Shifter with actuator incorporating magnetic unlock mechanism
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United States of America Patent
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Aug 24, 2010
Grant Date -
Jan 10, 2008
app pub date -
Jul 3, 2007
filing date -
Jul 5, 2006
priority date (Note) -
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Abstract
A shifter includes an actuator, such as a shape memory alloy wire, to control movement of a set of strategically placed magnets on lever-position-controlling components of a vehicle transmission shift lever. In one arrangement, the actuator controls movement of a carrier carrying one or more of the magnets, the magnets controlling a position of a blocking member to prevent moving a pawl out of park position until predetermined vehicle conditions are met. Alternatively, the magnets can be carried by a cam, or slide, or wheel.
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