WO2008022678A1 - Procede et dispositif d'identification de roues montees sur un vehicule a moteur - Google Patents
Procede et dispositif d'identification de roues montees sur un vehicule a moteur Download PDFInfo
- Publication number
- WO2008022678A1 WO2008022678A1 PCT/EP2007/006415 EP2007006415W WO2008022678A1 WO 2008022678 A1 WO2008022678 A1 WO 2008022678A1 EP 2007006415 W EP2007006415 W EP 2007006415W WO 2008022678 A1 WO2008022678 A1 WO 2008022678A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- identification
- motor
- vibration sensor
- vehicle
- values
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004458 analytical method Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000012512 characterization method Methods 0.000 claims description 3
- 238000010200 validation analysis Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
-
- 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
- B60C23/0415—Automatically identifying wheel mounted units, e.g. after replacement or exchange of wheels
- B60C23/0416—Automatically identifying wheel mounted units, e.g. after replacement or exchange of wheels allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right
-
- 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
-
- 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
Definitions
- the invention relates to a method and a device for identifying wheels mounted on a motor vehicle and each equipped with an electronic box adapted to transmit, to a central unit mounted on the vehicle, signals representative of operation of said wheel, further comprising an identification code thereof.
- More and more motor vehicles have monitoring systems and / or parameter measurements comprising sensors mounted on said vehicle.
- monitoring systems comprising sensors mounted on each of the vehicle wheels, dedicated to the measurement of parameters, such as pressure and / or temperature of the tires fitted to these wheels, and intended to inform the driver of any abnormal variation of the measured parameter.
- These monitoring systems conventionally comprise: • mounted on each of the wheels of the vehicle, an electronic box integrating the measurement sensors, a microprocessor and a radiofrequency transmitter,
- a central unit for receiving signals transmitted by the electronic units, equipped with a computer integrating a radio frequency receiver connected to an antenna.
- One of the problems that such monitoring systems need to solve lies in the obligation to associate with each signal received by the receiver of the central unit, information concerning the location of the electronic box and thus of the wheel at the origin of this signal, this obligation lasting for the life of the vehicle, ie to be respected even after wheel changes or simply inversions of the position of these wheels.
- surveillance systems shall be designed to perform two functions consisting of:
- This identification function consists of obtaining and memorizing the identification codes of these electronic boxes,
- a conventional method of locating is to transmit, by means of antennas mounted on the vehicle, low frequency (LF) signals, called identification request signals, intended for electronic boxes, and to control, in response, the transmission, by each of said electronic boxes, to the central unit, of a signal comprising an identification parameter of the latter.
- LF low frequency
- the main advantage of such a method lies in the fact that the location procedure is very fast and can allow a near instantaneous location after the vehicle is started.
- the current "self-learning” method currently consists of equipping each electronic unit with an acceleration sensor, and performing the function
- the major problem of such a method lies in the fact that it imposes a relatively long driving time before providing reliable and exploitable information. Indeed, and firstly, given the accuracy of the acceleration sensors, a minimum speed of the order of 20 km / h is required to obtain usable measurement values. Moreover, once this rolling threshold has been reached, a minimum driving time is necessary in order to confirm the correlation between wheel acceleration and vehicle speed. For this reason, and despite the potential in terms of responsiveness of some current methods of locating the wheels, the current monitoring systems are inoperative not only when the vehicle is stationary, but also for a relatively long variable period of time after the start of the vehicle.
- the present invention aims to overcome this drawback and aims to provide a method of identifying the wheels of a vehicle for carrying out the functions
- Another object of the invention is to provide a very high-performance identification method in terms of reliability and robustness, the implementation of which generates, in addition, a lower overall cost than that generated by the implementation of the invention. 'a current method using accelerometers.
- the invention provides a method for identifying wheels mounted on a motor vehicle and each equipped with an electronic box adapted to transmit, to a central unit mounted on the vehicle, signals representative of parameters. of operation of each wheel further comprising an identification code thereof.
- this identification method consists in integrating a vibration sensor into each electronic box, and:
- any sensor such as advantageously a piezoelectric type sensor, designed to provide a representative signal, in particular in terms of amplitude and frequency, vibrations or mechanical shocks to which the said sensor is subjected.
- the invention therefore consisted of:
- the technique according to the present invention is based on the fact that the wheels of a vehicle all vibrate substantially correspondingly depending on the speed of rotation of the engine. More exactly, there is a relationship between how the wheels vibrate and the rotational speed of the motor. Thus it is easy to determine whether a wheel belongs to a vehicle or not. Indeed if a wheel does not vibrate correspondingly to the rotational speed of the engine then it is deduced that this wheel does not belong to the vehicle in which is implanted this engine. Such a technique is, in the first place, very efficient in terms of responsiveness because it leads to the identification of the wheels mounted on a vehicle almost immediately following the start of the engine.
- this technique is also very efficient in terms of selectivity, in particular because it uses, as a selection parameter, the speed of rotation of the vehicle engine: the probability that the engine speeds M of two neighboring vehicles is strictly identical is, in fact, almost zero.
- the method according to the invention has, because of its principle, the primary advantage of allowing the identification of the wheels mounted on a vehicle, and despite the presence in the vicinity of the vehicle, other wheels with electronic boxes: wheels of a neighboring vehicle, wheel placed near the vehicle for example after its replacement ...
- the vibration sensors required for the implementation of the invention consist of sensors of a simple and proven technology and lead to an overall installation cost (supply, implementation and software adaptation) lower than that of an installation with accelerometers.
- vibration sensors used according to the invention lies in their robustness, which is particularly adapted to the harsh environmental conditions of automobile electronic boxes.
- a correspondence table is established between values of the engine rotational speeds measured and the corresponding vibration frequencies of the signal delivered by a vibration sensor.
- the identification of the wheels results from a simple comparison between the measured values of the rotational speeds of the motor and the engine rotational speed values deduced from the correspondence table from the vibration frequencies generated by this rotation. motor at the wheels.
- the invention extends to a device for identifying wheels mounted on a motor vehicle and each equipped with an electronic box, comprising: a vibration sensor integrated in each electronic box,
- Means for measuring the actual speeds of rotation of the motor And means for analyzing the signals delivered by the different vibration sensors, which are suitable for comparing each of said signals with the engine rotational speed values measured, to enable validation or invalidation of the identification of the equipped wheel. of the vibration sensor at the origin of said signal and therefore to determine whether or not this wheel belongs to the vehicle
- FIG. 1a is a diagrammatic plan view of a vehicle equipped with a monitoring system associated with a device according to the invention for identifying wheels mounted on said vehicle,
- FIG. 1b is a detailed schematic perspective view showing a wheel portion of this vehicle as well as the electronic unit equipping it, and FIG. 2 represents a signal delivered by a vibration sensor according to the invention for a given engine speed, in the example equal to 750 rpm.
- the identification device according to the invention shown by way of example in FIGS. 1a and 1b is intended to determine which wheel identification codes are mounted on the same vehicle.
- This identification device is more specifically intended to be installed on vehicles equipped with a surveillance system such as that shown in FIG. 1a, fitted to a vehicle 1 having a motor M equipped with four wheels conventionally fitted with a tire: two front wheels 2, 3 and two rear wheels 4, 5.
- Such monitoring systems conventionally comprise, firstly, associated with each wheel 2-5, an electronic box 6-9, for example secured to the rim of said wheel so as to be positioned inside the envelope of the tire.
- Each of these electronic boxes 6-9 integrates, for example (FIG. 1b), sensors 11 dedicated to the measurement of parameters, such as pressure and / or temperature of the tire, connected to a computing unit 12 with a microprocessor electrically powered to the by means of a button-cell 13, and connected to an RF transmitter connected to a high-frequency antenna 14.
- the monitoring system also comprises a centralized computer or central unit 10 located in the vehicle 1, comprising a microprocessor and integrating an RF receiver adapted to receive the signals emitted by each of the four electronic boxes 6-9.
- a monitoring system and in particular its central unit 10 are designed to inform the driver of any abnormal variation of the parameters measured by the sensors 11 associated with the wheels 2-5.
- the identification device Associated with this monitoring system and forming an integral part of the latter, the identification device according to the invention comprises a vibration sensor 15, for example of the piezoelectric type, integrated in each electronic box 6-9 and adapted to provide a signal representative, in particular in terms of amplitude and frequency, of the mechanical vibrations or shocks to which the said sensor (and therefore the wheel on which it is mounted) is subjected during the operation of the motor M.
- This identification device also uses , usual measuring means of the speed of rotation of the motor M, such as a specific sensor whose measurements are provided to the central unit 10 using a computer network 16, such as the network
- the vibration sensors 15 positioned according to the invention have the following particularities, which are determinant according to the principle of the invention:
- the characteristics of the signals delivered by the vibration sensors make it possible, by comparison with measured values of the rotation speed of the motor, to validate or invalidate the identification of the wheels.
- a preliminary phase of characterization to analyze, engine M turning, the signal delivered by the vibration sensor 15 of an electronic box 6-9 equipping a wheel 2, 5 mounted on the vehicle 1, so as to establish a table of correspondence between predefined values of speeds of rotation of the motor M and the corresponding values of a characteristic parameter of the signal delivered by the vibration sensor 15, and to establish an identification procedure consisting on the one hand to measure speeds actual rotation of the motor M and secondly, for each vibration sensor 15, to compare the engine rotational speed values measured with values of engine rotational speeds calculated, by means of the correspondence table, to from the values of the characteristic parameter of the signal delivered by the said vibration sensor, so as to validate the identification during a correlation between the values measured engine rotational speed and engine rotational speed values calculated using the correspondence table.
- the signals delivered by the vibration sensors 15 have a frequency proportional to the speed of rotation of the motor M. More exactly, an engine M rotating at a rotation speed ⁇ rpm produces a vibration frequency equal to 2 ⁇ (two piston strokes per motor revolution). Thus, the signal shown in Figure 2, whose frequency is equal to 26 Hz, corresponds to a motor rotation speed of 750 rpm.
- each table consists of a correspondence table between the values of the rotational speeds of the motor M and the corresponding frequencies of the signal delivered by a vibration sensor 15.
- the identification method according to the invention described above thus allows, by means of installing a simple vibration sensor 15 of low cost in each electronic box 6-9 on a wheel 2-5 of a vehicle 1, d very quickly and reliably identify all wheels mounted on this vehicle, this thanks to the correspondence between the speed (known) of rotation of the motor and the vibration frequency measured by the vibration sensors located in each of the wheels of the vehicle. vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/438,565 US20100011848A1 (en) | 2006-08-25 | 2007-07-19 | Method and device for identifying wheels mounted on a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0607516A FR2905190B1 (fr) | 2006-08-25 | 2006-08-25 | Procede et dispositif d'identification de roues montees sur un vehicule a moteur |
FR06/07516 | 2006-08-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008022678A1 true WO2008022678A1 (fr) | 2008-02-28 |
Family
ID=37891505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/006415 WO2008022678A1 (fr) | 2006-08-25 | 2007-07-19 | Procede et dispositif d'identification de roues montees sur un vehicule a moteur |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100011848A1 (fr) |
KR (1) | KR20090055014A (fr) |
CN (1) | CN101541567A (fr) |
FR (1) | FR2905190B1 (fr) |
WO (1) | WO2008022678A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102323437A (zh) * | 2011-05-25 | 2012-01-18 | 李恩邦 | 机动车发动机转速测量方法及测量装置 |
JP2013043575A (ja) * | 2011-08-25 | 2013-03-04 | Nissan Motor Co Ltd | 車両システムの異常判断装置 |
CN104035388B (zh) * | 2013-11-14 | 2017-01-25 | 哈尔滨工程大学 | 游艇状态远程监测系统及方法 |
CN105856981A (zh) * | 2015-01-21 | 2016-08-17 | 车王电子股份有限公司 | 无线胎压监测系统及其自动学码方法 |
CN108137074B (zh) * | 2015-09-04 | 2021-12-03 | 看门人系统公司 | 轮式车的运动估计 |
CN110612559B (zh) | 2017-03-08 | 2021-10-15 | 看门人系统公司 | 用于轮式车的导航系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204758B1 (en) * | 1999-07-23 | 2001-03-20 | Schrader-Bridgeport International, Inc. | System to automatically determine wheel position for automotive remote tire monitoring system |
WO2002034553A1 (fr) * | 2000-10-23 | 2002-05-02 | Societe De Technologie Michelin | Systeme de surveillance de pression a faible consommation de courant pour pneumatique |
US20060001533A1 (en) * | 2004-07-05 | 2006-01-05 | Honda Motor Co., Ltd. | System and method for monitoring tire pressure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2889595B1 (fr) * | 2005-08-04 | 2007-10-19 | Siemens Vdo Automotive Sas | Procede et dispositif de localisation de la position d'une roue d'un vehicule |
FR2905189B1 (fr) * | 2006-08-25 | 2010-04-16 | Siemens Vdo Automotive | Procede et dispositif de localisation de la position longitudinale de roues d'un vehicule |
FR2924982B1 (fr) * | 2007-12-14 | 2009-12-25 | Siemens Vdo Automotive | Procede de localisation de la position longitudinale de roues d'un vehicule |
-
2006
- 2006-08-25 FR FR0607516A patent/FR2905190B1/fr not_active Expired - Fee Related
-
2007
- 2007-07-19 WO PCT/EP2007/006415 patent/WO2008022678A1/fr active Application Filing
- 2007-07-19 US US12/438,565 patent/US20100011848A1/en not_active Abandoned
- 2007-07-19 CN CNA2007800315565A patent/CN101541567A/zh active Pending
- 2007-07-19 KR KR1020097005992A patent/KR20090055014A/ko not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204758B1 (en) * | 1999-07-23 | 2001-03-20 | Schrader-Bridgeport International, Inc. | System to automatically determine wheel position for automotive remote tire monitoring system |
WO2002034553A1 (fr) * | 2000-10-23 | 2002-05-02 | Societe De Technologie Michelin | Systeme de surveillance de pression a faible consommation de courant pour pneumatique |
US20060001533A1 (en) * | 2004-07-05 | 2006-01-05 | Honda Motor Co., Ltd. | System and method for monitoring tire pressure |
Also Published As
Publication number | Publication date |
---|---|
US20100011848A1 (en) | 2010-01-21 |
FR2905190A1 (fr) | 2008-02-29 |
CN101541567A (zh) | 2009-09-23 |
KR20090055014A (ko) | 2009-06-01 |
FR2905190B1 (fr) | 2008-10-10 |
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