Michael J Arnett

US Patent:

8583306, Nov 12, 2013

Filed:

Jun 3, 2011

Appl. No.:

13/152380

Inventors:

Michael Arnett - Naperville IL, US
Krunal P. Patel - Sterling Heights MI, US
Sean W. McGrogan - Ann Arbor MI, US
Adam J. Heisel - Garden City MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60L 11/00
B60W 20/00

US Classification:

701 22, 180 65275, 701 54

Abstract:

A method for controlling output torque of a hybrid powertrain system includes determining a constrained output torque in response to an operator torque request, and determining maximum and minimum output torque limits. A time-rate change in the constrained output torque at each of a plurality of torque breakpoints is determined. A desired output torque is determined. A preferred output torque is determined as the desired output torque adjusted using the time-rate changes in the constrained output torque at the plurality of torque breakpoints and limited within the maximum and minimum output torque limits. Torque outputs of torque generators of the hybrid powertrain system are controlled in response to the preferred output torque.