HYBRID VEHICLE PROPULSION SYSTEMS AND METHODS

HYBRID VEHICLE PROPULSION SYSTEMS AND METHODS

A vehicle propulsion system includes a combustion engine configured to output a propulsion torque to satisfy a propulsion demand, and a traction electric machine to generate a supplemental torque to selectively supplement the propulsion torque. The propulsion system also includes a controller progra...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: O'leary, Patrick J, Livshiz, Michael, Lee, Jin-Woo, Chang, Chen-fang, Robinet, Kevin J, Rajagopalan, Sai, Atluri, Venkata Prasad, Namuduri, Chandra S, Gopalakrishnan, Suresh
Format: Patent
Sprache:eng
Schlagworte:
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION
CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES
PERFORMING OPERATIONS
ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT
TRANSPORTING
VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:A vehicle propulsion system includes a combustion engine configured to output a propulsion torque to satisfy a propulsion demand, and a traction electric machine to generate a supplemental torque to selectively supplement the propulsion torque. The propulsion system also includes a controller programmed to forecast an acceleration demand based on at least one estimation model. The controller is also programmed to issue a command indicative of a required axle torque corresponding to the acceleration demand. The controller is further programmed to engage at least one fuel conservation action in response to the required axle torque being within a first predetermined torque threshold range.