Method for finding the angular acceleration of a drive shaft...

Details Method for finding the angular acceleration of a drive shaft... Method for finding the angular acceleration of a drive shaft...

2006-02-28

2006-02-28

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C073S116070

Reexamination Certificate

active

07006913

ABSTRACT:
Method for finding the angular acceleration of a drive shaft of an internal combustion engine by means of a gear wheel integral with said drive shaft; the method making provision to identify, in each complete revolution of the drive shaft, a number of angular measurement lines, to measure the time used by the drive shaft to pass over each angular measurement line using the signal supplied by the gear wheel, to add algebraically, to the time used by the drive shaft to pass over each angular measurement line, a corresponding correction coefficient that takes account of any asymmetries in the gear wheel, and to determine the value of angular acceleration of the drive shaft as a function of the time used by the drive shaft to pass over each angular measurement line; the value of the correction coefficients is determined in the course of an engine fuel cut-off phase.

REFERENCES:
patent: 4527531 (1985-07-01), Koyanagi et al.
patent: 5231966 (1993-08-01), Yoshida et al.
patent: 5428991 (1995-07-01), Klenk et al.
patent: 5528929 (1996-06-01), Ikebuchi
patent: 6062071 (2000-05-01), Henn et al.
patent: 195 44 720 (1997-03-01), None
patent: 196 22 042 (1997-12-01), None
patent: 198 04 327 (1999-08-01), None
patent: 0 849 581 (1998-06-01), None
English Translation of Abstract of DE 196 22 042 dated Dec. 4, 1997.
English Translation of Abstract of DE 195 44 720 dated Mar. 13, 1997.
English Translation of Abstract of DE 198 04 327 dated Aug. 5, 1999.

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