Cylinder torque balancing for internal combustion engines
US7500470B2 · kind B2 · utility
20Cited by
8References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Feb 21, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/1012
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine torque control system for balancing torque output across cylinders of an internal combustion engine includes a first module that determines a derivative term for each cylinder of the engine based on rotation of a crankshaft. A second module determines a torque correction for a first cylinder based on an average derivative term associated with the first cylinder. The second module adjusts a torque output of the first cylinder based on the torque correction and adjusts a torque output of a second cylinder based on the torque correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.