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:
May. 26, 2009
Filed:
Sep. 11, 2006
William R. Cawthorne, Milford, MI (US);
Mario V. Maiorana, Jr., Davisburg, MI (US);
Jy-jen F. Sah, West Bloomfield, MI (US);
Sean E Gleason, West Bloomfield, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
Leonard G. Wozniak, Ann Arbor, MI (US);
Matthew T. Boyle, South Lyon, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Aniket Kothari, Southfield, MI (US);
William R. Cawthorne, Milford, MI (US);
Mario V. Maiorana, Jr., Davisburg, MI (US);
Jy-Jen F. Sah, West Bloomfield, MI (US);
Sean E Gleason, West Bloomfield, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
Leonard G. Wozniak, Ann Arbor, MI (US);
Matthew T. Boyle, South Lyon, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Aniket Kothari, Southfield, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A control apparatus for a powertrain system comprising an engine and two electrical machines operably coupled to a two-mode compound-split electro-mechanical transmission is provided. It includes a system controller and two motor control processors. The system controller communicates with the motor control processors via two high speed communications buses and directly-linked serial peripheral interface buses. The motor control processors control flow of electrical power between the electrical machines and an electrical energy storage device. A second control device is operable to control the engine, preferably to control torque output. The internal combustion engine preferably has a crank position sensor which is signally connected to a dedicated input to the second control device and to a dedicated input to the system controller of the first control device.