Calibration method of catalyst reaction model in automotive post-processing control strategy

The invention provides a calibration method of a catalyst reaction model in an automotive post-processing control strategy. The method comprises the following steps of: (1) determining a chemical reaction rate model, namely the rough range of a pre-exponential factor K and an activation temperature E of a chemical reaction in an Arrhenius chemical reaction rate equation,by taking the minimum deviation between a chemical reaction rate model value and a test value as a target through DOE calculation; and (2) on the basis of a detailed slice model, taking the minimum concentration deviation of a catalyst outlet component as a target, and carrying out one-by-one detailed calibration on the pre-exponential factor K, the activation temperature E, a correction term coefficient theta and the like through an optimization solver. According to the method, the scientific literacy requirement of model calibration on research and development personnel is reduced, the catalyst model development time is greatly saved, the pr