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US 2012/0239245 A1Published application
Numerical analysis method of a vehicle drive
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroshi Tamura
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AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroshi Tamura
Estimating the term…
A first analyzing step is a step that conducts numerical analysis of a flow field but does not conduct numerical analysis of a temperature field in a state in which a motor rotor is rotating. The second analyzing step is a step that conducts numerical analysis of both the flow field and the temperature field after the first analyzing step ends. Accordingly, before numerical analysis of the flow field and numerical analysis of the temperature field are conducted together, numerical analysis is conducted first on the flow field in first analyzing step before it is conducted on the temperature field. As a result, compared with when the second analyzing step is executed from the beginning without conducting the first analyzing step, the calculation load of the numerical analysis on an electronic calculator can be reduced, which enables the time that it takes to conduct the numerical analysis to be shortened.
A numerical analysis method of a vehicle drive unit that is provided with a moving body that moves inside a case and a cooling medium that is a fluid that fills a portion of the inside of the case and contacts at least a portion of the moving body, and in which the temperature of the fluid medium rises as the moving body continues to move, the numerical analysis method numerically analyzing a temperature field of the cooling medium and a flow field of the cooling medium, characterized by comprising:
Dependencies are inferred from the claim text.