Patent ID: 8121764
Filing Date: 2012-02-21
Classification: F16H,Y10T

Abstract:
1. A shift control device for an automatic transmission, comprising: a shift map defined by an engine load and a vehicle speed and divided into gear position regions by shift lines; a vehicle speed estimating unit that estimates a look-ahead vehicle speed, which is a vehicle speed at a predetermined future time, when the engine load increases such that a shift to a gear position on a low speed side of a current gear position is required; a target gear position setting unit that sets a target gear position according to the region of the shift map in which an operating condition, which is determined by the engine load and the look-ahead vehicle speed, is located; and a shift control unit that performs shift control on the basis of the target gear position, and wherein the target gear position setting unit sets a gear position on a high speed side of the target gear position as the target gear position when the target gear position is on a low speed side of a current gear position and the look-ahead vehicle speed is higher than a predetermined vehicle speed.