METHOD FOR FAST TRANSIENT THERMAL ANALYSIS TO SIMULATE A VEHICLE DRIVE CYCLE
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United States of America Patent
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Jul 12, 2017
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Jul 12, 2016
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Abstract
A full-vehicle thermal model of a subject vehicle including a plurality of components can be generated. An experimental design includes input variables and output variables for each of the components under steady-state operating conditions. A meta-model is generated for each of the components based upon the input variables and the output variables. A time history including a time-based variation of the input variables is obtained for a plurality of drive cycles. A time history for a heat transfer coefficient and a film temperature for each of the components is determined based upon the meta-models for the components and the time histories for the plurality of input variables. The time histories for the heat transfer coefficient and the film temperature for the components are provide to a lumped-parameter thermal solver as time-varying boundary conditions, and a time-temperature profile for one of the components is determined employing the lumped-parameter thermal solver.
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