EP2073174A2 - Système de transmission de données numérique, système de tachographe numérique et procédé de fonctionnement d'un système de tachographe - Google Patents

Système de transmission de données numérique, système de tachographe numérique et procédé de fonctionnement d'un système de tachographe Download PDF

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Publication number
EP2073174A2
EP2073174A2 EP08105984A EP08105984A EP2073174A2 EP 2073174 A2 EP2073174 A2 EP 2073174A2 EP 08105984 A EP08105984 A EP 08105984A EP 08105984 A EP08105984 A EP 08105984A EP 2073174 A2 EP2073174 A2 EP 2073174A2
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EP
European Patent Office
Prior art keywords
unit
data
tachograph
operating
supply
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.)
Granted
Application number
EP08105984A
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German (de)
English (en)
Other versions
EP2073174A3 (fr
EP2073174B1 (fr
Inventor
Roland Lange
Ulrich MÜNCH
Gerhard Rombach
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.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies 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
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Publication of EP2073174A3 publication Critical patent/EP2073174A3/fr
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Publication of EP2073174B1 publication Critical patent/EP2073174B1/fr
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Classifications

    • 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

Definitions

  • the invention relates to a digital data transmission system adapted for operation with a digital tachograph unit, to a digital tachograph system having such a data transmission system and to a method for operating a tachograph system in a vehicle.
  • 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 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 envisaged that at least a part of the tachograph permanently with an operating voltage, eg. B. a battery voltage of the vehicle is supplied.
  • an operating voltage eg. 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.
  • a digital data transmission system it is configured to operate with a digital tachograph unit having an operational supply input and a data interface for exchanging data stored in the data writer unit.
  • the data transmission system has a first connection for supplying a supply voltage, an operating supply output and a data discharge unit.
  • the operating supply output is adapted to be connected to the operating supply input of the tachograph unit during operation of the data transmission system.
  • the data discharge unit has a supply input coupled to the first port, an internal data interface connectable to the data interface of the tachograph unit, and an external data interface for forwarding data from and / or to the internal data interface.
  • the data unloading unit is set up to control a supply of the operating supply output with a supply voltage derived from the supply voltage applied to the first connection, depending on a request for data transmission between the internal data interface and the data interface of the tachograph unit.
  • the permanently applied supply voltage is not used to supply the components and assemblies required for data transmission with energy, it may be necessary for a necessary operating voltage to be supplied elsewhere. With the ignition of the vehicle off but also supply voltage behind a corresponding ignition switch no voltage for the supply of data transmission available.
  • the proposed data transmission system may provide an operating voltage from the data transmission system to the tachograph unit. As a result, data transmission can take place even when the vehicle is switched off.
  • the latter has a second connection to which the supply voltage can be supplied via an ignition switch device.
  • the supply voltage at the first terminal can be supplied via a switching device for power release.
  • the data discharge unit is set up to control the supply of the operating supply output as a function of a voltage at the second connection.
  • a main switch may be provided in the system, which switches the entire vehicle or the entire system without power in the open state.
  • a power supply of the data discharge unit may be dependent on a switching state of the switching device for power disconnection.
  • a data transmission which is controlled by the data unloading unit can therefore be excluded when the switching device is open. For this reason, it is also not necessary to use the data unloading unit with regard to the ADR standards to be complied with.
  • a data transmission system according to this embodiment is preferable for vehicles subject to ADR regulations.
  • a voltage at the second terminal which is applied depending on a switching state of an ignition switch device, can also be evaluated by the data discharge unit.
  • the data discharge unit controls the voltage at the operating supply output such that in the case of the presence of a supply voltage at the second terminal, the operating voltage is present at the operating supply output and thus also at the operating supply input of the tachograph unit. In a request for data transmission, it is not necessary in this case to deliver the operating voltage separately to the tachograph unit.
  • the data unloading unit is set up to deliver the request for data transmission via the internal data interface to the tachograph unit.
  • information is sent to the tachograph unit via the internal interface, with which the transmission of vehicle operating parameters from the tachograph unit is requested.
  • information can be output to the tachograph unit that operating parameters, data, programs, parameters or commands are to be read from the data unloading unit into the tachograph unit.
  • the data discharge unit has a trigger output which can be coupled to a trigger input of the tachograph unit during operation of the data transmission system.
  • the data unloading unit is set up to issue the request for data transmission via the trigger output to the tachograph unit.
  • the request may contain the same information as described in the previous embodiment.
  • the actual data transmission between the tachograph unit and the data unloading unit takes place in this case again via the internal data interface and the data interface of the tachograph unit.
  • the information transmitted via the trigger output and trigger input can be transmitted via a simple and / or fast interface, so that reaction times until the beginning of a data transmission are advantageously reduced.
  • the data transmission system further comprises a controllable switch, via which the operating voltage can be supplied to the operating supply output as a function of the control by the data discharge unit.
  • the data discharge unit can generate a control signal for the corresponding control, which is supplied to the controllable switch.
  • the controllable switch is coupled on the input side to the first connection and on the output side to the operating supply output.
  • the internal data interface of the data unloading unit and the data interface of the tachograph unit can be designed, for example, as a serial BUS system. Possible embodiments here are, for example, a CAN-BUS, K-Line or other BUS systems commonly used in the vehicle sector.
  • the data that is exchanged by the data unloading unit via the internal data interface can be passed on to an evaluation device via the external data interface, for example.
  • the external data interface can be embodied, for example, as a line-connected interface. These may include, for example, a CAN connection, a Flex-Ray connection, a connection via a PC-BUS system such as USB, Firewire or the like can be used. In addition to the aforementioned galvanic connections, it is also possible to provide optical fiber-based connections for the external data interface.
  • the external data interface may also be provided as a wireless connection, for example as a radio-frequency connection.
  • a transmission via the external data interface can take place, for example, via GSM, GPRS, DECT, WLan, Bluetooth or another radio technology.
  • An embodiment of a digital tachograph system comprises a digital data transmission system according to one of the previously described embodiments. Furthermore, a third terminal for permanently supplying the supply voltage and the digital tachograph unit are provided with a continuous supply input which is coupled to the third terminal, the operating supply input and the data interface. The operating supply output of the data discharge unit is in this case coupled to the operating supply input of the tachograph unit. Furthermore, the internal data interface is also coupled to the data interface of the tachograph unit.
  • a permanent supply of the tachograph unit for example in order to record and record working time data during loading and unloading operations of the vehicle, in this case takes place via the third connection.
  • Data transmission is only possible in the event that the operating voltage is present at the operating supply input or operating supply output. This may for example be dependent on a switch position of a main switch of the vehicle.
  • the tachograph unit comprises, for example, a base supply unit connected to the continuous supply input and an operation unit connected to the service supply input.
  • the operating unit is configured to record and process vehicle operating parameters and to exchange them via the data interface, the operating unit in this case comprising the data interface.
  • the operating unit may be configured to output the vehicle operating parameters via the data interface in dependence on a respective authorization.
  • the authorization can take place via a corresponding code card which is introduced into the tachograph unit.
  • an authorization is performed by entering a password or code word or a PIN. This allows sensitive, possibly personal data to be protected against unauthorized access.
  • the tachograph unit does not give the stored data on a simple request for data transmission from the data unloading unit, but additionally makes the transmission dependent on the authorization.
  • a securing element can be provided between the continuous-supply input and the third connection, which protects the tachograph unit from excessive current consumption.
  • a security element which may also be subject to ADR standards, for example, gas-tight and extra encapsulated designed to ensure additional explosion protection.
  • a permanent supply voltage is provided. Furthermore, will depending on an operating condition of the vehicle provided a switched supply voltage, which is derived from the permanent supply voltage.
  • the permanent supply voltage is supplied to a continuous supply input of a digital tachograph unit.
  • a request for data transmission with the tachograph unit is received and an operating voltage is provided from the switched supply voltage and supplied to an operating supply input of the tachograph unit, in each case as a function of the request.
  • the tachograph unit is being supplied with the operating voltage, the data transmission can be performed with the tachograph unit. With such a method, it is easily possible to enable data transmission with a tachograph unit independently of a permanent power supply.
  • the operating state as a function of which the switched supply voltage is provided, can be, for example, a necessary current release that 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.
  • an ignition voltage is provided from the switched supply voltage as a function of a further operating state of the vehicle.
  • the operating voltage is also provided as a function of the ignition voltage and supplied to the operating supply input of the tachograph unit.
  • the further operating state of the vehicle can be given, for example, by an activated ignition during operation or when driving the vehicle.
  • FIG. 1 A first embodiment of a digital tachograph system with a digital data transmission system
  • FIG. 2 A second embodiment of a digital tachograph system with a digital data transmission system
  • FIG. 3 A third embodiment of a digital tachograph system with a digital data transmission system.
  • FIG. 1 shows an embodiment of a digital tachograph system with a digital data transmission system and a digital tachograph unit TCO.
  • a battery BAT is provided, on which a supply voltage VB can be tapped.
  • a first connection V1 is connected to the battery BAT via a switching device MS for power disconnection.
  • a switching device MS can also be referred to as a main switch.
  • the switching device MS is designed in this embodiment as a two-pole switching device that can disconnect the first terminal V1 from both a positive pole and a negative pole of the battery BAT.
  • the switching device MS can also be designed as a single-pole switch, which separates, for example, only the positive pole of the battery BAT from the first terminal or connects them together.
  • a voltage at the first terminal may also be referred to as a long-term or a long-term rear main switch.
  • a second port V2 is coupled to the first port V1 via an ignition switch device IGN.
  • a third connection V3 is directly connected to the plus or the minus pole the battery BAT and thus can provide the supply voltage VB permanently available.
  • a data unloading unit RDD comprises a control part DCTL, which is connected to a supply input V30 for supplying voltage. The supply input V30 in turn is connected to the first terminal V1.
  • the entladestatt RDD further comprises a two-pole controllable switch SW, which is connected for driving with a control output C1 of the control part DCTL.
  • the switch SW can be coupled on the input side either to the second connection V2 or to the first connection V1. On the output side, the switch SW is connected to an operating supply output O15.
  • the data transmission system in this embodiment includes the terminals V1, V2, V3, the operation power output O15 and the data unloading unit RDD.
  • the tachograph unit TCO comprises an operating supply unit BU which is connected to a permanent supply input I30 connected to the third terminal V3.
  • An operating unit OU is connected to an operating supply input I15 which is coupled to the operating supply output O15.
  • the operating unit OU further has a data interface DINT, which is coupled to an internal data interface INT of the data unloading unit RDD.
  • the control part DCTL of the data unloading unit RDD is connected to both the internal data interface INT and an external data interface EXT. Because of the permanent supply of the base supply unit BU with the supply voltage VB by the battery BAT, the digital tachograph unit TCO can also then maintain a basic operation, when no operating voltage is applied to the operating supply input I15.
  • the switching device MS in a loading or unloading of potentially dangerous goods to the vehicle in which the tachograph system is installed, in an open state, so that except for the base supply unit BU no supply voltage VB is applied. In this case, therefore, the operating unit OU and the complete data unloading unit RDD are de-energized.
  • the switching device MS In the normal driving operation of the vehicle, however, the switching device MS is in a closed state. Furthermore, the ignition switch device IGN is also closed, so that the supply voltage is present both at the first connection V1 and at the second connection V2. Accordingly, both the operating supply output O15 and the operating supply input I15 are supplied with the supply voltage VB, so that the operating unit OU is able to record and process vehicle operating parameters.
  • the control part DCTL in the data unloading unit RDD can receive, for example via the external interface EXT, a request for a data transmission between the internal data interface INT and the data interface DINT of the tachograph unit TCO.
  • this requirement is passed on to the operating unit OU via the data interface DINT, so that a data exchange between the data unloading unit RDD and the tachograph unit TCO is initiated.
  • both data stored in the tachograph unit TCO can be read out and transmitted to the data unloading unit, as well as programs, program parameters or other information can be read from the data unloading unit RDD into the tachograph unit TCO.
  • the data interface DINT and the internal data interface INT can therefore also be referred to as bidirectional data interfaces.
  • these interfaces are provided as a serial BUS system with a common transmission in the automotive industry.
  • the interfaces INT, DINT are designed as a CAN-BUS interface, as a K-line interface or as another synchronous or asynchronous serial BUS system.
  • the data which is read from the tachograph unit TCO or written into it are forwarded in the data unloading unit RDD via the external data interface EXT or received by the latter for forwarding.
  • the external interface can be designed both as a wired as well as a wireless interface.
  • the switching device MS When the vehicle in which the tachograph system is installed is stationary, but no loading or unloading operation is performed, although the ignition switch IGN is in an open state, the switching device MS is in a closed state, so that the supply voltage VB at the first terminal V1 is applied.
  • the data discharge unit RDD is supplied with power via the supply input V30.
  • a control signal can be output via the control output C1 in such a way that the operating supply output O15 is coupled to the first connection V1 via the switch SW.
  • the operating unit OU the tachograph unit TCO despite OFF ignition IGN receive an operating voltage at the operating supply input I15.
  • the operating unit OU is also able to carry out data transmission with the data unloading unit RDD.
  • the switch SW can be activated, for example, by a further control signal of the control part DCTL at the control output C1, that no voltage is present at the operating supply output O15.
  • the operating unit OU is again de-energized in this case and thus consumes no power. This increases the time of availability of the supply voltage VB to the battery BAT.
  • a supply with an operating voltage of the operating unit OU of the tachograph unit TCO is thus completely controlled by the data unloading unit RDD and is at least not completely dependent on the presence of an ignition voltage at the second terminal V2, with the conventional tachograph units are usually supplied. Due to the fact that, when the main switch MS is open, data transmission between the data unloading unit RDD and the tachograph unit TCO is not possible, the electrical safety of the entire arrangement or the entire vehicle necessary for this case can be ensured. For example, thus resulting in a tanker truck with such a tachograph system increased explosion protection, which is given by the fact that, for example, a spark formation in the data unloading unit RDD is systematically prevented.
  • FIG. 2 shows another embodiment of a digital tachograph system.
  • an evaluation unit PC is shown with which the data unloading unit RDD can exchange data.
  • a first terminal V1, a second terminal V2 and a third terminal V3 are provided.
  • a supply voltage VB provided by a voltage source is permanently applied to the third connection V3, which supply voltage is supplied to the continuous supply input I30 of the tachograph unit TCO and to the supply input V30 of the data discharge unit RDD.
  • the first terminal V1 for example, there is a voltage behind a main switch, which also serves as a permanent plus rear main switch can be designated.
  • the first terminal V1 is connected to the operating supply input I15 of the tachograph unit TCO via the switch SW15 whose output represents the operating supply output O15.
  • a control terminal of the switch SW is coupled to the control output C1 of the data discharge unit.
  • the supply voltage is applied to the second connection V2 as a function of an operating state of the vehicle or of a switching state of an ignition switch.
  • the voltage at the second terminal V2 can therefore also be referred to as the ignition voltage.
  • the data discharge unit RDD is coupled to the second terminal V2 in order to be able to evaluate the voltage state at this terminal V2.
  • a common reference potential terminal GND is provided to which both the tachograph unit TCO and the data unloading unit RDD are coupled.
  • the switch SW is disposed outside of the data unloading unit RDD in this embodiment. Alternatively, he can also, as in FIG. 1 shown to be integrated into the data unloading unit RDD.
  • the data unloading unit RDD also has an external data interface EXT, which is designed as a wireless interface. In addition, it can exchange data with a wireless interface WS of the evaluation unit PC.
  • the data discharge unit RDD has a line-connected external data interface EXTA, which is connected via a line connection indicated by dashed lines in the drawing to a corresponding terminal of the evaluation unit PC.
  • the data discharge unit RDD is permanently supplied with the supply voltage VB, so that control functions can be performed at any time.
  • data transmission with the tachograph unit TCO is again possible only in the event that a voltage is present at the first terminal V1, ie. h., when a main switch is closed.
  • the supply input V30 of the data discharge unit RDD could also be connected to the first terminal V1 instead of the third terminal V3, so that a voltage supply of the data discharge unit RDD would only take place when the main switch is closed.
  • FIG. 3 shows a further embodiment of a digital tachograph system, which in its function essentially the in FIG. 1 illustrated embodiment corresponds.
  • the operating unit OU in the tachograph unit TCO in FIG. 3 a trigger input TI on, which with an additional trigger output TA of the data unloading unit RDD is coupled.
  • a fuse element FS is provided between the positive pole of the third terminal V3 and the continuous supply input I30.
  • the fuse element FS allows, for example, a current limit in the supply of the base supply unit BU, wherein a limit value for the permissible current is predetermined for example by security regulations.
  • a limit value for the permissible current is predetermined for example by security regulations.
  • an explosion protection can be achieved when using the tachograph system in a tank or dangerous goods vehicle.
  • this request can be forwarded via the trigger output TA to the trigger input TI.
  • the trigger connection between trigger output TA and trigger input TI is simpler and / or executed with faster access time, so that a data transmission, which takes place via the data interfaces DINT, INT as in the previous embodiments, can take place at a shorter time interval after the request and thus faster is completed.
  • reaction times up to data transmission of a few milliseconds can be achieved by means of the additional trigger connections TI, TA, while reaction times in the range of a few 10 milliseconds are required for transmission of the request via the data interfaces DINT, INT.
  • control part DCTL similarly to the embodiment of FIG. 2 Alternatively, in the control part DCTL also an ignition voltage at the terminal V2 are evaluated to control the switching state of the switch SW.
  • the control part DCTL can be connected to the second connection V2.
  • the voltage at the first terminal V1 is used for the supply of the operating supply output O15 with the supply voltage VB.
  • This design can also be applied to the in FIG. 1 shown arrangement to be transmitted.
  • a switch SW via which the supply voltage is supplied as operating voltage to the tachograph unit, both be integrated into the data unloading unit RDD, as well as be provided as a separate switching element inside or outside the tachograph unit TCO.
  • 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 integrated into existing tachograph systems and this is only connected to a rewiring of the operating supply input I15 of a conventional tachograph unit TCO.
  • switches used such. B. a switching device MS for power disconnection, an ignition switch device IGN and a controllable switch SW can each both as two-pole switches, which simultaneously switch a positive and a negative terminal of a voltage terminal, as well as a single-pole switch, which in either a positive or a negative supply branch are arranged to be executed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Recording Measured Values (AREA)
EP08105984.2A 2007-12-20 2008-12-16 Système de transmission de données numérique, système de tachographe numérique et procédé de fonctionnement d'un système de tachographe Active EP2073174B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007062489A DE102007062489A1 (de) 2007-12-20 2007-12-20 Digitales Datenübertragungssystem, digitales Tachographensystem und Verfahren zum Betreiben eines Tachographensystems

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EP2073174A2 true EP2073174A2 (fr) 2009-06-24
EP2073174A3 EP2073174A3 (fr) 2012-03-28
EP2073174B1 EP2073174B1 (fr) 2017-11-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009130163A1 (fr) * 2008-04-24 2009-10-29 Continental Automotive Gmbh Unité de tachygraphe numérique, système de tachygraphie numérique et procédé pour utiliser un système de tachygraphie
EP4187508A1 (fr) * 2021-11-29 2023-05-31 Continental Automotive Technologies GmbH Procédé de détection de données d'activité du conducteur d'un véhicule à marchandises dangereuses, système de gestion de flotte et unité de détection de données d'activité du conducteur et enregistreur de route pour système de gestion de flotte
AT527775A1 (de) * 2023-12-05 2025-06-15 Prewin Gmbh FADT - Forensic Analysis Digital Tachograph

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Publication number Priority date Publication date Assignee Title
DE102024210943B3 (de) * 2024-11-14 2026-02-19 Continental Automotive Technologies GmbH Betreiben einer Datenausleseeinrichtung für einen Tachographen

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GB2312537A (en) 1996-04-26 1997-10-29 Caterpillar Inc Communicating with a machine when the machine ignition is turned off

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GB2105890B (en) * 1981-07-23 1985-02-20 Probe Eng Co Ltd Taximeters
EP1437690B1 (fr) * 2003-01-10 2011-07-06 Continental Automotive GmbH Clé de téléchargement de données pour un tachygraphe numérique
DE10356152A1 (de) * 2003-12-02 2005-07-07 Siemens Ag Integriertes Erfassungsgerät für Straßenbenutzungsgebühren
DE102004030869A1 (de) * 2004-06-25 2006-01-19 Siemens Ag Datenübertragung in einer Anordnung mit einem Tachographen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312537A (en) 1996-04-26 1997-10-29 Caterpillar Inc Communicating with a machine when the machine ignition is turned off

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009130163A1 (fr) * 2008-04-24 2009-10-29 Continental Automotive Gmbh Unité de tachygraphe numérique, système de tachygraphie numérique et procédé pour utiliser un système de tachygraphie
EP4187508A1 (fr) * 2021-11-29 2023-05-31 Continental Automotive Technologies GmbH Procédé de détection de données d'activité du conducteur d'un véhicule à marchandises dangereuses, système de gestion de flotte et unité de détection de données d'activité du conducteur et enregistreur de route pour système de gestion de flotte
AT527775A1 (de) * 2023-12-05 2025-06-15 Prewin Gmbh FADT - Forensic Analysis Digital Tachograph

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EP2073174A3 (fr) 2012-03-28
DE102007062489A1 (de) 2009-07-02
EP2073174B1 (fr) 2017-11-22

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