Gear preselect system for an electro-mechanical automatic transmission having dual input shafts

A gear preselect system is provided for a transmission having dual input shafts in order to delay a gear preselect change until the last moment possible. The transmission controller determines the speed at which the next shift will occur and determines the preselect speed at which the preselect shou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHERRY JEFFREY R, REED, JR. RICHARD G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A gear preselect system is provided for a transmission having dual input shafts in order to delay a gear preselect change until the last moment possible. The transmission controller determines the speed at which the next shift will occur and determines the preselect speed at which the preselect should occur in order for the preselect to take place prior to the time for shifting to the next gear. When the current vehicle speed is equal to or greater than the preselect speed, the transmission controller preselects the next higher gear.