skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Control system for a hybrid powertrain system

Abstract

A vehicle includes a powertrain with an engine, first and second torque machines, and a hybrid transmission. A method for operating the vehicle includes operating the engine in an unfueled state, releasing an off-going clutch which when engaged effects operation of the hybrid transmission in a first continuously variable mode, and applying a friction braking torque to a wheel of the vehicle to compensate for an increase in an output torque of the hybrid transmission resulting from releasing the off-going clutch. Subsequent to releasing the off-going clutch, an oncoming clutch which when engaged effects operation of the hybrid transmission in a second continuously variable mode is synchronized. Subsequent to synchronization of the oncoming clutch, the oncoming clutch is engaged.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1157631
Patent Number(s):
8,827,865
Application Number:
13/223,052
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
DOE Contract Number:  
FC26-08NT04386
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Naqvi, Ali K., Demirovic, Besim, Gupta, Pinaki, and Kaminsky, Lawrence A. Control system for a hybrid powertrain system. United States: N. p., 2014. Web.
Naqvi, Ali K., Demirovic, Besim, Gupta, Pinaki, & Kaminsky, Lawrence A. Control system for a hybrid powertrain system. United States.
Naqvi, Ali K., Demirovic, Besim, Gupta, Pinaki, and Kaminsky, Lawrence A. Tue . "Control system for a hybrid powertrain system". United States. https://www.osti.gov/servlets/purl/1157631.
@article{osti_1157631,
title = {Control system for a hybrid powertrain system},
author = {Naqvi, Ali K. and Demirovic, Besim and Gupta, Pinaki and Kaminsky, Lawrence A.},
abstractNote = {A vehicle includes a powertrain with an engine, first and second torque machines, and a hybrid transmission. A method for operating the vehicle includes operating the engine in an unfueled state, releasing an off-going clutch which when engaged effects operation of the hybrid transmission in a first continuously variable mode, and applying a friction braking torque to a wheel of the vehicle to compensate for an increase in an output torque of the hybrid transmission resulting from releasing the off-going clutch. Subsequent to releasing the off-going clutch, an oncoming clutch which when engaged effects operation of the hybrid transmission in a second continuously variable mode is synchronized. Subsequent to synchronization of the oncoming clutch, the oncoming clutch is engaged.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {9}
}

Patent:

Save / Share:

Works referenced in this record: