Patent ID: 7894969
Filing Date: 2011-02-22
Classification: B60W,F16H,Y10T

Abstract:
1. A control apparatus for a vehicle that includes an engine, and an automatic transmission, connected to the engine, in which a gear is selected from among a plurality of gears with different gear ratios by selectively engaging a plurality of friction engagement elements, comprising: a torque-boost control portion that boosts torque output from the engine, and corrects an opening amount of a throttle valve that adjusts an amount of air taken into the engine to increase the amount of air during a torque phase when the automatic transmission upshifts; and an inertia-phase determination portion configured to determine whether an inertia phase has started, when a rotational speed of an input shaft of the automatic transmission is lower than a value obtained by multiplying a rotational speed of an output shaft of the automatic transmission by the gear ratio of the gear selected before an upshift starts, wherein the torque-boost control portion includes a torque-boost end control portion that executes a torque-boost end control that gradually decreases a correction amount, by which the opening amount of the throttle valve is corrected, to zero when the inertia-phase determination portion determines that the inertia phase has started, and the torque-boost end control portion calculates the opening amount of the throttle valve, using an equation, THA=THA (D)+(1−S)×ΔTHA where THA represents the opening amount of the throttle valve during the torque-boost end control, THA (D) represents the opening amount of the throttle valve when no control is executed by the torque-boost control portion, ΔTHA represents a correction amount by which the opening amount of the throttle valve is increased by the torque-boost control portion, and S represents the shift progress degree.