Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2005-01-04
2005-01-04
Black, Thomas C. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S051000, C477S037000, C477S034000, C477S046000, C477S068000, C475S068000, C475S198000, C307S149000, C307S152000
Reexamination Certificate
active
06839617
ABSTRACT:
Operating range of feedback in CVT ratio control has been extended by use of stabilized values as an actual value of CVT ratio. The actual value of CVT ratio is derived from first and second pulse train signals provided by input and output speed sensors. Updating of rotational speed of the input member is repeated at intervals governed by the first pulse train. Updating of rotational speed of the output member is repeated at intervals governed by the second pulse train. Updating of an old value of a ratio between the latest value of the rotational speed of the input member and the latest value of the rotational speed of the output member to a new value thereof is repeated each time immediately after the rotational speeds of the input and output members have been updated since the latest updating of an old value of the ratio.
REFERENCES:
patent: 4945483 (1990-07-01), Tokoro
patent: 4999774 (1991-03-01), Tokoro et al.
patent: 5980420 (1999-11-01), Sakamoto et al.
patent: 6272414 (2001-08-01), Takahashi et al.
patent: 6454676 (2002-09-01), Date et al.
patent: 20020028722 (2002-03-01), Sakai et al.
patent: 20020161503 (2002-10-01), Joe et al.
patent: 20030105572 (2003-06-01), Joe et al.
patent: 2000-283285 (2000-10-01), None
Joe Shin-ichiro
Kawabe Taketoshi
Mensler Michel
Black Thomas C.
Foley & Lardner LLP
Hernandez Olga
Nissan Motor Co,. Ltd.
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