Patent ID: 7645210
Filing Date: 2010-01-12
Classification: B60W,F02D,F16H,Y02T,Y10T

Abstract:
1. A control apparatus for an automatic transmission provided with a speed change mechanism, wherein the control apparatus includes a hydraulic pressure control means for individually controlling hydraulic pressure acting to a plurality of frictional engaging elements to selectively switch engagement and disengagement of respective frictional engaging elements, thereby switching a gear stage of the speed change mechanism, said control apparatus comprising: downshift control means for controlling the hydraulic pressure, in response to a driver's command to decelerate, in such a manner that said speed change mechanism causes a downshift to a gear stage capable of producing an engine brake; engine output increasing means for executing an engine output increasing control that increases an engine output during said downshift control irrespective of a driver's accelerator operation; and input shaft speed detecting means for detecting an input shaft rotational speed of said speed change mechanism, wherein said engine output increasing means starts said engine output increasing control when a reduction in the input shaft rotational speed of said speed change mechanism exceeds a predetermined value.