DE102014213050A1 - Apparatus and method for providing energy to a motor vehicle - Google Patents

Abstract

The invention relates to a device for providing energy for a motor vehicle (100), the device (1)) being mobile and comprising: a charging interface device (10) which is designed to transmit high-voltage energy by means of an energy transmission for the motor vehicle ( 100) to provide; and a communication interface device (20) which is coupled to the charging interface device (10) and which is designed to exchange data with the motor vehicle.

Description

Technical area

The present invention relates to a power supply. In particular, the present invention relates to an apparatus and method for providing energy to a motor vehicle.

Technical background

In modern vehicles, electric drives are increasingly being used which require an electrical power supply. Battery electric vehicles, in English "Battery Electric Vehicle", BEV for short, and plug-in hybrid vehicles need a charging device to charge the traction battery.

This charging device can be shown conductive and inductive, according to the form of representation, the electrical energy is transmitted via a cable connection or an induction charging unit. Usually, the vehicle must be at a standstill.

Summary of the invention

It is an object of the present invention to provide an electrical power supply for a vehicle.

This object is solved by the subject matters of the independent claims. Embodiments and further developments can be taken from the dependent claims, the description and the figures.

A first aspect of the invention relates to a device for providing energy to a motor vehicle, the device being mobile and comprising: a charging interface device which is designed to provide high-voltage energy by means of an energy transmission for the motor vehicle; and a communication interface device coupled to the charging interface device and configured to communicate with the motor vehicle.

By the term "data exchange with the motor vehicle" as used by the present invention may be understood, for example, a bidirectional or an omnidirectional design of the communication interface device, which advantageously allows both data received from the communication interface device and transmitted by the communication interface device can be. In particular, the communication interface device is set up to determine an energy amount of the energy transfer, and to transmit or collect billing data taking into account an energy price.

By the term "the device is mobile" as used by the present invention, it can be understood that the device is movable and can be moved to different locations of use.

In other words, the device is, for example due to their size and / or weight and / or their construction and / or their independence from another fixed infrastructure - in contrast to a stationary charging station - transportable and therefore mobile.

That For example, the device can be used at any location, and the device can provide energy for a motor vehicle at any location.

The operation of the device, i. the provision of energy for a motor vehicle, can be done stationary or while driving, i. in a moving place.

For example, the device may be permanently integrated into a motor vehicle having an energy source for the device, the motor vehicle being referred to as a source vehicle.

The term "integrated into a motor vehicle" as used by the present invention may denote that the device is installed in the motor vehicle by means of connecting elements.

Furthermore, the device can be coupled to an energy-requiring motor vehicle, which is referred to as a sink vehicle, for example.

It also two vehicles can be operated alternately as a source and sink vehicle in temporary change.

The term "vehicle" or "motor vehicle" as used by the present invention may include, for example, any motor driven non-rail vehicle, such as motor vehicles, motorcycles and tractors, or non-permanently track guided land vehicles moved by machine power ,

In particular, the term "motor vehicle" as used in the present invention includes two- and three-wheeled and light four-wheeled vehicles Motor vehicles, motor vehicles, mopeds, motorcycles, mopeds, including bicycles with auxiliary motor and electric scooters, pedelecs, keyword for "pedal electric cycle", an electric bicycle version, light motor vehicles, scooters, passenger cars, amphibious vehicles, snowmobiles, buses, trucks, commercial vehicles, utility vehicles, Tractors Agricultural or forestry tractors or tractors or self-propelled machines.

According to another aspect of the present invention, there is provided a motor vehicle assembly, wherein the plurality of motor vehicles comprises at least one source vehicle and at least one sink vehicle, wherein the plurality of motor vehicles form a star topology or a linear topology or a bus topology or an annular topology.

According to a further aspect of the present invention, a method is provided, the method comprising the following steps: providing high-voltage energy for the motor vehicle by means of a charging interface device; and providing a data transmission channel for the motor vehicle by means of a communication interface device.

For example, the term "high voltage power" as used by the present invention refers to electrical systems that provide or receive electrical energy, such as voltage, power, or power sources, which in the case of AC voltages are rated at 12V or 14V or 24 V or 36 V or 42 V (RMS voltage) or, in the case of DC voltage (rated value), exceed 12 V or 14 V or 24 V or 36 V or 42 V or 60 V. In particular, a "high-voltage energy" refers to a transfer of electrical energy at a voltage of at least 200 V, or 300 V or 350 V (nominal value).

Advantageous embodiments of the invention are characterized in the subclaims.

The present invention is characterized in that an electrical supply or charging connection between a motor vehicle, such as a battery electric vehicle or a hybrid motor vehicle, and another mobile unit, such as a battery electric vehicle or a hybrid motor vehicle, is provided which serves as an energy source ,

The motor vehicle or the battery-electric vehicle may be an electric vehicle or a hybrid motor vehicle.

Preferably, the mobile unit is another motor vehicle, trailer or other mobile device.

The term "trailer" as used by the present invention may include, for example, a trailer or a vehicle without further drive.

The energy source of the present invention can advantageously provide, for example, electrical energy in high-voltage form, so that a motor vehicle or a battery-electric vehicle or a fuel cell vehicle or a vehicle can be charged and / or operated with at least one energy storage system with an electrical charging interface.

For example, this can be achieved with the aid of an on-board electrolyzer.

In this case, a battery or an electrical energy store or a generator can be used as the electrical energy generating system. For example, the generator can be driven by an internal combustion engine.

Furthermore, the energy source can advantageously be designed as an electrochemical energy source and / or as a fuel cell. Furthermore, any combination of an electrical energy storage, an electrochemical energy source and a fuel cell can be used as an energy source, such as a fuel cell with an electrochemical energy source, such as in the form of a rechargeable battery.

Further, the energy source may be an energy source that uses the source vehicle for traction.

In an advantageous embodiment of the present invention it is provided that the device comprises at least one traction device.

As the at least one traction device, for example, an engine that converts an energy form such as thermal chemical or electrical energy into mechanical energy, mechanical work, such as an electric motor or an internal combustion engine or an internal combustion engine.

In an advantageous embodiment of the present invention it is provided that the device is designed to be used during a journey, in other words, in mobile use.

In an advantageous embodiment of the present invention, it is provided that the charging interface device is designed to be coupled to the motor vehicle via a mechanical coupling.

In an advantageous embodiment of the present invention, it is provided that the charging interface device is designed to use a towing cable as the mechanical coupling.

This can be towed advantageous motor vehicle.

In a further advantageous embodiment of the present invention, it is provided that the charging interface device is designed to use a towing bar as the mechanical coupling.

This advantageously makes it possible for an electrical connection to the charging interface device to be provided at the coupling of the towing cable.

In an advantageous embodiment of the present invention, it is provided that the charging interface device is designed to be coupled to the motor vehicle via an inductive coupling.

In an advantageous embodiment of the present invention, it is provided that the charging interface device is designed to be coupled to the motor vehicle via a conductive coupling.

Advantageously, in addition to the inductive coupling, a capacitive or an ohmic coupling can take place.

Advantageously, the transmitted energy can be used both for charging a high-voltage accumulator of the lowering vehicle and for driving the lowering vehicle.

Advantageously, the source vehicle can also be driven by the high-voltage energy provided.

Advantageously, as the mechanical coupling a towing bar can be used, which allows a mechanical energy transfer. The mechanical energy transmission may include a tensile force or a thrust coupling. Furthermore, an electrical energy transfer can take place without a mechanical coupling and the transmitted energy can be used to drive the lowering vehicle.

For example, an energy transfer occurs through an inductive coupling and braking or acceleration commands are transmitted from the source vehicle to the sink vehicle, or vice versa, via the data link.

The braking or acceleration commands allow, for example, a distance control cascaded if necessary for a plurality of coupled vehicles.

When driving the battery-electric motor vehicle, among other things, the following two variants are possible: on the one hand, a manual control of the battery electric unit via the driver and on the other hand, a control of the battery electric vehicle via a mobile charging unit. This corresponds, for example, to a master-slave configuration.

The mobile charging unit acts as a master and optionally specifies, for example, the desired torque or the target speed of the battery-electric vehicle.

Further, the mobile charging unit may provide a distance between the mobile charging unit and the battery electric vehicle. Furthermore, this can advantageously be provided by a distance control of the motor vehicle.

Existing charging interfaces, charging connectors and communication interfaces, charging plugs, WLAN etc. can preferably be used as the control and energy transmission interface. A separate interface may also be provided.

Further, a power transmission cable may be used, wherein sagging of the power transmission cable may be detected, and closed-loop control may be used to control the distance.

Further advantageously, traction monitoring of sagging of the power transmission cable may be accomplished via suitable sensors, e.g. by camera or by tensile force measurement, be provided.

Furthermore, a coupling of more than two vehicles can advantageously be provided. For example, three vehicles can form a composite called a colon. For example, an intercity large-scale traffic can be realized, such as a combination of several vehicles between two urban centers. In this vehicle configuration, the energy efficiency can be optimized so that losses, such as driving resistance, in Sum over the column can be reduced, for example by using the wind shadow.

An energy split can take place between the vehicles involved in the column.

As a further embodiment, a leader vehicle can be provided in the convoy, which tunes the requirements of all participants or vehicles.

In one embodiment of the invention, the energy interface can be formed as a cable for a DC voltage network but also preferably an AC voltage network or a three-phase voltage network, which is realized with a plurality of cables and plugs.

Further, the present invention may advantageously use short-term participation of the frontman's slipstream. Using automated driving and Car2Car communication, such a function can be performed for short periods of time that were not previously scheduled.

The following vehicle can thereby advantageously save energy, the leading vehicle needs only slightly more energy. By means of the present invention, such a concept is conceivable, because the following vehicle can provide compensation for its additional energy by transmitting electrical energy to the person in front. Thus, such a connection would be to mutual energy advantage. If the electrical connection preferably takes place inductively, this model can also be used for only short distances approximately in the length of a road block.

The described embodiments and developments can be combined with each other as desired.

Further possible refinements, developments and implementations of the present invention also include combinations of features of the invention which have not been explicitly mentioned above or described below with regard to the exemplary embodiments.

Brief description of the figures

The accompanying drawings are intended to provide further understanding of the embodiments of the invention. The accompanying drawings illustrate embodiments and together with the description serve to explain concepts of the invention.

Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The illustrated elements of the drawings are not necessarily shown to scale to each other.

Show it:

1 a schematic representation of a device for providing energy for a motor vehicle according to an embodiment of the invention; and

2 a schematic representation of a flowchart of a method for providing energy for a motor vehicle according to another embodiment of the invention; and

3 a schematic representation of a device for providing energy for a motor vehicle according to an embodiment of the invention.

Detailed description of embodiments

In the figures of the drawings, like reference characters designate like or functionally identical elements, components, components or method steps, unless indicated otherwise.

The 1 shows a schematic representation of a device for providing energy for a motor vehicle according to an embodiment of the invention.

A device for providing energy for a motor vehicle 100 includes, for example, a charging interface device 10 and one with the charging interface device 10 coupled communication interface device 20 ,

In this case, the coupling of the charging interface device 10 with the communication interface device 20 via a data or communication connection 2 respectively.

For coupling to the motor vehicle can for the charging interface device 10 an electrical power connection 32 be provided for the transmission of high-voltage energy by means of energy transfer and for the communication interface device 20 can be a data connection 22 be provided, which is adapted to transfer data to the motor vehicle or to exchange with the motor vehicle.

The charging interface device 10 For example, it can be designed to provide high-voltage energy by means of an energy transmission for the motor vehicle 100 provide.

The communication interface device 20 For example, it may be configured with the charging interface device 10 be coupled and transmit data to the motor vehicle or exchange with the motor vehicle.

The 2 shows a schematic representation of a flowchart of a method for providing energy for a motor vehicle according to another embodiment of the invention.

As a first method step, for example, provision S1 of high-voltage energy for the motor vehicle takes place 100 by means of a charging interface device 10 ,

As a second method step, for example, provision S2 of a data transmission channel for the motor vehicle takes place by means of a communication interface device 20 ,

The 3 shows a schematic representation of a device for providing energy for a motor vehicle according to an embodiment of the invention.

The 3 represents a motor vehicle assembly with two vehicles. The vehicles form, for example, a linear topology.

A motor vehicle 200 has a device 1 for providing energy for a motor vehicle 100 on.

The car 200 is, for example, a source vehicle and the motor vehicle 100 for example, a sink vehicle.

In this case, for example, for one with the motor vehicle 200 coupled motor vehicle 200 High-voltage energy can be provided.

For example, the coupling takes place via a tow rope 30 ,

The device and the method for providing energy for a motor vehicle can advantageously be used in the course of breakdown assistance during standstill of the vehicles in the course of breakdown assistance while the vehicles are being driven.

Further, the apparatus and method for providing energy for a motor vehicle may be used for range extension between population centers for one or more sink vehicles. In this case, a source vehicle can provide a composite of several lowering vehicles while driving with electrical energy.

Although the present invention has been described above with reference to preferred embodiments, it is not limited thereto, but modifiable in a variety of ways. In particular, the invention can be varied or modified in many ways without deviating from the gist of the invention.

In addition, it should be noted that "comprising" and "having" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.

It should also be appreciated that features or steps described with reference to any of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limitations.

Claims (11)

Device for providing energy for a motor vehicle ( 100 ), the device ( 1 ) is mobile and comprises: - a charging interface device ( 10 ), which is designed to high-voltage energy by means of an energy transfer for the motor vehicle ( 100 ) to provide; and - a communication interface device ( 20 ) connected to the charging interface device ( 10 ) and which is adapted to exchange data with the motor vehicle. Device according to claim 1, wherein the device ( 1 ) comprises at least one traction device. Apparatus according to claim 1 or 2, wherein the device is adapted to be used during a drive of the motor vehicle. Device according to one of the preceding claims 1 to 3, wherein the charging interface device ( 10 ) is adapted to be coupled to the motor vehicle via a mechanical coupling. Apparatus according to claim 4, wherein the Charger interface device ( 10 ) is designed to use as the mechanical coupling a tow rope or a tow bar. Device according to one of the preceding claims 1 to 5, wherein the charging interface device ( 10 ) is adapted to be coupled to the motor vehicle via an inductive coupling. Device according to one of the preceding claims 1 to 6, wherein the charging interface device ( 10 ) is adapted to be coupled to the motor vehicle via a conductive coupling. Motor vehicle with a device according to one of the preceding claims 1 to 7. A motor vehicle assembly having a plurality of motor vehicles according to claim 8, wherein the plurality of motor vehicles comprises at least one source vehicle and at least one sink vehicle, wherein the plurality of motor vehicles form a star-shaped topology or a linear topology or a bus-shaped topology or an annular topology. Motor vehicle assembly according to claim 9, wherein the lowering vehicle is adapted to generate a traction torque for driving or wherein the source vehicle is adapted to generate a traction torque for driving. Method for providing energy for a motor vehicle ( 100 ), wherein the method comprises the following method steps: - providing (S1) high-voltage energy for the motor vehicle ( 100 ) by means of a charging interface device ( 10 ); and - providing (S2) a data transmission channel for the motor vehicle by means of a communication interface device ( 20 ).

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