• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for detecting a displacement of a motor vehicle comprising a plurality of wheels each comprising a tire inflated with inflation gases. The method comprises the steps of: • measuring (E1) periodically, at a standby frequency, the temperature of the inflation gases of said tire; • comparing (E2) the values measured over a movement detection time interval of predetermined vehicle, • detecting (E3) a movement of the vehicle when the tire inflation gas temperature increases by at least a first predetermined temperature value during said predetermined vehicle motion detection time interval, and measuring device (E4) periodically, at an activation frequency higher than the standby frequency, the temperature of the tire inflation gases when a movement of the vehicle has been detected.
    公开号:FR3041286A1
    申请号:FR1558932
    申请日:2015-09-22
    公开日:2017-03-24
    发明作者:Nicolas Guinart；Christian Niggel
    申请人:Continental Automotive GmbH；Continental Automotive France SAS；
    IPC主号:
    专利说明:

    The invention relates to the field of electronic wheel sensors of a motor vehicle and more particularly to a method, a unit for detecting vehicle movement and a unit for detecting the stopping of the vehicle from the temperature of the inflation gases. of a tire.
    Nowadays, it is known to mount in each wheel of a motor vehicle, for example on the valve or on the inner face of the tire, a unit of measurement of one or more parameters relating to the inflation gases of said tire, such as for example, their temperature and / or their pressure.
    In known manner, a measurement unit of an existing solution comprises a temperature measuring sensor, a pressure measuring sensor, a microcontroller, an electric power supply battery, an accelerometer and wireless communication means with an electronic control unit of the vehicle.
    In order to save the battery power, the unit of measure operates in two different modes: a standby mode and an active mode. In the standby mode, corresponding to the stopping of the vehicle, the microcontroller measures, via the various sensors, the temperature and pressure parameters of the tire inflation gases and the acceleration of the wheels at a low frequency called "standby For example every minute, and analyzes them but without sending them to the electronic control unit in order to save the power supply of the unit of measurement. The unit of measurement remains in standby mode as long as the vehicle is stationary, that is, as long as the measured wheel acceleration is zero. On the other hand, when the vehicle starts moving and the acceleration becomes non-zero, the unit of measurement goes into active mode. In this active mode, the microcontroller measures the temperature and pressure parameters of the tire inflation gases and wheel acceleration at a high frequency, for example every 16 seconds, and sends them via the wireless communication means. , to the electronic control unit at a frequency of report, for example every minute. The electronic control unit analyzes these measurements, in particular the pressure of the tire inflation gases, in order to detect a defect of inflation of a tire during the use of the vehicle and to inform the driver thereof. The use of an accelerometer dedicated to the detection of wheel movement, however, significantly increases the complexity and the cost of the unit of measurement. The invention therefore aims to solve at least in part these disadvantages by providing a solution that is both simple, effective and inexpensive measurement unit for detecting a movement or stopping of a motor vehicle.
    For this purpose, the invention firstly relates to a method for detecting a displacement of a motor vehicle, said vehicle comprising a plurality of wheels each comprising a tire inflated with inflation gases, said method comprising the steps of: • periodically measuring, at a standby frequency, the temperature of the inflation gases of said tire, • comparing the values measured over a predetermined motion detection time interval of the vehicle, • detecting a movement of the vehicle when the tire inflation gas temperature increases by at least a first predetermined temperature value during said predetermined vehicle movement detection time interval, • periodic measurement, at an activation frequency higher than the standby frequency, the temperature of the inflation gases of the tire when a movement of the vehicle has been detected .
    Indeed, rolling, the temperature of the tire inflation gas will increase due to the mechanical and thermal stresses experienced by the tire and the rim. The method according to the invention thus makes it possible to detect a displacement of the vehicle by analyzing the variation of the temperature of the inflation gases of one or more wheels, preferably of all the wheels.
    This analysis is performed on a motion detection time interval which may, for example, be of the order of a few minutes, for example 10 minutes. In fact, the temperature of the inflation gases will increase significantly by several degrees, for example 5 ° C. when the vehicle starts to roll for 10 minutes at more than 30 km / h.
    It goes without saying that this interval of motion detection time can not be too long, for example several hours, otherwise a movement of the vehicle could be detected when the vehicle is, for example, parked in the sun or close to a source of heat that would increase the temperature of the inflation gases.
    Preferably, the method further comprises, in parallel with the step of periodically measuring the activation frequency, a step of sending the measured values to an electronic control unit of the vehicle.
    More preferably, the method further comprises the steps, performed by the electronic control unit, receiving the values sent, analyzing the received values and alerting an inflation pressure defect of one or more wheels when a defect has been detected from the analyzed values. The invention also relates to a method for detecting a stoppage of a motor vehicle, said vehicle comprising a plurality of wheels each comprising a tire inflated with inflation gases, said method comprising the steps of: activation frequency, the temperature of the inflation gases of said tire, • comparison of the measured values over a predetermined stopping detection time interval of the vehicle, • detection of a stopping of the vehicle when the temperature of the inflation gases of the vehicle the tire decreases by at least a second predetermined temperature value and then stabilizes during said predetermined vehicle stopping detection time interval; • periodic measurement, at a standby frequency lower than the activation frequency, of the temperature of the inflating gas of the tire when a stopping of the vehicle has been detected.
    The term "stabilizes" means that the temperature remains within a restricted temperature range, for example 1 ° C wide, during a subinterval of the predetermined vehicle stopping detection time interval, for example 45 min.
    This method makes it possible to detect the stopping of the vehicle when a significant drop and then a stabilization of the temperature of the inflation gases is observed over a stop detection time interval. This stop detection time interval is larger than the motion detection time interval. In fact, the temperature of the inflation gases will decrease slowly as the vehicle stops moving. For example, considering a cooling gradient of a tire of the order of -0.35 ° C / min or about -21 ° C / hour, the stop detection time interval can, for example, be between 15 minutes to 1 hour depending on the outside temperature.
    Preferably, the negative temperature variation is measured over a sliding window of ten minutes at the rate of one evaluation every minute until reaching a predetermined low threshold value. The invention also relates to a method for detecting a movement or stopping of a motor vehicle, said vehicle comprising a plurality of wheels each comprising a tire inflated with inflation gases, said method comprising the steps of: periodically measuring, at a first predetermined frequency, the temperature of the inflation gases of said tire, • comparing the measured values over a predetermined detection time interval, • detecting a movement or stopping of the vehicle when the temperature of the tires the tire inflation gas varies by at least one predetermined temperature difference during said detection time interval; • periodically measuring, at a second predetermined frequency, the temperature of the tire inflation gases when a movement or a stopping of the tire vehicle has been detected.
    According to one aspect of the invention, the first frequency is a standby frequency and the second frequency is an activation frequency higher than the standby frequency, in case of detected motion.
    According to another aspect of the invention, the first frequency is an activation frequency and the second frequency is a sleep frequency lower than the activation frequency, in case of detected stop.
    Advantageously, the detection of a movement of the vehicle is carried out when the temperature of the tire inflation gases increases by at least a first predetermined temperature value during said predetermined vehicle movement detection time interval and the detection of a stopping the vehicle is performed when the tire inflation gas temperature decreases at least a second predetermined temperature value and then stabilizes during said detection time interval. The invention also relates to a measurement unit for detecting a movement of a motor vehicle, intended to be mounted in a wheel of said vehicle, said wheel comprising a tire inflated with inflation gases, said measurement unit being configured to: • periodically receive, at a standby frequency, measurements of the inflation gas temperature of said vehicle tire, • compare the received measurements over a predetermined motion detection time interval of the vehicle, • detect a movement of the vehicle when the temperature of the tire inflation gases increases by at least a first predetermined temperature value during said predetermined vehicle motion detection time interval; • sending a periodic measurement command at an activation frequency higher than the standby frequency, the temperature of the tire's inflation gases when A movement of the vehicle has been detected. The invention also relates to a measurement unit for the detection of a stop of a motor vehicle, intended to be mounted in a wheel of said vehicle, said wheel comprising a tire inflated with inflation gases, said measurement unit being configured to: • periodically receive, at an activation frequency, measurements of the inflation gas temperature of said vehicle tire, • compare the received measurements over a predetermined vehicle stopping detection time interval, • detecting a stop of the vehicle when the tire inflation gas temperature decreases by at least a second predetermined temperature value and then stabilizes during said predetermined vehicle stopping detection time interval, • sending a periodic measurement command at a frequency less than the activation frequency, the tire inflation gas temperature when a vehicle stop has been detected. The invention also relates to a measuring device intended to be mounted in a wheel of a motor vehicle comprising a unit for detecting a movement of said motor vehicle as presented above and a measurement unit for the detection of a stop said motor vehicle as presented above.
    In this case, preferably, the measuring unit for detecting a movement of a motor vehicle and the measuring unit for the detection of a stop of a motor vehicle thus form one and the same entity. The invention also relates to a motor vehicle wheel comprising a measurement unit for detecting a movement of said motor vehicle or a measurement unit for detecting a stoppage of said motor vehicle as presented above or a measuring device such as than previously presented. The invention also relates to a motor vehicle comprising at least one wheel as presented above. Other features and advantages of the invention will become apparent from the following description given with reference to the appended figures given by way of non-limiting examples and in which identical references are given to similar objects. - Figure 1 shows schematically a motor vehicle comprising a plurality of wheels each comprising a measuring unit according to the invention. - Figure 2 schematically shows a motor vehicle wheel comprising a measuring unit according to the invention mounted on the wheel of the rim valve. - Figure 3 schematically shows a motor vehicle wheel comprising a measuring unit according to the invention mounted on the inside of the tire of the wheel. FIG. 4 schematically represents a measurement unit according to the invention. FIG. 5 diagrammatically represents an embodiment of a first method according to the invention. FIG. 6 diagrammatically represents an embodiment of a second method according to the invention. FIG. 7 is an example of motion detection of a vehicle from an increase in the temperature of the inflation gases of its tires beyond a predetermined threshold over a detection time interval of five minutes. - Figure 8 shows a decrease in the temperature of the tire inflation gases of a motor vehicle following a stopping of said vehicle. FIG. 9 represents the average speed of variation of the temperature of the tire inflation gases of a motor vehicle following a stopping of said vehicle. FIG. 10 represents an example of stabilization of the temperature of the tire inflation gases of a motor vehicle following a stopping of said vehicle. The invention makes it possible, in a simple and inexpensive way, to determine whether a motor vehicle is moving or stopped in order to detect an inflation problem on a wheel of the vehicle and in particular to detect it rapidly when the vehicle is in motion. movement so that the driver can be notified.
    This determination is made from the tire inflation temperature which increases when the vehicle rolls and then decreases when the vehicle stops after driving. For this purpose, with reference to FIG. 1, the vehicle 1 comprises a computer control unit 2 ("Electronic Control Unit" or "ECU" in the English language) of calculator type and four wheels, respectively 3A, 3B, 3C. and 3D, in each of which is mounted a measuring unit, respectively 4A, 4B, 4C and 4D.
    With reference to FIGS. 2 and 3, a wheel 3A, 3B, 3C and 3D of a motor vehicle 1 comprises in known manner a rim 32 on which is mounted a tire 34 defining a space for receiving the inflation gases of the tire. The measuring unit 4A, 4B, 4C and 4D can be mounted in different ways.
    Thus, in the example of FIG. 2, the measurement unit 4A, 4B, 4C and 4D is mounted on the valve of the wheel 3A, 3B, 3C and 3D and in the example of FIG. measuring unit 4A, 4B, 4C and 4D is adhered to the inner surface of the tire 34.
    In a preferred embodiment illustrated in FIG. 4, the measurement unit 4A, 4B, 4C and 4D comprises a microcontroller 40, a sensor 42 for measuring the temperature of the inflation gases, a sensor 44 for measuring the pressure. inflating gases, means 46 for wireless communication with the electronic control unit 2 and a battery 48 for supplying electrical power to said microcontroller 40.
    The microcontroller 40 is configured, on the one hand, to collect the measurements made by the temperature measurement sensor 42 and by the pressure measurement sensor 44 and, on the other hand, to send said measurements to the electronic control unit 2 via the wireless communication means 46 on a wireless communication link, respectively LA, LB, LC, LD in FIG.
    The wireless communication means 46 may be based on a type of communication Zigbee, Wifi or Bluetooth known to those skilled in the art. Such a measurement unit 4A, 4B, 4C and 4D is simple and inexpensive in that it does not have to include an accelerometer to detect a movement or a stop of the vehicle 1.
    In normal operation of the vehicle 1, each wheel 3A, 3B, 3C and 3D must be inflated to a pressure within a predetermined inflation interval.
    Also, a defect of inflation is detected on a wheel 3A, 3B, 3C and 3D by the electronic control unit 2 when the pressure of the inflation gases of the tire 34 of the wheel 3A, 3B, 3C and 3D is not within said predetermined inflation interval. For this purpose and according to the invention, the microcontroller 40 of the measurement unit 4A, 4B, 4C and 4D is firstly configured to periodically collect measurements of the temperature and the pressure of the inflation gases of the unit. pneumatic 34 and to send these measurements, via the wireless communication means 46 on the associated communication link LA, LB, LC, LD, to the electronic control unit 2 when the movement of the vehicle 1 has been detected.
    The microcontroller 40 is then configured to compare the measurement values collected over a predetermined motion detection time interval 1 of the vehicle 1 so as to detect a movement of the wheels 3A, 3B, 3C and 3D and thus of the vehicle 1 when the The inflation gas temperature of the tire 34 increases by a predetermined temperature value during said predetermined vehicle 1 motion detection time interval. In other words, the microcontroller 40 detects a movement of the vehicle 1 when the temperature positively varies at least a predetermined distance during the motion detection time interval.
    The microcontroller 40 is furthermore configured to compare the measurement values collected over a predetermined stop detection time interval of the vehicle 1 so as to detect a stop of the wheels 3A, 3B, 3C and 3D and thus of the vehicle 1 when the temperature of the tire inflation gases 34 decreases by a predetermined temperature value and then stabilizes during said predetermined vehicle stopping detection time interval. In other words, the microcontroller 40 detects a stopping of the vehicle 1 when the temperature varies negatively by at least a predetermined distance during the stop detection time interval.
    The measurement collection frequency varies according to the operating mode of the measuring unit 4A, 4B, 4C and 4D. Thus, in a so-called "standby" mode, corresponding to the case where the vehicle 1 is at a standstill, the microcontroller 40 collects the temperature and pressure measurements at a so-called "standby" frequency, for example every minute, but does not send these measurements to the electronic control unit 2 in order to save the power of the battery pack 48. Indeed, the vehicle 1 being stopped, it is not necessary to inform a driver of the vehicle 1 of a tire inflation problem 3A, 3B, 3C and 3D.
    In an "active" mode, the microcontroller 40 collects the temperature and pressure measurements at a so-called "active" frequency higher than the standby frequency and sends these measurements to the electronic control unit 2, via the communication means without wire 46 on the associated communication link LA, LB, LC, LD, so that the electronic control unit 2 analyzes them and ultimately informs the driver of an inflation pressure fault of one or more wheels 3A, 3B , 3C and 3D. The electronic control unit 2 is therefore configured to receive the temperature measurements sent by the measurement units 4A, 4B, 4C and 4D on the communication links LA, LB, LC, LD, to analyze the received measurements and to inform the driver of any defect of inflation identified during this analysis. The invention will now be described in its implementation with reference in particular to Figures 5 to 10.
    With the vehicle stationary, the measuring unit 4A, 4B, 4C, 4D operates in standby mode M1 as illustrated in FIG.
    With reference to FIG. 5, the temperature measurement sensor 42 and the pressure measurement sensor 44 of each measurement unit 4A, 4B, 4C, 4D periodically measure, at the standby frequency, for example every minute, in a step E1, the temperature and the pressure of the inflation gas of the tire 34 corresponding. These measurements are collected and stored by the microcontroller 40.
    In parallel, in a step E2, the microcontroller 40 compares the measured temperature values during a predetermined motion detection time interval of the vehicle, for example 10 minutes.
    A movement of the vehicle 1 is detected, in a step E3, when the temperature of the inflation gases of the tires 34 increases by at least a first predetermined temperature value, for example 5 ° C, during the detection time interval of predetermined vehicle movement 1. Thus, for example, when the vehicle 1 has been stationary for a long time, for example several hours, the temperature of the tire inflation gases is stable or varies little and slowly (interval of 0 to 4 minutes in FIG. 7), for example of the order of the ambient temperature outside the vehicle 1.
    On the other hand, when the vehicle 1 begins to roll, the temperature of the inflation gases increases rapidly (interval of 4 to 11 minutes in FIG. 7).
    Thus, as soon as the temperature of the tire inflation gases increases at time T1 as illustrated in FIG. 7, this temperature is monitored, for example every minute, until it reaches a value K1 greater than one threshold K2 of setting in motion and one deduces that the vehicle 1 set in motion (point A). By way of example, a 5 ° C increase in the temperature of the inflation gases over an interval of 10 min, measured every minute, corresponds to a heating which reflects a movement of the vehicle 1.
    The microcontroller 40 then goes from the standby mode M1 to the active mode M2 in a step E4.
    In this active mode M2, with reference now to FIG. 6, the microcontroller 40 periodically measures the temperature and the pressure of the inflation gases of the tires 34 in a step F1 at the activation frequency, for example every 16 seconds.
    In parallel, the microcontroller 40 compares, in a step F2, the temperature values measured during a predetermined vehicle stopping detection time interval, for example 10 minutes.
    A stop of the vehicle 1 is detected by the microcontroller 40, in a step F3, when the temperature of the inflation gas of the tires decreases at least a second predetermined temperature value, for example 5 ° C, and then stabilizes during predetermined vehicle stopping detection time interval 1. Stabilization of the temperature can be observed when the temperature varies by less than one degree Celsius during a subinterval of the stop detection time interval, for example of at least 30 minutes. In another example, the interval of the predetermined vehicle stopping detecting time interval may be spread over one hour with a forty-five minute cooling period of the tires during which the negative temperature variation is measured over a sliding window of ten minutes at the rate of one evaluation every minute until reaching a low threshold value, for example correlated with the ambient air temperature, followed by a stabilization period of fifteen minutes during which the temperature varies little and slowly, for example a few tenths of degrees.
    In the example of FIG. 8, when the vehicle 1 has stopped, the temperature begins to decrease at the instant T2 and, with reference to FIG. 9, the temperature then varies negatively firstly quickly then more slowly before stabilizing (zero rate of change) as shown by curve K3.
    With reference to FIG. 10, when the temperature drops rapidly and passes a threshold of falling speed K4 (point B), a counter K5 is started which starts when the falling speed of the temperature slows down (point C).
    It is then considered that a stop of the vehicle 1 is detected when the counter K5 exceeds a stabilization threshold K6 the vehicle 1 then moving from the active mode M2 to the standby mode M1.
    In parallel, as long as the measurement unit 4A, 4B, 4C, 4D is in the active mode M2, the microcontroller 40 sends, via the wireless communication means 46, on the communication link LA, LB, LC, LD associated at least the pressure measurements collected at the electronic control unit 2 in a step F4, for example every minute. The electronic control unit 2 receives, in a step F5, these pressure measurements and analyzes them, in a step F6, in order to detect an inflation fault on one or more wheels 3A, 3B, 3C, 3D, when the pressure corresponding is below a pressure threshold value, and to alert the driver of said fault if necessary in a step F7.
    Advantageously, it is possible to send the temperature and pressure measurements of the inflation gases of the tire 34 to the electronic control unit 2 before reaching the active mode as soon as the temperature of the inflation gases begins to vary. , such a transient mode to cover atypical cases and adding robustness to the whole method. Atypical cases are the cases that justify a transient management of the changes of state between the movement and the stopping of the vehicle 1. For example, when the vehicle 1 leaves an air-conditioned car park for example at 20 ° C and that the outside temperature is 0 ° C, although the vehicle is in motion and the tires will eventually rise in temperature, the temperature of the inflation gases will first drop due to the sudden difference in ambient temperature. It is thus a question here of emitting, over a short period of time, a few periodic messages, for example two or three, which guarantee the pressure and temperature supervision of the tires 34 by the electronic control unit 2.
    Once the shutdown detected in step F3, the microcontroller 40 returns to standby mode, in a step F7, in order to save the energy stored in the battery pack 48.
    Finally, it should be noted that the present invention is not limited to the examples described above and is capable of numerous variants accessible to those skilled in the art.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    A method for detecting a movement of a motor vehicle (1), said vehicle (1) comprising a plurality of wheels (3A, 3B, 3C, 3D) each comprising a tire (34) inflated with inflation gases said method comprising the steps of: • periodically measuring (E1), at a standby frequency, the temperature of the inflation gases of said tire (34), • comparing (E2) the measured values over a detection time interval predetermined motion of the vehicle (1), • detecting (E3) a movement of the vehicle (1) when the temperature of the inflation gases of the tire (34) increases by at least a first predetermined temperature value during said interval of predetermined motion detection time of the vehicle (1), • periodic measurement (E4), at an activation frequency higher than the standby frequency, of the tire inflation gas temperature (34) when a movement of the tire vehicle (1) has been detected.
    [2" id="c-fr-0002]
    2. Method according to claim 1, characterized in that it further comprises, in parallel with the step of periodic measurement at the activation frequency, a step of sending (F6) measured values to a control unit. electronics (2) of the vehicle (1).
    [3" id="c-fr-0003]
    3. Method according to claim 2, characterized in that it further comprises a step of receiving the values sent, a step of analyzing the values received and a step of alerting an inflation pressure defect of a or more wheels (3A, 3B, 3C and 3D) when a fault has been detected from the analyzed values.
    [4" id="c-fr-0004]
    4. A method for detecting a stop of a motor vehicle (1), said vehicle (1) comprising a plurality of wheels (3A, 3B, 3C, 3D) each comprising a tire (34) inflated with inflation gases. , characterized in that it comprises the steps of: • periodic measurement (F1), at an activation frequency, of the temperature of the inflation gases of said tire (34), • comparison (F2) of the values measured over an interval predetermined vehicle stopping detecting time (1), • detecting (F3) a stopping of the vehicle (1) when the tire inflation gas temperature decreases by at least a second predetermined temperature value and then stabilizes during said predetermined vehicle stopping detection time interval (1), • measuring (F7) periodically, at a sleep frequency lower than the activation frequency, of the tire inflation gas temperature (34) when an arr t of the vehicle (1) has been detected.
    [5" id="c-fr-0005]
    5. Method according to the preceding claim, characterized in that the negative temperature variation is measured on a sliding window of ten minutes at a rate of evaluation every minute until reaching a predetermined low threshold value.
    [6" id="c-fr-0006]
    6. Measuring unit (4A, 4B, 4C and 4D) for the detection of a movement of a motor vehicle (1), intended to be mounted in a wheel (3A, 3B, 3C, 3D) of said vehicle (1 ), said wheel (3A, 3B, 3C, 3D) comprising a tire (34) inflated by inflation gases, said measurement unit (4A, 4B, 4C and 4D) being configured to: • periodically receive, at a frequency monitoring, measuring the temperature of the inflation gases of said tire (34) of the vehicle (1), • comparing the received measurements over a predetermined motion detection time interval of the vehicle (1), • detecting a movement of the vehicle (1) when the tire inflation gas temperature (34) increases by at least a first predetermined temperature value during said predetermined vehicle motion detection time interval (1), • sending a periodic measurement command, at an activation frequency higher than the f standby rate of the tire inflation gas temperature (34) when a movement of the vehicle (1) has been detected.
    [7" id="c-fr-0007]
    7. Measuring unit (4A, 4B, 4C and 4D) for detecting a stop of a motor vehicle (1), intended to be mounted in a wheel (3A, 3B, 3C, 3D) of said vehicle (1 ), said wheel (3A, 3B, 3C, 3D) comprising a tire (34) inflated by inflation gases, said measurement unit (4A, 4B, 4C and 4D) being configured to: • periodically receive, at a frequency for activating, measuring the temperature of the inflation gases of said tire (34) of the vehicle (1), • comparing the received measurements with a predetermined vehicle stopping detection time interval, • detecting a stopping of the vehicle ( 1) when the tire inflation gas temperature (34) decreases by at least a second predetermined temperature value and then stabilizes during said predetermined vehicle stopping detecting time interval (1), • sending a command of periodic measurement at a standby frequency less than a frequency of activation, the temperature of the tire inflation gases (34) when a stop of the vehicle (1) has been detected.
    [8" id="c-fr-0008]
    Measuring device intended to be mounted in a wheel of a motor vehicle (1) comprising a unit for detecting a movement of said motor vehicle (1) according to claim 6 and a measuring unit for the detection of a stop of said motor vehicle (1) according to claim 7.
    [9" id="c-fr-0009]
    9. Wheel (3A, 3B, 3C, 3D) of a motor vehicle (1) comprising a measuring unit according to one of claims 6 and 7 or a measuring device according to claim 8.
    [10" id="c-fr-0010]
    Motor vehicle (1) comprising at least one wheel (3A, 3B, 3C, 3D) according to claim 9.
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    同族专利:
    公开号 | 公开日
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    法律状态:
    2016-09-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-24| PLSC| Search report ready|Effective date: 20170324 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-26| PLFP| Fee payment|Year of fee payment: 5 |
    2020-09-14| PLFP| Fee payment|Year of fee payment: 6 |
    2021-09-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1558932A|FR3041286B1|2015-09-22|2015-09-22|METHOD AND UNIT OF MEASUREMENT FOR MOTOR VEHICLE|FR1558932A| FR3041286B1|2015-09-22|2015-09-22|METHOD AND UNIT OF MEASUREMENT FOR MOTOR VEHICLE|
    US15/270,794| US10328756B2|2015-09-22|2016-09-20|Measurement method and unit for a motor vehicle|
    CN201610837221.3A| CN106985622B|2015-09-22|2016-09-21|Measuring method and unit for a motor vehicle|
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