DE102022121235A1 - Vehicle charging communication device for establishing a charging communication connection - Google Patents

Abstract

The present invention relates to a vehicle charging communication device (10) for establishing a charging communication connection between a vehicle control device (200) of an electrically driven motor vehicle (500), in particular a commercial vehicle, and a charging station control device of a charging station (600), wherein an electrical charging process of a Battery system of the motor vehicle (500) can be controlled by means of the charging station (600) by the vehicle control device (200) and the charging station control device via the charging communication connection. The vehicle charging communication device (10) comprises a contact interface (20) for signaling contact of the vehicle charging communication device with a vehicle charging interface (300), which can be connected via a charging cable (400) to a charging station-charging interface of the charging station (600), several Transceivers (30, 40, 50), which can be connected to the vehicle control device (200) for signaling purposes, and a configuration unit (100), preferably a microcontroller, which is designed to configure the vehicle charging communication device (10), one of the several Select transceiver (30, 40, 50) and connect it to the contact interface (20) for signaling purposes. The invention further relates to an electrically drivable motor vehicle (500) with the charging communication connection (10), and a method (1000) for configuring an electrically drivable motor vehicle (500).

Description

The present invention relates to a vehicle charging communication device for establishing a charging communication connection, an electrically drivable motor vehicle with the charging communication connection, and a method for configuring an electrically drivable motor vehicle.

To establish charging communication connections between a vehicle control device of an electrically driven motor vehicle, e.g. B. a vehicle-side “Electric Vehicle Charge Controller”, EVCC, and a charging station control device, e.g. B. a charging station-side “Supply Equipment Communication Controller”, SECC, it is currently common practice to either only implement the respective charging communication interface for a specific target market, e.g. B. Single-Ended PLC for Europe or North America, or to use multiple independent hardware interfaces to implement multiple charging communication interfaces.

This means that for the implementation of a vehicle-side charging communication device, e.g. B. To enable communication for the two international charging standards CCS and CHAdeMO, at least four pins must be provided on the charging communication interface, since CCS and ChAdeMO are based on different communication technologies. For CCS, two pins for (single-ended) PLC according to ISO 15118-3 and for CHAdeMO two further pins for CAN according to CHAdeMO 2.0 would be necessary. In the future, further charging standards will be added that require additional physical layers or are based on other communication technologies, e.g. B. Ethernet or differential PLC, the number of necessary pins and thus also the weight, the volume and the development or manufacturing costs of the charging communication device multiply. It would also lead to the need for multiple, differently designed wire harnesses for each target market.

It is therefore the object of the invention to provide such a solution with which the disadvantages of previous solutions are at least partially avoided. In particular, it is an object of the invention to provide the most efficient technology possible, which enables charging communication during charging processes of an electrically driven vehicle for different charging standards or communication technologies.

The task is solved by the features of the independent claims. Advantageous further developments are specified in the dependent claims and the description.

According to a first general aspect of the invention, a vehicle charging communication device is provided for establishing a charging communication connection between a vehicle control device of an electrically driven motor vehicle, in particular a commercial vehicle, and a charging station control device of a charging station. An electrical charging process of a battery system of the motor vehicle using the charging station can be controlled by the vehicle control device and the charging station control device via the charging communication connection.

The vehicle charging communication device comprises a contact interface for (preferably direct) signaling contacting (and/or connection) of the vehicle charging communication device with a vehicle charging interface, in particular a (vehicle-side) plug coupling. The vehicle charging interface can be connected to a charging station charging interface of the charging station via a charging cable.

The vehicle charging communication device further comprises a plurality of (differently designed) transceivers, which can be connected (preferably directly) to the vehicle control device for signaling purposes.

The vehicle charging communication device further comprises a configuration unit, preferably a microcontroller, which is designed to configure the vehicle charging communication device to (precisely) select one of the multiple transceivers and to connect (the selected one of the multiple transceivers) to the contact interface in terms of signals.

The vehicle charging communication device can expediently be installed in an electrically driven motor vehicle and can in particular be designed as a common part (for different target markets).

The vehicle charging communication device can in particular be designed without a (high-voltage) power line for supplying (high-voltage) power from the charging station to the battery system of the motor vehicle (during an electrical charging process). In other words, during an electrical charging process, the vehicle charging communication device can only be used to establish the charging communication connection between the vehicle control device and the charging station control device. The (high-voltage) power supply can be carried out (on the vehicle side) via separate components of the motor vehicle.

The vehicle charging communication device can be designed to forward data and/or signals, in particular between the vehicle control device and the charging station control device.

The present disclosure thus creates a solution that makes it possible to use the vehicle charging communication device according to the invention for different charging standards or different communication technologies, with only one configuration being necessary before installation in the motor vehicle and before commissioning in order to control the vehicle charging. Charging communication device can be flexibly adapted to the desired charging standard.

The vehicle charging communication device can therefore be used for various target markets in which different charging standards are applied for electrically charging electrically powered motor vehicles. Accordingly, the development and manufacturing costs for vehicle-side communication arrangements can be significantly reduced.

The vehicle charging communication device can also be referred to as a (vehicle-side) charging communication interface. Because the vehicle charging communication device can be configured for a desired charging standard and thus for one of several physical layers by connecting one of the multiple transceivers to the contact interface, the vehicle charging communication device can also be used as a multi-PHY charging communication interface and/or as a “charging communication interface for electric vehicles over several physical layers” (English: “Multi-Physical Layer Charging Communication Interface for Electric Vehicles”).

According to a special embodiment, the configuration unit can be designed exclusively for configuring the vehicle charging communication device and/or can be non-functional when installed within the motor vehicle. This creates a solution that is as simple and inexpensive as possible and does not require configuring the vehicle charging communication device during operation of the motor vehicle or during an electrical charging process of the motor vehicle. Instead, the configuration takes place once before the vehicle charging communication device is installed in the motor vehicle. Accordingly, the configuration unit does not have to be connected to components of the motor vehicle, e.g. a control unit, in terms of signals or electrically during installation.

If the configuration unit is a microcontroller, the configuration can be done by programming and/or feeding in software to set the desired configuration. Furthermore, it is also conceivable that the configuration unit includes a hardware switch. The hardware switch can be moved to an appropriate position to set the desired configuration.

According to a further embodiment, after configuration, a communication connection can be established between the selected one of the plurality of transceivers and the contact interface.

According to one embodiment, the multiple transceivers may include an Ethernet transceiver for communicating via Ethernet communication (e.g. 100Base-T1 or 10Base-T1S), a CAN (Controller Area Network) transceiver for communicating via CAN communication, and/or or a PLC transceiver (“Powerline Communication” transceiver) for communication using powerline communication (e.g. single-ended PLC), in particular in accordance with ISO 15118-3. Preferably, the plurality of transceivers can, in particular exclusively, include the Ethernet transceiver, the CAN transceiver and the PLC transceiver. By providing all three transceivers mentioned, all current and future conceivable physical layers (or charging standards) of charging communication between an electrically driven vehicle and a charging station can be advantageously supported.

According to one embodiment variant, the contact interface can (exactly) comprise a pilot contact, CP (“Control Pilot”), in particular a CP pin, and (exactly) a protective conductor contact, PE (“Protective Earth”), in particular a PE pin. The CP and the PE can be connectable to one of the several transceivers to establish a, preferably analog, communication connection. The two contacts CP and PE can be used with the z. B. correspond to CP and PE contacts known from the CCS charging standard.

According to one embodiment, the contact interface can, in particular, comprise two data transmission contacts, in particular data transmission pins. The two data transmission contacts can include a plus contact and a minus contact. The data transmission contacts can be connectable to one of the multiple transceivers to establish a digital communication connection. The two data transmission contacts can e.g. B. with the configurations known from the CHAdeMO charging standard clocks CAN-H (“CAN-Bus-H”) and CANL (“CAN-Bus L”) or correspond to the contacts S+ and S- known from the ChaoJi charging standard.

The contact interface can in particular include exactly two contacts, namely the CP and the PE, or exactly four contacts, namely the CP, the PE and the two data transmission contacts. As a result, all current and future conceivable charging standards of charging communication between an electrically powered vehicle and a charging station can be supported in an advantageous manner and the contact interface can be connected to a vehicle charging interface in accordance with a current and future conceivable charging standard. It is not necessary to provide separate contacts for each intended charging standard or for each physical layer. In this way, compact hardware is possible for worldwide use, which saves costs, space and weight due to the small number of contacts.

According to one embodiment, the configuration unit for configuring the vehicle charging communication device can be designed to select a PLC transceiver of the plurality of transceivers and, preferably to communicate using the CCS (Combined Charging System) communication protocol, with the CP and the PE to connect the contact interface for signaling purposes. This allows the vehicle charging communication device e.g. B. can be configured and used for the CCS charging standard.

According to an embodiment variant, the configuration unit for configuring the vehicle charging communication device can be designed to select a CAN transceiver from the plurality of transceivers and, preferably for communication by means of the CHAdeMO (“CHArge de MOve”), GB/T and/or ChaoJi Communication protocol to be connected to the data transmission contacts of the contact interface for signaling purposes. This allows the vehicle charging communication device e.g. B. can be configured and used for the CHAdeMO, GB/T and/or ChaoJi charging standard.

According to one embodiment, the configuration unit for configuring the vehicle charging communication device can further be designed to additionally connect the selected CAN transceiver to the CP and the PE of the contact interface via signaling technology. This allows the vehicle charging communication device e.g. B. can be configured and used for charging communication with superimposed digital communication via the basic communication signals for future charging standards.

According to one embodiment, the configuration unit for configuring the vehicle charging communication device can be designed to select a PLC transceiver from the plurality of transceivers and to connect it to the data transmission contacts of the contact interface via signaling technology. This allows the vehicle charging communication device to be used for differential PLC communication, e.g. B. in preparation for the standardization for MCS (“Megawatt Charging System”), expected to be standardized in ISO 15118-6, and for other future charging standards.

According to one embodiment, the configuration unit for configuring the vehicle charging communication device can be designed to select an Ethernet transceiver from the plurality of transceivers and to connect it to the data transmission contacts of the contact interface via signaling technology. This allows the vehicle charging communication device to be configurable and usable for future charging standards.

Furthermore, it is conceivable that the configuration unit for configuring the vehicle charging communication device can also be designed to signally connect the selected Ethernet transceiver or PLC transceiver in addition to the data transmission contacts to the CP and the PE of the contact interface.

According to one embodiment variant, the vehicle charging communication device can further comprise a switching arrangement that can be switched into one of several switching configurations by the configuration unit. Each of the multiple switching configurations can be designed to establish a communication connection between the contact interface and (precisely) one of the multiple transceivers.

The switching arrangement may include signal lines and/or switches arranged between the contact interface and the plurality of transceivers. Each of the switches can be arranged in such a way that (individually) one of the signal lines can be closed or opened. In other words, each of the switches can be arranged in such a way that the contact interface can be connected via the switching arrangement to (exactly) one of the several transceivers for signaling purposes. The configuration unit can be designed to open or close (i.e. control and/or configure) the switches (individually and/or independently of one another). The switches can be connected to the configuration unit in terms of signals and/or electrically and can be opened or closed by the configuration unit (individually and/or independently of one another).

The switching arrangement can also z. B. include at least one terminating resistor (e.g. at least one CAN terminating resistor) and / or at least one filter circuit.

The switching arrangement can z. B. include an Ethernet output circuit for signaling (and/or electrical) coupling of the Ethernet transceiver and the switching arrangement. The Ethernet output circuitry can include at least one decoupling capacitor and at least one choke.

The switching arrangement can z. B. include a PLC output circuit for signaling (and/or electrical) coupling of the PLC transceiver and the switching arrangement. The PLC output circuit can include at least one transformer.

Through the various components of the switching arrangement, the contact interface can be connected to each of the several transceivers in terms of signals and all current and future conceivable physical layers of charging communication between an electrically driven motor vehicle and a charging station can be supported, with individual parts being switched on and off as required The switching arrangement can provide the best possible properties for the respective physical layer.

According to one embodiment, each of the multiple switching configurations can further be designed to establish a further communication connection between the contact interface and/or the selected one of the multiple transceivers with a further interface for monitoring a (high-voltage) power supply from the charging station to the battery system of the motor vehicle. Thus, the communication connection established between the selected one of the plurality of transceivers and the contact interface can serve not only for data exchange between a vehicle control device and a charging station control device, but also for acquiring monitoring data of a power supply during the electrical charging process. The vehicle charging communication device thus enables the vehicle control device and/or the charging station control device to receive and evaluate the monitoring data, so that e.g. B. the power supply can be stopped in the event of irregularities.

According to one embodiment, the vehicle charging communication device may further comprise a circuit board on which the contact interface, the plurality of transceivers, the configuration unit and the switching arrangement are arranged. The vehicle charging communication device can therefore be designed to be compact and can be easily installed in a motor vehicle.

According to a further general aspect of the invention, an electrically driven motor vehicle, in particular a commercial vehicle, is provided.

The motor vehicle includes the vehicle charging communication device as disclosed herein, a battery system for electrically driving the motor vehicle, and a vehicle charging interface that is connected in terms of signals to the contact interface of the vehicle charging communication device and can be connected to a charging station charging interface of a charging station via a charging cable.

The motor vehicle further comprises a vehicle control device which is designed to communicate with a charging station control device of the charging station via a charging communication connection established by means of the vehicle charging communication device and to control an electrical charging process of the battery system.

The present disclosure therefore further provides an electrically driven motor vehicle that can be easily configured for a specific target market. All that is necessary is to configure the vehicle charging communication device via the configuration unit before installation in the motor vehicle and before commissioning in order to flexibly adapt the vehicle charging communication device to the target market and the desired charging standard. In other words, a motor vehicle developed interoperably for several target markets is provided, since the vehicle charging communication device supports the corresponding interfaces for charging communication on the hardware side.

According to one embodiment, the vehicle charging interface can be a plug coupling, preferably a CCS, CHAdeMO, GB/T or ChaoJi plug coupling. The vehicle charging interface can alternatively be an MCS interface, preferably an MCS plug coupling, in particular in accordance with IEC TS 63379.

According to one embodiment, the contacts of the contact interface (in particular the CP, the PE and the two data transmission contacts) of the vehicle charging communication device, which are signal-connected to one (selected) of the multiple transceivers of the vehicle charging communication device, can also be connected to corresponding contacts of the vehicle charging device interface must be contacted (e.g. connected) via signal technology. For example, the contacts CP and PE of the contact interface can be connected to corresponding CP and PE contacts of the vehicle charging interface, e.g. B. a CCS plug coupling.

According to one embodiment variant, the configuration unit of the vehicle charging communication device can be connected exclusively to other components of the vehicle charging communication device in terms of signaling, mechanically and/or electrically and/or can be non-functional in an installed state within the motor vehicle (and/or during an electrical charging process). This creates a solution that is as simple and inexpensive as possible and does not require configuring the vehicle charging communication device during operation of the motor vehicle or during an electrical charging process of the motor vehicle.

According to a further general aspect of the invention, a method for configuring an electrically driven motor vehicle, preferably a commercial vehicle, is provided.

The method includes providing a vehicle charging communication device, preferably the vehicle charging communication device as disclosed herein, and providing a vehicle charging interface connectable to a charging station charging interface of a charging station via a charging cable.

The method further includes configuring the vehicle charging communication device (by means of a configuration unit of the vehicle charging communication device) by selecting one of a plurality of transceivers of the vehicle charging communication device and signally connecting (the selected one of the plurality of transceivers) to a contact interface of the vehicle charging communication device.

The method further includes contacting the contact interface with the vehicle charging interface via signaling technology.

To avoid repetition, features previously disclosed purely in accordance with the device should also be considered disclosed in accordance with the method and can be claimed.

According to one embodiment, the method can further include installing the vehicle charging communication device and the vehicle charging interface in the electrically drivable motor vehicle after configuration and preferably after signaling contact.

• 1 eine schematische Darstellung einer Fahrzeug-Ladekommunikationsvorrichtung gemäß einem Ausführungsbeispiel der vorliegenden Offenbarung;
• 2 eine schematische Darstellung eines Kraftfahrzeugs gemäß einem Ausführungsbeispiel der vorliegenden Offenbarung; und
• 3 einen schematischen Verfahrensablauf gemäß einem Ausführungsbeispiel der vorliegenden Offenbarung.

The previously described embodiments, variants and features of the invention can be combined with one another in any way. Further details and advantages of the invention are described below with reference to the accompanying drawings. Show it:

• 1 a schematic representation of a vehicle charging communication device according to an embodiment of the present disclosure;
• 2 a schematic representation of a motor vehicle according to an embodiment of the present disclosure; and
• 3 a schematic process flow according to an exemplary embodiment of the present disclosure.

1 shows a vehicle charging communication device 10 for establishing a charging communication connection between a vehicle control device 200 and a charging station control device. The vehicle charging communication device 10 includes a contact interface 20, a plurality of transceivers 30, 40, 50 and a configuration unit 100.

The contact interface 20 is used for signaling contact between the vehicle charging communication device 10 and a vehicle charging interface and can have several contacts. The multiple contacts can include a pilot contact, CP, in particular a CP pin, and a protective conductor contact, PE, in particular a PE pin, which can be connected to one of the multiple transceivers 30, 40, 50 to establish a, preferably analog, communication connection . Alternatively or additionally, the multiple contacts can further comprise two data transmission contacts PHY+, PHY-, in particular data transmission pins, which can be connected to one of the multiple transceivers 30, 40, 50 to establish a digital communication connection. The contacts CP, PE, PHY+ and PHY- can each be designed as a contact pin.

The multiple transceivers 30, 40, 50 can be connected to the vehicle control device 200 for signaling purposes. The multiple transceivers 30, 40, 50 can be an Ethernet transceiver 30 for communication via Ethernet communication, a CAN transceiver 40 for communication via CAN communication, and/or a PLC transceiver 50 for communication via powerline communication, in particular according to ISO 15118-3. Powerline communication can include differential PLC communication, e.g. B. is expected to be standardized in ISO 15118-6.

The configuration unit 100 is designed to configure the vehicle charging communication device 10 to select one of the several transceivers 30, 40, 50 and to connect it to the contact interface 20 in terms of signals. The configuration unit 100 can in particular be designed exclusively for configuring the vehicle charging communication device 10.

For this purpose, the vehicle charging communication device 10 can further comprise a switching arrangement 60, which can be switched into one of several switching configurations by the configuration unit 100. Each of the multiple switching configurations can be designed to establish a communication connection between the contact interface 20 and one of the multiple transceivers 30, 40, 50.

1. 1. Zur Herstellung einer Kommunikationsverbindung, die (Single-Ended-)PLC-Kommunikation z. B. den CCS-Ladestandard bzw. das CSS-Kommunikationsprotokoll unterstützt, kann die Konfigurationseinheit 100 zum Konfigurieren der Fahrzeug-Ladekommunikationsvorrichtung 10 dazu ausgebildet sein, den PLC-Transceiver 50 der mehreren Transceiver 30, 40, 50 auszuwählen und mit dem CP und dem PE der Kontaktschnittstelle 20 signaltechnisch zu verbinden. Dies kann z. B. dadurch erfolgen, dass die Konfigurationseinheit 100 lediglich die Schalter S_SE und S_PLC schließt und die weiteren Schalter öffnet. So ist eine Kommunikationsverbindung zwischen dem PLC-Transceiver 50 und den Kontakten CP und PE der Kontaktschnittstelle 20 hergestellt. Die weiteren Transceiver 30, 40 sind weiterhin nicht mit der Kontaktschnittstelle 20 signaltechnisch verbunden. Umfasst die Kontaktschnittstelle weitere Kontakte wie PHY+ und PHY-, so sind diese weiteren Kontakte weiterhin mit keinem der mehreren Transceiver 30, 40, 50 signaltechnisch verbunden.
2. 2. Zur Herstellung einer Kommunikationsverbindung, die CAN-Kommunikation z. B. für das CHAdeMO-, GB/T- (bzw. GB/T 2015-) oder ChaoJi-Kommunikationsprotokoll unterstützt, kann die Konfigurationseinheit 100 zum Konfigurieren der Fahrzeug-Ladekommunikationsvorrichtung 10 dazu ausgebildet sein, den CAN-Transceiver 40 auszuwählen und mit den Datenübertragungskontakten PHY+, PHY- der Kontaktschnittstelle 20 signaltechnisch zu verbinden. Dies kann z. B. dadurch erfolgen, dass die Konfigurationseinheit 100 lediglich den Schalter S_CAN schließt und die weiteren Schalter öffnet. So ist eine Kommunikationsverbindung zwischen der CAN-Transceiver 40 und den Kontakten PHY+ und PHY- hergestellt. Die Kommunikationsverbindung verläuft dabei über einen CAN-Abschlusswiderstand, der aus einer Reihenschaltung der Widerstände R1 und R2 gebildet sein kann. Die weiteren Transceiver 30, 50 sind weiterhin nicht mit der Kontaktschnittstelle 20 signaltechnisch verbunden. Umfasst die Kontaktschnittstelle weitere Kontakte wie CP und PE, so sind diese weiteren Kontakte weiterhin mit keinem der mehreren Transceiver 30, 40, 50 signaltechnisch verbunden.
3. 3. Zur Herstellung einer Kommunikationsverbindung, die Ethernet-Kommunikation, z. B. als Vorhalt für künftige Ladestandards, unterstützt, kann die Konfigurationseinheit 100 zum Konfigurieren der Fahrzeug-Ladekommunikationsvorrichtung 10 dazu ausgebildet sein, den Ethernet-Transceiver 30 auszuwählen und mit den Datenübertragungskontakten PHY+, PHY- der Kontaktschnittstelle 20 signaltechnisch zu verbinden. Dies kann z. B. dadurch erfolgen, dass die Konfigurationseinheit 100 lediglich den Schalter S_ETH schließt und die weiteren Schalter öffnet. So ist eine Kommunikationsverbindung zwischen dem Ethernet-Transceiver 30 und den Kontakten PHY+ und PHY- hergestellt. Die weiteren Transceiver 40, 50 sind weiterhin nicht mit der Kontaktschnittstelle 20 signaltechnisch verbunden. Umfasst die Kontaktschnittstelle weitere Kontakte wie CP und PE, so sind diese weiteren Kontakte weiterhin mit keinem der mehreren Transceiver 30, 40, 50 signaltechnisch verbunden.
4. 4. Zur Herstellung einer Kommunikationsverbindung, die Differential-PLC-Kommunikation, z. B. als Vorhalt für künftige Ladestandards, zur Übertragung von digitalen Daten unterstützt, kann die Konfigurationseinheit 100 zum Konfigurieren der Fahrzeug-Ladekommunikationsvorrichtung 10 dazu ausgebildet sein, den PLC-Transceiver 50 auszuwählen und mit den Datenübertragungskontakten PHY+, PHY- der Kontaktschnittstelle 20 signaltechnisch zu verbinden. Dies kann z. B. dadurch erfolgen, dass die Konfigurationseinheit 100 lediglich den Schalter S_PLC schließt und die weiteren Schalter öffnet. So ist eine Kommunikationsverbindung zwischen der PLC-Transceiver 50 und den Kontakten PHY+ und PHY- hergestellt. Die weiteren Transceiver 30, 40 sind weiterhin nicht mit der Kontaktschnittstelle 20 signaltechnisch verbunden. Umfasst die Kontaktschnittstelle weitere Kontakte wie CP und PE, so sind diese weiteren Kontakte weiterhin mit keinem der mehreren Transceiver 30, 40, 50 signaltechnisch verbunden.

The switching arrangement 60 may include signal lines arranged between the contact interface 20 and the plurality of transceivers 30, 40, 50. The switching arrangement 60 can further comprise a plurality of switches which are connected to the configuration unit 100 in terms of signals and/or electrically and can be opened or closed independently of one another by the configuration unit 100. Each of the switches can be arranged in such a way that the contact interface 20 can be connected via the switching arrangement 60 to exactly one of the several transceivers 30, 40, 50 for signaling purposes. The multiple switches can e.g. B. include the switches S_SE, S_ETH, S_PLC, S_CAN, S_SBC. Each of the plurality of switch configurations includes a predetermined position (open or closed) for each of the plurality of switches. This can result in e.g. B. the following four switching configurations result.

1. 1. To establish a communication connection, the (single-ended) PLC communication e.g. B. supports the CCS charging standard or the CSS communication protocol, the configuration unit 100 for configuring the vehicle charging communication device 10 can be designed to select the PLC transceiver 50 of the plurality of transceivers 30, 40, 50 and with the CP and the PE the contact interface 20 to be connected in terms of signaling. This can e.g. B. done by the configuration unit 100 only closing the switches S_SE and S_PLC and opening the other switches. A communication connection is thus established between the PLC transceiver 50 and the contacts CP and PE of the contact interface 20. The other transceivers 30, 40 are still not connected to the contact interface 20 for signaling purposes. If the contact interface includes additional contacts such as PHY+ and PHY-, these additional contacts are still not connected in terms of signals to any of the multiple transceivers 30, 40, 50.
2. 2. To establish a communication connection, CAN communication e.g. B. for the CHAdeMO, GB/T (or GB/T 2015) or ChaoJi communication protocol, the configuration unit 100 for configuring the vehicle charging communication device 10 can be designed to select the CAN transceiver 40 and communicate with it Data transmission contacts PHY+, PHY- of the contact interface 20 to be connected in terms of signals. This can e.g. B. done by the configuration unit 100 only closing the switch S_CAN and opening the other switches. This creates a communication connection between the CAN transceiver 40 and the PHY+ and PHY- contacts. The communication connection runs via a CAN terminating resistor, which can be formed from a series connection of the resistors R1 and R2. The other transceivers 30, 50 are still not connected to the contact interface 20 for signaling purposes. If the contact interface includes additional contacts such as CP and PE, these additional contacts are still not connected in terms of signals to any of the multiple transceivers 30, 40, 50.
3. 3. To establish a communication connection, the Ethernet communication, e.g. B. as a reserve for future charging standards, the configuration unit 100 for configuring the vehicle charging communication device 10 can be designed to select the Ethernet transceiver 30 and to connect it to the data transmission contacts PHY+, PHY- of the contact interface 20 in terms of signals. This can e.g. B. done by the configuration unit 100 only closing the switch S_ETH and opening the other switches. A communication connection is thus established between the Ethernet transceiver 30 and the contacts PHY+ and PHY-. The other transceivers 40, 50 are still not connected to the contact interface 20 for signaling purposes. If the contact interface includes additional contacts such as CP and PE, these additional contacts are still not connected in terms of signals to any of the multiple transceivers 30, 40, 50.
4. 4. To establish a communication connection, the differential PLC communication, e.g. B. as a provision for future charging standards, supported for the transmission of digital data, the configuration unit 100 for configuring the vehicle charging communication device 10 can be designed to select the PLC transceiver 50 and with the Data transmission contacts PHY+, PHY- of the contact interface 20 to be connected in terms of signals. This can e.g. B. done by the configuration unit 100 only closing the switch S_PLC and opening the other switches. A communication connection is thus established between the PLC transceiver 50 and the contacts PHY+ and PHY-. The other transceivers 30, 40 are still not connected to the contact interface 20 for signaling purposes. If the contact interface includes additional contacts such as CP and PE, these additional contacts are still not connected in terms of signals to any of the multiple transceivers 30, 40, 50.

Each of the plurality of switching configurations can further be designed to establish a further communication connection between the contact interface 20 and/or the selected one of the plurality of transceivers 30, 40, 50 with a further interface 90 for monitoring a power supply from the charging station to the battery system of the motor vehicle.

This further communication connection can be established via one of the two sub-switching arrangements 70, 80. In addition to signal lines, these sub-switching arrangements 70, 80 can also contain other components, e.g. B. include resistors, capacitors and / or diodes.

The first sub-switching arrangement 70 can, for. B. be a communication circuit according to IEC 61851 and / or can be integrated if the contacts CP and PE are connected to one of the several transceivers 30, 40, 50 in terms of signaling. Furthermore, the first sub-switching arrangement 70 can also be integrated into the further communication connection if the contacts PHY+, PHY- of the contact interface 20 are connected in terms of signaling to one of the several transceivers 30, 40, 50. For this purpose, the switches S_SE must also be closed by the configuration unit 100. The first sub-switching arrangement 70 can, for. B. be referred to as “CP Basis Communication Circuit”.

The second sub-switching arrangement 80 can be integrated into the further communication connection instead of (or in addition to) the first sub-switching arrangement 70. In particular, this can be the case for the switching configuration if all four contacts CP, PE, PHY+ and PHY- of the contact interface 20 are connected to the CAN transceiver 40 in terms of signals. To do this, the additional switch S_SBC, which can also be closed or opened by the configuration unit 100, must be closed, and the switches S_SE must be opened. By means of the second sub-switching arrangement 80, which z. B. can be referred to as “Superimposed Basic Communication Circuit”, analog basic communication can also be superimposed over the digital signals that are transmitted via the PHY+ and PHY- contacts. The CP is not used for this.

If the second sub-switching arrangement 80 is integrated, the first sub-switching arrangement 70 can be intended to provide a voltage between the “PHY+/PHY-circuit”, e.g. B. via a voltage tap between R1 and R2 and the PE.

The vehicle charging communication device 10, which is designed in particular as a common part, can further comprise a circuit board on which the contact interface 20, the plurality of transceivers 30, 40, 50, the configuration unit 100 and the switching arrangement 60 are arranged.

2 shows an example of an electrically operable motor vehicle 500, in particular a commercial vehicle, with the previously described vehicle charging communication device 10, wherein the motor vehicle 500 can be connected to a charging station 600 for an electrical charging process via a charging cable 400.

The motor vehicle 500 further includes a battery system (not shown) for electrically driving the motor vehicle 500, a vehicle charging interface 300 and the vehicle control device 200.

The vehicle charging interface 300 is expediently arranged on an outside of the motor vehicle 500 and can be connected to the charging station 600 via the charging cable 400. The vehicle charging interface 300 can in particular be a plug coupling, preferably a CCS, CHAdeMO, GB/T, ChaoJi or MCS plug coupling.

The vehicle charging interface 300 is further connected to the contact interface 20 of the vehicle charging communication device 10 in terms of signals. In this case, contacts of the contact interface 20 of the vehicle charging communication device 10, which are connected in terms of signals to the selected one of the several transceivers 30, 40, 50 of the vehicle charging communication device 10, are expediently contacted in terms of signals with corresponding contacts of the vehicle charging interface 300. If the vehicle charging communication device 10 is configured for the CSS charging standard, for example, the contacts CP and PE of the contact interface 20, e.g. B. via signal lines 310-1 and 310-2, with the corresponding contacts CP and PE of the vehicle charging interface 300 contacted in terms of signaling.

The vehicle control device 200 is designed to communicate with a charging station control device (not shown) of the charging station 600 via a charging communication connection established by means of the vehicle charging communication device 10 and to control an electrical charging process of the battery system.

The vehicle control device 200 is expediently connected in terms of signals at least to the transceiver of the plurality of transceivers 30, 40, 50, which is connected in terms of signals to the contact interface 20. For example, if the vehicle charging communication device 10 is configured for the CSS charging standard, the vehicle control device 200, e.g. B. via signal line 210, connected to the PLC transceiver 50 for signaling purposes.

If the motor vehicle 500 is now connected to the charging station 600 (signalling, electrical and mechanical) via the charging cable 400 for an electrical charging process of the battery system of the motor vehicle 500, a charging communication connection can be established between the vehicle control device 200 and the charging station control device.

This charging communication connection is via at least one signal line of the charging cable 400, the signaling contact between the vehicle charging interface 300 and the vehicle charging communication device 10 (e.g. the signal lines 310-1, 310-2), and the signaling connection between the vehicle -Charging communication device 10 and the vehicle control device 200 (e.g. the signal line 210). Within the vehicle charging communication device 10, the charging communication connection is established accordingly via the communication connection set by the configuration unit 100. Thus, the electric charging process can be controlled by the vehicle control device 200 and the charging station control device via the charging communication link.

3 shows an exemplary course of a method 1000 for configuring an electrically driven motor vehicle 500.

In steps S1 and S2, a vehicle charging communication device, preferably the vehicle charging communication device 10, and the vehicle charging interface 300 are provided.

In step S3, the vehicle charging communication device 10 is configured by selecting one of the plurality of transceivers 30, 40, 50 of the vehicle charging communication device and signally connecting it to the contact interface of the vehicle charging communication device.

In step S4, the contact interface 20 is contacted (i.e. connected) with the vehicle charging interface 300 in terms of signals.

In particular, it can be provided that steps S1-S3 and preferably also step S4 take place before the vehicle charging communication device 10 and the vehicle charging interface 300 are installed in the electrically drivable motor vehicle 500.

It should be emphasized that the vehicle charging communication device 10 is preferably configured only once, during manufacture or before the motor vehicle 500 is put into operation. A configuration during operation of the motor vehicle 500 and before or during an electrical charging process is preferably not provided. So the configuration unit 100 can be installed in the motor vehicle 500, for example. B. be connected exclusively to other components of the vehicle charging communication device 10 in terms of signals, mechanically and / or electrically and / or be non-functional.

The invention is not limited to the preferred embodiments described above. Rather, a large number of variants and modifications are possible, which also make use of the inventive idea and therefore fall within the scope of protection. In particular, the invention also claims protection for the subject matter and features of the subclaims, regardless of the claims referred to. In particular, the individual features of the independent claims are each disclosed independently of one another. In addition, the features of the subclaims are also disclosed independently of all features of the independent claims.

Reference symbol list

10

Vehicle charging communication device

20

Contact interface

30

Ethernet transceiver

40

CAN transceiver

50

PLC transceiver

60

Switching arrangement

70

First partial switching arrangement

80

Second sub-switching arrangement

90

Interface for monitoring a power supply

100

Configuration unit

200

Vehicle control device

210

Signal line

300

Vehicle charging interface

310-1,310-2

Signal line

400

Charging cable

500

motor vehicle

600

Charging station

1000

Proceedings

C.P

Pilot contact

P.E

Protective conductor contact

PHY+, PHY-

Data transfer contact

S_SE, S_ETH, 1 S_PLC, S_CAN, S_SBC

Switch

S1, S2, S3, S4

Procedural step

Claims (17)

Vehicle charging communication device (10) for establishing a charging communication connection between a vehicle control device (200) of an electrically drivable motor vehicle (500), in particular a commercial vehicle, and a charging station control device of a charging station (600), wherein an electrical charging process of a battery system of the motor vehicle (500 ) can be controlled by means of the charging station (600) by the vehicle control device (200) and the charging station control device via the charging communication connection, comprising: a contact interface (20) for signaling contact of the vehicle charging communication device with a vehicle charging interface (300), which can be connected to a charging station charging interface of the charging station (600) via a charging cable (400); a plurality of transceivers (30, 40, 50), which can be connected to the vehicle control device (200) for signaling purposes; and a configuration unit (100), preferably a microcontroller, which is designed to configure the vehicle charging communication device (10), select one of the several transceivers (30, 40, 50) and connect it to the contact interface (20) in terms of signals. Vehicle charging communication device (10). Claim 1 , wherein the plurality of transceivers (30, 40, 50) comprise an Ethernet transceiver (30) for communication via Ethernet communication, a CAN transceiver (40) for communication via CAN communication, and/or a PLC transceiver (50) for communication using powerline communication, in particular in accordance with ISO 15118-3. Vehicle charging communication device (10). Claim 1 or 2 , wherein the contact interface (20) comprises a pilot contact, CP, in particular a CP pin, and a protective conductor contact, PE, in particular a PE pin, which are used to establish a, preferably analog, communication connection with one of the several transceivers (30, 40 , 50) can be connected. Vehicle charging communication device (10). Claim 3 , wherein the configuration unit (100) for configuring the vehicle charging communication device (10) is designed to select a PLC transceiver (50) of the plurality of transceivers (30, 40, 50) and, preferably for communication using the CCS communication protocol the CP and the PE of the contact interface (20) to be connected in terms of signaling. Vehicle charging communication device (10) according to one of the preceding claims, wherein the contact interface (20) comprises two data transmission contacts (PHY+, PHY-), in particular data transmission pins, which are used to establish a digital communication connection with one of the multiple transceivers (30, 40 , 50) can be connected. Vehicle charging communication device (10). Claim 5 , wherein the configuration unit (100) for configuring the vehicle charging communication device (10) is designed to select a CAN transceiver (40) of the plurality of transceivers (30, 40, 50) and, preferably for communication by means of the CHAdeMO, GB/ T and/or ChaoJi communication protocol to be connected in terms of signals to the data transmission contacts (PHY+, PHY-) of the contact interface (20). Vehicle charging communication device (10). Claim 6 , wherein the configuration unit (100) for configuring the vehicle charging communication device (10) is further designed to additionally connect the selected CAN transceiver (40) to the CP and the PE of the contact interface (20) via signaling technology. Vehicle charging communication device (10) according to one of the Claims 5 until 7 , where the Configuration unit (100) for configuring the vehicle charging communication device (10) is designed to select an Ethernet transceiver (30) or a PLC transceiver (50) from the plurality of transceivers (30, 40, 50) and to the data transmission contacts (PHY+, PHY-) of the contact interface (20) to be connected in terms of signals. Vehicle charging communication device (10) according to one of the preceding claims, wherein the vehicle charging communication device (10) further comprises a switching arrangement (60) which can be switched into one of a plurality of switching configurations by the configuration unit (100), each of the plurality of switching configurations being formed to establish a communication connection between the contact interface (20) and one of the multiple transceivers (30, 40, 50). Vehicle charging communication device (10). Claim 9 , wherein each of the plurality of switching configurations is further configured to have a further communication connection between the contact interface (20) and/or the selected one of the plurality of transceivers (30, 40, 50) with a further interface (90) for monitoring a power supply from the charging station (600 ) to produce the battery system of the motor vehicle (500). Vehicle charging communication device (10). Claim 9 or 10 , wherein the vehicle charging communication device (10) further comprises a circuit board (110) on which the contact interface (20), the plurality of transceivers (30, 40, 50), the configuration unit (100) and the switching arrangement (60) are arranged. Electrically driven motor vehicle (500), in particular commercial vehicle, comprising: a vehicle charging communication device (10) according to any one of the preceding claims; a battery system for electrically driving the motor vehicle (500); a vehicle charging interface (300), which is connected in terms of signals to the contact interface (20) of the vehicle charging communication device (10) and can be connected to a charging station charging interface of a charging station (600) via a charging cable (400); and a vehicle control device (200), which is designed to communicate with a charging station control device of the charging station (600) via a charging communication connection established by means of the vehicle charging communication device (10) and to control an electrical charging process of the battery system. Electrically powered motor vehicle (500). Claim 12 , wherein the vehicle charging interface (300) is a plug coupling, preferably a CCS, CHAdeMO, GB/T or ChaoJi plug coupling. Electrically powered motor vehicle (500). Claim 12 or 13 , wherein contacts (CP, PE, PHY+, PHY-) of the contact interface (20) of the vehicle charging communication device (10), which are connected in terms of signals to one of the several transceivers (30, 40, 50) of the vehicle charging communication device (10), are also contacted for signaling purposes with corresponding contacts of the vehicle charging interface (300). Electrically driven motor vehicle (500) according to one of the Claims 12 until 14 , wherein the configuration unit (100) of the vehicle charging communication device (10) a) is connected exclusively to other components of the vehicle charging communication device (10) in terms of signaling, mechanical and / or electrical, and / or b) exclusively for configuring the vehicle charging communication device ( 10) is trained. Method (1000) for configuring an electrically driven motor vehicle (500), preferably a commercial vehicle, comprising: providing (S1) a vehicle charging communication device (10), preferably a vehicle charging communication device (10) according to one of Claims 1 until 11 ; Providing (S2) a vehicle charging interface (300) which can be connected to a charging station charging interface of a charging station (600) via a charging cable (400); Configuring (S3) the vehicle charging communication device (10) by selecting one of a plurality of transceivers (30, 40, 50) of the vehicle charging communication device (10) and connecting via signaling to a contact interface (20) of the vehicle charging communication device (10); and signaling contact (S4) of the contact interface (20) with the vehicle charging interface (300). Procedure (1000) according to Claim 16 , further comprising: installation of the vehicle charging communication device (10) and the vehicle charging interface (300) in the electrically drivable motor vehicle (500) after configuration (S3) and preferably after signaling contact (S4).

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