US5089963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shifting control for automatic power transmission with learning shifting pattern model and selecting shifting pattern model from closed vehicular driving pattern
Assignee: Nissan Motor Co Ltd
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Filing: 1989-07-06
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Granted: 1992-02-18
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Expires: 2009-07-06
Abstract
Abstract A transmission gear shifting control system is selective of gear ratio of an automotive automatic power transmission. The control system employes a strategy of learning of driving condition in order to select one of a plurality of vehicle driving pattern so as to adapt to the vehicular driving condition and the driver's desire, by means of neuron computer. The system monitors a plurality of vehicle driving parameters and storing driving pattern data in an associative storage for forming stored driving pattern. The driving pattern data is stored in terms of relevant one of transmission gear shifting patterns so that the transmission gear shifting pattern can be selected in response to entry of the stored relevant driving pattern. The control system is further operable for associatively recollecting one of driving pattern on the basis of the monitored driving parameters and stored driving patterns.
Inventors
- 👤 Hiroshi Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:39
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; F16H59/00; F16H59/02; F16H59/08; F16H2059/082; F16H2059/086; F16H2061/0075; F16H2061/0081; F16H2061/0084; F16H2061/0087; F16H2061/0096; Y; Y10; Y10S; Y10S706/00; Y10S706/90; Y10S706/902; Y10S706/903; Y10S706/905
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
315 words
A control system for controlling transmission gear shifting for an automatic transmission of an automotive vehicle, said control system comprising: first means for monitoring a plurality of vehicle driving parameters to provide signals indicative of parameter data representing types and values of monitored vehicle driving parameters; second means for shifting a gear ratio of said automatic transmission in one of first and second gear shift modes according to first and second shift schedule maps respectively; third means for manually switching between said first and second gear shift modes; fourth means, including a matrix provided with a plurality of memory addresses which are variable from first to second address values in response to input of said parameter data, said fourth means being responsive to signals from said first and third means for storing parameter data in corresponding addresses according to types and values of parameter data to provide a data pattern which represents one of said first and second gear shift modes and for determining relations between first and second address values of adjacent addresses which include variables to which a preselected value is added when address values between adjacent addresses are the same and from which said preselected value is subtracted when address values between adjacent addresses are different from each other; fifth means responsive to signals from said first means indicative of vehicle driving parameters to input parameter data thereof to corresponding addresses for modifying each address value based on magnitudes of variables between adjacent addresses determined by said fourth means to provide a data pattern corresponding to a data pattern stored in addresses provided by said fourth means to determine a corresponding one of said first and second gear shift modes and for providing a signal indicative thereof; and sixth means associated with said second means for changing between said first and second shift modes based on said signal from said fifth means.
Claim 2
Dependent Claim
315 words
A control system for controlling transmission gear shifting for an automatic transmission of an automotive vehicle, said control system comprising: first means for monitoring a plurality of vehicle driving parameters to provide signals indicative of parameter data representing types and values of monitored vehicle driving parameters; second means for shifting a gear ratio of said automatic transmission in one of first and second gear shift modes according to first and second shift schedule maps respectively; third means for manually switching between said first and second gear shift modes; fourth means, including a matrix provided with a plurality of memory addresses which are variable from first to second address values in response to input of said parameter data, said fourth means being responsive to signals from said first and third means for storing parameter data in corresponding addresses according to types and values of parameter data to provide a data pattern which represents one of said first and second gear shift modes and for determining relations between first and second address values of adjacent addresses which include variables to which a preselected value is added when address values between adjacent addresses are the same and from which said preselected value is subtracted when address values between adjacent addresses are different from each other; fifth means responsive to signals from said first means indicative of vehicle driving parameters to input parameter data thereof to corresponding addresses for modifying each address value based on magnitudes of variables between adjacent addresses determined by said fourth means to provide a data pattern corresponding to a data pattern stored in addresses provided by said fourth means to determine a corresponding one of said first and second gear shift modes and for providing a signal indicative thereof; and sixth means associated with said second means for changing between said first and second shift modes based on said signal from said fifth means.
Claim 3
Dependent Claim
64 words
A control system as set forth in claim 1, wherein said fifth means is responsive to a positive value of a variable representing a relation relative to an adjacent address to change an address value to the same value as stored in said adjacent address and responsive to a negative value to change said address value to a value different from said adjacent address.
Claim 4
Dependent Claim
37 words
A control system as set forth in claim 1, wherein said first means monitors a steering angular position, a throttle valve angular position, a vehicle speed, and an engine revolution speed and provides parameter data representative thereof.
Claim 5
Dependent Claim
67 words
A control system as set forth in claim 2, wherein said fourth means stores parameter data at preselected times to provide a plurality of data patterns, said fifth means modifying address values of parameter data of currently monitored vehicle driving parameters based on corresponding relations determined by said fourth means to provide a data pattern corresponding to one of the data patterns provided by said fourth means.
Claim 6
Dependent Claim
28 words
A control system as set forth in claim 3, wherein said first means further monitors a noise level in a vehicular cabin and provides parameter data indicative thereof.
Claim 7
Dependent Claim
30 words
A control system as set forth in claim 4, further comprising seventh means for selectively disenabling operation of said fifth means and for effecting operation of said fourth means repeatedly.
Claim 8
Dependent Claim
217 words
A control system for controlling transmission gear shifting for an automatic transmission of an automotive vehicle, said control system comprising: first means for monitoring a plurality of vehicle driving parameters to provide signals indicative of parameter data representing types and values of monitored vehicle driving parameters; second means for shifting a gear ratio of said automatic transmission in one of first and second gear shift modes according to first and second shift schedule maps respectively; third means for manually switching between said first and second gear shift modes; fourth means including an associatron system which is responsive to signals from said first means for storing a preselected number of data patterns in memory addresses which are defined by types and values of parameter data, said associatron system being responsive to a signal from said first means after storing said preselected number of data patterns to provide a data pattern stored in memory addresses which is the most similar to a data pattern defined by parameter data currently provided by said first means to determine a corresponding one of said first and second gear shift modes and for providing a signal indicative thereof; and fifth means associated with said second means for changing between said first and second shift modes based on said signal from said fourth means.
Claim 9
Dependent Claim
217 words
A control system for controlling transmission gear shifting for an automatic transmission of an automotive vehicle, said control system comprising: first means for monitoring a plurality of vehicle driving parameters to provide signals indicative of parameter data representing types and values of monitored vehicle driving parameters; second means for shifting a gear ratio of said automatic transmission in one of first and second gear shift modes according to first and second shift schedule maps respectively; third means for manually switching between said first and second gear shift modes; fourth means including an associatron system which is responsive to signals from said first means for storing a preselected number of data patterns in memory addresses which are defined by types and values of parameter data, said associatron system being responsive to a signal from said first means after storing said preselected number of data patterns to provide a data pattern stored in memory addresses which is the most similar to a data pattern defined by parameter data currently provided by said first means to determine a corresponding one of said first and second gear shift modes and for providing a signal indicative thereof; and fifth means associated with said second means for changing between said first and second shift modes based on said signal from said fourth means.
Claim 10
Dependent Claim
58 words
A control system as set forth in claim 7, further comprising sixth means for selectively disenabling operation to provide a data pattern in memory addresses which is the most similar to a data pattern defined by parameter data currently provided by said first means and for effecting operation to store said data pattern in said memory addresses repeatedly.
Claim 11
Dependent Claim
37 words
A control system as set forth in claim 7, wherein said first means monitors a steering angular position, a throttle valve angular position, a vehicle speed, and an engine revolution speed and provides parameter data representative thereof.
Claim 12
Dependent Claim
28 words
A control system as set forth in claim 7, wherein said first means further monitors a noise level in a vehicular cabin and provides parameter data indicative thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |