Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10994722 | Techniques for monitoring powertrain propulsive torque in battery electric and plug-in hybrid electric vehicles | Behrouz Ashrafi, Sathya Manivasagam, Feisel Weslati | 2021-05-04 |
| 9321450 | System and method for processing engine roughness for cold start fuel control via electric motor | Kenneth P. DeGroot, Sashidhar Velnati, Mengyang Zhang, Scott Reynolds | 2016-04-26 |
| 8857418 | Method for preparing internal combustion engine for shutdown to achieve clean restart | Joseph Roos, Kenneth P. DeGroot, Sashidhar Velnati, Goro Tamai | 2014-10-14 |
| 7292928 | Method for controlling an operating condition of a vehicle engine | Roger K Vick, Michael J Prucka, Denise M Kramer, Eugenio DiValentin, Gregory L. Ohl | 2007-11-06 |
| 7181332 | Method for controlling an operating condition of a vehicle engine | Roger K Vick, Michael J Prucka, Denise M Kramer, Eugenio DiValentin, Gregory L. Ohl | 2007-02-20 |
| 6855092 | Throttle control method and method of selecting powertrain objectives | Mark J. Duty | 2005-02-15 |
| 6671603 | Efficiency-based engine, powertrain and vehicle control | Michael J Cari, Gregory L. Ohl, Sven Merkle | 2003-12-30 |
| 6430515 | Method of determining barometric pressure for use in an internal combustion engine | Amit K. Sanyal, Gregory L. Ohl, Chris Kapolnek | 2002-08-06 |
| 6397112 | Zone adaptive cell breakdown | — | 2002-05-28 |
| 6357431 | Wave form fuel/air sensor target voltage | Kenneth P. DeGroot, Yi Cheng, Edward M Vuylsteke, Jonathan F Rose, Bruce H. Teague +1 more | 2002-03-19 |
| 6253750 | Model based purge system | Mark J. Duty | 2001-07-03 |
| 6167877 | Method of determining distribution of vapors in the intake manifold of a banked engine | Amit K. Sanyal, Mark J. Duty, Gregory L. Ohl | 2001-01-02 |
| 6148800 | Injection temperature fuel feedback | Michael J Cari, Mark J. Duty, Chris Kapolnek, Gregory L. Ohl, Amit K. Sanyal +2 more | 2000-11-21 |
| 6119662 | Method of predicting purge vapor concentrations | Mark J. Duty | 2000-09-19 |
| 6119512 | Method of determining a fuel tank vapor flow rate | Mark J. Duty | 2000-09-19 |
| 6085730 | Method for improved fuel delivery for multi-port fuel injection system | Greg Weber, John N. Oenick, Brian E. Beechie, Jeff Ehlers | 2000-07-11 |
| 6047688 | Method of determining the purge canister mass | Mark J. Duty | 2000-04-11 |
| 6021765 | Linear-EGR flow rate adaption | Kenneth P. DeGroot, Michael A Bonne | 2000-02-08 |
| 5596975 | Method of pulse width modulating an oxygen sensor | Christopher P. Thomas, Kenneth P. DeGroot, Jeffery C. Ehlers, Mark E. McMackin, Keith L. Jones | 1997-01-28 |
| 5544640 | System and method for heating an oxygen sensor via multiple heating elements | Christopher P. Thomas, Kenneth P. DeGroot, Jeffery C. Ehlers, Mark E. McMackin | 1996-08-13 |