A method of operating an automatic transmission
A shift pattern control for a multiple speed ratio transmission wherein an inference-based control overrides the normal shift pattern to automatically achieve manual pulldown operation under conditions for which such operation would be advised and expected. The inference-based control is achieved wi...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Patent |
| Sprache: | eng ; fre ; ger |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | MILUNAS, RIMAS STASYS REES, SUSAN LETTIE MOTAMEDI, NADER NITZ, LARRY THEODORE |
| description | A shift pattern control for a multiple speed ratio transmission wherein an inference-based control overrides the normal shift pattern to automatically achieve manual pulldown operation under conditions for which such operation would be advised and expected. The inference-based control is achieved with a fuzzy logic technique by which vehicle parameters influencing the desirability of manual pulldown operation are measured or estimated, and used to establish an aggregate measure of the overall need for engine braking and downshifting. In the preferred embodiment, the fuzzy logic parameters include vehicle speed, grade load, engine throttle position, time of braking and time of deceleration. The parameters are applied to membership functions to indicate the truthfulness of the specified conditions, and logical combinations of the truth indications are formed, weighted to reflect their criticality, and combined to form an aggregate measure of the overall need for pulldown operation. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP0559255A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP0559255A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP0559255A13</originalsourceid><addsrcrecordid>eNrjZNB3VMhNLcnIT1HIT1PIL0gtSizJzEtXSMxTSCwtyc8F8pIVSooS84pzM4uLM_PzeBhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJvGuAgamppZGpqaOhMRFKANE0Kpw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>A method of operating an automatic transmission</title><source>esp@cenet</source><creator>MILUNAS, RIMAS STASYS ; REES, SUSAN LETTIE ; MOTAMEDI, NADER ; NITZ, LARRY THEODORE</creator><creatorcontrib>MILUNAS, RIMAS STASYS ; REES, SUSAN LETTIE ; MOTAMEDI, NADER ; NITZ, LARRY THEODORE</creatorcontrib><description>A shift pattern control for a multiple speed ratio transmission wherein an inference-based control overrides the normal shift pattern to automatically achieve manual pulldown operation under conditions for which such operation would be advised and expected. The inference-based control is achieved with a fuzzy logic technique by which vehicle parameters influencing the desirability of manual pulldown operation are measured or estimated, and used to establish an aggregate measure of the overall need for engine braking and downshifting. In the preferred embodiment, the fuzzy logic parameters include vehicle speed, grade load, engine throttle position, time of braking and time of deceleration. The parameters are applied to membership functions to indicate the truthfulness of the specified conditions, and logical combinations of the truth indications are formed, weighted to reflect their criticality, and combined to form an aggregate measure of the overall need for pulldown operation.</description><language>eng ; fre ; ger</language><subject>BLASTING ; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION ; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ; ENGINEERING ELEMENTS AND UNITS ; GEARING ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; VEHICLES IN GENERAL ; WEAPONS</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930908&DB=EPODOC&CC=EP&NR=0559255A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930908&DB=EPODOC&CC=EP&NR=0559255A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MILUNAS, RIMAS STASYS</creatorcontrib><creatorcontrib>REES, SUSAN LETTIE</creatorcontrib><creatorcontrib>MOTAMEDI, NADER</creatorcontrib><creatorcontrib>NITZ, LARRY THEODORE</creatorcontrib><title>A method of operating an automatic transmission</title><description>A shift pattern control for a multiple speed ratio transmission wherein an inference-based control overrides the normal shift pattern to automatically achieve manual pulldown operation under conditions for which such operation would be advised and expected. The inference-based control is achieved with a fuzzy logic technique by which vehicle parameters influencing the desirability of manual pulldown operation are measured or estimated, and used to establish an aggregate measure of the overall need for engine braking and downshifting. In the preferred embodiment, the fuzzy logic parameters include vehicle speed, grade load, engine throttle position, time of braking and time of deceleration. The parameters are applied to membership functions to indicate the truthfulness of the specified conditions, and logical combinations of the truth indications are formed, weighted to reflect their criticality, and combined to form an aggregate measure of the overall need for pulldown operation.</description><subject>BLASTING</subject><subject>CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION</subject><subject>CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GEARING</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>TRANSPORTING</subject><subject>VEHICLES IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB3VMhNLcnIT1HIT1PIL0gtSizJzEtXSMxTSCwtyc8F8pIVSooS84pzM4uLM_PzeBhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJvGuAgamppZGpqaOhMRFKANE0Kpw</recordid><startdate>19930908</startdate><enddate>19930908</enddate><creator>MILUNAS, RIMAS STASYS</creator><creator>REES, SUSAN LETTIE</creator><creator>MOTAMEDI, NADER</creator><creator>NITZ, LARRY THEODORE</creator><scope>EVB</scope></search><sort><creationdate>19930908</creationdate><title>A method of operating an automatic transmission</title><author>MILUNAS, RIMAS STASYS ; REES, SUSAN LETTIE ; MOTAMEDI, NADER ; NITZ, LARRY THEODORE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0559255A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1993</creationdate><topic>BLASTING</topic><topic>CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION</topic><topic>CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GEARING</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>TRANSPORTING</topic><topic>VEHICLES IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MILUNAS, RIMAS STASYS</creatorcontrib><creatorcontrib>REES, SUSAN LETTIE</creatorcontrib><creatorcontrib>MOTAMEDI, NADER</creatorcontrib><creatorcontrib>NITZ, LARRY THEODORE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MILUNAS, RIMAS STASYS</au><au>REES, SUSAN LETTIE</au><au>MOTAMEDI, NADER</au><au>NITZ, LARRY THEODORE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A method of operating an automatic transmission</title><date>1993-09-08</date><risdate>1993</risdate><abstract>A shift pattern control for a multiple speed ratio transmission wherein an inference-based control overrides the normal shift pattern to automatically achieve manual pulldown operation under conditions for which such operation would be advised and expected. The inference-based control is achieved with a fuzzy logic technique by which vehicle parameters influencing the desirability of manual pulldown operation are measured or estimated, and used to establish an aggregate measure of the overall need for engine braking and downshifting. In the preferred embodiment, the fuzzy logic parameters include vehicle speed, grade load, engine throttle position, time of braking and time of deceleration. The parameters are applied to membership functions to indicate the truthfulness of the specified conditions, and logical combinations of the truth indications are formed, weighted to reflect their criticality, and combined to form an aggregate measure of the overall need for pulldown operation.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP0559255A1 |
| source | esp@cenet |
| subjects | BLASTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS |
| title | A method of operating an automatic transmission |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T11%3A46%3A15IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=MILUNAS,%20RIMAS%20STASYS&rft.date=1993-09-08&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP0559255A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |