DE102017212435A1 - An adapter device for a vehicle and method for loading a vehicle - Google Patents

Abstract

The invention relates to an adapter device (10) for connecting a charging socket (12) of an electrically driven vehicle (14) to a charging column plug (22) belonging to a multi-core charging cable (20), wherein the adapter device (10) is formed, at least one coordination signal between at least one transmission core (36, 38) of the charging cable (20) and the charging socket (12), wherein the adapter device (10) for a connection operation, in which the charging socket (12) of the vehicle (14) with a charging socket (16) a vehicle (18) via the charging cable (20) and the adapter device (10) is connected, has an integrated switching electronics (30), which provides a coordination signal or passes on the transfer core (36, 38) before or while the adapter device (10 ) in a transmission mode receives electrical energy from a traction battery of the vehicle (14) and a traction battery of the other Fah tool (18), the coordination signal coordinating respective chargers of the vehicles (14, 18). The invention also relates to methods for loading a vehicle (14, 18) by means of the adapter device (10).

Description

The invention relates to an adapter device for connecting a first charging socket of a first electrically driven vehicle with a charging column plug belonging to a multi-core charging cable and a method for charging a first traction battery of the first vehicle by means of the electrical energy of a second traction battery of a second vehicle.

According to the current state of the art, jump-starting between two electrically driven vehicles, in particular electric vehicles, is not possible. That is, charging an empty battery, in particular traction battery of a first electric vehicle with the electrical energy from a second traction battery of the second vehicle, which may be referred to as a donor vehicle, is not provided or feasible.

The DE 10 2011 007 763 A1 discloses an adapter cable for converting a terminal of a first type provided on a vehicle charging cable into a terminal of a second type, the first type terminal for connection to a first type corresponding mating terminal and the second type terminal for connection to a corresponding mating terminal of the second type Type is provided.

The WO 2014/005567 A2 discloses a charging device for an electric vehicle having a charging cable comprising at least one electrical connector, wherein the electrical connector comprises AC electrical contacts for AC charging and DC electrical contacts for DC charging, characterized by at least one adapter for connecting the AC electrical contacts of the electrical connector with a socket for AC.

The two cited documents have in common that they each provide an adapter device, by means of which power from a socket by means of the adapter cable or the charging device can be introduced into the vehicle.

Furthermore, the DE 10 2013 224 735 A1 a charging cable device having a cable with one end detachable from an electric power source or other charging cable device and an electric power line supplying electricity from the electric power source or other charging cable device to a vehicle.

In the context of bidirectional charging, it will in future be possible to implement a so-called vehicle-to-vehicle charging (abbreviated as V2V charging), that is to say the charging of a first vehicle by a second vehicle enable. In addition to the challenge for the vehicles involved in V2V charging to implement this bidirectional energy exchange, a possibility of energy exchange or energy transfer must be created.

Object of the present invention is to provide a way by which a V2V charging between two electrically powered vehicles, in particular user-friendly, is feasible.

The object is solved by the subject matters of the independent claims. Advantageous developments of the invention are described by the dependent claims, the following description and the figures.

The invention provides an adapter device which makes it possible to connect a first charging socket of a first electrically driven vehicle to a charging column plug belonging to a multi-core charging cable, wherein the charging column plug is designed for plugging into a charging column socket of a charging column. For this purpose, the adapter device at one end has a coupling and at the other end a plug. A coupling corresponds to a socket. The adapter device is designed to forward at least one coordination signal between at least one transmission core of the charging cable and the first charging socket. Thus, signal transmission across the adapter device is possible.

In order to make the V2V charging particularly advantageous, a connection operation can be realized with the adapter device according to the invention, in which the first charging socket of the first vehicle is connected to a second charging socket of a second electrically driven vehicle via the charging cable and the adapter device. The adapter device has an integrated switching electronics, which is designed such that it provides a coordination signal or passes on the transfer core before or while the adapter device in a first transmission mode receives electrical energy from a first traction battery of the first vehicle and the second charging socket of a second Traction battery of the second vehicle supplies, wherein the coordination signal coordinates respective chargers of the vehicles, so that one of the vehicles is operable as a donor vehicle and the other as a receiver vehicle of electrical energy. There is one respective charger of the respective vehicle is designed to coordinate the removal or supply of electrical energy or electric current from or to the respective traction battery of the respective vehicle or to control and / or to regulate.

Particularly advantageous and user-friendly for a user on the adapter device according to the invention is that a conventional charging cable, such as a Mode 3 charging cable, is connectable to the adapter device for charging a vehicle. Such a charging cable is used for charging on public, especially with alternating current operated charging stations and will be delivered in the future with the vehicle in the standard scope and be carried along with this. The plugs of such a charging cable are different at both ends, with a plug for the vehicle side, as a so-called vehicle plug, and the other for the charging station, as a so-called charging column plug is formed. About the adapter device according to the invention, the charging cable, the two vehicles, in particular for a power exchange, connect, since the charging column plug of the cable is converted by means of the adapter device into a plug for the charging socket of a vehicle or extended to it, wherein the adapter device between the first charging socket and charging column plug located.

In a further development, it is provided that the switching electronics is designed such that it receives electrical energy from the first traction battery of the first vehicle in a first transmission mode and supplies the second traction battery of the second vehicle via the charging cable connected to it and the second charging socket and / or receives in a second transmission mode electrical energy from the second traction battery of the second vehicle via the charging cable connected to the second charging socket and feeds them via the first charging socket of the first traction battery of the first vehicle. In other words, with the second transmission mode, unlike the first transmission mode, it is possible to make flow of electrical energy to flow from the second traction battery via the second charging socket, into the charging cable, and further through the adapter device and the first one Charging socket flows into the first traction battery. This results in the advantage that the user does not have to pay attention to whether he connects the adapter device to the first or the second vehicle, regardless of which of the two vehicles to be loaded.

In a further development, it is provided that the adapter device has a securing element which prevents or interrupts a flow of electrical energy through the adapter device in the event of an overvoltage of the charging cable occurring at at least one wire. In other words, the fuse element is used to stop a current flow or the flow of electrical energy through the adapter device, if, for example due to damage to an overvoltage and / or excessive current flow and / or a short circuit, due to a defect on one of the vehicles or a the chargers or the charging sockets one of the vehicles and / or comes on the adapter device. This results in the advantage that the user of the adapter device is protected from at least one electric shock.

In a further development, it is provided that the switching electronics are designed such as to provide the coordination signal such that the adapter device can output or output at least in relation to one of the vehicles as an electronic charging station. In other words, especially in the event that one of the two vehicles does not support V2V charging, this vehicle can receive a coordination signal provided by the adapter device, so that the charger of that vehicle recognizes the charging adapter as a charging station and the vehicle thus reacts as it would draw electrical energy from a conventional charging station. This results in the advantage that the vehicle, which does not support the V2V charging can still be loaded by means of the adapter device, since the adapter device can play or emulate the not V2V standard compliant receiver vehicle one, especially AC, charging station.

In a further development, it is provided that the switching electronics have an electronic computing device. In other words, the switching electronics is designed so that it is able to execute at least simple programs for a control and / or regulation and / or generation of, for example, coordination signals. As a result, the switching electronics is able to provide, for example, the coordination signal, particularly advantageous, or to vary this example, depending on the type of vehicle to be charged.

In a further development, it is provided that the at least one coordination signal, which is shaped as a signal of a charging station, is generated by means of software emulation of a charging station control program. In other words, by the software emulation, which is executed or carried out in particular on the electronic computing device of the switching electronics, a charging station or the Charging column control program a charging station, for example, one, in particular AC, charging station are emulated so that the coordination signal receives the shape or characteristics of a signal of the charging station and thus is no longer distinguishable from this, in particular from the vehicle to be charged. In particular, different signals of different charging columns can thereby be formed, which has the advantage that the greatest possible compatibility of vehicles to be charged is achieved.

In a further development, it is provided that the adapter device has a switching unit which, for example, comprises a DC / DC converter and / or AC / AC converter, which is set up to switch a flow direction of the electrical energy between the first and the second vehicle , In other words, the switching unit enables switching between the first transmission mode and the second transmission mode. This results in the advantage that the user of the adapter device does not have to select an operating mode loading and / or unloading in each of the two vehicles. Depending on whether such a switching is provided in a V2V-chargeable vehicle or not, it can thus be switched by means of the adapter device very user-friendly.

Thanks to the adapter device according to the invention, the respective user of the vehicle can refrain from carrying their own V2V charging cable developed for V2V charging, the adapter device can be designed so that it is significantly smaller, lighter and easier to handle than a V2V charging cable , By the switching electronics and in one embodiment additionally by the fuse element, all components required for V2V charging are integrated in the adapter device to a, in particular standard Mode-3 charging cable for charging the traction battery of a vehicle by means of the electric energy of the traction battery of another vehicle to enable.

Furthermore, the invention comprises a method for charging a first traction battery of a first vehicle by means of the electrical energy of a second traction battery of a second vehicle, wherein for charging the adapter device according to the invention is used.

The invention also includes developments of the method according to the invention, which have features as they have already been described in connection with the developments of the adapter device according to the invention. For this reason, the corresponding developments of the method according to the invention are not described again here.

• 1 eine schematische Darstellung eines Verbindungsbetriebs einer Adaptervorrichtung, mittels welchem eine erste Ladebuchse eines ersten Fahrzeugs mit einer zweiten Ladebuchse eines zweiten Fahrzeugs über ein Ladekabel und die Adaptervorrichtung verbunden ist;
• 2 eine perspektivische, schematische Darstellung einer Ausführungsform der Adaptervorrichtung; und
• 2 eine schematische Darstellung einer Kupplung der Adaptervorrichtung, in welcher ein Ladesäulenstecker des Ladekabels einsteckbar ist.

In the following, embodiments of the invention are described. This shows:

• 1 a schematic representation of a connection operation of an adapter device, by means of which a first charging socket of a first vehicle with a second charging socket of a second vehicle via a charging cable and the adapter device is connected;
• 2 a perspective, schematic representation of an embodiment of the adapter device; and
• 2 a schematic representation of a coupling of the adapter device, in which a charging column plug of the charging cable can be inserted.

The exemplary embodiments explained below are preferred embodiments of the invention. In the exemplary embodiments, the described components of the embodiments each represent individual features of the invention, which are to be considered independently of one another, which each further develop the invention independently of one another and thus also individually or in a different combination than the one shown as part of the invention. Furthermore, the described embodiments can also be supplemented by further features of the invention already described.

In the figures, functionally identical elements are each provided with the same reference numerals.

1 shows a schematic representation of a connection operation of an adapter device 10 , by means of which a first charging socket 12 a first electrically powered vehicle 14 with a second charging socket 16 a second electrically driven vehicle 18 via a charging cable 20 and the adapter device 10 connected is. The adapter device 10 is designed to connect the first charging socket 12 of the first vehicle 14 with to, in particular multi-core, charging cable 20 belonging Ladesäulenstecker 22 to realize. The charging column plug 22 is designed for plugging into a charging station socket of a charging station.

Furthermore, the charging cable points 20 a vehicle plug 24 on, which in the second charging socket 16 of the second vehicle 18 plugged or plugged. The adapter device 10 has one end a clutch 26 on, in which the charging column plug 22 plugged or plugged in, especially for the connection operation. At the other end, the adapter device 10 a plug 28 on, which in the first charging socket 12 of the first vehicle 14 plugged or plugged.

The adapter device 10 is characterized by the fact that it allows a store, more precisely a so-called V2V charging (from English: Vehicle to (2) Vehicle Charging) and also very user-friendly. To charge one of the two vehicles 14 respectively 18 through the other vehicle 18 respectively 14 to realize is the adapter device 10 adapted to at least one coordination signal between at least one transmission core of the multi-core charging cable 20 and the first charging socket 12 forward.

Is the in 1 shown connection operation by the adapter device 10 realized, one in the the adapter device 10 integrated switching electronics 30 For example, a first transmission mode ready, in which the adapter device 10 electrical energy from a first traction battery of the first vehicle 14 and via the charging cable connected to it 20 and the second charging socket 16 a second traction battery of the second vehicle 18 fed.

By means of the adapter device 10 For example, instead of the first transmission mode, a second transmission mode can be carried out in which electrical energy from the second traction battery of the second vehicle 18 on the second charging socket 16 connected charging cable 20 from the adapter device 10 received and over the first charging socket 12 to the first traction battery of the vehicle 14 is dissipated. In order to be able to switch between the first and second transmission modes or to switch between these two transmission modes, the adapter device has 10 advantageously a switching unit 32 which is adapted to a flow direction of the electric energy between the first vehicle 14 and the second vehicle 18 switch. Preferably, the switching unit 32 an AC / AC converter, by means of which a switching of the current flow direction can be realized.

Target with the adapter device 10 for example, the vehicle 18 or its traction battery are charged and is the vehicle 18 not designed as a V2V-compliant vehicle, the switching electronics 30 a coordination signal, in particular at the at least one transmission core, provide, by means of which the adapter device 10 opposite the vehicle 18 as an electric charging station outputs. This is the switching electronics 30 advantageously designed so that it has an electronic computing device. By electronic computing device is the switching electronics 30 in a particularly advantageous manner able to emulate by means of a, in particular on the electronic computing device running or running, software Emulation a charging station control program, which corresponds to the signal of a real charging station. This is how the vehicle recognizes 18 , in particular its charger, the adapter device 10 as a charging station and thereby, although it is not V2V compliant, electrical energy from the traction battery of the vehicle 14 Respectively.

To the risk of electric shock to a user of the adapter device 10 which is one of the vehicles 14 or 18 wants to load, exclude, assigns the adapter device 10 advantageously a securing element 34 on, which in the case of overvoltage, which at least one core of the multi-core charging cable 20 may occur, a flow of electrical energy through the adapter device 10 in derogation. Thanks to the fuse element 34 There is thus no risk of electric shock to the user of the adapter device 10 ,

2 shows a perspective, schematic representation of an embodiment of the adapter device 10 , wherein the adapter device 10 a grip element 11 by means of which the adapter device 10 User-friendly in the charging socket from the user 12 . 16 can be inserted or inserted. A release lock 13 prevented in an inserted state, that is in the connection operation, accidental release of the plug 28 from the charging socket 12 . 16 ,

3 shows a schematic representation of the coupling 26 the adapter device 10 , in which the charging column plug 22 of the charging cable 20 is pluggable. Here is the clutch 26 designed in the embodiment shown so that seven wires 36 to 48 at the clutch 26 are arranged. These seven veins 36 to 48 has the charging cable 20 which is a Mode 3 charging cable of the type. In the example of the coupling shown 26 each forms one of the two wires 36 and 38 in each case at least one said transmission core, wherein at least one of the wires 36 and or 38 the coordination signal through the adapter device 10 leads, or the switching electronics 30 the coordination signal on at least one of the two wires 36 and 38 provides. The vein 40 serves as a protective contact. The veins 42 to 48 typically lead by means of the adapter device 10 carried AC charge the charging current. In an alternative DC charging, the two wires 42 and 44 provide the positive voltage of the charging energy or the charging current, whereas on the wires 46 and 48 the negative pole of the voltage and thus of the electric charging current is. The shape of the coupling 26 as well as an assignment of the individual wires 36 to 48 can vary and thus deviate from the embodiment shown, for example, country-specific variants may be possible, such as a respective variant for USA, China, Japan, as well as a separate variant for the EU.

Overall, the examples, such as by the invention, show the charging of the first traction battery of the first vehicle 14 respectively 18 by means of the adapter device according to the invention 10 by in the second traction battery of the second vehicle 18 respectively 14 stored electrical energy is realized.

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 102011007763 A1 [0003]
• WO 2014/005567 A2 [0004]
• DE 102013224735 A1 [0006]

Claims (8)

Adapter device (10) for connecting a first charging socket (12) of a first electrically driven vehicle (14) with a charging column plug (22) belonging to a multi-core charging cable (20), which is designed for plugging into a charging column socket of a charging station, wherein the Adapter device (10) at one end has a coupling (26) and at the other end a plug (28), wherein the adapter device (10) is formed, at least one coordination signal between at least one transmission core (36, 38) of the charging cable (20) and the first charging socket ( 12), characterized in that the adapter device (10) for a connection operation, in which the first charging socket (12) of the first vehicle (14) with a second charging socket (16) of a second electrically driven vehicle (18) via the charging cable ( 20) and the adapter device (10) is connected to an integrated switching electronics (30), which is designed such that It provides or passes on a coordination signal via the at least one transmission core (36, 38) before or while the adapter device (10) receives electrical energy from a first traction battery of the first vehicle (14, 18) and via the second charging socket (16, 12 ) to a second traction battery of the second vehicle (18, 14), the coordination signal coordinating respective chargers of the vehicles (14, 18). Adapter device (10) according to Claim 1 , characterized in that the switching electronics (30) is designed such that in a first transmission mode it receives electrical energy from the first traction battery of the first vehicle (14) and via the charging cable connected to the adapter device (10) and the second charging socket (16 ) of the second traction battery of the second vehicle (18) and / or in a second transmission mode receives electrical energy from the second traction battery of the second vehicle (18) via the charging cable (20) connected to the second charging socket (16) and via the first Charging socket (12) of the first traction battery of the first vehicle (14) supplies. Adapter device (10) according to one of the preceding claims, characterized in that the adapter device (10) has a securing element (34), which in the event of overvoltage on at least one core (36-48) of the charging cable (20) a flow of electrical energy prevented by the adapter device (10). Adapter device (10) according to any one of the preceding claims, characterized in that the switching electronics (30) is designed so as to provide the coordination signal, by means of which the adapter device (10) at least with respect to one of the vehicles (14, 18) as a electric charging station outputs. Adapter device (10) according to Claim 4 , characterized in that the switching electronics (30) comprises an electronic computing device. Adapter device (10) according to Claim 4 or 5 , characterized in that the at least one coordination signal, which is shaped as a signal of a charging station, is generated by means of a software emulation of a charging station control program. Adapter device (10) according to one of the preceding claims, characterized in that the adapter device (10) has a switching unit (32) which is adapted to a flow direction of the electrical energy between the first vehicle (14) and the second vehicle (18). switch. A method for charging a first traction battery of a first vehicle (14) by means of the electrical energy of a second traction battery of a second vehicle (18), characterized in that for charging an adapter device (10) according to one of the preceding claims is used.

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