DE102019119554A1 - Control unit and method for supporting a user when charging the energy store of a vehicle - Google Patents

Abstract

A control unit (101) for a vehicle (100) with an electrical energy store is described. The control unit (101) is set up to determine that a charging process for charging the energy store of the vehicle (100) is carried out at a specific charging station from a plurality of charging stations. Furthermore, the control unit (101) is set up to determine setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station. The control unit (101) is also set up to cause the setting data to be stored in connection with the specific charging station in such a way that the setting data can be used for a subsequent charging process for charging the energy store of the vehicle (100) at the specific charging station.

Description

The invention relates to an at least partially electrically powered vehicle. In particular, the invention relates to a control unit and a corresponding method that support a user of the vehicle during a charging process for charging the electrical energy store of the vehicle.

An at least partially electrically driven vehicle has an electrical energy store, in particular an electrochemical energy store, for example a lithium-ion-based energy store, which is set up to store electrical energy for the operation of an electrical drive machine of the vehicle.

The electrical energy store of the vehicle can be charged at a large number of different private and / or public charging stations which are arranged at different points or positions on a road network. Furthermore, different charging modes and / or charging settings can typically be selected for a charging process at a charging station. For example, it can be made possible for a user to select a specific time window for a charging process and / or to select a specific target state of charge (in particular a specific state of charge (SOC)).

The selection of a charging mode and / or the charging settings desired in each case can be relatively complex or laborious for a user. Furthermore, when defining a charging mode and / or a charging setting, errors can occur, which, for example, can result in the vehicle's energy storage device not being charged as desired.

The present document deals in particular with the technical task of increasing the convenience for a user in relation to the implementation of charging processes at different charging stations.

The object is achieved in each case by the independent claims. Advantageous embodiments are described in the dependent claims, among others. It is pointed out that additional features of a patent claim dependent on an independent patent claim without the features of the independent patent claim or only in combination with a subset of the features of the independent patent claim can form a separate invention independent of the combination of all features of the independent patent claim, which can be made the subject of an independent claim, a divisional application or a subsequent application. This applies equally to the technical teachings described in the description, which can form an invention that is independent of the features of the independent patent claims.

According to one aspect, a control unit for a vehicle with an electrical energy store is described. The vehicle can include an electric drive motor which is set up to be operated with electrical energy from the energy store (e.g. an electrochemical energy store). The control unit is set up to determine that a charging process for charging the energy storage device of the vehicle is carried out at a specific charging station from a plurality of charging stations. The plurality of charging stations can be arranged at a corresponding plurality of different positions in a road network in which the vehicle is moving. The road network can be described by digital map information. The digital map information can also display the individual charging stations within the road network.

The control unit can be set up to determine position data in relation to the position at which the charging process is carried out. The position data can be determined with a position sensor (e.g. with a GPS receiver) of the vehicle. The specific charging station from the plurality of charging stations can then be identified in a reliable manner on the basis of the position data and on the basis of the digital map information.

Furthermore, the control unit can be set up to determine setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station. In other words, it can be determined how the charging process is carried out at the specific charging station.

The setting data can in particular indicate the charging mode from a plurality of different charging modes which is used for the charging process at the specific charging station. The plurality of different charging modes can include: a first charging mode, in which charging takes place immediately until a specific target charge state of the energy store is reached; a second charging mode in which charging takes place in a defined time window; a third charging mode, in which charging is carried out in order to improve a specific optimization criterion for the charging process (for example charging that is as inexpensive as possible or charging with as much renewable energy as possible); and / or a fourth charging process, which is designed to achieve a required cumulative charging time on a route during which due to a limited capacity of the Energy storage several charging processes are required to reduce.

Alternatively or additionally, the setting data can display values for one or more charging settings that are used for the charging process at the specific charging station. The one or more charging settings can include: a desired maximum duration of charging; a desired end time of the charging process; a target state of charge of the energy store at the end of the charging process; and / or a charging power that is used during the charging process.

In addition, the control unit is set up to cause the setting data to be stored in connection with the specific charging station in such a way that the setting data can be used for a subsequent charging process for charging the energy store of the vehicle at the specific charging station. In a preferred example, the control unit can be set up to store the setting data for the specific charging station in connection with the digital map information. The setting data can e.g. be stored in a setting data record in connection with the specific charging station.

In particular, the control unit can be set up to determine setting data in a plurality of charging processes at different charging stations and to store them in connection with the respective charging station in order to determine and store a list of charging stations, with each of the charging stations from the list of charging stations historical setting data for one or more previous charging processes of the vehicle are available. The list of charging stations can include a subset of the charging stations available in the road network. The historical setting data available for the charging stations from the list of charging stations can then be used to increase the convenience for a user during a subsequent charging process at the respective charging station.

The control unit can be set up to determine whether a setting data record with historical setting data for one or more previous charging processes of the vehicle at the specific charging station has already been stored for the specific charging station. If it is determined that a setting data record has already been saved, the setting data record can be updated with the determined setting data for the (current) loading process. If it has been determined that no setting data set has yet been saved, a setting data set can be created on the basis of the setting data determined and stored in connection with the specific charging station (e.g. as part of the digital map information). In this way, the historical setting data for previous charging processes can be stored in a particularly efficient and reliable manner and made available for a subsequent charging process.

The control unit can be set up to determine that a subsequent charging process should be carried out at the specific charging station. In response to this, the setting data stored for the specific charging station can then be determined. For example, the stored setting data can be read out from the digital map information.

Furthermore, the control unit can be set up to determine a proposal for a charging mode and / or for one or more charging settings for the subsequent charging process at the specific charging station as a function of the stored setting data. The suggestion can, for example, correspond to the saved setting data or be identical to the saved setting data.

The control unit can also be set up to cause the suggestion to be output to the user of the vehicle via a user interface (in particular via a user interface of the vehicle). For example, the proposal can be displayed on a screen.

In this way, the convenience for the user of the vehicle when carrying out a charging process can be increased.

The control unit can be set up to cause the subsequent charging process to be carried out in accordance with the proposal if it is recognized via the user interface that the user accepts the proposal or that the user does not contradict the proposal. Alternatively or in addition, the control unit can be set up to cause the subsequent charging process (possibly automatically) to be carried out according to a standard variant for charging processes if it is recognized via the user interface that the user objects to the suggestion. The standard variant can, for example, cause immediate charging with a maximum possible charging power up to a maximum possible charging state of the energy storage device. The above measures can further increase the convenience of the user when carrying out a charging process.

According to a further aspect, a (further or the same) control unit for a vehicle with an electrical energy store is described. The above features can also be applied to this control unit (and vice versa).

The control unit can be set up to determine that a charging process is to be carried out at a specific charging station from a plurality of different charging stations. For this purpose, position data relating to a (current) position of the vehicle can be determined. The specific charging station from the plurality of different charging stations can then be identified on the basis of the position data and on the basis of digital map information, the digital map information indicating a plurality of positions of the corresponding plurality of charging stations in a road network.

Furthermore, in response to the detection of a possible charging process at the specific charging station, the control unit is set up to assign stored setting data relating to a charging mode and / or relating to one or more charging settings for a charging process at the specific charging station from a list of charging stations determine. The list of charging stations for each charging station can display historical setting data for one or more previous charging processes of the vehicle at the respective charging station.

In addition, the control unit is set up to determine a proposal for a charging mode and / or for one or more charging settings for the charging process at the specific charging station as a function of the stored setting data. It can then be arranged that the suggestion is output to a user of the vehicle via a user interface (e.g. of the vehicle). In this way, the convenience for carrying out a charging process can be increased.

The control unit can be set up to determine on the basis of the position data that the vehicle is entering a predefined radius (e.g. of 1 km or less) around the specific charging station. In response to this, the suggestion can then be made to be output to the user of the vehicle via the user interface (possibly even if the vehicle has not yet reached the specific charging station). A proposal for settings for a possible charging process at the specific charging station can thus be determined and displayed at an early stage. In this way, the comfort for the user of the vehicle can be further increased.

According to a further aspect, a road motor vehicle (in particular a passenger car or a truck or a bus or a motorcycle) is described which comprises the control unit described in this document.

According to one aspect, a method for storing setting data for a charging process of an electrical energy store of a vehicle is described. The method comprises determining that a charging process for charging the energy storage device of the vehicle is being carried out at a specific charging station from a plurality of charging stations. Furthermore, the method comprises the determination of setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station. The method further comprises causing the setting data to be stored in connection with the specific charging station in such a way that the setting data can be used for a subsequent charging process for charging the energy store of the vehicle at the specific charging station.

According to a further aspect, a method for supporting a user of a vehicle in a charging process for charging an electrical energy store of the vehicle is described. The method comprises determining that a charging process is to be carried out at a particular charging station from a plurality of different charging stations. The method further comprises, in response thereto, determining stored setting data relating to a charging mode and / or relating to one or more charging settings for a charging process at the specific charging station from a list of charging stations, the list of charging stations for each Charging station displays historical setting data for one or more previous charging processes of the vehicle at the respective charging station. The method further comprises determining a proposal for a charging mode and / or for one or more charging settings for the charging process at the specific charging station as a function of the stored setting data. The method also includes causing the suggestion to be output to the user of the vehicle via a user interface.

According to a further aspect, a software (SW) program is described. The software program can be set up to be executed on a processor (for example on a control unit of a vehicle) and thereby to execute one of the methods described in this document.

According to a further aspect, a storage medium is described. The storage medium can comprise a software program which is set up to be executed on a processor and thereby to execute one of the methods described in this document.

It should be noted that the methods, devices and systems described in this document can be used both alone and in combination with other methods, devices and systems described in this document. Furthermore, any aspects of the methods, devices and systems described in this document can be combined with one another in diverse ways. In particular, the features of the claims can be combined with one another in diverse ways.

• 1a beispielhafte Komponenten eines Fahrzeugs;
• 1b eine beispielhafte Bildschirmausgabe eines Vorschlags in Bezug auf einen Ladevorgang;
• 2 eine beispielhafte Fahrroute eines Fahrzeugs;
• 3a ein Ablaufdiagramm eines beispielhaften Verfahrens zur Ermittlung und Speicherung von Einstellungsdaten für einen Ladevorgang an einer Ladestation; und
• 3b ein Ablaufdiagramm eines beispielhaften Verfahrens zur Unterstützung eines Nutzers bei der Durchführung eines Ladevorgangs.

The invention is described in more detail below on the basis of exemplary embodiments. Show it

• 1a exemplary components of a vehicle;
• 1b an exemplary screen display of a proposal relating to a loading process;
• 2 an exemplary travel route of a vehicle;
• 3a a flowchart of an exemplary method for determining and storing setting data for a charging process at a charging station; and
• 3b a flowchart of an exemplary method for supporting a user in carrying out a charging process.

As stated at the beginning, the present document deals with the support of a user of a vehicle when carrying out charging processes at different charging stations. In this context shows 1a exemplary components of a vehicle 100 . The vehicle 100 includes a loading unit 102 , which is set up, information relating to an electrical energy store (not shown) of the vehicle 100 and / or in relation to a charging process of the energy store. For example, the loading unit 102 be set up to determine the current state of charge of the energy store. Furthermore, the loading unit 102 be set up to determine a charging mode and / or one or more charging settings that are used for a charging process for charging the energy store.

The vehicle also includes 100 a position sensor 104 , which is set up, position data relating to a current position of the vehicle 100 capture. For example, the position sensor 104 be set up the current GPS coordinates of the vehicle 100 to investigate.

• • den Lademodus anzeigen, der für den Ladevorgang verwendet wird. Beispielhafte Lademodi sind: ein erster Lademodus, bei dem sofort geladen wird, bis ein bestimmter Ziel-Ladezustand erreicht ist; ein zweiter Lademodus, bei dem in einem definierten Zeitfenster geladen wird; ein dritter Lademodus, bei dem geladen wird, um ein bestimmtes Optimierungskriterium zu verbessern (wie z.B. die kumulierten Kosten für den Ladevorgang, oder die Menge an elektrischer Energie aus einer Photovoltaikanlage); und/oder ein vierter Ladevorgang, der darauf ausgelegt ist, die erforderliche Ladezeit auf einer längeren Fahrstrecke zu reduzieren.
• • ein oder mehrere Ladeeinstellungen anzeigen, die für den Ladevorgang verwendet werden. Beispielhafte Ladeeinstellungen sind: die gewünschte Abfahrtszeit, der Ziel-Ladezustand, die gewünschte Ladeleistung, etc.

A control unit 101 of the vehicle 100 can be set up based on that of the loading unit 102 information provided to determine that the vehicle is 100 performs a loading process. In addition, setting data relating to the charging process can be determined. The setting data can

• • View the charging mode that is being used for charging. Exemplary charging modes are: a first charging mode in which charging is carried out immediately until a specific target charging state is reached; a second charging mode in which charging takes place in a defined time window; a third charging mode, in which charging is carried out in order to improve a specific optimization criterion (such as the cumulative costs for the charging process or the amount of electrical energy from a photovoltaic system); and / or a fourth charging process which is designed to reduce the required charging time on a longer journey.
• • show one or more load settings that are used for the load process. Exemplary charging settings are: the desired departure time, the target state of charge, the desired charging power, etc.

Furthermore, the control unit 101 be set up to determine the position at which the charging process is carried out on the basis of the position data. Furthermore, the control unit 101 be set up to access digital map information that indicates a plurality of available charging stations on a road network. The control unit 101 can be set up to identify the charging station at which the charging process is carried out on the basis of the position data and on the basis of the digital map information. Furthermore, the control unit 101 be set up to store a setting data set for the identified charging station, the setting data set indicating the setting data used for the charging process. The setting data record can be stored in a storage unit 103 of the vehicle 100 get saved. As an alternative or in addition, the settings data record can be saved in a backend server.

It can thus be used during the operation of a vehicle 100 a list of setting data sets for different charging stations can be stored in a road network. The setting data record for a charging station shows the setting data for a charging process from the vehicle 100 carried out at the charging station has been. The list of setting data records for different charging stations can be specific to the vehicle 100 determined and saved. In other words, for different vehicles 100 different lists can be determined and saved.

Based on vehicle charging processes that have already been carried out 100 created list of charging stations can be used for the user of the vehicle 100 assist in carrying out an upcoming charging process. In particular, the control unit 101 be set up on the basis of the position data of the position sensor 104 to determine that the vehicle 100 is located at the position of a charging station or is approaching the position of a charging station for which there is a setting record in the list of charging stations.

For example, the control unit 101 be set up a driving route 200 of the vehicle 100 from a starting point 201 to a destination point 202 to be determined (see 2 ). The driving route 200 can for example by means of a navigation system of the vehicle 100 have been planned, wherein the navigation system can be set up to access the digital map information in relation to the road network in which the vehicle is 100 emotional. The target point 202 can possibly correspond to a charging station, and the control unit 101 can be set up to detect that the vehicle is moving 100 in a certain radius 203 from the charging station.

Furthermore, the control unit 101 be set up, based on the setting data set for the determined charging station a proposal 111 for a charging mode and / or for one or more charging settings for a charging process at the determined charging station (see 1b) . The suggestion 111 can be presented to the user via a user interface 105 of the vehicle 100 are issued. In particular, the proposal 111 on a screen 115 the user interface 105 are displayed.

The user interface 105 can be set up to enable the user to submit the proposal 111 to be accepted, for example by actuating a (possibly virtual) control element 112 . Furthermore, the user interface 105 be set up to enable the user to submit the proposal 111 to refuse, for example by operating a (possibly virtual) control element 113 . If the proposal 111 is rejected, a standard mode and / or one or more standard settings can be used for the loading process. On the other hand, if the proposal 111 is accepted, the proposed charging mode and / or the one or more proposed charging settings from the settings data set of the charging station can be used for the charging process.

It thus becomes a charging setting coordinator 101 which records already completed charging processes with GPS positions and charging settings that differ from a standard variant of a charging process. The positions of the charging stations can be stored locally on a storage unit together with the setting data for the respective charging processes 103 and / or stored on a backend server. It can then be done by the charging settings coordinator 101 and / or monitored by the backend server whether the vehicle is 100 approaches one of the stored positions of a charging station. If so, a suggestion can be made 111 can be determined for a charging mode and / or for one or more charging settings for a future charging process. In particular, a charging plan can be determined which, for example, indicates the charging power as a function of time. The charging plan can depend on the setting data saved for the charging station. The suggestion 111 (possibly with the charging plan) can then be displayed on the screen 115 the user interface 105 of the vehicle 100 are displayed. It can then be made possible for the user to make the suggestion if necessary 111 adapt. On the other hand, the proposal can 111 in response to a confirmation by the user or, if applicable, automatically (if applicable without an input by the user being required)

If no setting data can be determined for a charging station in relation to a previous charging process, the suggestion can be 111 include a standard variant for the upcoming charging process. The standard variant can include, for example, immediate charging with the maximum possible charging power until a 100% SOC is reached.

The coordinator described in this document 101 can thus manage a list of charging stations for which a charging setting that deviates from the standard variant has already been used. The position of a charging station from the list of charging stations can be a certain radius or perimeter 203 (approx. 800m). With this radius specification, the list can be registered with a geofence microservice. When falling below the radius 203 through the vehicle 100 can the coordinator 101 get a trigger, and the coordinator 101 can then actively submit a proposal 111 for a charging process.

3a shows a flow diagram of an exemplary method 300 for storing setting data for a loading process of a electrical energy storage of a vehicle 100 . The procedure 300 can through a control unit 101 (also referred to as the coordinator in this document) of the vehicle 100 are executed.

The procedure 300 includes determining 301 that at a specific charging station from a large number of charging stations, a charging process for charging the energy storage device of the vehicle 100 is carried out. The plurality of charging stations can be arranged at a corresponding plurality of positions in a road network. On the basis of the position of the specific charging station, it can be recognized that the energy store of the vehicle is being charged at the specific charging station.

The method also includes 300 determining 302 of setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station. In other words, it can be determined how the charging process is carried out at the specific charging station. In particular, one or more charging settings can be determined that were set by the user for the charging process at the specific charging station (and which may differ from a standard variant for charging processes).

The procedure 300 also includes causing 303 that the setting data are stored in connection with the specific charging station in such a way that the setting data for a subsequent charging process for charging the energy store of the vehicle 100 can be used at the specific charging station. For example, a list of charging stations can be created and / or updated, the list showing the historical setting data for each charging station that occurred during one or more charging processes of the vehicle 100 used at the respective charging station.

Over time, the setting data for several different charging stations in a road network can thus be determined that are already used for charging the vehicle 100 were used. This setting data can then be used as default settings for a subsequent charging process at the respective charging station. So can the comfort for a user of the vehicle 100 increase.

3b shows a flow diagram of an exemplary method 310 to support a user of a vehicle 100 during a charging process for charging an electrical energy store of the vehicle 100 . The procedure 310 can be combined with the procedure 300 be used. The procedure 310 can through a control unit 101 of the vehicle 100 are executed.

The procedure 310 includes determining 311 that a charging process should be carried out at a specific charging station from a large number of different charging stations. The plurality of charging stations can be arranged at different positions in a road network in which the vehicle is located 100 emotional. The specific charging station at which a charging process is to be carried out can, for example, be based on the position data relating to the position of the vehicle 100 be determined. In particular, it can be determined which charging station from the large number of charging stations is at or near the current position of the vehicle 100 is located.

The procedure 310 further comprises, in response to the determination that a charging operation should be performed at the particular charging station, determining 312 of stored setting data in relation to a charging mode and / or in relation to one or more charging settings for a charging process at the specific charging station from a list of charging stations. The list of charging stations for each charging station can contain historical setting data for one or more previous charging processes of the vehicle 100 at the respective charging station. The list of charging stations may include a subset of the plurality of charging stations in the road network.

The method also includes 310 determining 313 of a proposal 111 for a charging mode and / or for one or more charging settings for the charging process at the specific charging station, depending on the stored setting data. In particular, the charging mode indicated by the stored setting data and / or the one or more indicated charging settings can be used as a suggestion 111 be determined.

The procedure 310 further includes causing 314 that the proposal 111 via a user interface 105 to the user of the vehicle 100 is issued. In particular, the proposal 111 on a screen 115 displayed (e.g. as a goodbye ad when the user leaves the vehicle 100 leaves). The user can then submit the proposal 111 (possibly implicitly), or the user can accept the proposal if necessary 111 modify or reject.

The measures described in this document can increase the convenience for a user when carrying out charging processes. Furthermore, the reliability of carrying out charging processes can be increased, in particular since incorrect entries or incorrect charging settings can be avoided.

The present invention is not restricted to the exemplary embodiments shown. In particular, it should be noted that the description and the figures are only intended to illustrate the principle of the proposed methods, devices and systems.

Claims (14)

Control unit (101) for a vehicle (100) with an electrical energy store; wherein the control unit (101) is set up, - to determine that a charging process for charging the energy storage device of the vehicle (100) is carried out at a specific charging station from a plurality of charging stations; To determine setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station; and - To cause the setting data to be stored in connection with the specific charging station in such a way that the setting data can be used for a subsequent charging process for charging the energy store of the vehicle (100) at the specific charging station. Control unit (101) according to Claim 1 , wherein the control unit (101) is set up to determine position data in relation to a position at which the charging process is carried out; and - to identify the particular charging station on the basis of the position data and on the basis of digital map information; wherein the digital map information indicates a plurality of locations of the corresponding plurality of charging stations on a road network. Control unit (101) according to one of the preceding claims, wherein the control unit (101) is set up to store the setting data for the specific charging station in connection with digital map information; wherein the digital map information indicates a plurality of locations of the corresponding plurality of charging stations on a road network. Control unit (101) according to one of the preceding claims, wherein the control unit (101) is set up - To determine whether a setting data record with historical setting data for one or more previous charging processes of the vehicle (100) has already been stored for the specific charging station at the specific charging station; and if it is determined that a setting data record has already been stored, to update the setting data record with the determined setting data; and or - if it has been determined that no setting data set has yet been saved, to create a setting data set on the basis of the setting data determined and to save it in connection with the specific charging station. Control unit (101) according to one of the preceding claims, wherein the control unit (101) is set up - to determine setting data in a plurality of charging processes at different charging stations and to store them in connection with the respective charging station in order to determine and store a list of charging stations for the respective historical setting data for one or more previous charging processes of the vehicle (100) exist. Control unit (101) according to one of the preceding claims, wherein the control unit (101) is set up - to determine that a subsequent charging process should be carried out at the specific charging station; in response to determining the setting data stored for the particular charging station; - To determine a proposal (111) for a charging mode and / or for one or more charging settings for the subsequent charging process at the specific charging station as a function of the stored setting data; and - to cause the proposal (111) to be output to a user of the vehicle (100) via a user interface (105). Control unit (101) according to Claim 6 , the control unit (101) being set up to cause the subsequent charging process to be carried out in accordance with the proposal (111) if it is recognized via the user interface (105) that the user accepts the proposal (111) or that the user does not contradict the proposal (111); and / or to cause the subsequent charging process to be carried out in accordance with a standard variant for charging processes if it is recognized via the user interface (105) that the user contradicts the suggestion (111). Control unit (101) according to one of the preceding claims, wherein - the setting data indicate a loading mode from a plurality of different loading modes; and - comprises the plurality of different charging modes, - a first charging mode, in which charging is carried out immediately until a specific target charge state of the energy store is reached; - A second loading mode, in which loading takes place in a defined time window; a third loading mode, in which loading is carried out in order to improve a specific optimization criterion for the loading process; and / or a fourth charging process which is designed to reduce a required cumulative charging time on a route in which several charging processes are required due to a limited capacity of the energy store. Control unit (101) according to one of the preceding claims, wherein - the settings data show values for one or more charging settings that are used for the charging process at the specific charging station, and - which include one or more charging settings, - a desired maximum duration of the charging process; - a desired end time of the charging process; - A target state of charge of the energy store at one end of the charging process; and or - a charging power that is used during the charging process. Control unit (101) for a vehicle (100) with an electrical energy store; wherein the control unit (101) is set up, - to determine that a charging process is to be carried out at a specific charging station from a plurality of different charging stations; in response to determining stored setting data relating to a charging mode and / or relating to one or more charging settings for a charging process at the specific charging station from a list of charging stations; wherein the list of charging stations for each charging station displays historical setting data for one or more previous charging processes of the vehicle (100) at the respective charging station; - to determine a suggestion (111) for a charging mode and / or for one or more charging settings for the charging process at the specific charging station as a function of the stored setting data; and - to cause the proposal (111) to be output to a user of the vehicle (100) via a user interface (105). Control unit (101) according to Claim 10 , wherein the control unit (101) is set up to determine position data in relation to a position of the vehicle (100), and to identify the specific charging station on the basis of the position data and on the basis of digital map information; wherein the digital map information indicates a plurality of locations of the corresponding plurality of charging stations on a road network. Control unit (101) according to Claim 11 wherein the control unit (101) is set up - to determine on the basis of the position data that the vehicle (100) is entering a predefined radius (203) around the specific charging station; and - in response to this, causing the suggestion (111) to be output to the user of the vehicle (100) via the user interface (105). Method (300) for storing setting data for a charging process of an electrical energy store of a vehicle (100); wherein the method (300) comprises, - Determination (301) that a charging process for charging the energy store of the vehicle (100) is carried out at a specific charging station from a plurality of charging stations; - Determination (302) of setting data in relation to a charging mode and / or in relation to one or more charging settings of the charging process at the specific charging station; and - Causing (303) that the setting data are stored in connection with the specific charging station in such a way that the setting data can be used for a subsequent charging process for charging the energy storage device of the vehicle (100) at the specific charging station. Method (310) for supporting a user of a vehicle (100) in a charging process for charging an electrical energy store of the vehicle (100); the method comprising (310) - Determining (311) that a charging process is to be carried out at a specific charging station from a plurality of different charging stations; - in response to this, determining (312) stored setting data relating to a charging mode and / or relating to one or more charging settings for a charging process at the specific charging station from a list of charging stations, the list of charging stations for each charging station being historical setting data indicates one or more previous charging processes of the vehicle (100) at the respective charging station; - determining (313) a suggestion (111) for a charging mode and / or for one or more charging settings for the charging process at the specific charging station as a function of the stored setting data; and - causing (314) that the proposal (111) is output to the user of the vehicle (100) via a user interface (105).

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