WO2001043997A1 - Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage - Google Patents

Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage Download PDF

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Publication number
WO2001043997A1
WO2001043997A1 PCT/US1999/029606 US9929606W WO0143997A1 WO 2001043997 A1 WO2001043997 A1 WO 2001043997A1 US 9929606 W US9929606 W US 9929606W WO 0143997 A1 WO0143997 A1 WO 0143997A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
calibration
transponder
temperature
temperamre
Prior art date
Application number
PCT/US1999/029606
Other languages
English (en)
Inventor
Richard Stephen Pollack
Dale Lee Yones
Robert Walter Brown
Original Assignee
The Goodyear Tire & Rubber Company
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 The Goodyear Tire & Rubber Company filed Critical The Goodyear Tire & Rubber Company
Priority to US10/148,931 priority Critical patent/US6775632B1/en
Priority to AU23608/00A priority patent/AU2360800A/en
Priority to PCT/US1999/029606 priority patent/WO2001043997A1/fr
Priority to EP99967303A priority patent/EP1240035A1/fr
Priority to BR9917580-0A priority patent/BR9917580A/pt
Priority to JP2001545104A priority patent/JP2003517150A/ja
Priority to US09/980,725 priority patent/US6922134B1/en
Priority to US10/018,208 priority patent/US7260371B1/en
Publication of WO2001043997A1 publication Critical patent/WO2001043997A1/fr

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
    • B60C23/0474—Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
    • 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
    • B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
    • B60C23/0413—Wireless charging of active radio frequency circuits
    • 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
    • B60C23/0455—Transmission control of wireless signals
    • B60C23/0462—Structure of transmission protocol
    • 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
    • B60C23/0471—System initialisation, e.g. upload or calibration of operating parameters

Definitions

  • the IC chip and other components are mounted and/or connected to a substrate such as a printed circuit board (PCB).
  • PCB printed circuit board
  • Figure 3B is a schematic diagram of a portion of the RF transponder of Figure 2, according to the invention
  • Figure 3C is a diagram of a memory space within the RF transponder of Figure 2, illustrating how data may be arranged and transmitted, according to the invention
  • FIG. 2 is a block diagram of the RF transponder 200 (compare 102) of the present invention, illustrating the major functional components thereof.
  • This exemplary system is described as an embodiment which preferably measures pressure and temperature, but it is within the scope of the invention to include measurement of other parameters which employ suitable sensors.
  • the timing generator/sequencer circuit 226 controls when the external pressure- sensing capacitance (C P ) 218 is included in the generation of a signal at frequency Fosc' which is output by the relaxation oscillator 252, and also controls the capturing of the pressure and temperature counts via the data capture circuit 254. For example, to measure temperature, the temperature-sensitive current I(T) passes through the internal oscillator capacitors (Cpx-, and C ⁇ ), but the pressure-sensing capacitor (C P ) 218 is disconnected from (not included in) those capacitances. This means that the frequency Fosc' of the oscillator output signal seen on line 253 is a function of temperature alone.
  • the current scaling circuit 310 (also part of the base-emitter voltage-to-current converter 250 of Figure 2) is constructed in the following exemplary manner.
  • the sources of the transistors P5 and P6 are connected to supply voltage Vdd.
  • the gate of a transistor N6 receives the reference voltage (Nbias) on the line 309.
  • the transistor N6 is connected in a current-mirroring configuration with the transistor N5 (as well as with the aforementioned transistor N4) and will therefore mirror the flow of current I(T) through the transistors N4 and N5. Consequently, the flow of current through the diode-connected transistor P5 will mirror the flow of current through the transistors N4, N5 and N6.
  • Temperature is suitably measured by counting the number of cycles output from the oscillator 312 during a fixed time period (window W ⁇ of time from tO to tl) having a time period t,-.
  • a down-counter (not shown, but associated with the temperature register 232) may be clocked by the oscillator, such that at the end of the window W ⁇ time period t,-, a temperature count N ⁇ is generated.
  • the relationship between temperature count N ⁇ and temperature is substantially linear for the circuitry 300 of this embodiment.
  • the positive (+) inputs (terminals) of the comparators 316a and 316b are tied together and are set to a reference "bandgap" voltage Vbg, such as 1.32 volts, which is independent of temperature.
  • Vbg the reference bandgap voltage
  • the supply voltage (Vdd) on the line 309' may be provided as a multiple of the reference bandgap voltage (Vbg) so as to be a stable operating voltage for the current scaling circuit 310 and the relaxation oscillator 312.
  • Figure 3B illustrates a circuit 370 suitable for generating the supply voltage Vdd.
  • a temperature-independent calculable bandgap voltage Vbg is readily derived, based on the processing techniques employed in fabricating the IC chip, as being inherent to the selected process (e.g., CMOS).
  • This bandgap voltage Vbg is provided to the positive (+) input of an operational amplifier 372, connected as shown, in a feedback loop having gain, to provide supply voltage Vdd as an integral multiple of the bandgap voltage Vbg.
  • Figure 3C illustrates an exemplary architecture for information which is stored in memory (e.g., 238) within the transponder 200, as well as a data stream which is transmitted by the transponder 200 to the external reader/interrogator 106, 166.
  • the memory 238 of the transponder core 204 has, for example, a 144-bit address space which includes 119 (one hundred nineteen) bits of programmable memory and one address location dedicated to the state of the MTMS switch 220 - these 120 (one hundred twenty) bits of programmable memory constituting the EEPROM 136 - plus two 12-bit temperature and pressure registers 232 and 234, respectively.
  • a defining point 508, the significance of which is discussed below, is shown at the coordinate (T.,N T1 ) on the line 506.
  • ni p (N ⁇ /N Pg00 ⁇ 25 - N T /N P60025 )/(800-600) [EQ. 6]
  • the value of ni p is a positive number, and must fall within a predetermined, acceptable range (as determined by the range check on N Pg0025 - N P60025 ). Any transponder having a pressure response slope falling outside of this range can be rejected.
  • a binary conversion is performed, and the result is assigned a suitable number of binary bits (e.g., 7 bits).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un procédé (650) permettant d'étalonner un transpondeur (200, 604) capable de mesurer des données de température (NT) et des données de pression (NP) dans un objet (par exemple, un pneumatique, (104)) et de transmettre un train de données (Figure 3C) à un dispositif de lecture/interrogation (106, 400) extérieur. Ledit transpondeur comprend une mémoire (238) destinée au stockage des mesures, des données (662) d'étalonnage, du numéro d'identification du transpondeur, entre autres. Etant donné que le transpondeur combine les informations relatives à la température et à la pression en des données 'pression', le rapport NT/NP est uniquement un indicateur direct de la pression, relativement insensible aux changements de puissance du transpondeur. Le procédé d'étalonnage selon l'invention utilise une chambre (602) d'étalonnage renfermant des capteurs de pression (614) et de température (612) de référence. Selon ledit procédé, on dispose le transducteur à étalonner dans la chambre, où il est exposé (652) à un certain nombre de températures et de pressions prédéterminées (mesurées par les capteurs de référence) en un certain nombre de points d'étalonnage. On enregistre ensuite, pour chaque point d'étalonnage, un relevé de température (NT) et un relevé de pression (NP), détectés par le transpondeur, ainsi que la température et la pression de référence. Enfin, on calcule (658), sur la base de ces relevés et de ces mesures de référence, les constantes d'étalonnage (NT25, mT, NT/NP700,25, mP).
PCT/US1999/029606 1998-04-14 1999-12-14 Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage WO2001043997A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US10/148,931 US6775632B1 (en) 1999-12-14 1999-12-14 Calibration of a transponders for a tire pressure monitoring system
AU23608/00A AU2360800A (en) 1999-12-14 1999-12-14 Calibration of a transponder for a tire pressure monitoring system
PCT/US1999/029606 WO2001043997A1 (fr) 1999-12-14 1999-12-14 Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage
EP99967303A EP1240035A1 (fr) 1999-12-14 1999-12-14 Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage
BR9917580-0A BR9917580A (pt) 1999-12-14 1999-12-14 Calibração de um transponder para um sistema de monitoramento de pressão de pneumático
JP2001545104A JP2003517150A (ja) 1999-12-14 1999-12-14 タイヤ圧モニターシステムの応答機の校正方法
US09/980,725 US6922134B1 (en) 1998-04-14 1999-12-15 Programmable trimmer for transponder
US10/018,208 US7260371B1 (en) 1998-04-14 1999-12-15 Programmable modulation index for transponder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1999/029606 WO2001043997A1 (fr) 1999-12-14 1999-12-14 Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/007338 Continuation-In-Part WO1999052723A1 (fr) 1998-04-14 1998-04-14 Transpondeur rf et procede permettant de mesurer des parametres associes a un objet surveille

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/029668 Continuation-In-Part WO2001043998A1 (fr) 1998-04-14 1999-12-14 Procede de controle de la pression dans un pneumatique

Publications (1)

Publication Number Publication Date
WO2001043997A1 true WO2001043997A1 (fr) 2001-06-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/029606 WO2001043997A1 (fr) 1998-04-14 1999-12-14 Etalonnage d'un transpondeur pour systeme de surveillance de la pression de gonflage

Country Status (5)

Country Link
EP (1) EP1240035A1 (fr)
JP (1) JP2003517150A (fr)
AU (1) AU2360800A (fr)
BR (1) BR9917580A (fr)
WO (1) WO2001043997A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6658928B1 (en) 1999-12-14 2003-12-09 The Goodyear Tire & Rubber Company Method of monitoring pressure in a pneumatic tire
EP1384604A1 (fr) * 2002-07-24 2004-01-28 The Goodyear Tire & Rubber Company Méthode pour traiter d'information dans un système de surveillance de la pression d'un pneu
US7205886B2 (en) * 2003-06-19 2007-04-17 Honda Motor Co., Ltd. Tire pressure monitoring system
WO2008106387A1 (fr) * 2007-02-27 2008-09-04 Continental Automotive Systems Us, Inc. Reconstruction de signaux de contrôle de pression de pneu
US7469580B2 (en) 2005-03-08 2008-12-30 Sanyo Electric Co., Ltd. Tire inflation pressure determining system and tire inflation pressure determining apparatus
WO2009003457A1 (fr) * 2007-07-04 2009-01-08 Conti Temic Microelectronic Gmbh Transmission d'énergie et d'informations par résonance magnétique dans un véhicule automobile
GB2540414A (en) * 2015-07-16 2017-01-18 Airbus Operations Ltd Tyre pressure sensor device
CN110481249A (zh) * 2019-08-16 2019-11-22 上海能塔智能科技有限公司 一种胎压慢速漏气检测方法及胎压检测装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4657307B2 (ja) * 2006-01-30 2011-03-23 三洋電機株式会社 タイヤ圧力検知システム及びタイヤ圧力検知装置
JP5149531B2 (ja) * 2007-04-06 2013-02-20 住友ゴム工業株式会社 タイヤの空気圧低下検出方法
CN104776957A (zh) * 2015-04-10 2015-07-15 北京振兴计量测试研究所 压力传感器校准方法及压力传感器校准装置
KR20200067648A (ko) * 2018-12-04 2020-06-12 현대자동차주식회사 타이어 공기압 감시 장치 및 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228337A (en) * 1991-01-12 1993-07-20 Westland Aerostructures, Ltd. Tire pressure and temperature measurement system
US5451959A (en) 1988-07-08 1995-09-19 Texas Instruments Deutschland Gmbh Transponder arrangement
US5581023A (en) 1994-10-31 1996-12-03 Handfield; Michael Pressure transducer for monitoring a pneumatic tire
US5661651A (en) 1995-03-31 1997-08-26 Prince Corporation Wireless vehicle parameter monitoring system
WO1999053279A1 (fr) * 1998-04-14 1999-10-21 The Goodyear Tire & Rubber Company Procede et dispositif de mesure de temperature a l'aide d'un circuit integre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451959A (en) 1988-07-08 1995-09-19 Texas Instruments Deutschland Gmbh Transponder arrangement
US5228337A (en) * 1991-01-12 1993-07-20 Westland Aerostructures, Ltd. Tire pressure and temperature measurement system
US5581023A (en) 1994-10-31 1996-12-03 Handfield; Michael Pressure transducer for monitoring a pneumatic tire
US5661651A (en) 1995-03-31 1997-08-26 Prince Corporation Wireless vehicle parameter monitoring system
WO1999053279A1 (fr) * 1998-04-14 1999-10-21 The Goodyear Tire & Rubber Company Procede et dispositif de mesure de temperature a l'aide d'un circuit integre

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6658928B1 (en) 1999-12-14 2003-12-09 The Goodyear Tire & Rubber Company Method of monitoring pressure in a pneumatic tire
EP1384604A1 (fr) * 2002-07-24 2004-01-28 The Goodyear Tire & Rubber Company Méthode pour traiter d'information dans un système de surveillance de la pression d'un pneu
US6868358B2 (en) 2002-07-24 2005-03-15 The Goodyear Tire & Rubber Company Method for processing information in a tire pressure monitoring system
US7205886B2 (en) * 2003-06-19 2007-04-17 Honda Motor Co., Ltd. Tire pressure monitoring system
US7469580B2 (en) 2005-03-08 2008-12-30 Sanyo Electric Co., Ltd. Tire inflation pressure determining system and tire inflation pressure determining apparatus
WO2008106387A1 (fr) * 2007-02-27 2008-09-04 Continental Automotive Systems Us, Inc. Reconstruction de signaux de contrôle de pression de pneu
WO2009003457A1 (fr) * 2007-07-04 2009-01-08 Conti Temic Microelectronic Gmbh Transmission d'énergie et d'informations par résonance magnétique dans un véhicule automobile
GB2540414A (en) * 2015-07-16 2017-01-18 Airbus Operations Ltd Tyre pressure sensor device
US10183534B2 (en) 2015-07-16 2019-01-22 Airbus Operations Limited Tire pressure sensor device
US10875366B2 (en) 2015-07-16 2020-12-29 Airbus Operations Limited Tire pressure sensor device
US11845306B2 (en) 2015-07-16 2023-12-19 Airbus Operations Limited Tire pressure sensor device
CN110481249A (zh) * 2019-08-16 2019-11-22 上海能塔智能科技有限公司 一种胎压慢速漏气检测方法及胎压检测装置

Also Published As

Publication number Publication date
BR9917580A (pt) 2002-08-06
JP2003517150A (ja) 2003-05-20
EP1240035A1 (fr) 2002-09-18
AU2360800A (en) 2001-06-25

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