Keyless entry assembly having capacitance sensor operative for detecting objects
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05B-019/04
G05D-001/00
B60R-025/20
B60R-025/23
E05F-015/00
출원번호
US-0942294
(2010-11-09)
등록번호
US-9199608
(2015-12-01)
발명자
/ 주소
Newman, Todd R.
Washeleski, John M.
Blank, Andrew E.
Shank, David W.
출원인 / 주소
UUSI, LLC
대리인 / 주소
Howard & Howard Attorneys PLLC
인용정보
피인용 횟수 :
11인용 특허 :
53
초록▼
A keyless entry assembly includes a carrier with an electrical conductor thereon, a light pipe having an indicator, and a controller. The light pipe is connected to the carrier such that the indicator and conductor are in alignment. The light pipe is operable for receiving light to illuminate the in
A keyless entry assembly includes a carrier with an electrical conductor thereon, a light pipe having an indicator, and a controller. The light pipe is connected to the carrier such that the indicator and conductor are in alignment. The light pipe is operable for receiving light to illuminate the indicator. The carrier with the light pipe connected thereto is mountable to a user accessible portion of a vehicle. The conductor capacitively couples to an electrically conductive object proximal to the conductor while the conductor is driven with an electrical charge such that capacitance of the conductor changes due to the conductor capacitively coupling with the object. The controller is operable for driving the conductor with the electrical charge, measuring the conductor capacitance to determine whether an electrically conductive object is proximal to the conductor, and controlling a vehicle operation as a function of the object being proximal to the conductor.
대표청구항▼
1. A keyless entry assembly, comprising: a sensor assembly including an electrically non-conductive carrier comprising a clear film adapted to be applied to a window and a plurality of sensors electrically isolated from each other and applied to the carrier;an illumination assembly attached to the s
1. A keyless entry assembly, comprising: a sensor assembly including an electrically non-conductive carrier comprising a clear film adapted to be applied to a window and a plurality of sensors electrically isolated from each other and applied to the carrier;an illumination assembly attached to the sensor assembly, the illumination assembly including a body portion capable of conducting light and a plurality of indicators on the body portion including graphic markings that corresponds with the sensors to locate a position of the sensors and to identify a function assigned therewith;each of the sensors being configured to capacitively couple to an electrically conductive object proximal to one of the indicators associated with one of the sensors while the one of the sensors is driven with an electrical charge such that capacitance of the one of the sensors changes due to the one of the sensors capacitively coupling with the object, the indicators being visible on the window; anda controller operable for driving the sensors with the electrical charge,measuring the capacitance of the sensors,determining which one of the sensors is capacitively coupled to an electrically conductive object based on the measured capacitance, andcontrolling an operation as a function of an electrically conductive object being proximal to the determined one of the sensors. 2. The assembly of claim 1 wherein the sensors comprise Indium Tin Oxide (ITO). 3. The assembly of claim 1 wherein the sensors comprise a transparent conductive material. 4. The assembly of claim 1 wherein the sensors are translucent and situated relative to the associated indicators, respectively, such that light passing through the sensors illuminates the associated indicators. 5. The assembly of claim 1 wherein the carrier comprises a plastic film. 6. The assembly of claim 1 wherein the illumination assembly includes: a light source and a light pipe situated between the light source and at least one of the indicators, the light pipe receiving light from the light source and directing the light toward the at least one of the indicators to thereby illuminate the at least one of the indicators. 7. The assembly of claim 6 wherein the light pipe comprises a varying thickness along a portion of the light pipe that directs light toward the at least one of the indicators, the varying thickness being oriented relative to the light source and the at least one of the indicators to provide substantially uniform illumination of the at least one of the indicators. 8. The assembly of claim 6 wherein the at least one of the indicators is etched into the light pipe. 9. A keyless entry assembly, comprising: a carrier;a plurality of electrical conductors at least partially supported on the carrier;a light pipe assembly attached to the carrier, the light pipe assembly including a body portion capable of conducting light and a plurality of indicators on the body portion and associated with the conductors, respectively, wherein the conductors are each configured to capacitively couple to an electrically conductive object proximal to one of the indicators associated with the conductors while the conductors are driven with an electrical charge such that capacitance of one of the conductors changes due to the one of the conductors capacitively coupling with the object;the light pipe assembly including a light source directing light toward at least one of the indicators to thereby illuminate the at least one of the indicators; anda controller operable for driving the conductors with the electrical charge,measuring the capacitance of the conductors,determining which one of the conductors is capacitively coupled to an electrically conductive object based on the measured capacitance, andcontrolling an operation as a function of an electrically conductive object being proximal to the determined one of the conductors,wherein the at least one of the indicators is etched into the body portion at an oblique angle with respect to a direction of light received by the body portion. 10. The assembly of claim 6 wherein the indicators comprise a graphic marking configured to allow an individual to point to or touch for providing an indication of a desired operation. 11. The assembly of claim 6 wherein the body portion comprises a slot configured to at least partially receive a light emitting device for illuminating the at least one the indicators. 12. The assembly of claim 6 wherein the body portion is situated to direct light to the plurality of indicators. 13. The assembly of claim 1 wherein: the controller comprises a printed circuit board;the carrier includes at least one trace electrically connected to the conductors; andthe assembly comprises a connection strip including a conductive pad establishing an electrical connection between the printed circuit board and the trace. 14. The assembly of claim 11 comprising an electrically conductive compressible material between the conductive pad and the printed circuit board. 15. The assembly of claim 1 wherein: the controller comprises a printed circuit board; andthe carrier includes at least one trace electrically connected to the conductors and the printed circuit board. 16. The assembly of claim 15 comprising an electrically conductive compressible material between the trace and the printed circuit board. 17. The assembly of claim 1 wherein, the carrier is supported on at least one of a user accessible portion of the vehicle that comprises one of a window, a minor, a handle, or an emblem on the user accessible portion of the vehicle. 18. The assembly of claim 1 wherein, the operation includes at least one of changing a condition of a lock associated with a door, moving a window of a vehicle, locking a door of a vehicle, unlocking a door of a vehicle, and opening a trunk lid of a vehicle. 19. The assembly of claim 1, comprising: a sealed housing that is attachable to a window of a vehicle door, the controller being situated within the housing; anda harness within a protective covering, the harness having one portion that is coupled with the controller and another portion that is configured to be attached to a portion of the vehicle door. 20. The assembly of claim 1, wherein the indicators are associated with a plurality of different operations; andthe controller determines which of the different operations to control based on which of the conductors is capacitively coupled with the object. 21. The assembly of claim 1, wherein the each of the conductors is capacitively coupled with an object as the object approaches or touches the associated indicator.
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