The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 18, 2006

Filed:

May. 12, 2004
Applicants:

Stephen Dunbar, Fairborn, OH (US);

Eric Ellington, Marysville, OH (US);

Inventors:

Stephen Dunbar, Fairborn, OH (US);

Eric Ellington, Marysville, OH (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is directed to an apparatus for testing a plurality of on/off solenoid valves and a plurality of proportional solenoid valves of an automotive transmission. The apparatus includes an on/off valve switch for each of the on/off solenoid valves and a series of preset current switches for each of the proportional solenoid valves. An on/off solenoid circuit is electrically connected to the on/off valve switches and includes a plurality of outputs for connection to the on/off solenoid valves. In response to actuation of the on/off valve switches, the on/off solenoid circuit is operable to generate electrical actuation signals for transmission through the outputs to the on/off solenoid valves, respectively. Proportional solenoid circuits are electrically connected to the series of the preset current switches, respectively. Each proportional solenoid circuit has an output for connection to one of the proportional solenoid valves. Each proportional solenoid circuit is operable in response to selective actuation of the associated series of preset current switches to generate and transmit electrical preset current signals to one of the proportional solenoid valves through the output, wherein said preset current signals have different preset current levels.


Find Patent Forward Citations

Loading…