FR2968810A1 - Method for managing recharging process of battery of car at public charging terminals, involves transmitting response message containing data representing location of terminal to driver, so that driver drives vehicle to determined terminal - Google Patents

Abstract

The method involves receiving a message indicating that a driver needs to recharge a battery (BA) of an electric vehicle (V). A terminal is determined from a group of terminals (BR1-BR4) to be connected to the vehicle according to geographical positions of the vehicle and the terminals. An availability criterion of the terminals and a criterion of proximity and/or a criterion of duration of travel to reach the terminal are determined. A response message containing data representing terminal location is transmitted to the driver, so that the driver drives the vehicle to the determined terminal. An independent claim is also included for a system for managing a recharging of a battery of an electric vehicle at public charging points.

Description

The invention relates to the recharging of electric vehicle batteries, possibly of automobile type, and more specifically the management of this recharging. Today, one of the main obstacles to the use of electric vehicles, especially of the automotive type, is the cumulative time required to recharge their batteries. Indeed, the number of charging stations is currently very limited, when a driver needs to recharge the batteries of his vehicle, it may have difficulty finding a station equipped with at least one charging station and the likelihood of it being available is even lower as the number of charging stations located in the area where the vehicle is located is small. It will be appreciated that in practice the above-mentioned probability is often reduced by the fact that some drivers leave their vehicle during charging and do not seek it immediately after the expiration of the initially estimated charging time. In addition, every time the driver is forced to go to a new station, he forces his vehicle to drive additional kilometers, which, on the one hand, makes him waste time and fatigue, and, on the other hand, On the other hand, it unnecessarily uses its vehicle and unloads its batteries unnecessarily even though the objective is to recharge them as quickly as possible. In addition to this problem of availability, it is necessary to recharge the batteries of a vehicle once it has been connected to an available charging station, including in a fast charging mode. Indeed, in the latter mode, it takes today about thirty minutes to get a partial reload, even though refueling a vehicle with combustion engine rarely takes more than two minutes. If we add up the time it takes statistically to find an available charging station and the actual charging time, it can happen, in many geographical areas, a cumulative time very important and therefore prohibitive. It has certainly been proposed, particularly in the document US Patent 2009/082957, to provide the driver in real time the list of charging stations that are accessible to his vehicle given the remaining battery life. But, this solution does not solve the problem of the availability of charging stations at each station. In other words, once the driver has reached a station mentioned in the list provided to him, he has no guarantee that one of the stations of this station is available or the will be very soon.

The invention therefore aims to provide a management of recharging batteries electric vehicles to allow drivers of the latter to lose a minimum of time when they want or need to recharge their batteries. To this end, it proposes a method dedicated to the management of the recharging of electric vehicle batteries, whose geographical positions can be determined, at public charging stations whose geographical positions are known. This method is characterized in that it comprises the following steps following the reception of a message signaling that a driver wants to recharge the battery of his vehicle: a) determining, among at least some of the terminals, at least one terminal adapted to the vehicle, depending on the geographical positions of the vehicle and these terminals, a terminal availability criterion and a proximity criterion and / or a criterion of travel time to get to a terminal, b) transmit a response message, containing data representative of the location where each terminal is located, to the driver, so that the driver can drive his vehicle to a specific terminal. The management method according to the invention may comprise other characteristics that may be taken separately or in combination, and in particular: it may comprise a step c) in which the driver selects a terminal which has been determined for his vehicle in order to triggering a procedure for reserving that selected bound to his attention for a predetermined duration; - The reservation procedure can include assigning an access code to the selected terminal and transmitting the access code assigned to this selected terminal and to the driver, so that this selected terminal can be locked for the duration predetermined until it has received the assigned access code; - The assigned access code can be provided to the terminal selected by the driver during an input made by means of a human / machine interface that includes this selected terminal; alternatively, the assigned access code may be provided to the selected terminal when the vehicle is connected to a connection socket of this selected terminal; - It can be reported at a reserved terminal its unavailability following a reservation; - the reservation of a terminal may be authorized when the distance separating the vehicle from this terminal is less than a first predefined threshold and / or when the journey time of the vehicle to reach this terminal is less than a second predefined threshold ; the terminal availability criterion may be intended to determine each available terminal and each terminal to be available soon because the remaining charging time for another vehicle, which is still connected to it, is less than a third threshold; - the third threshold may vary depending on the distance between the vehicle and a terminal and / or the travel time of the vehicle to get to this terminal; - the journey time of the vehicle to get to a terminal can be estimated based on traffic information; the state of availability of each terminal can be determined by means of information provided by presence sensors; in step a), each adapted terminal can be determined according to a priority criterion; - when a terminal initially determined for a vehicle has become unavailable before the vehicle has reached its level, it can transmit to the driver of the vehicle, an alert message to signal the unavailability of this terminal initially determined; in step b) the response message may comprise data which are representative of the distance separating the vehicle from each determined terminal; the data representative of the place where a given terminal is located can be chosen from (at least) data defining an address and data defining geographic location coordinates; - when at least one new terminal, initially unavailable during a step a), became available before the vehicle has reached a terminal initially determined for it, it can be determined whether this new terminal is adapted to this vehicle according to its last known geographical position, the geographical position of this new terminal and the proximity criterion and / or the criterion of travel time to get to this new terminal, and, if this new terminal proves to be adapted, it can transmit a new response message, containing data representative of the location where this new terminal is determined, for said driver; - when the driver has previously reserved another terminal and decides to reserve a new terminal proposed, we can cancel the previous reservation so as to perform a new reservation procedure for this new terminal; step a) can be carried out by determining each terminal adapted to a vehicle among terminals which are located in at least one subarea which includes this vehicle and which constitutes a sub-part of a geographical area; when a driver wishes to book early for a chosen date a terminal located in a chosen sub-area, it is possible to determine a terminal located in this selected sub-area and available on this chosen date, then a procedure can be carried out. reservation for this terminal and substantially for that chosen date.

The invention also proposes a system dedicated to the management of recharging of electric vehicle batteries, of known geographical positions, to public charging stations, of known geographical positions, and suitable for implementing a management method of the type of presented above.

Other characteristics and advantages of the invention will appear on examining the following detailed description, and the accompanying drawings, in which: FIG. 1 diagrammatically and functionally illustrates, in a view from above, a geographical zone in which are located four service stations each equipped with a charging station offering one or two connection stations and connected to a management system, and - Figure 2 schematically and functionally illustrates an embodiment of charging terminal equipped with a exemplary embodiment of the first interface device and comprising a connection station to which is connected a vehicle equipped with an exemplary embodiment of the second interface device. The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any. The object of the invention is to provide a management method, and an associated management system, for enabling the management in a geographical area of the recharging of electric vehicle batteries (V, V '). In the following, we consider, by way of non-limiting example, that the electric vehicles (V, V ') are of automotive type. This is for example cars. But, the invention is not limited to this type of electric vehicle. It concerns any type of electric vehicle with batteries that can be recharged by public charging stations (BRi). It will be noted that the geographical position (possibly a GPS point) of each electric vehicle V (concerned by the invention) is considered here as determinable. FIG. 1 schematically shows a geographical area, such as a city, in which four service stations referenced by an index i are located. In this nonlimiting example, each service station is equipped with only one charging station BRi (i = 1 to 4). The charging terminals BR1 and BR4 have only a single connection station provided with a connector (or plug) connection CR adapted to be connected to a corresponding connection socket of a vehicle V, V ', while the BR2 and BR3 charging stations have two connection stations, each equipped with a connection terminal CR. Each connection station is associated with a charging space ERij located on one side of the corresponding charging terminal BRi and in which a vehicle V, V 'must park when it is necessary to recharge its batteries BA. The index j denotes here one of the connection stations of a charging terminal BRi. It will be noted that the geographical position (possibly a GPS point) of each charging terminal BRi is considered here as known.

Each of the charging terminals BRi is preferentially connected to a management unit EG via a communication network, possibly of the non-wired (or radio) type and possibly of the private type. We will understand further the interest of this connection. This management unit EG is part of a management system which also comprises first interface devices D1, associated with the various charging terminals BRi, and second interface devices D2, associated with the vehicles V, and on which one will come back later. It should be noted that the management unit EG comprises at least one central management computer providing centralized management of all the BRi charging stations located in a geographical area. This central management computer may possibly be connected to a tree of other management computers providing local management of at least a subset of BRi charging stations located in a sub-area (or sub-area) of this zone. geographical. The tree can have multiple levels. For example, a first level can group the management computers that are respectively associated with the different neighborhoods of each borough of a city, a second level can group the management computers that are respectively associated with different districts of a city , and a third level can group the management computers that are respectively associated with different regions of a city (which each group at least two districts). In this example, the third-level management computers are connected to the central management computer. This tree is intended to allow localized management and therefore faster reloads. According to one aspect, the invention proposes to implement a method dedicated to the management of recharging BA batteries of (electric) V vehicles to BRi public charging stations which are located in a given geographical area. This method comprises at least two steps (a) and (b). It can be implemented by means of a management system of the type of that presented above.

A first step (a) of the method is implemented when the management unit EG, which manages the BRi public charging stations located in the aforementioned geographical area, receives a message indicating that a driver wants to recharge the battery BA This message comes from equipment that is temporarily or permanently installed in the vehicle V considered. This equipment can be dedicated to the charging application, or it can be dedicated to several applications including the charging application. In the latter case, the equipment may, for example, be a navigation aid device (possibly GPS type), and therefore able, in particular, to calculate paths originating from the current position of the vehicle V and for destination a place distant from this origin. This equipment may include a dedicated member for triggering the search for BRi charging stations available, or an interface for moving in a menu to select a dedicated function to trigger the search for available BRi charging stations. Here is meant by triggering a search, generating a message to be transmitted to the management unit EG and a vehicle V which we want to reload (at least partially) BA batteries. The aforementioned equipment can be implanted (at least partially) in the onboard computer OB of the vehicle V or implanted in the latter (V) and coupled to its on-board computer OB, or it can be portable and placed in a where the passenger compartment of the vehicle V is easily accessible to the driver, such as the inside of the windscreen or the dashboard. In the nonlimiting example illustrated in FIG. 2, the equipment is a navigation aid module MAN which is located in the on-board computer OB and which comprises a processing module MT of a second device. D2 interface as part of the management system. But, other scenarios are possible. Thus, the navigation aid module MAN could be external to the on-board computer OB, while being coupled thereto (OB), and / or the processing module MT of a second interface device D2 could be external to the MAN navigation module, while being coupled to it (MAN). The term "processing module MT" here means a module, preferably a software module, which is responsible for controlling and managing the operations relating to the recharging of the batteries BA of the vehicle V in which it is implanted. It is in particular that it generates a message requiring the obtaining of data representative of the place where is located at least one BRi terminal available (or about to be) when the driver of his vehicle V requires it (by operating a dedicated organ or by selecting a function from a menu).

This message is then transmitted by waves by a transmission / reception module M1 which is implanted in the vehicle V, provides the communication interface with a wireless communication network coupled to the communication network to which the connection is connected. EG management set, and possibly part of the second local D2 interface device. It should be noted that in a variant, the transmission / reception module M1 could not be dedicated to the reloading application. Thus, it could be a telephone module implanted in the vehicle V. The message that is transmitted to the management unit EG may be, for example, an SMS. The first step (a) of the method consists in determining, among at least some of the terminals BRi of the geographical zone considered, at least one terminal which is adapted to the vehicle V concerned, as a function of the geographical position of this vehicle V, geographical positions of the terminals BRi, a terminal availability criterion and a proximity criterion and / or a duration criterion of travel to a terminal BRi. It will be understood that this first step (a) is implemented by a management computer of the management set EG, when it receives a message from a processing module MT of a second implanted interface device D2. in a vehicle V. This management unit EG must know the geographical positions (for example the GPS points) of all the terminals BRi located in the associated geographical area. In the presence of a tree management unit EG, it can be envisaged that the management computer, which manages the message from a vehicle V, is the one that manages the sub-area in which the vehicle V is located. it may also be the one at the next higher hierarchical level, if the vehicle V is located near a boundary between adjacent sub-areas. It is important to note that the management unit EG must know the current geographical position of the vehicle V which transmitted the message. For this purpose, the message that is generated by the processing module MT of the vehicle V may comprise data representative of the geographical position of the latter (V). They are for example provided by the MAN navigation aid module. But, alternatively, the geographical position of the vehicle V can be determined from the operator who manages the wireless network that was used to transmit the message. The availability criterion, which is used during each step (a), is preferably intended to determine not only each BRi terminal that is immediately available, but also each BRi terminal that will be available soon because the remaining charging time of the vehicle V 'which is still connected to one of its connection stations is less than a third threshold.

The state of availability of each connection station of each terminal BRi is known to the management unit EG through information regularly supplied by the various terminals BRi. To do this, each reloading space ERij of each terminal BRi can be equipped with at least one presence sensor CPj which is responsible for informing a computer M3 of this terminal BRi when a vehicle V is parked in the reloading area ERij associated. For example, each presence sensor CPj is a pressure sensor. The computer M3 is responsible for managing the recharging of the batteries BA of a vehicle V according to their characteristics, once the latter (V) has been connected to a connection station of this terminal BRi. He therefore knows how to estimate at each moment the remaining duration of recharging BA batteries of a vehicle V which is connected to a connection station of its terminal BRi. It will be noted that the third threshold may possibly vary as a function of the distance separating the vehicle V (having transmitted the message) from a terminal BRi and / or the travel time required for this vehicle V to reach a terminal BRi . It will be understood that the more a vehicle V is close to a terminal BRi, the more the third threshold must be small (in duration). It will also be noted that the travel time of the vehicle V to a terminal BRi may possibly be estimated according to traffic information which is provided by at least one information site. This makes it possible to obtain much more reliable estimates. It will also be noted that during each step (a) the management unit EG may optionally use a priority criterion, in addition to the other criteria mentioned above, to determine each terminal BRi adapted to a vehicle V. Any type of priority criterion may be considered. Thus, there may be priority levels that depend on the professional field associated with the vehicle V (the emergency services (firefighters, security or intervention personnel, medical personnel) being the highest priority), or the type of service. subscription to the reloading service that is associated with the vehicle V (in this case the most expensive subscription can ensure the highest priority level). It will also be noted that when several terminals BRi have been determined by the management set EG for a vehicle V, a list may be constituted, and the different terminals BRi may possibly be classified according to at least one criterion, such as, for example a proximity criterion in terms of distance and / or travel time. A second step (b) of the method consists in transmitting a response message containing data which is representative of the location where each terminal BRi determined in step (a) is located, intended for the driver concerned, so that the latter is informed and therefore can drive his vehicle V to a determined terminal BRi (designated in the response message).

It will be understood that this transmission can be done only if the message from the vehicle V comprises a communication identifier (for example a telephone number) associated with the transmission / reception module M1 which is implanted in this vehicle V, or to a wireless communication equipment that belongs to the driver of this vehicle V, such as his mobile phone. It will be noted that the data, which are contained in a response message and which are representative of the location where a specific terminal BRi is located, may be, for example, data defining the address of this terminal BRi or data defining parameters. coordinates of the geographical location of this terminal BRi (for example a GPS point). It will also be noted that the response message may optionally comprise complementary data which are representative of the distance separating the vehicle V considered from each determined terminal BRi. This makes it possible to better inform the driver. However, these distances can also be calculated by the processing module MT of the vehicle V from the data representative of the places where the determined terminals BRi are located, when it has access to the geographical position of its vehicle V (provided here by the module MAN navigation aid). The response message may be, for example, an SMS. When the transmission / reception module M1, which is located in a vehicle V, receives a response message from the management unit EG, it transmits it to the local processing module MT for processing. The latter (MT) extracts the useful data contained in this response message, possibly formatting them, and provides them to the driver, preferably by display on a screen implanted in the vehicle V (for example in the dashboard). It will be noted that it is possible to display either a list of address (es) or geographical position (s) of at least one determined terminal BRi with possibly the information of distance and / or corresponding estimated travel time. a map showing the traffic lanes of the sub-zone (or zone) containing each determined terminal BRi and the place where each determined terminal BRi is located, possibly along with the information of distance and / or estimated travel time corresponding. This last solution is particularly conceivable when the reloading application is coupled to a navigation aid application MAN. When several BRi terminals have been determined, the driver chooses one. If the reloading application is coupled to a navigation aid application MAN, the driver can select one of the determined terminals BRi, and the navigation aid application MAN calculates a path connecting the location where is located the vehicle V at the BRi terminal selected, and then conventionally guides the driver to this selected terminal BRi. The method according to the invention can also and optionally comprise a third step (c) in which the driver can select a terminal BRi which has been determined for his vehicle V (and which has been supplied to him in a response message) in order to trigger a procedure which is intended to reserve this selected terminal BRi for the driver for a predetermined duration. It will be understood that this reservation procedure is intended to guarantee the driver that a connection station will actually still be available for him when he reaches the selected terminal BRi. It will also be understood that the predetermined duration, during which a selected terminal BRi remains reserved (and therefore not usable by a third party), is intended to prevent a connection station remains unusable for a long time because a driver who The driver did not show up to recharge the batteries in his V vehicle. In other words, the goal is not to penalize too much the other drivers who do not have the reservation function.

When the driver selects a terminal BRi, for example by pressing the area of the touch screen where it is displayed, the local processing module MT generates a reservation message comprising at least data representative of this selected terminal BRi, as well as possibly the communication identifier of the transmission / reception module M1 (or the mobile phone of the driver), then it communicates this reservation message to the transmission / reception module M1 so that it transmits it to the set of EG management. The reservation message that is transmitted to the management unit EG may be, for example, an SMS.

For example, the reservation procedure may include the allocation to the terminal BRi that has been selected by the management set EG of an access code and then the transmission by the management set EG of this access code assigned to the driver and to this selected terminal BRi. Thus, when the selected terminal BRi receives the access code, it locks for the entire predetermined duration and it can unlock only if it provides the assigned access code (previously received). The term "lock" here means making it impossible to recharge the batteries BA of a vehicle V by means of a connection station of a terminal BRi. For a terminal BRi to receive an assigned access code, it must have a communication module M2, possibly wireless, connected to a communication network. This communication module M2 may possibly be part of the first interface device D1 which is dedicated to the charging application within a terminal BRi. When the communication module M2 receives the access code, it communicates it to a processing module MT 'that includes the first local interface device D1, so that it locks a connection station of the terminal BRi by triggering a delay on the predetermined time. It will be noted, as shown not only, that the processing module MT 'may possibly be part of the computer M3 that includes the terminal BRi. It is recalled that the characteristics of the batteries BA of a vehicle V can be supplied to the computer M3 of a terminal BRi by a computer M4 of the vehicle V, which is coupled to the batteries BA and to the on-board computer OB, for example via a carrier current management module M5 of the vehicle V and a current management module M6 of the terminal BRi, when the vehicle V is connected to a connection station of this terminal BRi.

The M4 computer is responsible for managing the batteries BA of the vehicle V. It can therefore communicate the capacity of the batteries BA, the charging power that the batteries BA can withstand, taking into account their state of charge and their temperature, as well as the state of charge of BA batteries, in particular. Thanks to these characteristics of the batteries BA of a vehicle V, the computer M3 of a terminal BRi will be able to determine the charging mode of the batteries BA, then estimate the duration of the recharge and therefore the time at which the driver will be able This last information is then displayed on an MA screen, which includes the terminal BRi and which is coupled to the computer M3. Then, the processing module MT 'of the terminal BRi can send a message to the management unit EG to inform it of the estimated duration of the recharge. This message that is transmitted to the management unit EG may be, for example, an SMS.

Several solutions can be envisaged to provide an access code assigned to a selected terminal BRi which has locked on this access code. Thus, it can be provided by the driver who obtained it during an input manually made by means of a human / machine interface CL that includes the selected and reserved terminal BRi. This human / machine interface CL can be, for example, the alphanumeric keyboard which is used by the driver to provide the terminal BRi the code of his credit card which is inserted into a module MLI that it (BRi) includes and which is dedicated reading cards and printing tickets.

In a variant, the assigned access code may be provided to the selected and reserved terminal BRi when the vehicle V is connected to an electrical socket CR of a connection station of this terminal BRi. In this case, the supply of the access code to the processing module MT 'of the terminal BRi can for example be done either by means of a communication established by way of waves between the transmission / reception module M1 of the vehicle V and the communication module M2 of the terminal BRi, at the initiative of the processing module MT of the vehicle V, or by wire communication, for example by the technique of the carrier currents via the power-handling modules M5 and M6 of the vehicle V and the terminal BRi, at the initiative of the processing module MT of the vehicle V (and via the computer M4 of the vehicle V). In the latter case, the access code can be provided at the same time as the characteristics of the BA batteries. It should be noted that it is preferable to equip each terminal BRi with a signaling means VL, coupled to the processing module MT 'and intended to signal locally that it is unavailable following a reservation. For example, this signaling means VL may be an indicator light which is continuously lit when a connection station of the terminal BRi is unavailable, and which flashes when a connection station of the terminal BRi is about to become available . This signaling means VL may possibly be part of the first interface device D1. Note also that it is preferable for the management unit EG to authorize the reservation of a terminal BRi only when the distance separating a vehicle V from this terminal BRi is less than a first predefined threshold and / or when the traveling time of this vehicle V to get to this terminal BRi is less than a second predefined threshold. This option is intended to prevent a reserved connection station remains unusable for a long time because the vehicle V concerned is remote (in time and / or distance) from the reserved terminal BRi. In other words, the goal is not to penalize too much the other drivers who do not have the reservation function. Note that in the absence of a reservation procedure, whenever a BRi terminal, which has been determined for a vehicle V, became unavailable before the vehicle V has reached its level, the management set EG can transmit, to the driver of this vehicle V (and more specifically to the transmission / reception module M1 of the latter (V)), an alert message to signal the unavailability of this terminal BRi initially determined. This option is intended to warn the driver to choose to go to another BRi 'terminal that was previously determined to his attention, assuming he was heading to the BRi terminal that became unavailable. The alert can be displayed on the vehicle screen V and / or broadcast in the form of a synthetic voice message using the speakers of the vehicle V. This alert message can be, for example, an SMS or a synthetic voice message. Moreover, it may happen that at least one new terminal BRi, which was initially unavailable during a determination made during a step (a), becomes available before the vehicle V concerned by this determination has reached the level of a terminal BRi determined for him. In order to take into account this type of situation (both in the absence and in the presence of a reservation procedure), the management unit EG can be arranged to determine if this new terminal BRi is adapted to the vehicle V considered. , according to the last known geographical position of this vehicle V, the geographical position of this new terminal BRi and the proximity criterion and / or the criterion of travel time to get to this new terminal BRi. If so, the management unit EG may transmit a new response message, containing (at least) data representative of the place where this new determined terminal BRi is located, for the driver of the vehicle V. The data defining the new terminal BRi can be displayed on the vehicle screen V and / or broadcast in the form of a synthetic voice message by means of the speakers of the vehicle V. This response message can be, for example, an SMS. If the driver had previously reserved another terminal BRi 'and decides to reserve a new terminal BRi just reported, 1 o for example by pressing the area of the screen where it is displayed, the processing module Local MT generates a new reservation message comprising at least data representative of this selected terminal BRi, as well as possibly the communication identifier of the transmission / reception module M1 (or the mobile telephone of the driver), then communicates this reservation message to the transmission / reception module M1 so that it transmits it to the management unit EG. The latter (EG) will then cancel the previous reservation of the terminal BRi ', then perform a new reservation procedure for this new terminal BRi. The management unit EG assigns this selected new terminal 20 BRi an access code, then it transmits this access code assigned to the driver concerned and to this selected terminal BRi. It should be noted that it is also possible for a driver to pre-book, for a chosen date, a terminal which is located in a selected sub-area of a geographical area. If the driver does not have the reservation function, he will have to go to a BRi terminal in order to make a reservation with the management unit EG via the human / machine interface CL of this terminal. BiS. The driver supplies to the processing module MT 'of the terminal BRi the selected reservation date and the definition of the selected sub-area of a geographical area (or of a specific terminal BRi) where it wants to recharge the batteries BA of its vehicle V. The local processing module MT 'then generates a reservation message comprising at least data representative of the selected sub-area (or a specific terminal BRi), as well as possibly the communication identifier of its M2 communication module, then it communicates this reservation message to the M2 communication module so that it transmits to the EG management set. The management unit EG will then determine a terminal BRi '(with i' possibly equal to i) located in the sub-area chosen by the driver by means of the human / machine interface CL and available on the date chosen by the driver via the CL man / machine interface. Then, the management unit EG will assign an access code to this determined terminal BRi 'and transmit, on the one hand, this access code and the reservation date to this determined terminal BRi', and, d ' on the other hand, the access code to the BRi terminal where the reservation is made. The processing module MT 'of the terminal BRi' will then program the reservation locally for the predetermined date provided, and the processing module MT 'of the terminal BRi controls the generation, by the local reading and printing module MLI, a ticket on which are registered the access code assigned, data representative of the location where the terminal is reserved BRi ', and the date of reservation. If the driver has the reservation function, he provides the processing module MT of his vehicle V, for example by means of a man / machine interface, the reservation date chosen and the definition of the chosen sub-area. a geographical area (or a specific BRi terminal) where it wants to recharge the BA batteries of its vehicle V. The local processing module MT then generates a reservation message comprising at least data representative of the selected sub-area (or a specific BRi terminal), as well as possibly the communication identifier of the transmission / reception module M1 (or the mobile phone of the driver), then it communicates this reservation message to the transmission / reception module M1 so it transmits it to the EG management set. The management unit EG will then determine a terminal BRi '(with i' possibly equal to i) located in the sub-zone chosen by the driver and available on the date chosen by this driver. Then, the management unit EG will assign an access code to this determined terminal BRi 'and transmit, on the one hand, this access code and the reservation date to this determined terminal BRi', and, d ' on the other hand, the access code to the transmission / reception module M1 of the vehicle V concerned. The processing module MT 'of the terminal BRi' will then program the reservation locally for the predetermined date provided, and the processing module MT will cause the display on a screen of the vehicle V of the access code, data representative of the where is the reserved terminal BRi ', and the date of reservation. In either case, the reservation will preferably be valid only for a predetermined period of time from the date of reservation chosen by the driver.

Note that in order to encourage drivers to pick up their vehicle V just after the recharging of their BA batteries is finished, the terminals BRi can be arranged to apply a tax (or penalty of delay) to the billing of reloading, in the event of exceeding the charging end time, initially estimated and initially provided to the driver, greater than a predefined threshold (for example of the order of five minutes). The amount of this tax may be possibly proportional to the duration of the overrun of the estimated initial charging time. As a variant or in addition, the terminals BR 1 and / or the management unit EG can be arranged to address the mobile phone of a driver, who has left to recharge the batteries BA of his vehicle V at a terminal BRi, a message to indicate that the reloading is completed and therefore he must immediately come to find his vehicle V to release the space occupied ERij. This message may be, for example, a predetermined content SMS, or a predetermined content synthesis voice message. To do this, the driver can be initially invited by the BRi terminal to which he has connected his vehicle V to provide the communication identifier of his mobile phone using the keyboard CL. The invention is not limited to the embodiments of management method and management system described above, only by way of example, but it encompasses all the variants that can be considered by those skilled in the art in the the scope of the claims below.

Claims (17)

REVENDICATIONS1. Method for managing the recharging of batteries (BA) of electric vehicles (V), of determinable geographical positions, at public charging stations (BRi), of known geographical positions, characterized in that it comprises the following steps upon reception of a message indicating that a driver wants to recharge the battery (BA) of his vehicle (V): a) determining among at least some of said terminals (BRi) at least one terminal adapted to said vehicle (V) according to the geographical positions of said vehicle (V) and said terminals (BRi), a terminal availability criterion and a proximity criterion and / or a criterion of travel time to go to a terminal (BRi), b) transmit a response message, containing data representative of the location where each terminal (BRi) determined, to said driver, so that the latter can drive his vehicle (V) to a terminal (BRi) determined. 2. Method according to claim 1, characterized in that it comprises a step c) wherein said driver selects a terminal (BRi) determined for his vehicle (V) to trigger a procedure for reserving this selected terminal (BRi) for said driver for a predetermined time. 3. Method according to claim 2, characterized in that said procedure comprises the assignment of an access code to said selected terminal (BRi) and the transmission to said selected terminal (BRi) and said driver of said access code. allocated, so that said selected terminal (BRi) can be locked during said predetermined time until it has received said assigned access code. 4. Method according to claim 3, characterized in that said assigned access code is supplied to said selected terminal (BRi) by said driver during an input made by means of a man / machine interface that includes this selected terminal. (BIS). 5. Method according to claim 3, characterized in that said assigned access code is provided to said selected terminal (BRi) during the connection of said vehicle (V) to a connection socket of this selected terminal (BRi). 6. Method according to one of claims 2 to 5, characterized in that it allows the reservation of a terminal (BRi) when the distance separating said vehicle (V) of this terminal (BRi) is less than a first predefined threshold and / or when the travel time of said vehicle (V) to get to this terminal (BRi) is less than a second predefined threshold. 7. Method according to one of claims 1 to 6, characterized in that said terminal availability criterion is intended to determine each terminal (BRi) available and each terminal (BRi) to be available soon because the charging time remaining for another vehicle (V '), which is still connected to it, is less than a third threshold. 8. Method according to claim 7, characterized in that said third threshold varies according to the distance separating said vehicle (V) from a terminal (BRi) and / or the travel time of said vehicle (V) to go at a terminal (BRi). 9. Method according to one of claims 6 and 8, characterized in that said travel time of said vehicle (V) to a terminal (BRi) is estimated according to traffic information. 10. Method according to one of claims 1, 7 and 9, characterized in that, when a terminal (BRi) determined for a vehicle (V) became unavailable before said vehicle (V) has reached its level a warning message is sent to said driver of this vehicle (V) signaling the unavailability of this terminal (BRi) initially determined. 11. Method according to one of claims 1 to 10, characterized in that in step b) said response message comprises data representative of the distance separating said vehicle (V) from each determined terminal (BRi). 12. Method according to one of claims 1 to 11, characterized in that said data representative of the location where is located a specific terminal (BRi) are selected from a group comprising at least data defining an address and data defining coordinates of geographical location. 13. Method according to one of claims 1 to 12, characterized in that, when at least one new terminal (BRi), initially unavailable during a step a), became available before said vehicle (V) has reached the level of a terminal (BRi) determined for it, it is determined whether this new terminal (BRi) is adapted to said vehicle (V) according to the last known geographical position of said vehicle (V), the geographical position of this new terminal (BRi) and said proximity criterion and / or said criterion of travel time to get to this new terminal (BRi), and if this new terminal (BRi) proves to be suitable, a new response message is transmitted , containing data representative of the place where this new terminal (BRi) is located, intended for said driver. 14. Method according to one of claims 2 to 6 in combination with claim 13, characterized in that when the driver has previously reserved another terminal (BRi ') and decides to reserve said new terminal (BRi), the previous reservation is canceled so as to perform a new reservation procedure for said new terminal (BRi). 15. Method according to one of claims 1 to 14, characterized in that it performs said step a) by determining each terminal (BRi) adapted to a vehicle (V) among terminals which are located in at least one sub-area encompassing said vehicle (V) and constituting a sub-part of a geographical area. 16. Method according to one of claims 1 to 15, characterized in that, when a driver wants to book early for a chosen date a terminal (BRi) located in a chosen sub-area, a terminal is determined (BRi ) located in said chosen subarea and available on said chosen date, then a reservation procedure is performed for this terminal (BRi) and substantially for said chosen date. 17. System for managing the recharging of batteries (BA) of electric vehicles (V), of known geographical positions, at public charging stations (BRi), of known geographical positions, characterized in that it is suitable for use a management method according to one of the preceding claims.