DE102018220483A1 - Charging system for an electrically drivable vehicle, method for operating a charging system - Google Patents

Abstract

The invention relates to a charging system for an electrically drivable vehicle, in particular a motor vehicle, having a charging station (2) which has a plug device (3) designed as a socket adapter (4) which can be plugged into a socket of a power supplier for making electrical contact with a vehicle to be charged . It is provided that the charging station (2) has a switching device (8), which is designed to produce or interrupt an energy transmission between the electricity supplier and the vehicle to be charged, and a communication unit (10), which is designed to transmit one through to receive a release command (11) sent control command (12) and a start request (13) of a user of the charging system (1), which contains at least identification information of the user, the identification information on a central station (15), in particular central computer for administration and Billing of charging processes, comparing stored identification information and depending on the control command (12) on the one hand and the comparison on the other hand actuating the switching device (8).

Description

The invention relates to a charging system for an electrically drivable vehicle, in particular a motor vehicle, with a charging station which has a plug device designed as a socket adapter, which can be plugged into a socket of a power supplier, for electrically contacting a vehicle to be charged.

The invention also relates to a method for operating the charging system mentioned above.

State of the art

Charging systems of the type mentioned are known from the prior art. In order to improve the charging infrastructure for electrically drivable vehicles, charging stations are increasingly being set up away from conventional petrol stations. Such charging stations often have a plug device designed as a socket adapter. On the one hand, this can be plugged into a socket of a power supplier in such a way that the plug device is electrically connected to the socket of the power supplier in the inserted state, and on the other hand provides a socket or a plug with which a vehicle to be charged can be electrically connected. The plug devices can be used in particular by private individuals to form a charging station for their electric or hybrid vehicle by plugging the plug device into any socket.

Disclosure of the invention

The charging system according to the invention with the features of claim 1 has the advantage that the availability or usability of the charging station can be restricted. According to the invention, it is provided that the charging station has a switching device that is designed to produce or interrupt an energy transmission between the electricity supplier and the vehicle to be charged, and a communication unit that is designed to send a control command sent by a release device and a start request for one To receive users of the charging system, which contains at least one piece of identification information from the user, to compare the identification information with identification information stored on a central station, in particular a central computer for managing and accounting for charging processes, and depending on the control command on the one hand and the comparison on the other hand, the switching device actuate. The switching device preferably has at least two switching states. In a first switching state, a vehicle to be charged, which is connected to the charging station, is electrically connected to the electricity supplier. Setting or maintaining this switching state is referred to as “producing the energy transmission”. In the second switching state, the vehicle to be charged is also not electrically connected to the electricity supplier when the vehicle is connected to the charging station. Setting or maintaining this second switching state is referred to as "interrupting the energy transfer". A user is understood to mean a person authorized to use the charging station and registered on the central computer. With the start request, the user signals that he wants to use the charging station, that is, he wants the energy transmission to be established or to remain. The identification information preferably contains a name of the user, a telephone number of the user, a license plate number of the user and / or account information of the user. The release device is preferably assigned to an owner of the charging station and can be actuated by the owner. Accordingly, the owner can use the control command to cause the power transmission to be established or interrupted. This means that the owner can choose to release or block the charging station for use by other users. As already mentioned, the identification information preferably contains the user's account information. In this case, the charging processes carried out by the user can easily be billed. For example, the owner of the charging station or the socket connected to the electricity supplier can easily be reimbursed.

According to a preferred embodiment, it is provided that the communication unit has a communication device which is designed to receive the control command on the one hand and the start request on the other hand. The fact that both the control command and the start request can be received by the one communication device results in the advantage that only a small number of components are required to form the communication unit. The communication unit is thus inexpensive to manufacture. In particular, the one communication device is also designed for data exchange with the central station.

According to an alternative preferred embodiment, it is provided that the communication unit has a first communication device for receiving the control command and a second communication device for receiving the start request. It is preferably provided that the first communication device and the second communication device are designed differently. Hence the Advantage that communication devices can be selected which are particularly advantageously suitable for receiving the control command or for receiving the start request.

At least one of the communication devices is preferably designed as a mobile radio module, WLAN module, Bluetooth module and / or infrared module. Communication devices designed in this way ensure reliable reception of the control command or the start request. At least the first communication device is preferably designed as a mobile radio module and / or WLAN module. This has the advantage that the control command can be received by the first communication device even in the case of a large distance between the charging station and the release device. In particular, the second communication module is designed as an input device designed at the charging station for manual input of the start request.

The charging system preferably has the release device, the release device being designed as a release device separate from the charging station, in particular as a mobile device. The release device can thus be moved separately from the charging station, in particular carried by the owner of the charging station. This results in the advantage that the control command can also be transmitted by the release device and received by the communication unit if the release device or the owner of the charging station is not in the immediate vicinity of the charging station. In particular, the release device is designed as a mobile device, preferably a smartphone. Alternatively or additionally, the release device is designed as an element of a vehicle.

The charging system preferably has the central station, the central station either being part of the charging station or being separate from the charging station. In the case of the first variant, that is if the central station is part of the charging station, there is the advantage that the charging station itself can be used to manage and bill charging processes. In the case of the second variant, that is if the central station is formed separately from the charging station, there is the advantage that charging processes at several charging stations can be managed by the one central station.

According to a preferred embodiment it is provided that the switching device has a first switching element which is part of the plug device. Such a design of the switching device has the advantage that the connector device itself has the essential elements of the switching device. It is therefore not necessary that the power supply socket into which the plug device is inserted has a switching element or is switchable.

According to a preferred embodiment, the electricity supplier is designed as a plant for generating regenerative energy, preferably as a local solar or wind power plant, in particular the owner of the charging station. This gives the owner the opportunity to sell renewable energy to the user.

The method according to the invention for operating a charging system designed as described above is distinguished by the features of claim 9 in that the presence of a start request is monitored by means of the communication unit, that when a start request is detected, the identification information with identification information stored on the central station, it is compared that the presence of a control command is monitored by means of the communication unit, and that the switching device is actuated in dependence on the control command on the one hand and the comparison on the other hand, in order to establish or interrupt the energy transmission between the electricity supplier and the vehicle. This results in the advantages already mentioned. Further preferred features and combinations of features result from what has been described above and from the claims.

According to a preferred embodiment of the method, it is provided that the control command has a release period has, the energy transmission being interrupted after receipt of the control command at the end of the release period, or that the control command has at least one blocking time, wherein the energy transmission is interrupted after receiving the control command when the blocking time has been reached. Specifying the release period increases the convenience for a user when using the charging station. In particular, the release period is specified in such a way that a charging process that has already started can be completed before the energy transmission is interrupted. Providing the blocking time, or several blocking times, increases the comfort for the owner. In particular, the blocking times are specified such that the energy transmission is interrupted daily at the same time.

According to a preferred embodiment of the method, it is provided that the control command has a blocking period, the energy transmission being established after receipt of the control command at the end of the blocking period, or that the control command has at least one release time, the energy transmission after receiving the control command when the release point is reached will be produced. This results in the advantage that the energy transmission, in particular following a previous interruption of the energy transmission, is established or re-established.

The control command is preferably not taken into account when actuating the switching device if the comparison shows that the user is the owner. If it is determined that the owner sends the start request, the energy transmission is established, regardless of whether the control command results in the energy transmission being established or interrupted. This has the advantage that the owner can use the charging station at any time to charge a vehicle or his vehicle.

• 1 ein Ladesystem für ein elektrisch antreibbares Fahrzeug,
• 2 ein vorteilhaftes Verfahren zum Betreiben des Ladesystems.

The invention is explained in more detail below with reference to the drawings. Show:

• 1 a charging system for an electrically drivable vehicle,
• 2nd an advantageous method for operating the charging system.

1 shows a simplified representation of an advantageous charging system 1 for electrically drivable motor vehicles, in particular electric vehicles and / or hybrid vehicles.

The charging system 1 has a variety of charging stations 2nd only one of which is shown here. The charging station 2nd has a connector device 3rd to make electrical contact with a vehicle to be charged. Here is the connector device 3rd as a socket adapter 4th educated. For this purpose, the connector device 3rd a socket 5 for receiving a connector of a motor vehicle to be charged. In addition, the connector device 3rd a connector 6 on, which is on the back of the connector device 3rd is located and according to the embodiment 1 is plugged into a socket of a power supplier. Because the connector 6 on the back of the socket adapter 4th are both the connector 6 as well as the outlet of the electricity supplier 1 not visible. The socket of the electricity supplier is, for example, by a connecting cable 7 electrically connected to the electricity supplier.

The charging station 2nd has a switching device 8th on, which is designed to produce or interrupt an energy transmission between the electricity supplier and the vehicle to be charged. It is assumed that the connector of the vehicle contrary to the representation in 1 into the socket 5 the connector device 3rd is plugged in. For example, a switching element is used to produce the energy transmission 9 the switching device 8th closed, so that the vehicle is then electrically connected to the electricity supplier. The switching element is analogous to this 9 opened to interrupt the electrical contact and thus the energy transfer. The switching element is present 9 Part of the connector device 3rd . Alternatively or additionally, the switching device 8th a switching element, which is part of the electricity supplier, in particular the socket of the electricity supplier. Even with such a switching element, it is assumed that this is part of the charging station 2nd is.

• Die Kommunikationseinheit 10 ist dazu ausgebildet, einen durch eine Freigabevorrichtung 11 des Ladesystems 1 ausgesendeten Steuerbefehl 12 zu empfangen. Bei der Freigabevorrichtung 11 handelt es sich um eine von der Ladestation 2 getrennte Freigabevorrichtung 11. Gemäß der Darstellung aus 1 ist die Freigabevorrichtung 11 als Smartphone, also als Mobilgerät, ausgebildet. Alternativ oder zusätzlich ist eine Freigabevorrichtung vorgesehen, die Bestandteil eines Fahrzeugs ist. Vorliegend handelt es sich bei der Freigabevorrichtung 11 um eine Vorrichtung eines Eigentümers der Ladestation 2. Somit kann der Eigentümer der Ladestation 2 mittels der Freigabevorrichtung 11 den Steuerbefehl 12 an die Kommunikationseinheit 10 aussenden.

To the switching device 8th to operate, the charging station points 2nd a communication unit 10th whose function is described in more detail below:

• The communication unit 10th is designed to be a release device 11 of the charging system 1 emitted control command 12 to recieve. With the release device 11 it is one of the charging station 2nd separate release device 11 . According to the illustration 1 is the release device 11 trained as a smartphone, i.e. as a mobile device. Alternatively or additionally, a release device is provided which is part of a vehicle. In the present case, it is the release device 11 a device of an owner of the charging station 2nd . Thus, the owner of the charging station 2nd by means of the release device 11 the control command 12 to the communication unit 10th send out.

In addition, the communication unit 10th trained to make a start request 13 of a user of the charging system 1 to recieve. A user is to be understood as a person who is in charge of using the charging station 2nd is registered. This is the start request 13 through an inquiry facility 14 that according to 1 is also designed as a smartphone. The start request 13 has at least identification information by which the user making the start request 13 transmits, is assignable or identifiable. In order to assign the user based on the identification information, the communication unit is 10th designed to provide the identification information with identification information on a central station 15 are stored to compare. The central station is here 15 trained as a central computer for the administration and billing of charging processes. Ultimately, the communication unit 10th trained to switch the device 8th depending on the control command 12 on the one hand and to operate the comparison on the other hand, that is, depending on the control command 12 and the comparison to establish or interrupt the energy transfer.

To the control command 12 and the start request 13 to receive and for data exchange with the central station 15 , the communication unit 10th in the present case a single communication device 16 on. Alternatively, the communication unit has several communication devices. In particular, a first communication device of the communication unit 10th trained to control the command 12 to receive while a second communication device of the communication unit 10th is trained to start request 13 to recieve.

The following is an advantageous method for operating the charging system 1 explained. This shows 2nd a flowchart of the process. In a first step S1 becomes the connector device 3rd provided. In particular, the connector device 3rd registered to an owner and / or their location so that charging processes can be correctly billed. When registering the connector device 3rd In particular, personal data of the owner, preferably also his bank details, are recorded in order to reimburse the costs incurred by his owner. In one step S2 becomes the socket adapter 4th plugged into the socket of the electricity supplier. Then in one step S3 a plug of a vehicle to be charged into the socket 5 the connector device 3rd plugged in.

In one step S4 is by means of the communication unit 10th the existence of a start request 13 supervised. In one step S5 will be a start request 13 sent out by a user. As described above, the charging system 1 several charging stations 2nd on. To correctly assign the charging station, i.e. the start request 13 to the correct charging station 2nd to send out, the user scans in the step S4 preferably one on the plug device 3rd the charging station 2nd attached code, in particular QR code or bar code. The start request 13 indicates that the user wants the energy transfer to be established between the vehicle being charged and the electricity supplier. As already mentioned, the start request points 13 at least identification information by which the user can be identified. Will in the step S5 the start request 13 sent out by the user, so the start request 13 in the step S4 through the communication unit 10th detected. In this case, the communication unit compares 10th in one step S6 the identification information of the start request 13 with identification information stored on the central station. The comparison can show that the user is the owner or one of the owners. In this case, the comparison shows that the user belongs to a first user group. Alternatively, the comparison can show that the user is a registered user who is not the owner of the charging station 2nd is. In this case it is recognized that the user belongs to a second user group.

In one step S7 is by means of the communication unit 10th the presence of a control command 12 supervised. The step follows S7 preferably before the step S4 , after the step S4 and / or during the step S4 . The communication unit 10th therefore preferably monitors the presence of the start request at the same time 13 and the presence of the control command 12 . Will be in one step S8 through the release facility 11 a control command 12 is sent out in the step S7 the control command 12 through the communication unit 10th detected. The control command 12 contains information on whether the energy transmission between the electricity supplier and the vehicle to be charged is to be established or interrupted. For example, the control command contains 12 a release period. The release time period is to be understood as a time period in which the energy transmission is established after receiving the control command for the release time period and is interrupted when the release time period expires. In particular, the control command points 12 at least one blocking time, the blocking time indicating the point in time or the time at which the energy transmission is interrupted. In particular, the control command points 12 a lockout period, wherein the energy transfer after receiving the control command 12 is interrupted for the blocking period and is produced after the blocking period has expired. In particular, the control command points 12 at least one release time, wherein the energy transmission after receiving the control command 12 when the release time is reached.

In one step S9 it is decided whether the switching device 8th is operated in such a way that the energy transmission is or remains manufactured, or whether the switching device 8th is operated such that the energy transmission is interrupted or remains interrupted.

Will in the step S6 found that the user belongs to the first user group, so in the step S9 decided that the power transmission is established regardless of whether the control command 12 at the time of the start request 13 indicates that the energy transfer should be interrupted. In this case, one step S10 generates a release command and the switching device 8th actuated in such a way that the energy transmission is produced or remains manufactured. The control command 13 is therefore not taken into account in the implementation of the method in this case.

Will in the step S6 however, found that the user belongs to the second user group, so the control command 12 when operating the switching device 8th considered. Gives the control command 12 in this case, that the energy transmission is to be established, is also in the step S10 the release command generates and the switching device 8th actuated in such a way that the energy transmission is produced or remains manufactured. Gives the control command 12 however, that the energy transfer should be interrupted in one step S11 despite the presence of the start request 13 generated a lock command and the switching device 8th operated in such a way that the energy transmission is interrupted or remains interrupted.

Will in the step S4 a start request 13 and in the step S7 no control command 12 is recorded in the step S10 the energy transmission is established.

Claims (12)

Charging system for an electrically drivable vehicle, in particular a motor vehicle, with a charging station (2), which has a plug device (3) designed as a socket adapter (4) which can be plugged into a socket of a power supplier for electrically contacting a vehicle to be charged, characterized in that that the charging station (2) has a switching device (8) which is designed to produce or interrupt an energy transmission between the electricity supplier and the vehicle to be charged, and a communication unit (10) which is designed to transmit one by a release device (11 ) received control command (12) and a start request (13) from a user of the charging system (1), which contains at least identification information of the user, the identification information with on a central station (15), in particular central computer for the administration and billing of charging processes, stored identification to compare formations, and depending on the control command (12) on the one hand and the comparison on the other hand to actuate the switching device (8). Charging system after Claim 1 , characterized in that the communication unit (10) has a communication device (16) which is designed to receive the control command (12) on the one hand and the start request (13) on the other. Charging system after Claim 1 , characterized in that the communication unit (10) has a first communication device for receiving the control command (12) and a second communication device for receiving the start request (13). Charging system according to one of the Claims 2 and 3rd , characterized in that at least one of the communication devices is designed as a mobile radio module, WLAN module, Bluetooth module and / or infrared module. Charging system according to one of the preceding claims, characterized in that the charging system (1) has the release device (11), the release device (11) being designed as a release device (11) separate from the charging station (2), in particular as a mobile device. Charging system according to one of the preceding claims, characterized in that the charging system (1) has the central station (15), the central station (15) either being part of the charging station (2) or separate from the charging station (2). Charging system according to one of the preceding claims, characterized in that the switching device (8) has a first switching element (9) which is part of the plug device (3). Charging system according to one of the preceding claims, characterized in that the electricity supplier is designed as a plant for generating regenerative energy, preferably as a local solar or wind power plant, in particular the owner of the charging station (2). Method for operating a charging system according to one of the Claims 1 to 8th , with the following steps: a. Monitoring the presence of a start request (13) by means of the communication unit (10), b. When a start request (13) is detected, comparing the identification information with identification information stored on the central station (15), c. Monitoring the presence of a control command (12) by means of the communication unit (10), i. Actuation of the switching device (8) in dependence on the control command (12) on the one hand and the comparison on the other hand in order to establish or interrupt the energy transmission between the electricity supplier and the vehicle to be charged. Procedure according to Claim 9 , characterized in that the control command (12) has a release period, the energy transfer after receiving the control command (12) is interrupted at the end of the release period, or that the control command (12) has at least one blocking time, the energy transmission being interrupted after receiving the control command (12) when the blocking time has been reached. Procedure according to one of the Claims 9 and 10th , characterized in that the control command (12) has a blocking period, the energy transmission being established after receipt of the control command (12) at the end of the blocking period, or in that the control command (12) has at least one release time, the energy transmission after receiving the control command (12) is produced when the release time is reached. Procedure according to one of the Claims 9 to 11 , characterized in that the control command (12) is not taken into account when actuating the switching device (8) if the comparison shows that the user is the owner.

Images