Shift shock suppression in automatic transmission

Details Shift shock suppression in automatic transmission Shift shock suppression in automatic transmission

1985-09-23

1987-12-22

Braun, Leslie

Machine element or mechanism

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

Preselected indexed position

74867, 74752C, B60K 4104

Patent

active

047139897

ABSTRACT:
A hydraulic control system for an automatic transmission, including a pressure source, a regulator valve for regulating the oil pressure from the source, a first hydraulic servo for setting the transmission in a high speed position upon receipt of output oil pressure of the pressure regulator valve, and a second hydraulic servo for setting the transmission in a low speed position upon receipt of the output oil pressure, wherein the hydraulic control system comprises:

REFERENCES:
patent: 3707890 (1973-01-01), Ito
patent: 3710630 (1973-01-01), Sumiyoshi et al.
patent: 3988951 (1976-11-01), Mair et al.
patent: 4036083 (1977-07-01), McQuinn
patent: 4056991 (1977-11-01), Sukai et al.
patent: 4125038 (1978-11-01), Hiramatsu
patent: 4161895 (1979-07-01), Ushijima et al.
patent: 4188839 (1980-02-01), Kubo et al.
patent: 4334441 (1982-06-01), Iwanaga et al.
patent: 4369671 (1983-01-01), Matsumoto
patent: 4476747 (1984-10-01), Kawamoto

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