Transient control of shift in auxiliary gearing for quick engine

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

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Details

74866, 74868, 74869, B60K 4106

Patent

active

050333305

ABSTRACT:
An accumulator is disposed in a fluid line leading from a shift valve to a reduction brake of an auxiliary gearing of an automatic transmission. A back-up pressure of the accumulator is modified upon setting an automatic transmission to an engine brake running range and/or a reverse drive range.

REFERENCES:
patent: 4346626 (1982-08-01), Kawamoto
patent: 4474084 (1984-10-01), Sugano et al.
patent: 4706523 (1987-11-01), Nishikawa et al.
patent: 4730521 (1988-03-01), Hayasaki et al.
patent: 4790215 (1988-12-01), Hamano
patent: 4856381 (1989-08-01), Funahashi et al.
patent: 4882952 (1989-11-01), Kashihara et al.
patent: 4967356 (1990-10-01), Mori
"Nissan Full-Range Electronically Controlled Automatic Transmission of the RE4R01A Type (A261C07)", published by Nissan Motor Co., Ltd. in Mar. 1987.

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