Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-12-21
1992-07-14
Lorence, Richard
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
475278, B60K 4106
Patent
active
051292874
ABSTRACT:
A shift control system for use in an automatic transmission which comprises: a plurality of frictional engagement components; and a gear train adapted to set a plurality of speed stages having 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 comprises: a detector for detecting the engagement failure of the frictional engagement components; an engagement/release pattern selector for selecting a combination for releasing any one of the frictional engagement components as the combinations for engagement/release of the frictional engagement components for setting any one of the speed stages, if the engagement failure of any one of the frictional engagement components is detected; and an output device for outputting an instruction signal for setting the selected combination for engagement/release of the frictional engagement components.
REFERENCES:
patent: 2825245 (1958-03-01), Hobbs
patent: 3043163 (1962-07-01), Hobbs
patent: 3115793 (1963-12-01), Hobbs
patent: 3596537 (1971-08-01), Koivunen
patent: 3848518 (1974-11-01), Martin
patent: 3964584 (1976-06-01), Bucksch
patent: 4225026 (1980-09-01), Yamamori et al.
patent: 4233861 (1980-11-01), Gaus et al.
patent: 4395925 (1983-08-01), Gaus
patent: 4450944 (1984-05-01), Fujioka
patent: 4635508 (1987-01-01), Tatsumi
patent: 4660439 (1987-04-01), Hiraiwa
patent: 4843551 (1989-06-01), Milunas
patent: 4846021 (1989-07-01), Hamano et al.
Asada Toshiyuki
Hojo Yasuo
Tomomatsu Hideo
Levi Benjamin
Lorence Richard
Toyota Jidosha & Kabushiki Kaisha
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