초록 ▼

A shift by wire vehicle transmission includes control methods for engaging gears after the vehicle has been at rest or coasting. When the vehicle is started from a stop or rest, a default starting gear is automatically selected. The driver can override the default gear and choose to start driving th

A shift by wire vehicle transmission includes control methods for engaging gears after the vehicle has been at rest or coasting. When the vehicle is started from a stop or rest, a default starting gear is automatically selected. The driver can override the default gear and choose to start driving the vehicle in one gear above or below the default starting gear by manipulating a shift lever. Similarly, the driver can override the default starting gear to begin driving the vehicle in reverse. When the vehicle has been coasting, the transmission control unit chooses the next gear based upon a signal that is provided when the driver manipulates the shift lever. Depending on the indicated desire of the driver, the system controller automatically selects a gear depending upon vehicle speed and torque conditions.

대표청구항 ▼

[ I claim:] [1.] A method of controlling a vehicle transmission system, comprising the steps of:(A) determining that the vehicle is at rest;(B) determining that a vehicle operator desires to drive the vehicle;(C) determining whether a vehicle operator has provided a signal indicating a desired start

[ I claim:] [1.] A method of controlling a vehicle transmission system, comprising the steps of:(A) determining that the vehicle is at rest;(B) determining that a vehicle operator desires to drive the vehicle;(C) determining whether a vehicle operator has provided a signal indicating a desired starting gear;(D) moving the vehicle transmission into the desired starting gear when the signal of step (C) has been provided and(E) moving the vehicle transmission into a preset default starting gear that does not change when the signal of step (C) has not been provided.