Method and system for use in dynamometer testing of a motor vehicle
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Dec 9, 2014
filing date -
Dec 9, 2013
priority date (Note) -
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Abstract
The present invention relates to a method for use in dynamometer testing of a vehicle (100), the vehicle (100) including at least a first wheel shaft and at least one first vehicle power source for providing power to said first wheel shaft, said first wheel shaft being connected to a vehicle dynamometer system, said vehicle dynamometer system comprising a first controllable dynamometer power source (201) for providing power to said first wheel shaft, said first dynamometer power source being an electrical machine (201) comprising a stator and a rotor, said stator comprising a stator winding. The method includes: determining whether a first temperature (T1) is below a first temperature limit (Tlim1), and heating said electrical machine (201) by applying a current (Iheat) to said stator winding when said first temperature (T1) is below said first temperature limit (Tlim1).
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