WO2022053129A1 - Electrical plug-in connector device, interface device and bus system for a data line connection in or between vehicles - Google Patents

Electrical plug-in connector device, interface device and bus system for a data line connection in or between vehicles Download PDF

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Publication number
WO2022053129A1
WO2022053129A1 PCT/EP2020/075126 EP2020075126W WO2022053129A1 WO 2022053129 A1 WO2022053129 A1 WO 2022053129A1 EP 2020075126 W EP2020075126 W EP 2020075126W WO 2022053129 A1 WO2022053129 A1 WO 2022053129A1
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WO
WIPO (PCT)
Prior art keywords
contact means
contact
connector
electrical
plug
Prior art date
Application number
PCT/EP2020/075126
Other languages
French (fr)
Inventor
Andreas Goers
Jacek HEDLOFF
Original Assignee
Zf Cv Systems Global Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zf Cv Systems Global Gmbh filed Critical Zf Cv Systems Global Gmbh
Priority to PCT/EP2020/075126 priority Critical patent/WO2022053129A1/en
Publication of WO2022053129A1 publication Critical patent/WO2022053129A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6463—Means for preventing cross-talk using twisted pairs of wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/58—Auxiliary devices
    • B60D1/62—Auxiliary devices involving supply lines, electric circuits, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/58—Auxiliary devices
    • B60D1/62—Auxiliary devices involving supply lines, electric circuits, or the like
    • B60D1/64—Couplings or joints therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/86—Parallel contacts arranged about a common axis

Definitions

  • the invention relates to an electrical plug-in connector device, an interface device and a bus system for a data line connection in a vehicle or between vehicles.
  • Data line connections in a vehicle can in general be realised by different electrical cables on basis of several technical standards.
  • CAN Controller Area Network
  • CAN Controller Area Network
  • ADAS advanced driver assistance systems
  • AD automated driving
  • truck and trailer can in particular either be implemented as a power line communication PLC according to SAE J2497 or as a 24V trailer CAN, in particular according to ISO11992. Both solutions are reliable; however they provide a relative low data rate, in particular for real-time sensor data of e.g. cameras, lidar or radar arranged on the two vehicles, i.e. truck and trailer.
  • Electronical units or devices in particular the communication interfaces at the tractor and the trailer comprise electrical plug-in connectors for receiving a mating connector or counter-connector of a data line connection cable.
  • the established standards for plug-in connectors guarantee a high performance, standardization and compatibility or interchangeability, together with a high reliability with respect to mechanical stresses and strains occurring in the automotive area.
  • High bandwidth interfaces apply differential data transmission standards like : Ethernet, Automotive Ethernet and HDBaseT on various speed grades, which in general apply a low voltage, high speed differential signalling interface.
  • Differential data transmission requires two lines per signal, since information is transferred by detecting either a polarity or a magnitude of a voltage difference between the two signal lines.
  • the differential impedance value is an important electrical property in the connectors and the data line.
  • the standard for Automotive Ethernet requires a transmission path to match a differential impedance Zdiff of 100 Q.
  • the impedance shall match Zdiff of 120 Q.
  • truck-trailer data interfaces shall provide mechanical robustness of connectors and harnesses, as applied in trailer CAN (e. g. ISO 11992) links. Moreover, the connection shall be easy to be handled by the users.
  • trailer CAN e. g. ISO 11992
  • US 6514090 B1 discloses an apparatus for enhancing the differential signalling speed performance of a PCI bus, within a data processing system, comprising a differential signal pair connected to a printed circuit board, cable or other transmission; and split pin connectors replacing standard solid connectors pins.
  • DE102018132867A1 shows a plug-in connector apparatus for a vehicle, in particular a tractor vehicle or a vehicle trailer, for transmitting data.
  • the plug-in connector apparatus comprises a first interface for connection to a vehicle and a second interface for connection to a connecting line, wherein the first interface and/or the second interface are/is designed as a connecting element, in particular as a plug or a plug socket, for establishing a connection according to an ISO or SAE standard.
  • the plug-in connector apparatus further comprises a data interface for connection to a data line, wherein the data interface is electrically connected to the first interface for transmitting electrical signals and/or data between the data interface and the second interface.
  • WO 2019/057403 A1 discloses a data system of a towing vehicle and/or trailer vehicle, in particular for commercial vehicles such as a heavy goods vehicle, a heavy goods vehicle trailer, a passenger bus or a passenger bus trailer, comprising a control device, a sensor system for picking up and processing sensor data, and a BUS system for transmitting the sensor data between the control device and the sensor system.
  • An interface of the BUS system transmits the sensor data to an interface of a BUS system of a respective other data system of the towing vehicle and/or trailer vehicle within the framework of a data transmission system, wherein the BUS system has a CAN BUS, an ETHERNET BUS, and an intelligent switch for activating one of these BUS systems.
  • the electrical plug-in connector device comprises at least one electrical contact means, which is an electrical pin, i.e. a male contact means, or an electrical socket, i.e. a female contact means.
  • the at least one electrical contact means comprises at least two contact parts being separated from each other by a resistor and extending in a plug-in direction.
  • the inventive contact means is not a single or single ended metallic part, but split into two separate contact parts.
  • the bandwidth or data transmission rate is enhanced with respect to a contact means comprising only one contact part, e. g. a single-ended electrical pin or single-ended electrical socket.
  • the invention is based on the idea to use electrical plug-in connector devices with pins and sockets to be plugged in mating connectors according to conventional standards, which have approved high reliability.
  • the formfactor and size as well as the electrical properties of the packages of these connectors make them not suitable for high speed, low voltage differential signalling.
  • a high-speed differential signalling is possible with these mechanical connector systems. Splitting a contact means, e.g. a pin or a socket, into two contact parts does not affect the mechanical robustness and reliability of this contact system.
  • a conventional pin and mating socket in particular their metal contacts, are split to provide at least two electrical lines, which then can be used for a differential signal path with differential impedance, to enhance the data transmission or bandwidth.
  • the electrical contact means can receive a mating electrical contact means of another connector, thereby connecting each of the two contact parts of one contact means by a contact part of the other contact means, respectively.
  • the split contact means can be fitted into existing mechanical packages of standard connectors, which comprise single-ended contact means, e. g. single-ended pins and single-ended sockets.
  • single-ended contact means e. g. single-ended pins and single-ended sockets.
  • existing packages and existing devices for manufacturing the connectors can be used.
  • the inventive solution provides a high mechanical robustness, which satisfies existing standards.
  • the plug-in connector device including its mechanical package can be realized as defined in one of the following standards:
  • ABS/EBS e.g ISO 7638-1 .
  • An inventive connector comprising one or more split electrical contact means, i.e. pins or sockets, can be plugged into a conventional connector (counter-connector) comprising a corresponding arrangement of mating single-ended contact means.
  • a conventional connector counter-connector
  • the inventive electrical contact means with its two separate contact parts is contacted with a conventional single-ended contact of the mating contact means, wherein the two contact parts of the split contact means are short-circuited with each other.
  • data line connection is only possible with one data line; however, such a mixing of inventive and conventional connectors is possible without further mechanical amendments.
  • conventional connectors provided in electrical devices of a vehicle can be plugged into an inventive connector of a cable, whose other inventive connector is then plugged into another device of the same vehicle or into a device a trailer vehicle, and vice versa.
  • split contact means and the differential pair cable can also be used with the functionality of a single-ended contact means and cable, if any of the system components - truck or trailer - is single-ended.
  • a further advantage is that the inventive solution offers a scalability of the data line connection or the data link.
  • the bandwidth of the connectors depends on the number of applied contact means, i.e. pins and sockets.
  • a further advantage is the high flexibility, since the concept can be applied in any of the existing connectors, e. g. trailer connectors or pigtail-cables as well as in ECU-connectors.
  • split pins and sockets supports the idea of using conventional single-ended contacts in particular as power supply or low-speed signalling lines.
  • a first inventive electrical plug-in connector device comprising at least one first split contact means, i.e. a split pin
  • a mating second inventive electrical plug-in connector device comprising a mating or corresponding second contact means, i.e. a split socket, for establishing a data line connection via two separate electrical lines.
  • this data line connection via two separate electrical lines is provided for differential signalling.
  • the first electrical plug-in connector device can be provided in a device of a vehicle, and the second electrical plug-in connector device can be provided in a cable to be connected to the device.
  • the first and second electrical plug-in connector devices can constitute a tractor-trailer interface.
  • the two contact parts extend in parallel into the plug-in direction; this enables a symmetric design of the contact parts and large contact areas.
  • the electrical pin is realised by two electrical contact parts which are separated by a resistor with a defined electrical resistance or impedance.
  • This resistor is preferably made of a dielectric material.
  • the resistor defines a specified impedance or resistance according to a relevant standard.
  • the resistor may provide e.g. 100 Q or 120 Q, according to the relevant standard.
  • the pin of the inventive electrical plug-in connector device realises a two-contact connection which ensures a continued line impedance within the connector.
  • Each of the split pins is preferably connected to a two-line cable, in particular twisted pair cable, with an impedance with characteristic value matching one of the pins.
  • the electrical lines from a twisted-pair cable in particular according to one or more of the standards Ethernets, Automotive Ethernet and HDBaseT on various speed grades or other differential transmission technologies ISO 11898-2:2016.
  • the two contact parts are connected to one of the lines of the differential pair cable, respectively.
  • Such a twisted-pair cable comprises a higher robustness and a specific electrical performance, in particular with a specified electrical impedance.
  • a data cable between two plug-in connector devices may comprise single-lines as well as twisted-pair lines.
  • the electrical pin comprises a top face with a tapering, in particular conical or frusto-conical top face.
  • a top face facilitates the plugging of the pin into a mating socket.
  • the two contact parts are realised as contact plates, each of them extending to the tapering surface, thereby securing the electrical contact with the mating socket.
  • the electrical plug-in connector device comprises at least one split contact means as well as at least one single-ended contact means, which only comprises one contact part.
  • different lines and cables e.g. a twisted pair cable and a single-phase cable can be fixed to the electrical plug-in connector device. This supports the compatibility, in particular the backwards compatibility.
  • an interface device comprising an electrical plug-in connector device with at least two contact means, preferably split contact means, a control unit for diagnosis and channel decision, a first and second High-speed data bus device, a CAN bus device, which is in particular an ISO-CAN bus device, and a first and a second switch.
  • the first and second contact means are provided to be connected to a first and second twisted pair cable.
  • Such an interface device can be provided in the tractor vehicle and in the trailer vehicle, and a connecting cable with at least two twisted pair cables is plugged into the electrical plug-in connector devices of the interface devices of the tractor vehicle and the trailer vehicle, respectively.
  • the control unit for diagnosis and channel decision chooses between a first switching position in which the first and second High-speed data bus devices are connected to the split contact means and thus to the twisted pair cables, and a second switching position in which the CAN-L signal of the CAN bus is connected to one twisted pair cable and the CAN-H signal is connected to the other twisted pair cable, thus realizing a CAN data bus between tractor vehicle and trailer vehicle.
  • a data communication system comprising a control unit and a switch for switching either an automotive Ethernet or an ISO-CAN bus onto a twisted pair cable is in general known by DE102017010356A1 , which is herewith incorporated by reference.
  • This system enables a switching between ISO-CAN communication and the high-speed data transmission of an Automotive Ethernet using the available connector pins for ISO CAN communication.
  • the interface device comprises an inventive plug-in connector device with two contact means, which in turn comprise a split pin and/or a split socket, respectively.
  • the inventive interface device combines the inventive plug construction with enhanced data transfer rate due to an enhancement of the contact parts of each contact means, e.g. split pin and socket, with the data transfer improvement of a switching system, and thereby ensures robustness and conformity of all relevant channel parameters, independent of the connector frame geometry, which can be e.g. ISO 7638 I ISO12098).
  • the backwards compatibility is given by switching the communication path accordingly.
  • the inventive interface device provides a synergistic benefit, since a common control unit (CPU) can be provided for two switches and two twisted pair cables, together with a compatibility to conventional plug-in connectors, which comprise two conventional control means like pins or sockets.
  • CPU central processing unit
  • the invention enables a legacy full featured ISO-CAN communication channel as a backup link, since both communication wires can be used for ISO-CAN.
  • the advantageous split of wire cross sections fulfils ISO-CAN requirements and 100BaseT1/1000BaseT1 requirements.
  • the other twisted pair cable is available for a high-speed data transmission channel.
  • only one high-speed data transmission channel e.g. the first high-speed data transmission channel, according to ISO 12098 is provided on the first split contact means, e.g. a split pin, and only an ISO-CAN single wire transmission is given on the other split contact means.
  • the first split contact means e.g. a split pin
  • the interface device comprises an additional ground pin.
  • the switch position of the ISO CAN data transfer e.g. the CAN-L signal is provided in conjunction with an ISO CAN GND Pin, in particular according to ISO 11992-1.
  • Pin 14 or Pin 15 according to ISO12098 can transfer data referring to ISO CAN GND Pin 13.
  • a first switch for the first twisted pair cable and a second switch for the second twisted pair cable is provided.
  • the switches can be switched symmetrically, i.e. in parallel to enable either a parallel High-Speed data transfer via both twisted pair cables or a differential ISO-CAN via both twisted pair cables.
  • the two switches can be switched asymmetrically, i.e. one of them for a High-Speed data transfer and the other one for an ISO-CAN, which in particular can be realized by ISO-CAN relative to an additional ground line.
  • the first symmetric switching position can be chosen as standard mode, since it offers the highest data transfer rate or bandwidth.
  • each of the two channels can be separately switched into ISO-CAN via single wire, thus enabling a parallel ISO-CAN data transfer and High-Speed data transfer, or in the second symmetric switching position a differential ISO-CAN via both twisted pair cables.
  • the shield can be connected to ISO CAN GND,(e.g ISO 12098 Pin13 or ISO 7638 Pin 3 in the plugs-in connector devices. Furthermore, a DC decoupling of shield and ground (GND) on the tractor and the trailer vehicle is possible to prevent GND currents over the shielding.
  • GND shield and ground
  • differential media can be used dependent transceiver technologies e.g. automotive Ethernet (100BaseT1 I 10OOBaseT 1 ) (according IEEE 802.3 bw I bp) or HDBaseT. Also, lower speed grades like 10Base T1 S / 10BaseT 11 (according IEEE 802.3 eg) will be feasible.
  • automotive Ethernet 100BaseT1 I 10OOBaseT 1
  • 10BaseT 11 accordinging IEEE 802.3 eg
  • a further advantage is the possibility to complete switch over to a newer technology like PoDL (according IEEE 802.3 bu), which can be realized independent on each high-speed data transmission channel.
  • the first High-speed data bus device comprises an internal data port for a first internal data bus of the vehicle; accordingly, the second High-speed data bus device comprises an internal data port for a second internal data bus of the vehicle, which second internal data bus may be the same as the first internal data bus.
  • a tractor-trailer combination with a connecting data line between the two vehicles wherein the data line is plugged into the inventive electrical plug-in devices and/or inventive interface devices of the tractor and the trailer.
  • trailers with different connectors or plug systems can be connected to the same truck, which comprises an inventive electrical plug-in connector device.
  • the inventive tractor-trailer combination is based on the flexibility and interchangeability of conventional and inventive electrical plug-in connector devices.
  • Fig. 1 is a) a top view and b) a side view or cross-sectional view of a split pin
  • Fig. 2 is a top view and cross sectional of a split socket
  • Fig. 3 is a schematic diagram of the pin of fig. 1 and its electric properties
  • Fig. 4, 5 and 6 are sectional views of connections between different kinds of pins and sockets:
  • Fig. 4 a connection of a split pin in a split socket
  • Fig. 5 a connection of a split pin in a single-ended socket
  • Fig. 6 the connection of a single-ended pin in a single ended socket
  • Fig. 7 is a schematic view of a plug-in connector device with split pins and single-ended pins
  • Fig. 8 is a) a top view (or horizontal sectional view) and b) a vertical sectional view of a seven pin plug-in connector device according to an embodiment of the invention, with two split pins and five conventional (single ended) pins;
  • Fig. 9 is a sectional view of a connection of a first, male plug-in connector device and a second, female plug-in connector device;
  • Fig. 10 is a schematic view of a tractor-trailer combination with a tractor -trailer data connection
  • Fig. 11 is a schematic view of an interface device according to an embodiment of the invention, comprising a plug-in connector device and a switch system, with a detail magnification of relevant parts in Fig. 11a;
  • Fig. 12 is a schematic view of a truck-trailer data connection according to an embodiment of the invention, comprising two interface devices of figure 11 ;
  • Fig. 13 is a schematic view of a truck-trailer data connection according to a further embodiment of the invention,
  • Fig. 14 is a schematic view of an interface device according to a further embodiment of the invention, for realization on a printed circuit board.
  • Fig. 1 shows an electric pin 1 to be used in a connector device (electrical plug-in connector device) 2.
  • the pin 1 is elongated and extends from its bottom 1 a, at which it is electrically connected, to its top 1 b, which is preferably conical or tapering for better mechanical performances.
  • the pin 1 is split along its symmetry axis A and comprises two electrically conductive, metallic contact parts 10 and 11 .
  • the first contact part 10 and the second contact part 11 each extend from the bottom 1 a to the top 1 b of the pin 1 , respectively.
  • the contact parts 10 and 11 are separated in transversal direction B with insulation material 12, which preferably is made of a dielectric material.
  • the insulation 12 extends from the bottom 1 a to the top 1 b in order to separate the contact parts 10 and 11 .
  • the first and second contact part 10, 11 are provided on opposing sides of the pin 1 , with respect of a lateral direction B.
  • the pin 1 comprises a tapering top end 1 b with a tapering top face area 30, as is depicted in Fig. 1 ; the tapering top face area 30 can be of conical or frustro-conical form.
  • Each of the two contact parts 10, 11 form a top face area part 30-10 and 30-11 of the top face area 30.
  • the two top face area parts 30-10 and 30-11 are inclined and/or tapering to the top end 1 b. This configuration improves the contacting performance and plug-in performance of the pin 1 .
  • Each contact part 10 and 11 is contacted by an electrical line 20 and 21 , respectively.
  • the electrical lines 20 and 21 are twisted and thereby define a twisted pair cable 15 extending from the bottom 1 a of the pin 1 , which twisted pair cable 15 defines a differential line according to a differential transmission standard like Ethernet, Automotive Ethernet and HDBaseT on various speed grades or ISO 11898-2:2016.
  • Fig. 8 depicts a connector device 2 realized as 7-pin trailer connector device for ABS/EBS according to ISO 7638-1 , thus comprising seven pins 1 ,101 positioned in an standard arrangement.
  • the connector device 2 comprises a package 16 made of plastic material, which package 16 is in particular cup-shaped defining an interior space 17, in which the pins 1 , 101 are provided.
  • the connector device 2 comprises two split pins 1 according to fig. 1 and five single-ended pins 101.
  • the split pins 1 and the single-ended pins 101 comprise the same length L1 and diameter D1 .
  • the connector device 2 can comprise only split pins 1 without conventional pins 101 .
  • a standard ISO7638 connector equipped with two differential links is able to transmit 2x1 OOMb/s or higher speed grades over a standard form factor connector.
  • the solution provides mechanical robustness of an ISO7638 connector, wherein a scalability of the datalink is provided.
  • the bandwidth of the connector device 2 depends on the number of applied split pins 1 I split sockets 8 with differential pair cables 15
  • Fig. 2 discloses a differential socket 8 (split socket 8) comprising second contact parts 210, 211 and an isolating socket casing 213 carrying the contact parts 210, 211.
  • the second contact parts 210, 211 each comprise an inclined, top face 210a, 211 a, respectively, for receiving the first contact parts 10, 11 of the pin 1 as depicted in fig. 1 .
  • the contact parts 210, 211 are connected to the electric lines 20, 21 , which are twisted as a twisted pair cable 15.
  • the second contact parts 210, 211 of the socket 8 can comprise a bow-shaped form, as is e.g. visible in the top view of Fig.2.
  • the socket casing 213 is preferably the same as a socket package of a common, conventional single-ended socket 108.
  • Fig. 4 to 6 prove that the inventive split pin 1 and the inventive split socket 8 can be combined with conventional single-ended pins 101 and single-ended sockets 108:
  • the two-line pin-socket-assembly 40 of fig. 4 depicts a two-line-connection, in particular a differential electrical connection of a differential split pin 1 in a differential split socket 8;
  • the split pin 1 is plugged into a conventional single-ended socket 108.
  • a one-line connection is possible, wherein the two contact parts 10, 11 of the split pin 1 are short-circuited by the single-ended socket 108.
  • Fig. 9 discloses a second connector device 202, which is a female connector device and comprises a second package 216 and differential (split) sockets 8 and single-ended sockets 108.
  • the second connector device 202 is provided for receiving the first connector device 2, as is indicated in Fig. 9.
  • the first package 16 of the first connector device 2 and the second package 216 of the second connector device 202 comprise mating forms and profilings, and mating pin-socket arrangements 40, 41 , 42 according to Fig. 4, 5, 6, for plugging the first connector device 2 into the second connector device 202.
  • the electric cables extending from the first connector device 2 and second connector devices 202 can be realised as twisted pair lines 15 extending from the split pins 1 and split sockets 8, and single lines 115 extending from conventional contact means 101 , 108, i.e. single-ended pins 101 or single-ended sockets 108.
  • the first connector device 2 and the second connector device 202 can be used in conventional, common standards like CAN, CAN FD, as described in the standard specification ISO 11898-2:2016, or AS CAN, further the standard ethernet AMT can be used. Furthermore, future standards with higher data transmission and/or higher bandwidth can be used.
  • the packages 16, 216 can be manufactured e.g. by injection molding or die casting.
  • plastic packages of conventional connectors 102 can be used, in which a split pin 1 is introduced instead of a single-ended pin 101 , or a split socket 8 is introduced instead of a conventional single-ended socket 108.
  • a truck bus system 60 which comprises an ECU 300 and one or more electronical devices like sensors 310 and/or control units like a control unit of an ECAS (electronically controlled air supply) ; further, the bus system preferably comprises an interface device 500 for a connection to a trailer 1400.
  • ECAS electrostatic controlled air supply
  • a trailer bus system 60 which comprises an ECU 1300, one or more sensors 1310, and preferably an interface device 1500 for a connection to the truck 400.
  • the respective ECU 300, 1300 comprises a first connector device 2, which is plugged into a second connector device 202 of a bus cable 1015 comprising at least one twisted pair cable 15.
  • the truck bus systems 60 can comprise an interface device 500 provided in the truck 400, and the trailer bus systems 1060 can comprise an interface device 1500 provided in the trailerl 400, wherein the interface devices 500, 1500 realize a truck-trailer data connection 320.
  • a truck-trailer combination 420 is realized, with a truck-trailer data connection (trailer coupling) 320 between the truck 400 and the trailer 1400, said truck-trailer data connection 320 is plugged into the interface devices 500, 1500.
  • the truck 400 can be coupled to several, different trailers, thus enabling different truck-trailer combinations 420.
  • the trailer 400 can comprise an inventive trailer coupling connector 2, 202 and the trailer 1400 can comprise a conventional trailer coupling connector 102, or vice versa.
  • Fig. 11 discloses a preferred embodiment of an interface device 500 comprising: a first High-speed data bus device 501 , a second High-speed data bus device 502, an ISO-CAN bus device 504, a truck control unit 506 for diagnosis and channel decision, a first switch 508, and a second switch 510.
  • the first High-speed data bus device 501 comprises an internal data port 501 a for a first internal data bus 520 of the vehicle 400; accordingly, the second High-speed data bus device 502 comprises an internal data port 502a for a second internal data bus 522 of the vehicle 400, which second internal data bus 522 may be the same as the first internal data bus 520.
  • the first switch 508 is connected via a first twisted pair cable 15a to a first contact means 551 , which in this embodiments is a pin 1 .
  • the second twisted pair cable 15b is connected via a second twisted pair cable 15a to a second contact means 552, which - in this embodiment - is a pin 1 , too; however, the contact means 551 , 552 connected to the twisted pair cables 15a, 15b may be sockets 8 or mixed, i.e. a pin 1 and a socket 8.
  • the truck interface device 500 comprises two contact means 551 , 552 for external plugging.
  • the ISO-CAN bus device 504 comprises an internal bus port 504a and an external bus port 504b, which in turn is composed of a CAN-H port 504b-H (CAN High) and a CAN-L port 504b-L (CAN Low).
  • a first input realized by external ports 501 b1 and 501 b2 of the first High-speed data bus device 501 and a second input realized by the CAN-H port 504b-H are connected to the first switch 508, which switches one of these two inputs onto a first twisted pair cable 15a according to a given standard e.g. 100BaseT1 or 1000BaseT1 .
  • the external ports 501 b1 and 501 b2 of the first High-speed data bus device 501 are connected to the two lines of the first twisted pair cable 15a enabling a differential data transmission via the first twisted pair cable 15a.
  • a first input realized by external ports 502b1 and 502b2 of the second High-speed data bus device 502 and a second input realized by the CAN-L port 504b-L are input into the second switch 510, which switches one of these two inputs onto a second twisted pair cable 15b according to the a given standard e.g. 100BaseT1 or 1000BaseT1 .
  • the external ports 502b1 and 502b2 of the second High-speed data bus device 502 are connected to the two lines of the second twisted pair cable 15b enabling a differential data transmission via the second twisted pair cable 15b.
  • the CAN-L port 504b-L is connected to both lines of the second twisted pair cable 15b.
  • the truck control unit 506 controls the switches 508 and 510 by switching signals S1 and S2, which switch the switches 508 and 510 separately.
  • first High-speed data bus device 501 is connected to the two lines of the first twisted pair cable 15a
  • second High-speed data bus device 502 is connected to the two lines of the second twisted pair cable 15b.
  • This switching position or switching position combination enables an independent parallel High-speed data transfer via the two twisted pair cables 15a, 15b
  • the CAN-L port 504b-L is connected to the first twisted pair cable 15a and the CAN-H port 504b-H is connected to the second twisted pair cable 15b; this enables a differential ISO-CAN data transfer according to an ISO-CAN standard via the two twisted pair cables 15a, 15b.
  • the further two switching positions are asymmetrical with respect to the switches 508 and 510.
  • these asymmetrical combinations can use one channel (cable 15a or 15b) for High-speed data transfer and the other one for ISO-CAN relative to GND.
  • the truck control unit 506 chooses between the switching positions on basis of a diagnosis. This diagnosis can e.g. be made by detecting the data transfer output by the CAN device 504 and the High-speed data devices 501 , 502.
  • a diagnosis can e.g. be made by detecting the data transfer output by the CAN device 504 and the High-speed data devices 501 , 502.
  • the CAN-H port 504b-H (CAN High) and a CAN-L port 504b-L (CAN Low) can be separated from the first and second switch 508, 510 by potential isolation switches 512, 513, which are depicted in dotted lines.
  • These potential isolation switches 512, 513 are controlled by the control unit 506, preferably by switching with the signal S1 or in conformity with the signal S1 , so that they are open in the second switching position of the High-speed data transfer, in which not input from the ISO-CAN device 504 is transferred.
  • Fig. 12 discloses a first embodiment of a data communication between the truck 400 and the trailer 1400 via a truck-trailer data connection 320 with two external twisted pair cables 320-15.
  • the first external twisted pair cable 320-15 comprises a socket 8, which is plugged into the first contact means 551 of the truck 400 and the other end of the twisted pair cable is plugged into the first contact means 551 of the trailer 1400
  • a second external twisted pair cable 320-15 comprising a socket 8, which is plugged into the second contact means 552 of the truck 400 and the other end of the external twisted pair cable 320-15 is plugged into the second contact means 552 of the trailed 400.
  • Fig. 13 discloses a further embodiment, in which the interface devices 500 and 1500 each comprise an additional ground contact 553, in particular ground pin 553, and the truck-trailer data connection 320 comprises an additional ground line 320-18.
  • the CAN-L signal is provided in conjunction with an ISO CAN GND Pin, in particular according to ISO12098 and ISO 7638.
  • the embodiment enables shielded twisted pair cables 320-15 to enhance the transmission channel quality.
  • a data link 320 with shielded twisted pair cables 320-15 in particular a shielding 320-55 for both twisted pair cables 320-15, increases EMC immunity, reduced EMC radiation and will also reduce the cross talk to other cables.
  • the cable shieldings 320-55 of the twisted pair cables 320-15 are connected to the GND Pin 553, preferable to the GND Pin reserved for ISO CAN (e.g. ISO 7638 Pin3 and ISO12098 Pin13). With this embodiment the connectors 551 / 552 do not need a 360° shielding of the data transmission pin.
  • the internal twisted pair cables 15a, 15b are shielded by a shielding 555, 556, respectively.
  • the shielding 555 is capacitively connected via capacitive couplings (capacitors) 560 to GND so that DC current on the shielding is not possible.
  • the shieldings 1555 and 1556 are also capacitively connected via capacitive couplings 560 to GND.
  • each ISO-CAN can be used relative to GND.
  • Fig. 14 is a schematic view of an interface device according to a further embodiment of the invention, for realization on a printed circuit board (PCB) 480.
  • the switches 508, 510 are directly connected to the contact means 551 ,
  • the switch circuitry 480 of device 500 can be integrated in the Truck ECU 300, and/or the switch circuitry 480 of device 1500 can be integrated in the Trailer ECU
  • 15 twisted pair cable (differential pair cable), comprising electrical lines 15a, 15b twisted pair cables

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Abstract

The invention relates to an electrical plug-in connector device, an interface device and a bus system for a data line connection in or between vehicles. The electrical plug-in connector device comprises: a package made of insulating material, at least one contact means (8) being provided for a plug-in connection into a mating contact means of a mating electrical plug-in connector device in a plug-in direction (P), wherein said contact means (8) is a pin (1) or a socket for receiving a pin (1), and said contact means (8) comprises two separate electrical contact parts (10, 11) extending in said plug-in direction (P), wherein two electrical lines (20, 21) are connected to said two contact parts (10, 11) and provided for a differential data transmission. Further an interface device with such an electrical plug-in connector device is provided.

Description

ELECTRICAL PLUG-IN CONNECTOR DEVICE, INTERFACE DEVICE AND BUS SYSTEM FOR A DATA LINE CONNECTION IN OR BETWEEN VEHICLES
Background of the invention
The invention relates to an electrical plug-in connector device, an interface device and a bus system for a data line connection in a vehicle or between vehicles.
Data line connections in a vehicle can in general be realised by different electrical cables on basis of several technical standards.
In particular CAN (Controller Area Network) bus systems are common, which define an asynchronous serial bus system and provide a platform for messages between electronical devices.
In the context of advanced driver assistance systems (ADAS) and automated driving (AD) of commercial vehicles the sensor data exchange between truck and trailers is a current bottleneck. Especially applications that involve assisted lane change and/or driving backwards can hardly be implemented with sensors only equipped on the truck. Data exchange between truck and trailer can in particular either be implemented as a power line communication PLC according to SAE J2497 or as a 24V trailer CAN, in particular according to ISO11992. Both solutions are reliable; however they provide a relative low data rate, in particular for real-time sensor data of e.g. cameras, lidar or radar arranged on the two vehicles, i.e. truck and trailer.
Thus there is an emerging need for exchanging high amounts of data inside the vehicle or externally, e. g. between a truck and a trailer. In particular new systems like autonomous driving systems require additional transmission of data between several units, e. g. sensors like cameras, radars or lidars, located in e. g. a commercial vehicle and I or a trailer connected to the commercial vehicle. Furthermore, application of new technologies in vehicles requires high bandwidth interfaces.
Additional data transfer, in particular images of rear-view cameras from the trailer to the truck can be transmitted via extra cables and plugs. However those solutions require an enormous extra effort for coupling. An alternative are broadcasting or radio solutions using wireless data transfer; however they are suffering from a limited radio bandwidth that needs to be shared with other vehicles and services. Further the so-called “pairing” between truck and trailer is problematic with respect to radio disturbances and the vulnerability to cybersecurity.
Electronical units or devices, in particular the communication interfaces at the tractor and the trailer comprise electrical plug-in connectors for receiving a mating connector or counter-connector of a data line connection cable.
The established standards for plug-in connectors guarantee a high performance, standardization and compatibility or interchangeability, together with a high reliability with respect to mechanical stresses and strains occurring in the automotive area.
High bandwidth interfaces apply differential data transmission standards like : Ethernet, Automotive Ethernet and HDBaseT on various speed grades, which in general apply a low voltage, high speed differential signalling interface. Differential data transmission (differential signalling) requires two lines per signal, since information is transferred by detecting either a polarity or a magnitude of a voltage difference between the two signal lines. Thus the differential impedance value is an important electrical property in the connectors and the data line. For example, the standard for Automotive Ethernet requires a transmission path to match a differential impedance Zdiff of 100 Q. For CAN FD the impedance shall match Zdiff of 120 Q. These differential impedances are in general only ensured by special electrical designs of the pins and sockets of mating electrical plug-in connectors.
Apart from the ability to provide a high speed data link, truck-trailer data interfaces shall provide mechanical robustness of connectors and harnesses, as applied in trailer CAN (e. g. ISO 11992) links. Moreover, the connection shall be easy to be handled by the users.
US 6514090 B1 discloses an apparatus for enhancing the differential signalling speed performance of a PCI bus, within a data processing system, comprising a differential signal pair connected to a printed circuit board, cable or other transmission; and split pin connectors replacing standard solid connectors pins.
DE102018132867A1 shows a plug-in connector apparatus for a vehicle, in particular a tractor vehicle or a vehicle trailer, for transmitting data. The plug-in connector apparatus comprises a first interface for connection to a vehicle and a second interface for connection to a connecting line, wherein the first interface and/or the second interface are/is designed as a connecting element, in particular as a plug or a plug socket, for establishing a connection according to an ISO or SAE standard. The plug-in connector apparatus further comprises a data interface for connection to a data line, wherein the data interface is electrically connected to the first interface for transmitting electrical signals and/or data between the data interface and the second interface.
WO 2019/057403 A1 discloses a data system of a towing vehicle and/or trailer vehicle, in particular for commercial vehicles such as a heavy goods vehicle, a heavy goods vehicle trailer, a passenger bus or a passenger bus trailer, comprising a control device, a sensor system for picking up and processing sensor data, and a BUS system for transmitting the sensor data between the control device and the sensor system. An interface of the BUS system transmits the sensor data to an interface of a BUS system of a respective other data system of the towing vehicle and/or trailer vehicle within the framework of a data transmission system, wherein the BUS system has a CAN BUS, an ETHERNET BUS, and an intelligent switch for activating one of these BUS systems.
It is therefore an object of the invention to provide an electrical plug-in connector device, an interface device and a bus system for a data line connection in or between vehicles, which offer a high reliability at low costs.
Summary of the invention
This object is realised by an electrical plug-in connector device, an interface device and a bus system according to the independent claims. Further a tractor-trailer-combination comprising such an electrical plug-in connector device and/or an interface device and/or a bus system is provided.
Thus the electrical plug-in connector device comprises at least one electrical contact means, which is an electrical pin, i.e. a male contact means, or an electrical socket, i.e. a female contact means. The at least one electrical contact means comprises at least two contact parts being separated from each other by a resistor and extending in a plug-in direction.
Thus, the inventive contact means is not a single or single ended metallic part, but split into two separate contact parts. Thus, the bandwidth or data transmission rate is enhanced with respect to a contact means comprising only one contact part, e. g. a single-ended electrical pin or single-ended electrical socket.
The invention is based on the idea to use electrical plug-in connector devices with pins and sockets to be plugged in mating connectors according to conventional standards, which have approved high reliability. In general, the formfactor and size as well as the electrical properties of the packages of these connectors make them not suitable for high speed, low voltage differential signalling. However, on basis of the inventive features a high-speed differential signalling is possible with these mechanical connector systems. Splitting a contact means, e.g. a pin or a socket, into two contact parts does not affect the mechanical robustness and reliability of this contact system.
Thus, a conventional pin and mating socket, in particular their metal contacts, are split to provide at least two electrical lines, which then can be used for a differential signal path with differential impedance, to enhance the data transmission or bandwidth.
By splitting the contact means into a first contact part and a second contact part the data connection to a mating split contact means is safe and cannot be mixed or short-circuited. Therefore, the electrical contact means can receive a mating electrical contact means of another connector, thereby connecting each of the two contact parts of one contact means by a contact part of the other contact means, respectively.
An important advantage of the inventive solution is that the split contact means can be fitted into existing mechanical packages of standard connectors, which comprise single-ended contact means, e. g. single-ended pins and single-ended sockets. Thus, existing packages and existing devices for manufacturing the connectors can be used. Thus, the inventive solution provides a high mechanical robustness, which satisfies existing standards. The plug-in connector device including its mechanical package can be realized as defined in one of the following standards:
ISO 7638, in particular
- 7-pin trailer connector for ABS/EBS , e.g ISO 7638-2
- 7-pin trailer connector for ABS/EBS , e.g ISO 7638-1 .
- 13-pin trailer connector, e.g. ISO 11446
- 7-pin trailer connector Type 12N, e.g. ISO 1724
- 7-pin trailer connector Type 12S, e.g. ISO 3732.
- 5-pin connector, e.g ISO 1724.
- 15-pin trailer connector, e.g ISO 12098.
- 7-pin trailer connector 24N, e.g. ISO 1185
- 7-pin trailer connector 24S, e.g. ISO 3731
All of these standards are suitable for reliable low speed data transmission according to ISO11992. However, according to the invention at least two lines for differential data transmission are connected, in particular according to the standard 100 Base-T 1 .
A very important advantage of the inventive solution is the backwards compatibility: An inventive connector comprising one or more split electrical contact means, i.e. pins or sockets, can be plugged into a conventional connector (counter-connector) comprising a corresponding arrangement of mating single-ended contact means. In such a mixed connector combination of a conventional and an inventive electrical plug-in connector device the inventive electrical contact means with its two separate contact parts is contacted with a conventional single-ended contact of the mating contact means, wherein the two contact parts of the split contact means are short-circuited with each other. Thus, data line connection is only possible with one data line; however, such a mixing of inventive and conventional connectors is possible without further mechanical amendments. For example, conventional connectors provided in electrical devices of a vehicle can be plugged into an inventive connector of a cable, whose other inventive connector is then plugged into another device of the same vehicle or into a device a trailer vehicle, and vice versa.
Thus, the split contact means and the differential pair cable can also be used with the functionality of a single-ended contact means and cable, if any of the system components - truck or trailer - is single-ended.
A further advantage is that the inventive solution offers a scalability of the data line connection or the data link. The bandwidth of the connectors depends on the number of applied contact means, i.e. pins and sockets.
A further advantage is the high flexibility, since the concept can be applied in any of the existing connectors, e. g. trailer connectors or pigtail-cables as well as in ECU-connectors.
Further, the concept of split pins and sockets supports the idea of using conventional single-ended contacts in particular as power supply or low-speed signalling lines.
Thus a first inventive electrical plug-in connector device comprising at least one first split contact means, i.e. a split pin, can receive a mating second inventive electrical plug-in connector device comprising a mating or corresponding second contact means, i.e. a split socket, for establishing a data line connection via two separate electrical lines. In particular this data line connection via two separate electrical lines is provided for differential signalling. The first electrical plug-in connector device can be provided in a device of a vehicle, and the second electrical plug-in connector device can be provided in a cable to be connected to the device. In particular, the first and second electrical plug-in connector devices can constitute a tractor-trailer interface.
In particular the two contact parts extend in parallel into the plug-in direction; this enables a symmetric design of the contact parts and large contact areas.
According to a preferred embodiment, the electrical pin is realised by two electrical contact parts which are separated by a resistor with a defined electrical resistance or impedance. This resistor is preferably made of a dielectric material. According to a preferred embodiment, the resistor defines a specified impedance or resistance according to a relevant standard. Thus, the resistor may provide e.g. 100 Q or 120 Q, according to the relevant standard. In such an embodiment, the pin of the inventive electrical plug-in connector device realises a two-contact connection which ensures a continued line impedance within the connector.
This enables the advantage of an impedance match. Each of the split pins is preferably connected to a two-line cable, in particular twisted pair cable, with an impedance with characteristic value matching one of the pins.
According to a preferred embodiment, the electrical lines from a twisted-pair cable, in particular according to one or more of the standards Ethernets, Automotive Ethernet and HDBaseT on various speed grades or other differential transmission technologies ISO 11898-2:2016. Thus, the two contact parts are connected to one of the lines of the differential pair cable, respectively. Such a twisted-pair cable comprises a higher robustness and a specific electrical performance, in particular with a specified electrical impedance. Thus, a data cable between two plug-in connector devices may comprise single-lines as well as twisted-pair lines.
According to a preferred embodiment, the electrical pin comprises a top face with a tapering, in particular conical or frusto-conical top face. Such a top face facilitates the plugging of the pin into a mating socket. In such an arrangement the two contact parts are realised as contact plates, each of them extending to the tapering surface, thereby securing the electrical contact with the mating socket.
According to an embodiment of the invention the electrical plug-in connector device comprises at least one split contact means as well as at least one single-ended contact means, which only comprises one contact part. Thus, different lines and cables, e.g. a twisted pair cable and a single-phase cable can be fixed to the electrical plug-in connector device. This supports the compatibility, in particular the backwards compatibility.
According to a further aspect of the invention an interface device is provided comprising an electrical plug-in connector device with at least two contact means, preferably split contact means, a control unit for diagnosis and channel decision, a first and second High-speed data bus device, a CAN bus device, which is in particular an ISO-CAN bus device, and a first and a second switch. The first and second contact means are provided to be connected to a first and second twisted pair cable.
Such an interface device can be provided in the tractor vehicle and in the trailer vehicle, and a connecting cable with at least two twisted pair cables is plugged into the electrical plug-in connector devices of the interface devices of the tractor vehicle and the trailer vehicle, respectively.
The control unit for diagnosis and channel decision chooses between a first switching position in which the first and second High-speed data bus devices are connected to the split contact means and thus to the twisted pair cables, and a second switching position in which the CAN-L signal of the CAN bus is connected to one twisted pair cable and the CAN-H signal is connected to the other twisted pair cable, thus realizing a CAN data bus between tractor vehicle and trailer vehicle.
A data communication system comprising a control unit and a switch for switching either an automotive Ethernet or an ISO-CAN bus onto a twisted pair cable is in general known by DE102017010356A1 , which is herewith incorporated by reference. This system enables a switching between ISO-CAN communication and the high-speed data transmission of an Automotive Ethernet using the available connector pins for ISO CAN communication.
However, according to the invention two such switches are provided, and one twisted pair cable is provided for each of the CAN-L and CAN-H signal, respectively. Further, the interface device comprises an inventive plug-in connector device with two contact means, which in turn comprise a split pin and/or a split socket, respectively. .
Thus the inventive interface device combines the inventive plug construction with enhanced data transfer rate due to an enhancement of the contact parts of each contact means, e.g. split pin and socket, with the data transfer improvement of a switching system, and thereby ensures robustness and conformity of all relevant channel parameters, independent of the connector frame geometry, which can be e.g. ISO 7638 I ISO12098). On the other hand, the backwards compatibility is given by switching the communication path accordingly.
Further advantages are the capability for two high-speed data channels and the single-wire capability of ISO-CAN. According to a preferred embodiment a one channel high-speed data and in parallel, ISO CAN communication is possible
Thus, the inventive interface device provides a synergistic benefit, since a common control unit (CPU) can be provided for two switches and two twisted pair cables, together with a compatibility to conventional plug-in connectors, which comprise two conventional control means like pins or sockets.
Further a transmission of the CAN-L as well as the CAN-H via two separate twisted pair cables results in a very reliable transmission system.
Further, the invention enables a legacy full featured ISO-CAN communication channel as a backup link, since both communication wires can be used for ISO-CAN.
The advantageous split of wire cross sections fulfils ISO-CAN requirements and 100BaseT1/1000BaseT1 requirements.
In case of single wire failure, the other twisted pair cable is available for a high-speed data transmission channel.
According to an embodiment only one high-speed data transmission channel, e.g. the first high-speed data transmission channel, according to ISO 12098 is provided on the first split contact means, e.g. a split pin, and only an ISO-CAN single wire transmission is given on the other split contact means.
Further according to a preferred embodiment, the interface device comprises an additional ground pin. Thus, in the switch position of the ISO CAN data transfer e.g. the CAN-L signal is provided in conjunction with an ISO CAN GND Pin, in particular according to ISO 11992-1. In this content Pin 14 or Pin 15 according to ISO12098 can transfer data referring to ISO CAN GND Pin 13.
Further it is possible to switch over a single ISO CAN line to high-speed data transmission channel on an ISO 7638 connector type.
Alternatively, it is possible to switch over the single ISO CAN Line to high-speed data transmission channel on an SAE J2691 connector type.
According to an advantageous embodiment a first switch for the first twisted pair cable and a second switch for the second twisted pair cable is provided. The switches can be switched symmetrically, i.e. in parallel to enable either a parallel High-Speed data transfer via both twisted pair cables or a differential ISO-CAN via both twisted pair cables.
Furthermore, according to a preferred embodiment the two switches can be switched asymmetrically, i.e. one of them for a High-Speed data transfer and the other one for an ISO-CAN, which in particular can be realized by ISO-CAN relative to an additional ground line.
This availability of a parallel CAN data transfer, a parallel High-Speed data transfer as well as combined parallel CAN and High-Speed is an important benefit of the invention. In particular, the first symmetric switching position can be chosen as standard mode, since it offers the highest data transfer rate or bandwidth. In case of a failure or damage each of the two channels can be separately switched into ISO-CAN via single wire, thus enabling a parallel ISO-CAN data transfer and High-Speed data transfer, or in the second symmetric switching position a differential ISO-CAN via both twisted pair cables.
Further a shielding on a separate pin to enable 1000BaseT1 Type B channel capabilities is possible. The shield can be connected to ISO CAN GND,(e.g ISO 12098 Pin13 or ISO 7638 Pin 3 in the plugs-in connector devices. Furthermore, a DC decoupling of shield and ground (GND) on the tractor and the trailer vehicle is possible to prevent GND currents over the shielding.
Furthermore, it is possible to provide ISO-CAN multiplexing on ISO 12098 as well as on ISO 7638 connectors.
According to a further embodiment different differential media can be used dependent transceiver technologies e.g. automotive Ethernet (100BaseT1 I 10OOBaseT 1 ) (according IEEE 802.3 bw I bp) or HDBaseT. Also, lower speed grades like 10Base T1 S / 10BaseT 11 (according IEEE 802.3 eg) will be feasible.
A further advantage is the possibility to complete switch over to a newer technology like PoDL (according IEEE 802.3 bu), which can be realized independent on each high-speed data transmission channel.
Preferably, the first High-speed data bus device comprises an internal data port for a first internal data bus of the vehicle; accordingly, the second High-speed data bus device comprises an internal data port for a second internal data bus of the vehicle, which second internal data bus may be the same as the first internal data bus.
According to a further aspect of the invention, a tractor-trailer combination with a connecting data line between the two vehicles is provided, wherein the data line is plugged into the inventive electrical plug-in devices and/or inventive interface devices of the tractor and the trailer. Thus, trailers with different connectors or plug systems can be connected to the same truck, which comprises an inventive electrical plug-in connector device. The inventive tractor-trailer combination is based on the flexibility and interchangeability of conventional and inventive electrical plug-in connector devices. Brief description of the drawings and preferred embodiments
Fig. 1 is a) a top view and b) a side view or cross-sectional view of a split pin; Fig. 2 is a top view and cross sectional of a split socket;
Fig. 3 is a schematic diagram of the pin of fig. 1 and its electric properties;
Fig. 4, 5 and 6 are sectional views of connections between different kinds of pins and sockets:
Fig. 4 a connection of a split pin in a split socket;
Fig. 5 a connection of a split pin in a single-ended socket;
Fig. 6 the connection of a single-ended pin in a single ended socket;
Fig. 7 is a schematic view of a plug-in connector device with split pins and single-ended pins;
Fig. 8 is a) a top view (or horizontal sectional view) and b) a vertical sectional view of a seven pin plug-in connector device according to an embodiment of the invention, with two split pins and five conventional (single ended) pins; Fig. 9 is a sectional view of a connection of a first, male plug-in connector device and a second, female plug-in connector device;
Fig. 10 is a schematic view of a tractor-trailer combination with a tractor -trailer data connection;
Fig. 11 is a schematic view of an interface device according to an embodiment of the invention, comprising a plug-in connector device and a switch system, with a detail magnification of relevant parts in Fig. 11a;
Fig. 12 is a schematic view of a truck-trailer data connection according to an embodiment of the invention, comprising two interface devices of figure 11 ; Fig. 13 is a schematic view of a truck-trailer data connection according to a further embodiment of the invention,
Fig. 14 is a schematic view of an interface device according to a further embodiment of the invention, for realization on a printed circuit board.
Fig. 1 shows an electric pin 1 to be used in a connector device (electrical plug-in connector device) 2. The pin 1 is elongated and extends from its bottom 1 a, at which it is electrically connected, to its top 1 b, which is preferably conical or tapering for better mechanical performances. The pin 1 is split along its symmetry axis A and comprises two electrically conductive, metallic contact parts 10 and 11 . The first contact part 10 and the second contact part 11 each extend from the bottom 1 a to the top 1 b of the pin 1 , respectively. The contact parts 10 and 11 are separated in transversal direction B with insulation material 12, which preferably is made of a dielectric material. Thus also the insulation 12 extends from the bottom 1 a to the top 1 b in order to separate the contact parts 10 and 11 . As is indicated in Fig. 3, the contact parts 10 and 11 are only connected via the insulation material 12, which has a defined electrical impedance R of e.g. R = 100 Q or R= 120 Q.
The first and second contact part 10, 11 are provided on opposing sides of the pin 1 , with respect of a lateral direction B. The pin 1 comprises a tapering top end 1 b with a tapering top face area 30, as is depicted in Fig. 1 ; the tapering top face area 30 can be of conical or frustro-conical form. Each of the two contact parts 10, 11 form a top face area part 30-10 and 30-11 of the top face area 30. Thus the two top face area parts 30-10 and 30-11 are inclined and/or tapering to the top end 1 b. This configuration improves the contacting performance and plug-in performance of the pin 1 .
Each contact part 10 and 11 is contacted by an electrical line 20 and 21 , respectively. The electrical lines 20 and 21 are twisted and thereby define a twisted pair cable 15 extending from the bottom 1 a of the pin 1 , which twisted pair cable 15 defines a differential line according to a differential transmission standard like Ethernet, Automotive Ethernet and HDBaseT on various speed grades or ISO 11898-2:2016.
Fig. 8 depicts a connector device 2 realized as 7-pin trailer connector device for ABS/EBS according to ISO 7638-1 , thus comprising seven pins 1 ,101 positioned in an standard arrangement. The connector device 2 comprises a package 16 made of plastic material, which package 16 is in particular cup-shaped defining an interior space 17, in which the pins 1 , 101 are provided. According to this embodiment the connector device 2 comprises two split pins 1 according to fig. 1 and five single-ended pins 101. The split pins 1 and the single-ended pins 101 comprise the same length L1 and diameter D1 . However, the connector device 2 can comprise only split pins 1 without conventional pins 101 .
Thus, a standard ISO7638 connector, equipped with two differential links is able to transmit 2x1 OOMb/s or higher speed grades over a standard form factor connector.
The solution provides mechanical robustness of an ISO7638 connector, wherein a scalability of the datalink is provided. The bandwidth of the connector device 2 depends on the number of applied split pins 1 I split sockets 8 with differential pair cables 15
Fig. 2 discloses a differential socket 8 (split socket 8) comprising second contact parts 210, 211 and an isolating socket casing 213 carrying the contact parts 210, 211. The second contact parts 210, 211 each comprise an inclined, top face 210a, 211 a, respectively, for receiving the first contact parts 10, 11 of the pin 1 as depicted in fig. 1 . At the bottom 8a of the socket 8 the contact parts 210, 211 are connected to the electric lines 20, 21 , which are twisted as a twisted pair cable 15.
The second contact parts 210, 211 of the socket 8 can comprise a bow-shaped form, as is e.g. visible in the top view of Fig.2.
The socket casing 213 is preferably the same as a socket package of a common, conventional single-ended socket 108. Fig. 4 to 6 prove that the inventive split pin 1 and the inventive split socket 8 can be combined with conventional single-ended pins 101 and single-ended sockets 108:
The two-line pin-socket-assembly 40 of fig. 4 depicts a two-line-connection, in particular a differential electrical connection of a differential split pin 1 in a differential split socket 8;
In the one-line pin-socket-assembly 41 of Fig. 5 the split pin 1 is plugged into a conventional single-ended socket 108. Thus only a one-line connection is possible, wherein the two contact parts 10, 11 of the split pin 1 are short-circuited by the single-ended socket 108.
In the one-line pin-socket-assembly 42 of Fig. 6 a conventional single-ended pin 101 is plugged into a split socket 8, which then results in a one-line data connection.
Fig. 9 discloses a second connector device 202, which is a female connector device and comprises a second package 216 and differential (split) sockets 8 and single-ended sockets 108. The second connector device 202 is provided for receiving the first connector device 2, as is indicated in Fig. 9. Thus the first package 16 of the first connector device 2 and the second package 216 of the second connector device 202 comprise mating forms and profilings, and mating pin-socket arrangements 40, 41 , 42 according to Fig. 4, 5, 6, for plugging the first connector device 2 into the second connector device 202.
According to Fig. 7, the electric cables extending from the first connector device 2 and second connector devices 202 can be realised as twisted pair lines 15 extending from the split pins 1 and split sockets 8, and single lines 115 extending from conventional contact means 101 , 108, i.e. single-ended pins 101 or single-ended sockets 108.
The first connector device 2 and the second connector device 202 can be used in conventional, common standards like CAN, CAN FD, as described in the standard specification ISO 11898-2:2016, or AS CAN, further the standard ethernet AMT can be used. Furthermore, future standards with higher data transmission and/or higher bandwidth can be used.
Manufacturing of the pin 1 , the socket 8 and the connector devices 2, 202 can be realised with conventional manufacturing equipment. The packages 16, 216 can be manufactured e.g. by injection molding or die casting.
Preferably, plastic packages of conventional connectors 102 can be used, in which a split pin 1 is introduced instead of a single-ended pin 101 , or a split socket 8 is introduced instead of a conventional single-ended socket 108.
Further, according to the invention a truck bus system 60 is provided, which comprises an ECU 300 and one or more electronical devices like sensors 310 and/or control units like a control unit of an ECAS (electronically controlled air supply) ; further, the bus system preferably comprises an interface device 500 for a connection to a trailer 1400.
Accordingly, a trailer bus system 60 is provided, which comprises an ECU 1300, one or more sensors 1310, and preferably an interface device 1500 for a connection to the truck 400.
In the bus systems 60 the respective ECU 300, 1300 comprises a first connector device 2, which is plugged into a second connector device 202 of a bus cable 1015 comprising at least one twisted pair cable 15.
The truck bus systems 60 can comprise an interface device 500 provided in the truck 400, and the trailer bus systems 1060 can comprise an interface device 1500 provided in the trailerl 400, wherein the interface devices 500, 1500 realize a truck-trailer data connection 320. Thus in Fig. 10 a truck-trailer combination 420 is realized, with a truck-trailer data connection (trailer coupling) 320 between the truck 400 and the trailer 1400, said truck-trailer data connection 320 is plugged into the interface devices 500, 1500.
According to the invention the truck 400 can be coupled to several, different trailers, thus enabling different truck-trailer combinations 420.
For example, the trailer 400 can comprise an inventive trailer coupling connector 2, 202 and the trailer 1400 can comprise a conventional trailer coupling connector 102, or vice versa.
Fig. 11 discloses a preferred embodiment of an interface device 500 comprising: a first High-speed data bus device 501 , a second High-speed data bus device 502, an ISO-CAN bus device 504, a truck control unit 506 for diagnosis and channel decision, a first switch 508, and a second switch 510. The first High-speed data bus device 501 comprises an internal data port 501 a for a first internal data bus 520 of the vehicle 400; accordingly, the second High-speed data bus device 502 comprises an internal data port 502a for a second internal data bus 522 of the vehicle 400, which second internal data bus 522 may be the same as the first internal data bus 520.
The first switch 508 is connected via a first twisted pair cable 15a to a first contact means 551 , which in this embodiments is a pin 1 . Accordingly, the second twisted pair cable 15b is connected via a second twisted pair cable 15a to a second contact means 552, which - in this embodiment - is a pin 1 , too; however, the contact means 551 , 552 connected to the twisted pair cables 15a, 15b may be sockets 8 or mixed, i.e. a pin 1 and a socket 8. Thus the truck interface device 500 comprises two contact means 551 , 552 for external plugging. The ISO-CAN bus device 504 comprises an internal bus port 504a and an external bus port 504b, which in turn is composed of a CAN-H port 504b-H (CAN High) and a CAN-L port 504b-L (CAN Low).
A first input realized by external ports 501 b1 and 501 b2 of the first High-speed data bus device 501 and a second input realized by the CAN-H port 504b-H are connected to the first switch 508, which switches one of these two inputs onto a first twisted pair cable 15a according to a given standard e.g. 100BaseT1 or 1000BaseT1 .
Thus in first switching position of the first switch 508 the external ports 501 b1 and 501 b2 of the first High-speed data bus device 501 are connected to the two lines of the first twisted pair cable 15a enabling a differential data transmission via the first twisted pair cable 15a.
In the second switching position of the first switch 508 the CAN-H port 504b-H is connected to both lines of the first twisted pair cable 15a.
Accordingly, a first input realized by external ports 502b1 and 502b2 of the second High-speed data bus device 502 and a second input realized by the CAN-L port 504b-L are input into the second switch 510, which switches one of these two inputs onto a second twisted pair cable 15b according to the a given standard e.g. 100BaseT1 or 1000BaseT1 .
Thus in a first switching position of the second switch 510 the external ports 502b1 and 502b2 of the second High-speed data bus device 502 are connected to the two lines of the second twisted pair cable 15b enabling a differential data transmission via the second twisted pair cable 15b.
In the second switching position of the second switch 510 the CAN-L port 504b-L is connected to both lines of the second twisted pair cable 15b. The truck control unit 506 controls the switches 508 and 510 by switching signals S1 and S2, which switch the switches 508 and 510 separately.
Thus a total of four switching combinations are possible, since each switching position of the first switch 508 can be combined with each switching position of the second switch 510, respectively. Therefore, two symmetric and two asymmetric switching positions can be chosen:
In a first symmetric switching position the first High-speed data bus device 501 is connected to the two lines of the first twisted pair cable 15a, and the second High-speed data bus device 502 is connected to the two lines of the second twisted pair cable 15b. This switching position or switching position combination enables an independent parallel High-speed data transfer via the two twisted pair cables 15a, 15b
In the second symmetric switching position the CAN-L port 504b-L is connected to the first twisted pair cable 15a and the CAN-H port 504b-H is connected to the second twisted pair cable 15b; this enables a differential ISO-CAN data transfer according to an ISO-CAN standard via the two twisted pair cables 15a, 15b.
The further two switching positions are asymmetrical with respect to the switches 508 and 510. Thus a combination of an ISO-CAN via a single-wire connection and a High-speed data transfer is possible, which enables a parallel CAN data transfer and High-Speed data transfer.
In particular in combination with an additional GND line, as described with respect to Fig. 13 below, these asymmetrical combinations can use one channel (cable 15a or 15b) for High-speed data transfer and the other one for ISO-CAN relative to GND. The truck control unit 506 chooses between the switching positions on basis of a diagnosis. This diagnosis can e.g. be made by detecting the data transfer output by the CAN device 504 and the High-speed data devices 501 , 502. Thus an intelligent switching system is realized, in which the switches 508, 510 are controlled in dependence of an available data transfer.
According to the embodiment of Fig. 11 a the CAN-H port 504b-H (CAN High) and a CAN-L port 504b-L (CAN Low) can be separated from the first and second switch 508, 510 by potential isolation switches 512, 513, which are depicted in dotted lines. These potential isolation switches 512, 513 are controlled by the control unit 506, preferably by switching with the signal S1 or in conformity with the signal S1 , so that they are open in the second switching position of the High-speed data transfer, in which not input from the ISO-CAN device 504 is transferred.
These potential isolation switches 512, 513 are not necessary for the first and second switching positions of the switches 508, 510; however, they help to avoid problematic potential feedback or signal noise. This additional means therefore helps to improve the reliability without relevant hardware effort.
Fig. 12 discloses a first embodiment of a data communication between the truck 400 and the trailer 1400 via a truck-trailer data connection 320 with two external twisted pair cables 320-15. The first external twisted pair cable 320-15 comprises a socket 8, which is plugged into the first contact means 551 of the truck 400 and the other end of the twisted pair cable is plugged into the first contact means 551 of the trailer 1400
Accordingly, a second external twisted pair cable 320-15 comprising a socket 8, which is plugged into the second contact means 552 of the truck 400 and the other end of the external twisted pair cable 320-15 is plugged into the second contact means 552 of the trailed 400. Fig. 13 discloses a further embodiment, in which the interface devices 500 and 1500 each comprise an additional ground contact 553, in particular ground pin 553, and the truck-trailer data connection 320 comprises an additional ground line 320-18. In the second switching position of the ISO-CAN data transfer e.g. the CAN-L signal is provided in conjunction with an ISO CAN GND Pin, in particular according to ISO12098 and ISO 7638. The embodiment enables shielded twisted pair cables 320-15 to enhance the transmission channel quality. Using a data link 320 with shielded twisted pair cables 320-15, in particular a shielding 320-55 for both twisted pair cables 320-15, increases EMC immunity, reduced EMC radiation and will also reduce the cross talk to other cables. The cable shieldings 320-55 of the twisted pair cables 320-15 are connected to the GND Pin 553, preferable to the GND Pin reserved for ISO CAN (e.g. ISO 7638 Pin3 and ISO12098 Pin13). With this embodiment the connectors 551 / 552 do not need a 360° shielding of the data transmission pin.
In the interface device 500 of the truck 400 and accordingly in the interface device 1500 of the trailer 1400 the internal twisted pair cables 15a, 15b are shielded by a shielding 555, 556, respectively.
In the interface device 500 of the truck 400 the shielding 555 is capacitively connected via capacitive couplings (capacitors) 560 to GND so that DC current on the shielding is not possible. In the trailer device 1500 the shieldings 1555 and 1556 are also capacitively connected via capacitive couplings 560 to GND.
Thus a complete shielding of the data line is realizable.
In the two asymmetrical switching positions of the switches 508 and 510 as described above, each ISO-CAN can be used relative to GND.
Thus a total of four switching combinations of switches 508 and 510 enable the following situations:
Symmetrical switching positions: 1 . ISO-CAN -> High speed data 1 channel und data 2 channel
2. ISO-CAN differential --> no High speed data channel
Asymmetrical switching positions: 3. ISO-CAN L (to GND) --> High speed data 1 channel via cable 15a
4. ISO-CAN H (to GND) --> High speed data 2 channel via cable 15b
Fig. 14 is a schematic view of an interface device according to a further embodiment of the invention, for realization on a printed circuit board (PCB) 480. The switches 508, 510 are directly connected to the contact means 551 ,
552 rather than using an internal twisted pair cable 15a, 15b as in Fig. 12.
The switch circuitry 480 of device 500 can be integrated in the Truck ECU 300, and/or the switch circuitry 480 of device 1500 can be integrated in the Trailer ECU
1300.
List of reference numerals (part of the description)
1 , 8 contact means, i. e. split electrical pin 1 or split electrical socket 8
1 a bottom end
1 b top end
2 first connector (male part)
8 split electrical socket
8a bottom side of the socket 8
8b top side of the socket 8
10 first contact part of the first connector 2
11 second contact part of the first connector 2
12 impedance, made of dielectric material, in the first connector 2
15 twisted pair cable (differential pair cable), comprising electrical lines 15a, 15b twisted pair cables
16 package of the first connector 2
17 interior space of the first connector 2
20 first electric line
21 second electric line
30 top face area
30-10 top face area part of the first contact part 10
30-11 top face area part of the second contact part 11
40 two-line pin-two-line-socket-assembly of fig. 4 41 one-line pin-socket-assembly of Fig. 5
42 one-line pin-socket-assembly of Fig. 6
60 bus system
101 single-ended pins
108 single-ended socket (conventional)
115 single-ended cable, one-phase cable
202 second connector (female part)
210 first contact part of the second connector 202
210b top face of the first contact part 210
211 second contact part of the second connector 202
211 b top face of the second contact part 211
212 receiving space of the socket 8
213 socket casing of the socket 8
216 package of the second connector 202
217 interior space of the second connector 202
300 electric device, e.g. ECU
310 electric device, in particular sensor of the truck 400
1310 electric device, in particular sensor of the trailer 1400
320 truck-trailer data connection
320-15 twisted pair cable of truck-trailer data connection 320
320-18 additional ground line of the truck-trailer data connection 320
320-55 shielding of the truck-trailer data connection 320
400 truck, tractor vehicle
1400 trailer, trailer vehicle
420 truck-trailer combination
400-2, 400-202 truck connector
1400-102 conventional trailer connector 480 printed circuit board PCB
500 interface device of the tractor vehicle (truck)
501 first High-speed data bus device 501
501a data port
501 b1 , 501 b2 output ports
502 plug-in connector device (interface device?) second High-speed data bus device
502a data port
502b1 , 502b2 external ports
504 ISO-CAN bus device
504a internal bus port
504b external bus ports
504b-H CAN-H port
504b-L CAN-L port
506 control unit
508 first switch
510 second switch
520 first internal data bus
522 second internal data bus
551 first contact means
552 second contact means
555 shielding of twisted pair cable 15a in truck 400
556 shielding of twisted pair cable 15b in truck 400
560 capacitive couplings at PCB 480 in the truck 400 and trailer 1400
1015 bus cable, comprising at least one twisted pair cable 15
1555 shielding of twisted pair cable 15a in trailer 1400
1556 shielding of twisted pair cable 15b in trailer 1400 1500 trailer interface device
1506 trailer control unit
1508, 1510 switches in the trailer interface device 1500
A symmetry axis
B lateral direction
R resistance I impedance
P plug-in direction L1 length of pin 1
D1 diameter of pin 1
51 first switching signal
52 second switching signal

Claims

- 29 -
Claims
1 . Electrical plug-in connector device (2, 202) for a data line connection in or between vehicles (400, 1400), said electrical plug-in connector device (2, 202) comprising: a package (16, 216) made of insulating material, at least one contact means (1 , 8) being provided for a plug-in connection into a mating contact means (8, 1 ) in a plug-in direction (P), said contact means (1 , 8) being a pin (1 ) or a socket (8) for receiving a pin (1 ), characterized in that said contact means (1 , 8) comprises two electrical contact parts (10, 11 ; 210, 211 ) extending in said plug-in direction (P), wherein two electrical lines (20, 21 ) are connected to said two contact parts (10, 11 , 210, 211) and provided for a differential data transmission.
2. Electrical plug-in connector device (2, 202) according to claim 1 , wherein said two electrical lines (20, 21 ) are twisted thereby forming a twisted pair cable (15) extending from said contact means (1 , 8), wherein said two contact parts (10, 11 , 210, 211 ) and said twisted pair cable (15) being provided for a differential transmission standard, in particular for one or more of the following transmission standards: Ethernet, Automotive Ethernet and HDBaseT, 100BaseT1 , 1000BaseT1 on various speed grades as well as ISO CAN 11992-1 and ISO 11898-2:2016.
3. Electrical plug-in connector device (2, 202) according to claim 1 or 2, wherein at least one said contact means (1 ) is an electrical pin (1 ), wherein said two contact parts (10, 11 ) are separated, in particular in a lateral direction (B), by insulation material (12), wherein said two contact parts (10, 11 ) and said insulation material (12) - 30 - extend in said plug-in direction (P).
4. Electrical plug-in connector device (2, 202) according to claim 3, wherein said pin (1 ) comprises a tapering top end (1 b) and/or a tapering top face area (30), in particular with a conical or frusto-conical form, wherein each of said two contact parts (10, 11 ) form a part of said top end (1 b) or said top face area (30).
5. Electrical plug-in connector device (2) according to one of claims 3 to 5, wherein said resistor (12), in particular made of a dielectric material, defines a line impedance (R) between said first contact part (10) and said second contact part (11 ) according to a differential transmission standard, e. g. an electrical line impedance (R) of 100 or 120 .
6. Electrical plug-in connector device (202) according to one of the preceding claims, wherein at least one of said contact means (1 ) is a socket (8) for receiving a pin (1 ), said socket (8) extending in said plug-in direction (P), wherein a first contact part (210) and a second contact part (211 ) of said contact parts (210, 211 ) are separated in a lateral direction (B) by a receiving space (212) for receiving said pin (1 ).
7. Electrical plug-in connector device (202) according to claim 6, wherein said contact parts (210, 211 ) of said socket (8) comprise
- a bow-shaped form and/or
- a tapering or sloping top part (210b, 211 b), in particular defining a conical area, for receiving and guiding said pin (1 ).
8. Electrical plug-in connector device (2, 202) according to one of the preceding claims, wherein said contact means (1 , 8) is compatible for receiving a single-ended contact means (101 , 108) comprising only one single-ended contact part (110), thereby connecting said two contact parts (10, 11 , 210,211 ) of said contact means (1 , 8) with said single-ended contact part (110) and short-circuiting said two contact parts (10, 11 , 210,211 ) with each other. Electrical plug-in connector device (2, 202) according to one of the preceding claims, wherein said electrical plug-in connector device (2, 202) further comprises at least one single-ended contact means (101 , 108), wherein said single-ended contact means (101 , 108) comprises only one contact part (110) and one electrical line (115) extending from said contact part (110). Interface device (500) comprising:
- a first High-speed data bus device (501 ), a second High-speed data bus device (502), and an ISO-CAN bus device (504) with a first CAN port (CAN-L) and a second CAN port (CAN-H) ,
- a first switch (508) and a second switch (510),
- an electrical plug-in connector device (2, 202) according to one of the preceding claims, comprising a first contact means (551 ) and a second contact means (552) each contact means (551 , 552) comprising two contact parts, respectively, and a control unit (506) for switching said first and second switch between at least a first and a second symmetric switching position, wherein said first switch (508) is connected to said first contact means (551 ) and said second switch (510) is connected to said second contact means (552), wherein in said first symmetric switching position said first High-speed data bus device (501 ) is connected to said first contact means (551 ) and said second High-speed data bus device (502) is connected to said second contact means (551 ), and in said second symmetric switching position said first CAN port (CAN-L) is connected to said first contact means (551 ) and said second CAN port (CAN-H) is connected to said second contact means (552), in particular for a differential ISO-CAN data transfer.
11 . Interface device (500) according to claim 10, wherein a first twisted pair cable (15a) is provided between said first switch (508) and said first contact means (551 ), and a second twisted pair cable (15b) is provided between said second switch (510) and said second contact means (552), second contact means (552).
12. Interface device (500) according to claim 10, wherein said switches (508, 510) and said contact means (551 , 552) are provided on a printed circuit board (480), preferably with a direct connection of said switches (508, 510) to said contact means (551 , 552)
13. Interface device (500) according to one of claims 10 to 12, wherein an external twisted pair cable (320-15) of a truck-trailer data connection (320) is connected to said first and second contact means (551 , 552), respectively.
14. Interface device (500) according to one of claims 10 to 13, wherein potential isolation switches (512, 513) are provided between said external ports (504b-H and 504b-L) and said switches (508, 510), wherein said potential isolation switches (512, 513) are switched by said control unit (506) simultaneously or in parallel with said switches (508, 510), in order to provide a potential isolation between said ISO-CAN device (504) and said switches (508, 510) in said first switching position.
15. Interface device (500) according to one of claims 10 to 14, further comprising an additional ground contact (553) provided in said electrical - 33 - plug-in device (2, 202), to be connected to a ground line (320-18). Interface device (500) according to claim 15, wherein said control unit (506) is provided for switching said first and second switch (508, 510) into one of three or four switching positions, which are said first and said second symmetric switching positions and one or two asymmetrical switching positions, wherein in said one or two asymmetrical switching positions
- one switch (508, 510) is switched for connecting one of said High-speed data bus devices (501 ; 502) to said first or second contact means (551 ; 552), and
- the other switch (510, 508) is switched for connecting one of said CAN ports (CAN-L, CAN-H) ) to the other one of said first or second contact means (551 ; 552), in particular for an ISO-CAN data transfer relative to said ground contact (553) or said ground line (320-18). Interface device (500) according to claim 15 or 16, wherein said first twisted pair cable (15a) and said second twisted pair cable (15b) each comprise a shielding (555, 556) and wherein said shieldings (555, 556) are connected to said ground line (320-18) in a connector package (16, 216) and a shielding ending at a PCB (480) is connected to said ground line via capacitive couplings (560). Bus system (60) in a vehicle (400, 1400) and/or between vehicles, comprising an ECU (300, 1300) and at least an electronic device (310, 1310), wherein said ECU (300, 1300) and said electronic device (310, 1310) comprise an electrical plug-in connector device (2, 202) according to one of claims 1 to 9, respectively, and wherein said ECU (300, 1300) and said electronic device (310, 1310) are connected via cables (1015), - 34 - wherein said cables (1015) comprise at least one twisted pair cable (15) and electrical plug-in connector devices (2, 202) according to one of claims 1 to 9.
19. Bus system (60) according to claim 18, wherein at least one electronic device comprises a conventional connector (102) comprising one or more single-ended contact means (101 , 108), which is/are connected to said electrical plug-in connector device (2, 202) of said ECU (300, 1300).
20. Bus system (60) according to claim 18 or 19, further comprising an interface device (500, 1500) according to one of claims 10 to 15, which is connected to said ECU (300, 1300).
21 .Tractor -trailer combination (420) comprising a tractor vehicle (400), a trailer vehicle (1400) and a truck-trailer data connection (320) between said tractor vehicle (400) and said trailer vehicle (1400), said tractor vehicle (400) and/or said trailer vehicle (1400) comprising an interface device (500, 1500) according to one of claims 10 to 17, wherein said truck-trailer data connection (320) comprising at least one or two electrical plug-in connector devices (2, 202) according to one of claims 1 to 9 is plugged into said Interface devices (500, 1500).
22. Tractor -trailer combination (420) according to claim 21 , wherein said truck-trailer data connection (320) comprises an additional ground line (320-18) which is plugged into ground contacts (553) of said interface devices (500, 1500), preferably according to ISO12098.
PCT/EP2020/075126 2020-09-09 2020-09-09 Electrical plug-in connector device, interface device and bus system for a data line connection in or between vehicles WO2022053129A1 (en)

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DE102018132867A1 (en) 2018-12-19 2020-06-25 Wabco Gmbh Connector device for a vehicle for transmitting data between coupled vehicles and system and vehicle with it

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6514090B1 (en) 1998-04-29 2003-02-04 International Business Machines Corporation Method and apparatus for high speed differential signaling, employing split pin connectors and split via technology
DE202012007577U1 (en) * 2012-08-07 2012-09-13 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connectors
US9590342B1 (en) * 2016-06-29 2017-03-07 R&S Shaeffer Properties LLC Receptacle assemblies
US20180248322A1 (en) * 2017-02-27 2018-08-30 Hirose Electric Co., Ltd. Connector having plural contacts forming differential pairs and connector device using the same
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