Engine intervention control method for different driving modes of a hybrid vehicle

Abstract

The present application relates to the field of automobile manufacturing, in particular to a hybrid vehicle engine intervention control method in different driving modes. The method comprises: collecting the noise reference in the pure electric mode; based on the subjective acceptable noise increment of customers in each driving mode, positively setting the differentiated in-vehicle sound pressure level target curve and engine order noise target curve; at different vehicle speeds, the engine speed limit value in each driving mode is calibrated by gradually increasing the engine speed and comparing with the noise target; in actual control, the best fuel consumption speed of the engine is obtained, and compared with the speed limit value corresponding to the vehicle speed in the current mode, and the smaller value is taken as the actual running speed of the engine. Through the differentiated NVH target setting and speed limit value strategy guided by customer expectations, the present application realizes the balance of power performance, economy and NVH comfort in different driving modes, and the method is efficient, accurate and has strong universality.

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