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Title: Method and apparatus for controlling a powertrain system including a multi-mode transmission

A powertrain including an engine and torque machines is configured to transfer torque through a multi-mode transmission to an output member. A method for controlling the powertrain includes employing a closed-loop speed control system to control torque commands for the torque machines in response to a desired input speed. Upon approaching a power limit of a power storage device transferring power to the torque machines, power limited torque commands are determined for the torque machines in response to the power limit and the closed-loop speed control system is employed to determine an engine torque command in response to the desired input speed and the power limited torque commands for the torque machines.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
1214150
Report Number(s):
9,126,588
13/495,037
DOE Contract Number:
FC26-08NT04386
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jun 13
Research Org:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS