US 7,469,177 B2
Distributed control architecture for powertrains
Tariq Samad, Minneapolis, Minn. (US); Syed M. Shahed, Rancho Palos Verdes, Calif. (US); Joseph Z. Lu, Glendale, Ariz. (US); Gregory E. Stewart, Vancouver (Canada); and Vladimir Ravlena, Prague (Czech Republic)
Assigned to Honeywell International Inc., Morristown, N.J. (US)
Filed on Jun. 17, 2005, as Appl. No. 11/155,996.
Prior Publication US 2006/0287795 A1, Dec. 21, 2006
Int. Cl. G06F 7/00 (2006.01); G06F 17/00 (2006.01); F02B 47/08 (2006.01); F01N 3/00 (2006.01)
U.S. Cl. 701—54  [701/48; 701/51; 701/60; 701/61; 701/101; 701/102; 701/103; 701/104; 701/105; 701/106; 701/107; 701/108; 701/109; 123/406.45; 123/406.47; 123/406.48; 123/445; 123/568.11; 60/272; 60/276; 60/285; 700/2; 700/3; 700/9; 700/10; 700/28] 20 Claims
OG exemplary drawing
 
1. A distributed control system for controlling an automotive powertrain that includes an engine, the distributed control system comprising:
a supervisory powertrain control unit configured to control one or more powertrain subsystems, the supervisory powertrain control unit configured to implement a central optimization algorithm that performs a global optimization of powertrain subsystem operation;
two or more subsystem control units in communication with the supervisory powertrain control unit, at least two of the two or more subsystem control units are configured to control an operational aspect of the engine, wherein at least two of the subsystem control units that are configured to control an operational aspect of the engine are configured to implement lower-level optimization algorithms that perform a local optimization for the corresponding subsystem using command signals outputted from the supervisory powertrain control unit as input.