| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic transmission control device, improving responsiveness in line pressure control. SOLUTION: In this automatic transmission control device 10, the applied pressure applied to two or more frictional elements 1 to 5 of an automatic transmission is generated by liquid pressure adjustment of hydraulic fluid to thereby control engagement and release of the respective frictional elements 1 to 5. The device includes: two or more solenoid valves 11 to 15; two or more applied pressure control valves 21 to 25 controlling the applied pressure to the corresponding frictional elements 1 to 5 according to the output pressure of the corresponding solenoid valves 11 to 15; select means 31 to 34 selecting the highest output pressure among the output pressure of the respective solenoid valves 11 to 15; and a line pressure control valve 42 controlling the line pressure according to the output pressure selected by the select means 31 to 34. COPYRIGHT: (C)2005,JPO&NCIPI |
