Pressure control apparatus for the automatic transmission of aut

Details Pressure control apparatus for the automatic transmission of aut Pressure control apparatus for the automatic transmission of aut

1975-10-03

1978-08-15

Scott, Samuel

Machine element or mechanism

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

Preselected indexed position

74863, B60K 4118

Patent

active

041063678

ABSTRACT:
A control generator starting from supplied data relative to the functioning of the transmission and of the motor, supplies a transfer voltage proportional to the line pressure. The control comprises a primary electrical loop containing a pressure tap and a secondary hydraulic loop comprising an electro-hydraulic transducer. The line pressure is thus controlled. The stability and control performance of the transmission are improved by means of electrical correction circuits. The apparatus may be adapted to any desired type of automatic transmission.

REFERENCES:
patent: 2065429 (1971-07-01), FRX
patent: 3703109 (1972-11-01), Irie et al.
patent: 3710647 (1973-01-01), Dach et al.
patent: 3726159 (1973-04-01), Mizote
patent: 3739661 (1973-06-01), Harrison
patent: 3752011 (1973-08-01), Casey et al.
patent: 3792631 (1974-02-01), Mori
patent: 3805640 (1974-04-01), Schneider et al.
patent: 3813964 (1974-06-01), Ichimura et al.

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