Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-12-21
1992-08-25
Bonck, Rodney H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
3644241, 475276, F16H 5970, F16H 6104
Patent
active
051408708
ABSTRACT:
A shift control system for use in an automatic transmission which includes a plurality of frictional engagement components, and a gear train adapted to set a plurality of speed stage having (Tables 1 and 3) different gear ratios in accordance with the combination for engagement/release of the frictional engagement components and enabled to select a combination for engaging and releasing any of the frictional engagement components as that for engagement/release of the frictional engagement components for setting any of the speed stages. The shift control system includes a decider for deciding a shift to be executed; an engagement/release pattern selector for selecting a combination for engaging the frictional engagement components in a first combination (Table 3) for setting a predetermined one of the speed stages, before the shift is decided, and a second combination (Table 3) for the predetermined one of gear stages if the shift is decided; and an output device for outputting both an instruction signal for executing the shift and an instruction signal for setting the second combination (Table 1) of the frictional engagement components.
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Bonck Rodney H.
Ta Khoi Q.
Toyota Jidosha & Kabushiki Kaisha
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