Method for controlling the operation of an arrangement of at least two electric machines, and motor vehicle
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United States of America Patent
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Apr 14, 2015
Grant Date -
Oct 9, 2014
app pub date -
Oct 26, 2012
filing date -
Nov 23, 2011
priority date (Note) -
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Abstract
A method for controlling the operation of an arrangement of at least two electric machines coupled to different wheels of a motor vehicle and connected to a battery which provides an actual minimum and maximum limiting current for the electric machines. Desired torques are provided for the electric machines by a drive control logic. A desired current resulting from the desired torque is ascertained for each electric machine, and the sum of the desired currents are compared with the maximum and minimum limiting current. If the sum lies outside an interval defined by the limiting currents, the desired currents are adjusted using at least one change rule such that the sum of the desired currents lies within the interval. Adjusted desired torques are determined from the adjusted desired currents and used to control the electric machines.
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