EP0391387A2
Expired / Lapsed
EP
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Driving condition recognition system for automotive vehicle and shift control system for automotive automatic power transmission utilizing the results of vehicular driving state recognition
Assignee: Hitachi Ltd
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Filing: 1990-04-04
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Granted: —
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Expires: 2010-04-04
Abstract
Abstract A driving condition recognition system includes data sampling means, respectively monitoring a plurality of preselected parameters associated with vehicular driving, such as a throttle valve open angle, and engine speed and so forth, for sampling vehicular drive condition associated parameter data within every predetermined period of time. The system also includes means for deriving a vehicle condition evaluating data on the basis of all of the sampled parameter data with respect to each of parameters to be monitored. The system further includes means for evaluating respective an evaluating function set with respect to each parameter for determining satisfying degree relative to the relevant evaluating function. The system further includes means for recognizing vehicle driving condition on the basis of satisfying degree of respective parameters.
Inventors
- 👤 Naoki Tomisawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 00:33
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0202; F16H61/0204; F16H61/0213; F16H59/00; B; B60; B60W; B60W50/00; B60W2050/0001; B60W2050/0043; B60W2050/0057; B60W2554/00; F16H59/02; F16H59/08; F16H2059/082; F16H2061/0075; F16H2061/0081; F16H2061/0096; F16H59/14; F16H59/24; F16H59/36; F16H59/44
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
123 words
A system for recognizing driving condition of an automotive vehicle, comprising: first means for monitoring a plurality of preselected parameters reflecting a vehicle driving condition and sampling parameter data of respective parameters with a given intervals; second means for processing sampled parameter data of each parameter for deriving a parameter associated evaluation data of the corresponding parameter; third means utilizing a plurality of evaluating functions respectively set with respect to the corresponding parameter, for deriving distribution of said parameter associated evaluation data over a plurality of predetermined value ranges respectively corresponding a plurality of vehicular driving modes to produce a distribution indicative data; and fourth means for processing the distribution indicative data of all parameters for deriving a vehicle driving condition indicative data.
Claim 2
Independent Claim
123 words
A system for recognizing driving condition of an automotive vehicle, comprising: first means for monitoring a plurality of preselected parameters reflecting a vehicle driving condition and sampling parameter data of respective parameters with a given intervals; second means for processing sampled parameter data of each parameter for deriving a parameter associated evaluation data of the corresponding parameter; third means utilizing a plurality of evaluating functions respectively set with respect to the corresponding parameter, for deriving distribution of said parameter associated evaluation data over a plurality of predetermined value ranges respectively corresponding a plurality of vehicular driving modes to produce a distribution indicative data; and fourth means for processing the distribution indicative data of all parameters for deriving a vehicle driving condition indicative data.
Claim 3
Dependent Claim
41 words
A system as set forth in claim 1, wherein said second means utilizes a plurality of preset parameter evaluating functions for deriving distribution of said parameter data over a plurality of predetermined value ranges respectively corresponding to a vehicular driving modes.
Claim 4
Dependent Claim
31 words
A system as set forth in claim 1, wherein said first means monitors at least a first parameter reflecting an engine load condition and a second parameter reflecting an engine speed.
Claim 5
Dependent Claim
61 words
A system as set forth in claim 1, wherein said evaluating function has a first value range of said parameter associated evaluation data, in which the function value is maintained constant at a predetermined maximum value and a second value range overlapping with another evaluating function, in which function value varies between said predetermined maximum value and a predetermined minimum value.
Claim 6
Dependent Claim
41 words
A system as set forth in claim 4, wherein said third means derives said function value with respect to each of said vehicular driving modes, which function value represents distribution of said parameter associated evaluation data over said vehicular driving modes.
Claim 7
Dependent Claim
37 words
A system as set forth in claim 5, wherein said third means integrates said function values derived with respect to each of individual parameter data for deriving a distribution indicative data of each of said driving modes.
Claim 8
Dependent Claim
40 words
A system is set forth in claim 6, wherein said fourth means is provided weighting factors for each driving modes and derives said vehicular driving condition indicative data on the basis of said distribution indicative data and said weighting factors.
Claim 9
Dependent Claim
33 words
A system as set forth in claim 7, wherein said fourth means performs weighting averaging operation of said distribution indicative data with said weighting factor for deriving said vehicular driving condition indicative data.
Claim 10
Dependent Claim
62 words
A system as set forth in claim 2, wherein said parameter evaluating function has a first value range of said parameter associated evaluation data, in which the function value is maintained constant at a predetermined maximum value and a second value range overlapping with another evaluating function, in which function value varies between said predetermined maximum value and a predetermined minimum value.
Claim 11
Dependent Claim
41 words
A system as set forth in claim 9, wherein said second means derives said function value with respect to each of said vehicular driving modes, which function value represents distribution of said parameter associated evaluation data over said vehicular driving modes.
Claim 12
Independent Claim
226 words
A system for controlling shifting of an automotive automatic power transmission comprising: a vehicle speed sensor for monitoring a vehicle speed for producing a vehicle speed data; a throttle angle sensor for monitoring a throttle valve angular position for producing a throttle angle data; a shift pattern selection means for selecting one of a plurality of transmission speed ratio shifting pattern respectively adapted to vehicular driving modes, said shift pattern selection means being associated with a driving condition recognizing means which includes: first means for monitoring a plurality of preselected parameters reflecting a vehicle driving condition and sampling parameter data of respective parameters with a given intervals; second means for processing sampled parameter data of each parameter for deriving a parameter associated evaluation data of the corresponding parameter; third means utilizing a plurality of evaluating functions respectively set with respect to the corresponding parameter, for deriving distribution of said parameter associated evaluation data over a plurality of predetermined value ranges respectively corresponding a plurality of vehicular driving modes to produce a distribution indicative data; and fourth means for processing the distribution indicative data of all parameters for deriving a vehicle driving condition indicative data; and a shift control means for deriving a transmission speed ratio on the basis of said vehicle speed data and said throttle angle data according to selected one of the shift patterns.
Claim 13
Independent Claim
226 words
A system for controlling shifting of an automotive automatic power transmission comprising: a vehicle speed sensor for monitoring a vehicle speed for producing a vehicle speed data; a throttle angle sensor for monitoring a throttle valve angular position for producing a throttle angle data; a shift pattern selection means for selecting one of a plurality of transmission speed ratio shifting pattern respectively adapted to vehicular driving modes, said shift pattern selection means being associated with a driving condition recognizing means which includes: first means for monitoring a plurality of preselected parameters reflecting a vehicle driving condition and sampling parameter data of respective parameters with a given intervals; second means for processing sampled parameter data of each parameter for deriving a parameter associated evaluation data of the corresponding parameter; third means utilizing a plurality of evaluating functions respectively set with respect to the corresponding parameter, for deriving distribution of said parameter associated evaluation data over a plurality of predetermined value ranges respectively corresponding a plurality of vehicular driving modes to produce a distribution indicative data; and fourth means for processing the distribution indicative data of all parameters for deriving a vehicle driving condition indicative data; and a shift control means for deriving a transmission speed ratio on the basis of said vehicle speed data and said throttle angle data according to selected one of the shift patterns.
Claim 14
Dependent Claim
41 words
A system as set forth in claim 11, wherein said second means utilizes a plurality of preset parameter evaluating functions for deriving distribution of said parameter data over a plurality of predetermined value ranges respectively corresponding to a vehicular driving modes.
Claim 15
Dependent Claim
31 words
A system as set forth in claim 11, wherein said first means monitors at least a first parameter reflecting an engine load condition and a second parameter reflecting an engine speed.
Claim 16
Dependent Claim
61 words
A system as set forth in claim 1, wherein said evaluating function has a first value range of said parameter associated evaluation data, in which the function value is maintained constant at a predetermined maximum value and a second value range overlapping with another evaluating function, in which function value varies between said predetermined maximum value and a predetermined minimum value.
Claim 17
Dependent Claim
41 words
A system as set forth in claim 14, wherein said third means derives said function value with respect to each of said vehicular driving modes, which function value represents distribution of said parameter associated evaluation data over said vehicular driving modes.
Claim 18
Dependent Claim
37 words
A system as set forth in claim 16, wherein said third means integrates said function values derived with respect to each of individual parameter data for deriving a distribution indicative data of each of said driving modes.
Claim 19
Dependent Claim
40 words
A system as set forth in claim 16, wherein said fourth means is provided weighting factors for each driving modes and derives said vehicular driving condition indicative data on the basis of said distribution indicative data and said weighting factors.
Claim 20
Dependent Claim
33 words
A system as set forth in claim 17, wherein said fourth means performs weighting averaging operation of said distribution indicative data with said weighting factor for deriving said vehicular driving condition indicative data.
Claim 21
Dependent Claim
62 words
A system as set forth in claim 12, wherein said parameter evaluating function has a first value range of said parameter associated evaluation data, in which the function value is maintained constant at a predetermined maximum value and a second value range overlapping with another evaluating function, in which function value varies between said predetermined maximum value and a predetermined minimum value.
Claim 22
Dependent Claim
41 words
A system as set forth in claim 19, wherein said second means derives said function value with respect to each of said vehicular driving modes, which function value represents distribution of said parameter associated evaluation data over said vehicular driving modes.
References Cited (Backward Citations)
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