Method for managing charging of battery of electric vehicle by another electric vehicle

Abstract

The invention relates to a method of charging a second electric vehicle (1000) by a first electric vehicle (1000), comprising the following steps: a first step E1) comprising coupling the second electric vehicle (1000) to the first electric vehicle (10) using a first connection device (100) of the first electric vehicle; a second step E2) comprising initiating a communication protocol between the second electric vehicle (1000) and the first electric vehicle (10), the second step E2) comprising determining the powered vehicle as the first electric vehicle (10) and determining the powered vehicle as the second electric vehicle (1000); a third step E3) comprising configuring the second electric vehicle (1000) and the first electric vehicle (10) in order to allow the transmission of electrical energy.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicles and more particularly to a method for managing charging of a battery of an electric vehicle by another electric vehicle. Background Art

[0002] Electric vehicles are increasingly common on our roads and are quite popular among drivers. However, battery recharging is an area that has hindered the development of electric vehicles and presents a strategic challenge for vehicle manufacturers. In fact, battery recharge time and the availability and location of infrastructure for recharging electric vehicles mean that electric vehicles are still not as easy to use as combustion engine vehicles, thus hindering the development of electric vehicles.

[0003] There are two main types of technology or infrastructure for recharging the batteries of electric vehicles. The first involves home charging, which connects the electric vehicle to a single-phase household network (220 volt household socket). Home charging has the advantage of being universal, but requires relatively long charging times.

[0004] The second involves recharging via a fast-charging point set up in a supermarket car park, for example. This type of recharging requires a relatively high investment to be deployed, but has the advantage of allowing the battery of the electric vehicle to be charged much more quickly.

[0005] There are two main types of battery chargers for electric vehicles. The first is the battery charger in the electric vehicle, sometimes called an "on-board charger." This on-board charger is primarily used when connected to a home network and is designed to convert the voltage of the network (AC voltage) to a voltage suitable for the vehicle battery (DC voltage).

[0006] The on-board charger has the disadvantage of being bulky and also includes a large number of electronic conversion and / or voltage matching stages, which correspond to the conversion of the AC voltage into the DC voltage required for battery charging.

[0007] The second type of charger is a battery charger external to the electric vehicle, which is sometimes also referred to as an “off-board charger.” External chargers have the advantage of being mounted at a charging point rather than in the electric vehicle and therefore do not take up space in the vehicle.

[0008] However, onboard chargers, like external chargers, share the disadvantage of requiring an available power grid close to the electric vehicle. In fact, for onboard chargers, a household outlet connected to the power grid must be near the electric vehicle, and for external chargers, a fast-charging terminal must be nearby. Therefore, both types of chargers require a stationary energy source near the electric vehicle to recharge the battery.

[0009] Furthermore, on-board chargers require a large number of power conversion stages in order to make the voltage of the grid compatible with the voltage of the battery, resulting in significant conversion losses and thus prolonging the charging time of the battery of the electric vehicle.

[0010] Furthermore, depending on the type of onboard charger of a vehicle requiring charging and the type of onboard charger of a vehicle providing charging, a signal indicating the charge to be transferred needs to be made compatible and also needs to be controlled.

[0011] The object of the present invention is to provide a method for recharging an electric vehicle with another electric vehicle, which method does not require the presence of a fixed source of electrical energy nearby and which provides maximum compatibility between the vehicles. In other words, the object of the present invention is to provide a method for recharging one vehicle with another vehicle with fewer compatibility issues. Summary of the Invention

[0012] The present invention relates to a method for charging a second electric vehicle by a first electric vehicle, the first electric vehicle comprising: a coupling device of the first electric vehicle, a first matching device of the first electric vehicle coupled to the coupling device of the first electric vehicle using a second connecting device of the first electric vehicle, a second electric energy storage device of the first electric vehicle adapted to store electric energy, a conversion and control device of the first electric vehicle coupled to the coupling device of the first electric vehicle using a third connecting device of the first electric vehicle, a power conditioning device of the first electric vehicle arranged between the first matching device of the first electric vehicle and a rectifier device of the first electric vehicle coupled to the first matching device of the first electric vehicle using a fourth connecting device of the first electric vehicle, the power conditioning device of the first electric vehicle further coupled to the conversion and control device of the first electric vehicle using a fourth connecting device of the first electric vehicle and coupled to the rectifier device of the first electric vehicle using the fourth connecting device of the first electric vehicle, the second electric energy storage device of the first electric vehicle coupled to the rectifier device of the first electric vehicle using a fifth connecting device of the first electric vehicle, and the second electric energy storage device of the first electric vehicle coupled to the rectifier device of the first electric vehicle using the fifth connecting device of the first electric vehicle. The method comprises the following steps: a first matching device of the second electric vehicle connected to the coupling device of the second electric vehicle using the second connecting device of the second electric vehicle, a second electric energy storage device of the second electric vehicle adapted to store electric energy, a conversion and control device of the second electric vehicle connected to the coupling device of the second electric vehicle using the third connecting device of the second electric vehicle, a power conditioning device of the first electric vehicle arranged between the first matching device of the second electric vehicle and the rectifier device of the second electric vehicle connected to the first matching device of the second electric vehicle using the fourth connecting device of the second electric vehicle, the power conditioning device of the second electric vehicle further connected to the conversion and control device of the second electric vehicle using the fourth connecting device of the second electric vehicle and connected to the rectifier device of the second electric vehicle using the fourth connecting device of the second electric vehicle, the second electric energy storage device of the second electric vehicle connected to the rectifier device of the second electric vehicle using the fifth connecting device of the second electric vehicle, the second electric energy storage device of the second electric vehicle connected to the conversion and control device of the second electric vehicle using the fifth connecting device of the second electric vehicle, the method comprising the following steps:

[0013] A first step E1) comprises coupling a second electric vehicle to said first electric vehicle using first connection means of said first electric vehicle;

[0014] A second step E2) comprising initiating a communication protocol between the second electric vehicle and the first electric vehicle, said second step E2) comprising determining the energy supplying vehicle as the first electric vehicle and the energy receiving vehicle as the second electric vehicle;

[0015] a third step E3) comprising configuring the second electric vehicle and the first electric vehicle so as to allow electrical energy to be transferred from the second electrical energy storage device of the first electric vehicle to the second electrical energy storage device of the second electric vehicle;

[0016] A fourth step E4) consists of preparing the transmission of electrical energy;

[0017] A fifth step E5) consists in transferring electrical energy originating from the second electrical energy storage device of the first electric vehicle to the second electrical energy storage device of the second electric vehicle;

[0018] A sixth step E6) consists in stopping the transmission of electrical energy from the second electrical energy storage means of the first electric vehicle to the second electrical energy storage means of the second electric vehicle.

[0019] For example, during a third step E3), the connection and control device of the first electric vehicle is controlled so that the coupling device of the first electric vehicle is electrically coupled to the fourth quater coupling device of the first electric vehicle using the third connection device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so that the coupling device of the second electric vehicle is electrically coupled to the fourth quater coupling device of the second electric vehicle using the third connection device of the second electric vehicle.

[0020] In a variant, during a third step E3), the connection and control device of the first electric vehicle is controlled so as to electrically connect the coupling device of the first electric vehicle to the fourth quater coupling device of the first electric vehicle using the third connection device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device of the second electric vehicle to the coupling device of the second electric vehicle using the fifth connection device of the second electric vehicle.

[0021] For example, during a third step E3), the connection and control device of the first electric vehicle is controlled so as to electrically connect the second energy storage device of the first electric vehicle to the connection device of the first electric vehicle using the fifth connection device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so as to electrically connect the connection device of the second electric vehicle to the fourth quater connection device of the second electric vehicle using the third connection device of the second electric vehicle.

[0022] As a variant, during a third step E3), the connection and control device of the first electric vehicle is controlled so as to electrically connect the second energy storage device of the first electric vehicle to the connection device of the first electric vehicle using the fifth connection device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so as to electrically connect the second energy storage device of the second electric vehicle to the connection device of the second electric vehicle by passing through a converter of the second electric vehicle.

[0023] As a variant, during a third step E3), the connection and control device of the first electric vehicle is controlled so as to electrically connect the coupling device of the first electric vehicle to the third connection device of the first electric vehicle, and the second energy storage device of the first electric vehicle is connected to the converter of the first electric vehicle arranged between the conversion and control device of the first electric vehicle and the second energy storage device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so as to electrically connect the coupling device of the second electric vehicle to the fourth quater connection device of the second electric vehicle using the third connection device of the second electric vehicle.

[0024] In addition, according to one embodiment, the first vehicle also includes a converter of the first electric vehicle, which is arranged between the conversion and control device of the first electric vehicle and the second energy storage device of the first electric vehicle, wherein, during the third step E3), the connection and control device of the first electric vehicle is controlled so as to electrically connect the connection device of the first electric vehicle to the third connection device of the first electric vehicle, and the second energy storage device of the first electric vehicle is connected to the converter of the first electric vehicle arranged between the conversion and control device of the first electric vehicle and the second energy storage device of the first electric vehicle, and the connection and control device of the second electric vehicle is controlled so as to electrically connect the second energy storage device of the second electric vehicle to the connection device of the second electric vehicle using the fifth connection device of the second electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features and advantages of the present invention will become more apparent from reading the following description. This description is purely illustrative and must be read with reference to the accompanying drawings, in which:

[0026] Figure 1 is a schematic structural diagram of an electric vehicle according to the present invention;

[0027] Figure 2 is a schematic structural diagram of a variant of the electric vehicle according to the present invention;

[0028] Figure 3 is a schematic structural diagram of a variant of the electric vehicle according to the present invention;

[0029] Figure 4is a schematic structural diagram of a variant of the electric vehicle according to the present invention;

[0030] Figure 5 A diagram of the method according to the invention is shown. DETAILED DESCRIPTION

[0031] Figure 1 A first electric vehicle 10 is shown along with its primary functions, which are well known to those skilled in the art.

[0032] The electric vehicle 10 according to the invention generally and in a non-limiting manner comprises a first electric vehicle coupling device 20 suitable for coupling the electric vehicle 10 to an external source of electric energy 200 using a first electric vehicle first connection device 100 .

[0033] For example, the external electrical energy source 200 may be a conventional electrical outlet in a home connected to a household electrical grid that provides 220 volts AC.

[0034] As a variant, in order to avoid long-term damage to traditional household power sockets, the external electrical energy source 200 can be a reinforced socket that is always connected to the household power grid. This reinforced socket is suitable for stronger current flow, thereby allowing to reduce recharging time.

[0035] As a variant, the external electrical energy source 200 can be a dedicated wall charging point permanently located at home. Advantageously, this wall charging point is specifically designed to supply power to the vehicle via the home network, but is adapted to deliver a greater electrical power in order to further reduce the recharging time.

[0036] Finally, in another example use case, external electrical energy source 200 could be a fast-charging point located in a supermarket parking lot. Advantageously, this type of fast-charging point allows for high-power flow using direct current, unlike the aforementioned variants, which only operate with alternating current. Consequently, it is possible to reduce recharging time by a factor of 10 or 20.

[0037] The first connection device 100 of the first electric vehicle connects the coupling device 20 of the first electric vehicle to an external electric energy source 200. In the case where the external electric energy source 200 is a conventional household power outlet, the first connection device 100 is a universal cable, such as the cable provided with the electric vehicle 10, and is suitable for connecting the electric vehicle 10 to the household power outlet. This type of cable (and outlet) is also called a Mode 2 cable.

[0038] In the case where the external electrical energy source 200 is a dedicated wall charging point, the first connection means 100 of the first electric vehicle may be a Mode 3 type cable. This type of cable has a connector and cable diameter that allows the electric vehicle 10 to be charged faster.

[0039] In case the external electric energy source 200 is a public fast charging point, the first connection means 100 of the first electric vehicle is for example a dedicated Mode 4 type cable; in this case, said cable is the cable of the fast charging terminal and not the cable of the electric vehicle.

[0040] The electric vehicle 10 includes a first matching device 30 of the first electric vehicle connected to the first electric vehicle's coupling device 20 using the first electric vehicle's second connecting device 101. The first matching device 30 of the first electric vehicle is also connected to the first electric vehicle's rectifying device 50 using the first electric vehicle's fourth connecting device 103.

[0041] The electric vehicle 10 also includes a first electric vehicle first energy storage device 40 and a second electric vehicle second energy storage device 60. For example, the first electric vehicle first energy storage device 40 is a low-voltage battery and the second electric vehicle second energy storage device 60 is a high-voltage battery. Solutions for matching the voltage and power levels between the two batteries to recharge the low-voltage battery via the high-voltage battery are known to those skilled in the art.

[0042] The electric vehicle 10 further comprises a first electric vehicle switching and control device 70 , which is coupled to the first electric vehicle coupling device 20 using a first electric vehicle third coupling device 102 .

[0043] The conversion and control device 70 of the first electric vehicle is also connected to the second electrical energy storage device 60 of the first electric vehicle using the fifth connection device 104 of the first electric vehicle, and the conversion and control device 70 of the first electric vehicle is also connected to the transmission and propulsion device 80 of the first electric vehicle.

[0044] like Figure 1 As shown, the conversion and control device 70 of the first electric vehicle is connected in parallel with the first matching device 30 of the first electric vehicle and the rectifier device 50 of the first electric vehicle. In other words, the conversion and control device 70 of the first electric vehicle is suitable for directly connecting the second electric energy storage device 60 of the first electric vehicle to the coupling device 20 of the first electric vehicle using the fifth connecting device 104 of the first electric vehicle, or connecting the second electric energy storage device 60 of the first electric vehicle to the coupling device 20 of the first electric vehicle via the first matching device 30 of the first electric vehicle and the rectifier device 50 of the first electric vehicle.

[0045] The first electrical energy storage device 40 of the first electric vehicle is, for example, a battery having a usable voltage value of approximately 12 volts and is suitable for providing the onboard electrical network voltage for the electric vehicle 10 .

[0046] For example, the second electrical energy storage device 60 of the first electric vehicle is a high-voltage battery. In one embodiment, the battery may be a 400V or 800V battery. Battery technology does not have any impact on the present invention and will not be described in the remainder of this specification. The battery may be, for example, a lithium-ion battery, or a lithium metal polymer or lithium-ion battery.

[0047] For example, the first matching device 30 of the first electric vehicle is an AC / DC converter.

[0048] When the electric vehicle 10 is connected via the first connecting device 100 of the first electric vehicle using a mode 2 or mode 3 type cable, the first matching device 30 of the first electric vehicle and the rectifier device 50 of the first electric vehicle are suitable for converting the alternating current output from the electric energy source 200 into direct current suitable for recharging the second electric energy storage device 60 of the first electric vehicle.

[0049] In the case where the electric vehicle 10 is connected to the electric energy source 200 using a mode 2 or mode 3 type cable (i.e. using alternating current), the conversion and control means 70 of the first electric vehicle are adapted to manage the power supplied by the onboard charger in order to recharge the second electric energy storage means 60 of the first electric vehicle. They may comprise, for example, a power computer adapted to manage the power compatibility between the various modules of the electric vehicle 10.

[0050] In the first embodiment, the conversion and control device 70 of the first electric vehicle is suitable for short-circuiting the first matching device 30 of the first electric vehicle and the rectifier device 50 of the first electric vehicle to electrically connect the second energy storage device 60 of the first electric vehicle to the connecting device 20 of the first electric vehicle using the fifth connecting device 104 of the first electric vehicle.

[0051] For example, the conversion and control device 70 of the first electric vehicle includes a switch suitable for switching high electric power. For example, the switch can be controlled according to a strategy determined by a computer. Thus, according to the present invention, energy stored in the second energy storage device 60 of the first electric vehicle can be transferred to the coupling device 20 of the first electric vehicle, for example, to charge another electric vehicle that is compatible or suitable for receiving the energy.

[0052] In the second embodiment, as Figure 2As shown, the first electric vehicle 10 includes a first electric vehicle DC / DC converter 90, which is disposed between the first electric vehicle's conversion and control device 70 and the first electric vehicle's second energy storage device 60. The first electric vehicle's converter 90 is adapted, for example, to match the voltage level of the first electric vehicle's second energy storage device 60 and / or to electrically isolate the first electric vehicle's second energy storage device 60 from another electric vehicle to be coupled thereto. The first electric vehicle's DC / DC voltage converter 90 has a low level of conversion losses.

[0053] The connection means of the first electric vehicle may be a direct voltage bus, referred to as a “DC bus” by those skilled in the art.

[0054] In another alternative embodiment, Figure 3 As shown, the conversion and control device 70 of the first electric vehicle includes a power conditioning device 70_50 of the first electric vehicle, which is suitable for controlling the amount of current absorbed or delivered.

[0055] The internal structure of the power conditioning device 70_50 of the first electric vehicle is well known to those skilled in the art. For example, it includes at least one capacitor arranged in series with a resistor. A relay-type switch may also be installed in parallel with the resistor Rd. The power conditioning device 70_50 of the first electric vehicle is adapted to accept relatively high effective current values when charging the battery and to reduce or substantially filter any ripple in the rectified voltage output from the power factor correction circuit 30 of the first electric vehicle.

[0056] Therefore, the power conditioning device 70_50 of the first electric vehicle is suitable for filtering the ripples so that they are compatible with the input characteristics of the first electric vehicle's rectifier device 50. Cleverly, the internal structure of the power conditioning device 70_50 of the first electric vehicle is reversible.

[0057] In order to understand the present invention, Figure 3 As shown, the power regulating device 70_50 of the first electric vehicle is separated from the conversion and control device 70 of the first electric vehicle, but they can also be integrated into the conversion and control device 70 of the first electric vehicle.

[0058] Thus, for example, the power conditioning device 70_50 of the first electric vehicle is disposed between the first matching device 30 of the first electric vehicle and the rectifier device 50 of the first electric vehicle. They are coupled to the first matching device 30 of the first electric vehicle using the first electric vehicle's fourth bis connection device 103_bis. They are also coupled to the first electric vehicle's conversion and control device 70 using the first electric vehicle's fourth quater connection device 103_quater. In one embodiment, the first electric vehicle's fourth bis connection device 103_bis is directly coupled to the first electric vehicle's fourth ter connection device 103_ter. The power conditioning device 70_50 of the first electric vehicle is also coupled to the rectifier device 50 of the first electric vehicle using the first electric vehicle's fourth ter connection device 103_ter.

[0059] By means of the internal structure of the conversion and control device 70 of the first electric vehicle and the power conditioning device 70_50 of the first electric vehicle, the third connection device 102 of the first electric vehicle can be used to select and electrically connect the connection device 20. In addition, the fifth connection device 104 of the first electric vehicle can also be used on the fourth quater connection device 103_quater of the first electric vehicle to electrically connect the second energy storage device 60 of the first electric vehicle to the connection device 20 of the first electric vehicle.

[0060] For example, the conversion and control device 70 of the first electric vehicle includes a switch suitable for switching high electric power. For example, the switch can be controlled according to a strategy determined by a computer. Thus, according to the present invention, energy stored in the second energy storage device 60 of the first electric vehicle can be transferred to the coupling device 20 of the first electric vehicle, for example, to charge another electric vehicle that is compatible or suitable for receiving the energy.

[0061] In one embodiment, the present invention further proposes that the second electric vehicle 1000 has the same internal structure as the first electric vehicle 10 .

[0062] As shown in the figure ( Figure 4 ), the second electric vehicle 1000 also includes a second vehicle conversion and control device 7000, and a second vehicle power regulation device 7000_50, which is suitable for controlling the amount of current absorbed or delivered.

[0063] The internal structure of the second vehicle's power conditioning device 7000_50 is well known to those skilled in the art. For example, it includes at least one capacitor connected in series with a resistor. A relay-type switch may also be installed in parallel with resistor Rd. The second vehicle's power conditioning device 7000_50 is adapted to accept relatively high effective current values when charging the battery and to reduce or adequately filter any ripple in the rectified voltage output by the second vehicle's power factor correction circuit 3000.

[0064] Therefore, the power conditioning device 7000_50 of the second electric vehicle is adapted to filter the ripples so that they are compatible with the input characteristics of the second vehicle's rectifying device 5000. Cleverly, the internal structure of the power conditioning device 7000_50 of the second vehicle is reversible.

[0065] For the purpose of understanding the present invention, the power regulating device 7000_50 of the second vehicle is separated from the conversion and control device 7000 of the second vehicle, as shown in FIG. Figure 4 As shown, they can also be integrated into the switching and control device 7000 of the second vehicle.

[0066] Thus, for example, the power conditioning device 7000_50 of the second vehicle is disposed between the first matching device 3000 of the second vehicle and the rectification device 5000 of the second vehicle. They are connected to the first matching device 3000 of the second vehicle using the fourth bis connection device 10300_bis of the second vehicle. They are also connected to the conversion and control device 7000 of the second vehicle using the fourth quater connection device 10300_quater of the second vehicle. In one embodiment, the fourth bis connection device 10300_bis of the second vehicle is directly connected to the fourth ter connection device 10300_ter of the second vehicle. The power conditioning device 7000_50 of the second vehicle is also connected to the rectification device 500 of the second vehicle using the fourth ter connection device 10300_ter of the second vehicle.

[0067] By virtue of the internal structures of the second vehicle's conversion and control device 7000 and the second vehicle's power conditioning device 7000_50, the second vehicle's coupling device 2000 can be selected and electrically connected using the second vehicle's third connection device 10200. Furthermore, the second vehicle's fifth connection device 10400 can also be used on the second vehicle's fourth quater connection device 10300_quater to electrically connect the second vehicle's second electrical energy storage device 6000 to the second vehicle's coupling device 2000.

[0068] For example, the conversion and control device 7000 of the second vehicle includes a switch suitable for switching high electrical energy. For example, the switch can be controlled according to a strategy determined by a computer. Thus, according to the present invention, energy can be received to recharge the second electrical energy storage device 6000 of the second vehicle.

[0069] As mentioned in the above description, electric vehicles sometimes encounter situations where their available energy reserves are too low to reach, for example, their driver's home or a public charging point, thereby placing the user in a relatively difficult situation.

[0070] Therefore, if Figure 5 As shown, the present invention proposes a method for controlling and charging a second electric vehicle 1000 connected to a first electric vehicle 10 via a first connection device 100 of the first electric vehicle 10. Of course, the first connection device 10000 can be a device of other electric vehicles.

[0071] Ingeniously, the method of the invention comprises a first step E1) consisting of coupling a second electric vehicle (1000) to the first electric vehicle (10) via a first connection device (100) of the first electric vehicle. The method then comprises a second step E2) consisting of starting a communication protocol between the second electric vehicle (1000) and the first electric vehicle (10), said second step E2) consisting of identifying the energy supplying vehicle as the first electric vehicle (10) and the energy receiving vehicle as the second electric vehicle (1000). During a third step E3), the second electric vehicle (1000) and the first electric vehicle (10) are configured to allow electrical energy from the second electrical energy storage device of the first electric vehicle (10) to be transferred to the second electrical energy storage device (6000) of the second electric vehicle. The method then implements a fourth step E4) consisting of preparing for the transfer of electrical energy. During a fifth step E5), electrical energy is transferred from the second electrical energy storage device (60) of the first electric vehicle to the second electrical energy storage device (6000) of the second electric vehicle. Finally, the method comprises a sixth step E6) comprising stopping the transfer of electrical energy from the second electrical energy storage device (60) of the first electric vehicle to the second electrical energy storage device (6000) of the second electric vehicle.

[0072] As a variant, during the third step E3), it is proposed to: control the connection and control device (70) of the first electric vehicle so as to electrically connect the coupling device (20) of the first electric vehicle to the fourth quater connection device (103_quater) of the first electric vehicle using the third connection device (102) of the first electric vehicle, and control the connection and control device (7000) of the second electric vehicle so as to electrically connect the coupling device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

[0073] In another embodiment, during a third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the fourth quater coupling device (103_quater) of the first electric vehicle using the third connection device (102) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device (6000) of the second electric vehicle to the coupling device (2000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle.

[0074] In another embodiment, during a third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the second electrical energy storage device (60) of the first electric vehicle to the connection device (20) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the connection device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

[0075] In another embodiment, during the third step E3), the second vehicle (10000) further comprises a converter (9000) of a second electric vehicle, which is arranged between the conversion and control device (7000) of the second electric vehicle and the second electrical energy storage device (6000) of the second electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the second electrical energy storage device (60) of the first electric vehicle to the connection device (20) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device (6000) of the second electric vehicle to the connection device (2000) of the second electric vehicle by passing through the converter (9000) of the second electric vehicle.

[0076] In another embodiment, during the third step E3), the first vehicle (100) further comprises a converter (90) of the first electric vehicle, which is arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the third connection device (102) of the first electric vehicle and to connect the second electrical energy storage device (60) of the first electric vehicle to the converter (90) of the first electric vehicle arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the coupling device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

[0077] In another embodiment, during the third step E3), the first vehicle (100) further comprises a converter (90) of the first electric vehicle, which is arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the third connection device (102) of the first electric vehicle and to connect the second electrical energy storage device (60) of the first electric vehicle to the converter (90) of the first electric vehicle arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device (6000) of the second electric vehicle to the coupling device (2000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle.

[0078] Thus, by means of the invention, it is possible to recharge the high-voltage battery of an energized electric vehicle coupled to another energizing electric vehicle in the absence of a fixed energy source and with increased modularity.

Claims

1. A method for charging a second electric vehicle (1000) by a first electric vehicle (1000), the first electric vehicle (10) comprising: The coupling device (20) of the first electric vehicle, the first matching device (30) of the first electric vehicle connected to the coupling device (20) of the first electric vehicle using the second connecting device (101) of the first electric vehicle, the second electric energy storage device (60) of the first electric vehicle suitable for storing electric energy, the conversion and control device (70) of the first electric vehicle connected to the coupling device (20) of the first electric vehicle using the third connecting device (102) of the first electric vehicle, the power regulating device (70_50) of the first electric vehicle arranged between the first matching device (30) of the first electric vehicle and the rectifier device (50) of the first electric vehicle connected to the first bis connecting device (103_bis) of the first electric vehicle A matching device (30), wherein the power conditioning device (70_50) of the first electric vehicle is further connected to the conversion and control device (70) of the first electric vehicle using the fourth quater connection device (103_quater) of the first electric vehicle, and is connected to the rectification device (50) of the first electric vehicle using the fourth ter connection device (103_ter) of the first electric vehicle, the second electric energy storage device (60) of the first electric vehicle is connected to the rectification device (50) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and the second electric energy storage device (60) of the first electric vehicle is connected to the conversion and control device (70) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and The second electric vehicle (1000) comprises: a coupling device (2000) of the second electric vehicle, a first matching device (3000) of the second electric vehicle coupled to the coupling device (2000) of the second electric vehicle using a second connecting device (10100) of the second electric vehicle, a second electric energy storage device (6000) of the second electric vehicle adapted to store electric energy, a conversion and control device (7000) of the second electric vehicle coupled to the coupling device (2000) of the second electric vehicle using a third connecting device (10200) of the second electric vehicle, a power regulating device (7000_50) of the first electric vehicle disposed between the first matching device (3000) of the second electric vehicle and a rectifying device (5000) of the second electric vehicle coupled to the second electric vehicle using a fourth bis connecting device (10300_bis) of the second electric vehicle The first matching device (3000) of the second electric vehicle is connected to the first matching device (3000) of the second electric vehicle, the power conditioning device (7000_50) of the second electric vehicle is further connected to the conversion and control device (7000) of the second electric vehicle using the fourth quater connection device (10300_quater) of the second electric vehicle, and is connected to the rectification device (5000) of the second electric vehicle using the fourth ter connection device (10300_ter) of the second electric vehicle, the second electric energy storage device (6000) of the second electric vehicle is connected to the rectification device (5000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle, and the second electric energy storage device (6000) of the second electric vehicle is connected to the conversion and control device (7000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle, and the charging method includes the following steps: A first step E1) comprises coupling the second electric vehicle (1000) to the first electric vehicle (10) using a first connection device (100) of the first electric vehicle; A second step E2) comprises starting a communication protocol between the second electric vehicle (1000) and the first electric vehicle (10), wherein the second step E2) comprises determining the energy supplying vehicle as the first electric vehicle (10) and the energy receiving vehicle as the second electric vehicle (1000); a third step E3) comprising configuring the second electric vehicle (1000) and the first electric vehicle (10) so as to allow electrical energy to be transferred from the second electrical energy storage device of the first electric vehicle (10) to the second electrical energy storage device (6000) of the second electric vehicle; A fourth step E4) consists of preparing the transmission of electrical energy; A fifth step E5) comprises transferring electrical energy originating from the second electrical energy storage device (60) of the first electric vehicle to the second electrical energy storage device (6000) of the second electric vehicle; A sixth step E6) comprises stopping the transmission of electrical energy from the second electrical energy storage device (60) of the first electric vehicle to the second electrical energy storage device (6000) of the second electric vehicle.

2. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to the preceding claim, wherein During the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the fourth quater connection device (103_quater) of the first electric vehicle using the third connection device (102) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the coupling device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

3. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1, wherein: During the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the fourth quater coupling device (103_quater) of the first electric vehicle using the third connection device (102) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device (6000) of the second electric vehicle to the coupling device (2000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle.

4. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1, wherein: During the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the second electrical energy storage device (60) of the first electric vehicle to the connection device (20) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the connection device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

5. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1, wherein: The second electric vehicle (10000) further comprises a converter (9000) of the second electric vehicle, the converter being arranged between the conversion and control device (7000) of the second electric vehicle and the second electric energy storage device (6000) of the second electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the second electric energy storage device (60) of the first electric vehicle to the connection device (20) of the first electric vehicle using the fifth connection device (104) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electric energy storage device (6000) of the second electric vehicle to the connection device (2000) of the second electric vehicle by passing through the converter (9000) of the second electric vehicle.

6. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1, wherein: The first electric vehicle (100) further comprises a converter (90) of the first electric vehicle, the converter being arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the third connection device (102) of the first electric vehicle and to connect the second electrical energy storage device (60) of the first electric vehicle to the converter (90) of the first electric vehicle arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the coupling device (2000) of the second electric vehicle to the fourth quater connection device (10300_quater) of the second electric vehicle using the third connection device (10200) of the second electric vehicle.

7. The method for charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1, wherein: The first electric vehicle (100) further comprises a converter (90) of the first electric vehicle, the converter being arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, wherein, during the third step E3), the connection and control device (70) of the first electric vehicle is controlled so as to electrically connect the coupling device (20) of the first electric vehicle to the third connection device (102) of the first electric vehicle and to connect the second electrical energy storage device (60) of the first electric vehicle to the converter (90) of the first electric vehicle arranged between the conversion and control device (70) of the first electric vehicle and the second electrical energy storage device (60) of the first electric vehicle, and the connection and control device (7000) of the second electric vehicle is controlled so as to electrically connect the second electrical energy storage device (6000) of the second electric vehicle to the coupling device (2000) of the second electric vehicle using the fifth connection device (10400) of the second electric vehicle.

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