| Patent Number |
Title Of Patent |
Date Issued |
| 7568402 |
Method and apparatus for fault-tolerant transmission gear selector lever position determination |
August 4, 2009 |
| A fault-tolerant gear selector lever position apparatus is described. Included is a first sensor operable to detect each position, and a second sensor operable to detect subsets of the positions. A first controller monitors the second sensor, and a second controller monitors the first |
| 7555411 |
Method and apparatus to monitor a temperature sensing device |
June 30, 2009 |
| A method and an article of manufacture are provided to monitor a temperature sensing circuit and detect a fault therein. The method comprises monitoring sensor readings output from a plurality of temperature sensing circuits. An average sensor reading is determined, calculated from t |
| 7555374 |
Method for monitoring a motor speed sensor |
June 30, 2009 |
| A method for detecting speed faults in a hybrid powertrain having engine and electric machine speed inputs includes directly sensing the engine and machine speeds and performing comparisons of sensed engine speed with engine speed determined based upon the machine speeds. |
| 7544151 |
Method and apparatus to monitor operation of an auxiliary hydraulic pump in a transmission |
June 9, 2009 |
| A method and apparatus to monitor operation of an electrically-actuated hydraulic pump selectively operative to supply pressurized fluid to a hydraulic circuit for a transmission device operably connected to an internal combustion engine of a vehicle includes monitoring vehicle opera |
| 6645121 |
Vehicle transmission system for controlling clutch temperature |
November 11, 2003 |
| A vehicle transmission system and method of controlling a vehicle transmission are provided that control clutch temperatures to extend clutch life. The system is comprised of an input drive shaft configured to be driven by an engine, an output drive shaft configured to drive a drive |
