EP2844516A2

EP2844516A2 - Method for charging or discharging an energy store in a vehicle, associated device, and associated station

Info

Publication number: EP2844516A2
Application number: EP13739965.5A
Authority: EP
Inventors: Marcus FEHLING; Gunter Freitag; Karl-Josef Kuhn
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2012-09-06
Filing date: 2013-07-16
Publication date: 2015-03-11
Also published as: WO2014037137A3; DE102012215813A1; WO2014037137A2

Abstract

Disclosed is, inter alia, a method for charging or discharging an energy store in a vehicle, involving: - coupling a vehicle to a station in order to charge or discharge an energy store in a vehicle; - providing the station user with an electronic device (10); - having the device (10) output the time it will take for the charging or discharging process to be completed.

Description

description

A method of charging or discharging an energy storage in a vehicle, associated apparatus and associated station

The invention relates to a method for charging a Energiespei ^¬ chers in a vehicle, especially in an electric vehicle. The energy storage can be an accumulator, for example a lithium-ion battery. The energy store can also be unloaded, for example by feeding it into a public

High voltage network, i. Voltages greater than 1000 volts but less than 600 kilovolts, or in a private low voltage network, i. Voltages ranging from 100 volts to, for example, 700 volts to intercept load peaks. The power supply is also referred to as V2G or "vehicle to grid".

There are two types of charging and discharging processes:

- Continuous or continuous discharge with comparatively low power but for a longer time, e.g. in the range of one hour to 10 hours, which may be advantageous for the life of the battery, and

- Fast charging or quick discharging with comparatively high power but for a short time, e.g. in the range of 5 minutes to 30 minutes, which is when driving longer distances, i. on the way, is used.

The invention relates to a method for charging or discharging an energy storage device in an electric vehicle, comprising: - coupling a vehicle and respectively with a station for La ^¬ or discharging an energy storage device in an electric vehicle,

- Output of an electronic device to the user of the charging station,

- spend the remaining time to load or unload on the device. The invention also relates to a device for assisting the charging or discharging of an energy store in an electric vehicle, comprising:

a display unit,

a first data transmission unit which sends and / or receives data according to a first data transmission method,

a second data transmission unit which sends and / or receives data in accordance with a second data transmission ^method , wherein the second data transmission method differs from the first data transmission method,

- a control unit which is connected to the display unit, the first data transfer unit and the second data ^¬ transmission unit, wherein the control unit so Toggle controls the display unit depending on the received data, that the remaining time for charging or discharging on the display unit or is by the display unit is ^¬ shows.

The invention further relates to a station for charging or discharging an energy storage device of an electric vehicle, ent holding ^¬:

a power transmission device for transmitting electrical energy to or from the energy store,

- An output device for outputting an electronic device, which gives the remaining time for charging or discharging ^¬ .

It is an object of further developments of the invention to specify a simple method for charging or discharging an energy store in an electric vehicle. In particular, the Be ^¬ user of the vehicle is to be relieved as possible and still have the opportunity to be with completion of the charging / discharging of the charging / discharging station. In addition, an associated device and an associated station should be specified.

This object is achieved by a method according to claim 1, by a device according to the independent claim and by a Station solved according to the further independent claim. Further developments are specified in the subclaims.

The method of charging or discharging an energy storage in an electric vehicle may include:

Coupling a vehicle and a station for charging or discharging an energy store in an electric vehicle,

- output of an electronic device or token to a treatment ^¬ user of the loading station,

- spend the remaining time to load or unload on the device.

The method is particularly suitable for fast charging and fast discharging. However, the method can also be used for continuous charging or continuous discharging.

In the method, the user of the charging method or the unloading does not have to make a clock and monitor any time. Nevertheless, he is informed exactly about the end of loading or unloading, so that it is not unnecessarily delayed by the loading / unloading. The user does not have to press a stopwatch manually. The time can be counted down automatically by the device or the device is the remaining time is transmitted.

The device can also serve as an additional safeguard against misuse during charging / discharging. Thus, a lock for a charging plug can only be released when the device is present. Even when paying a misuse can be prevented if the device is included in the payment process.

The device may also perform other functions, such as communication with the vehicle, if necessary via the charging station, electronic shopping, advertising media, etc.

The coupling of vehicle and station can be done as follows: mechanically connecting the vehicle and the charging station via an electrically conductive line, ie a cable,

inductive coupling by means of coils,

- or in other ways.

The output of the device can, for example, over at the loading station SUC ^¬ gen, including:

- an ejection shaft,

- an automatically or manually detachable lock,

- or in other ways.

However, the device can also be issued elsewhere, for example at an entrance of a filling station, in particular an electric filling station and in particular at filling stations which are combined with sales possibilities of goods, in particular food / drinks. The device can then be released back into the La ^¬ destation, at a ticket office or at an exit. The remaining time can be displayed visually, eg:

with at least one optical display element, e.g. a LED (Light Emitting Diode), via various flashing frequencies, a "light bar", similar to an analog clock arranged elements or LEDs (quarter, half, three-quarter, order),

with a screen, such as LCD (Liquid Crystal Display) or TFT (Thin Film Transistor), on which figures can be displayed, in particular in combination with a touch-sensitive or proximity-sensitive screen.

The spending of the remaining time can also be acoustic, e.g. by:

- voice output,

- different sound signals,

- or in other ways. Spending the remaining time can also be done other than visually or acoustically.

The remaining time can be fixed in a simple variant in the electrical device, so that there are several different devices for different times for different times.

A starting operation of the time counting can be released in various ways, e.g. by the user with a button. By a sensor, e.g. a motion sensor or an optical sensor.

But the remaining time can be programmed and each time been entered into the when the device is issued insbesonde ^¬ re dependent on, for example:

the selected amount of charge / discharge of the user, and / or

the state of charge or the state of discharge of the battery in the car / vehicle, e.g. Passenger cars, Lasers, Commercial vehicles,

Bus.

The remaining time can be ^¬ telt and outside the equipment ermit and then transferred to the device. This means that the device itself does not have to contain a counter. An over Mitt ^¬ development time also offers the possibility of unforeseen ^¬ nen corrections.

The method may include at least once a transmitting of a date that is the duration of the charging or discharging at ^¬. The date can be transmitted from the charging station to the device. The transmission can take place before the output, at the output or immediately after the output. Thus, the same type of device or the same device for different periods of time can be used. Alternatively, data indicative of the duration of charging or discharging is transmitted multiple times from the charging station to the device, eg via a radio interface. A first transmission can take place via a radio interface for the local area. The close range can be less than 10 meters. This makes it possible to use transmission methods in frequency bands which are not overloaded, in particular due to the short range of transmitting antennas. It can even go into the near field of an antenna, for example to distances between the antenna and device, which are smaller than 1 meter or less than 10 centimeters. The near field of an antenna offers a particularly fail-safe transmission due to interference-free radiation distribution. In addition, the near field or possibly also in the far field can be used for the electrical supply of the receiver.

Procedures for close range are, for example:

- Bluetooth, Zigbee, EnOcean, Infrared (IR),

- RFID (Radio Frequency Identification), e.g. transponder

(passive), semi-active - only control circuit is supplied but no transmission level, or active.

The transmission can also take place via a radio interface for the long-range, in particular for updates of the charging time or discharge duration. The far-end area relates, for example, to distances between transmitter and receiver of up to 50 meters or more but e.g. less than 1 kilometer. A suitable method for the remote area is, for example, WLAN (Wireless Local Area Network).

Also, short-range methods and long-range methods may be combined, for example depending on the distance to the station for charging or discharging.

The transmitted date can be stored in the device or used to set a counter. Also, a circuit with counter can later read out the value of the transmitted date. The Date can be noted in a memory of the device. So an RFID tag also has a memory.

A one-time transmission is sufficient when counting down or counting up in the device, i. there is no possibility of correction here.

Corrections are possible in the case of a repeated transmission, since the loading / unloading process time is often difficult to estimate, because it depends, for example, on:

- environmental conditions, e.g. Temperature,

- the age of the energy store,

- The amount of energy available, and / or

- current acceptance restrictions of a network operator, etc.

A multiple transmission also allows a device that does not count itself, but in which with a so-called stimulus protocol individual elements are controlled from the outside, for example, the third LED or the third optical element should be lit or should be dark.

The method may include associating a unique electronic license plate number with the charging station. Additionally or alternatively, an assignment of a unique electronic license plate date to the device can take place. Preferably, an Internet address is selected as the identifier. From the Internet Protocol Version IP6 there is sufficient address space to as the Internet of things to realisie ^¬ ren.

The assigned identifier may be used for data transmission and / or for other purposes, for example, when paying, shopping, etc. The method may include storing the value of the flag date of the charging station and the value of the Kennzeichenda ^¬ tums of the device in the device. On the one hand, the device is therefore clearly identifiable on the basis of the device identifier. zierbar, especially when sending messages. The device can detect messages intended for it, eg based on the receiving address. On the other hand, it allows the characteristics of the loading station or unloading station to address it just assigned La ^¬ destation specifically the device. It is also possible to query from the outside which charging station or unloading station belongs to the device.

The device can be used for shopping, for example:

- the selection of products,

- When paying the charging current or when paying a credit for feeding, and / or

- If necessary, only as a chip in a shopping cart.

In this way, license plates for selected products can be stored in the device. Additionally or alternatively, the license plates for the selected products are also stored centrally. With multiple storage a check-out is possible at a cash register, which makes misuse more difficult.

The procedure may include:

Using a first data transfer method to transfer data to or from the device, and

- Using a second data transmission method for transmitting data to or from the device, wherein the transmission range of the first data transmission method is smaller than the transmission range of the second data transmission method, in particular less than half.

By using two different data transmission methods, a large number of devices can be used in one place. It can be transmitted as much as possible in the vicinity. Only the data that has to be transmitted over longer distances, are transmitted with the second data transmission method. An energy storage of the device can be charged inductively. The energy storage is eg a rechargeable battery or a capacitor. In particular, small capacitors, for example, with largest dimensions in the range of 1 centimeter to 10 centimeters, with a capacity in the range of 1 Farad to 30 Farad are ge ^¬ suitable, ie so-called supercaps. The inductive charging does not require extensive manual replacement of batteries or rechargeable batteries. The method may include reading data from the device during a payment process. In particular, the license plate of the device or the identifier of the associated charging station can be read. Both license plates can also be read. For example, the user of the station need not remember a number of the loading / unloading station which he would have to indicate when paying.

The method may include the delivery of the device in a payment ^¬ process at a checkout or, for example, after the payment process at the station for loading or unloading.

When removed from the station and a delivery at the station, the cycle for the transport of Ge ^¬ device closes in a simple manner. When dispensing at the station, a self-filling takes place. Also, only one device per charging station is required.

Upon delivery to a cash register, maintenance of the device / token may subsequently be performed, e.g. Charging, deleting data etc.

Alternatively, the device can be delivered to an exit of the gas station / wholesale market. The device may have a housing with a circular or elliptical cross-section. This makes the device very handy. So the device can have a similar size as hard money or like a chip for a shopping cart. Even size Up to 10 centimeters are still handy for the user.

The invention also relates to an apparatus for assisting the charging or discharging of an energy storage device in an electric vehicle, comprising:

a display unit, and / or

a first data transmission unit which sends and / or receives data according to a first data transmission method, and / or

a second data transmission unit which sends and / or receives data in accordance with a second data transmission ^method , wherein the second data transmission method differs from the first data transmission method, and / or a control unit connected to the display unit, to the first data transmission unit and / or Since the second is ^¬ tenübertragungseinheit connected, wherein the control unit so controls the display unit depending on the received data, that the remaining time for charging or discharging on the display unit or by the display unit is ^¬.

The first data transfer unit may transfer data ^¬ rich in a Nahbe, for example, less than in a range of 10 meters.

^By contrast, the second data transmission unit can transmit data in a remote area, for example in a range of up to 50 meters or more.

The largest dimension of the device may be less than 10 centimeters or less than 3 centimeters in one embodiment. The device may have a largest dimension, for example, greater than one centimeter. Thus, the device is very handy and thus suitable as a portable device that is particularly ^¬ friendly. The device may have a housing in one embodiment, in particular a housing made of a plastic. Thus, the data transmission from or to the device through the housing is not or only slightly hindered.

In particular, the device may have a circular or elliptic ^¬ rule section. The round shape increases the user friendliness ^¬ so it can be easily inserted into pockets ^¬ and less easily caught the case of automatic output.

The device may comprise at least one, contain several or all of the fol ^¬ constricting features:

a memory for a license plate tag identifying the device and / or for a tag data indicating a vehicle loading or unloading station,

a counting device,

an inductive charging device for charging an energy storage device of the device,

an acoustic output device or a vibration device,

an input unit containing at least one input element or at least two input elements.

The tag data may be used in connection with the data transfer, for example for checking a receiving address or as a value for a sending address. But other operations may also be performed depending on the tag data or the two tag data, e.g. Control processes, payment transactions, services, etc.

By the counting device, the number of messages to be transmitted can be reduced. A counter can be automatically counted up or counted down until a final value is reached. When counting up, the final value is a measure of the time duration. When counting down, the starting value is on The amount of time and counting can be terminated when the value of zero or one is reached.

Alternatively, the device may operate without a counter, for example, by repeatedly updating and displaying the remaining time for a charge or discharge. This results in a simple structure.

The inductive charging device for charging the energy storage of the device may, for example, be a coil of suitable inductance. The energy store may be a rechargeable battery or a capacitor, in particular the supercap mentioned above.

The acoustic output device may be a speaker or contain a piezoelectric crystal. It can also be a Ausga ^¬ before direction used to output a mechanical movement, for example. A vibration signal at the end of the charging operation or the discharging operation ^¬. The input unit may be a touch-sensitive or approximately ^¬ sensitive display unit (touch screen). The input element or the at least two input devices to be Kings ^¬ nen buttons on the touch screen. Alternatively, mechanical or electronic keys can be used. With two buttons the user can, for example, already yes / no queries decisions in a simple way.

The device can be used in a method according to any one of the preceding claims, in particular with the special features mentioned there for the control device. Thus, the technical effects mentioned above for the method also apply to the device.

The invention also relates to a charging station for charging or an unloading station for discharging an energy store of an electric vehicle, comprising: a power transmission device for transmitting electrical energy to or from the energy storage of the vehicle, and

The energy transmission device is, for example:

- a plug, a socket, a charging cable, or

a coil suitable for transmitting large amounts of energy, e.g. in the range of 1 KWh to 10 KWh, especially in times in the range of 5 minutes to 30 minutes.

The charging station or discharge station can be connected to a public power grid or to a private power grid.

The loading station or the unloading station can contain an input device for receiving the device after loading or after unloading, eg a throw-in shaft or an outwardly open receptacle. Thus, the A ^¬ transfer device differs from a disposed in the interior of the station receiving compartment, which is accessible only to service personnel, for example.. The input device may be spatially separated from the output device. Alternatively, the output device also serves as an input device, wherein then a sensor arrangement can be used to detect the delivery or recording of the device.

The charging station can be used in a method as explained above, in particular with the special features mentioned for a charging station. Thus, the technical effects mentioned above for the method also apply to the charging station. A combination of an explained method, an illustrated device and an illustrated station is also possible. In other words, an electric token is specified for communication with a charging station for an electric vehicle. Charging an electric vehicle takes at least 15 minutes, even with a suitable fast-charging device. This time, the driver can now spend either in the car or at the charging station and wait until the charging process is completed or he moves away from the car or the charging station, but then do not know exactly when the charging is ^{abgeschlos ¬} sen. The preceding and following explanation presents a technical device, see eg Figure 2, which is output from the charging station and informs the driver as soon as the charging process is completed.

So far, there is no known technical solution to this problem.

The token may have the following technical characteristics:

- a fixed assigned globally unique Identifikationsnum ^¬ mer (ID)

RFID (Radio Frequency Identification) and NFC (Near Field Communication) functionality,

a radio interface suitable for data communication,

a screen or other suitable output unit for displaying numbers or other images and symbols,

a power store, e.g. Accumulator,

a coil for the inductive charging of the built-in current memory,

- one unit to store data,

- a control unit (control unit), which calculate by means of suitable programs ge ^¬ any information and may on said output unit, for example, screen output.

After the vehicle has been connected to the charging station, the token in an output tray is made available to the user of the charging station by means of a suitable mechanism, for example. provides. At the same time, the ID of the charging station is transmitted by radio to the memory of the token. If the user removes the token from the output tray, the ID of the token is linked to the ID of the charging station and this information is stored on a central data store, eg server, for later billing. Simultaneously, the charging station initiates the Kom ^¬ munication with the vehicle and transmits the foresight ^¬ Liche duration of charging to the token. The token displays this information on its screen and begins to count down the time. The charging station transmits for example. In re ^¬ regular intervals the remaining loading time of the token. If the time retransmitted not match the time of the To ^¬ ken, so the token matches the time corresponding to the new default. After the time has elapsed, the token signals visually and / or acoustically and / or haptically, eg

by vibration, the completion of the charging process.

The user now goes with his token to checkout and puts the token on a suitable reader, which reads both the ID of the token and the deposited ID of the charging station and created on this basis the bill. Additionally, with this process it is also possible to complete the loading process, even if the time on the token has not yet expired. The token, for example, remains at the cash register and is reset there with a suitable mechanism and inductively recharged.

More functions:

- The fact that the charging station has a data connection to the vehicle, other information may be currency ^¬ rend determined the store, be transferred to the token. Thus, traffic jam messages can be transmitted or signals of an anti-theft device on the vehicle. On the other hand, the device / token can also be used to control the vehicle or to control in-vehicle devices, for example, air conditioning or start downloading a movie from the Internet or the like. - The token could be extended by an input option, such as buttons, touch-sensitive screen, to allow eg via simple yes / no questions interaction with the vehicle.

- By building the token, it can also be used for cashless purchasing of products and services. Unlike comparable systems, this intelligent token requires no separate infrastructure on the part of the product / service provider. Concrete needs of Ser ^¬ vice, such as buying a cup of coffee, be identifiable only by means such as an RFID label. If the customer now holds his token to this sticker, he will be informed via the screen about the item and the price. With the above-mentioned input option, he can now confirm or reject the purchase. If he confirms the purchase, on the one hand the ID of the service / product is transferred into the memory of the token and simultaneously sent over the radio interface of the token to the central data store. During billing, the cash register reads the memory of the token and compares it with the entries stored in the central store. If both agree, the bill can be settled and settled. The fact that the customer always knows when

Vehicle is fully loaded, he can relax in this time other activities turn. The advantage of such a system is, above all, that the Geschäftsmo ^¬ delle eg retained from classical stations, in-the you motivate the customer to take the time to spend in the car, they prefer in the connected store and / or Bistro spend.

It is also achieved that can be purchased anonymously with cash, although electronic devices are included. The above-described characteristics, features, and advantages of this invention, as well as the manner in which they will be achieved, will become clearer and more clearly understood in connection with the following description of the embodiments. Unless this application, the term "may" is used, it is both the technical possible ^¬ ness and the actual technical implementation.

In the following, embodiments of the invention will be explained with reference to the accompanying drawings. Show:

1 shows an electronic control device or token according to a first exemplary embodiment, FIG. 2 shows an electronic control device or token according to a second exemplary embodiment,

Figure 3 components of the recording device according to the second

Embodiment,

FIG. 4 shows operations at an electric filling station in accordance with a

first method,

FIG. 5 shows operations at an electric filling station according to a

second method

FIG. 6 shows operations at an electric filling station according to one

Third method, Figure 7 Operations at an electric filling station according to a

fourth method,

FIG. 8 shows the structure of a charging station or charging station, FIG. 9 shows the structure of a server,

Figure 10 shows the structure of a cash register, and Figure 11 Components of a shelf label.

1 shows an electronic control device 10 or token according to a first embodiment. The device 10 has a circular shape in the embodiment. Alternatively, oval or ellipsoidal forms are used. Even angular shapes are possible.

In a housing 12 there are:

a circuit 14, e.g. a counter and / or a transmitting and / or receiving unit,

an optional memory 16, e.g. for storing a meter reading,

- An optional sensor 18, alternatively an optional transmitting and / or receiving unit.

In a first exemplary embodiment, four LEDs 20 to 26 are arranged on the housing 12 along the circumference, with an angular spacing of, for example, 90 degrees between adjacent LEDs 20 to 26. More or fewer LEDs or other optical display elements can be arranged along the Circumference can be arranged. The remaining time is displayed, for example, so that first the LED 20, then additionally the LED 22, then additionally the LED 24 and finally, ie at the end of the charging process or the discharge process, all LEDs light up. Also, initially, all LEDs light and gradually LEDs are abgeschal ^¬ tet in the order mentioned. Alternatively, an LED line 28 can be used, eg with three, four or more than four LEDs or other optical display elements. Again, the display elements can be switched on one after the other or switched off one after the other to indicate the progress of the loading or unloading.

In the simplest case the device for a specified time vorgese ^¬ hen, which can be eg. Manually set, for example, by setting an electromechanical element. Also a permanent Adhesive, ie several loading operations concerned, for example, more than 10, electronic specification of a service station / computer is possible. For example, different devices preset at least two different times or at least three different times, eg 5 minutes, 10 minutes and 15 minutes.

A start-up procedure can take place when the device 10 is being dispensed, for example via the sensor 18 or a receiving circuit. The counter 14 then counts down from a fixed value or up to a fixed value. For example, a motion sensor can monitor the impact of an output of the device 10 from a charging station or unloading station. Alternatively, no counter is included in the device 10 and the device is via a receiving unit control signals übermit ^¬ telt for driving the optical elements, such as the LEDs 20 to 26 and the LED line 28. Thus, the device 10 has a comparatively simple structure in comparison to the device 110, which will be explained below with reference to FIG. In particular, the device 10 may be equipped without transmitting and / or receiving unit or at least only with a transmitting and / or receiving unit. The device 10 can be used in the below with reference to Figures 4 to 7 erläu ^¬ failed particular method.

FIG. 2 shows an electronic control device 110 or token according to a second exemplary embodiment. The device 110 includes a housing 112, which, for example, as the housing 12 is built up ^¬ . The above-mentioned modifications for the housing 12 above are possible for the housing 112.

Optional LEDs 120 to 126 or other optical Anzeigelemen- te, including so-called flip dots, or a line from Ad ^¬ elements may be present. A display unit 130, for example an LCD (Liquid Crystal ^Display ), TFT (Thin Film Transistor) or a touch-sensitive screen, is arranged on the housing 112 and serves to display the remaining time and possibly to display data during the display Provide additional functions, eg communication with the vehicle to be loaded, electronic shopping oa

Optional speaker slots 132, 134, together with an optional speaker, allow for the output of acoustic signals, especially at the end of time.

Optional button 140, 142 or other input elements made ^¬ them for the user to interact with the device 110, for example. In the context of an electronic purchase, see Figure 7, cancel of charging, continuing the charging, etc.

The inner components of the device 110 are explained in more detail below with reference to FIG.

Alternatively, only one acoustic unit or one vibration unit can be used as the output unit. If a speaker is used, a voice output can SUC ^¬ gen.

The device 110 offers more comfort than the device 10 and can be used to provide additional functions that go beyond monitoring or controlling the charging or discharging ei ^¬ nes electric energy storage of an electric vehicle 210, see eg Figure 8.

FIG. 3 shows components of the monitoring device 110 according to the second exemplary embodiment:

a power supply 150,

a control unit 152,

two data transmission units 160, 162 (e.g., optional), and / or

an output device 170. The power supply 150 may include, for example, a battery or a capacitor. The required energy can also be absorbed from the environment, ie via energy harvesting. The required energy can also come from an RFID transmitting antenna. The power supply 150 may also include a coil for inductive charging of the battery or capacitor of the device 110, which will be explained in more detail below with reference to FIG.

The control unit 152 contains, for example, a processor and a memory M, for example RAM (Random Access Memory), ROM (Read Only Memory) or the like. The processor executes, for example, commands stored in the memory M. A microcontroller may also be used as the control unit 152. Also, control units ^¬ be used without processor, for example, FPGA (Field Program mable array).

The data transmission unit 160 is designed for data transmission in the near range, ie, for example, at a distance of less than 10 meters. In question are methods such as near field RFID (Radio Frequency Identification), Bluetooth, Zigbee, EnOcean, Infrared (IR). The data transmission unit 162 is designed for a Datenübertra ^¬ supply in the far range, ie for example in a range up to 50 meters, up to 100 meters or more. Possible applications include WLAN (Wireless Local Area Network), GSM (Global Standard Mobile), UMTS (Universal Mobile Telecommunications System), LTE (Long Term Evolution.

In another embodiment, only the unit 160 or only the unit 162 is used. The output device 170 includes, for example:

the display unit 130, and - one or more explained with reference to Figure 2 optional output elements, such as LEDs 120 to 126, loudspeaker ^¬ books, etc. A characteristic ID1 that uniquely identifies the device 110 is stored in a memory of the device 110, for example, in the memory M The identifier ID1 is, for example, a globally unique Internet address or another number. The con troll ^¬ device 110 can be used in all processes which are explained with reference to Figures 4 to 7 below.

The optional input elements of the device 110 or token are not shown in FIG. FIG. 4 shows operations at an electric filling station 200a according to a first method. The electric filling station 200a ent ^¬ holds:

a charging station 202a, which corresponds to the charging station 202, which is explained in more detail below with reference to FIG. 8,

a service providing computer or server 204a, which corresponds to the server 204, which is explained in more detail below with reference to FIG. 9,

- an electronic cash register 206a that speaks the cash register 206 ^¬ ent, which is explained in detail below with reference to Figure 10, and / or

an optional shelf label 208a corresponding to the shelf label 208 which will be explained in greater detail below with reference to FIG. An electric car 210a corresponds to the electric car 210, the un ^¬ th is explained in more detail with reference to FIG. 8

The device 10 or 110 is output from the charging station or charging station 202a, with a charging plug being locked, for example. Communication protocols between the charging station 202 and the vehicle 210 are not the subject of the present Appli ^¬ formation and are therefore not explained in detail, however, see the explanations below in connection with FIG. 8 In the case of a simple embodiment of the device 10 or 110, there is no need to communicate with the charging station 202a. The user can then move in the electric filling station 200a, see arrow 220a, until the device 10 or 110 signals the end of the charging time or end charging time. Thereafter, the Nut ^¬ zer goes to the cash register 206a to pay the store, or to receive money or a credit for unloading, see arrow 222a. The device 10, 110 is eg. At the cash register

20 issued.

After payment and delivery of the device 10, 110 at the cash register 206a, a locking device for the charging plug can be released, for example via a data transmission connection between the cash register 206a and the charging station 202a.

Alternatively, the device 10, where 110 at the charging station 202a from ^¬. A release of the locking device for the charging plug takes place, for example, only after the presence of an enable signal from the cash register 206a and the delivery of the correct device 10, 110 to the charging station 202a, which can be checked by reading the flag ID1 in the charging station 202a.

An arrow 224a illustrates a variant in which the device 10 or 110 before, during or immediately after the output to the charging station 202a from the charging station 202a or by a La ^¬ desäule 202a associated server, eg 204a, described with data is, for example, with a counter value, the characteristic of the charging station 202a, or another value. For this data transmission, a transmission in the near range is preferably used. Alternatively, however, a transmission in the remote area can be used, with reference to the lengths specified in the introduction to these areas. However, the data transfer associated with arrow 224a is optional in the first method. FIG. 5 shows operations at an electric filling station 202b according to a second method. The electric filling station 200b contains:

a charging station 202b, which corresponds to the charging station 202, which is explained in more detail below with reference to FIG. 8,

a service providing computer or server 204b, which corresponds to the server 204, which is explained in greater detail below with reference to FIG. 9,

an electronic cash register 206b, which corresponds to the cash register 206, which is explained in more detail below with reference to FIG. 10, and / or

an optional shelf label 208b corresponding to the shelf label 208 which will be explained in greater detail below with reference to FIG.

An electric car 210 b corresponds to the electric car 210, the un ^¬ th is explained in more detail with reference to FIG. 8

The device 10 or 110 is output from the charging station or charging station 202b, with a charging plug being locked, for example. Communication protocols between the charging station and the vehicle 202b 210b are not the subject of the present application and are therefore not described in detail, see each ^¬ but the explanations below in connection with FIG. 8

In the case of a simple embodiment of the device 10 or 110, there is no need to communicate with the charging station 202a.

However, such a communication is advantageous because, according to the second method anyway data to the device 10, 110 must be transmitted.

An arrow 224b shows a variant in which the device 10 or 110 before, is described at or immediately after the output of the charging station 202b of the charging station 202b or one of La ^¬ desäule 202b associated server, such as 204b with data For example, with a counter value, the indicator of the charging station 202b, or another value. For this data Transmission is preferably used a transmission in the near range. Alternatively, however, a transmission in the remote area can be used, with reference to the lengths specified in the introduction to these areas. The data transfer associated with the arrow 224b is optional in the second method.

The user can bewe ^¬ gen in the Elektrotankstelle 200b then see arrow 220b. While the user station at the Elektrotank- 200b is on the way, is from the loading column 202b an update to the device 10, sent 110, see arrow 250b, for example. Because the charging time has / discharge unerwar ^¬ tet shortened or lengthened. In the device 10 or 110, the charging time is then adjusted. It can also be done several times adjusting the time, for example. Including the user, for example, cancellation by the user, offering cheap fares / credits for the continuation of the shop or unloading. For the update, a remote data transmission is preferably used.

When the device 10 or 110 signals the end of the charging time or Endla ^¬ dezeit, the user goes to the cash register 206b to pay the store, or to receive money or a credit for unloading, see arrow 222b. The device 10, 110 is discharged, for example, at the cash register 206b.

After payment and delivery of the device 10, 110 at the cash register 206b, a locking device for the charging plug can be released, for example via a data transmission connection between the cash register 206b and the charging station 202b.

Alternatively, the device 10, where 110 at the charging station 202b from ^¬. A release of the locking device for the charging plug takes place, for example, only after the presence of an enable signal from the cash register 206b and the delivery of the correct device 10, 110 at the charging station 202b, which by reading of the license plate ID1 in the charging station 202b.

An arrow 224b shows a variant in which the device 10 or 110 before, is described at or immediately after the output of the charging station 202b of the charging station 202b or one of La ^¬ desäule 202b associated server, such as 204b with data For example, with a counter value, the indicator of the charging station 202b, or another value. For this data transmission, a transmission in the near range is preferably used. Alternatively, however, remote transmission may be used, with reference to the information given in the introduction to those areas. The data transfer associated with the arrow 224b is optional in the second method.

FIG. 6 shows operations at an electric filling station 202c according to a third method. The electric filling station 200c contains:

a charging station 202c, which corresponds to the charging station 202, which is explained in greater detail below with reference to FIG. 8,

a service provisioning computer or server 204c, which corresponds to the server 204, which is explained in greater detail below with reference to FIG. 9,

- an electronic cash register 206c, which is what the checkout 206 ^¬ ent, which is explained in detail below with reference to Figure 10, and / or

an optional shelf label 208c corresponding to the shelf label 208, which will be explained in greater detail below with reference to FIG.

An electric car 210c corresponds to the electric car 210, which will be explained in more detail below with reference to FIG.

Regarding the processes until payment is made to the Ausfüh ments to Figures 4 and 5. Thus, an arrow 220c corresponds to the arrow 220a or 220b and the operations associated therewith. An arrow 222c corresponds to the arrow 220a and 220b and related processes. An arrow 224c corresponds to the arrow 224a or 224b and the optional operations associated therewith. An arrow 250c corresponds to the arrow 250b and the operations associated therewith in the third method but optional.

In the method explained with reference to FIG. 6, the device 10, 110 is also included in the payment process, see arrow 300c. Thus, the identifier ID1 of the device 10 or 110 can be read at the cash register 206c. Likewise, the identifier ID2 stored in the device 10 or 110 of the charging station assigned to the device 10 or 110 can be read, for example for control purposes, for statistical purposes or for other purposes. In the device 10, 110 can also be noted when paying that the payment has been made. Thus, a release of the locking of the charging plug or other locking device only on the basis of the note in the device 10, 110 take place when it is discharged in the charging station / column 202d. A release from the cash register 206c may but need not be done.

At the cash register 206c, the device 10, 110 but also be reset to its initial state.

FIG. 7 shows operations at an electric filling station 202d according to a fourth method. The electric filling station 200d contains:

a charging station 202d, which corresponds to the charging station 202, which is explained in greater detail below with reference to FIG. 8,

a service providing computer or server 204d, which corresponds to the server 204, which is explained in more detail below with reference to FIG. 9,

an electronic cash register 206d, which corresponds to the cash register 206, which is explained in greater detail below with reference to FIG. 10, and / or

- A shelf label 208 d, which corresponds to the shelf label 208, which will be explained in more detail below with reference to FIG 11. An electric car 210d corresponds to the electric car 210, the un ^¬ th is explained in more detail with reference to FIG. 8 An arrow 220d corresponds to the arrow 220a, 220b or 220c and the related operations. An arrow 222d corresponds to the arrow 220a, 220b or 220c and the related operations. An arrow 224d corresponds to the arrow 224a, 224b or 224c and to the optional operations associated therewith. An arrow 250d corresponds to the

Arrow 250b and 250c and the associated in the context of the fourth method but optional operations. An arrow 300d corresponds to the arrow 300c and the related in Verbin ^¬-making processes, which likewise are optionally in the fourth method.

In the fourth method, the device 10, 110 is included in an electronic purchasing process. The device 10, 110 communicates with the shelf label 208d when shopping, see arrow 350d. For example. For example, the shelf label 208d includes an RFID tag that is read by the device 110, such as a price indication and / or a product indication. The purchase is confirmed, for example, via the keys 140 and 142 or rejected. Alternatively, the shelf label 208d and the device 110 include another interface for near field data transmission. The purchase data may also be sent from shelf label 208d or from device 110 to a central computer, e.g. to the computer 204d, in particular to control the cashier and to limit abuse, see arrow 352d.

At checkout 206d, the purchase is then paid for, with purchase-related identifiers being read from device 110 and used to determine the purchase price. In addition, the operations explained for the arrow 300c can also be carried out, see arrow 300d. After paying, for example, at the cash register 206d or at the charging station 206d, the purchase-related data is deleted from a memory of the device 110. FIG. 8 shows the structure of a charging station or charging station 202, which corresponds to the charging stations 202a to 202d. The La ^¬ destation 202 is eg. Only used for charging. Alternatively, in another embodiment, the charging station 202 may be used for discharging only. In a further embodiment, the loading station 202 may optionally for charging an electric vehicle 210 or to the A ^¬ dine be used from the electric vehicle 210th

The charging stations 202 may be a charging station and contain the following components:

a circuit breaker / inverter 402, e.g. from AC voltage to AC voltage or from AC voltage to DC voltage,

a control unit 404, e.g. containing a processor and a memory or a circuit arrangement without processor,

an output tray 406,

an optional input pocket 408, optionally in particular if a plurality of devices 110, 410 can be received in the loading station 200 and loading is carried out, for example, by opening a lining of the loading station 202,

- an optional further control device 410 wherein an on ^¬ acquisition times is not shown, or a plurality of further con troll ^¬ device,

a charging socket (or plug) 412, in particular according to a standard or standard for the charging of electric vehicles, e.g. IEC 61851 (International Electrotechnical Commision), type 2 or type 3 plug,

an optional control unit 414,

a mains connection 420, in particular to a public power supply network or to an energy store of several 100 KWh (kilowatt hours), and / or a communication connection 422, eg a LAN or WLAN, to which, for example, also the server 204 and the cash register 206 are connected. A permanent connection can be selected in place of the charging socket / plug 412 which, for example soldered. Or be ^¬ screwed. A lock can then be done on the electric car 210 or on the vehicle. A line 424 connects the circuit breaker / inverter

402 with the charging socket or with the charging plug 412. Via the line 426 can also be done by the control unit 404, a communication to the vehicle 210, i. a so-called power line communication (PLC). Alternatively, a separate data link, not shown, is used.

A control signal line 426 or a signal bus leads from the control unit 404 to the power switch 426. Via the control signal line 426, the control unit 404 can specify the parameters for the energy transmission from or to the vehicle 210 and then release or interrupt the energy transmission.

A control signal line 428 or a signal bus leads from the control unit 404 to a release device of the output ^¬ compartment 406. About the control signal line 428, the control unit 404 cause the output of the device 110, for example. After a charging cable has been inserted into the charging socket 412 and the parameters for the loading / unloading process.

Control signal lines between the control unit 404 and the optional input pocket 408 and the optional control unit 414 are not shown in FIG.

The electric car 210 corresponds to the electric cars 210a to 210d and includes, among others: a traction accumulator 440, for example a lithium-ion battery, and / or

- And an electric motor 442, which serves for locomotion of the vehicle 210.

The accumulator 440 can, for example, store an amount of energy in the range from 20 KWh up to 100 KWh, or more, for example, four wheel hub motors can be used instead of an electric motor 442. The vehicle 210 may be powered by electricity or may be a hybrid vehicle that also has a

Internal combustion engine contains. The electric car 210 is, for example, connected via a charging cable 416 to the charging station 200.

A characteristic ID2 is permanently assigned to the loading station 200, for example. An IPv4 (Internet Protocol version 4) or IPv6 ^(¬ In ternet Protocol version 6) Internet address. The identifier ID2 can be transmitted from the charging station 202 including the control unit 404 into the device 110 or 410, for example, using a transmitting device not shown in FIG. The transmitting device can also for

Transfer of other or additional data from the charging station 202 to the device 110 or 410, e.g. a starting value of a counter. The transmitting device may be a RFID (Radio Frequency Identification) writing instrument or a Bluetooth unit or infrared unit.

For example. between the charging station 202 and the electric car 210, the maximum charging current is communicated, the charging voltage and possibly also the type of voltage required, ie DC voltage or AC voltage. Communication is optional if, for example, the shape of the charging plug already determines which charging parameters are required. With inductive charging, there is no charging plug, so that communication should take place for the exchange of the charging parameters, unless they are dedicated charging stations. The parameters can also be set or entered manually at the charging station 202, see operating unit 414. 9 shows the construction of a server 204 corresponding to the Ser ^¬ Vern 204a to 204d. Instead of a server 204, one server per charging station 200, 202a to 202d can also be used. Functions accommodated in the server 204 can also be distributed to multiple servers.

The server 204 includes:

a processor 502,

a memory 504 in which program instructions executed by the processor 502 are stored, and / or

a transmitting and / or receiving unit 506.

Via the transmitting and / or receiving unit 506, the server 204 is connected to a wired or fiber-bound data transmission network, eg LAN, or to a wireless data transmission network, eg WLAN. The server via the transmitting and / or receiving unit 506 204 for example. To the charging ^¬ column or charging station 200, 202a to 202d and exchange data, if necessary, with wide ^¬ ren charging stations, see data transmission connection 510, as described above with reference to the Figures 4 to 7 has been explained. However, the server 204 can also exchange data with the cash register 206, 206a to 206d via the transmitting and / or receiving unit 506, see data transmission connection 512, as has been explained above with reference to FIGS. 4 to 7.

FIG. 10 shows the structure of a cash register 206 which corresponds to the cash registers 206a to 206d. The cash register 206 has as its basic function a billing function with which bills for the services of the electric filling station 200, 202a to 202d are prepared, in particular in connection with the methods explained with reference to FIGS. 4 to 7.

The cash register 206 contains, for example:

a processor 602,

a memory 604 storing program instructions executed by the processor 602,

a transmitting and / or receiving unit 606, and / or

a transmitting and / or receiving unit 608. The communication link 610 is a remote area communication link such as a LAN or WLAN. Via the data transmission connection 610, the cash register 206, 206a to 206d can, for example, exchange data with the server 204, 204a to 204d and / or with the charging station 202, 202a to 202d.

The communication link 612, however, is a communications link for close range, such as Bluetooth, RFID, IR, etc., the fund can over the communications link 612 206 206a-206d, for example. With the unit 10, exchange 110 Da ^¬ th.

A token charging station 620 can be connected to the cash register 206, with which the energy stores of the devices 10, 110 can be recharged, for example via an inductive charging process, wherein a suitable coil for energy transfer is located in the charging station 620. Alternatively or additionally, the token charging station 620 can also be used for deleting data in the devices 10, 110 or for resetting the devices 10, 110. The loading station 620 may be integrally joined ^¬ via a line or via a radio interface 622 to the cash register 206th FIG. 11 shows components of a shelf label 208 which corresponds to the shelf labels 208a to 208d. In addition to the shelf label ^¬ 208 there are a variety of other shelf labels for other goods in the electric filling station 200, 200a to 200d. The shelf label 208 includes, for example:

an optional text 702, e.g. for the description of the goods, the price o.a., and / or

an RFID tag 704, e.g. a coil, a data memory and a circuit contains.

Instead of the RFID tag 704 or additionally, a Bluetooth interface 706 can also be used. An optional electronic display unit 708 may replace the text 702 to allow a quick change of assortment. The shelf label 208, in particular the Bluetooth interface 706, can optionally also be connected to a data transmission network 710, eg a wireless radio network or a wired or fiber-bound network. Via the data ^¬ transmission network 710, to the example., The charging stations 202 and / or the server 204 and / or the cash register are connected 206, for example data may. Be transmitted, a user of the device 10, 110 selected goods label.

In connection with electronic purchasing systems, reference is made to DE 103 33 126 A1 of the Applicant (Siemens AG) and to DE 199 44 998 A of Symbol Technologies Inc. (now Motorola Solutions), which are hereby included in the disclosure of the present application. Furthermore, for all embodiments and for the introduction ^¬ line:

As a Bluetooth interface for the mentioned transmission in the near range is e.g. the device Blue2net 1, 2, 3 etc. of the applicant (Siemens AG) based on SieMo S50037 or a further development of this device suitable. Alternatively, devices from other manufacturers can be used.

Thus, a Bluetooth protocol stack is realized, e.g. under the use of:

PPP (Point to Point Protocol),

TCP / IP / UDP (Transfer Control Protocol / Internet Protocol / User Datagram Protocol),

- OBEX (Object Exchange Protocol), or

- WAE / WAP (Wireless Application Environment / Wireless Appli ^¬ cation Protocol). For the WLAN networks mentioned above, a WLAN protocol stack according to IEEE 802.11 (Institute of Electrical and Electro technical Engineers) is realized. However, other protocols / protocol stacks can also be used.

An example of an RFID reader is the device TS-W34 of the GiSmbH. Similar devices are also offered by a variety of other manufacturers. The 135 kHz frequency or another standardized RFID frequency can be used.

In the simplest case, the label 208 contains an RFID tag or transponder, eg HITAG1, 2, S, Q5, titanium and EM-4XX. The electric filling stations 200a to 200d, in addition to stations for electrical charging and columns for Verbrennungskraft ^¬ substances have.

The embodiments are not to scale and are not restrictive. Modifications in the context of expert action are possible. Although the invention in detail further illustrated by the preferred embodiment and has been be ^¬ enrolled, the invention is not limited by the disclosed examples and other variations kön- NEN by those skilled be derived therefrom without departing from the scope of the invention. The developments and refinements mentioned in the introduction can be combined with one another. The embodiments mentioned in the figure description can also be combined with each other. Furthermore, the developments and refinements mentioned in the introduction can be combined with the exemplary embodiments mentioned in the description of the figures.

Claims

claims

A method of charging or discharging an energy store (440) in a vehicle (210) comprising

Coupling a vehicle (210) and a station (202) to charge or discharge an energy store (440) in a vehicle (210),

Outputting an electronic device (10, 110) to the Benut ^¬ zer of the station (202)

Spending the time remaining to load or unload on the device (10, 110).

2. The method of claim 1, including transmitting (224, 250) a date indicating the duration of loading or unloading at least once from the station (202) to the device (10, 110),

or retransmitting (224, 250) data indicative of the duration of the charge or discharge from the station (202) to the device (10, 110).

A method according to any one of the preceding claims, including assigning a unique electronic license plate number (ID2) to the station (202) and associating a unique electronic license plate number (ID1) with the device (10, 110).

The method of claim 3, including storing the value of the tag data (ID2) of the station (202) and the tag data (ID1) value of the device (10, 110) in the device (10, 110).

A method according to any one of the preceding claims, including using (350, 300d) the device for shopping.

A method according to any one of the preceding claims, comprising using a first data transfer method (224) to transfer data to or from the device (10, 110) and using a second data transfer method (250) Transmission of data to or from the device, wherein the range of the first data transmission method (224) is less than the range of the second data transmission method (250), in particular less than half.

7. The method according to any one of the preceding claims, wherein an energy store of the device (10, 110) is inductively charged.

8. The method according to any one of the preceding claims, comprising reading (300) of data of the device (10, 110) in a payment process.

9. The method according to any one of the preceding claims, including delivery of the device (10, 110) in a payment process at a checkout (206) or after the payment process at the station (202).

10. The method according to any one of the preceding claims, wherein the device (10, 110) has a housing (12, 112) with a kreisför ^¬ shaped or elliptical cross-section.

11. A device (10, 110) for supporting the loading or Entla ^¬ dens of an energy storage device (440) in an electric vehicle (210), containing

a display unit (130),

a first data transfer unit (160) that sends and / or receives data in accordance with a first data transfer method,

a second data transfer unit (162) that sends and / or receives data according to a second data transfer method, the second data transfer method being different from the first data transfer method,

a control unit (152) which is connected to the display unit (170), to the first data transmission unit (160) and to the second data transmission unit (162), wherein the control unit (152) controls the display unit (170) in dependence on the received data, that one remaining Time to charge or discharge an energy storage (440) in an electric vehicle (210) on the display unit (170) or by the display unit (120 to 126) is displayed.

12. The device (10, 110) according to claim 11, comprising at least one, several or all of the following features:

a memory (M) for a license plate data (ID1), the device (10, 110) identifies, and / or or for a Kennzei ^¬ chendatum (ID2) which (a station (202) for loading or unloading the a vehicle 210),

a counting device (14),

an inductive charging device (150) for charging an energy storage ^¬ the device (10, 110),

an acoustic output device (132, 134) or a vibration device,

an input unit containing at least one input element (140) or at least two input elements (140, 142).

13. Device (10, 110) according to claim 11 or 12, wherein the device (10, 110) in a method according to one of the preceding

Claims is used.

14. Station (202) for charging or discharging an energy store (440) of a vehicle (210), comprising

an energy transfer device (412) for transferring electrical energy to or from the energy storage device (440), an output device (406) for outputting an electronic device (10, 100) indicating the remaining time for charging or discharging.

15. station (202) according to claim 14, comprising an input device (408) for receiving the device (10, 110) after loading or after unloading.