Control system for alleviating shock in automatic transmission

Details Control system for alleviating shock in automatic transmission Control system for alleviating shock in automatic transmission

1986-09-09

1988-03-15

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74868, B60K 4116

Patent

active

047305215

ABSTRACT:
An accumulator designed to alleviate a so-called N-D select shock is connected in a hydraulic control system for an automatic transmission such that it can also alleviate a 3-4 shift shock. The accumulator includes a piston and a spring biasing the piston. The spring force of the spring is appropriately set such that the piston starts moving against the spring in response to small pressure build-up of a drive range select pressure.

REFERENCES:
patent: 3623382 (1971-11-01), Chana
patent: 4125038 (1978-11-01), Hiramatsu
patent: 4274308 (1981-06-01), Iwanaga et al.
patent: 4430910 (1984-02-01), Lemieux et al.
patent: 4432255 (1984-02-01), Borman et al.
patent: 4462280 (1984-07-01), Sugano et al.

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