Test circuit for automatic transmission

Details Test circuit for automatic transmission Test circuit for automatic transmission

1990-03-09

1991-10-22

Cangialosi, Salvatore

Boots, shoes, and leggings

731181, G05B 1902

Patent

active

050601776

ABSTRACT:
A test circuit for computer-controlled automatic transmissions which includes a gear selection rotary switch providing enabling inputs to logic circuitry that controls a plurality of electronic switches to energize selected transmission control relays. The control relays then apply operating current to selected combinations of transmission valves to effect transmission operation. The test circuit also provides light indication of hydraulic pressure conditions in the various valve circuits, and push button switches for testing the condition of relays and solenoids.

REFERENCES:
patent: 4287565 (1981-09-01), Haubner et al.
patent: 4363105 (1982-12-01), Plassmeier
patent: 4646299 (1987-02-01), Schinabeck et al.
patent: 4764884 (1988-08-01), Noyori
patent: 4924391 (1990-05-01), Hirano et al.

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