| 摘要 |
Determination values are obtained by calculating values for each partial model of a complete model base at each unit time, and by integrating absolute values of change amounts of the values and absolute value of change amount of a product of at least two values, according to the engine acceleration pattern. A set of the determination values including a specific determination value of a specific partial model having the most influence on a specific value calculated using the model base is selected, wherein the specific determination value is the largest among the determination values of all the partial models. A higher priority is assigned to a partial model with a higher determination value. The model base is determined by omitting a partial model from the complete model base in order of ascending priority until a desired processing load of calculating the specific value is obtained.
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