EP1673274A1 - Train routier articule comportant un transformateur de signaux - Google Patents

Train routier articule comportant un transformateur de signaux

Info

Publication number
EP1673274A1
EP1673274A1 EP04765771A EP04765771A EP1673274A1 EP 1673274 A1 EP1673274 A1 EP 1673274A1 EP 04765771 A EP04765771 A EP 04765771A EP 04765771 A EP04765771 A EP 04765771A EP 1673274 A1 EP1673274 A1 EP 1673274A1
Authority
EP
European Patent Office
Prior art keywords
trailer
towing vehicle
semitrailer
power supply
control data
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP04765771A
Other languages
German (de)
English (en)
Inventor
Ottmar Gehring
Harro Heilmann
Andreas Schwarzhaupt
Gernot Spiegelberg
Armin Sulzmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1673274A1 publication Critical patent/EP1673274A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
    • B62D53/08—Fifth wheel traction couplings

Definitions

  • the invention relates to a tractor-trailer with a towing vehicle, a trailer and a fifth wheel coupling, which has a coupling part assigned to the towing vehicle and a trailer for the mechanical connection between the towing vehicle and the trailer, a control device for controlling components of the trailer being provided on the towing vehicle and the trailer has data lines for the transmission of the control data and power supply lines for the components and the coupling part assigned to the towing vehicle has a fifth wheel plate and the coupling part assigned to the trailer is designed as a matching coupling pin.
  • the invention further relates to a towing vehicle suitable for use in the articulated lorry with a wireless signal transmitter or the trailer suitable for this.
  • components are increasingly operated electronically via control devices in the towing vehicle.
  • Such components can be braking systems for the trailer, electrically operated air pressure systems and all electrical actuators in the trailer.
  • sensors for monitoring or diagnosing the trailer or the products transported therein can also be controlled via a control device in the towing vehicle.
  • Such components are controlled in conventional articulated vehicles by control signals which a wired line is transferred from the towing vehicle to the trailer.
  • DE 197 03 144 C2 discloses a towing vehicle with a semi-trailer which is equipped with a reversing aid controlled by the towing vehicle. If the truck resets, a switch on the reversing light is closed, which simultaneously supplies an indicator in the towing vehicle with voltage. The signals from the reversing aid coming from the semitrailer are then evaluated via a control unit and transmitted for display in the towing vehicle. The data is forwarded serially for display via a two-wire supply line. The towing vehicle is connected to the trailer via plug connections. The signal of the reversing aid is applied to the electrical supply line of the reversing light, i.e. H. modulated onto the supply voltages there using a special modulation method.
  • a frequency shift keying (FSK) method for modulation is proposed.
  • the supply voltage of the reversing light acts as a carrier signal, onto which the different control data are modulated.
  • the signals are output by the sensors of the reversing control unit of the towing vehicle on the supply line to the right turn signal, which is connected to the indicator light on the trailer.
  • the signal of the reversing aid can be transmitted to the existing supply line and the connector on the coupling between the towing vehicle and the trailer and can be shown there in the display.
  • EP 0 425 766 B1 discloses an electrical brake control for motor vehicles with a mechanical trailer or fifth wheel coupling with a standard plug-in device for the transmission of the electrical signals to the trailer.
  • a socket is provided, which must be electrically connected when the trailer is connected to the towing vehicle.
  • the necessary control signal for the trailer's braking system is then transmitted via the coupling interface.
  • a vehicle diagnostic system is provided in the trailer, which is capable of diagnosing at least the brake pressure regulator, but possibly also the electronic regulator with the connected peripheral devices. For this diagnostic purpose, data exchange between the diagnostic system of the towing vehicle and the brake pressure regulator in the trailer is required.
  • a bidirectional data transmission via the plug connector is provided between the towing vehicle and the semi-trailer, the messages being transmitted in the form of data blocks, similarly to data buses.
  • a voltage generator is provided in the towing vehicle for generating a periodically fluctuating energy signal
  • a first transmitter is arranged in the area of the fifth wheel of the towing vehicle in order to transmit the energy signal to a second transmitter in the area of the coupling pin of the trailer, the total signal transmitted by inductive coupling for Power supply of a component is present on the power supply line of the trailer.
  • control signals can also be modulated onto the carrier voltage.
  • the voltage generator in the towing vehicle can either generate a real AC voltage with an alternating voltage sign, as is guaranteed, for example, by a sine function, or the periodically fluctuating energy signal is generated by superimposing AC voltage and DC current, so that the voltage between zero potential and a positive potential fluctuates.
  • the transformer then couples a pure AC voltage into the transformer on the trailer and, depending on the component to be supplied in the trailer, this is then rectified or, for example, lamps can also be controlled by AC voltage.
  • the particularly advantageous energy transmission from the towing vehicle to the semi-trailer means that there is no need for a separate generator in the semi-trailer and there is also no need for a connector between the towing vehicle and the semi-trailer, since the energy is transmitted inductively between the towing vehicle and the semi-trailer.
  • the voltage generator in the towing vehicle generates, for example, a sinusoidal carrier signal, which may be superimposed with a DC voltage to generate a periodically fluctuating DC voltage signal.
  • a rectifier can then optionally be provided in the trailer, which rectifies the power supply voltage transmitted by the transformer in converts current so that the component of the trailer can be supplied with DC voltage.
  • a signal modulator is additionally provided in the towing vehicle, which modulates the control data onto the energy signal functioning as a carrier signal and transmits it to the first transmitter in the area of the fifth wheel of the towing vehicle.
  • the carrier signal with the modulated control data is transmitted to a second transmitter in the region of the coupling pin of the trailer, a demodulator being provided in the trailer in order to separate the control data of the overall signal transmitted by inductive coupling from an energy-carrying power supply voltage which is used to supply power to a component on the Power supply line of the trailer is present.
  • control data of the control device of the towing vehicle are modulated onto the carrier signal and transmitted wirelessly to the trailer.
  • the demodulator then separates the control data into the control data and the energy-carrying power supply voltage on the side of the trailer, so that on the one hand the component is supplied with current from the overall signal and on the other hand the control data for the components are generated.
  • This can be done without a wired transmission from the towing vehicle to the trailer by inductive coupling between the two transmitters.
  • a plug-in connector which transmits the signals between the towing vehicle and the trailer in a wired manner.
  • the transmitter in the saddle plate of the towing vehicle is a toroidal coil, the linear or curved longitudinal axis of which is essentially parallel is arranged to the saddle plate.
  • the transmitter in the region of the coupling pin of the trailer can also be an annular coil, the straight or curved axis of which is arranged essentially parallel to the plane of the fifth wheel plate when the semitrailer is coupled.
  • the ring coil of the second transformer is also arranged parallel to the ring coil of the first transformer, so that an optimal inductive coupling can take place.
  • the transmitter can be bent in a U-shape and attached below or above the saddle plate, optionally in a groove. The second transmitter is then preferably fastened in a groove on the coupling pin of the trailer, so that the transmitters are arranged close to one another in the coupled state of the semitrailer.
  • the antenna can be designed as an antenna, which are arranged in the area of the saddle plate or on the trailer and are designed to transmit the energy signal, which also functions as a carrier signal, to the trailer.
  • the received and demodulated control data is converted by a control unit into the signals required in the trailer with regard to signal level and data format, so that, for example, a CAN data bus can transmit the control data to components such as brakes, indicators, reversing lights and similar components.
  • the scope of protection of the present invention also relates to the towing vehicle of the tractor-trailer alone, insofar as the towing vehicle is suitable for a tractor-trailer according to the invention.
  • the towing vehicle has a fifth wheel coupling with a fifth wheel plate for the mechanical connection between the towing vehicle and the trailer, a control device for controlling components of the trailer being provided on the towing vehicle.
  • a data line is provided for transmitting the control data to the trailer and a power supply line is provided for transmitting the power supply to the components of the trailer.
  • a voltage generator for generating a periodically fluctuating carrier signal is provided in the towing vehicle and a first transmitter is arranged in the area of the fifth wheel of the towing vehicle in order to transmit the carrier signal in the area of a coupling pin of a trailer in order to generate an energy-carrying signal from the signal transmitted by inductive coupling Generate power supply voltage for a component in the trailer.
  • the towing vehicle is characterized by the features that are required for the tractor-trailer according to the invention.
  • This includes the transmitter in the area of the saddle plate, which is designed as an antenna or toroidal coil, the straight or curved longitudinal axis of which is arranged essentially parallel to the plane of the saddle plate.
  • the signal modulator is provided, which modulates the control data onto the carrier signal. The total signal with the modulated control data is then transmitted to the trailer by means of an inductive coupling via a transmitter of the towing vehicle.
  • the trailer is characterized in that a transformer is provided in order to generate an energy-carrying power supply voltage from the overall signal transmitted by inductive coupling from a towing vehicle, which voltage voltage is present on the power supply line of the trailer to supply power to a component.
  • the component is in particular a sensor or actuator that is used to operate the trailer is required.
  • a demodulator is provided in the trailer in order to separate the control data of a towing vehicle for a component in the trailer in the overall signal transmitted by inductive coupling.
  • a battery that is charged by the energy-carrying power supply voltage is preferably fed by the power supply signal obtained in the trailer.
  • the invention further develops conventional semitrailer trucks in that the energy for components of the trailer is made available via inductive coupling, so that no additional energy supply has to be present in the trailer. Furthermore, a control signal for controlling the components of the trailer can be modulated and the control signal is used for controlling the components after demodulation.
  • the control data are, for example, switch-on and switch-off signals for a component, but physical signals from a sensor in the towing vehicle are also transmitted in coded form to the component in the trailer.
  • the modulation can be, for example, frequency modulation or pulse code modulation, which is transmitted to the preferably sinusoidal carrier signal, possibly with a DC voltage superimposition.
  • FIG. 1 shows a semitrailer with a fifth wheel and the wireless signal transmission device arranged thereon and
  • Fig. 2 is a view of the fifth wheel with a first transmitter and the coupling pin attached to the trailer with a second transmitter according to the present invention.
  • FIG. 1 shows a semitrailer 1 with a vehicle 2 and a trailer 3 coupled to it.
  • a fifth wheel 4 is provided between the tractor 2 and the trailer 3 in order to mechanically connect the tractor 2 and the trailer 3.
  • the fifth wheel coupling 4 consists of a fifth wheel plate 5, which is attached to the towing vehicle 2, and a coupling pin 6, which is attached to the trailer 3.
  • a wireless communication and energy transmission device is provided, which consists of a first transmitter 7 and a second transmitter 8.
  • a control device 10 is provided in the towing vehicle 2 for controlling components 9 arranged inside the trailer 3, for example an actuator such as a compressor for the brake system of the trailer 3 or a sensor which detects the temperature in the trailer.
  • the control device 10 is coupled to other control devices via a data bus, for example a CAN data bus or a Flex-Ray data bus.
  • the data bus 11 is additionally provided in order to transmit control data or control messages from the control unit 10 to a control device 12 coupled to the first transmitter 7.
  • the transmitter 7 is fed via the control device 12 with an energy or carrier signal from a battery 13, so that the energy or. Carrier signal can be transmitted to the first transmitter 7 to the second transmitter 8 in the region of the coupling pin 6.
  • a power supply line 14 is mounted in the towing vehicle 2.
  • a further control device 15 which is arranged within the trailer 3, is connected to the second transmitter 8.
  • the component 9 is supplied with energy via the power supply line 16, while the control data are connected to the component 9 via a data bus 17 or a corresponding control line.
  • control data for controlling, for example, the brake system or the brake lamps are provided and transmitted to the component 9 in the region of the trailer 3.
  • the energy-carrying component i.e. H. transmit the battery signal from the battery 13 to the component 9 via the transmitters 7, 8.
  • the transmitter 7 receives a periodically fluctuating energy signal via the control device and the associated battery 13, the two transmitters 7, 8 interacting like a transformer, so that only an alternating voltage is applied to the transmitter 8 by inductive coupling.
  • the periodically fluctuating energy signal can be an alternating signal, for example a sinusoidal alternating voltage signal.
  • the periodically fluctuating energy signal can also be a DC voltage signal that arises from the fact that an alternating signal is superimposed by a DC voltage signal, so that the sinusoidal signal only fluctuates between the zero potential and the potential of the battery 13.
  • the AC voltage signal can then be rectified, for example in the control device 15, for example to control other control devices 18 within the trailer with direct voltage.
  • Component 9 is, for example, an AC-operated compressor for the brake pressure booster in the trailer.
  • the energy signal is simultaneously a carrier signal and a voltage is modulated onto this periodically fluctuating carrier signal, which has the information of the control data of the control device 10.
  • a modulator is additionally provided in the control unit 12 in order to modulate the control data of the data bus 11 in a suitable form, for example by frequency modulation or pulse modulation, onto the carrier signal.
  • a demodulator is then provided within the control unit 15, which separates the total inductive signal received by the transmitter 8 again into the control data on the data line 17 and the energy supply current on the voltage supply line 16 by demodulation.
  • FIG. 2 shows the fifth wheel coupling 4 in greater detail, wherein it can be seen that the first transmitter 7 is arranged in a groove 19 on the upper side of the fifth wheel plate 5 and is cast, for example, by means of a plastic.
  • the groove is open at the top and U-shaped to receive a U-shaped ring coil or an antenna.
  • the second transformer 8 can also be provided, as shown at 21, as an annular coil arranged on a mounting plate below the semi-trailer 3, which is then arranged directly above the saddle plate, possibly in a groove below the semi-trailer 3.
  • Another alternative is to arrange the first transmitter 7 on the underside of the fifth wheel plate and to arrange it within the free installation space in the fifth wheel plate 5 in such a way that, when the fifth wheel coupling 4 is coupled, the first transformer is arranged next to the second transmitter 8 on the coupling pin 6 of the trailer 3 is.
  • the saddle plate 5 can then be arranged above the first ring coil 7 and can be provided as a shielding housing, so that the inductive coupling is reflected by the shielding effect within the housing and the inductive coupling takes place exclusively with the second transformer 8. Since the saddle plate 5 is then arranged around the ring coil 7, the electromagnetic waves are then shielded and only received by the second transmitter 8.
  • a towing vehicle suitable for wireless communication or a suitable trailer is also protected.
  • An advantage of the present invention is that connectors can be omitted both for data transmission and for energy transmission, since the signals are transmitted to the semitrailer of the semitrailer 1 by inductive coupling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un train routier articulé (1) comportant un véhicule tracteur (2), une semi-remorque (3) et une sellette d'attelage (4) qui présente un élément d'accouplement (5) associé au véhicule tracteur (2) et un élément d'accouplement associé à la semi-remorque (3), servant à établir une liaison mécanique entre le véhicule tracteur (2) et la semi-remorque (3). Un dispositif de commande (10) servant à commander des composants (2) de la semi-remorque (3) est situé dans le véhicule tracteur (2). La semi-remorque (3) présente des lignes de données (17), servant à la transmission des données de commande, et des lignes d'alimentation électrique (16) servant à l'alimentation électrique des composants (9). L'élément d'accouplement associé au véhicule tracteur (2) se présente sous la forme d'une sellette (5) et l'élément d'accouplement associé à la semi-remorque (3) se présente sous la forme d'un pivot d'accouplement (6) adapté à la sellette. Un générateur de tension alternative servant à produire un signal de porteuse est placé dans le véhicule tracteur (2). Un modulateur de signaux module les données de commande sur le signal de porteuse. Un transformateur (7) est placé dans la sellette (5) du véhicule tracteur (2) pour transmettre le signal de porteuse avec les données de commande modulées à un transformateur (7,8) se trouvant au niveau du pivot d'accouplement (6) de la semi-remorque (3). Un démodulateur monté dans la semi-remorque (3) sépare le signal total transmis par couplage inductif en une tension d'alimentation électrique, transportant de l'énergie, et en données de commande, la tension d'alimentation électrique servant à l'alimentation électrique d'un composant (9) situé dans la semi-remorque (3).
EP04765771A 2003-10-14 2004-10-02 Train routier articule comportant un transformateur de signaux Withdrawn EP1673274A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347561A DE10347561B3 (de) 2003-10-14 2003-10-14 Stattelzug mit Signalübertrager
PCT/EP2004/011019 WO2005037633A1 (fr) 2003-10-14 2004-10-02 Train routier articule comportant un transformateur de signaux

Publications (1)

Publication Number Publication Date
EP1673274A1 true EP1673274A1 (fr) 2006-06-28

Family

ID=33547220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765771A Withdrawn EP1673274A1 (fr) 2003-10-14 2004-10-02 Train routier articule comportant un transformateur de signaux

Country Status (5)

Country Link
US (1) US20070176394A1 (fr)
EP (1) EP1673274A1 (fr)
JP (1) JP2007508194A (fr)
DE (1) DE10347561B3 (fr)
WO (1) WO2005037633A1 (fr)

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US10670479B2 (en) 2018-02-27 2020-06-02 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US10696109B2 (en) 2017-03-22 2020-06-30 Methode Electronics Malta Ltd. Magnetolastic based sensor assembly
US11084342B2 (en) 2018-02-27 2021-08-10 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11135882B2 (en) 2018-02-27 2021-10-05 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11221262B2 (en) 2018-02-27 2022-01-11 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11491832B2 (en) 2018-02-27 2022-11-08 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing

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US10696109B2 (en) 2017-03-22 2020-06-30 Methode Electronics Malta Ltd. Magnetolastic based sensor assembly
US10940726B2 (en) 2017-03-22 2021-03-09 Methode Electronics Malta Ltd. Magnetoelastic based sensor assembly
US10670479B2 (en) 2018-02-27 2020-06-02 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11084342B2 (en) 2018-02-27 2021-08-10 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11135882B2 (en) 2018-02-27 2021-10-05 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11221262B2 (en) 2018-02-27 2022-01-11 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11491832B2 (en) 2018-02-27 2022-11-08 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing

Also Published As

Publication number Publication date
JP2007508194A (ja) 2007-04-05
US20070176394A1 (en) 2007-08-02
DE10347561B3 (de) 2005-01-27
WO2005037633A1 (fr) 2005-04-28

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