Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-10-31
1992-11-24
Braun, Leslie A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
3644241, 475276, 475330, F16H 366
Patent
active
051653087
ABSTRACT:
A shift control system and method for use in an automatic transmission includes a plurality of frictional engagement elements and a gear train settable to a plurality of speed stages of different gear ratios according to the engagement/release states of the frictional engagement means and having a plurality of different engagement/release combinations for the frictional engagement elements to set a predetermined one of the speed stages. A shift decision unit decides a shift to be performed. A speed stage selection determines a speed stage to be set after the shift. An engagement/release pattern selects and outputs one of the engagement/release combinations of the frictional engagement elements for setting a speed in which either the current speed stage or the speed stage to be set after the shift is the predetermined speed stage, wherein two or less of the frictional engagement elements have their engagement/release states switched during the shift.
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Asada Toshiyuki
Hojo Yasuo
Tomomatsu Hideo
Braun Leslie A.
Ta Khoi Q.
Toyota Jidosha & Kabushiki Kaisha
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