SIMULATION METHOD AND SIMULATION DEVICE FOR HEAT GENERATION IN CYLINDER

摘要

PROBLEM TO BE SOLVED: To accurately simulate heat generation in a cylinder with a small computation load regarding a simulation method and a simulation device for heat generation in the cylinder.;SOLUTION: A heat generation rate dQ/dθ which is the change rate of a heating value Q in the cylinder to a crank angle θ is computed based on a Wiebe function model. At this time, efficiency k which is a number to be 0k1 is obtained as efficiency with which heat input Q_fuel in the Wiebe function model is converted into the heating value Q. Multiplied by the obtained efficiency k, the heat generation rate dQ/dθ is computed based on the Wiebe function model.;COPYRIGHT: (C)2007,JPO&INPIT