in an angle to each side of a longitudinal centre axis of the motor vehicle, which angle is limited by the extension of the inner section of the notch perpendicular to the longitudinal centre axis. In developments of this embodiment the coupling part further comprises a fitting for connection of slide guide and slide plate and/or at least one damper adapted for dampening the pivotal movement of the slide guide and/or a locking element adapted for locking the slide guide in such a way, that the position of the slide guide coincides with the longitudinal centre axis of the vehicle.
Thereby a particularly well functioning motor vehicle is provided, by which the device and the motor vehicle during driving cooperate in a way being particularly practical and simple for a driver. If one or more dampers are provided as mentioned above, a motor vehicle is provided, which to a driver functions particularly pleasant during driving in that the co-movement of the device is softened considerably. If a locking elements is provided as mentioned above, a motor vehicle is achieved, which is particularly simple to drive in reverse.
Finally, according to a third aspect of the invention a method for charging and exchanging a device for interconnection with a motor vehicle according to the first aspect of the invention is provided, the method comprising the steps of:
- providing a charging station adapted for charging the at least one battery of the device, - disconnecting the device from the motor vehicle and transporting the device to the charging station,
- charging the battery of the device by means of the electric terminal, and - transporting the device to the motor vehicle and interconnecting the device with the motor vehicle. According to a particularly preferred embodiment the step of transporting the device to the charging station and/or the step of transporting the device to the motor vehicle is performed using an auxiliary vehicle, which is coupled to the towing means, connecting device or shunting rod of the device.
According to another particularly preferred embodiment the method further comprises the step of exchanging the device, which is disconnected from the motor vehicle, with a previously charged device, which is then transported to the motor vehicle and interconnected therewith.
In the following the invention will be described in further detail based on a non-limiting example of an embodiment and by reference to the schematic drawing. On the drawing: Fig. 1 shows a side view of a first embodiment of a device for interconnection with a motor vehicle according to the first aspect of the invention, the device being disconnected from a motor vehicle,
Fig. 2 shows a side view of the device according to Fig. 1 during interconnection with a motor vehicle, Fig. 3 shows a side view of the device according to Fig. 1 interconnected with a motor vehicle,
Fig. 4 shows a side view of a first embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention, Fig. 5 shows a side view of a second embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention,
Fig. 6 shows a side view of a third embodiment of a motor vehicle according to the second aspect of the invention interconnected with a device according to the first aspect of the invention,
Fig. 7 shows a top view of a second embodiment of a device according to the first aspect of the invention in a disconnected state,
Fig. 8 shows a top view of a third embodiment of a device ac- cording to the first aspect of the invention in a disconnected state,
Fig. 9A shows a fourth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state,
Fig. 9B shows the device according to Fig. 9A in a top view and in a disconnected state,
Fig. 1OA shows a fifth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state,
Fig. 1OB shows the device according to Fig. 1OA in a top view and in a disconnected state,
Fig. HA shows a sixth embodiment of a device according to the first aspect of the invention in cross section and in an interconnected state,
Figs. HB and HC shows the device according to Fig. HA in a top view, in a disconnected state and in an interconnected state, respectively, and
Fig. 12 shows a rough illustration of a method according to the third aspect of the invention.
Referring to Fig. 1, a first embodiment of a device 1 for inter- connection with a motor vehicle 2 is shown, whereby the device 1 is not being interconnected with the motor vehicle 2 as of yet. The device 1 comprises a battery 3, a coupling means 5 for interconnecting the device 1 with the motor vehicle 2 in a boogie-like manner, a towing means 9 for interconnecting the device 1 with the motor vehicle 2 in a dolly-like manner and a load-carrying structure 6 comprising an axle 7 and two wheels 8, only one of which is visible. The two wheels 8 are provided at separate ends of the axle 7 and in combination make up a pair of wheels. Such a pair of wheels may be seen clearer on e.g. Fig. 8. In connection with the towing means 9 a nose wheel 13 is furthermore provided, the nose wheel 13 being usable as an extra support of the disconnected device 1 and foldable upwards to a horizontal position (not shown) underneath the device 1 in the direction of the arrow 27 shown on Fig. 1 when the device 1 is interconnected with the motor vehicle 2. On the end of the device 1 facing away form the towing means 9, a shunting rod 10 is provided for transporting the device by means of a fork lift or the like.
Alternative embodiments of the device 1 include, but are not limited to, e.g. devices with several batteries, which may be mutually connected, e.g. in series, with only one wheel or alternatively more than two wheels and/or with more than one axle.
The motor vehicle 2, of which only the rear part 18 is shown in Figs. 1 to 3, comprises a coupling part 14, which the coupling means 5 of the device 1 is adapted for engagement with, a towing means 16, which the towing means 9 of the device 1 is adapted for engagement with, an electrically powered engine 15, a rear axle 19 and a pair of wheels 17, of which only one wheel is visible on Figs. 1 to 3.
The device 1 is furthermore provided with an electric terminal 4 adapted for connection with a charging unit. The electric terminal 4 may at the same time be adapted for electric connection with an electric terminal (not shown) on the motor vehicle 2, thereby enabling supplying an engine of the motor vehicle 2 with electric energy when the device 1 and the motor vehicle 2 are interconnected.
In an alternative embodiment the electric terminal 4 may be in- tegrated in the towing means 9 or in the coupling means 5, such that when the towing means 9 or the coupling means 5 is brought into engagement with their respective counterparts 16 and 14, respectively, on the motor vehicle 2, the electric connection between device 1 and motor vehicle 2, which enables supplying an engine of the motor vehicle 2 with electric energy when the device 1 and the motor vehicle 2 are interconnected, is closed at the same time.
When interconnecting the device 1 and the motor vehicle 2, the device is moved in the direction of the arrow 28, and thereby under the rear part 18 of the motor vehicle 2, firstly to the intermediate position shown in Fig. 2 and then on to the final interconnected position shown in Fig. 3. As may be seen in Fig. 3, the towing means 9 and the coupling means 5 are in engagement with their respective counterparts 16 and 14, respectively, on the motor vehicle 2 in the interconnected position, whereby a fixed mechanical connection between device 1 and motor vehicle 2 is provided. At the same time the wheels 8 rest on the base 29, such that the load-carrying structure 6 may carry the entire dead weight of the device, and at the same time the device 1 works as an extra pair of wheels on the motor vehicle 2, the net load of which is con- sequently increased. In this way the net load of the motor vehicle may be increased by at least 50 kg, preferably by as much as 8000 kg or even more, depending on the type of motor vehicle 2 and the construction of the device 1, particularly the load carrying structure 6 of the device 1. In Fig. 4 a first embodiment of a motor vehicle 2 according to the second aspect of the invention is shown. The motor vehicle 2, which is a lorry, is interconnected with a device 1 according to the invention. The motor vehicle 2 comprises a combustion engine 20, particularly a diesel engine, and the device 1 is provided with an electrically powered engine 12. Thereby a hybrid lorry is achieved by the combination of the device 1 and the motor vehicle 2 according to Fig. 4, as the electrically powered engine 12 of the device 1 may contribute completely or partly to the propulsion of the motor vehicle 2 using electric energy from the battery 3. Furthermore, with the electrically powered engine 12 a self- propelled device 1 for interconnection with a motor vehicle 2 is provided, whereby the engine 12 may be used for transporting the device 1, e.g. to and from a charging station.
Fig. 5 shows a second embodiment of a motor vehicle 2 accord- ing to the second aspect of the invention. The motor vehicle 2, which is a hybrid lorry, comprises a device 1 according to the invention, a combustion engine 20 and furthermore an electrically powered engine 15, which may be supplied with electric energy from the battery 3 of the device 1 by means of an electrical connection (not shown) between the engine 15 and the battery 3 of the device 1.
Fig. 6 shows a third embodiment of a motor vehicle 2 according to the second aspect of the invention. The motor vehicle 2 is an electrically powered lorry comprising a device 1 according to the invention and an electrically powered engine 15, which may be supplied with electric energy from the battery 3 of the device 1.
It is noted, that even though Figs. 4 to 6 show the motor vehicle 2 according to the invention as being a lorry, it is obvious to the skilled person that a device 1 for interconnection with a motor vehicle 2 according to the invention may be used with any type of motor vehicle, including passenger vehicles, vans, minibuses, buses, trucks and lorries of any weight.
Figs. 7 to HC show different alternative embodiments of a device 1 according to the invention. These alternative embodiments will be described in the following, but for the sake of simplicity only regarding their respective differences with regard to the device 1 according to Figs. 1 to 3 as described above.
Fig. 7 thus shows a second embodiment of a device 1 according to the invention, the device 1 being provided with a charging unit 11 adapted for connection with the electric terminal 4, which in this embodiment is provided on the side of the device 1 opposite the towing means 9. The charging unit 11 is furthermore adapted for connection with a charging station. Thus, the charging unit 11 may e.g. be an electric line with a suitable connection terminal at each end, such that the battery 3 via the electric terminal 4 and the charging unit 11 may be connected to a simple power source.
Furthermore, the coupling means 5 of the device 1 is constructed as a king pin 21, while the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a turnta- ble 22 with which the king pin 21 may engage.
In Fig. 8 a third embodiment of the device 1 according to the invention is shown, whereby the device 1 is provided with an engine 12, particularly an electrically powered engine, and whereby the coupling means 5 once again is constructed as a king pin 21, while the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a turntable 22 with which the king pin 21 may engage.
Figs. 9A and 9B shows a fourth embodiment of the device 1 ac- cording to the invention in a cross sectional view in an interconnected state and in a top view in a disconnected state, respectively. In this embodiment the coupling means 5 of the device 1 is constructed as a guide pin 41, e.g. a king pin, and the coupling part 14, which is mounted on the motor vehicle 2, is constructed as a slide plate 39 with a notch 23 adapted for receiving the guide pin 41. The notch 23 is constructed with an inner section 23b with a substantially constant width, whereby a friction locking effect is achieved, and an outer section 23a with an in a direction towards the inner section 23b gradually narrowing width, whereby the interconnection process is simplified. The notch 23 may furthermore be provided with a locking means (not shown) for further securing of the interconnection between device 1 and motor vehicle 2.
To reduce the friction arising between the coupling means 5 and the coupling part 14 during interconnection of device 1 and motor vehicle 2, the device 1 is furthermore provided with two rollers 26a, 26b being adapted for sliding on the coupling part 14 during the interconnection.
Figs. 1OA and 1OB shows a fifth embodiment of a device 1 according to the invention in a cross sectional view in an interconnected state and in a top view in a disconnected state, respectively. In this em- bodiment the coupling means 5 is provided in the form of closing mechanisms 24a, 24b, while the coupling part 14 is provided in the form of lugs 25a, 25b adapted to lock with the respective closing mechanisms 24a, 24b by rotating the respective closing mechanisms 24a, 24b in the direction of the respective arrows shown in Fig. 1OA. Suitable closing mechanisms 24a, 24b include e.g. eccentric closing mechanisms, angled closing mechanisms and the like.
Figs. HA, HB and HC shows a sixth embodiment of a device 1 according to the invention in a cross sectional view in an interconnected state, in a top view in a disconnected state and in a top view in an interconnected state, respectively. In this embodiment the coupling means 5 of the device 1 is once again provided as a guide pin 41.
The coupling part 14 of the motor vehicle 2 comprises a slide plate 39 with a notch 40 comprising an inner section 40b having a sub- stantially constant width and a shape substantially as a C-profile and an outer section 40a having an in a direction towards the inner section 40b gradually narrowing width, whereby the interconnecting process is simplified.
The coupling part 14 further comprises a slide guide 44 adapted for receiving the guide pin 41 in such a way that a friction locking effect of the guide pin 41 is achieved. The slide guide 44 is connected to the slide plate 39 by means of a fitting 46, which is provided at the transition between the outer section 40a and the inner section 40b, and about which fitting 46 the slide guide 44 may pivot in an angle relative to a longitudinal centre axis 47 of the motor vehicle 2, the angle being limited by the width of the inner section 40b of the notch 40, the width of the inner section 40b being the extension of the inner section 40b in a direction perpendicular to the longitudinal axis 47, e.g. by means of a stopping device (not shown) provided on the slide plate 39 or the slide guide 44. The fitting 46 may furthermore be adapted for providing an extra securing of the interconnection between device 1 and motor vehicle 2.
For dampening the pivotal movement of the slide guide 44 the coupling part 14 comprises dampers 43a and 43b, respectively, con- nected to each side of the slide guide 44, preferably at the side of the slide guide 44 facing away form the fitting 46. The dampers 43a, 43b may e.g. be gas dampers, hydraulic pistons, pneumatic pistons or other suitable dampers or pistons. With such an embodiment of the interconnection between device 1 and motor vehicle 2, the device 1 may be al- lowed to pivot with the drawing of a circle described by the motor vehicle 2 when the motor vehicle 2 is turning, e.g. through a turn or around a corner.
Furthermore, the coupling part 14 comprises a locking element 42 with a dowel 45, which may be pushed out of and drawn into the locking element 42, the locking element 42 being adapted for locking the slide guide 44 in such a way, that the position of the slide guide 44 coincides with the longitudinal centre axis 47 of the vehicle. Thereby, the device 1 may be maintained on the longitudinal centre axis 47 of the vehicle, which is particularly advantageous when it is necessary to reverse the vehicle. The locking element 42 is preferably an air cylinder, but other types of elements enabling pushing out and drawing in a dowel may be used. An example could be a locking element comprising a spring, which pretensions a dowel. As an alternative to each of the embodiments according to Figs.
7 to HC it is obvious, that it is possible to provide the coupling means 5 on the motor vehicle 2 rather than on the device 1, and likewise to provide the coupling part 14 on the device 1 rather than on the motor vehicle 2. Referring to Fig. 12, an example of a method according to the third aspect of the invention for charging and exchanging a device 1 for interconnection with a motor vehicle 2 shall be described in the following.
Such a method comprises the steps of: - providing a charging station 30 adapted for charging the at least one battery 3 of the device,
- disconnecting the device 1 from the motor vehicle 2 and transporting the device to the charging station 30,
- charging the battery 3 of the device by means of the electric terminal 4, and
- transporting the device 1 to the motor vehicle 2 and interconnecting the device 1 with the motor vehicle 2.
By the term charging station as used herein is in principle meant any source of electric energy suitable for charging the battery 3 of the device. Particularly, however, is meant such charging stations 30 being specially developed and adapted for charging electric motor vehicles and hybrid motor vehicles, and intended for use in building up an infrastructure for such motor vehicles. Such a charging station 30 is illustrated in Fig. 12, where a plurality of devices 35a - 35h according to the invention is connected to the charging station 30 to get their respective batteries charged.
The transport of the device 1 to the charging station 30 and/or to the motor vehicle 2 may be performed by means of the device's own engine 12, when the device 1 is provided with such an engine, or may be carried out using an auxiliary vehicle 31, which may be coupled to the towing means 9, coupling means 5 or shunting rod 10 of the device.
Furthermore, a motor vehicle 2 with a device 1, whose battery
3 is discharged, may be supplied with new electric energy in that the device 1 with the discharged battery 3 is disconnected from the motor vehicle 2 and exchanged for a device, e.g. the device 32 in Fig. 12, whose battery is already charged at the charging station 30, and which is transported to the motor vehicle 2 and interconnected therewith.
It is to be noted, that the foregoing description of preferred embodiments is merely an example, and that the skilled person will be aware of that numerous variations are possible without departing from the scope of the claims. Thus, the device 1 is for example not limited to comprising an electrical battery 3, but may instead just as well comprise e.g. fuel cells for burning hydrogen or the like, or the battery 3 may even be left out.

Claims

P A T E N T C L A I M S
1. A device (1) for interconnection with a motor vehicle (2), comprising: at least one battery (3) and at least one electric terminal (4) adapted for connection with a charging unit (11), a coupling means (5) adapted for interconnecting the device with the motor vehicle, and a load-carrying construction (6) comprising at least one axle (7) and at least one wheel (8), c h a ra cte riz ed in that the device (1) may be interconnected with the motor vehicle (2) in a boogie-like manner as the load- carrying construction (6) is adapted for carrying the dead weight of the device, and that the load-carrying construction is dimensioned to have a load capacity exceeding the dead weight of the device, such that the device (1), when interconnected with the motor vehicle (2), increases the net load of the motor vehicle.
2. A device according to claim 1, c h a ra cte ri z ed in that the load-carrying structure (6) is dimensioned to have a load capacity exceeding the dead weight of the device by at least 50 kg, preferably by between 300 and 8000 kg, more preferably by between 500 kg and 5000 kg.
3. A device according to any one of the foregoing claims, c h a ra cte ri z ed in that it further comprises a towing means (9) adapted for trailer-like transport of the device (1), preferably such that the device (1) may be interconnected with the motor vehicle (2) in a dolly-like manner, and/or a shunting rod (10) and/or a charging unit (11) and/or an electrically powered engine (12), and/or a nose wheel (13) provided in connection with the towing means (9).
4. A device according to any one of the foregoing claims, c h a ra cte ri ze d in that the load-carrying construction (6) comprises at least two wheels (8), preferably in the form of at least one pair of wheels, and/or at least two axles (7).
5. A device according to any one of the foregoing claims, c h a ra cte ri z ed in that the coupling means (5) is chosen from the group comprising: a king pin (21) or a turntable (22) adapted for interconnection with a turntable or king pin, respectively, of the motor vehicle (2), a guide pin (41) or a notch (23) adapted for interconnection with a notch or a guide pin, respectively, of the motor vehicle, and a closing mechanism (24a, 24b) or a counterpart (25a, 25b) to a closing mechanism adapted for interconnection with a counterpart to a closing mechanism or a closing mechanism, respectively, of the motor vehicle.
6. A motor vehicle (2) comprising at least one device (1) according to any one of the foregoing claims, the motor vehicle (2) being an electrically powered motor vehicle or a hybrid motor vehicle, preferably an electrically powered lorry or a hybrid lorry.
7. A motor vehicle according to claim 6, c h a r a c t e r i z e d in that an engine (15, 20) of the motor vehicle (2) is adapted for connection with the battery (3) of the device (1) for supplying the engine (15, 20) with electric energy.
8. A motor vehicle according to claim 6 or 7, c h a r a c t e r i z e d in that it further comprises a coupling part (14), which coupling part (14) comprises a slide plate (39) with a notch (40) comprising an inner section (40b) and an outer section (40a) and a slide guide (44), which is adapted for receiving the coupling means (5) of the device (1) and is pivotally connected to the slide plate (39) in such a way that the slide guide (44) is pivotal in an angle to each side of a longitudinal cen- tre axis (47) of the motor vehicle (2), which angle is limited by the extension of the inner section (40b) of the notch (40) perpendicular to the longitudinal centre axis (47).
9. A motor vehicle according to claim 8, c h a r a c t e r i z e d in that the coupling part (14) further comprises a fitting (46) for con- nection of the slide guide (44) and the slide plate (39) and/or at least one damper (43a, 43b) adapted for dampening the pivotal movement of the slide guide (44) and/or a locking element (42) adapted for locking the slide guide (44) in such a way, that the position of the slide guide (44) coincides with the longitudinal centre axis (47) of the vehicle.
10 A method for charging and exchanging a device (1) for interconnection with a motor vehicle (2) according to any one of claims 1 to 5, the method comprising the steps of:
- providing a charging station (30) adapted for charging the at least one battery (3) of the device (1),
- disconnecting the device (1) from the motor vehicle (2) and transporting the device (1) to the charging station (30),
- charging the battery (3) of the device (1) by means of the electric terminal (4), and
- transporting the device (1) to the motor vehicle (2) and interconnecting the device (1) with the motor vehicle (2).
11. A method according to claim 10, wherein the step of trans- porting the device (1) to the charging station (30) and/or the step of transporting the device (1) to the motor vehicle (2) is performed using an auxiliary vehicle (31), which is coupled to the towing means (9), coupling means (5) or shunting rod (10) of the device (1).
12. A method according to claim 10 or 11, further comprising the step of exchanging the device (1), which is disconnected from the motor vehicle (2), with a previously charged device (32, 35a - 35h), which is then transported to the motor vehicle (2) and interconnected therewith.
EP10734654A 2009-06-15 2010-06-15 Device for interconnection with a motor vehicle Withdrawn EP2442996A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200970029 2009-06-15
PCT/DK2010/050138 WO2010145661A2 (en) 2009-06-15 2010-06-15 Device for interconnection with a motor vehicle

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DK201100052U4 (en) * 2011-03-15 2012-07-13 Pendelmatic Internat V Jan Moeller Motor vehicle with a battery change station
DE102012022049A1 (en) * 2012-11-09 2014-05-15 Man Truck & Bus Ag Hanger for a commercial vehicle
DE102012022006A1 (en) * 2012-11-09 2014-05-15 Man Truck & Bus Ag Trailer for at least supporting driving a commercial vehicle and / or a commercial vehicle trailer
RU2669758C1 (en) * 2017-12-25 2018-10-15 Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" Rolling trailer trolley

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DE4105246A1 (en) 1991-02-20 1992-08-27 Salzmann Heinz Werner Vehicle with battery-supplied electric drive - has individual suspension for rear wheels and component with at least one wheel fitted between rear wheels taking battery wt.
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