Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125329 | Controller for variable transmission | Alan L. Miller, Scott R. Anderson | 2021-09-21 |
| 10100927 | Controller for variable transmission | Alan L. Miller, Scott R. Anderson | 2018-10-16 |
| 8996263 | Controller for variable transmission | Alan L. Miller, Scott R. Anderson | 2015-03-31 |
| 6938592 | Control method for electro-hydraulic control valves over temperature range | Danny R. Taylor | 2005-09-06 |
| 6810843 | Control method for achieving expected VCT actuation rate using set point rate limiter | — | 2004-11-02 |
| 6807931 | Control method for transitions between open and closed loop operation in electronic VCT controls | Danny R. Taylor, Earl Ekdahl | 2004-10-26 |
| 6745732 | VCT cam timing system utilizing calculation of intake phase for dual dependent cams | Earl Ekdahl | 2004-06-08 |
| 6722328 | Control method for dual dependent variable CAM timing system | — | 2004-04-20 |
| 5497738 | VCT control with a direct electromechanical actuator | Edward C. Siemon | 1996-03-12 |
| 5289805 | Self-calibrating variable camshaft timing system | Earl Ekdahl | 1994-03-01 |
| 5218935 | VCT system having closed loop control employing spool valve actuated by a stepper motor | Edward C. Siemon | 1993-06-15 |
| 5184578 | VCT system having robust closed loop control employing dual loop approach having hydraulic pilot stage with a PWM solenoid | Alan L. Miller, Edward C. Siemon | 1993-02-09 |
| 4949215 | Driver for high speed solenoid actuator | George H. Studtmann, Todd L. King | 1990-08-14 |