Title:
速度感知装置
Document Type and Number:
Japanese Patent JP2007500335
Kind Code:
A
Abstract:
A device for sensing the input shaft speed of an automotive automatic transmission that is driven by the engine through the fluid coupling of a torque converter. The speed sensor device includes circumferentially spaced markings about the transmission input shaft and a speed sensor that is placed at close proximity to the circumferentially spaced markings through a hole in the torque converter stator shaft. An electronic control unit (ECU) analyzes the sensor output signal and in the case of an active speed sensor it also functions as its power source. During vehicle operation, the transmission input shaft rotates the target wheel in front of the speed sensor causing modulation of its output signal. The electronic control unit analyzes the signal modulation and calculates the input shaft rotational speed. A variety of sensor/target-wheel options and sensor mounting techniques could be used depending on the application constraints.
Inventors:
Burns, James Jay
Denny, Wayne Buoy
Joki, Mark A
Lacroix, Mark Yee
Odeguard, Brian Thomas
Santos, Alfred John
Vanonys, Orestes Jay
Denny, Wayne Buoy
Joki, Mark A
Lacroix, Mark Yee
Odeguard, Brian Thomas
Santos, Alfred John
Vanonys, Orestes Jay
Application Number:
JP2006521310A
Publication Date:
January 11, 2007
Filing Date:
July 26, 2004
Export Citation:
Assignee:
Timken US Corporation
International Classes:
G01P3/481; F16H59/42; G01D5/245; G01K1/14; G01P1/02; G01P1/04; G01P3/487; G01P3/488
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroyuki Uchida
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroyuki Uchida