The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Mar. 03, 2011
R. Anthony Hansen, Redford, MI (US);
Steven M. Hessell, Clarkston, MI (US);
Gil J. Mendoza, Novi, MI (US);
Robert L. Morris, Milford, MI (US);
Houchun Xia, Troy, MI (US);
R. Anthony Hansen, Redford, MI (US);
Steven M. Hessell, Clarkston, MI (US);
Gil J. Mendoza, Novi, MI (US);
Robert L. Morris, Milford, MI (US);
Houchun Xia, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for optimizing torque control in a vehicle having a controller and a rotating member includes generating a closed-loop total proportional torque command using a state space feedback portion of the controller, and splitting the total proportional torque command into high-frequency and low-frequency proportional torque components. A total proportional torque is passed to the rotating member to provide driveline damping control when speed control is not required. The high-frequency proportional torque component is passed to the rotating member to provide driveline damping control, and the low-frequency torque component is passed with a total integral torque command to the rotating member to provide speed control, when speed control is required. A vehicle includes a controller having proportional-integral control capabilities and a state space observer, and a powertrain having a rotating member whose speed and damping characteristics are controlled by the controller.