Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2005-03-01
2008-08-19
Wolfe, Jr., Willis R. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C073S116070, C701S107000
Reexamination Certificate
active
07415351
ABSTRACT:
The present invention relates to a method for detecting an angular position signal representing the rotary motion of a rotating part of an internal-combustion engine. The internal-combustion engine includes at least one combustion chamber. In addition, a speed sensor of the type mentioned initially is provided, the speed sensor outputting a rotation-measurement signal representing the rotary motion of a sensing wheel connected with the rotating part. At least one pressure sensor is also provided that outputs a pressure signal representing the pressure in a combustion chamber. The method according to the present invention has the following steps: Detect the pressure signal, detect the rotation-measurement signal, calculate a correction quantity that is a function, at the least, of the detected pressure signal and rotation-measurement signal, and determine the angular position signal by linking the detected rotation-measurement signal with the correction quantity. The core of the present invention is the identification and very good compensation of the sensing wheel error by performing a joint evaluation of the rotational-speed signal and the compression chamber pressure of one or more indicated cylinders.
REFERENCES:
patent: 5499607 (1996-03-01), Tomisawa
patent: 5611311 (1997-03-01), Tomisawa
patent: 6654680 (2003-11-01), Shimada et al.
patent: 197 33 958 (1999-02-01), None
patent: 101 07 892 (2001-09-01), None
patent: 100 17 107 (2001-10-01), None
patent: 101 13 194 (2002-09-01), None
patent: 03047471 (1991-02-01), None
patent: 06033822 (1994-02-01), None
patent: 6-217069 (1994-08-01), None
patent: 2001-263153 (2001-09-01), None
patent: 01/77692 (2001-10-01), None
patent: 03/062620 (2003-07-01), None
Breuninger Joerg
Fischer Wolfgang
Hamedovic Haris
Raichle Franz
Hoang Johnny H.
Robert & Bosch GmbH
Striker Michael J.
Wolfe, Jr. Willis R.
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