EP2272052B1 - Unité de tachygraphe numérique et système de tachygraphie numérique - Google Patents

Unité de tachygraphe numérique et système de tachygraphie numérique Download PDF

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Publication number
EP2272052B1
EP2272052B1 EP09735600.0A EP09735600A EP2272052B1 EP 2272052 B1 EP2272052 B1 EP 2272052B1 EP 09735600 A EP09735600 A EP 09735600A EP 2272052 B1 EP2272052 B1 EP 2272052B1
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EP
European Patent Office
Prior art keywords
voltage input
supply
data
voltage
ignition
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EP09735600.0A
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German (de)
English (en)
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EP2272052A1 (fr
Inventor
Franz Kimmich
Peter Wolf
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Continental Automotive GmbH
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Continental Automotive GmbH
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C7/00—Details or accessories common to the registering or indicating apparatus of groups G07C3/00 and G07C5/00
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G07C5/0858—Registering performance data using electronic data carriers wherein the data carrier is removable

Definitions

  • the invention relates to a digital tachograph unit and a digital tachograph system having such a tachograph unit.
  • Tachographs are usually control devices intended to be installed in a motor vehicle, particularly in a freight or passenger transport vehicle, to allow monitoring of the activities of a driver of the vehicle.
  • a tachograph has the function of recording, processing and storing driver data relating to activities of a driver of the vehicle in order to enable the monitoring of these activities by a controller.
  • the EP 2 073 174 A2 discloses a digital data transmission system.
  • the digital communication system is configured to operate with a digital tachograph unit having an operational supply input and a data interface for exchanging data stored in the tachograph unit.
  • the data transmission system comprises a first terminal for supplying a supply voltage, an operating supply output which is adapted to be connected to the operating supply input during operation of the data transmission system, and a data discharge unit comprising a supply input which is coupled to the first terminal, an internal data interface can be coupled to the data interface of the tachograph unit, and an external data interface for forwarding data from and / or to the internal data interface, wherein the data unloading unit is set up in response to a request for data transmission between the internal data interface and the data interface of the tachograph unit to control a supply of the operating supply output with an operating voltage derived from the supply voltage applied to the first terminal.
  • the tachograph During operation of the vehicle, the tachograph records, stores and processes vehicle operating parameters, in particular speeds and travel times, but also other information. During standstill of the vehicle, certain parameters must also be recorded, for example working time data during the loading of transported goods. Therefore, it is provided that at least a part of the tachograph permanently with an operating voltage, for. B. a battery voltage of the vehicle is supplied.
  • Vehicles intended for the transport of dangerous goods may also be subject to certain conditions of voltage or voltage in the vehicle in accordance with European transport regulations such as the European Convention for the International Carriage of Dangerous Goods by Road (ADR).
  • European transport regulations such as the European Convention for the International Carriage of Dangerous Goods by Road (ADR).
  • ADR International Carriage of Dangerous Goods by Road
  • only certain currents are permissible for this remaining voltage.
  • the remaining part of the tachograph which is responsible for the recording of the vehicle operating parameters during operation of the vehicle, is supplied, for example, via an ignition-dependent power supply of the vehicle.
  • a readout of the parameters stored in the tachograph for checking or evaluation in an external evaluation point can also be dependent on the ignition-dependent voltage supply.
  • readout is not possible when the ignition of the vehicle is turned off.
  • the recording mode changes in conventional tachographs, so that when controlling the recorded parameters, it may be presumed that a driver has interrupted a prescribed rest time even though only one reading operation has taken place.
  • a digital tachograph unit comprises a permanent voltage input for permanently supplying a supply voltage, an ignition voltage input for supplying the supply voltage during an ignition mode and a separate activation voltage input, which in addition to the continuous voltage input and the Ignition voltage input is to supply the supply voltage during an event operating state.
  • the tachograph unit further comprises a permanent supply unit coupled to the continuous voltage input and configured to electrically supply a continuous supply area of the tachograph unit in response to a voltage at the continuous voltage input, and an operating supply unit coupled to the ignition voltage input and the activation voltage input.
  • the operating supply unit is configured to supply an operating supply area of the tachograph unit in dependence on a voltage at the ignition voltage input and / or at the activation voltage input.
  • a first data processing module is assigned to the continuous service area and configured to perform data transmission via a first interface module, which is assigned to the operating service area, depending on a concern of the supply voltage at the activation voltage input.
  • the tachograph unit thus has, in addition to a continuous voltage input and an ignition voltage input, a separate activation voltage input to which the supply voltage can be applied as compared to a conventional tachograph unit. Since, in a tachograph unit, the permanently applied supply voltage is usually not used to supply the components and assemblies required for data transmission with energy, it may be necessary for a necessary supply of these components and assemblies to take place in other ways. When the ignition of the vehicle is switched off, however, no supply voltage is available at the ignition voltage input for the supply of the data transmission. However, for the proposed tachograph unit, in the case of a request for data transmission, the supply voltage may be provided at the activation voltage input.
  • the application of the supply voltage at the activation voltage input is evaluated by the first data processing module and used to trigger a data transmission.
  • a data transmission is triggered or triggered by the first data processing module via the first interface module by the application of the supply voltage at the activation voltage input.
  • data transmission can thus take place both when the ignition is switched on, ie when the supply voltage is applied to the ignition voltage input, and when the supply voltage is applied to the activation voltage input, data transmission is independent of provision of a permanent supply voltage for the tachograph unit. Furthermore, the energy consumption of the tachograph unit is reduced when the ignition is switched off by, for example, lost power losses.
  • the first data processing module in the tachograph unit is configured, for example, to record and process vehicle operating parameters as a function of a concern of the supply voltage at the ignition voltage input. For example, travel times, speed, driver information, consumption data or other individual parameters can be used as vehicle operating parameters.
  • the first data processing module may further be configured to record and process working time data as a function of non-application of the supply voltage at the ignition voltage input. For example, rest or load times of the vehicle or the driver can be recorded in this state.
  • the tachograph unit has a first sensor module, which is coupled to the first data processing module and is configured to detect the presence of the supply voltage at the ignition voltage input.
  • the ignition mode can be detected via the first sensor module.
  • the tachograph unit may alternatively or additionally comprise a second sensor module coupled to the first data processing module and configured to detect the presence of the supply voltage at the activation voltage input.
  • the event operating state can be determined via the second sensor module.
  • the sensor modules may, for example, comprise simple comparison circuits with which the application of the supply voltage is converted into a corresponding logic signal.
  • the corresponding logic signal can then be evaluated by the first data processing module, which includes, for example, a microcontroller.
  • the operating supply unit electrically supplying the operating supply area is coupled to the ignition voltage input and the activation voltage input via a diode, respectively.
  • the diodes act as polarity reversal protection diodes, which are intended to prevent voltages of the wrong polarity from being applied to the corresponding terminals.
  • it can be achieved by the diodes that a voltage at the ignition voltage input remains unaffected by a voltage at the activation voltage input and vice versa.
  • An embodiment of a digital tachograph system includes a digital tachograph unit according to one of the described embodiments. Furthermore, a system voltage input for the permanent supply of the supply voltage and a data discharge unit are provided.
  • the data discharge unit has a module voltage input coupled to the system voltage input, a second interface module coupled to the first interface module for data transmission, and an external interface module.
  • An activation voltage output of the data discharge unit is coupled to the activation voltage input of the tachograph unit.
  • a second data processing module is provided in the data unloading unit, which is set up to forward data between the second interface module and the external interface module.
  • the second data processing module is suitable, in response to a request for data transmission, a switching means, which couples the module voltage input to the activation voltage output to conductively conduct and cause the event operating state.
  • the data unloading unit can thus be used to establish a data connection to the tachograph unit, wherein the data transmitted via the data connection is forwarded via the external interface module to an external interface or from the external interface.
  • the internal connection between the first and the second interface module can be realized, for example, via a serial bus system.
  • a serial bus systems for example, a CAN bus, K-Line or other commonly used in the vehicle area bus systems in question.
  • the external interface module can be set up, for example, for a wired data transmission via a bus system known from the field of vehicles or the personal computer area.
  • the external interface module is preferably set up for wireless data transmission, for example via a radio-frequency connection. Accordingly, a transmission can take place via an interface controlled by the external interface module, for example via GSM, GPRS, DECT, WLAN, Bluetooth or another radio technology.
  • the data unloading unit can switch through the supply voltage applied on the input side to the module voltage input to the activation voltage output and thus to the activation voltage input of the tachograph unit via the switching means. Since the concern of the supply voltage at the activation voltage input from the first data processing module is considered as a request for data transmission, the data unloading unit supplies the tachograph unit with the supply voltage for the data transmission and at the same time gives a signal for triggering the data transmission. In other words, by switching on the supply voltage, the event operating state of the tachograph system is effected.
  • the module voltage input and the ignition voltage input are at the system voltage input to, for example, a vehicle battery is connected, coupled via a common main switch.
  • the entire vehicle or the entire tachograph system can be switched without power, with the exception of those circuit parts in the tachograph unit, which are assigned to the permanent service area.
  • the voltage supply of the data discharge unit is thus dependent on a switching state of the main switch.
  • a data transmission that is controlled by the data discharge unit can therefore be excluded when the main switch is open. For this reason, it is also not necessary to size the data unloading unit with respect to ADR standards to be kept.
  • a digital tachograph system according to this embodiment is preferable for vehicles subject to ADR regulations.
  • the production costs and the effort for a certification according to the ADR standards is therefore not increased compared to a conventional tachograph system or a conventional tachograph unit, which already has ADR-certified modules.
  • the ignition voltage input is coupled to the system voltage input via an ignition switch.
  • the ignition switch is also configured to effect the ignition mode when closed.
  • the supply of the supply voltage to the activation input may additionally be dependent on an operating state of the tachograph system.
  • this operating state is characterized by a necessary power release, which takes place during a loading or unloading process of the vehicle in order to comply with safety regulations, for example according to the ADR standard.
  • FIG. 1 shows the embodiment of a digital tachograph system with a digital tachograph unit TCO and a data unloading unit RDD. Furthermore, a voltage source BAT is provided, which is connected between a system voltage input V1 and a first reference potential terminal VG1. The voltage source BAT is formed for example by a vehicle battery and set up to deliver a supply voltage VB.
  • the tachograph unit TCO has a continuous voltage input DIN, which is coupled to the system voltage input V1 via a first fuse element F1, and a first reference potential input DG for the permanent supply of a reference potential, which is connected to the first reference potential terminal VG1.
  • the system voltage input V1 forms a first voltage connection point.
  • a second voltage connection point V2 is coupled to the first voltage connection point V1 via a main switch MSP and a second fuse element F2.
  • a third voltage connection point V3 is connected to the second voltage connection point V2 via an ignition switch IGN.
  • a second reference potential terminal VG2 is provided, which is coupled via a switch MSM to the first reference potential terminal VG1.
  • the switches MSP, MSM together form a main switch which can electrically couple the second voltage connection point V2 and the second reference potential connection VG2 to the first voltage connection point V1 and the first reference potential connection VG1, respectively.
  • the tachograph unit TCO also has an ignition voltage input ZIN, which is coupled to the third voltage terminal point V3, and a second reference potential input ZG, which is coupled to the second reference potential terminal VG2.
  • An activation voltage input AIN of the tachograph unit TCO is provided with an activation voltage output AOT of the data unloading unit RDD coupled.
  • a first interface connection IF1 of the tachograph unit TCO is connected via a data bus BUS to a second interface connection IF2 of the data unloading unit RDD.
  • the data discharge unit RDD has a module voltage input RIN which is coupled to the second voltage connection point V2 and a reference voltage input RG which is connected to the second reference potential connection VG2. Furthermore, in the data discharge unit RDD, a switching means SW connecting the module voltage input to the activation voltage output, a module supply unit VSR coupled to the module voltage input RIN and the reference voltage input RG, and a data processing module MC2 having a control connection to the switching means SW and data transmission is coupled to an internal interface module SM2 and an external interface module FM provided. The external interface module FM is coupled to an external interface terminal EXT. A voltage supply of the data processing module MC2 and the interface module SM2 via the module supply unit VSR.
  • the tachograph unit TCO has a permanent supply unit VSD, which is coupled on the input side to the continuous voltage input DIN and the first reference potential input DG, and an operating supply unit VSZ, which is coupled on the input side to the ignition voltage input ZIN via a first diode D1 and to the activation voltage input AIN via a second diode D2 is.
  • the operating supply unit VSZ is also connected to the second reference voltage input ZG.
  • a first data processing module MC1 of the tachograph unit TCO which is supplied electrically by the permanent supply unit, is coupled to a first interface module SM1, which is supplied electrically by the operating supply unit VSZ.
  • a first sensor module SE1 is connected to the ignition voltage input ZIN via a third diode D3.
  • a second sensor module SE2 is connected to the activation voltage input AIN via a fourth diode D4.
  • the sensor modules SE1, SE2 can also be connected directly to the corresponding voltage inputs ZIN, AIN.
  • the diodes D3, D4 may also be integrated into the sensor modules SE1, SE2.
  • a respective output of the sensor modules SE1, SE2 is coupled to the operating supply unit VSZ and the first data processing module MC1.
  • a digital tachograph system in the illustrated form can be used for example in a vehicle.
  • the tachograph unit TCO is set up to record and process vehicle operating parameters during operation of the vehicle.
  • the main switch MSP, MSM and the ignition switch IGN are closed.
  • the tachograph unit TCO only the working time data is detected by the tachograph unit TCO.
  • the data is recorded in the first data processing module MC1, which is permanently supplied with the supply voltage VB of the voltage source BAT or a voltage derived from the supply voltage VB independently of a switch position of the main switch MSP, MSM and the ignition switch IGN.
  • a continuous supply area of the tachograph unit TCO is electrically supplied by the long-term supply unit VSD, while an operating supply area of the tachograph unit TCO is supplied by the operating supply unit VSZ.
  • the first data processing module MC1 is assigned to the continuous service area, while the first interface module SM1 is assigned to the operating service area.
  • Other components or assemblies that are assigned to the operating supply area are not shown for reasons of clarity.
  • the data recorded in the tachograph unit TCO should also be able to be read out for checking purposes.
  • the data is output via the first interface module SM1 or the first interface connection IF1 to the second interface module SM2 or the second interface connection IF2 of the data discharge unit RDD.
  • the corresponding modules are electrically powered.
  • the supply voltage VB can be supplied to supply the remaining modules via both the ignition voltage input ZIN and the activation voltage input AIN.
  • the second data processing module MC2 in the data unloading unit RDD is configured to forward data between the second interface module SM2 and the external interface module FM.
  • the second interface module SM2 By coupling the second interface module SM2 to the first interface module SM1 via the data bus BUS, the data stored in the tachograph unit TCO or in the first data processing module MC1 can thus be read out and output via the external interface EXT.
  • an event operating state can be assumed in dependence on this request, in that the switching means SW is set in a conductive state by the second data processing module MC2.
  • the main switch MSP, MSM is closed, the supply voltage VB is applied to the activation voltage output AOT or the activation voltage input AIN.
  • the operating supply unit VSZ is supplied with the supply voltage VB.
  • the concern of the supply voltage at the activation voltage input AIN and thus the presence of the event operating state can be detected in the first data processing module MC1 via the second sensor module SE2.
  • the concern of the supply voltage VB at the activation voltage input AIN serves at the same time as a signal for the first data processing module to perform a data transfer via the first interface module SM1. Since the application of the supply voltage VB at the ignition voltage input ZIN via the first sensor module SM1 is detected independently of the event operating state, the presence of an ignition operating state can be evaluated for discrimination whether to generally record vehicle operating parameters or only working time data. Thus, a data transmission can also be carried out during a resting phase of a driver in which the ignition is switched off, wherein the resting phase in the recording is not interrupted by the data transmission. Thus, a correct recording of rest and operating hours of the vehicle is guaranteed regardless of possible data transfers.
  • the data bus BUS is designed, for example, as a serial bus system.
  • a CAN bus, K-line or another common in the automotive field bus system is used for the bus system.
  • the external interface module FM is preferably set up for wireless data transmission.
  • the external interface module FM comprises assemblies for controlling a mobile radio interface in accordance with a mobile radio standard such as GSM, GPRS, UMTS or Like.
  • the data transmission can also take place via other radio standards, such as WLAN or Bluetooth.
  • it is also possible to provide other interface standards for the external interface in particular also line-based transmission methods.
  • FIG. 2 shows another embodiment of a digital tachograph system. Insofar as elements or connections correspond in their function, their description for the FIG. 2 not repeated.
  • an evaluation PC with a data interface WS on a radio basis. Accordingly, the external interface terminal EXT of the data discharge unit RDD is also designed for a radio interface.
  • the evaluation unit PC can thus send a request to the data unloading unit RDD via an interface connection EXT, WS to read out stored data from the tachograph unit TCO and forward it to the evaluation unit PC.
  • the data discharge unit RDD switches on the supply voltage VB applied to the module voltage input to the activation voltage output AOT and thus to the activation voltage input AIN of the tachograph unit TCO. It is assumed that the main switch MSP, MSM is closed.
  • the data processing module MC1 in the tachograph unit TCO detects the presence of the supply voltage VB at the activation voltage input AIN and initiates the data transfer to the data discharge unit RDD. This transmits the received data via the interface connection EXT, WS to the evaluation unit PC.
  • the switching means SM can again be switched to an open state, so that no supply voltage VB is present at the activation voltage input AIN.
  • the operation area of the tachograph unit TCO is de-energized, advantageously a lower energy consumption of the tachograph unit TCO can be effected.
  • Supplying the supply voltage VB to the activation voltage input AIN is thus completely controlled by the data discharge unit RDD and is independent of the presence of the supply voltage VB at the ignition voltage unit ZIN, with which conventional tachograph units are usually supplied. Due to the fact that a data transmission between the data unloading unit RDD and the tachograph unit TCO is not possible when the main switch MSP, MSM is open, the electrical safety of the entire arrangement or of the entire vehicle necessary for this case can be ensured. For example, according to the ADR standard for a tanker truck with such a tachograph system, this results in increased explosion protection, which is due to the fact that, for example, sparking in the data unloading unit RDD is systematically prevented.
  • a tachograph unit TCO or a data unloading unit RDD or a tachograph system according to one of the exemplary embodiments described, it is possible to provide not only the advantageous data transmission capability but also an arrangement with a cost-effective modular design.
  • the switching means SW via which the supply voltage VB is supplied to the activation voltage input AIN, can also be integrated into the data discharge unit RDD, as well as being provided as a separate switching element.
  • the data unloading unit RDD can also be integrated into the tachograph unit TCO.
  • the external solution for the data unloading unit RDD has the advantage that it can also be retrofitted for tachograph units according to the described embodiments.
  • the switches used can each both as two-pole switches, which simultaneously switch a positive and a negative pole of a voltage source to the voltage connection points, and as a unipolar switch, which are arranged in either a positive or a negative supply branch be executed.
  • the fuse elements F1, F2 allow, for example, a current limit in the supply of the tachograph unit TCO, wherein a limit value for the permissible current, for example by safety regulations, is specified.
  • a limit value for the permissible current for example by safety regulations
  • an explosion protection when using the tachograph system can be achieved in a tank or dangerous goods vehicle.

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  • Time Recorders, Dirve Recorders, Access Control (AREA)

Claims (11)

  1. Unité de tachygraphe numérique (TCO), comprenant
    - une entrée de tension permanente (DIN) destinée à délivrer de manière permanente une tension d'alimentation (VB) ;
    - une entrée de tension d'allumage (ZIN) destinée à délivrer la tension d'alimentation (VB) pendant un état de fonctionnement d'allumage ;
    - une entrée de tension d'activation (AIN) qui est prévue en plus de l'entrée de tension permanente et de l'entrée de tension d'allumage, pour délivrer la tension d'alimentation (VB) pendant un état de fonctionnement sur événement ;
    - une unité d'alimentation permanente (VSD) qui est couplée à l'entrée de tension permanente (DIN) et est conçue pour alimenter électriquement une zone d'alimentation permanente de l'unité de tachygraphe (TCO) en fonction d'une tension présente à l'entrée de tension permanente (DIN) ;
    - une unité d'alimentation de service (VSZ) qui est couplée à l'entrée de tension d'allumage (ZIN) et à l'entrée de tension d'activation (AIN) et est conçue pour alimenter électriquement une zone d'alimentation de service de l'unité de tachygraphe (TCO) en fonction d'une tension présente à l'entrée de tension d'allumage (ZIN) et/ou à l'entrée de tension d'activation (AIN) ;
    - un premier module d'interface (SM1) qui est associé à la zone d'alimentation de service, et
    - un premier module de traitement de données (MC1) qui est associé à la zone d'alimentation permanente et est conçu pour exécuter, en fonction de la présence de la tension d'alimentation (VB) à l'entrée de tension d'activation (AIN), une transmission de données par le biais du premier module d'interface (SM1) à une unité de déchargement de données (RDD).
  2. Unité de tachygraphe (TCO) selon la revendication 1, dans laquelle le premier module de traitement de données (MC1) est conçu pour enregistrer et pour traiter des paramètres de fonctionnement d'un véhicule en fonction d'une application de la tension d'alimentation (VB) à l'entrée de tension d'allumage (ZIN).
  3. Unité de tachygraphe (TCO) selon la revendication 1 ou 2, dans lequel le premier module de traitement de données (MC1) est conçu pour enregistrer et pour traiter des données de fonctionnement en fonction d'une absence de la tension d'alimentation (VB) à l'entrée de tension d'allumage (ZIN).
  4. Unité de tachygraphe (TCO) selon la revendication 2 ou 3, comportant en outre un premier module capteur (SE1) qui est couplé au premier module de traitement de données (MC1) et est conçu pour détecter la présence de la tension d'alimentation (VB) à l'entrée de tension d'allumage (ZIN).
  5. Unité de tachygraphe (TCO) selon l'une quelconque des revendications 1 à 4, comportant en outre un deuxième module capteur (SE2) qui est couplé au premier module de traitement de données (MC1) et est conçu pour détecter l'application de la tension d'alimentation (VB) à l'entrée de tension d'activation (AIN).
  6. Unité de tachygraphe (TCO) selon l'une quelconque des revendications 1 à 5, dans laquelle l'unité d'alimentation de service (VSZ) est respectivement couplée à l'entrée de tension d'allumage (ZIN) et à l'entrée de tension d'activation (AIN) par l'intermédiaire d'une diode (D1, D2).
  7. Système de tachygraphe numérique comportant une unité de tachygraphe numérique (TCO) selon l'une quelconque des revendications 1 à 6, une entrée de tension système (V1) pour délivrer en permanence la tension d'alimentation (VB) et une unité de déchargement de données (RDD), l'unité de déchargement de données (RDD) comportant
    - une entrée de tension de module (RIN) qui est couplée à l'entrée de tension système (V1) ;
    - un deuxième module d'interface (SM2) qui est couplé au premier module d'interface (SM1) pour la transmission de données ;
    - un module d'interface externe (FM) ;
    - une sortie de tension d'activation (AOT) qui est couplée à l'entrée de tension d'activation (AIN) ;
    - un moyen de commutation (SW) qui couple l'entrée de tension de module (RIN) à la sortie de tension d'activation (AOT), et
    - un deuxième module de traitement de données (MC2) qui est conçu pour réacheminer des données entre le deuxième module d'interface (SM2) et le module d'interface externe (FM) et pour piloter le moyen de commutation (SW) en fonction d'une demande de transmission de données et pour provoquer le passage dans un état de fonctionnement sur événement.
  8. Système de tachygraphe selon la revendication 7, dans lequel le module d'interface externe (FM) est conçu pour effectuer une transmission de données sans fil.
  9. Système de tachygraphe selon la revendication 7 ou 8, dans lequel le premier module d'interface (SM2) est couplé au deuxième module d'interface (SM1) par l'intermédiaire d'un système de bus série (BUS).
  10. Système de tachygraphe selon l'une quelconque des revendications 7 à 9, dans lequel l'entrée de tension de module (RIN) et l'entrée de tension d'allumage (ZIN) sont couplées à l'entrée de tension système (V1) par l'intermédiaire d'un commutateur principal commun (MSP, MSM).
  11. Système de tachygraphe selon l'une quelconque des revendications 7 à 10, dans lequel l'entrée de tensions d'allumage (ZIN) est couplée à l'entrée de tension système (V1) par l'intermédiaire d'un commutateur d'allumage (IGN) qui est conçu pour provoquer, à l'état fermé, le passage dans un état de fonctionnement d'allumage.
EP09735600.0A 2008-04-24 2009-04-16 Unité de tachygraphe numérique et système de tachygraphie numérique Active EP2272052B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020612A DE102008020612A1 (de) 2008-04-24 2008-04-24 Digitale Fahrtenschreibereinheit, digitales Tachographensystem und Verfahren zum Betreiben eines Tachographensystems
PCT/EP2009/054557 WO2009130163A1 (fr) 2008-04-24 2009-04-16 Unité de tachygraphe numérique, système de tachygraphie numérique et procédé pour utiliser un système de tachygraphie

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WO2009130163A1 (fr) 2009-10-29
RU2490716C2 (ru) 2013-08-20
RU2010147829A (ru) 2012-05-27
EP2272052A1 (fr) 2011-01-12
DE102008020612A1 (de) 2009-10-29

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