FR3144948A1 - Method for managing the charging of a battery of an electric vehicle by another electric vehicle. - Google Patents

Abstract

The invention relates to a method for charging a second electric vehicle (1000) by a first electric vehicle (1000), said comprising the following steps: a first step E1) consisting of coupling, using first connection means of the first electric vehicle (100), the second electric vehicle (1000) to said first electric vehicle (10), a second step E2), consisting of launching a protocol communication between the second electric vehicle (1000) and the first electric vehicle (10), said second step E2) and determining a donor vehicle as being the first electric vehicle (10) and determining a recipient vehicle as being the second vehicle electric vehicle (1000), a third step E3) consisting of configuring the second electric vehicle (1000) and the first electric vehicle (10) so as to allow a transfer of electrical energy. Figure for abstract: Fig 5.

Description

Method for managing the charging of a battery of an electric vehicle by another electric vehicle.

The invention relates to the field of electric vehicles and more particularly to a method of managing the charging of a battery of an electric vehicle by another electric vehicle.

The electric vehicle is increasingly common on our roads and benefits from a significant enthusiasm from motorists. However, recharging the battery of the electric vehicle is a blocking point to its development and represents a strategic issue for car manufacturers. Indeed, the battery recharge time, the availability and location of the infrastructure to recharge the electric car mean that the electric vehicle is not yet as easy to use as a combustion engine vehicle, thus slowing down its development.

There are mainly two types of techniques or infrastructures for recharging an electric vehicle battery. The first is a domestic charge connecting the electric vehicle to the domestic single-phase network (220 Volt domestic socket) which has the advantage of being universal but which requires a relatively long recharging time.

The second is recharging via a fast charging station located, for example, in a supermarket car park. This type of recharging requires relatively heavy investments for its deployment, however it has the advantage of allowing the electric vehicle battery to be charged much more quickly.

In addition, there are mainly two types of battery chargers for electric vehicles. The first is a battery charger called an "on-board charger" in the electric vehicle, which is sometimes called an "on board charger". The latter is mainly used when connecting to the domestic network and its role is to convert the voltage of said electrical network (alternating voltage) into a voltage suitable for the vehicle's battery (direct voltage).

The on-board charger has the disadvantage of being bulky and it also includes a significant number of electronic conversion and/or voltage adaptation stages corresponding to the conversion of the alternating voltage into the direct voltage necessary for charging the battery.

The second type of charger is an external battery charger for the electric vehicle, which is sometimes called an “off board charger”. The external charger has the advantage of being installed on the charging station and not in the electric vehicle and therefore does not take up space in the vehicle.

However, both the on-board charger and the external charger have the common disadvantage of requiring an electrical network available and close to the electric vehicle. Indeed, for an on-board charger it is necessary to have a domestic socket connected to the electrical network near the electric vehicle and for the external charger to have a fast charging station nearby. Thus, with these two types of chargers it is necessary to have a fixed energy source near the electric vehicle to be able to recharge the battery.

In addition, the on-board charger requires a significant number of electrical conversion stages in order to make the voltage of the electrical network compatible with the voltage of the battery, generating significant conversion losses and therefore an extension of the charging time of the electric vehicle battery.

Also, depending on the type of charger on board the vehicle requiring the charge and depending on the type of charger on board the vehicle providing the charge, it is necessary to make compatible the signals representative of the electrical charge to be transferred and also to control them.

An objective of the invention is to propose a method for recharging one electric vehicle by another that does not require the presence of a fixed source of electrical energy nearby and that has maximum compatibility between the vehicles. In other words, the objective of the invention is to propose a method for recharging one vehicle by another vehicle with a reduced compatibility problem.

• une première étape E1) consistant à coupler à l’aide de premiers moyens de liaison d premier véhicule électrique le second véhicule électrique audit premier véhicule électrique,
• une deuxième étape E2), consistant à lancer un protocole de communication entre le second véhicule électrique et le premier véhicule électrique, ladite deuxième étape E2) et à déterminer un véhicule donneur comme étant le premier véhicule électrique (et à déterminer un véhicule receveur comme étant le second véhicule électrique,
• une troisième étape E3) consistant à configurer le second véhicule électrique et le premier véhicule électrique de sorte à permettre un transfert d’une énergie électrique provenant de second moyen de stockage de l’énergie électrique de premier véhicule électrique vers le second moyen de stockage de l’énergie électrique de second véhicule électrique,
• une quatrième étape E4) consistant à préparer le transfert de l’énergie électrique,
• une cinquième étape E5) consistant à transférer l’énergie électrique provenant de second moyen de stockage de l’énergie électrique de premier véhicule électrique vers le second moyen de stockage de l’énergie électrique de second véhicule électrique,
• une sixième étape E6) consistant à stopper le transfert de l’énergie électrique provenant de second moyen de stockage de l’énergie électrique de premier véhicule électrique vers le second moyen de stockage de l’énergie électrique de second véhicule électrique.

The invention relates to a method for charging a second electric vehicle by a first electric vehicle, the first electric vehicle comprising first electric vehicle coupling means, first first electric vehicle adaptation means coupled to the first electric vehicle coupling means using a second first electric vehicle connection means, second first electric vehicle electrical energy storage means adapted to store electrical energy, first electric vehicle conversion and control means coupled using a third first electric vehicle connection means to the first electric vehicle coupling means, first electric vehicle power regulator means arranged between the first first electric vehicle adaptation means and the first electric vehicle rectifier means being coupled to the first first electric vehicle adaptation means using a fourth first electric vehicle connection means, said first electric vehicle power regulator means also being coupled to the first electric vehicle conversion and control means using a fourth first electric vehicle connection means and to the first electric vehicle rectifier means. using a fourth first electric vehicle connecting means, the second first electric vehicle electrical energy storage means being coupled to the first electric vehicle rectifier means using a fifth first electric vehicle connecting means, said second first electric vehicle electrical energy storage means being coupled to the first electric vehicle conversion and control means using the fifth first electric vehicle connecting means, and the second electric vehicle comprising second electric vehicle coupling means, first second electric vehicle adaptation means coupled to the second electric vehicle coupling means using a second second electric vehicle connecting means, second second electric vehicle electrical energy storage means adapted to store electrical energy, second electric vehicle conversion and control means coupled using a third second electric vehicle connecting means to the second electric vehicle coupling means, first electric vehicle power regulator means arranged between the first second electric vehicle adaptation means and the second electric vehicle rectifier means being coupled to the first means second electric vehicle adaptation means using a fourth bis second electric vehicle connecting means, said second electric vehicle power regulator means also being coupled to the second electric vehicle conversion and control means using a fourth quater second electric vehicle connecting means and to the second electric vehicle rectifier means using a fourth ter second electric vehicle connecting means, the second second electric vehicle electrical energy storage means being coupled to the second electric vehicle rectifier means using a fifth second electric vehicle connecting means, said second second electric vehicle electrical energy storage means being coupled to the second electric vehicle conversion and control means using the fifth second electric vehicle connecting means, said comprising the following steps:

• a first step E1) consisting of coupling the second electric vehicle to said first electric vehicle using first connecting means of the first electric vehicle,
• a second step E2), consisting of launching a communication protocol between the second electric vehicle and the first electric vehicle, said second step E2) and determining a donor vehicle as being the first electric vehicle (and determining a recipient vehicle as being the second electric vehicle,
• a third step E3) consisting in configuring the second electric vehicle and the first electric vehicle so as to allow a transfer of electrical energy coming from the second means for storing electrical energy of the first electric vehicle to the second means for storing electrical energy of the second electric vehicle,
• a fourth step E4) consisting of preparing the transfer of electrical energy,
• a fifth step E5) consisting in transferring the electrical energy coming from the second means of storing the electrical energy of the first electric vehicle to the second means of storing the electrical energy of the second electric vehicle,
• a sixth step E6) consisting in stopping the transfer of electrical energy coming from the second means of storing electrical energy of the first electric vehicle to the second means of storing electrical energy of the second electric vehicle.

For example, in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the first electric vehicle coupling means to the fourth quater first electric vehicle connection means using the third first electric vehicle connection means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second electric vehicle coupling means to the fourth quater second electric vehicle connection means using the third second electric vehicle connection means.

In a variant, in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the first electric vehicle coupling means to the fourth first electric vehicle connection means using the third first electric vehicle connection means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second second electric vehicle electrical energy storage means to the second electric vehicle coupling means using the fifth second electric vehicle connection means.

For example, in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the second first electric vehicle electrical energy storage means to the first electric vehicle coupling means using the fifth first electric vehicle connection means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second electric vehicle coupling means to the fourth second electric vehicle connection means using the third second electric vehicle connection means.

Alternatively, in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the second first electric vehicle electrical energy storage means to the first electric vehicle coupling means using the fifth first electric vehicle connection means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second second electric vehicle electrical energy storage means to the second electric vehicle coupling means via the second electric vehicle converter.

Alternatively, in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the first electric vehicle coupling means to the third first electric vehicle connection means and couple the second first electric vehicle electrical energy storage means to the first electric vehicle converter arranged between the first electric vehicle conversion and control means and the second first electric vehicle electrical energy storage means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second electric vehicle coupling means to the fourth second electric vehicle connection means using the third second electric vehicle connection means.

Also, as an exemplary embodiment, said first vehicle further comprises a first electric vehicle converter arranged between the first electric vehicle conversion and control means and the second first electric vehicle electrical energy storage means, wherein in the third step E3), the first electric vehicle connection and control means are controlled so as to electrically couple the first electric vehicle coupling means to the third first electric vehicle connection means and couple the second first electric vehicle electrical energy storage means to the first electric vehicle converter arranged between the first electric vehicle conversion and control means and the second first electric vehicle electrical energy storage means, and the second electric vehicle connection and control means are controlled so as to electrically couple the second second electric vehicle electrical energy storage means to the second electric vehicle coupling means using the fifth second electric vehicle connection means.

Other features and advantages of the invention will become apparent from reading the description which follows. This description is purely illustrative and must be read in conjunction with the attached drawings in which:

There is a structural illustration of an electric vehicle according to the invention,

There is a structural illustration of a variant of an electric vehicle according to the invention,

There is a structural illustration of a variant of an electric vehicle according to the invention,

There is a structural illustration of a variant of an electric vehicle according to the invention,

There presents an illustration of the method according to the invention.

In reference to the , a first electric vehicle 10 is shown and its main functions well known to those skilled in the art.

The electric vehicle 10 according to the present invention generally and non-limitingly comprises first electric vehicle coupling means 20 adapted to couple, using a first first electric vehicle connection means 100, the electric vehicle 10 to an external electrical energy source 200.

For example, the external electrical energy source 200 may be a conventional electrical outlet in a house connected to the domestic electrical network delivering 220 volts alternating current.

Alternatively, to avoid long-term damage to the conventional home power outlet, the external electrical energy source 200 may be a reinforced outlet always connected to the home's electrical network. This reinforced outlet is suitable for the passage of a stronger current, allowing a reduction in the recharge time.

Alternatively, the external electrical energy source 200 may be a dedicated wall-mounted charging station still located in the home. Advantageously, this wall-mounted charging station is specially designed to supply the car with electricity via the home network but adapted to deliver greater electrical power in order to further reduce the charging time.

Finally, in another example of use, the external electrical energy source 200 may be a fast charging station located in a supermarket parking lot. Advantageously, this type of fast charging station allows the passage of high power using direct current, unlike the previous variants which are used only for alternating current. Thus, it is possible to reduce the charging time by 10 or 20.

The first electric vehicle connecting means 100 connecting the first electric vehicle coupling means 20 to the external electrical energy source 200 are, in the case where the external electrical energy source 200 is a conventional power outlet of a house, a universal electrical cable which may be the one delivered with the electric vehicle 10 and adapted to connect the electric vehicle 10 to the electrical outlet of the house. This type of cable (as well as the outlet) is also called a mode 2 cable.

In the case where the external electrical energy source 200 is a dedicated wall charging station, the first means of connecting the first electric vehicle 100 may be a mode 3 type electric cable. This type of cable has a connector and a cable diameter allowing faster charging of the electric vehicle 10.

In the case where the external electrical energy source 200 is a public fast charging station, the first means of connecting the first electric vehicle 100 is for example a dedicated cable of mode 4 type; in this case, said cable is that of the fast charging station and not that of the electric vehicle.

The electric vehicle 10 comprises first first electric vehicle adaptation means 30 coupled to the first electric vehicle coupling means 20 using a second first electric vehicle connection means 101. The first first electric vehicle adaptation means 30 are also coupled to first electric vehicle rectifier means 50 using a fourth first electric vehicle connection means 103.

The electric vehicle 10 also comprises first means for storing the electrical energy of the first electric vehicle 40 and second means for storing the electrical energy of the first electric vehicle 60. For example, the first means for storing the electrical energy of the first electric vehicle 40 are a low-voltage battery and the second means for storing the electrical energy of the first electric vehicle 60 are a high-voltage battery. Solutions for adapting the voltage and power level between the two batteries making it possible to recharge the low-voltage battery by the high-voltage battery are known to those skilled in the art.

The electric vehicle 10 also comprises first electric vehicle conversion and control means 70 coupled using a third first electric vehicle connection means 102 to the first electric vehicle coupling means 20.

The first electric vehicle conversion and control means 70 are also coupled using fifth first electric vehicle connection means 104 to the second first electric vehicle electrical energy storage means 60, and said first electric vehicle conversion and control means 70 are also coupled to the first electric vehicle transmission and propulsion means 80.

As illustrated in the , the first electric vehicle conversion and control means 70 are coupled in parallel with the first first electric vehicle adaptation means 30 and the first electric vehicle rectifier means 50. In other words, the first electric vehicle conversion and control means 70 are adapted to either directly couple the second first electric vehicle electrical energy storage means 60 to the first electric vehicle coupling means 20 using fifth first electric vehicle connection means 104, or couple the second first electric vehicle electrical energy storage means 60 to the first electric vehicle coupling means 20 via the first first electric vehicle adaptation means 30 and the first electric vehicle rectifier means 50.

The first means of storing the electrical energy of the first electric vehicle 40 are for example a battery having an available voltage value of the order of 12 volts and adapted to provide an on-board network voltage of the electric vehicle 10.

The second means for storing the electrical energy of the first electric vehicle 60 are, for example, a high-voltage electric battery. The electric battery may be, in an exemplary embodiment, a 400 V or 800 V battery. The battery technology has no influence on the invention and will therefore not be detailed in the remainder of the description. The battery may be, for example, a lithium ion battery, or a lithium metal polymer battery or a lithium ion polymer battery.

The first means of adaptation of the first electric vehicle 30 are for example an alternating voltage converter into direct voltage or AC/DC converter in English.

In the case where the electric vehicle 10 is coupled via the first means of connecting the first electric vehicle 100 using a cable of the mode 2 or mode 3 type, then the first means of adapting the first electric vehicle 30 and the rectifier means of the first electric vehicle 50 are adapted to convert an alternating current delivered by the electrical energy source 200 into a direct current adapted to recharge the second means of storing the electrical energy of the first electric vehicle 60.

In the case where the electric vehicle 10 is connected to the electrical energy source 200 using a mode 2 or mode 3 type cable, that is to say that an alternating current is used, then the conversion and control means of the first electric vehicle 70 are adapted to manage the power supplied by the on-board charger in order to recharge the second means of storing the electrical energy of the first electric vehicle 60. They can for example comprise a power calculator adapted to manage the compatibility of the powers between the different modules of the electric vehicle 10.

In a first exemplary embodiment, the first electric vehicle conversion and control means 70 are adapted to short-circuit the first first electric vehicle adaptation means 30 and the first electric vehicle rectifier means 50 in order to electrically couple, using the fifth first electric vehicle connection means 104, the second first electric vehicle electrical energy storage means 60 to the first electric vehicle coupling means 20.

For example, the first electric vehicle conversion and control means 70 comprise switches adapted to switch high electrical power. For example, the switches can be controlled according to a strategy determined by a computer. Thus, thanks to the invention, it is possible to transfer the energy stored in the second means for storing the electrical energy of the first electric vehicle 60 to the first electric vehicle coupling means 20 in order, for example, to recharge another compatible electric vehicle or capable of receiving said energy.

In a second example of embodiment as illustrated , the first electric vehicle of first electric vehicle 10 comprises a first electric vehicle converter 90 of direct/direct voltage arranged between the means of conversion and control of first electric vehicle 70 and the second means of storage of the electrical energy of first electric vehicle 60. The first electric vehicle converter 90 is for example adapted to adapt voltage levels of the second means of storage of the electrical energy of first electric vehicle 60 and/or to galvanically isolate the second means of storage of the electrical energy of first electric vehicle 60 of the first electric vehicle 10 from another electric vehicle which would be coupled. The first electric vehicle converter 90 of direct/direct voltage has a low level of losses by conversion.

The means of connection of the first electric vehicle may be a direct voltage bus called by those skilled in the art a “DC BUS”.

In another embodiment, as illustrated in , the first electric vehicle conversion and control means 70 comprise first electric vehicle power regulator means 70_50 adapted to control the quantity of current absorbed or delivered.

The internal structure of the first electric vehicle power regulator means 70_50 is well known to those skilled in the art; they comprise, for example, at least one capacitor arranged in series with a resistor. A relay-type switch may also be mounted in parallel with the resistor Rd. The first electric vehicle power regulator means 70_50 are adapted to accept a relatively large effective current value when charging the battery and to reduce, or sufficiently filter, ripples of a rectified voltage at the output of the first electric vehicle power factor correction circuit 30.

Thus, the first electric vehicle power regulator means 70_50 are adapted to filter said ripples so that they are compatible with the input characteristics of the first electric vehicle rectifier means 50. Cleverly, the internal structure of the first electric vehicle power regulator means 70_50 is reversible.

For the understanding of the invention, the power regulator means of the first electric vehicle 70_50 are separated from the conversion and control means of the first electric vehicle 70 as in the but they can also be integrated into said conversion and control means of the first electric vehicle 70.

Thus, for example, the first electric vehicle power regulator means 70_50 are arranged between the first first electric vehicle adaptation means 30 and the first electric vehicle rectifier means 50. They are coupled to the first first electric vehicle adaptation means 30 using a fourth bis first electric vehicle connection means 103_bis. They are also coupled to the first electric vehicle conversion and control means 70 using a fourth quater first electric vehicle connection means 103_quater. In an exemplary embodiment, the fourth bis first electric vehicle connection means 103_bis is directly coupled to the fourth ter first electric vehicle connection means 103_ter. The first electric vehicle power regulator means 70_50 are also coupled to the first electric vehicle rectifier means 50 using a fourth ter first electric vehicle connection means 103_ter.

By virtue of the internal structure of the first electric vehicle conversion and control means 70 and the first electric vehicle power regulator means 70_50, it is possible to electrically select and couple the coupling means 20 using the third first electric vehicle connection means 102. Furthermore, it is also possible to electrically couple the second first electric vehicle electrical energy storage means 60 to the first electric vehicle coupling means 20 using the fifth first electric vehicle connection means 104 to the fourth first electric vehicle connection means 103_quater.

For example, the first electric vehicle conversion and control means 70 comprise switches adapted to switch high electrical power. For example, the switches can be controlled according to a strategy determined by a computer. Thus, thanks to the invention, it is possible to transfer the energy stored in the second means for storing the electrical energy of the first electric vehicle 60 to the first electric vehicle coupling means 20 in order, for example, to recharge another compatible electric vehicle or capable of receiving said energy.

In an exemplary embodiment, the invention also proposes that a second electric vehicle 1000 has the same internal structure as the first electric vehicle 10.

As illustrated ( ) the second electric vehicle 1000 also comprises means for converting and controlling the second vehicle 7000, means for regulating the power of the second vehicle 7000_50 adapted to control the quantity of current absorbed or delivered.

The internal structure of the second vehicle power regulator means 7000_50 is well known to those skilled in the art, they comprise, for example, at least one capacitor arranged in series with a resistor. A relay-type switch can also be mounted in parallel with the resistor Rd. The second vehicle power regulator means 7000_50 are adapted to accept a relatively large effective current value when charging the battery and to reduce, or sufficiently filter, ripples of a rectified voltage at the output of the second vehicle power factor correction circuit 3000.

Thus, the second vehicle power regulator means 7000_50 are adapted to filter said ripples so that they are compatible with the input characteristics of the second vehicle rectifier means 5000. Cleverly, the internal structure of the second vehicle power regulator means 7000_50 is reversible.

For the understanding of the invention, the second vehicle power regulator means 7000_50 are separated from the second vehicle conversion and control means 7000 as in the but they can also be integrated into said second vehicle conversion and control means 7000.

Thus, for example, the second vehicle power regulator means 7000_50 are arranged between the first second vehicle adaptation means 3000 and the second vehicle rectifier means 5000. They are coupled to the first second vehicle adaptation means 3000 using a fourth bis second vehicle connection means 10300_bis. They are also coupled to the second vehicle conversion and control means 7000 using a fourth quater second vehicle connection means 10300_quater. In an exemplary embodiment, the fourth bis second vehicle connection means 10300_bis is directly coupled to the fourth ter second vehicle connection means 10300_ter. The second vehicle power regulator means 7000_50 are also coupled to the second vehicle rectifier means 500 using a fourth ter second vehicle connection means 10300_ter.

By virtue of the internal structure of the second vehicle conversion and control means 7000 and the second vehicle power regulator means 7000_50, it is possible to electrically select and couple the second vehicle coupling means 2000 using the third second vehicle connection means 10200. Furthermore, it is also possible to electrically couple the second vehicle electrical energy storage means 6000 to the second vehicle coupling means 2000 using the fourth second vehicle connection means 10300_quater using the fifth second vehicle connection means 10400.

For example, the second vehicle conversion and control means 7000 comprise switches adapted to switch high electrical power. For example, the switches can be controlled according to a strategy determined by a computer. Thus, thanks to the invention, it is possible to receive the energy to recharge the second means for storing the electrical energy of the second vehicle 6000.

As mentioned above in the description, it is sometimes possible for an electric vehicle to find itself in a situation where its available energy reserve is too low to be able to reach, for example, its driver's home or a public charging station, putting the user in a relatively complicated situation.

Thus, the invention proposes as illustrated in the a method for controlling and charging a second electric vehicle 1000 coupled to a first electric vehicle 10 using the first connecting means 100 of the first electric vehicle 10. Of course, the first connecting means 10000 can be that of the other electric vehicle.

Cleverly, the method of the invention comprises a first step E1) consisting in coupling, using first connecting means of the first electric vehicle (100), the second electric vehicle (1000) to said first electric vehicle (10). Then it comprises a second step E2), consisting in launching a communication protocol between the second electric vehicle (1000) and the first electric vehicle (10), said second step E2) and determining a donor vehicle as being the first electric vehicle (10) and determining a recipient vehicle as being the second electric vehicle (1000). During a third step E3) consisting in configuring the second electric vehicle (1000) and the first electric vehicle (10) so as to allow a transfer of electrical energy coming from the second means for storing the electrical energy of the first electric vehicle (10) to the second means for storing the electrical energy of the second electric vehicle (6000). Then, it carries out a fourth step E4) consisting in preparing the transfer of the electrical energy. In a fifth step E5) consisting of transferring the electrical energy coming from the second means of storing the electrical energy of the first electric vehicle (60) to the second means of storing the electrical energy of the second electric vehicle (6000). Finally, it has a sixth step E6) consisting of stopping the transfer of the electrical energy coming from the second means of storing the electrical energy of the first electric vehicle (60) to the second means of storing the electrical energy of the second electric vehicle (6000).

Alternatively, it is proposed in the third step E3) that the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the fourth quater first electric vehicle connection means (103_quater) using the third first electric vehicle connection means (102), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second electric vehicle coupling means (2000) to the fourth quater second electric vehicle connection means (10300_quater) using the third second electric vehicle connection means (10200).

In another exemplary embodiment, in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the fourth first electric vehicle connection means (103_quater) using the third first electric vehicle connection means (102), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000) using the fifth second electric vehicle connection means (10400).

In another exemplary embodiment, in the third step E3), in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle coupling means (20) using the fifth first electric vehicle connection means (104), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second electric vehicle coupling means (2000) to the fourth second electric vehicle connection means (10300_quater) using the third second electric vehicle connection means (10200).

In another exemplary embodiment, in the third step E3), said second vehicle (10000) further comprising a second electric vehicle converter (9000) arranged between the second electric vehicle conversion and control means (7000) and the second second electric vehicle electrical energy storage means (6000), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle coupling means (20) using the fifth first electric vehicle connection means (104), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000) via the second electric vehicle converter (9000).

In another exemplary embodiment, in the third step E3), said first vehicle (100) further comprising a first electric vehicle converter (90) arranged between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the third first electric vehicle connection means (102) and couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle converter (90) arranged between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second electric vehicle coupling means (2000) to the fourth step E3). quater means of connecting second electric vehicle (10300_quater) using the third means of connecting second electric vehicle (10200).

In another exemplary embodiment, in the third step E3), said first vehicle (100) further comprising a first electric vehicle converter (90) arranged between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the third first electric vehicle connection means (102) and couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle converter (90) arranged between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000) using the fifth second electric vehicle connecting means (10400).

Thus, thanks to the invention, it is possible to recharge the high voltage battery of a receiving electric vehicle coupled to another donor electric vehicle without the presence of a fixed energy source with increased modularity.

Claims (7)

A method of charging a second electric vehicle (1000) by a first electric vehicle (1000), the first electric vehicle (10) comprising first electric vehicle coupling means (20), first first electric vehicle adaptation means (30) coupled to the first electric vehicle coupling means (20) using a second first electric vehicle connection means (101), second first electric vehicle electrical energy storage means (60) adapted to store electrical energy, first electric vehicle conversion and control means (70) coupled using a third first electric vehicle connection means (102) to the first electric vehicle coupling means (20), first electric vehicle power regulator means (70_50) arranged between the first first electric vehicle adaptation means (30) and first electric vehicle rectifier means (50) being coupled to the first first electric vehicle adaptation means (30) using a fourth first electric vehicle connection means (101), first electric vehicle connection (103_bis), said first electric vehicle power regulator means (70_50) also being coupled to the first electric vehicle conversion and control means (70) by means of a fourth quater first electric vehicle connection means (103_quater) and to the first electric vehicle rectifier means (50) by means of a fourth ter first electric vehicle connection means (103_ter), the second first electric vehicle electrical energy storage means (60) being coupled to the first electric vehicle rectifier means (50) by means of a fifth first electric vehicle connection means (104), said second first electric vehicle electrical energy storage means (60) being coupled to the first electric vehicle conversion and control means (70) by means of the fifth first electric vehicle connection means (104), and
the second electric vehicle (1000) comprising second electric vehicle coupling means (2000), first second electric vehicle adaptation means (3000) coupled to the second electric vehicle coupling means (2000) by means of a second second electric vehicle connection means (10100), second second electric vehicle electrical energy storage means (6000) adapted to store electrical energy, second electric vehicle conversion and control means (7000) coupled by means of a third second electric vehicle connection means (10200) to the second electric vehicle coupling means (2000), first electric vehicle power regulator means (7000_50) arranged between the first second electric vehicle adaptation means (3000) and second electric vehicle rectifier means (5000) being coupled to the first second electric vehicle adaptation means (3000) by means of a fourth second electric vehicle connection means (10200). second electric vehicle connection (10300_bis), said second electric vehicle power regulator means (7000_50) also being coupled to the second electric vehicle conversion and control means (7000) using a fourth quater second electric vehicle connection means (10300_quater) and to the second electric vehicle rectifier means (5000) using a fourth ter second electric vehicle connection means (10300_ter), the second second electric vehicle electrical energy storage means (6000) being coupled to the second electric vehicle rectifier means (5000) using a fifth second electric vehicle connection means (10400), said second second electric vehicle electrical energy storage means (6000) being coupled to the second electric vehicle conversion and control means (7000) using the fifth second electric vehicle connection means (10400), said charging method comprising the following steps:

• a first step E1) consisting of coupling, using first connecting means of the first electric vehicle (100), the second electric vehicle (1000) to said first electric vehicle (10),
• a second step E2), consisting of launching a communication protocol between the second electric vehicle (1000) and the first electric vehicle (10), said second step E2) consisting of determining a donor vehicle as being the first electric vehicle (10) and determining a recipient vehicle as being the second electric vehicle (1000),
• a third step E3) consisting in configuring the second electric vehicle (1000) and the first electric vehicle (10) so as to allow a transfer of electrical energy coming from the second means for storing the electrical energy of the first electric vehicle (10) to the second means for storing the electrical energy of the second electric vehicle (6000),
• a fourth step E4) consisting of preparing the transfer of electrical energy,
• a fifth step E5) consisting in transferring the electrical energy coming from the second means for storing the electrical energy of the first electric vehicle (60) to the second means for storing the electrical energy of the second electric vehicle (6000),
• a sixth step E6) consisting in stopping the transfer of electrical energy coming from the second means of storing electrical energy of the first electric vehicle (60) to the second means of storing electrical energy of the second electric vehicle (6000).

A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to the preceding claim, wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the fourth quater first electric vehicle connection means (103_quater) using the third first electric vehicle connection means (102), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second electric vehicle coupling means (2000) to the fourth quater second electric vehicle connection means (10300_quater) using the third second electric vehicle connection means (10200). A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1 wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the fourth first electric vehicle connection means (103_quater) using the third first electric vehicle connection means (102), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000) using the fifth second electric vehicle connection means (10400). A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1 wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle coupling means (20) using the fifth first electric vehicle connection means (104), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second electric vehicle coupling means (2000) to the fourth second electric vehicle connection means (10300_quater) using the third second electric vehicle connection means (10200). A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1 wherein said second vehicle (10000) further comprising a second electric vehicle converter (9000) disposed between the second electric vehicle conversion and control means (7000) and the second second electric vehicle electrical energy storage means (6000), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle coupling means (20) using the fifth first electric vehicle connection means (104), and the second electric vehicle connection and control means (7000) are controlled so as to electrically couple the second second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000). passing through the second electric vehicle converter (9000). A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1 wherein said first vehicle (100) further comprising a first electric vehicle converter (90) disposed between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the third first electric vehicle connection means (102) and couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle converter (90) disposed between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), and the second electric vehicle connection and control means (70 ... electrically the second electric vehicle coupling means (2000) to the fourth second electric vehicle connecting means (10300_quater) using the third second electric vehicle connecting means (10200). A method of charging a second electric vehicle (1000) by a first electric vehicle (1000) according to claim 1 wherein said first vehicle (100) further comprising a first electric vehicle converter (90) disposed between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), wherein in the third step E3), the first electric vehicle connection and control means (70) are controlled so as to electrically couple the first electric vehicle coupling means (20) to the third first electric vehicle connection means (102) and couple the second first electric vehicle electrical energy storage means (60) to the first electric vehicle converter (90) disposed between the first electric vehicle conversion and control means (70) and the second first electric vehicle electrical energy storage means (60), and the second electric vehicle connection and control means (70 ... electrically connecting the second electric vehicle electrical energy storage means (6000) to the second electric vehicle coupling means (2000) using the fifth second electric vehicle connecting means (10400).