[go: up one dir, main page]

WO2004000578A2 - Dispositif pour determiner l'acceleration d'une roue de vehicule - Google Patents

Dispositif pour determiner l'acceleration d'une roue de vehicule Download PDF

Info

Publication number
WO2004000578A2
WO2004000578A2 PCT/EP2003/004637 EP0304637W WO2004000578A2 WO 2004000578 A2 WO2004000578 A2 WO 2004000578A2 EP 0304637 W EP0304637 W EP 0304637W WO 2004000578 A2 WO2004000578 A2 WO 2004000578A2
Authority
WO
WIPO (PCT)
Prior art keywords
component
saw
acceleration
wheel
surface wave
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/EP2003/004637
Other languages
German (de)
English (en)
Other versions
WO2004000578A3 (fr
Inventor
Christian Mayer
Andreas Schwarzhaupt
Gernot Spiegelberg
Armin Sulzmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to EP03729969A priority Critical patent/EP1530520A2/fr
Publication of WO2004000578A2 publication Critical patent/WO2004000578A2/fr
Anticipated expiration legal-status Critical
Publication of WO2004000578A3 publication Critical patent/WO2004000578A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/0888—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values for indicating angular acceleration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/097—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by vibratory elements
    • G01P15/0975—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by vibratory elements by acoustic surface wave resonators or delay lines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed

Definitions

  • the invention relates to a device for determining the acceleration of a vehicle wheel with an acceleration information arranged in the vehicle wheel as a radio signal that transmits a radio sensor to a receiver.
  • the speed measurement is usually carried out by considering and evaluating the frequency of rotation of one or more vehicle wheels.
  • the average length of the vehicle wheels is used to determine the distance covered per unit of time.
  • a device for detecting speeds of a rotor with a speed sensor which transmits its speed information wirelessly to an electrical control device.
  • inductive speed signals are generated, the time intervals of which are proportional to the wheel speed.
  • the speed sensor has a passive radio sensor, the radio signals of which inductively generated radio signals are sent at time intervals proportional to the wheel speed to a receiver of the control device, the radio signals having codes assigned to the respective wheels.
  • the radio sensor has a delay line designed as a surface wave (SAW) component.
  • SAW surface wave
  • SAW component fed pulses are converted by an interdigital transducer into mechanical waves propagating on the surface of a piezoelectric crystal of the component.
  • partially reflecting electrode structures are introduced as reflectors in a characteristic sequence in accordance with the coding to be transmitted. These partially reflecting structures form several pulses from the single excitation pulse, which are reflected back to the interdigital transducer. There they are converted into electromagnetic waves and emitted as a radio signal.
  • the invention is based on the object of providing a device for determining the acceleration of a vehicle wheel, wherein a complex sensor system for determining the wheel speed and the acceleration of the vehicle wheel to be calculated therefrom should be dispensed with.
  • the object is achieved by a device for determining the acceleration of a vehicle wheel with an acceleration information arranged in the vehicle wheel as a radio signal, which transmits a radio signal to a receiver, which has a surface wave (SAW) component with at least one mass m attached to it in such a way that vehicle acceleration a change in length of the Surface wave (SAW) component causes, which can be detected as a change in transit time of mechanical waves, the change in transit time is passed on to the receiver as acceleration information.
  • SAW surface wave
  • the force F acting on the mass m during vehicle acceleration causes a change in the length of the surface wave (SAW) component in the direction or opposite direction of the attached mass m. Depending on the direction of the change in length, this involves an expansion or compression (compression) of the surface wave (SAW) component.
  • SAW surface wave
  • the radio sensor designed as a surface wave sensor functions in such a way that an expansion or compression of the surface wave (SAW) component also stretches or compresses a signal that is sent and reflected by the component in proportion to the change in length of the component.
  • Elongation and compression of the signal is understood here to mean the change in transit time of a mechanical shaft due to the change in the path length which the mechanical shaft has to travel.
  • the measured changes in the running time of the mechanical waves in the surface waves (SAW) component which are proportional to the change in length of the component, can therefore be used to calculate the force F acting on the mass m during vehicle acceleration and thus the acceleration of the vehicle wheel.
  • SAW surface waves
  • the acceleration signal of the individual vehicle wheel can be used by the ABS system to easily determine the vehicle wheel acceleration, the vehicle wheel speed and the vehicle wheel position.
  • the elaborate ABS sensor system which determines the wheel speed and uses it to calculate an acceleration value, can be omitted.
  • the mass m and the surface wave (SAW) component are preferably arranged one after the other in the circumferential direction of the vehicle wheel. There are two versions.
  • the mass m can be arranged in the direction of rotation of the vehicle wheel before or after the surface acoustic wave (SAW) component.
  • the mass m and the surface wave (SAW) component can be arranged one after the other in the radial direction to the wheel axis.
  • the mass m can be arranged in the radial direction both before and after the surface acoustic wave (SAW) component.
  • the centrifugal force ensures the change in length of the surface wave (SAW) component during the acceleration phase and can be used to calculate the radial acceleration of the vehicle wheel.
  • FIG. 1 and 2 each show a device for determining the acceleration of a vehicle wheel with a vehicle wheel and a radio sensor arranged in it in a schematic representation and different arrangement.
  • the device illustrated in FIG. 1 for determining the acceleration of a vehicle wheel 2 comprises a radio sensor 6 arranged in the vehicle wheel 2 and containing a surface wave (SAW) component 4.
  • a mass m 8 is on the surface wave (SAW) component 4 of the radio sensor 6 attached that surface waves (SAW) component 4 and mass m 8 are arranged in the tangential direction or circumferential direction to the vehicle wheel 2.
  • SAW surface wave
  • the mass m 8 is arranged in the direction of rotation 10 in front of the surface component (SAW) 4.
  • the order regarding the direction of rotation 10 is not important.
  • a change in length of the surface wave (SAW) component 4 is caused.
  • compression of the surface waves (SAW) component 4 is achieved due to the inertia of the mass m 8.
  • the compression that is the corresponding change in length, is a measure of the force acting on the mass 8 during the acceleration of the vehicle and is passed on as acceleration information to a receiver of a control device, not shown, which is arranged centrally in the vehicle and is not shown.
  • the mechanical waves generated in the surface wave (SAW) component 4 by an interdigital transducer become partially reflecting in the beam path of these mechanical surface waves in a characteristic sequence
  • the electrode structures 12 can be designed, for example, as metal strips. Also a use of the surface wave (SAW) component 4 without electrode structures is possible because the surface waves are also reflected on the end faces of the surface wave (SAW) component 4.
  • a stretching or compression of the surface wave (SAW) component 4 which corresponds to an acceleration of the vehicle in different directions, has the effect that the mechanical signals which are sent and reflected by the surface wave (SAW) component 4 in relation to the length of time of the acceleration process are proportional to the change in length of the surface wave (SAW) component 4 also stretched or compressed.
  • SAW surface wave
  • the force F which acts on the mass m during the vehicle acceleration and thus the acceleration of the vehicle wheel can thus be calculated via the measured changes in the running time of the mechanical waves in the surface wave (SAW) component 4.
  • SAW surface wave
  • the mass m 8 is chosen so large that there is a change in the length of the surface wave (SAW) component 4 in the acceleration range to be expected for the motor vehicle, which enables a simple evaluation of the travel time differences of the mechanical waves.
  • SAW surface wave
  • the device for determining the acceleration of a vehicle wheel 2 according to FIG. 2 has a radio sensor 4 with the technical features corresponding to the statements relating to FIG. 1.
  • the mass m 8 and the surface wave (SAW) component 4 are arranged one after the other in the radial direction to the wheel axis 14. It is possible that the mass m 8 is attached to the surface wave (SAW) component 4 on the side facing the wheel axis 14 and on the side facing away from the wheel axis 14.
  • the centrifugal force ensures the change in length of the surface wave (SAW) component 4 during the acceleration phase and can be used to calculate the radial acceleration of the vehicle wheel 2.
  • the radio sensor 6 can be integrated in the tire or in the rim of the vehicle wheel 2. This applies to all versions of the radio sensor 6.
  • the change in length of the surface wave (SAW) component can be measured in two directions that are orthogonal to one another. Due to the orthogonal material structure of the surface wave (SAW) component 4, surface waves can run perpendicular to one another through the surface wave (SAW) component 4 without influencing one another. This enables at least two measurement variables, such as wheel speed, tire pressure or acceleration, to be measured simultaneously.
  • the wheel acceleration can be determined redundantly.

Landscapes

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

Abstract

L'invention concerne un dispositif servant à déterminer l'accélération d'une roue de véhicule (2), qui comprend un capteur radio (6) qui est placé dans la roue de véhicule (2) et transmet ces informations relatives à l'accélération sous forme de signal radio à un récepteur. Ledit capteur radio (6) comporte un composant à ondes de surface (4) pourvu d'au moins une masse m (8), qui lui est fixée de telle sorte qu'une accélération du véhicule provoque une modification de longueur dudit composant à ondes de surface (4) qui peut être détectée comme une modification du temps de propagation d'ondes mécaniques, cette modification pouvant être transmise au récepteur en tant qu'information relative à l'accélération. Grâce à un tel dispositif, on n'a pas à utiliser un système de capteurs coûteux pour la détermination de la vitesse de rotation d'une roue.
PCT/EP2003/004637 2002-06-21 2003-05-02 Dispositif pour determiner l'acceleration d'une roue de vehicule Ceased WO2004000578A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03729969A EP1530520A2 (fr) 2002-06-21 2003-05-02 Dispositif pour determiner l'acceleration d'une roue de vehicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002127768 DE10227768A1 (de) 2002-06-21 2002-06-21 Vorrichtung zur Ermittlung der Beschleunigung eines Fahrzeugrades
DE10227768.0 2002-06-21

Publications (2)

Publication Number Publication Date
WO2004000578A2 true WO2004000578A2 (fr) 2003-12-31
WO2004000578A3 WO2004000578A3 (fr) 2005-03-24

Family

ID=29723353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/004637 Ceased WO2004000578A2 (fr) 2002-06-21 2003-05-02 Dispositif pour determiner l'acceleration d'une roue de vehicule

Country Status (3)

Country Link
EP (1) EP1530520A2 (fr)
DE (1) DE10227768A1 (fr)
WO (1) WO2004000578A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006138640A1 (fr) * 2005-06-16 2006-12-28 Honeywell International Inc. Accelerometre a ondes acoustiques passif et sans fil
EP3299765A1 (fr) * 2016-09-26 2018-03-28 NXP USA, Inc. Étalonnage des données de navigation inertielle à l'aide des signaux d'un système de surveillance de la pression des pneus
WO2018134117A1 (fr) * 2017-01-21 2018-07-26 Wabco Europe Bvba Procédé pour ralentir un véhicule tracté, module de roue pour mettre en œuvre le procédé ainsi qu'ensemble de véhicules comprenant un tel module de roue

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017406A1 (de) 2008-04-05 2008-11-27 Daimler Ag Vorrichtung zur Erfassung von Werten einer Feldgröße
DE102008060191B4 (de) * 2008-11-28 2012-09-20 Imc Messsysteme Gmbh Messeinrichtung zum Erfassen von Drehbewegungen einer Welle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467235A (en) * 1982-03-12 1984-08-21 Rockwell International Corporation Surface acoustic wave interferometer
DE19807004A1 (de) * 1998-02-19 1999-09-09 Siemens Ag Sensorsystem und Verfahren für Überwachung/Messung des Kraftschlusses eines Fahrzeugreifens mit der Fahrbahn und weiterer physikalischer Daten des Reifens
DE10001272C2 (de) * 2000-01-14 2003-08-21 Markus Fach Einrichtung und Verfahren zur Ermittlung von Kräften im Reifen eines Fahrzeugrades
DE10010846A1 (de) * 2000-03-06 2001-09-20 Siemens Ag Erzeugnis mit einem Sensor und einem Oberflächenwellenelement sowie Verfahren und Anordnung zum Bestimmen einer einem reaktiven Widerstand entsprechenden Meßgröße von einem Sensor
WO2002020287A1 (fr) * 2000-09-08 2002-03-14 Automotive Technologies International, Inc. Systeme de detection et de communication sans fil pour vehicule
GB0030405D0 (en) * 2000-12-13 2001-01-24 Transense Technologies Plc Wheel condition monitoring system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006138640A1 (fr) * 2005-06-16 2006-12-28 Honeywell International Inc. Accelerometre a ondes acoustiques passif et sans fil
US7243544B2 (en) 2005-06-16 2007-07-17 Honeywell International Inc. Passive and wireless acoustic wave accelerometer
EP3299765A1 (fr) * 2016-09-26 2018-03-28 NXP USA, Inc. Étalonnage des données de navigation inertielle à l'aide des signaux d'un système de surveillance de la pression des pneus
US10077982B2 (en) 2016-09-26 2018-09-18 Nxp Usa, Inc. Calibrating inertial navigation data using tire pressure monitoring system signals
WO2018134117A1 (fr) * 2017-01-21 2018-07-26 Wabco Europe Bvba Procédé pour ralentir un véhicule tracté, module de roue pour mettre en œuvre le procédé ainsi qu'ensemble de véhicules comprenant un tel module de roue
US11458941B2 (en) 2017-01-21 2022-10-04 Zf Cv Systems Europe Bv Method for decelerating a trailer vehicle, wheel module for performing the method and vehicle combination having a wheel module of this type

Also Published As

Publication number Publication date
WO2004000578A3 (fr) 2005-03-24
EP1530520A2 (fr) 2005-05-18
DE10227768A1 (de) 2004-01-15

Similar Documents

Publication Publication Date Title
DE19908701B4 (de) Verfahren und Vorrichtung zur Ermittlung des Notlaufzustandes eines Luftreifens
EP2435262B1 (fr) Électronique de roue, roue et voiture
DE102010021960B4 (de) Verrfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors eines Kraftfahrzeugs, Fahrerassistenzeinrichtung und Kraftfahrzeug
EP1764589B1 (fr) Procédé pour le contrôle d'un débitmètre massique à effet Coriolis
DE102013218571A1 (de) Vorrichtung und Verfahren zur seitlichen Umfelderfassung eines Kraftfahrzeugs
DE102009041823A1 (de) Verfahren und Vorrichtung zur Überwachung des Fahrverhaltens eines Schienenfahrzeugs
DE19537257A1 (de) Verfahren zur Ermittlung des physikalischen Profils einer Fahrbahnoberfläche
DE10329700B4 (de) Verfahren und Vorrichtung zur Ermittlung des Reifenfülldrucks und der Radlast eines Fahrzeugreifens
DE19735313B4 (de) Verfahren zur Ermittlung von geschwindigkeitsunabhängigen Frequenzen eines Nutzsignalanteils
DE102016224928A1 (de) Verfahren zum Betrieb eines Ultraschallsensors
DE3809299C2 (fr)
EP1530520A2 (fr) Dispositif pour determiner l'acceleration d'une roue de vehicule
DE69503639T2 (de) Verfahren und vorrichtung zum geschwindigkeitsmessung von fahrzeugen
EP1304576A2 (fr) Procédé de surveillance de l'état d'une roue d'un véhicule automobile
EP0522520A1 (fr) Appareil pour mesure de distances pour véhicules
EP3257719B1 (fr) Procédé de détection de déraillement d'un véhicule sur rails
EP3410081B1 (fr) Détermination de la valeur efficace d'une mesurande de vibration d'une machine
EP1936403B1 (fr) Capteur à ultrasons et procédé destiné à la détermination de la distance entre un objet et un capteur à ultrasons
EP3812713B1 (fr) Dispositif de mesure et procédé de fonctionnement d'un dispositif de mesure servant à déterminer une grandeur de fluide
EP0025026B1 (fr) Dispositif pour la mesure de la vitesse d'un fluide
DE102004018506A1 (de) Verfahren und Vorrichtung zur Herstellung einer Messvorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße und entsprechende Messvorrichtung
EP3545269A1 (fr) Procédé de mesure de temps du propagation d'un signal ultrasonore dans un fluide en écoulement
DE3740792A1 (de) Verfahren zur fahrwerksregelung
EP3782868A2 (fr) Procédé d'étalonnage d'un capteur de vitesse d'un véhicule ferroviaire
DE102008051983A1 (de) Verfahren und Vorrichtung zur Temperaturmessung an einem rotierenden Bauteil

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003729969

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003729969

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2003729969

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP