On/off and modulated/duty-cycled solenoid tester

Details On/off and modulated/duty-cycled solenoid tester On/off and modulated/duty-cycled solenoid tester

1996-06-27

1998-01-27

Noland, Thomas P.

Measuring and testing

Instrument proving or calibrating

Fluid pressure

731181, G01M 1302

Patent

active

057124205

ABSTRACT:
An apparatus for performing on/off or modulated/duty-cycled testing on a solenoid in a computer controlled automatic transmission when the solenoid is removed from the vehicle or while the solenoid is in the vehicle. The apparatus comprises: three jacks, a switch when actuated for performing a diode test, circuitry for electrically connecting the apparatus to the solenoid and preventing over current and over voltage surges, circuitry for performing the on/off testing, circuitry for performing the modulated/duty-cycled test and pneumatic components for supplying air pressure to the solenoid.

REFERENCES:
patent: 3273384 (1966-09-01), Flaughler
patent: 3302107 (1967-01-01), Flangler et al.
patent: 4593556 (1986-06-01), Wehr
patent: 4854165 (1989-08-01), Jay
patent: 5060177 (1991-10-01), Gregory et al.
patent: 5129259 (1992-07-01), View et al.
patent: 5467644 (1995-11-01), Schaffer
patent: 5515272 (1996-05-01), Sakai et al.

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