Method for operating a powertrain
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United States of America Patent
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Jan 31, 2017
Grant Date -
Jun 25, 2015
app pub date -
Jul 30, 2013
filing date -
Aug 2, 2012
priority date (Note) -
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Abstract
A method for operating a powertrain of a motor vehicle with two vehicle axles which can be driven by separate drive assemblies, wherein at least one of the two vehicle axles can be driven by an electromotive drive assembly, and wherein the at least one vehicle axle has two wheels and at least three axle portions, wherein a first axle portion has a first wheel, wherein the first and a second axle portion are coupled by a differential gear, wherein the second and a third axle portion are arranged so they can be connected together by a clutch, and wherein the third axle portion has a second wheel. During drive mode of the motor vehicle with the clutch open, the electromotive drive assembly is held at a standby rotation speed under active regulation by an electric drive control unit, wherein the standby rotation speed tracks a synchronization rotation speed.
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