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US5099428A Expired / Lapsed US ⏱️ 0.0 years remaining

Shifting control system for automotive automatic power transmission with neuron computer with refined data sampling and shifting pattern recollection characteristics

Assignee: Nissan Motor Co Ltd
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Filing: 1990-01-09
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Granted: 1992-03-24
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Expires: 2010-01-09
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Abstract

Abstract A shift control system for an automatic power transmission incorporates a storage means, responsive to an entered shifting demand, for temporarily storing instantaneous preselected shift control parameter data relative to the entered shifting demand. The control system also includes means for detecting the vehicular driving condition where no shifting demand may occur, for updating driving pattern data which is used for recollection of a driving pattern corresponding to or approximately corresponding to one of a shifting pattern or a schedule so that updating of the driving pattern data may not interfere with recollection of the driving pattern to enable appropriate selection of the transmission speed ratio at any vehicle driving condition.

Inventors

  • 👤 Hiroshi Takahashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 03:37
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0202; F16H61/0204; F16H61/0213; B; B60; B60W; B60W50/00; B60W2050/0001; B60W2050/0043; B60W2050/0057; F16H2061/0075; F16H2061/0081; F16H2061/0084; Y; Y10; Y10S; Y10S706/00; Y10S706/90

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 197 words
In an automotive vehicle: an automatic transmission shiftable in speed ratios; means for detecting a plurality of predetermined parameters related to driving conditions in which said automotive vehicle is involved and generating a plurality of output signals indicative of said plurality of predetermined parameters detected, respectively; means for modifying some of said plurality of output signals and generating modified output signals; switch means manually operable by a driver of said automotive vehicle; a programmable computer based control unit operatively coupled with said detecting means, said modifying means and said switch means, said programmable computer based control unit being operative according to associatron logic or neuron logic and including means for forming driving pattern data out of said plurality of output signals and said modified output signals and storing said driving pattern data correlated to an output of said switch means; means for updating said driving pattern data under a predetermined condition of said automotive vehicle; and means for recollecting said driving pattern data upon receiving said output signals and said modified output signals which generally represent said driving pattern data; and means responsive to said driving pattern data recollected for effecting shift control of said automatic transmission.
Claim 2
Dependent Claim 197 words
In an automotive vehicle: an automatic transmission shiftable in speed ratios; means for detecting a plurality of predetermined parameters related to driving conditions in which said automotive vehicle is involved and generating a plurality of output signals indicative of said plurality of predetermined parameters detected, respectively; means for modifying some of said plurality of output signals and generating modified output signals; switch means manually operable by a driver of said automotive vehicle; a programmable computer based control unit operatively coupled with said detecting means, said modifying means and said switch means, said programmable computer based control unit being operative according to associatron logic or neuron logic and including means for forming driving pattern data out of said plurality of output signals and said modified output signals and storing said driving pattern data correlated to an output of said switch means; means for updating said driving pattern data under a predetermined condition of said automotive vehicle; and means for recollecting said driving pattern data upon receiving said output signals and said modified output signals which generally represent said driving pattern data; and means responsive to said driving pattern data recollected for effecting shift control of said automatic transmission.
Claim 3
Dependent Claim 24 words
An automotive vehicle as claimed in claim 1, wherein under said predetermined condition of said automotive vehicle, said automotive vehicle is at a standstill.
Claim 4
Dependent Claim 38 words
An automotive vehicle as claimed in claim 2, wherein said programmable computer based control unit includes a matrix including a plurality of rows of neurons, said rows corresponding to said output signals and said modified output signals, respectively.

References Cited (Backward Citations)

US4774677A Cited
US4584906A Cited
US4777585A Cited
US4809175A Cited
US4841815A Cited
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US4930079A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-03-24 1995-09-23 1996-03-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-03-24 1999-09-23 2000-03-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-03-24 2003-09-23 2004-03-24 $7700.00 Window Closed / Lapsed

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