DE102022104557A1 - Vehicle, vehicle assembly, method for charging a battery of a vehicle and use of a charging connection - Google Patents

Abstract

The invention relates to a vehicle comprising at least one battery; at least one charging port, wherein the vehicle is connectable to a power supply point via the charging port to charge the battery, and wherein the vehicle is connectable to another vehicle via the charging port to supply electrical energy from the battery to the other vehicle; and at least one control system, wherein the control system is set up to control the charging of the battery when the vehicle is connected to the energy supply point via the charging connection, and the control system is set up to control the supply of the further vehicle with electrical energy from the battery, if the vehicle is connected to the other vehicle via the charging connection.

Description

technical field

The invention relates to a vehicle with a charging connection. Furthermore, the invention relates to a combination of vehicles with a first vehicle and a second vehicle. In a further aspect, the invention relates to a method for charging a battery of a vehicle. A further aspect of the invention lies in the use of a charging connection of a vehicle for connecting the vehicle to a second vehicle.

Technical background

Vehicles are increasingly being produced as electric vehicles. An electric vehicle includes an electric motor and a battery for storing electrical energy used to power the electric motor. To charge the battery of a vehicle, a charging interface is required to connect the vehicle to an energy source, e.g. a charging station. The charging interface with the associated control are additional components that have to be integrated into the vehicle.

In commercial vehicles in particular, e.g. buses or trucks, several charging interfaces per vehicle can be provided, since positioning the vehicle so that the charging interface is close to the connection of the energy source is more difficult in practice in commercial vehicles than in other vehicles, e.g cars. In addition, utility vehicles often include connectors for connecting a second vehicle, such as a trailer. The second vehicle can be supplied with electrical energy via the connections in order to supply electrical energy to components such as an air conditioning system or a drive of the second vehicle. A communication path between the vehicle and the second vehicle can also be formed via the connections in order to exchange data or signals between the vehicles. The vehicle and the second vehicle are also coupled mechanically, for example by a trailer device.

Summary of Revelation

An object of the invention is to provide a vehicle whose structure is less complex and which can be manufactured at low cost. Another object of the invention is to provide a vehicle that can be easily connected to a second vehicle by a user. A still further object is to provide a vehicle network with two vehicles, in which case the vehicles can be connected easily and with increased security. Yet another object is to provide a vehicle or a combination of vehicles whose battery can be charged in an improved manner. A still further object is to provide a vehicle that can communicate with a second vehicle in an improved manner.

At least one of the objects is solved by the features of the independent claims. Preferred embodiments are defined in the dependent claims.

A vehicle comprising at least one battery, at least one charging connection and at least one control system is disclosed. The vehicle can be connected to an energy supply point via the charging connection in order to charge the battery. The vehicle can be connected to another vehicle via the charging connection in order to supply electrical energy from the battery to the other vehicle. The control system is set up to control the charging of the battery when the vehicle is connected to the energy supply point via the charging connection. The control system is set up to control the supply of electrical energy from the battery to the further vehicle when the vehicle is connected to the further vehicle via the charging connection.

On the one hand, the vehicle can be connected to an energy supply point via the charging connection and, on the other hand, the vehicle can be connected to a second vehicle via (the same) charging connection in order to supply the second vehicle with at least electrical energy from the battery of the vehicle. Due to the dual function of the charging connection during charging of the battery of the vehicle and for supplying energy to a second vehicle which is coupled to the vehicle, an additional interface for supplying energy to the second vehicle from the vehicle's battery can be avoided. This makes the structure of the vehicle less complex and the handling of connecting the second vehicle to the vehicle is made easier.

The vehicle can be a commercial vehicle or a car. In particular, the vehicle is a bus or a truck. The vehicle can be an electric vehicle. The vehicle can include an electric motor, which is supplied with electrical energy in particular by the battery of the vehicle. The electric motor can propel the vehicle or assist in propelling the vehicle (at least part of the time). The vehicle may include an internal combustion engine. The engine may be provided in the vehicle in addition to an electric motor. This preferably includes driving don't make an internal combustion engine. The drive of the vehicle can be provided (exclusively) by an electric motor.

The additional vehicle is in particular a vehicle without its own drive. The other vehicle can be a trailer or trailer. Alternatively, the additional vehicle can have its own drive. The other vehicle may have the same features as any vehicle described herein.

The battery can be designed to provide electrical energy for driving the vehicle. In particular, the battery can provide electrical energy for an electric motor to drive the vehicle. The battery can be a high-voltage battery. The battery preferably comprises lithium, and the battery is particularly preferably a lithium-ion battery or a lithium-polymer battery.

The charging connection can be set up to accommodate a plug. The vehicle can be connected to an energy supply point through the charging connection in order to charge the battery of the vehicle. Alternatively or additionally, the charging connection can be set up to connect the vehicle to an energy supply point in order to supply components of the vehicle with energy, in particular without charging the battery. The charging connection can be a high-voltage charging connection.

The energy supply point can be a charging point, for example a charging station. The energy supply point can provide electrical energy. In particular, the energy supply point can provide electrical energy for the vehicle, for example to charge the battery of the vehicle and/or to supply components of the vehicle.

The vehicle can be connected to the energy supply point via the charging connection in a first period of time. In the first period, the vehicle can be supplied with electrical energy from the energy supply point in order to charge the battery of the vehicle and/or to supply components of the vehicle with electrical energy. In a second period, the vehicle can be connected to a second or further vehicle via (the same) charging connection. In the second time period, the vehicle can provide electrical energy, for example from the battery of the vehicle, to the second or additional vehicle. In other words, the vehicle can either be connected to the energy supply point or to a second vehicle via the charging connection. The vehicle can be connected via the charging connection to the energy supply point and to the second vehicle at different times or at different times.

The control system of the vehicle can be set up to communicate with the additional vehicle via the charging connection when the vehicle is connected to the additional vehicle via the charging connection. In particular, signals or data can be transmitted from the vehicle to the additional or second vehicle when the vehicle is connected to the additional vehicle via the charging connection. Alternatively or additionally, the vehicle's control system may receive signals or data from the other vehicle via the charging port when the vehicle is connected to the other vehicle. The charging connection can therefore provide a communication path between the vehicle and the other vehicle. This eliminates the need for an additional communication path.

The vehicle's control system may include various components. For example, the control system comprises at least one charging control unit (“charging ECU”) and at least one vehicle control unit (“vehicle ECU”). A charging control unit can be assigned to each charging connection. The vehicle may include more than one charge control unit, e.g., at least two or at least three charge control units. Alternatively, the vehicle can (precisely) include a charging control unit, in particular if the vehicle includes more than one charging connection.

The control system of the vehicle can be set up to recognize whether the vehicle is connected to the energy supply point or to the other vehicle via the charging connection. The vehicle's control system can be set up to perform different functions based on the detection of whether the vehicle is connected to the energy supply point or to the other vehicle via the charging connection. For example, the control system can be set up to control the charging of the vehicle's battery when it is detected that the charging connection is connected to the energy supply point. The control system can be set up to control the additional vehicle, in particular by sending data or signals to the additional vehicle, and/or to supply the additional vehicle with electrical energy from the vehicle's battery if it is detected that the charging connection with the another vehicle is connected. Controlling the charging of the battery, controlling the additional vehicle and/or supplying the additional vehicle with electrical energy preferably takes place via the charging connection.

The charging port can be a standardized charging port. The charging connection is preferably a (standardized) charging connection for a combined charging system. The charging connection is particularly preferably a (standardized) charging connection for direct current and alternating current charging.

The charging port can be a CCS charging port. CCS means "combined charging system". The charging port may conform to a battery electric vehicle (BEV) charging standard. In particular, the charging port conforms to the IEC 62196 standard.

For example, based on the resistance of the Proximity Pilot (PP), the vehicle's control system can detect whether the vehicle is connected to the power supply point via the charging port or to another vehicle.

The vehicle can communicate with another or second vehicle via the charging connection via high-level communication. A VAS channel can be used for communication, with VAS standing for "value added service".

The vehicle can communicate with another vehicle via the charging connection via a physical, in particular wired, layer, e.g. CAN or PLC.

Alternatively, the vehicle can communicate wirelessly with another vehicle. This is provided in particular in an ACD charging system. ACD stands for automated connection device. For this purpose, there can be a wireless connection, for example via WLAN, between the vehicle and the other vehicle.

The additional or second vehicle can include a converter, in particular a DC/DC converter. The converter can ensure that the additional vehicle is supplied with a defined voltage, e.g. 24 V.

A vehicle assembly is disclosed. The vehicle combination comprises at least one first vehicle and at least one second vehicle. The first vehicle includes at least one battery and at least one charging port. The second vehicle includes at least one charging port. The first vehicle is connected to the second vehicle via the charge port of the first vehicle and the charge port of the second vehicle.

The first vehicle may include one or more features of a vehicle disclosed herein. The second vehicle may include one or more features of a vehicle disclosed herein.

The first vehicle has a charge port and the second vehicle has a charge port. By connecting the first vehicle to the second vehicle via the charging connections of the vehicles, additional connections for connecting the vehicles can be dispensed with.

The charging port of the first vehicle can be connectable to an energy supply point in order to supply the first vehicle and/or the second vehicle with electrical energy when the first vehicle is not connected to the second vehicle via the charging port of the first vehicle and the charging port of the second vehicle is. Alternatively or additionally, the charging connection of the second vehicle can be connected to an energy supply point in order to supply the first vehicle and/or the second vehicle with electrical energy if the first vehicle is not connected to the second vehicle via the charging connection of the first vehicle and the charging connection of the second vehicle is connected.

The charging connections of the first and second vehicle can therefore fulfill a double function. On the one hand, the charging connections can be connected to an energy supply point in order to supply the respective vehicle with electrical energy, in particular to charge a battery. On the other hand, the vehicles can be connected via the charging connections in order to enable an exchange of electrical energy between the vehicles and/or communication between the vehicles.

The first vehicle may include another charge port. The further charging connection can be connected to an energy supply point in order to supply the first vehicle and/or the second vehicle with electrical energy when the first vehicle is connected to the second vehicle via the charging connection of the first vehicle and the charging connection of the second vehicle.

Alternatively or additionally, the second vehicle can include a further charging connection. The additional charging connection can be connected to an energy supply point in order to supply the first vehicle and/or the second vehicle with electrical energy when the first vehicle is connected to the second vehicle via the charging connection of the first vehicle and the Charging port of the second vehicle is connected.

If the first and second vehicles are connected to one another via their charging connections, at least one of the vehicles can be connected to the energy supply point via an additional charging connection of the first or second vehicle. As a result, the first and second vehicle can be supplied with electrical energy, although only one of the vehicles is connected to the energy supply point and receives electrical energy (directly) from it.

The electrical energy, which is received at the further charging connection from the energy supply point, can be used to charge a battery in the first and/or second vehicle. The electrical energy can also be used to supply one or more components in the first and/or second vehicle, in particular without charging a battery of the first and/or second vehicle. The components include, for example, an air conditioning system.

The electrical energy, which is received from the energy supply point at the further charging connection, can alternatively or additionally be used to make the first and/or second vehicle ready for operation. For example, the electrical energy can be used to fill a gas tank in the first and/or second vehicle or to increase the pressure therein.

A control system can be assigned to the further charging connection. The control system can be set up to control charging of the battery of the first vehicle and/or charging of a battery of the second vehicle. The control system is preferably provided in the vehicle in which the further charging connection is provided. Likewise, an additional or separate control system can be assigned to the further charging connection. The control system of the first vehicle or the control system of the second vehicle is preferably assigned to the further charging connection.

In particular, the further control system is set up to control charging of the battery of the first vehicle and/or charging of a battery of the second vehicle when the further charging connection is connected to the energy supply point.

The first vehicle may include at least one control system. The control system may be configured to communicate with the second vehicle via the charge port of the first vehicle and the charge port of the second vehicle.

Alternatively or additionally, the control system of the first vehicle can be set up to control a supply of electrical energy to the second vehicle from the battery of the first vehicle.

A method for charging a battery of a first vehicle is disclosed. The method comprises the steps: receiving electrical energy at a first charging connection of a second vehicle, starting from an energy supply point; forwarding the electrical energy from the first charging port of the second vehicle to a second charging port of the second vehicle; transferring the electrical energy from the second vehicle to the second vehicle via a connection between the second charge port of the second vehicle and a charge port of the first vehicle; and charging the battery of the first vehicle with the electrical energy.

The first vehicle may include one or more features of a vehicle disclosed herein. The second vehicle may include one or more features of a vehicle disclosed herein.

By connecting the first and second vehicles via the charging connections, a battery of a vehicle can be charged when the vehicle is not directly connected to the energy supply point. This is advantageous, for example, if it is difficult or impossible to position the vehicle with the battery close to the energy supply point.

The second vehicle's second charge port may be configured to be connected to the power source to receive electrical power from the power source when the second vehicle's second charge port and the first vehicle's charge port are not connected. Alternatively or additionally, the charging port of the first vehicle can be set up to be connected to the energy supply source in order to receive electrical energy from the energy supply source when the connection between the second charging port of the second vehicle and the charging port of the first vehicle does not exist.

When the vehicles are connected to each other via the charging ports, electrical energy can be transmitted via the charging ports. If the vehicles are not connected to one another via the charging connections, electrical energy can be transmitted to the respective vehicle via each of the charging connections.

The first and/or the second vehicle may include at least two charging ports.

The second vehicle may include a battery. The method may additionally include charging the battery of the second vehicle with the electrical energy.

If the first vehicle includes a battery and the second vehicle includes a battery, both the battery of the first vehicle and the battery of the second vehicle can be charged if only one of the vehicles is connected to the energy supply point and receives electrical energy from there.

Disclosed is a use of a charging port of a first vehicle to connect the first vehicle to a second vehicle so that electrical energy can be exchanged between the first vehicle and the second vehicle via the connection and/or so that there is communication between the first vehicle and the second vehicle can be carried out via the connection.

The second vehicle may include a charge port. The charging port of the first vehicle can be connected to the charging port of the second vehicle. The connection between the charging connections can be made, for example, by a cable or a line.

The charging port can be set up to receive electrical energy from an energy supply point when the first vehicle and the second vehicle are not connected via the charging port.

A vehicle is revealed. The vehicle includes at least a first charge port and at least a second charge port. The vehicle can be connected to an energy supply point via the first charging connection in order to receive electrical energy via the first charging connection. The vehicle can be connected to another vehicle via the second charging connection in order to transmit the electrical energy to the further vehicle via the second charging connection. The vehicle includes at least one control system. The control system is set up to control receiving the electrical energy via the first charging connection. The control system is set up to control the forwarding of the electrical energy via the second charging connection.

The vehicle may include one or more features of a vehicle disclosed herein.

In particular, the vehicle is a trailer. The vehicle cannot include a high-voltage battery. The vehicle may not include a drive. The vehicle may not include steering.

The vehicle can preferably be mechanically coupled to one or the other vehicle in order to be pulled or moved by the other vehicle.

character list

• 1 ein Fahrzeug 100;
• 2 einen Fahrzeugverbund 1000;
• 3 einen Fahrzeugverbund 1000; und
• 4 einen Fahrzeugverbund 2000.

The disclosure and further embodiments and advantages of the disclosure are explained in more detail below with reference to figures, with the figures merely describing exemplary embodiments of the disclosure. Identical components in the figures are provided with the same reference symbols. In the figures shows:

• 1 a vehicle 100;
• 2 a vehicle assembly 1000;
• 3 a vehicle assembly 1000; and
• 4 a vehicle network 2000.

Detailed description

1 shows a vehicle 100 in a schematic view. The vehicle 100 can be a commercial vehicle, in particular a bus.

The vehicle 100 includes a battery 140. Additionally, the vehicle 100 may include an electric motor (not shown). The battery 140 stores electrical energy that can be supplied to the electric motor of the vehicle 100 to propel the vehicle 100 .

At least one charging port 110 is arranged on the vehicle 100 . The charging connector 110 can be accessible from the outside. The charging connection 110 can be designed to accommodate a plug. A user can insert the plug into the charging port 110 to connect the vehicle 100 to a power supply point 500 . In particular, the charging port 110 can be connected to an energy supply point 500 .

The energy supply point 500 is a charging station, for example. The energy supply point 500 can provide electrical energy (electricity). The energy supply point 500 can have a line or a cable, at the end of which a plug is arranged. The plug can be inserted into the charging port 110 to connect the power supply point 500 to the charging port 110 . A connection 190b between the charging port 110 and the power supply point 500 is in 1 shown schematically. Electrical energy can be supplied to vehicle 100 from energy supply point 500 via connection 190b. This allows the battery 140 of the vehicle 100 to be charged, for example. The electrical energy from the energy supply point 500 can alternatively or additionally be used to supply components in the vehicle 100 . For example, the electrical energy from the power supply point 500 can be used to fill or increase the pressure in a gas tank of the vehicle 100 or the electrical energy can be used to operate an air conditioning system of the vehicle 100 . When the vehicle 100 is connected to the power supply point 500 via the charging port 110, the battery 140 of the vehicle 100 may or may not be charged.

The vehicle 100 also includes a control system 121. The control system 121 can include various components and is only indicated in the figures. The control system 121 may include at least one vehicle control unit 130 . The vehicle control unit 130 may be configured to control vehicle 100 components, such as the vehicle 100 engine, vehicle 100 sensors, the vehicle 100 braking system, etc. The control system 121 may include at least one charging control unit 120 . The charging control unit 120 can be set up to control the supply of electrical energy to components in the vehicle 100 . For example, the charging control unit 120 can control the charging of the battery 140 when the charging port 110 is connected to the energy supply point 500 . Likewise, charging control unit 120 can exchange electrical energy between vehicle 100 and another vehicle 200 (see Fig. 2 ) control when the vehicle 100 is connected to the other vehicle 200.

Components of the vehicle 100, in particular components of the control system 121, can be connected to one another via a vehicle network 180.

The vehicle 100 may include a communication unit 150 . The communication unit 150 can be a wireless communication unit that is set up to communicate via a wireless network, for example via a cellular network or WLAN.

2 shows a vehicle group 1000. The vehicle group 1000 comprises at least a first vehicle 100 and a second vehicle 200. The first vehicle 100 can with a view to 1 vehicle described. Same elements of the first vehicle 100 of 2 and the vehicle 100 of 1 are not repeated. The vehicle network 1000 can include more than two vehicles.

The second vehicle 200 may be a trailer. The second vehicle 200 may not have its own drive or may have its own drive. The second vehicle 200 may or may not include a battery. In the example of 2 the second vehicle 200 includes an electric motor 270 and a battery 240. The electric motor 270 may be powered by electric power from the battery 240. FIG. The second vehicle 200 may include an inverter (inverter) 260 . The inverter 260 can be set up to monitor and/or to control or regulate the electric motor 270 . The inverter 260 can be set up to convert a DC voltage from the battery 240 into an AC voltage for the electric motor 270 .

The second vehicle 200 may include a first charge port 210 . Additionally, the second vehicle 200 may include a second charging port 215 . The first charge port 210 and the second charge port 215 may be located at different locations of the second vehicle 200 . For example, the first charging port 210 is arranged in a front area of the second vehicle 200 and the second charging port 215 is arranged in a rear area of the second vehicle 200 . However, the first and second charging terminals 210, 215 may be arranged at any positions.

A control system 221 may be provided in the second vehicle 200 . The control system 221 may include various components. For example, the control system 221 includes a vehicle control unit 230. The control system 221 may include at least one charging control unit 220. In the example of 2 the control system 221 includes a first charging control unit 220 and a second charging control unit 225. The first charging control unit 220 may be associated with the first charging port 210. The second charge control unit 225 may be associated with the second charge port 215 . The vehicle control unit 230 can have the same configuration as the vehicle control unit 130 of the first vehicle 100. The first and second charging control unit 220, 225 can each have the same configuration as the charging control unit 120 of the first vehicle 100.

In 2 a vehicle network 280 is shown schematically. Through the vehicle network 280 components of the second vehicle 200, esp particular components of the control system 221 may be interconnected.

In the vehicle network 1000 of 2 the first vehicle 100 and the second vehicle 200 are mechanically coupled. The mechanical coupling can be implemented by a trailer device. The second vehicle 200 can have a drawbar to which the first vehicle 100 is connected.

A connection 190a is formed between the first vehicle 100 and the second vehicle 200 . The connection 190a may be formed across the charge port 110 and the first charge port 210 of the second vehicle 200 . For example, a cable or line with two plugs can be provided. One of the plugs may be plugged into the charge port 110 of the first vehicle 100 and the other plug may be plugged into the first charge port 210 of the second vehicle 200 .

Electrical energy and/or data or signals can be exchanged between the first vehicle 100 and the second vehicle 200 via the connection 190a between the first vehicle 100 and the second vehicle 200 .

The second charging connection 215 of the second vehicle 200 can be connected to the energy supply point 500 . The connection 290 between the second charging connection 215 of the second vehicle 200 and the energy supply point 500 can be provided via a cable or a line with a plug. The plug can be plugged into the second charging port 215 .

Second vehicle 200 can be supplied with electrical energy from energy supply point 500 via connection 290 . The electrical energy can be used in the second vehicle to charge the battery 240 of the second vehicle 200 and/or to operate components of the second vehicle 200 (e.g. air conditioning). At least part of the electrical energy received from the second vehicle 200 can be forwarded to the first vehicle 100 . For this purpose, the electrical energy can be transmitted via the connection 190a via the charging connection 110 of the first vehicle 100 and the first charging connection 210 of the second vehicle 200 . In the second vehicle 200, the electrical energy can be used to charge the battery 140 of the first vehicle 100 and/or to operate components of the first vehicle 100 (e.g. air conditioning).

Likewise, the electrical energy can neither be stored nor consumed by the second vehicle 200 . In this case, the electrical energy can be (entirely) forwarded to the first vehicle 100 .

The first vehicle 100 can include a communication unit 150 , in particular a wireless communication unit 150 . The second vehicle 200 can include a communication unit 250 , in particular a wireless communication unit 150 . The first vehicle 100 and the second vehicle 200 can communicate via the communication units 150, 250, in particular via a WLAN or a mobile radio network.

3 shows the vehicle network 1000 of FIG 2 , wherein no vehicle of the vehicle network 1000 is connected to the energy supply point 500 . In the example of 3 the vehicle network 1000 is operated, for example the vehicle network 1000 takes part in road traffic.

Like facing 2 described, the first vehicle 100 is connected to the second vehicle 200 via a connection 190a. The connection 190a is provided via the charging port 110 of the first vehicle 100 and the first charging port 210 of the second vehicle 200 .

Electrical energy can be exchanged between first vehicle 100 and second vehicle 200 of vehicle combination 1000 via connection 190a. For example, electrical energy may be transferred from the battery 140 of the first vehicle 100 to the second vehicle 200 to power components in the second vehicle 200 . Likewise, electrical energy may be transferred from the battery 240 of the second vehicle 200 to the first vehicle 100 to power components in the first vehicle 100 .

Alternatively or additionally, data or signals can be exchanged between first vehicle 100 and second vehicle 200 of vehicle combination 1000 via connection 190a. For example, the first vehicle 100 may send control signals for the second vehicle 200 to the second vehicle 200 via the link 190a.

4 shows a group of vehicles 2000. The group of vehicles 2000 comprises a first vehicle 300 and a second vehicle 400. In the example of FIG 4 the first vehicle 300 may be a truck. The second vehicle 400 can be a trailer or trailer.

The first vehicle 300 of the vehicle network 2000 can include the same components sen like the first vehicle 100 of the vehicle combination 1000.

The first vehicle 300 can include a charging connection 310 to which both an energy supply point 500 and the second vehicle 400 can be connected. At one point in time, either the power supply point 500 or the second vehicle 400 is connected. The first vehicle 300 may include a control system 321 . The control system 321 may include a charge controller 320 and a vehicle controller 330 . Components of the first vehicle 300 , in particular the control system 321 , can be connected via a vehicle network 380 . The first vehicle 300 may include a battery 340 . The battery 340 can store electrical energy, for example in order to supply electrical energy to an electric motor of the first vehicle 300 .

The second vehicle 400 of the vehicle network 2000 can comprise the same components as the second vehicle 200 of the vehicle network 1000.

The second vehicle 400 may include a battery 440 . Alternatively, the second vehicle 400 may not include a battery. In the example of 4 For example, the second vehicle 400 can include an electric motor 470 and a battery 440 as well as an inverter 460 for the electric motor 470 . The second vehicle 400 may include a first charge port 410 . Additionally, the second vehicle 400 may include a second charging port 415 . A control system 421 may be provided in the second vehicle 400 . The control system 421 may include a first charge controller 420 and a second charge controller 425 . The control system 421 may include a vehicle control unit 430 . The second vehicle 400 may include a vehicle network 480 through which components of the second vehicle 400 may be interconnected.

A connection 390 can be established between the first vehicle 300 and the second vehicle 400 via the charging connection 310 of the first vehicle 300 and the first charging connection 410 of the second vehicle 400 . Electrical energy and/or data or signals can be exchanged between first and second vehicles 300, 400 via connection 390.

A wireless connection can be established between the first vehicle 300 and the second vehicle 400, e.g. via WLAN or a mobile network. For this purpose, the first vehicle 300 can include a communication unit 350 and the second vehicle 400 can include a communication unit 450 .

Reference List

100, 200, 300, 400

vehicle

110, 210, 215, 310, 410, 415

charging port

120, 220, 225, 320, 420, 425

charge control unit

130, 230, 330, 430

vehicle control unit

121, 221, 321, 421

control system

140, 240, 340, 440

battery

150, 250, 350, 450

communication unit

260, 460

inverter

270,470

engine

180, 280, 380, 480

vehicle network

190a, 190b, 290, 390

Connection

500

energy supply point

Claims (15)

Vehicle (100, 300), in particular a commercial vehicle, comprising: - at least one battery (140, 340); - at least one charging connection (110, 310), wherein the vehicle (100, 300) can be connected to an energy supply point (500) via the charging connection (110, 310) in order to charge the battery (140, 340), and wherein the vehicle (100, 300) can be connected to a further vehicle (200, 400) via the charging connection (110, 310) in order to supply the further vehicle (200, 400) with electrical energy from the battery (140, 340); and - At least one control system (121, 321), wherein the control system (121, 321) is set up to control the charging of the battery (140, 340) when the vehicle (100, 300) via the charging connection (110, 310) with connected to the energy supply point (500), and the control system (121, 321) is set up to control the supply of the additional vehicle (200, 400) with electrical energy from the battery (140, 340) when the vehicle (100, 300 ) is connected to the other vehicle (200, 400) via the charging connection (110, 310). Vehicle (100, 300) after claim 1 , wherein the control system (121, 321) is set up to communicate with the further vehicle (200, 400) via the charging connection (110, 310) when the vehicle (100, 300) with the further vehicle (200, 400) via the charging port (110, 310). Vehicle (100, 300) according to one of the preceding claims, wherein the control system (121, 321) is set up to recognize whether the vehicle (100, 300) via the charging connection (110, 310) with the energy supply point (500) or with is connected to the further vehicle (200, 400). Vehicle (100, 300) according to one of the preceding claims, wherein the charging connection (110, 310) is a standardized charging connection (110, 310), preferably for a combined charging system, particularly preferably for direct current and alternating current charging. Vehicle combination (1000, 2000) with at least one first vehicle (100, 300) and at least one second vehicle (200, 400), wherein: - The first vehicle (100, 300) comprises at least one battery (140, 340) and at least one charging connection (110, 310); - the second vehicle (200, 400) comprises at least one charging connection (210, 410); - the first vehicle (100, 300) with the second vehicle (200, 400) via the charging connection (110, 310) of the first vehicle (100, 300) and the charging connection (210, 410) of the second vehicle (200, 400) connected is. Vehicle group (1000, 2000) according to claim 5 , wherein the charging connection (110, 310) of the first vehicle (100, 300) and/or the charging connection (210, 410) of the second vehicle (200, 400) can be connected to an energy supply point (500) in order to charge the first vehicle (100 , 300) and/or the second vehicle (200, 400) with electrical energy when the first vehicle (100, 300) is not connected to the second vehicle (200, 400) via the charging connection (110, 310) of the first vehicle (100, 300) and the charging port (210, 410) of the second vehicle (200, 400). Vehicle group (1000, 2000) according to claim 5 or 6 , wherein the first vehicle (100, 300) and/or the second vehicle (200, 400) comprises a further charging connection (215, 415), wherein the further charging connection (215, 415) can be connected to an energy supply point (500) in order to to supply the first vehicle (100, 300) and/or the second vehicle (200, 400) with electrical energy when the first vehicle (100, 300) communicates with the second vehicle (200, 400) via the charging connection (110, 310 ) of the first vehicle (100, 300) and the charging port (210, 410) of the second vehicle (200, 400). Vehicle group (1000, 2000) according to claim 7 , wherein the further charging connection (215, 415) is assigned a control system (121, 221, 321, 421) and the control system (121, 221, 321, 421) is set up to charge the battery (130, 410) of the first vehicle (100, 300) and/or to control charging of a battery (240, 440) of the second vehicle (200, 400). Vehicle network (1000, 2000) according to one of Claims 5 until 8th , wherein the first vehicle (100, 300) comprises at least one control system (121, 321), wherein the control system (121, 321) is set up via the charging port (110, 310) of the first vehicle (100, 300) and the charging port (210, 310) of the second vehicle (200, 400) to communicate with the second vehicle (200, 400). Vehicle network (1000, 2000) according to one of Claims 5 until 8th , wherein the first vehicle (100, 300) comprises a control system (121, 321), wherein the control system (121, 321) is set up to supply the second vehicle (200, 400) with electrical energy from the battery (140, 340 ) of the first vehicle (100, 300). Method for charging a battery (140, 240, 340, 440) of a first vehicle (100, 200, 300, 400), the method with the steps: - Receiving electrical energy at a first charging connection (215, 415) of a second vehicle (100, 200, 300, 400) starting from an energy supply point (500); - Forwarding the electrical energy from the first charging port (215, 415) of the second vehicle (100, 200, 300, 400) to a second charging port (210, 410) of the second vehicle (100, 200, 300, 400); - transferring the electrical energy from the second vehicle (100, 200, 300, 400) to the second vehicle (100, 200, 300, 400) via a connection (190a, 390) between the second charging port (210, 410) of the second Vehicle (100, 200, 300, 400) and a charging port (110, 310) of the first vehicle (100, 200, 300, 400); and - Charging the battery (140, 240, 340, 440) of the first vehicle (100, 200, 300, 400) with the electrical energy. procedure after claim 11 , wherein the second charging connection (210, 410) of the second vehicle (100, 200, 300, 400) and/or the charging connection (110, 310) of the first vehicle (100, 200, 300, 400) is set up with the energy supply source (500) to be connected to receive electric power from the power supply source (500) when the connection (190a, 390) between the second charging port (210, 410) of the second vehicle (100, 200, 300, 400) and the charging connection (110, 310) of the first vehicle (100, 200, 300, 400) does not exist. procedure after claim 11 or 12 , wherein the second vehicle (100, 200, 300, 400) comprises a battery (140, 240, 340, 440) and the method comprises: - charging the battery (140, 240, 340, 440) of the second vehicle (100, 200, 300, 400) with the electrical energy. Using a charging port (110, 210, 215, 310, 410, 415) of a first vehicle to connect the first vehicle (100, 200, 300, 400) to a second vehicle (100, 200, 300, 400) so that electrical energy can be exchanged between the first vehicle (100, 200, 300, 400) and the second vehicle (100, 200, 300, 400) via the connection and/or so that communication between the first vehicle (100, 200, 300, 400 ) and the second vehicle (100, 200, 300) can be carried out via the connection. Vehicle (200, 400), in particular a trailer, comprising: - at least one first charging connection (215, 415) and at least one second charging connection (210, 410), wherein the vehicle (200, 400) can be connected to an energy supply point (500) via the first charging connection (215, 415) in order to charge electrical energy via the first charging connection (215, 415), and wherein the vehicle (200, 400) can be connected to a further vehicle (100, 300) via the second charging connection (210, 410) in order to receive the electrical energy via the second charging connection (210, 410) to the further vehicle (100, 300); and - at least one control system (321, 421), wherein the control system (121, 321) is set up to control the reception of the electrical energy via the first charging connection (215, 415), and the control system (121, 321) is set up that To control forwarding of the electrical energy via the second charging port (210, 410).

Images