EP0892325A1 - Montre-radio pour véhicule automobile - Google Patents

Montre-radio pour véhicule automobile Download PDF

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Publication number
EP0892325A1
EP0892325A1 EP98110744A EP98110744A EP0892325A1 EP 0892325 A1 EP0892325 A1 EP 0892325A1 EP 98110744 A EP98110744 A EP 98110744A EP 98110744 A EP98110744 A EP 98110744A EP 0892325 A1 EP0892325 A1 EP 0892325A1
Authority
EP
European Patent Office
Prior art keywords
time
clock
counter
evaluation unit
unit
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Withdrawn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
EP98110744A
Other languages
German (de)
English (en)
Inventor
Thomas Romanowski
Stefan Kucher
Reiner Becker
Hans-Jürgen Kress
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.)
Valeo Electronics Gmbh and Co KG
Original Assignee
Valeo Electronics Gmbh and Co KG
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 Valeo Electronics Gmbh and Co KG filed Critical Valeo Electronics Gmbh and Co KG
Publication of EP0892325A1 publication Critical patent/EP0892325A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
    • G04R20/12—Decoding time data; Circuits therefor

Definitions

  • the invention relates to a radio clock for motor vehicles, which consists of a receiving and an evaluation unit there, the receiving unit a receiver and a downstream demodulator to recover the Has time codes of the time signal transmitter, and the evaluation unit evaluates the time code and a clock or a Counter controls.
  • Radio clock reception modules in motor vehicles only very limited possible. It plays with today's common concepts the installation location plays a major role. So is for Example to make sure that a conventional Receiver module at a sufficient distance from instruments (e.g. instrument cluster in the dashboard) is mounted to interfere with reception to reduce the long-wave signal.
  • instruments e.g. instrument cluster in the dashboard
  • the object of the invention is therefore a radio clock for To provide motor vehicles, their installation at each anywhere in the motor vehicle is possible and their Reception security with simple and at the same time inexpensive construction is increased.
  • the Evaluation unit the operating state of the motor vehicle or the electromagnetic waves emitting functional units of the motor vehicle monitored and only in the operating states in which the receiving unit and / or the transmission path between Receiver unit and evaluation unit by electromagnetic No interference from the motor vehicle the time of the clock or the Presets, sets or sets the counter reading of the counter triggers.
  • Monitoring the operating status of the Motor vehicle or electromagnetic waves radiating functional units is special easy to implement when the vehicle ignition is monitored. If the vehicle ignition is off, then this is a sign that all active components usually no more electromagnetic waves send out.
  • Monitoring can also be carried out in such a way that the relevant ones, that is, in the immediate vicinity or in the sphere of influence of the radio clock receiver emitting electromagnetic waves functional units are monitored to determine whether for example, they are switched off or in sleep mode.
  • the respective functional units can be used here Provide signals from the evaluation unit of the Radio clock can be processed.
  • the evaluation unit only gives the time of the clock or the counter reading of the counter after a predeterminable time interval has elapsed after the ignition, the relevant functional units or their components or components emitting electromagnetic waves and / or after the transition into the Sleep mode "of the functional units anew or sets them anew or triggers them.
  • the main advantage of the solution according to the invention is that by controlling the time of reception, the installation location of the receiver unit can be optimized almost independently of internal sources of interference.
  • the task is also inventively solved in that the evaluation unit the incoming Time code of the demodulator continuously evaluates and the correctness of the time code based on the time of day Clock or the counter reading of the counter or the previous one evaluated time codes statistically checked and only if the last evaluated time code is free of errors the time of the clock or the counter reading of the Newly specifies, sets or triggers the counter.
  • the hardware Effort kept as low as possible and the installation location the receiving unit in the motor vehicle chosen arbitrarily can be because there are very few components in the motor vehicle which are continuously electromagnetic Blast waves.
  • the radio clock according to the invention can then each in the time slots in which there are no faults occur, update the time or the counter reading.
  • the transmission from the evaluation unit to e.g. the On-board computer can be advantageous by means of an interference-insensitive parallel or serial interface done, which also enables the module to be arranged anywhere in the motor vehicle, the coded Time signal in the data and / or control bus of the motor vehicle can be fed.
  • the radio clock according to the invention can by the intelligent Monitoring the motor vehicle or its components or the reception quality of the radio clock signal too directly on the board of the on-board computer or Instrument cluster or be integrated into this. In This can be done by eliminating the additional Housing further cost savings can be achieved.
  • Figure 1 shows the conventional structure of a radio clock.
  • the radio clock usually has a display unit 3 that by reading out and coding the time accordingly the free running clock from the evaluation unit 2 directly is controlled.
  • interference occurs in the receiving unit 1 through the instrument cluster 4, so that too receiving time signal or the transmitting signal from falsified the receiving unit 1 to the instrument cluster 4 can be and therefore not the right one for the decoder Time or an unusable signal is transmitted.
  • Figure 3 shows a radio clock in which the receiving unit 1 and the evaluation unit 2 into one intelligent receiver module 5 can be summarized, which is separated from an instrument cluster 6 with display can be arranged in a unit in the vehicle and via a suitable interface 7 the time information transmitted.
  • Figure 4 shows a circuit for a radio clock, at which represents a microcontroller 9 the evaluation unit and the function of decoding and free running Clock and the coding of the time signal takes over.
  • the Microcontroller receives the demodulated from the receiver Time signal from the time signal transmitter. This constantly from The demodulated time code sent by the receiver is sent by the Microcontroller constantly received and decoded.
  • the decoded time code is generated using appropriate Software algorithms checked for plausibility. Becomes a If the sensible result is recognized, the time of day is released running clock according to the one just received decoded time codes updated.
  • the evaluation can use statistical methods which not explained here.
  • the microcontroller also has an interface, which via line driver 10 the time signal on a data signal line 10a Electrical system or only certain, not shown, Provides components of the motor vehicle.
  • the Figure 4 thus shows an embodiment in which none active monitoring of the vehicle or its functional Units is required.
  • 5 and 6 show an embodiment, in which the ignition of the via an external line 11 Motor vehicle is monitored by the microcontroller. Of the The microcontroller then only decodes that from the receiver received, demodulated time code or updated the free running clock only when the ignition of the Vehicle is off. However, it is also possible through the internal clock of the microcontroller a time interval Determine which one is awaited by the microcontroller must be before the after switching off the ignition from Evaluate the transmitted, demodulated time code and update the free running clock.
  • the microcontroller sets the time the free running clock on request or continuously or also at certain time intervals via the time signal lines 13, the car or its individual functional Units available.
  • an LCD driver in the microcontroller is integrated, which is directly a display unit 14 controls.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
EP98110744A 1997-07-17 1998-06-12 Montre-radio pour véhicule automobile Withdrawn EP0892325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19730553A DE19730553A1 (de) 1997-07-17 1997-07-17 Funkuhr für Kraftfahrzeuge
DE19730553 1997-07-17

Publications (1)

Publication Number Publication Date
EP0892325A1 true EP0892325A1 (fr) 1999-01-20

Family

ID=7835935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110744A Withdrawn EP0892325A1 (fr) 1997-07-17 1998-06-12 Montre-radio pour véhicule automobile

Country Status (2)

Country Link
EP (1) EP0892325A1 (fr)
DE (1) DE19730553A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2070343A4 (fr) * 2006-08-18 2010-08-25 Delphi Tech Inc Système audio léger pour applications dans l'industrie automobile et procédé
DE102016002295B4 (de) 2016-02-25 2023-11-30 Audi Ag Verfahren zum Einstellen einer Fahrzeuguhr eines Fahrzeugs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305200A2 (fr) * 1987-08-27 1989-03-01 Precision Standard Time, Inc. Horloge numérique commandé par signaux radio-électriques
DE4012975A1 (de) * 1990-04-24 1991-10-31 Vdo Schindling Einrichtung zum empfang von zeitzeichensignalen eines zeitzeichensenders
JPH04192812A (ja) * 1990-11-27 1992-07-13 Suzuki Motor Corp 乗物用受信機
US5301368A (en) * 1989-10-27 1994-04-05 Nissan Motor Company, Ltd. System for controlling operations of GPS receiver unit and radio telephone unit for automotive vehicle
EP0590337A1 (fr) * 1992-10-02 1994-04-06 TEMIC TELEFUNKEN microelectronic GmbH Procédé pour le fonctionnement d'une montre réceptrice et montre réceptrice apte à être utilisé dans un environnement à champs perturbé

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715096C2 (de) * 1977-04-04 1982-12-16 Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg Anordnung zur Gewinnung und Anzeige einer Zeitinformation, bestehend aus einer Funkuhr und einer mit dieser räumlich zusammengefaßten Quarzuhr
DE2923121A1 (de) * 1979-06-07 1980-12-18 Siemens Ag Verfahren und schaltungsanordnung zur vornahme einer plausibilitaetspruefung bezueglich aufeinanderfolgend auftretender zeitinformationen in verkehrssignalanlagen
DE9311917U1 (de) * 1993-08-10 1993-12-16 Quenzer, Herbert, 97980 Bad Mergentheim Funkuhr für den seriellen Einbau in Automobile
DE4416869A1 (de) * 1994-05-13 1995-11-16 Opel Adam Ag Steuereinrichtung für eine durch Funksignale zu synchronisierende Uhr
DE9411772U1 (de) * 1994-07-19 1994-10-20 Haupt, Rolf Wilhelm, 97337 Dettelbach Kfz-Uhr
DE19514030C2 (de) * 1995-04-13 1998-09-17 Telefunken Microelectron Verfahren zum Erkennen der Zeittelegramme im gestörten Signal eines Zeitzeichensenders

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305200A2 (fr) * 1987-08-27 1989-03-01 Precision Standard Time, Inc. Horloge numérique commandé par signaux radio-électriques
US5301368A (en) * 1989-10-27 1994-04-05 Nissan Motor Company, Ltd. System for controlling operations of GPS receiver unit and radio telephone unit for automotive vehicle
DE4012975A1 (de) * 1990-04-24 1991-10-31 Vdo Schindling Einrichtung zum empfang von zeitzeichensignalen eines zeitzeichensenders
JPH04192812A (ja) * 1990-11-27 1992-07-13 Suzuki Motor Corp 乗物用受信機
EP0590337A1 (fr) * 1992-10-02 1994-04-06 TEMIC TELEFUNKEN microelectronic GmbH Procédé pour le fonctionnement d'une montre réceptrice et montre réceptrice apte à être utilisé dans un environnement à champs perturbé

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 517 (E - 1284) 23 October 1992 (1992-10-23) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2070343A4 (fr) * 2006-08-18 2010-08-25 Delphi Tech Inc Système audio léger pour applications dans l'industrie automobile et procédé
DE102016002295B4 (de) 2016-02-25 2023-11-30 Audi Ag Verfahren zum Einstellen einer Fahrzeuguhr eines Fahrzeugs

Also Published As

Publication number Publication date
DE19730553A1 (de) 1999-01-21

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