F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 61/00 (2006.01) F16H 61/06 (2006.01)
Patent
CA 2084336
ABSTRACT OF THE DISCLOSURE A method is provided for the control of servo hydraulic pressure in an automatic transmission. Servo hydraulic pressure is adapted to engage or release first and second frictional engagement elements ar- ranged in such a relationship that upon shifting from a particular speed stage to another, one of the first and second frictional engagement elements is released while the other is engaged. The servo hydraulic pressure is linearly lowered in a torque phase during a shift so that the servo hydraulic pressure on a side of the frictional engagement element to be released by using as an input the servo hydraulic pressure on a side of the frictional engagement element to be engaged is maintained in conformity with an inversely proportional relationship between engaging pressure and drain pres- sure.
Ando Masahiko
Hayabuchi Masahiro
Hojo Yasuo
Kubo Seitoku
Noda Koji
Ando Masahiko
Hayabuchi Masahiro
Hojo Yasuo
Kubo Seitoku
Marks & Clerk
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