Transfer case controller test fixture
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United States of America Patent
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Feb 20, 2001
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N/A
app pub date -
Sep 12, 1997
filing date -
Sep 12, 1997
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Abstract
A text fixture for testing a transfer case electronic control unit according to this invention comprises an eletro-mechanical shift mechanism having electronic inputs and outputs for coupling to electronic inputs and outputs output of the transfer case electronic control unit and an output shaft coupled to a transfer case load simulator. In a preferred embodiment, the transfer case load simulator comprises first and second oppositely wound torsion springs having identical torque characteristics coupled in opposed relation to the output shaft of the eletro-mechanical shift mechanism.
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