Patent ID: 6637566
Filing Date: 2003-10-28
Classification: F16H,Y10T

Abstract:
A lock-up control device for a torque converter of an automatic transmission equipped with a lock-up clutch, including learning control means for performing a learning control of an initial command oil pressure for a lock-up control for each of plurality of lock-up regions according to vehicle running condition, said learning control means setting the initial command oil pressure by adding a lock-up learning correction amount to a basic initial pressure set for each of the plurality of lock-up regions, and setting an initial command oil pressure of a lock-up control of one of the plurality of lock-up regions by using a lock-up learning correction amount calculated by a learning control in a lock-up control of the other of the plurality of lock-up regions when the lock-up control of the other of the plurality of lock-up regions is performed before the lock-up control of the one of the plurality of lock-up regions.