Method to control an electric motor of a hydraulic system of a transmission in a vehicle
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United States of America Patent
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Feb 20, 2018
Issued Date -
N/A
app pub date -
Sep 2, 2016
filing date -
Sep 3, 2015
priority date (Note) -
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Abstract
A method to control an electric motor of a hydraulic system of a transmission in a vehicle; the hydraulic system has a circulation pump, which allows a lubricant oil to circulate, and/or an actuation pump, which provides the hydraulic pressure needed to operate the transmission, a carrier shaft on which the pumps are mounted, and the electric motor designed to cause the rotation of the carrier shaft; the steps provided are: determining a requested torque to be applied by the electric motor to the carrier shaft; determining a requested rotation speed to be imparted by the electric motor to the carrier shaft; and controlling the electric motor so as to pursue the requested torque and the requested rotation speed.
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