| 摘要 |
The method involves determining whether transmission is in a forward gear, and whether a failure criterion exists based on a current gear, an input shaft speed, an output shaft speed, or an engine speed, if the transmissions in a forward gear. The current gear is maintained if a downshifts criterion exists, or the gear is up-shifted if an up-shift criteria exists, if their exist a failure criterion. An Independent claim is also included for a system for diagnosing a failure of an output shaft speed sensor of an automatic transmission. |
