Die cushion controller
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United States of America Patent
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Jun 22, 2010
Grant Date -
Mar 26, 2009
app pub date -
Mar 13, 2006
filing date -
Mar 16, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
until the cushion pressure exceeds the low pressure target value PL and reaches the high pressure target value PH. The cushion pressure overshooting the low pressure target value PL continues to follow the complementary target value PC, so that an overshooting amount occurring at a time point at which the cushion pressure reaches the high pressure target value PH can be reduced. As a result, pressure variation in the cushion pressure can be suppressed.
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