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AssigneeJacto Ltd
InventorsKazuhiro Takatori, Osamu Sato, Tatsuya Imamura, Yasushi Fujita, Kazuhito Sano, Kazuo Tomioka
Estimating the term…
An initial command oil pressure of a lock-up control of coasting lock-up region is set by using a lock-up learning correction amount calculated by a learning control in a lockup control of the other of the plurality of lock-up regions such as slip lock-up region and complete lock-up region when one of the lock-up control of these other lock-up regions is performed before the lock-up control of the coasting lock-up region. Thus, a lock-up learning correction amount can be commonly used among three kinds of lock-up regions, and a lock-up as set is early realized in each lock-up region.
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.
Dependencies are inferred from the claim text.