US 7,537,542 B2
Control system architecture for a hybrid powertrain
William R. Cawthorne, Milford, Mich. (US); Mario V. Maiorana, Jr., Davisburg, Mich. (US); Jy-Jen F. Sah, West Bloomfield, Mich. (US); Sean E Gleason, West Bloomfield, Mich. (US); Gregory A. Hubbard, Brighton, Mich. (US); Leonard G. Wozniak, Ann Arbor, Mich. (US); Matthew T. Boyle, South Lyon, Mich. (US); Anthony H. Heap, Ann Arbor, Mich. (US); and Aniket Kothari, Southfield, Mich. (US)
Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US)
Filed on Sep. 11, 2006, as Appl. No. 11/530,615.
Prior Publication US 2008/0064559 A1, Mar. 13, 2008
Int. Cl. B60K 1/02 (2006.01)
U.S. Cl. 477—3 24 Claims
OG exemplary drawing
 
1. Control apparatus for a powertrain system comprising an internal combustion engine and a pair of electrical machines each operably coupled to a two-mode compound-split electro-mechanical transmission, comprising:
a first control device comprising a system controller and first and second motor control processors;
the system controller operable to communicate with the first and second motor control processors via a first high speed communications bus, a second high speed communications bus, and, first and second serial peripheral interface buses; and,
the first and second motor control processors operable to control flow of electrical power between the pair of electrical machines and an electrical energy storage device, based upon input from the system controller.