GEAR SHIFT APPARATUS AND CONTROL METHOD THEREOF

摘要

In conjunction with a gear shift-up operation in an accelerator-on state, engagement control including torque phase control is performed after first fill control for controlling a hydraulic control unit so as to fill a hydraulic servo for an engaging friction engagement element such as a clutch (C3) with hydraulic oil and stand-by control for controlling the hydraulic control unit so as to maintain the oil pressure provided to the hydraulic servo for the engaging friction engagement element at a predetermined stand-by pressure level are executed, and, upon detection of a change in rotational acceleration (dNi) of an input shaft (26) in excess of a level based on thresholds (dNi1, ddNiref, and dNi3) predetermined as judgment criteria following the most recent stand-by control, a first fill time is adjusted to increase (step S240 - S300).