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Method and apparatus for diagnosing and isolating faulty sensors in a redundant sensor system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-011/00
출원번호 US-0688306 (1996-07-30)
발명자 / 주소
  • Nunneley John
  • Sugawara Hayato
출원인 / 주소
  • Hitachi America, Ltd.
대리인 / 주소
    Sideris
인용정보 피인용 횟수 : 39  인용 특허 : 0

초록

A sensor failure and detection apparatus and method for use in a redundant sensor system are disclosed. A control circuit disconnects reference power supplied to a sensor and then monitors the voltage decay output by the sensor. The monitored rate of voltage decay of the sensor is compared to the ex

대표청구항

[ We claim:] [1.] A sensor diagnostic apparatus for detecting faults, said sensor diagnostic apparatus coupled to a voltage source and comprising:a sensor means coupled to the voltage source and having an output signal proportional to a variable monitored by said sensor means;a switching means havin

이 특허를 인용한 특허 (39)

  1. Von Wendorff, Wilhard, Apparatus for monitoring the proper operation of components of an electrical system carrying out the same or mutually corresponding actions.
  2. Jonsson, Karl S.; Windstrup, Sonny, Automated load assessment device and method.
  3. Kumar, D V J Ravi; Srinivas, Theertham; Ghorpade, Gururaj, Background sensor diagnostic for multi-channel ADC.
  4. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Controlling operation of a safety critical application on an uncontrolled data processing device.
  5. Katrak, Kerfegar Khurshed; Fritz, Todd William; Zuppann, Richard Earl, Discrete sensor inputs.
  6. Jon K. Wallace ; Russell J. Lynch, Distributed vehicle safety system having fault protection.
  7. Kiribayashi, Shinichi; Otaka, Koji, Failure detection method and apparatus for sensor network.
  8. Alexander Randy ; Wadas David L. ; Wang Yei Dei, Fault detection system and method for solenoid controlled actuators of a transmission system.
  9. Diehl, William; Windstrup, Sonny; Jonsson, Karl, Home automation group selection by color.
  10. Berndt, Steffen; Schweizer, Martin; Lottholz, Stefan; Nitschke, Werner, Method and device for checking a sensor signal and for actuating a passenger protection means of a vehicle.
  11. Amoussouga, Eric; Thillot, Yves, Method for the preventative detection of failure in an apparatus, computer program, system and module for the preventative detection of failure in an apparatus.
  12. Carroll, Deanna L.; Zheng, Bing; Huang, Mary Y., Method of detecting and managing sensor fault for safety-critical road-wheel position in vehicle steer-by-wire systems.
  13. Hartrey,Timothy John, Methods and apparatus for determining the condition of a sensor and identifying the failure thereof.
  14. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  15. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  16. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  17. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  18. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  19. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  20. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  21. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  22. Bernstein, Daniel M.; Nekoomaram, Saeed; Sloan, Mark K., Methods and articles of manufacture for hosting a safety critical application on an uncontrolled data processing device.
  23. Immer, Christopher D.; Lane, John; Eckhoff, Anthony J.; Perotti, Jose M., Multi sensor transducer and weight factor.
  24. Jonsson, Karl, Networked device with power usage estimation.
  25. Jonsson, Karl, Networked device with power usage estimation.
  26. Diehl, William; Jonsson, Karl; Windstrup, Sonny, Networked light bulb with color wheel for configuration.
  27. Jonsson, Karl S.; Diehl, William; Lyons, Timothy; Manniche, Martin; Windstrup, Sonny, Power node for energy management.
  28. Jonsson, Karl; Diehl, William; Lyons, Timothy; Manniche, Martin; Windstrup, Sonny, Power node with network switch.
  29. Macbeth, Bruce F.; Finlay, Sr., David A.; Richards, Jeffrey C., Protective device with automated self-test.
  30. Niwa, Masahisa; Okada, Kunitaka; Hajek, Rudolf; Kutej, Jiri; Warneck, Timothy J., Sensor device and sensor interface.
  31. Katrak, Kerfegar Khurshed; Kodela, Naresh Kumar; Zuppann, Richard Earl; Pollack, Christopher; Manyala, John; Fritz, Todd William; Anderson, Ken R.; McKenzie, Ian Daniel, Shift rail transmission position sensing.
  32. Katrak, Kerfegar Khurshed, Shift rail transmission position sensing with a minimum number of sensors.
  33. Katrak, Kerfegar Khurshed; Kodela, Naresh Kumar; Zuppann, Richard Earl; Pollack, Christopher; Manyala, John; Fritz, Todd William; Anderson, Ken R.; McKenzie, Ian Daniel, Shift rail transmission position sensing with tolerance for sensor loss.
  34. Kumazawa,Hidehiko; Tanaka,Tatsuki, Short-circuit detecting circuit device.
  35. Bauerle, Paul A.; Stockbridge, John Norman; Aparicio, Jr., J. Oscar, System and method for calibration and fault detection of non-contact position sensor.
  36. Katrak, Kerfegar Khurshed, Ternary sensor inputs.
  37. Katrak, Kerfegar K., Transmission control module with multiple sensor inputs.
  38. Katrak, Kerfegar Khurshed; Hawarden, Jeffrey Philip; Lapointe, Steven Harvey; Metheny, Eric Allen; Fritz, Todd William; Vandervoort, John Kimmel, Transmission control module with valve control.
  39. Eid Bradley Franz ; Durkee Scott Robert ; Darwin Keith Patrick, Universal sensor interface system and method.
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