Patent ID: 8190340
Filing Date: 2012-05-29
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 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 vehicle speed, is located; a shift control unit that performs shift control on the basis of the target gear position; a vehicle speed estimating unit that estimates the vehicle speed following the elapse of a time required to shift to a first gear position on a low speed side of a current gear position when the engine load increases such that a shift to the first gear position is required; and a second gear position setting unit that sets a second gear position from the estimated vehicle speed and the engine load on the basis of the shift map, wherein the target gear position setting unit sets a gear position on a high speed side of the first gear position as the target gear position when the first gear position is on the low speed side of the second gear position.