Blended braking management in powertrain systems
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United States of America Patent
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May 7, 2013
Grant Date -
May 3, 2012
app pub date -
Nov 1, 2010
filing date -
Nov 1, 2010
priority date (Note) -
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Abstract
A method for operating a powertrain system including a torque machine coupled to a drive wheel of a vehicle includes determining a regenerative braking capacity of the powertrain system. In response to a net operator torque request including a braking torque request, a friction braking torque command to operate a friction brake system and a regenerative braking torque request for the torque machine are coincidentally generated, a torque command is generated for controlling operation of the torque machine in response to the regenerative braking torque request, and the friction braking torque command is adjusted by an amount corresponding to a difference between the braking torque request and the regenerative braking torque request.
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