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WO2004062948A1 - Dispositif de controle de la pression des pneus d'un vehicule automobile - Google Patents

Dispositif de controle de la pression des pneus d'un vehicule automobile Download PDF

Info

Publication number
WO2004062948A1
WO2004062948A1 PCT/EP2004/000097 EP2004000097W WO2004062948A1 WO 2004062948 A1 WO2004062948 A1 WO 2004062948A1 EP 2004000097 W EP2004000097 W EP 2004000097W WO 2004062948 A1 WO2004062948 A1 WO 2004062948A1
Authority
WO
WIPO (PCT)
Prior art keywords
control device
air pressure
transmitter
tire air
pressure control
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.)
Ceased
Application number
PCT/EP2004/000097
Other languages
German (de)
English (en)
Inventor
Volker Pretzlaff
Rainer Vens
Michael Fromm
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.)
Leopold Kostal GmbH and Co KG
Original Assignee
Leopold Kostal 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 Leopold Kostal GmbH and Co KG filed Critical Leopold Kostal GmbH and Co KG
Publication of WO2004062948A1 publication Critical patent/WO2004062948A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0447—Wheel or tyre mounted circuits
    • B60C23/045—Means for detecting electromagnetic field changes being not part of the signal transmission per se, e.g. strength, direction, propagation or masking
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle

Definitions

  • the invention relates to a tire air pressure control device for a motor vehicle with a plurality of wheels each equipped with a pneumatic tire, comprising at least one control unit provided with an HF transceiver and to each pneumatic tire monitored, coupled to a pressure measurement module and for bidirectional communication with the central control unit provided RF transmitters / receivers.
  • Tire pressure monitoring systems of this type are used increasingly in motor vehicles, also required by law.
  • Various types of systems are used in today's vehicles: In some cases, the sensors in the individual wheels are specifically woken up by inductive fields. Each wheel is assigned an inductive transmitter, which is usually located in or near the wheel arch and controls the NF receiver of the corresponding wheel. The actual pressure value is then transmitted by means of a high-frequency carrier. This HF signal is then either received via individual HF receivers assigned to the respective wheels and, for example, present in the wheel arches, or they are received by means of at least one HF receiver arranged in the vehicle for further processing in a control unit. For cost reasons, other systems do not specifically control a wheel using a low-frequency, inductive signal for the purpose of transmitting the pressure value.
  • Today's driving and access authorization control systems consist of different function blocks; a bidirectional data exchange usually takes place between the vehicle and an ID transmitter, which is carried out with the aid of low-frequency and / or high-frequency signals.
  • an ID transmitter In the case of higher-value systems, it is customary to equip the vehicle with several low-frequency inductive transmission coils.
  • the NF signal which in turn is received by an ID transmitter, is sent out via these coils, which are attached at certain positions in the vehicle.
  • This position determination in the ID transmitter can then in turn be communicated to the vehicle, whereby certain functions are controlled. For example, the determination of whether the ID transmitter is located inside or outside the vehicle can be used to decide whether or not to give the engine a start.
  • the Opening a certain door depending on the position of the ID transmitter relative to the vehicle (right or left).
  • the tire air pressure control device has the advantage over the prior art of enabling a position of a particular wheel to be determined at any time, so that even after the wheels have been mixed up, it is always ensured that the correct assignment of the air pressure value to the respective one Wheel position is given.
  • the device also makes it possible to determine the position of further components provided with HF transceivers, such as a portable ID transmitter, of a keyless entry or driving authorization control device.
  • the HF transmission / reception devices are additionally provided with means which enable the distance between two HF transmission / reception devices to be determined.
  • Another advantage of the device according to the invention over the prior art is, moreover, improved protection against manipulation attempts from the outside, for example a driver by one of Incorrect indication of a loss of tire pressure caused by theft is intended to be stopped outside the vehicle.
  • the distance measurement takes place in the device according to the invention e.g. by determining a signal transit time.
  • the signal transit time can be determined, for example, by a method that includes a comparison of the modulation variables of a modulated carrier wave, as described in DE 198 39 896 C2, to which reference is hereby expressly made.
  • the central control unit Z1 and optional further control units Z2, ... are located, like the four wheels VL, VR, HL, HR, in known positions in a Cartesian coordinate system with respect to the vehicle 1, the origin (0,0,0) of which one eg can determine at the location of the control unit Z1, the wheel positions should be designated as (x1, y1, z1), (x2, y2, z2), (x3, y3, z3) and (x4, y4, z4).
  • To determine which wheel is at which position it can be addressed by radio and its distance from at least one of the control units can be determined. Since the distances of the wheel positions from the control units are different, the assignment sought must be determined.
  • a transceiver with at least 2 antennas can also be used in diversity mode instead become.
  • an ID transmitter 2 belonging to a keyless access authorization system it is necessary to have at least three known positions (so-called fixed points) from a distance measurement to an unknown point (x, y, z) in order to be able to clearly determine its absolute position.
  • fixed points position of the four wheels and the at least one central control device Z1
  • five fixed points are already available, so that a location can be determined by means of distance measurements.
  • the trigonometric relationships between the individual points and the measured distances are used, or vector relationships (see also the principle of operation of the GPS system).
  • the unknown position is determined by an equation system using the determined distances and the known positions of the at least three fixed points, each further measurement of a further known point naturally improving the accuracy.
  • the measurement becomes more precise the further the relative distance between the individual known fixed points is compared to the distance to the unknown point, since it is helpful here to achieve the greatest possible angle difference between the individual measurements.
  • ⁇ 3 ⁇ J ( X - ⁇ X 3) 2 + (v - - V 3) 2 + (z - - Z 3) 2
  • LA ⁇ j (x - 14) 2 + (y - V 4) 2 + (z - Z 4)
  • the central control unit Z1 can include both the functionalities of the tire air pressure control device and that of the keyless access authorization control device.
  • An application of the position determination of the ID transmitter can of course also be to differentiate the position between the interior and exterior of the vehicle.
  • a user / carrier of the ID transmitter approaches, its direction can be recognized by the vehicle and, depending on this direction, only the correspondingly selected door can be opened, e.g. the driver's door or the trunk. Any other controls depending on the position of the ID transmitter, or the direction of approach or removal of the ID transmitter from the vehicle, are thus conceivable.
  • the possibility of determining the position of the wheels with respect to the vehicle also opens up applications in the context of an anti-theft alarm system by manipulating the wheels, e.g. the unauthorized removal of the same from the vehicle can be registered and used for a corresponding display or for triggering an alarm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un dispositif de commande de la pression des pneus d'un véhicule automobile équipé de plusieurs roues respectivement dotées d'un pneumatique. Ce dispositif comprend au moins un appareil de commande pourvu d'un dispositif émetteur/récepteur HF et des dispositifs émetteurs/récepteurs HF associés à chaque pneumatique surveillé, couplés à un module de mesure de pression et destinés à la communication bidirectionnelle avec l'appareil central de commande. Par rapport à l'état de la technique, ce dispositif permet avantageusement de déterminer la position, à un moment quelconque, des roues du véhicule tout comme d'autres composants équipés des dispositifs émetteurs/récepteur HF comme, par exemple, ceux d'un transmetteur ID portatif d'un dispositif de contrôle d'accès ou d'autorisation de conduite sans clé. A cet effet, les dispositifs émetteurs/récepteurs HF sont dotés en plus de moyens qui permettent la détermination de la distance entre deux dispositifs émetteurs/récepteurs HF.
PCT/EP2004/000097 2003-01-11 2004-01-09 Dispositif de controle de la pression des pneus d'un vehicule automobile Ceased WO2004062948A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003100778 DE10300778A1 (de) 2003-01-11 2003-01-11 Reifenluftdruck-Kontrolleinrichtung für ein Kraftfahrzeug
DE10300778.4 2003-01-11

Publications (1)

Publication Number Publication Date
WO2004062948A1 true WO2004062948A1 (fr) 2004-07-29

Family

ID=32519841

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/000097 Ceased WO2004062948A1 (fr) 2003-01-11 2004-01-09 Dispositif de controle de la pression des pneus d'un vehicule automobile

Country Status (2)

Country Link
DE (1) DE10300778A1 (fr)
WO (1) WO2004062948A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017206361A1 (de) * 2017-04-13 2018-10-18 Continental Automotive Gmbh Zugangssystem und Zugangssteuerungsverfahren für ein Fahrzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014076A1 (de) * 2000-03-22 2001-10-04 Nolex Ag St Moritz Reifenluftdruck-Anzeigevorrichtung
WO2002039137A2 (fr) * 2000-11-10 2002-05-16 Societe De Technologie Michelin Systeme de surveillance des pneumatiques d'un vehicule comportant un dispositif de localisation automatique d'emetteurs de roues

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL319943A1 (en) * 1995-09-01 1997-09-01 Fast Air Sl Method of and system for measuring and correcting inflated tyre pressure
DE19720123C2 (de) * 1997-01-17 2001-03-01 Beru Ag Verfahren und Einrichtung zum Übertragen von Fernwirkbefehlen und von Meßdaten an einen oder mehrere Aktuatoren bzw. Überwachungsgeräte in einem Automobil
DE10012113A1 (de) * 2000-03-13 2001-10-04 Siemens Ag Verfahren und Vorrichtung zur Datenübertragung und/oder Abstandsmessung zwischen einer Basiseinheit und einer mobilen Schlüsseleinheit eines Zugangsberechtigungskontrollsystems, insbesondere für Kraftfahrzeuge
DE10032936A1 (de) * 2000-07-06 2002-02-07 Siemens Ag Vorrichtung und Verfahren zum Steuern einer Zugangsberechtigung und/oder einer elektronischen Wegfahrsperre für ein Kraftfahrzeug
US6597284B2 (en) * 2000-11-29 2003-07-22 Trw Inc. Vehicle communication for tire sensor initiation and vehicle keyless entry via a shared resource
US6420967B1 (en) * 2001-01-31 2002-07-16 Lear Corporation System and method for shared vehicle tire pressure monitoring, remote keyless entry, and vehicle immobilization

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014076A1 (de) * 2000-03-22 2001-10-04 Nolex Ag St Moritz Reifenluftdruck-Anzeigevorrichtung
WO2002039137A2 (fr) * 2000-11-10 2002-05-16 Societe De Technologie Michelin Systeme de surveillance des pneumatiques d'un vehicule comportant un dispositif de localisation automatique d'emetteurs de roues

Also Published As

Publication number Publication date
DE10300778A1 (de) 2004-07-22

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