Shift shock suppression arrangement for automotive automatic tra

Details Shift shock suppression arrangement for automotive automatic tra Shift shock suppression arrangement for automotive automatic tra

1986-01-03

1988-03-08

Braun, Leslie

Machine element or mechanism

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

Preselected indexed position

74867, B60K 4124

Patent

active

047292652

ABSTRACT:
In order to obviate shift shock during shifting between second and third gears in a transmission wherein a front clutch and a band brake having apply and release chambers, an accumulator is connected to the circuit via which line pressure is supplied from a 2-3 shift valve in a manner that the engagement/release of the two friction elements is staged in a manner that reduces sharp fluctuations in the output shaft torque.

REFERENCES:
patent: 3733927 (1973-05-01), Uozumi et al.
patent: 3842693 (1974-10-01), Oberpichler
patent: 4125038 (1978-11-01), Hiramatsu
patent: 4161895 (1979-07-01), Ushijima
patent: 4274307 (1981-06-01), Iwanaga et al.
patent: 4274308 (1981-06-01), Iwanaga et al.
patent: 4445401 (1984-05-01), Ishimaru
patent: 4474084 (1984-10-01), Sugano et al.
patent: 4580466 (1986-04-01), Iwanaga
Nissan Motor Co., Ltd., 1975, Service Manual, "Nissan Automatic Transmission Model 3N71B".

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