Machine powertrain control system and method

A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode...

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Bibliographische Detailangaben
Hauptverfasser:	HO AARON Y, ZHANG MING, ANDERSON MARK D, NASTAV CYNTHIA A, LIGHT DEREK J, MITCHELL MICHAEL D
Format:	Patent
Sprache:	eng
Schlagworte:	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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLETECHNOLOGY LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT 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 TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.