Variable force solenoid pressure control for an automatic transm

Details Variable force solenoid pressure control for an automatic transm Variable force solenoid pressure control for an automatic transm

1987-11-16

1989-05-30

Diehl, Dwight G.

Machine element or mechanism

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

Preselected indexed position

74866, B60K 4106

Patent

active

048339466

ABSTRACT:
A control valve circuit for an automatic transmission having a variable force solenoid valve that is supplied with feed pressure by a variable force solenoid pressure relief valve to produce a signal that acts on a main regulator valve thereby avoiding high pressure forces on said variable force solenoid valve.

REFERENCES:
patent: 3080768 (1963-03-01), Jania
patent: 3727487 (1973-04-01), Forster et al.
patent: 3750495 (1973-08-01), Ito et al.
patent: 3783713 (1974-01-01), Will
patent: 3859873 (1975-01-01), Miyauchi et al.
patent: 3918312 (1975-11-01), Espenschied et al.
patent: 4283970 (1981-08-01), Vukovich
patent: 4293002 (1981-10-01), Moriyama et al.
patent: 4351206 (1982-09-01), Lemieuv et al.
patent: 4388844 (1983-06-01), Arai et al.

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