| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an automatic transmission control device for continuously attaining desired shifting operation over a long period of time while avoiding an influence of the occurrence of aging deterioration in a control mechanism system by constructing a control software system for actualizing learning correction without producing excess or deficiency in a learning correction amount while suppressing a storage capacity. <P>SOLUTION: The automatic transmission control device comprises a friction fastening element 1, a normally high type linear solenoid valve 2, a control valve 3, and an automatic transmission control unit 4. The learning correction amount is divided into an initial learning amount not depending on a fastening element pressure command value PO, and an aging deterioration amount depending on the fastening element pressure command value PO. A means finds a learning region correction amountΔPL which is acquired by learning control using a limited input torque region as a learning region, and an aging deterioration correction amountΔPEO depending on a deterioration proceeding degree appearing in a difference from a PS initial learning amountΔPI and on the fastening element pressure command value PO, and calculates a final fastening element pressure command value PO<SP>*</SP>using such a value that the initial learning amount during correction is added to the aging deterioration correction amountΔPEO as a learning correction amount. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
