Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8036807 | Control strategy for transitioning among combustion modes in an internal combustion engine | Jun-Mo Kang, Chen-Fang Chang, Vijay Ramappan, Peter Kafarnik | 2011-10-11 |
| 7975668 | Spark timing and control during transitions between spark ignited combustion and homogenous charge compression ignition | Vijay Ramappan, Jun-Mo Kang, Peter Kafarnik, Matthew A. Wiles, Hanho Yun | 2011-07-12 |
| 7979195 | Valvetrain control systems for internal combustion engines with multiple intake and exhaust timing based lift modes | — | 2011-07-12 |
| 7974766 | Valvetrain control systems with lift mode transitioning based engine synchronization timing and sensor based lift mode control | — | 2011-07-05 |
| 7963268 | Control strategy for transitions between homogeneous-charge compression-ignition and spark-ignition combustion modes | Jun-Mo Kang, Chen-Fang Chang, Vijay Ramappan | 2011-06-21 |
| 7845319 | Valvetrain control systems with independent intake and exhaust lift control | — | 2010-12-07 |
| 7740003 | Valvetrain control systems for internal combustion engines with different intake and exhaust leading modes | — | 2010-06-22 |
| 7739027 | Method and apparatus for monitoring an EGR valve in an internal combustion engine | Jun-Mo Kang, Chen-Fang Chang, Vijay Ramappan | 2010-06-15 |
| 7729844 | HCCI combustion moding state control for fuel economy and seamless transitions | Chen-Fang Chang, Peter Kafarnik, Jun-Mo Kang, Vijay Ramappan | 2010-06-01 |
| 7610897 | Valvetrain control systems for internal combustion engines with time and event based control | — | 2009-11-03 |
| 7530413 | Reducing torque disturbances and improving fuel economy in hybrid electric powertrains | — | 2009-05-12 |
| 7233854 | Method for improving fuel economy and performance when deactivating cylinders with vehicle cruise control | Dennis M. Weglarz, James C. Champlin, Nathan Wilmot, James G. Gehringer, William R. Venner, III | 2007-06-19 |
| 6959684 | Torque based cylinder deactivation with vacuum correction | — | 2005-11-01 |
| 6915781 | Engine control system with throttle preload during cylinder deactivation | — | 2005-07-12 |
| 6782865 | Method and apparatus for control of a variable displacement engine for fuel economy and performance | Gregory P. Matthews | 2004-08-31 |
| 6769403 | Spark retard control during cylinder transitions in a displacement on demand engine | Gregory P. Matthews | 2004-08-03 |
| 6752121 | Cylinder deactivation system timing control synchronization | Gregory D. Polen | 2004-06-22 |
| 6739314 | Displacement on demand with throttle preload security methodology | Paul A. Bauerle, Donovan L. Dibble, Kerfegar K. Katrak, Kevin J. Storch, Alfred E. Spitza, Jr. +1 more | 2004-05-25 |
| 6736108 | Fuel and spark compensation for reactivating cylinders in a variable displacement engine | William R. Aro, Gregory P. Matthews | 2004-05-18 |
| 6655353 | Cylinder deactivation engine control system with torque matching | — | 2003-12-02 |