WO2019014363A1 - Système de détection d'occupant, tapis de détection et commutateur électrique - Google Patents

Système de détection d'occupant, tapis de détection et commutateur électrique Download PDF

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Publication number
WO2019014363A1
WO2019014363A1 PCT/US2018/041666 US2018041666W WO2019014363A1 WO 2019014363 A1 WO2019014363 A1 WO 2019014363A1 US 2018041666 W US2018041666 W US 2018041666W WO 2019014363 A1 WO2019014363 A1 WO 2019014363A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
nodes
layer
electrical switch
conductor layer
Prior art date
Application number
PCT/US2018/041666
Other languages
English (en)
Inventor
David Wilson
Original Assignee
Joyson Safety Systems Acquisition Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/646,841 external-priority patent/US10330813B2/en
Priority claimed from US15/989,960 external-priority patent/US20190362911A1/en
Application filed by Joyson Safety Systems Acquisition Llc filed Critical Joyson Safety Systems Acquisition Llc
Priority to JP2020501520A priority Critical patent/JP7237921B2/ja
Priority to CN201880057236.5A priority patent/CN111051146B/zh
Publication of WO2019014363A1 publication Critical patent/WO2019014363A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
    • B60N2/0025—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat by using weight measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
    • B60N2/0034—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat in, under or on the seat cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/12—Capacitive; Electric field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/40—Force or pressure sensors
    • B60N2210/46—Electric switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2230/00—Communication or electronic aspects
    • B60N2230/10—Wired data transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B60R21/01524—Passenger detection systems using force or pressure sensing means using electric switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01532—Passenger detection systems using field detection presence sensors using electric or capacitive field sensors

Definitions

  • the present application relates to an occupant detection system using either a force activated electrical switch or capacitive sensing, which may be used to detect occupancy of a vehicle seat in a vehicle.
  • the electrical switch has applications apart from occupant sensing.
  • the capacitive sensing may employ a sensing mat.
  • Figure 1 is a side view of a vehicle seat containing an occupant detection system or an electrical switch.
  • Figure 2 is a top view of the occupant detection system of Fig. 1.
  • Figure 3 is an exploded view of a sensor pad used in the occupant detection system of Fig. 2, the pad structure may be employed as an electrical switch.
  • Figure 4 is a side view of a base used in the sensor pad and electrical switch of Fig. 3.
  • Figure 5 is top view of the base of Fig. 4.
  • Figure 6 is a partial cross-sectional view of the sensor pad of Fig. 5 sectioned through lines 6-6 and including a first base and a second base.
  • Figure 7 is a detailed view of the region of the sensor pad circled in Fig. 6.
  • the occupant detection system is directed to an electrical switch that is configured to be activated by a force (e.g., weight, a pressing force, presence of an object, etc.) or a capacitive sensing system that is configured to detect the presence of an occupant in a seat using capacitance sensing.
  • the occupant detection system may comprise a first base, a second base, and a plurality of nodes located on either of the first base and the second base.
  • the plurality of nodes extends away from either the first base or the second base to create a gap or spacer layer between the first base and the second base.
  • the plurality of nodes may be arranged in a partem.
  • the partem may include space between adjacent nodes.
  • the gap or spacer layer between the first base and the second base decreases to allow at least a portion of the first base to contact a portion of the second base in the space located between the plurality of nodes.
  • the system is configured so that when the first base contacts the second base, an electrical switch is activated.
  • the system may be further configured so that the force (e.g., pressure, weight, etc.) used to activate the electrical switch can be detected and measured.
  • a capacitive sensing system may use multiple electrodes on opposite sides of a spacer layer. Measurements may be made while the electrodes are in various configurations within a sensing circuit.
  • the capacitive sensing system may combine or integrate weight sensing concepts with capacitive sensing concepts into a single system.
  • the integrated system may use weight/pressure information along with capacitive information to identify the occupant situation and produce a preferred classification.
  • assembly materials for the detection system may include any type of conductive material for the conductors (e.g., copper, conductive inks, conductive fabrics, etc.) and any suitable dielectric material for the plurality of nodes.
  • conductive material for the conductors e.g., copper, conductive inks, conductive fabrics, etc.
  • dielectric material for the plurality of nodes.
  • the occupant detection system may be incorporated into a sensing mat or pad located in a vehicle seat.
  • the system may be integrated into other components such as, for example, a vehicle steering wheel, vehicle instrument panel or other components.
  • the structure disclosed is not limited to use as an occupant detection system in a vehicle but also may be used as a force activated switch or capacitive sensing system in other environments.
  • an occupant detection system 100 may be located in a vehicle seat 20.
  • the seat may include a seat back 22 and a seat bottom 24.
  • the occupant detection system 100 is preferably located in the seat bottom 24 below a seat cover 26.
  • the occupant detection system 100 includes a sensor pad or mat 150, a controller 1 10 and a wire harness 120.
  • the harness 120 carries power and connectivity to the vehicles power system and communication bus.
  • the harness 120 is connected to the vehicle's electrical system(s) by a connector 125.
  • Fig. 2 is a top view of various components of the detection system 100.
  • the system includes an optional supporting lower foundation layer 155.
  • the lower foundation layer 155 may comprise a felt material and may be connected or mounted to a structural component of the vehicle seat such as, for example, the seat pan.
  • An upper foundation layer 157, preferably felt material, is positioned below spaced conductor layers and provides support for the controller 110.
  • the system 100 may include an electrical switch comprising a first base 160 and a second base 170.
  • the controller 110 includes a sensing circuit and/or processor that determines a measure of the force that is being applied to decrease the distance between the first and second bases 160 and 170.
  • the distance between the first and second base decreases the gap or spacer layer between the first and second base.
  • the conductor layer of the first base and the conductor layer of the second base are able to contact one another in the spaces between the plurality of nodes of dielectric material.
  • the electrical switch is activated.
  • the activation of the electrical switch indicates the presence of an occupant 10 in the vehicle seat 20.
  • the controller 110 may then provide data to the vehicle communication bus via the conductive wires contained in the wire harness 120, which is connected to the vehicle power and communication systems via a connector 125.
  • the capacitance between the bases may be monitored to determine a measure of the force on the seat 20, which may be associated with a person seated on the seat 20.
  • Each of the bases is connected to the controller 110 by electronic connectors 162, 172.
  • the connectors 162, 172 carry an electronic signal to each of the bases.
  • the electronic signals provided to the bases may be a time varying voltage signal such as, for example, a sinusoidal signal.
  • Each of the bases preferably includes a printed conductive material that forms the conductor, conductive trace or "wire" carrying the electronic signal through the base.
  • the controller 110 includes a sensing circuit and/or processor that determines a measure of the force that is being applied to decrease the distance between the first and second bases 160 and 170.
  • a change in the measure of capacitance may be used by the system 100 to indicate the presence of an occupant 10 in the vehicle seat 20.
  • the controller 110 may provide data to the vehicle communication bus via the conductive wires contained in the wire harness 120, which is connected to the vehicle power and communication systems via a connector 125.
  • Each of the first base and second base is preferably a single sheet of plastic type film material.
  • PET Polyethylene Terephthalate
  • other poly based films such as PEN, PC, PI or PEI may be used for the bases.
  • Each of the bases preferably includes a printed conductive material that forms the conductor, conductive trace or "wire" carrying an electronic signal through the conductor layer.
  • the conductor is an ink based material that may be printed onto the film.
  • the conductive ink may include, for example, Silver (Ag), Silver/Silver Chloride (Ag/AgCl), and/or Carbon.
  • the conductive ink is preferably printed in a pattern on the film base layer.
  • the first base 160 and the second base 170 are spaced apart or separated by a spacer layer (not labeled).
  • the spacer layer includes dielectric material.
  • the dielectric material is an ink based material that may be printed on the second base 170 in a pattern of nodes, dots or mounds 175.
  • the shape of the node may vary.
  • the node may be tapered with a base that has a larger area than the top portion.
  • a cylinder, cube, cone, prism, pyramid or other suitable shape may be used as a shape for the node.
  • each of the nodes 175 includes a top portion that contacts the first base 160.
  • the vehicle seat 20 e.g., the seat bottom 24
  • the distance between at least a portion of the first base 160 and the second base 170 of the system is allowed to decrease.
  • the dielectric material is arranged on top of the base 170 in a spaced apart pattern that creates a gap or spacer layer between the bases.
  • the partem of the nodes 175 could be any suitable shape, size and spacing due to the capabilities of the screening process.
  • the partem of the nodes could be easily adjusted to be suitable for different seat configurations.
  • the nodes could cover less than 20 percent of the surface area of the bases in order to allow for a sufficiently sized volume of the gap between the bases. Decreasing the percentage of the surface area covered by the nodes could make the occupant detection system more sensitive.
  • Fig. 7 shows a detailed view of an embodiment of the occupant detection system shown in Fig. 6.
  • each base 160 and 170 includes three different layers.
  • the base 160 may include a substrate layer 164.
  • a primary conductor layer 166 such as, for example, Ag may be printed on the substrate layer 164.
  • a secondary conductor layer 168 for example, Carbon based ink, may be printed on the primary conductor layer 166.
  • the base 170 may include a similar construction.
  • the base may include a substrate layer 174.
  • a primary conductor layer 176 such as, for example, Ag may be printed on the substrate layer 174.
  • a secondary conductor layer 178 for example, Carbon based ink, may be printed on the primary conductor layer 176.
  • the dielectric nodes 175 may be printed on the substrate layer 174 or on either of the secondary conductor layer 178 or the primary conductor layer 176. Alternatively, the dielectric nodes 175 may be printed on the substrate layer 164 or on either of the secondary conductor layer 168 or the primary conductor layer 166.
  • the cost and time for development of the occupant detection system can be greatly reduced due to the ease of construction and adjustment of the node position.
  • the nodes can be screen printed onto a substrate layer and/or a conductor layer, the space between the nodes can be varied and adjusted.
  • the nodes are substantially incompressible, thus for the purposes of analyzing the operation of the system, the nodes of dielectric material can be considered to be incompressible such that there is no requirement to analyze a spring constant for the spacer layer.
  • the spacer layer is essentially the gap between the nodes of dielectric material.
  • the ability to precisely locate the nodes of dielectric material allows the system to provide for more precise measurement of force when used as an electrical switch. Previous electrical switch systems typically used an adhesive with a hole. The hole essentially dictated the amount of force required to activate the switch.
  • the ability to precisely locate the nodes of dielectric material also allows the system to provide for more accurate detection of occupants on the seat when used as a capacitive sensing system.
  • the thickness of the entire sensing mat can potentially be reduced to 350 microns or less in order to make the overall system less intrusive in the seat structure.
  • the thickness of the spacer layer could be reduced to 5-8 microns, for example.
  • the system may be modified to accommodate different seat designs including different seat pan and/or seat spring configurations.
  • the detection system may be used in conjunction with a seat belt reminder system.
  • the detection system may be configured to determine that an occupant is located in the seat.
  • the controller in the detection system may then provide a signal to the seat belt reminder system indicating that an occupant is located in the vehicle seat.
  • the seat belt reminder system may receive input from both the detection system and a seat belt buckle sensor. If the system determines that there is an occupant in the seat and the seat belt is not buckled, a seat belt reminder (e.g., audible alarm, warning light, etc.) would be activated to alert the occupant.
  • a seat belt reminder e.g., audible alarm, warning light, etc.
  • the configuration of the detection system disclosed herein could be used for other applications as well. These applications include other automotive or vehicle applications as well as configurations in which a relatively low cost and low profile force activated electrical switch or capacitive sensing system could be employed.
  • an occupant detection may include an electrical switch and a controller.
  • the electrical switch may include a first base, a second base, and a plurality of nodes of dielectric material located on at least one of the first base and the second base.
  • the plurality of nodes extend away from the at least one of the first base and the second base to thereby create a gap between the first base and the second base.
  • the plurality of nodes are arranged in a partem on the at least one of the first base and the second base, the partem including space between adj acent nodes.
  • the switch is configured so that when a predetermined force is applied to the first base or the second base, the gap between the first base and the second base decreases to allow at least a portion of the first base to contact a portion of the second base in the space located between the plurality of nodes.
  • the controller is configured to output an occupant detection signal when the first base contacts the second base causing the switch to be activated.
  • the first base and the second base each include a substrate layer and a primary conductor layer.
  • each of the first base and the second base may include a flexible substrate layer, and the primary conductor layer may be printed on the flexible substrate layer.
  • each of the plurality of nodes may be tapered upward from a wider base area that is in contact with either the first base or the second base, and a top of each of the plurality of nodes contacts another of either the first base or the second base.
  • An embodiment of the electrical switch may include a first conductor screen printed on a first base, a second conductor screen printed on a second base, and a plurality of nodes of dielectric material located on at least one of the first base and the second base.
  • the switch is configured so that each of the plurality of nodes extend to create a gap between the first base and the second base.
  • the plurality of nodes may be arranged in a pattern on the at least one of the first base and the second base that provides spaces between each node.
  • the switch is configured so that when a predetermined force is applied to the first base or the second base, the gap between the first base and the second base decreases to allow at least a portion of the first conductor to contact a portion of the second conductor in the spaces between the plurality of nodes.
  • the electrical switch is activated.
  • Each of the first base and the second base may include a flexible substrate layer and wherein the first and second conductors are printed on the substrate layer.
  • the electrical switch may be configured to be positioned in the vehicle to detect a presence of an occupant.
  • Each of the nodes may include an ink printed on the substrate layer of at least one of the first base and the second base.
  • the first conductor, the second conductor and the plurality of nodes may be printed on a same side of the first base.
  • a sensing mat for use in a capacitive sensing system includes a first conductor, a second conductor and a spacer separating the conductors.
  • the sensing mat may include a sensing circuit operatively coupled to the first and second conductors and configured to sense the presence of an object using a measure of the capacitance between the first and second conductors.
  • the spacer may include a plurality of nodes of dielectric material, and wherein each of the nodes are separated from each of the other nodes to provide for space that allows the distance between at least a portion of the first and second conductors to decrease.
  • the sensing mat may be configured so that each of the nodes is tapered upward from the a wider base area in contact with a base layer.
  • the nodes may be arranged in a pattern.
  • the nodes may include ink and may be printed onto a base layer.
  • the mat may further include a first base layer and wherein the first conductor is located on the first base layer.
  • the nodes may be deposited on the first base layer.
  • the first conductor may include ink that is printed on the first base layer.
  • the first base layer may include a plastic film.
  • the noes may include an ink that is printed on the first base layer.
  • the nodes may be tapered from a base to a top and the base of the node contacts the first base layer and the top of the node contacts a second base layer that includes the second conductor so that when force is applied to the second base layer the distance between the first conductor and the second conductor decreases.
  • the first conductor and the nodes may be printed on the same side of the first base layer.
  • the term "coupled” means the joining of two components (electrical, mechanical, or magnetic) directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally defined as a single unitary body with one another or with the two components or the two components and any additional member being attached to one another. Such joining may be permanent in nature or alternatively may be removable or releasable in nature.
  • Exemplary embodiments may include program products comprising computer or machine-readable media for carrying or having machine-executable instructions or data structures stored thereon.
  • the occupant detection system may be computer driven.
  • Exemplary embodiments illustrated in the methods of the figures may be controlled by program products comprising computer or machine-readable media for carrying or having machine-executable instructions or data structures stored thereon.
  • Such computer or machine-readable media can be any available media which can be accessed by a general purpose or special purpose computer or other machine with a processor.
  • Computer or machine-executable instructions comprise, for example, instructions and data which cause a general purpose computer, special purpose computer, or special purpose processing machines to perform a certain function or group of functions.
  • Software implementations of the present invention could be accomplished with standard programming techniques with rule based logic and other logic to accomplish the various connection steps, processing steps, comparison steps and decision steps.
  • elements shown as integrally formed may be constructed of multiple parts or elements shown as multiple parts may be integrally formed, the operation of the assemblies may be reversed or otherwise varied, the length or width of the structures and/or members or connectors or other elements of the system may be varied, the nature or number of adjustment or attachment positions provided between the elements may be varied.
  • the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability. Accordingly, all such modifications are intended to be included within the scope of the present disclosure.
  • the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments.
  • Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the spirit of the present subject matter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Push-Button Switches (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)
  • Manufacture Of Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

Système de détection d'occupant comprenant un tapis de détection comprenant un conducteur qui est sérigraphié sur une première base et un conducteur qui est sérigraphié sur une seconde base. Le tapis de détection comprend une pluralité de nœuds de matériau diélectrique imprimés selon un motif espacé sur au moins l'une des bases. La première base est positionnée par-dessus la seconde base de telle sorte que, lorsqu'une force descendante est appliquée à la première base, la distance entre au moins une partie des conducteurs diminue. Le système comprend un dispositif de commande fonctionnellement relié aux conducteurs. Le dispositif de commande comprend un processeur ou circuit de détection conçu pour détecter la présence de l'occupant. La structure de tapis de détection peut être employée comme commutateur électrique activé par la force qui est activé lorsque les conducteurs sont en contact.
PCT/US2018/041666 2017-07-11 2018-07-11 Système de détection d'occupant, tapis de détection et commutateur électrique WO2019014363A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020501520A JP7237921B2 (ja) 2017-07-11 2018-07-11 乗員検知システム、検出マットおよび電気スイッチ
CN201880057236.5A CN111051146B (zh) 2017-07-11 2018-07-11 乘员检测系统、感测垫和电开关

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15/646,841 US10330813B2 (en) 2017-07-11 2017-07-11 Occupant detection system
US15/646,841 2017-07-11
US15/989,960 2018-05-25
US15/989,960 US20190362911A1 (en) 2018-05-25 2018-05-25 Force activated electrical switch

Publications (1)

Publication Number Publication Date
WO2019014363A1 true WO2019014363A1 (fr) 2019-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/041666 WO2019014363A1 (fr) 2017-07-11 2018-07-11 Système de détection d'occupant, tapis de détection et commutateur électrique

Country Status (3)

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JP (1) JP7237921B2 (fr)
CN (1) CN111051146B (fr)
WO (1) WO2019014363A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11190441B2 (en) 2017-07-12 2021-11-30 Micron Technology, Inc. System for optimizing routing of communication between devices and resource reallocation in a network

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5401922A (en) * 1993-02-22 1995-03-28 Illinois Tool Works Inc. Membrane switch
US20020094660A1 (en) * 2000-09-22 2002-07-18 Getz Catherine A. Spacer elements for interactive information devices and method for making same
US20070144882A1 (en) * 2002-12-09 2007-06-28 Werner Bieck Foil-type switching element with multi-layered carrier foil
KR20100113376A (ko) * 2009-04-13 2010-10-21 현대모비스 주식회사 차량용 승객 감지장치
US20130192904A1 (en) * 2012-01-26 2013-08-01 Delphi Technologies, Inc. Occupant detection sensor assembly with integrated fasteners

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138321A (ja) * 1984-12-10 1986-06-25 Sharp Corp 情報表示入力装置
US5878620A (en) * 1997-01-23 1999-03-09 Schlege Systems, Inc. Conductive fabric sensor for vehicle seats
JP2002326554A (ja) * 2001-05-01 2002-11-12 Fujikura Ltd ハイブリッドセンサ及び着座検出システム
JP2003045274A (ja) * 2001-07-31 2003-02-14 Fujikura Ltd 着座センサ
EP1544048A1 (fr) * 2003-12-17 2005-06-22 IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. Dispositif de classification d'occupation d'un siege de vehicule
US20060196281A1 (en) * 2005-03-02 2006-09-07 Delphi Technologies, Inc. Capacitive load cell apparatus having a non-planar nonconductive elastomeric dielectric
JP5748274B2 (ja) * 2011-07-08 2015-07-15 株式会社ワコム 位置検出センサ、位置検出装置および位置検出方法
TWI588845B (zh) * 2011-12-01 2017-06-21 創為精密材料股份有限公司 四線電阻式觸控面板用導電基板結構及其製作方法
CN105865667B (zh) * 2016-05-19 2018-06-01 北京印刷学院 基于微结构化介电层的电容式柔性压力传感器及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5401922A (en) * 1993-02-22 1995-03-28 Illinois Tool Works Inc. Membrane switch
US20020094660A1 (en) * 2000-09-22 2002-07-18 Getz Catherine A. Spacer elements for interactive information devices and method for making same
US20070144882A1 (en) * 2002-12-09 2007-06-28 Werner Bieck Foil-type switching element with multi-layered carrier foil
KR20100113376A (ko) * 2009-04-13 2010-10-21 현대모비스 주식회사 차량용 승객 감지장치
US20130192904A1 (en) * 2012-01-26 2013-08-01 Delphi Technologies, Inc. Occupant detection sensor assembly with integrated fasteners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11190441B2 (en) 2017-07-12 2021-11-30 Micron Technology, Inc. System for optimizing routing of communication between devices and resource reallocation in a network

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