Shift control system for automatic transmission.

摘要

A shift control system is provided for an automatic transmission in which a secondary shifting unit capable of being shifted to a high speed stage or a low speed stage and a primary shifting unit capable of setting one of plural speed stages including a reverse speed stage are connected in series and the secondary shifting unit can be set to the high speed stage upon setting the reverse speed stage. The shift control system is equipped with a reverse range detector for detecting a shift from a neutral range to a reverse range, a vehicle stop detector for detecting a vehicle in a stopped state, and a high speed stage command device for setting the secondary shifting unit at the high speed stage when subsequent to setting of the primary shifting unit at the reverse speed stage as a result of a shift to the reverse range, the vehicle is determined by a signal from the vehicle stop detector to have substantially stopped.