WO2022269071A1 - Procede de detection d'ouverture des ouvrants d'un vehicule automobile et dispositif de detection associe - Google Patents
Procede de detection d'ouverture des ouvrants d'un vehicule automobile et dispositif de detection associe Download PDFInfo
- Publication number
- WO2022269071A1 WO2022269071A1 PCT/EP2022/067417 EP2022067417W WO2022269071A1 WO 2022269071 A1 WO2022269071 A1 WO 2022269071A1 EP 2022067417 W EP2022067417 W EP 2022067417W WO 2022269071 A1 WO2022269071 A1 WO 2022269071A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- modules
- distance
- module
- vehicle
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 37
- 238000013459 approach Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000269627 Amphiuma means Species 0.000 description 2
- 101000582320 Homo sapiens Neurogenic differentiation factor 6 Proteins 0.000 description 2
- 102100030589 Neurogenic differentiation factor 6 Human genes 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
Definitions
- TITLE METHOD FOR DETECTING OPENING OPENINGS OF A MOTOR VEHICLE AND ASSOCIATED DETECTION DEVICE
- the invention relates to a method for detecting the openings of a motor vehicle and an associated detection device.
- the detection of opening of the openings (door, trunk) of a motor vehicle is carried out by the detection of a dedicated sensor in each opening, contact detection sensor, hall effect sensor, etc. ...
- the invention proposes a detection method and a detection device that is much less expensive, reliable and simple to implement.
- the invention relates to a method for detecting the opening of the openings of a motor vehicle by a detection device, the detection device comprising at least two ultra-high frequency communication modules, each located respectively on a different opening. and connected to an electronic computer, the detection device allowing "hands-free" access to the vehicle, the method being remarkable in that, the modules being able to identify each other mutually, an opening angle of one first opening is determined according to: a. a first distance between a point of rotation of the first opening on which a first communication module is located and a position of a second module when the two openings associated with said two modules are closed, b. a second distance between a point of rotation of the first opening and a position of the first module on said opening, c. a distance between the two modules, when the two openings associated with the two modules are closed, d. a distance between said modules, said distance being determined by a time of flight of the ultra high frequency waves exchanged between the two modules.
- the distance between the two modules, when the two openings are closed, as well as the first and the second distance are determined beforehand during a calibration phase.
- the invention also relates to a device for detecting the opening of the openings of a motor vehicle comprising at least two ultra-high frequency communication modules, each located on a different opening of the vehicle and connected to an electronic computer, the detection device allowing "hands-free" access to the vehicle, the device being remarkable in that it further comprises: a. Means of identification of the modules between them, b. Means for estimating a distance between a first module located on a first opening and at least one second module located on a second opening, from a time of flight of the ultra-wideband waves exchanged between the two modules, c . Means for determining the opening of the first opening associated with the first module, according to the distance thus estimated and the positions of the first module and of the second module on the vehicle, when the first and the second opening are closed.
- the positions of the first and second module on the vehicle consist of: a. a first distance between a point of rotation of a first opening on which a first communication module is located and a position of a second module when the first and second openings associated with said two modules are closed, b. a second distance between a point of rotation of the first opening and a position of the first module on said opening, c. a distance between the two modules when the two openings associated with the two modules are closed,
- the invention also applies to any motor vehicle comprising a detection device according to any one of the features listed above.
- FIG. 1 schematically represents a motor vehicle comprising a detection device according to the invention
- FIG. 2 is a flowchart representing the detection method according to the invention.
- FIG. 1 is shown a motor vehicle V equipped with a detection device D according to the invention.
- the vehicle is equipped with a detection device D comprising at least two communication modules in UWB, 10,20 in the example illustrated in Figure 1 we will consider three modules 10, 20,30 in UWB, (" Ultra Wide Band” in English) or Ultra Wide Band, which allow “hands-free” access and/or starting of the vehicle V by the user.
- Two communication modules, a first module 10, and a third module 30 are located in the two front doors P1, P3 of the vehicle V, and a second communication module 20 is at the tailgate P2 of the trunk of the vehicle V.
- the device D detection also includes an electronic computer 100 which communicates with the communication modules 10, 20, 30 to send and receive information with said modules.
- a so-called "hands-free" access system to a motor vehicle V allows an authorized user to lock and/or unlock the openings P1, P2, P3 of his vehicle V without having to physically press buttons d 'a key.
- the vehicle identifies portable equipment such as a badge or a remote control carried by a key, or even a smart mobile phone (called a "smartphone” in English) by the user and if the badge or the remote control, the key or the telephone is located in a predetermined zone around the vehicle V or in the vehicle V and is identified as belonging to the vehicle V, then the vehicle V automatically locks/unlocks its openings according to the user's intention, without the user having to physically handle a key.
- a communication is established on a wireless communication link, for example in Ultra Wide Band UWB, between the access device, for example an electronic badge or a mobile telephone. , and the communication module 10, 20, 30 in order to authenticate said access device using its identifier.
- a wireless communication link for example in Ultra Wide Band UWB
- the access device for example an electronic badge or a mobile telephone.
- the communication module 10, 20, 30 in order to authenticate said access device using its identifier.
- the communication module 10, 20, 30 comprises an antenna allowing the reception of the identifier sent by the access device.
- Each communication module is connected to the electronic computer 100 of the vehicle (“ECU”: English abbreviation for “Electronic Control Unit”) to which it transmits the identifier.
- Ultra wideband or Ultra Wide Band in French (ULB) is a radio modulation technique which is based on the transmission of very short pulses, often less than a nanosecond. Thus, the bandwidth can reach very large values.
- a capacitive sensor In order to detect the presence of the user's hand and allow the unlocking of the openings P1, P2, P3 of the vehicle, it is known to use a capacitive sensor. Generally, a capacitive sensor is dedicated to one area.
- the communications modules 10, 20, 30 are generally located in the openings P1, P2, P3 and operate only when the openings are closed; has.
- the openings have then been closed beforehand to ensure the safety of the user when starting the vehicle V.
- each opening whether the front doors P1 and P3, or the rear trunk P2, are respectively equipped with a communication module 10, 30 and 20.
- Each communication module 10, 20, 30 comprises in a manner known per se: a. A UWB communication antenna, b. A UWB transmitter/receiver circuit, c. Means of identifying portable user equipment, which may alternatively be included in the electronic computer 100.
- the invention proposes that said communication modules are also able to detect the opening of openings of the vehicle and consequently that said communication modules 10, 20, 30, unlike the prior art, also operate when the openings P1, P2, P3 are open.
- the opening angle of the first opening P1 on which the first module 10 is located will be determined by the second module 20 located on the second opening P2, but of course on the invention applies mutatis mutandis to the other openings P2, P3 located on the vehicle V.
- the detection device (D) also comprises: a. Means of identification M1 of the modules 10, 20, 30 between them, b. Means M2 for estimating a distance between said module, called first module 10 and at least one second module 20, from a time of flight t' of the ultra-wideband waves exchanged between the two modules 10, 20, vs. Means M3 for determining the opening of the first opening P1 associated with the first module 10, as a function of the distance d' thus estimated.
- the identification means M1 comprise means of comparison between an identifier ID received from another communication module 10, 20, 30 and stored identifiers in order to verify that the identifier received corresponds to a module embedded 10, 20, 30 on the same vehicle V and to associate this module with an opening and at a predetermined position on the vehicle V, as will be described later.
- the identification means M1 can be included in the electronic computer 100 which centralizes this information coming from the communication modules 10, 20, 30.
- the means M2 for estimating a distance between a first module 10 and at least one second onboard module 20 consist of means for estimating a time of flight t' of waves exchanged between first module 10 and the second module 20. From the time of flight t' of the wave which carries out a return trip between the two modules, 10, 20 it is possible to calculate a distance of separating the two modules, from of the following formula:
- the means M3 for determining the opening of the first opening P1 comprise means for calculating an opening angle Q' of said first opening P1 with respect to its fixed amount on the vehicle as a function of the distance of thus calculated and means of comparison with a predetermined initial angle Q, as will be described below.
- the communication modules 10, 20, 30 are initially respectively placed at the points P, O, Q on the openings P1, P2, P3 of the vehicle V.
- the point N is defined as the point of rotation of the first opening P1, that is to say in this case of the door P1 which includes the first module 10.
- the first module 10 moves from a first position P to a second position P', defining an opening angle Q' between the door and the fixed upright of the door on the vehicle. v.
- a first distance m between the point of rotation N of the first opening P1 and the position O of the second module 20 when the two openings P1, P2 associated with said two modules 10, 20 are closed is known.
- This first distance m can be determined or measured during the design or manufacture of the vehicle V.
- a second distance h between the point of rotation P of the first opening P1 and the position P of said associated module 10 on said opening P1 is also known. Similarly, this second distance h can be determined, measured during the design or manufacture of the vehicle V. Of course, this second distancer h does not vary depending on whether the first opening P1 is open or closed, since it corresponds to the position of the first module 10 on the first opening P1 with respect to the axis of rotation N of said first opening P1.
- the distance d separating the first module 10 from the second module 20 is known, said distance can be determined, measured during the design or manufacture of the vehicle V or again by measuring the time of flight of the waves exchanged between the two modules, and recorded in each of the modules 10, 20 or in the central computer 100.
- the new distance between the two said modules 10, 20 is determined by means of the time of flight t' of the UWB waves exchanged between the two modules 10, 20 (cf. [Math 1]).
- the means M3 for determining the opening of the first opening M1 comprise means for calculating an angle of opening Q' from: a. the distance d separating the first and the second module 20, when the corresponding openings, that is to say the first and second openings P1, P2 are closed, b. The first distance m between the second module 20, and said point of rotation N of the first opening P1, when the two openings P1, P2 are closed c. The second distance h between the first module 10 and the point of rotation N of the associated opening, that is to say of the first opening P1 on which the first module 10 is located, d. The distance d', between the two modules 10, 20, once the first opening P1 is open, and the second opening P2 is closed, determined from the time of flight t' of the UWB waves exchanged between the two modules 10, 20.
- the identification means M1, the estimation means M2 and the determination means M3 are preferably in software form, and are integrated in each of the modules 10, 20, 30 or alternatively they can be included in the computer electronic 100 which determines the opening angle Q' of the opening according to the information it receives from the communication modules 10, 20, in this case the time of flight t' of the UWB waves exchanged between the two modules , 10,20 and the identifiers ID1, ID2 of each module 10, 20.
- the other distances, the first distance m, the second distance h, and the distance d between the two modules when the openings P1, P2, P3 are closed are data determined beforehand and stored either in each module 10, 20, 30 or in the electronic computer 100.
- a first step E1 when the two openings P1, P2 are closed, the first distance m between the second module 20 and the point of rotation N of the first opening P1 (whose opening is to be determined) is known, as well as the distance d between the two modules 10, 20.
- the second distance h between the point of rotation N and the location of the first module 10 on the door is also known, as explained previously.
- the modules communicate their identifiers ID1, ID2 between them (step 1b) in order to know on which opening they are located and thus to correctly associate the first distance m between a module located on a closed opening and the point of rotation of the opening the opening of which one seeks to determine and the distance d between the two modules concerned, that is to say the module located on the opening of which one seeks to determine the opening, and another module located on a closed opening.
- the second module 20 and the first module 10 exchange their identifier ID1, ID2.
- the initial angle Q is determined according to the distances m, h, d listed above and according to the formula [Math 2] [0049] It then follows, during a fourth step E4, via the time of flight t′ of the waves exchanged between the two modules 10, 20, the calculation of the distance d′ separating the two modules 10 ,20 (cf. [Math 1]).
- Step E5 the two modules 10, 20 exchange their identifier ID1', ID2', in order to determine the first distance m, the second distance h, and the distance d separating them when their respective openings P1, P2 are closed. Steps E4 and E5 can be performed simultaneously during UWB communication between the two modules 10, 20.
- the opening angle Q′ which is as previously explained the vertex angle the point of rotation N of the opening P1 and belonging to the triangle defined by the point of rotation N of the opening P1, the position P' of the communication module 10 in the opening P1 and the position O of another module 20, when the first opening P1 is open, and the second opening P2 is closed.
- m distance between the point of rotation N of the first opening P1 and the second module 20 when the two openings are closed
- h distance between the point of rotation N and the first module
- d' distance between the two modules 10, 20 determined by the flight time t', when the first opening P1 is open and the second opening P2 is closed
- the opening angle Q' of the first opening P1 on which the first module 10 is located can be determined thanks to: a.
- the opening of the first opening P1 can be determined by: a.
- the distance between the two modules determined by the time of flight t' of the UWB waves exchanged between the two said modules 10, 20.
- the invention is therefore ingenious insofar as it makes it possible to determine the aperture of an opening from on-board communication modules in the vehicle V, whose function initially is to manage the “hands-free” opening of the openings.
- the invention is all the more interesting because it is inexpensive and easy to implement.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/569,064 US20240142595A1 (en) | 2021-06-25 | 2022-06-24 | Method for detecting the opening of the openable sections of a motor vehicle and associated detection device |
CN202280044924.4A CN117597270A (zh) | 2021-06-25 | 2022-06-24 | 用于检测机动车辆的可开启部分的开度的方法和相关联的检测装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2106853 | 2021-06-25 | ||
FR2106853A FR3124450B1 (fr) | 2021-06-25 | 2021-06-25 | Procede de detection d’ouverture des ouvrants d’un vehicule automobile et dispositif de detection associe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022269071A1 true WO2022269071A1 (fr) | 2022-12-29 |
Family
ID=77021592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/067417 WO2022269071A1 (fr) | 2021-06-25 | 2022-06-24 | Procede de detection d'ouverture des ouvrants d'un vehicule automobile et dispositif de detection associe |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240142595A1 (fr) |
CN (1) | CN117597270A (fr) |
FR (1) | FR3124450B1 (fr) |
WO (1) | WO2022269071A1 (fr) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5307048A (en) * | 1992-12-18 | 1994-04-26 | Protect & Defend, Inc. | Vehicle security system including an anti-carjacking system |
KR100610342B1 (ko) * | 2004-07-30 | 2006-08-10 | 현대자동차주식회사 | 자동차의 도어를 통한 빗물 유입 방지 장치 |
US8454081B2 (en) * | 2008-09-05 | 2013-06-04 | Volvo Construction Equipment Holding Sweden Ab | Sliding door safety device for heavy construction equipment |
US9777528B2 (en) * | 2015-07-29 | 2017-10-03 | Ford Global Technologies, Inc. | Object detection and method for vehicle door assist system |
US10329823B2 (en) * | 2016-08-24 | 2019-06-25 | Ford Global Technologies, Llc | Anti-pinch control system for powered vehicle doors |
US10392837B2 (en) * | 2014-10-29 | 2019-08-27 | Autonetworks Technologies, Ltd. | Onboard device |
US20190309564A1 (en) * | 2018-04-06 | 2019-10-10 | Magna Closures Inc. | Vehicle latch with integrated radar module |
US10486646B2 (en) * | 2017-09-29 | 2019-11-26 | Apple Inc. | Mobile device for communicating and ranging with access control system for automatic functionality |
US10696275B2 (en) * | 2017-03-28 | 2020-06-30 | Continental Automotive France | Method for activating a function of a vehicle |
US20210061225A1 (en) * | 2019-08-30 | 2021-03-04 | Denso International America, Inc. | Multiplexed antenna circuit network for ultra-high frequency low energy based phone as a key access to a vehicle |
-
2021
- 2021-06-25 FR FR2106853A patent/FR3124450B1/fr active Active
-
2022
- 2022-06-24 WO PCT/EP2022/067417 patent/WO2022269071A1/fr active Application Filing
- 2022-06-24 US US18/569,064 patent/US20240142595A1/en active Pending
- 2022-06-24 CN CN202280044924.4A patent/CN117597270A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5307048A (en) * | 1992-12-18 | 1994-04-26 | Protect & Defend, Inc. | Vehicle security system including an anti-carjacking system |
KR100610342B1 (ko) * | 2004-07-30 | 2006-08-10 | 현대자동차주식회사 | 자동차의 도어를 통한 빗물 유입 방지 장치 |
US8454081B2 (en) * | 2008-09-05 | 2013-06-04 | Volvo Construction Equipment Holding Sweden Ab | Sliding door safety device for heavy construction equipment |
US10392837B2 (en) * | 2014-10-29 | 2019-08-27 | Autonetworks Technologies, Ltd. | Onboard device |
US9777528B2 (en) * | 2015-07-29 | 2017-10-03 | Ford Global Technologies, Inc. | Object detection and method for vehicle door assist system |
US10329823B2 (en) * | 2016-08-24 | 2019-06-25 | Ford Global Technologies, Llc | Anti-pinch control system for powered vehicle doors |
US10696275B2 (en) * | 2017-03-28 | 2020-06-30 | Continental Automotive France | Method for activating a function of a vehicle |
US10486646B2 (en) * | 2017-09-29 | 2019-11-26 | Apple Inc. | Mobile device for communicating and ranging with access control system for automatic functionality |
US20190309564A1 (en) * | 2018-04-06 | 2019-10-10 | Magna Closures Inc. | Vehicle latch with integrated radar module |
US20210061225A1 (en) * | 2019-08-30 | 2021-03-04 | Denso International America, Inc. | Multiplexed antenna circuit network for ultra-high frequency low energy based phone as a key access to a vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR3124450A1 (fr) | 2022-12-30 |
FR3124450B1 (fr) | 2023-05-12 |
US20240142595A1 (en) | 2024-05-02 |
CN117597270A (zh) | 2024-02-23 |
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