Generator powered electrically heated diesel particulate filter
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United States of America Patent
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Mar 18, 2014
Grant Date -
Nov 28, 2013
app pub date -
Jan 18, 2008
filing date -
Aug 10, 2007
priority date (Note) -
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Abstract
A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.
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