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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Magnetic position sensor having a variable width magnet mounted into a rotating disk and a hall effect sensor

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01B-007/30   
미국특허분류(USC) 32/420.72 ; 32/420.721 ; 32/420.725 ; 32/420.722
출원번호 US-0092782 (1998-06-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Bourgeois
인용정보 피인용 횟수 : 55  인용 특허 : 13
초록
▼

A linear analog rotary 360 degree magnetic position sensor assembly for sensing the position of rotating objects. A magnet having a varying width is mounted to a magnet disc. A flux return disc is mounted on a shaft opposed to the magnet disc. The magnet generates a magnetic field in an air gap between the discs. A magnetic field sensor such as a hall effect sensor is positioned in the gap and operates to provide an output signal representative of the magnetic field density as the shaft and disc rotate. The output signal changes magnitude in relation to ...

대표
청구항
▼

[ What is claimed and desired to be secured by Letters Patent is:] [1.] A rotary position sensor, comprising:a) a magnetically permeable pole assembly having an air gap, the pole assembly including:a1) a first disc:a2) a second disc having a groove and a magnet mounted in the groove; anda3) a flange connecting the first and second discs, the flange located between the first and second discs, the flange magnetically coupling the first and second discs, the first and second discs spaced apart and thus defining the airgap therebetween, the first and second ...

이 특허에 인용된 특허 (13)

  1. Tomczak Lawrence W. (Rochester MI) Osladil Anthony J. (Wyandotte MI). Angular position transducer including permanent magnets and Hall Effect device. USP1986024570118.
  2. Bisenius Jean-Claude (Darmstadt DEX) Decker Heinz (Vaihingen/Enz DEX) Schleupen Richard (Ingersheim DEX). Device for controlling an internal combustion engine. USP1988054744343.
  3. Schleupen Richard (Ingersheim DEX). Device for controlling internal combustion engine. USP1989074848298.
  4. Decker Heinz (Vaihingen/Enz DEX) Schleupen Richard (Ingersheim DEX). Device for controlling internal combustion engines. USP1988024726338.
  5. McCurley Jeffrey L. ; White James E. ; Guthrie Mike. Field strength position sensor with improved bearing tolerance in a reduced space. USP1998015712561.
  6. Gasiunas Donatas V. (Carmel NY). Hall effect encoder apparatus. USP1990074942394.
  7. Jaffe Wolfgang (Roselle Park NJ) Rogan Bruce R. (Somerville NJ). Hall effect potentiometer. USP1981104293837.
  8. Ushiyama Shigeyuki (Yamanashi JPX). Magnetic absolute position encoder with an undulating track. USP1992055115239.
  9. Allwine ; Jr. Elmer C. (450 Harvard Ave. No. 9-C Santa Clara CA 95051). Magnetic encoder with composite magnet. USP1994055313159.
  10. Allwine ; Jr. Elmer C. (450 Harvard Ave. N. 9-C Santa Clara CA 95051). Multi-pole composite magnet used in a magnetic encoder. USP1993115258735.
  11. Sakakibara Shinichi (Handa JPX) Matsubara Mamoru (Toyoake JPX). Rotational angle detecting sensor having a plurality of magnetoresistive elements located in a uniform magnetic field. USP1991105055781.
  12. Wu W. T. (Madison WI). Rotational position sensor with a Hall effect device and shaped magnet. USP1992105159268.
  13. Smith Larry B. (Phoenix AZ). Tachometer for measuring speed and direction of shaft rotation with a single sensing element. USP1979024142153.

이 특허를 인용한 특허 피인용횟수: 55

  1. Charles Albert Spellman. Absolute angle sensor for multi-turn shaft. USP2002126492807.
  2. Tsuchiya, Hiroyuki; Konishi, Ippei. Angle detecting device and servo apparatus using same. USP2017099770668.
  3. Spicer,Gary J.; Staniewicz,Zbyslaw; Cleland,Terry P.. Angular position sensor-based engine controller system. USP2007037188021.
  4. Schmitz Geoffrey W.. Apparatus for position measurement and a system and a method for using the same. USP2001076253460.
  5. Masson, Gérald; Dorge, Thierry. Bidirectional magnetic position sensor having field rotation. USP2015038970210.
  6. Hu, Zheng; Lavoie, Erick Michael. Centerline method for trailer hitch angle detection. USP20181210155478.
  7. Hu, Zheng; Joyce, John P.. Drawbar scan solution for locating trailer hitch point. USP2018049934572.
  8. Cude, Rodney P.. Electromagnetic inductive drive and method of making the same. USP2003056570834.
  9. Miyajima, Tooru; Ayuzawa, Toshiaki; Shoji, Yoshihiro. Encoder with gear mechanism and optical encoder device. USP2014118878125.
  10. Lavoie, Erick Michael; Mattern, Donald Jacob. Enhanced yaw rate trailer angle detection initialization. USP20181010106193.
  11. Hu, Zheng; Joyce, John P.. Hitch angle detection for trailer backup assist system. USP2017049610975.
  12. Hu, Zheng; Joyce, John P.; Recker, Darrel Alan. Hitch angle detection for trailer backup assist system. USP2017109796228.
  13. Hu, Zheng; Lavoie, Erick Michael. Hitch angle detection for trailer backup assist system using multiple imaging devices. USP20180710011228.
  14. Crossman, John. Hitch angle sensor assembly. USP2016129513103.
  15. Lavoie, Erick Michael. Hitch angle warning system and method. USP2016129517668.
  16. Buss, Brian George; Hafner, Michael. Inertial reference for TBA speed limiting. USP20190310222804.
  17. Uehira, Kiyotaka. Input device. USP2005076919522.
  18. Odaka, Shunichi; Kariya, Isao. Magnetic encoder having thin detection surface. USP2014108860406.
  19. Andrikowich, Thomas George; Maguire, Stephen J.; Ruwe, Matthew Neil; Yamkovoy, Paul; Salame, Michael. Magnetic pivot sensor for headset microphone. USP20190410264341.
  20. Poppe, Carl H.; Yu, George T.. Master keyed combination lock. USP2012018087275.
  21. Kiiveri, Antti. Method for protecting electronic device, and electronic device. USP2012108296575.
  22. Hu, Zheng; Lavoie, Erick Michael. Multi-stage solution for trailer hitch angle initialization. USP2017119827818.
  23. Babin, Brian G.. Non-contacting sensor assembly. USP2014098823366.
  24. Foster, Christopher A.; Strosser, Richard P.. Off-road vehicle with redundant non-contact multi-revolution angle sensor. USP2013028380397.
  25. Davidson, Morgan; Wassom, Steven R.. Proximity-leveraging, transverse displacement sensor apparatus and method. USP2009117616326.
  26. Hino,Haruyoshi; Murota,Keiko; Shirazawa,Hideki; Terada,Junji; Ono,Tomohiro. Relative position detection and control device for motor vehicle. USP2007067231904.
  27. Hino, Haruyoshi; Murota, Keiko; Shirazawa, Hideki; Terada, Junji; Ono, Tomohiro. Relative position detection device for motor vehicle. USP2010037675283.
  28. Wolschlager, Kevin C.; Newman, Robert L.; Cook, Kim D.. Rotary position sensor. USP2016039297637.
  29. Wolschlager, Kevin C.; Newman, Robert L.; Cook, Kim D.. Rotary position sensor. USP2013058450999.
  30. Wolschlager, Kevin C.; Newman, Robert L.; Cook, Kim D.. Rotary position sensor. USP2014048692544.
  31. Kottmyer, Daniel L.; Kreger, Scott P.. Sense magnet assembly including multiple annular portions with alternating magnetic poles. USP2012018089271.
  32. Lavoie, Erick Michael. Sensor failure mitigation system and mode management. USP2017019533683.
  33. Johnson,Theodis. Serially connected magnet and hall effect position sensor with air gaps between magnetic poles. USP2006117135857.
  34. Bulgrien, Garth H.; Hansen, Charles A.. Shuttle strategy for vehicles with electronically controlled transmissions and engines. USP2014068762013.
  35. Lavoie, Erick Michael. System and method for determining a hitch angle offset. USP2016099434414.
  36. Kyrtsos, Christos; Pilutti, Thomas Edward; Lavoie, Erick Michael. System and method for hitch angle detection. USP2017109804022.
  37. Lavoie, Erick Michael; Kyrtsos, Christos. System for determining hitch angle. USP2017069683848.
  38. McDonald, Kenneth; Thomas, James; Laycock, Kevin. Target magnet assembly for a sensor used with a steering gear. USP2013038390276.
  39. Lavoie, Erick Michael. Target monitoring system and method. USP20190210196088.
  40. Lavoie, Erick Michael. Target monitoring system with lens cleaning device. USP2017039607242.
  41. Hu, Zheng. Template matching solution for locating trailer hitch point. USP2017109798953.
  42. McDonald, Kenneth; Thomas, James; Reimer, Lawrence B.. Three-piece torque sensor assembly. USP2013058448528.
  43. Lavoie, Erick Michael; Trombley, Roger Arnold; Yu, Hai. Topographical integration for trailer backup assist system. USP2017049616923.
  44. Raad, Joseph M.; Mattern, Donald Jacob. Trailer backup assist system with adaptive steering angle limits. USP2016129522699.
  45. Ghneim, Maher; Lavoie, Erick Michael. Trailer backup assist system with target management. USP2017129836060.
  46. Lavoie, Erick Michael; Raad, Joseph M.; Mattern, Donald Jacob. Trailer backup offset determination. USP2018049937953.
  47. Wallat, Jeffrey; Van Wiemeersch, John Robert; Schondorf, Steven Yellin; Bennie, Brian; Prodin, Timothy; Wolski, Brian. Trailer lane departure warning system. USP2016069373044.
  48. Raad, Joseph M.; Kyrtsos, Christos; Daavettila, Tyler; Mattern, Donald Jacob; Lavoie, Erick Michael. Trailer length and hitch angle bias estimation. USP20180610005492.
  49. Lavoie, Erick Michael; Kyrtsos, Christos. Trailer length estimation in hitch angle applications. USP2016059335163.
  50. Lavoie, Erick Michael. Trailer monitoring system and method. USP20180710017115.
  51. Lavoie, Erick Michael. Trailer sway warning system and method. USP2018059963004.
  52. Hu, Zheng; Lavoie, Erick Michael. Trailer wheel targetless trailer angle detection. USP20180810046800.
  53. Schmidt,Jeremy. Two-pole magnet wheel increment position sensing in an actuator. USP2009017477052.
  54. Greenwood, Jeremy John; Nicholls, Stephen; Crawford, Andrew Stephen Bell. Vehicle trailer angle detection system and method. USP2018059971943.
  55. Greenwood, Jeremy John; Nicholls, Stephen; Crawford, Andrew Stephen Bell. Vehicle trailer angle detection system and method. USP2017029566911.

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