Research on temperature management of range extender for off-road diesel engines after frontal lifting
Based on the research on the temperature management of the diesel engine with the range extender in the post-processing of the port front crane,the calibration optimization was carried out for the operating conditions of the front crane.The results show that the idle speed is very important for the tem-perature management of parking regeneration and driving regeneration.The HC emission at 1 200 r/min idle speed is 2×10-3 lower than that at 750 r/min during driving regeneration.The temperature is in-creased by 5 K/s during the parking regeneration process,and the first stage time of parking regeneration is shortened by 30%.Due to the short charging time,the original 1 200 s of the driving regeneration time is divided into three 400 s processes,which ensures the coordination of the regeneration process and the range extender charging process without affecting the customer's driving experience.
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