Control device for power transmission device for vehicles

A control device for a power transmission device for a vehicle having a clutch between an engine and a transmission, an input shaft of said clutch being coupled to said engine and an output shaft thereof being coupled to said transmission, wherein:

• said clutch includes a clutch control device for controlling the amount of engagement thereof, and said clutch control device disengages said clutch at the time of shifting and after the shifting has been completed, executes a half-engage clutch control for engaging said clutch while gradually increasing the amount of engagement thereof;
• said engine includes an engine control device that executes an accelerator pedal follow-up control using the amount the accelerator pedal is depressed as a basic parameter and at the time of shifting, said engine control device executes a shifting engine control for controlling said engine independently of the amount the accelerator pedal is depressed and, thereafter, resumes said accelerator pedal follow-up control at a moment when a difference between the engine rotational speed and the rotational speed of said clutch output shaft has reached a predetermined value;
• and
• said clutch control device includes a timer means which starts counting the time at a moment when said clutch is disengaged at the time of shifting, and said clutch control device starts controlling said clutch so as to be engaged before the end of a period determined by said timer means and sets the period determined by said timer means depending upon the conditions of the engine at the time of shifting.