A fan rotating speed determination method for GPF idle speed regeneration test

Abstract

The application discloses a fan rotating speed determination method for GPF idle speed regeneration test, and belongs to the technical field of automobiles. The method determines the fan rotating speed based on a model of turbocharger internal temperature and component surface temperature. The turbocharger internal temperature can be replaced by other related temperatures, including but not limited to engine outlet temperature and turbocharger surface temperature. The component surface temperature can be replaced by other related temperatures, including but not limited to water tank cover plate surface temperature and wire harness surface temperature. The method can quickly determine the fan rotating speed for each vehicle model with GPF regeneration demand, and the test on a test bench can ensure that the risk of GPF idle speed regeneration test can be checked at any time, thereby greatly shortening the development and verification period. In summary, the efficiency of GPF regeneration is ensured, and the risk of thermal damage of the vehicle is also ensured.

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