Patent ID: 7578767
Filing Date: 2009-08-25
Classification: F16H,Y10T

Abstract:
1. An automatic transmission control device for a vehicle having a gear change operation that is performed based on a throttle opening, a vehicle speed and an engine rotational speed, the automatic transmission control device further comprising: obtaining means for obtaining a displacement of the throttle opening; determining means for determining whether the displacement falls within a predetermined range; and restricting means for restricting a shift-up when the displacement exceeds the predetermined range; wherein the predetermined range is set such that the range differs corresponding to a gear step at the time of performing the shift-up; and wherein the predetermined range comprises a numerical value on a predetermined plus side and a numerical value on a predetermined minus side, and an absolute value of the numerical value on the predetermined plus side is set smaller than an absolute value of the numerical value on the predetermined minus side at a predetermined gear step.