Measuring and testing – Simulating operating condition – Marine
Reexamination Certificate
2006-07-18
2006-07-18
Raevis, Robert (Department: 2856)
Measuring and testing
Simulating operating condition
Marine
Reexamination Certificate
active
07076997
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.
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Dunbar Stephen
Ellington Eric
Duell Mark E.
Honda Motor Co. Ltd.
Raevis Robert
Rankin, Hill Porter & Clark LLP
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