• 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 the actuation of a handle (10) of a door (20) of a vehicle, said automobile handle (10) comprising at least one locking electrode (60), having at its capacitance terminals, an unlocking request detecting device (50) generating an unlock request signal, said method of the invention consisting of continuously measuring a variation of the unlock request signal and a variation the capacitance (? CV) of the locking electrode, in determining an unlocking request, and then comparing the variation of the capacitance (? CV) with a threshold (S2) during the first and second, respectively, predetermined durations (t1, t2), consecutive to detect whether the handle (10) has been actuated.
    公开号:FR3025824A1
    申请号:FR1458530
    申请日:2014-09-11
    公开日:2016-03-18
    发明作者:Mickael Guibbert；Olivier Elie；Olivier Gerardiere
    申请人:Continental Automotive GmbH；Continental Automotive France SAS；
    IPC主号:
    专利说明:

    [0001] The invention relates to a method for detecting the actuation of a door handle of a motor vehicle. Actuation means the action of the user when he puts his hand on the handle and he pulls it to open the door and enter the vehicle.
    [0002] Detection of the operation of the door handle or detection of the "pulled handle" is used, for certain types of vehicle, to adapt the passenger compartment (adjustment of the seat position, steering wheel position, personalization the radio, the color of the dashboard for example) according to the access badge "free hand" (and therefore the user) that has been previously identified by the vehicle. It also allows certain applications to activate certain functions such as the "low power" mode of the "hands-free" access system. Indeed, if several approaches to the hand of the user are detected by a presence detection device integrated in the handle but the handle is not actuated (that is to say pulled) following these detections, these detections are "false" detections due to the impact of rain on the handle for example, and the access system "hands-free" is then put in "low consumption" mode which disables the search for the badge of access "hands-free" so as not to discharge the battery of the vehicle unnecessarily. As illustrated in FIG. 1, nowadays, a handle 10 of a vehicle door 20 comprises: an approach and / or contact detection sensor 30 in the form of a capacitive sensor connected to a locking electrode 60 dedicated to the locking of the vehicle, that is to say a conductive metal plane facing the outside of the vehicle, located in Figure 1 perpendicular to an axis Z, which is the axis of rotation of the handle 10, - a presence detection device 50 for the unlocking dedicated to the unlocking of the vehicle, in the form of either an unlocking electrode, oriented towards the door 20 of the vehicle, or an optical transmitter, a piezoelectric cell, a an inductive sensor or a mechanical microswitch, these various devices make it possible to detect the approach or the contact of the hand on the unlocking zone of the handle, a Hall effect sensor 9, a microcontroller 40, under the jurisdiction of a printed circuit connected to the approach detection sensor 30, to the presence detection device 50 for unlocking and to the Hall effect sensor 9.
    [0003] 3025824 2 These elements are usually included in a waterproof B-box. The detection of the actuation of the handle 10 door 20 is generally performed by a dedicated system, comprising a magnet 8 and the Hall effect sensor 9. The magnet 8 is located on the fixed part of the handle 10, called against 11-handle and the Hall effect sensor 9 is located vis-à-vis the magnet 8 on the movable part, in the handle 10 itself. The Hall effect sensor 9 measures the value of the magnetic field induced by the presence of the magnet 8. The value of the magnetic field is high when the handle 10 is in the rest position (see FIG. Hall effect 9 is vis-à-vis the magnet 8. The value of the magnetic field is low, when the handle 10 is actuated (see Figure 2), that is to say when the user draws the handle 10 and the Hall effect sensor 9 is found away from the magnet 8. The variation in value of the magnetic field thus makes it possible to detect the actuation of the handle 10. However, the disadvantages of this dedicated detection system actuation of the handle 10 are multiple: 15 - its high cost, - space constraints and placement of the magnet 8 and the Hall effect sensor 9, - its power consumption. The present invention proposes to detect the actuation of the door handle 20 without using a dedicated system comprising, for example, as described above, a magnet 8 and a Hall effect sensor 9. The present invention proposes a method method for detecting actuation of a door handle of a motor vehicle, said handle comprising: - a presence detection device for unlocking, generating an unlocking request signal, - a locking electrode, presenting to its terminals a capacitor, an approach detection sensor electrically connected to the locking electrode, a microcontroller and electrically connected to the approach detection sensor, and the presence detection device, said method comprising the following steps : - Step 1: continuous measurement of the unlock request signal and a variation of the first capacitance, - Step 2: if during a p after a predetermined time, the unlock request signal is representative of an unlock request and if for a second predetermined duration consecutive to the first predetermined duration, the variation of the capacitance is less than a threshold, - Step 3 : detection of actuation of the validated handle, otherwise 5 - Step 4: repetition of steps 1 to 3. The method for detecting the actuation of the handle of the invention resides in the use of the unlocking request signal of the device detecting the presence of unlocking and the use of the capacitance variation across the locking electrode present in the handle and the timing of said variations. In a first embodiment of the invention, the detection method comprises between step 2 and step 3, the following steps: Step 2b: and if, during a third predetermined duration consecutive to the second predetermined duration, the variation of the capacitance is greater than the threshold. In a second embodiment of the invention, the detection method comprises, between step 2 and step 3, the following steps: Step 2b ': and if during a third predetermined duration consecutive to the second predetermined duration, the variation of the capacitance is greater than the threshold, and the second predetermined duration and the third predetermined duration are within a predetermined time interval. For example, the first predetermined duration is 30 ms and the second predetermined duration is 100 ms, the third predetermined duration is 30 ms, and the predetermined time interval is 200 ms to 1000 ms. In a preferred embodiment of the detection method according to the invention the second predetermined duration begins within a predetermined time after the first predetermined duration has elapsed, between 30 ms and 500 ms. In a preferred embodiment of the detection method according to the invention, the unlocking presence detection device comprises an unlocking electrode having at its terminals a second capacitance and electrically connected to the approach detection sensor, in this mode of detection. Preferred embodiment: 3025824 4 - In step 1, the continuous measurement of the unlock request signal consists of the continuous measurement of the variation of the second capacitor, - In step 2, the request signal release unlocking 5 of an unlocking request consists in the passage over a second threshold of the variation of the second capacity. The invention also applies to any motor vehicle characterized in that it implements the detection method according to the characteristics listed above.
    [0004] Other features and advantages of the invention will appear on reading the following description and on examining the appended drawings in which: FIG. 1, explained above, is a schematic view of a door handle 10 20 of the vehicle of the prior art, in the idle state, comprising a Hall effect sensor 9 for the detection of the actuation of the handle 10, FIG. 2, explained above, is a schematic view of a actuated, that is to say, user-driven, door handle 10 of the prior art vehicle comprising a Hall effect sensor 9, FIG. 3 represents, according to the prior art, a device of FIG. Measurement D of the variation of the capacitance Ce of an electrode, FIG. 4 represents, according to the time t, the variation of the voltage Vc across the capacitors Ce during the charging cycles C + and the discharge C-, according to FIG. device of the prior art, illustrated in FIG. FIG. 5 diagrammatically shows, according to the invention, the unlocking request signal (FIG. 5b) and the variation of the capacitance of the locking electrode (FIG. 5a) when the handle is actuated, FIG. vehicle door according to the invention. The operation detection method of the handle 10 of the invention resides in the use of the unlocking request signal of the presence detecting 50 and the capacitance variation across the locking electrode. 60, integrated in the handle 10 when it is actuated. According to the invention, the passage below a threshold of the variation of the capacitance of the locking electrode following the detection of an unlocking request by means of the unlock request signal means the actuation of the handle 10.
    [0005] According to the invention, the handle 10 comprises a presence detection device 50 for unlocking, and a locking electrode 60 electrically connected to an approach detection sensor 30, in the form of a capacitive sensor connected to a sensor. microcontroller 40 as shown in FIG. 6. Said unlocking presence detection device 50 and the approach detection sensor 30 are both connected to a microcontroller 40. The presence detection device 50 for unlocking can be, for example: an unlocking electrode, oriented towards the door 20 of the vehicle, generating at its terminals a capacitance which varies with the approach of the hand M close to said electrode, when the variation of the capacity has reached a threshold , the approach detection sensor to which the unlocking electrode is connected triggers the emission of an unlock request signal to the mic rocontrôleur 40, 15 - an optical transmitter, located on the door 20 which generates a light beam to a receiver on the handle 10, the approach of the hand M on the handle 10 intersects the light beam, and the receiver then generates the issuing an unlock request signal to the microcontroller 40 20 - a piezoelectric cell, which triggers an unlock request signal, when it undergoes a mechanical deformation due to the mechanical stress of the user's hand M which grips the handle 10, - an inductive sensor, which triggers an unlock request signal 25 when a target approaches by mechanical deformation of the handle (when it is gripped by the hand M of the user) of the sensor a mechanical microswitch, which generates an unlock request signal, when the deformation of the handle 10 (when it is gripped by the hand M of the user) closes the contact of the switch.
    [0006] These various unlocking presence detection devices 50 are known to those skilled in the art and will not be further explained in detail here. They make it possible to detect the approach or the contact of the hand on the unlocking zone of the handle 10, and to trigger an unlock request signal to the microcontroller 40, when the hand of the user M is placed on the zone of This unlocking request signal may take the form of a signal peak (see E1 in FIG. 5a), but other forms are possible, depending on the presence detection device 50 of FIG. unlocking used: reaching a maximum or minimum value or the presence of a tray may mean the unlocking request. In FIG. 5a, the passage over a threshold S1 of the signal S (at the point E1) during a first predetermined duration t1 means that the unlocking request is validated.
    [0007] The capacitive sensor 30, meanwhile, measures the capacitance variations across the locking electrode 60. The measuring principle is known to those skilled in the art and illustrated in FIGS. 3 and 4. The measuring principle is It applies here to the locking electrode 60. For purely explanatory purposes, the measurement principle is generalized to the measurement of the variation ACe 10 of a capacitance Ce of an electrode integrated in a door handle 20. When the hand M of the user approaches the handle 10 of the door 20, that is to say when the user approaches the electrode, in Figure 3, the capacitance Ce of the electrode integrated into the handle increases by an ACe value. This variation 3, C, of the capacitance Ce with respect to the value of the capacitance Ce in the absence of a disturbing element such as the hand M or a part of the body of the user is measured with the help of a measuring device D, integrated in the capacitive sensor 30. If the value of the variation 3, C, exceeds a threshold, this causes the validation of the detection of the presence of the hand M near the handle 10 of the door 20 This means that the hand M of the user is sufficiently close to the handle 10 or placed on said handle 10 and that it requests access to the vehicle. According to the prior art, the measuring device D of the variation of the capacitor Ce shown in FIG. 3 comprises: a supply voltage Vdd; a capacitor Ce, in the form generally of an electrode, having a voltage Vce at its terminals, - charging means 101 and discharge 102 of the capacitance Ce, which perform a predetermined number Nc of charging and discharging cycles of the capacitor Ce, - comparison means 200, in the form of two comparators, a first comparator 201, comparing the voltage Vce across the capacitor Ce with respect to a first reference value Ver, and a second comparator 202 comparing the voltage Vce across the capacitor Ce with respect to a second reference value Vref +; - control means 300 of the charging means 101 and the discharging means 102 which activate the charging means 101 and discharging the capacitor Ce according to the result of the comparison s carried out by the comparison means 200 (201, 202) and according to a detailed logic below, - a counter 400 which measures the time t required for the measuring device D to perform the predetermined number Nc of charging and cooling cycles. discharge of the capacitance Ce, calculating means 500, which calculate a variation of time Δt between the duration tmes2 measured at the instant t and a duration tmesl previously measured, Δt = tmes2-tmesl, the variation of time 31 being representative of the variation A.Ce of the capacity Ce at the instant t. The capacitor Ce is successively charged and discharged by the charging means 101 and the discharge means 102 according to a predetermined number Nc of charging and discharging cycles. The voltage Vce at the terminals of the capacitor Ce evolves according to the state of the first switch SW1 and the second switch SW2, that is to say according to whether the capacitance Ce is charging or discharging. This voltage Vce is compared to a first reference value Vref - and a second reference value Vre f + respectively by the first and second comparators 201 and 202. A value of a first output S1 of the first comparator 201 is a function of the result of the comparison with the first reference value Vre f - Similarly, a value of a second output S2 of the second comparator 202 is a function of the result of the comparison with the second reference value Vref +.
    [0008] The first and second outputs S1 and S2 are connected to the input of the control means 300. These control means 300 are typically, according to the prior art, a synchronous flip-flop logic circuit or also called "RS flip-flop". The control means 300 activate the charging means 101 or the discharge means 102, that is to say more precisely the first SW1 and the second switch SW2 as a function of the values received at the inputs R and S in order to discharge or charge the This capacity. The charging and discharging cycles of the capacitor These are illustrated in FIG. 4. FIG. 4 represents, according to the time t, the variation of the voltage Vce at the terminals of the capacitor Ce during the charges C + and during the discharges C- of the capacity Ce. As illustrated in FIG. 4, the voltage Vce therefore oscillates between the first reference value Vref -and the second reference value Vre f -F. According to the prior art we have: Equation (1): 3025824 8 T1 = 2 xt '= 2 x Ce x (Vre f + -Vre f -) i with: T1: duration of a charge and discharge cycle (s ) t ': duration of a charge or discharge (s) 5 Ce: value of the capacitance Ce (F) Vref +: second reference value (V) Vre f -: first reference value (V) i: absolute value of the charging or discharging current (A) A counter 400 measures the time tmesl necessary for the measuring device D to perform this predetermined number Nc of charging and discharging cycles. Let be the equation (2): tmes1 = Nc x T1 The duration tmes1 is reproducible and characteristic of the absence of disturbance of the sensor, that is to say for example, the absence of a hand M.
    [0009] When the user approaches his hand M of the handle 10, the capacitance Ce increases by a value 3, Ce (see FIG. 3). This variation 3, Ce of capacitance has the effect of increasing the charge and discharge cycle time, and the new duration of a cycle T2 (see Figure 4, dashed curve), when the hand M is present, is greater than the cycle time T1 without the presence of the hand M. It follows a new tmes2 longer time to perform the same predetermined number Nc of cycles (see Figure 4) when the hand M is present near capacitive sensor. The difference between the new duration tmes2 and the duration tmesl previously measured is representative of the variation 3 Ce of the capacitance Ce due to the presence of the hand M. According to the prior art, the variation 3, Ce is given by the equation (3): 25 A Ce = (tmes2-tmesl) xi 2 x (Vref + -Vre f -) xN c Since, according to equation (2): tmesl = Nc x T1 We also have: tmes2 = Nc x T2 30 with: 3, Ce: variation of the capacitance Ce (F) tmes2: duration (with hand M present) to make a predetermined number Nc of charge and discharge cycles (s) tmesl: duration (without hand M present ) to perform a predetermined number Nc 35 of charging and discharging cycles Vref +: second reference value (V) Vref-: first reference value (V) i: absolute value of the charging or discharging current (A) Nc: predetermined number of charge and discharge cycles And thus, we obtain the following equation (4): ACe = (T2-T1) xi 2x (Vref + -Vre f-) T1 : duration of a cycle (without hand M present) of charge and discharge (s) T2: new duration of a cycle (with hand M present) of charge and discharge (s) More hand M approaches, plus this variation 3, This is great. When it exceeds a threshold, the presence detection of the user is validated. It is the same for any object that is close to the locking electrode 60. Conversely, when the hand M or an object moves away from the locking electrode 60, the variation 3, this drop, this is set to profit in the invention and explained below. The locking electrode 60 is designed and positioned in such a way that it is insensitive to the user's intention to unlock, in other words, there is no variation in the capacitance 3.Cv (of the locking electrode) when the hand M of the user is on the handle 10, near the presence detection device 50 unlocking. Indeed the locking method is by detecting the approach and / or the contact of the user's hand M near the locking electrode 60. The locking electrode 60 is positioned in the handle 10 so that its zone of detection of the presence of the hand M of the user, that is to say the locking zone is distinct from the unlocking zone of the presence detection device 50 unlocking.
    [0010] The invention resides in the following observations: the locking electrode 60 is located near the door 20 and the counter-handle 11, which are metal parts. The presence of these metal parts in the environment close to the locking electrode 60 impacts the value of the capacitance Cv at the terminals of said locking electrode 60.
    [0011] Once the user's hand M is placed on the handle 10, the unlocking presence detection device 50 emits a signal representative of an unlocking request, and then when he pulls the handle 10, the removal (From moment P, in Figure 5a) of the handle 10 vis-à-vis the door 20, that the locking electrode 60 also moves away from the door 20 and / or against 11, which creates a decrease in the variation of the capacitance 3, Cv of the locking electrode 60 with respect to its value when the handle 10 is in the rest position, not actuated.
    [0012] This decrease in variation of the capacitance ACv of the locking electrode 60 reaches a minimum when the handle 10 is completely pulled and then remains substantially constant when the handle 10 is in the pulled position, at a maximum distance from the door 20.
    [0013] The invention proposes to use the unlocking request signal and the variations of the capacity of the locking electrode 60 observed during the movement of the handle 10 in order to detect that it has been actuated, in particular by taking advantage of the parasitic effect of the position of the door 20 on the locking electrode 60.
    [0014] According to the detection method of the invention, the passage below a threshold S2 of the variation of the capacitance ACv of the locking electrode 60 as a result of the unlocking request (i.e., as illustrated in FIG. 5a, when the unlocking request signal S reaches a threshold 51 during a first predetermined duration t1) signifies the actuation of the handle 10. By "consecutively" means the passage below a threshold S2 of the variation of the capacitance ACv of the locking electrode 60 after a predetermined delay t1 'starting from the instant P, that is to say once the hand M is placed on the handle 10, in other words once the unlocking presence detection device 50 has emitted a signal S significant of an unlock request. In the example illustrated in FIG. 5a, when the signal S passes over a threshold 51, during a first predetermined duration t1, it is considered that the user requests the unlocking of his vehicle. The locking electrode 60 and the unlocking presence detection device 50 may be sensitive to external disturbances, such as the impact of rain or snow on the handle 10. These disturbances create variations in the ACD capacitance. as well as variations of the unlock request signal S which can lead to false detections. In order to improve the reliability of the detection method according to the invention, the unlocking request detection (in the passage example above a threshold 51 of the unlock request signal S) as well as the passage below a threshold S2 of the variation of the capacitance ACv must be confirmed over a predetermined duration (t1, t2, see FIGS. 5a and 5b), long enough not to take into account short-term variations of the capacitance, of the capacitance ACv, and the unlock request signal due to external disturbances.
    [0015] The method for detecting the actuation of the handle 10 according to the invention therefore comprises the following steps: Step 1: continuous measurement of the unlocking request signal and the variation of the first capacitance 3.Cv of the locking electrode 60, - Step 2: if during a first predetermined duration t1, the unlock request signal is representative of an unlock request and if for a second predetermined duration t2, consecutive (for example, in the predetermined time t1 'starting at time P) at the first predetermined time t1, the variation of the capacity 3.Cv is less than a threshold S2, then - Step 3: detection of actuation of the handle 10 validated, otherwise Step 4: repetition of steps 1 to 3. In a preferred embodiment of the invention, in step 2, the second predetermined duration t2 begins within a predetermined time t1 ', after the first hard time. e determined t1, that is to say once the first determined duration t1 elapsed (cf. Figure 5). Once released, the handle 10 returns to the door 20 in its rest position, with the aid of a return mechanism, for example using springs (not shown). During the return movement of the handle 10 towards the door 20 (instant R in FIG. 5b), the variation of the capacitance 3.Cv of the locking electrode 60 rises towards its initial value, ACvl, that is to say say the value of variation of the capacitance 3.Cv, when the handle 10 is at rest, near the door 10. The variation of the capacitance ACv 20 then returns above the second threshold S2. In a second embodiment of the invention, the detection method comprises an additional step (step 2b) of detecting the passage of the variation of the capacitance 3.Cv above the threshold S2 during a third predetermined duration t3 in order to detect that the return movement of the handle 10 towards the door 20 and thus 25 that the handle 10 has been actuated. This additional step improves the detection reliability of the operation of the handle 10. In a third embodiment of the invention, the second and third predetermined periods of time t2, t3 are included in a predetermined time interval AT (step 2b '). This predetermined time interval AT (see FIG. 5b) represents a standard round trip time of the handle 10 when the user actuates it. This third embodiment further improves the reliability of detection against false detections due to external disturbances.
    [0016] For example: t1 = 30 ms, 3025824 t2 = 100 ms, t3 = 30 ms, AT between 200 ms and 5000 ms, t1 'between 30 ms and 500 ms.
    [0017] In a preferred embodiment of the method according to the invention, the unlocking presence detection device 50 comprises an unlocking electrode (not shown) which has at its terminals a second capacitance and which is electrically connected to the sensor. Approach detection 30. The capacitive sensor 30 measures the capacitance variations across the two electrodes, that of the lock 60 and the unlocking one. In this preferred embodiment, the actuation detection method of the handle 10 of the invention resides in the use of the capacitance variation across the two electrodes present in the handle 10 when it is actuated. According to the invention, the passage below the threshold S2 of the variation of the capacitance 3, Cv of the locking electrode 60 following the passage above a second threshold of the variation of the second capacitance of the electrode unlocking means the actuation of the handle 10. The principle of measuring the variation of the second capacitance of the unlocking electrode is identical to that of the measurement of the variation of the capacitance of the locking electrode 60 and has been explained previously. The approach of the hand M near the unlocking electrode causes an increase in the variation of the second capacity of the unlocking electrode. When this variation is greater than a second threshold, it is considered that the request for unlocking is validated, and that the signal from the unlocking electrode is representative of an unlocking request.
    [0018] Once the door 20 is open and the handle 10 is released by the user (instant R in FIG. 5a), the variation of the second capacity of the unlocking electrode drops back to an initial value, that is to say the variation value of the second capacitance when the user's hand M is not near the unlocking electrode.
    [0019] In this preferred embodiment of the method according to the invention: during step 1, the continuous measurement of the unlocking request signal S consists of the continuous measurement of the variation of the second capacitance of the Unlocking electrode, In step 2, the unlocking request signal S representative of an unlocking request consists of the passage over a second threshold of the variation of the second capacitance of the unlocking.
    [0020] In order to implement the detection method according to the invention, the door handle 20 comprises: means for continuously measuring the unlocking request signal and the variation of the first capacitance ACv 5. means for determining the unlocking request from the unlocking request signal and means for comparing the variation of the capacitance ACv with a threshold S1, - a clock allowing the measurement of the first predetermined duration t1, the second duration predetermined t2, the third predetermined time t3, the predetermined time interval AT, and the predetermined time t1 '; - means for detecting the actuation of the handle 10 as a function of the result of the comparisons and measurements of the 'clock. The comparison means, the clock and the detection means are, for example, software means integrated in the microcontroller 40 '. The invention therefore makes it possible to detect the actuation of the vehicle door handle by using existing components already in the handle, namely a locking electrode and an unlocking electrode and by dispensing with a dedicated sensor.
    [0021] The invention applies to the detection of all the openings of a vehicle, for example to the opening of a vehicle trunk. The invention is particularly advantageous because the detection method is reliable and inexpensive.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. A method of detecting the actuation of a door handle (10) of a vehicle, said car (10) comprising: - an unlocking presence detecting device (50), generating a request signal of unlocking, - a locking electrode (60) having at its terminals a capacitance, - an approach detection sensor (30) connected to the locking electrode (60), - a microcontroller (40, 40 ') connected electrically to the approach detection sensor (30), and to the unlocking presence device (50), said method being characterized in that it comprises the following steps: - Step 1: continuous measurement of the unlock request signal (S) and a variation of the capacitance (3.Cv), - Step 2: if during a first predetermined duration (t1), the unlocking request signal (S) is representative of an unlock request and if during a second predetermined duration (t2), co nsecutive to the first predetermined duration (t1), the variation of the capacitance (ACv) is less than a threshold (S2), - Step 3: detection of actuation of the handle (10) validated, otherwise - Step 4: repetition of the steps 1 to 3.
    [0002]
    2. Detection method according to the preceding claim, characterized in that it further comprises, between step 2 and step 3, the following steps: - Step 2b: and if for a third predetermined duration (t3) consecutive to the second predetermined duration (t2), the variation of the capacitance (3.Cv) is greater than the threshold (S2),
    [0003]
    3. Detection method according to claim 1, characterized in that it further comprises, between step 2 and step 3, the following steps: Step 2b ': and if for a third predetermined duration (t3) consecutive to the second predetermined duration (t2), the variation of the capacitance (ACv) is greater than the threshold (S2), and the second predetermined duration (t2) and the third predetermined duration (t3) are included in an interval predetermined time (AT),
    [0004]
    4. A detection method according to any one of the preceding claims, the unlocking presence detecting device (50) comprising an unlocking electrode having at its terminals a second capacitance and electrically connected to the approach detection sensor (30). ), the method being characterized in that: - In step 1, the continuous measurement of the unlock request signal (S) consists of the continuous measurement of the variation of the second capacitance, 10 - In step 2, the unlocking request signal (S) representative of an unlocking request consists of the passage over a second threshold of the variation of the second capacitance.
    [0005]
    5. Detection method according to any one of the preceding claims, characterized in that the first predetermined duration (t1) is equal to 30 ms and the second predetermined duration (t2) is equal to 100 ms.
    [0006]
    6. Detection method according to claim 2 to 4, characterized in that the third predetermined duration (t3) is equal to 30 ms.
    [0007]
    7. Detection method according to claim 3, characterized in that the predetermined time interval (AT) is between 200 ms and 5000 ms. 20
    [0008]
    8. Detection method according to any one of claims 1 to 4, characterized in that the second predetermined duration (t2) begins within a predetermined time (t1 ') after the first predetermined duration (t1) has elapsed and is between 30 ms and 500 ms.
    [0009]
    9. Motor vehicle characterized in that it implements the detection method according to any one of claims 1 to 8.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3025824A1|2016-03-18|METHOD FOR DETECTING ACTUATION OF A DOOR HANDLE OF A MOTOR VEHICLE
    FR3047808B1|2019-06-28|METHOD FOR DETECTING THE APPROACH AND / OR CONTACT OF A HAND FROM A USER TO A VEHICLE DOOR HANDLE AND DETECTION DEVICE THEREFOR
    FR2999833A1|2014-06-20|DEVICE FOR MEASURING A VARIATION OF CAPACITY AND ASSOCIATED MEASURING METHOD
    WO2010051939A1|2010-05-14|Device for measuring a capacitance variation in a variable capacity structure
    WO2013091821A1|2013-06-27|Capacitance variation measurement device with low power consumption and associated method
    WO2013079642A1|2013-06-06|Sensor for triggering an action on a door of a motor vehicle
    EP2652719B1|2021-04-07|Electronic communication module for locking/unlocking a movable panel of a motor vehicle, associated control central processing unit, and hands-free access system
    FR2921958A1|2009-04-10|DEVICE FOR DETECTING THE PRESENCE OF A USER BY A VEHICLE
    EP1611417A2|2006-01-04|Presence detection by means of a capacitive sensor
    FR3029039A1|2016-05-27|METHOD FOR CALIBRATING A SLEEP DURATION OF AN APPROACH DETECTION SENSOR AND ASSOCIATED SENSOR
    EP1927861A1|2008-06-04|Method and device for determining the state of rotation of a wheel on a vehicle equipped with an active movement sensor capable of delivering an oscillating output signal when said wheel is in rotation
    FR3015395A1|2015-06-26|HANDS-FREE SYSTEM FOR MOTOR VEHICLE
    WO2012156602A1|2012-11-22|Method for measuring the internal resistance of a battery, and adapted battery management system and sensor
    WO2016058656A1|2016-04-21|Method for detecting proximity and/or contact and associated device
    FR2998235A1|2014-05-23|Device for detecting hands-free access badge around car and presence of user near car door, has measurement unit measuring variation of capacity at terminals of antenna so as to represent presence of user near vehicle door
    FR3059499A1|2018-06-01|METHOD FOR DETECTING APPROACH AND / OR CONTACT OF THE HAND OF A USER NEAR A DOOR HANDLE OF A MOTOR VEHICLE, CAPACITIVE SENSOR AND DETECTION MODULE THEREFOR
    FR3046677B1|2019-06-07|SENSOR, SYSTEM AND METHOD FOR DETECTING VARIATION OF A CAPACITY OF A MEASURING CAPACITOR
    FR3096712A1|2020-12-04|CAPACITIVE SENSOR FOR AUTOMOTIVE VEHICLES
    FR3063097A1|2018-08-24|METHOD FOR DETERMINING PARASITE CONTACTS ON AN APPROACH DETECTION SENSOR AND / OR CONTACT SENSOR AND DEVICE FOR DETERMINING THE SAME
    FR3070706B1|2019-08-23|DEVICE FOR DETECTING INTENTION OF LOCKING OR UNLOCKING A VEHICLE OF A MOTOR VEHICLE BY A USER AND ASSOCIATED DOOR HANDLE
    WO2020048764A1|2020-03-12|Device and method for detecting intention to lock or unlock a motor vehicle opening element
    FR3047573A1|2017-08-11|METHOD FOR VOLTAGE CONTROL OF MOUNTED EQUIPMENT IN A MOTOR VEHICLE
    WO2006128850A1|2006-12-07|Device for detecting a capacitance variation and capacitive sensor for detecting the presence of a user using such a device
    FR2962957A1|2012-01-27|CONTROL APPARATUS AND METHOD FOR CONTROLLING MEANS FOR PROTECTING PEOPLE IN A VEHICLE
    FR3087469A1|2020-04-24|DEVICE FOR DETECTING THE INTENT TO LOCK OR UNLOCK A MOTOR VEHICLE DOOR AND ASSOCIATED METHOD
    同族专利:
    公开号 | 公开日
    US20160078701A1|2016-03-17|
    US9640006B2|2017-05-02|
    CN105421907B|2018-02-23|
    FR3025824B1|2016-09-16|
    CN105421907A|2016-03-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10328332A1|2002-06-24|2004-02-12|Aisin Seiki K.K., Kariya|Vehicle door opening/closing device, has handle with externally visible light device, controller that detects opening/closing and controls illumination of light device depending on operation of lock mechanism|
    WO2005041130A2|2003-10-29|2005-05-06|Aisin Seiki Kabushiki Kaisha|Human body detecting device for vehicles|
    EP1760227A1|2004-06-22|2007-03-07|Aisin Seiki Kabushiki Kaisha|Opening and closing apparatus for vehicle door|
    DE102005055888A1|2004-11-23|2007-11-15|Ident Technology Ag|Door closing arrangement has access control electonics to generate evaluation result for closing state based on signal sequence provided by authorization device, providing reliabiliy and protection against manipulation|
    FR2905716A1|2006-09-13|2008-03-14|Aisin Seiki|DOOR HANDLE DEVICE FOR A VEHICLE|
    WO2010082448A1|2009-01-13|2010-07-22|Aisin Seiki Kabushiki Kaisha|Door handle and locking system for vehicle|WO2020239915A1|2019-05-28|2020-12-03|Continental Automotive Gmbh|Capacitive sensor for a motor vehicle|JP2006518817A|2003-02-25|2006-08-17|オーストラリアンアローピーティーワイリミテッド|Access control|
    DE102005055515A1|2005-07-26|2007-02-01|Huf Hülsbeck & Fürst Gmbh & Co. Kg|Sensor arrangement and method for detecting the resting of an operator body part on an actuating point of a motor vehicle closing device with a sensor-assisted evaluation of the output signal of a proximity sensor|
    DE202005020140U1|2005-12-22|2007-05-10|BROSE SCHLIEßSYSTEME GMBH & CO. KG|Motor vehicle door assembly|
    US20090153296A1|2006-03-23|2009-06-18|Legasse Francis M|Keyless control system|
    FR2964517B1|2010-09-06|2012-09-21|Continental Automotive France|METHOD FOR DETERMINING PARASITE CONTACTS ON A DOOR HANDLE CONTACT DETECTION SENSOR OF A MOTOR VEHICLE|
    FR2989529B1|2012-04-12|2016-04-15|Continental Automotive France|METHOD AND MAGNETIC COUPLING LOAD BENCH|
    FR2999833B1|2012-12-19|2015-01-23|Continental Automotive France|DEVICE FOR MEASURING A VARIATION OF CAPACITY AND ASSOCIATED MEASURING METHOD|
    FR3003411B1|2013-03-14|2016-11-11|Continental Automotive France|INDUCTIVE LOADING METHOD OF A PORTABLE DEVICE AND ASSOCIATED LOAD DEVICE ONBOARD IN A VEHICLE|
    JP6234474B2|2013-11-07|2017-11-22|アルプス電気株式会社|Keyless entry system|FR3026503B1|2014-09-30|2016-12-30|Dav|DEVICE AND CONTROL METHOD FOR MOTOR VEHICLE|
    US20180094463A1|2016-10-05|2018-04-05|Huf North America Automotive Parts Mfg. Corp.|Door handle assembly with a magnetic field detector|
    FR3059455B1|2016-11-29|2020-09-25|Continental Automotive France|PRESENCE DETECTION METHOD AND DEVICE FOR MOTOR VEHICLES|
    US10544607B2|2016-12-15|2020-01-28|GM Global Technology Operations LLC|System and method for controlling a vehicle door|
    CN107543972A|2017-09-08|2018-01-05|乐鑫信息科技（上海）有限公司|One kind measurement capacitor system and its measuring method|
    CN108180928A|2017-11-28|2018-06-19|昆山邦泰汽车零部件制造有限公司|A kind of vehicle door status detection device|
    FR3081487B1|2018-05-28|2020-05-01|Continental Automotive France|DEVICE FOR DETECTION BY INDUCTION OF INTENT OF LOCKING OF A MOTOR VEHICLE OPENING ELEMENT WITH TARGET ON A LEVER ARM|
    法律状态:
    2015-09-22| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-18| PLSC| Publication of the preliminary search report|Effective date: 20160318 |
    2016-09-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-25| PLFP| Fee payment|Year of fee payment: 6 |
    2020-09-14| PLFP| Fee payment|Year of fee payment: 7 |
    2021-04-16| TP| Transmission of property|Owner name: VITESCO TECHNOLOGIES, DE Effective date: 20210309 |
    2021-09-21| PLFP| Fee payment|Year of fee payment: 8 |
    2022-02-11| CA| Change of address|Effective date: 20220103 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1458530A|FR3025824B1|2014-09-11|2014-09-11|METHOD FOR DETECTING ACTUATION OF A DOOR HANDLE OF A MOTOR VEHICLE|FR1458530A| FR3025824B1|2014-09-11|2014-09-11|METHOD FOR DETECTING ACTUATION OF A DOOR HANDLE OF A MOTOR VEHICLE|
    US14/844,671| US9640006B2|2014-09-11|2015-09-03|Method for detecting the actuation of a motor vehicle door handle|
    CN201510572715.9A| CN105421907B|2014-09-11|2015-09-10|For the method for the actuating for detecting motor vehicles door handle|
    [返回顶部]