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为了提升越野汽车的动力性,且维持良好的经济性,采用试验和计算机辅助工程(CAE)仿真相结合的研究方法,对某越野汽车匹配的发动机低速扭矩特性进行系统分析,从油嘴、增压器和喷油器等几个方面探讨了提升发动机低速扭矩的可行性.最终通过车辆道路试验和与其他车型的对比标定,验证了发动机低速扭矩提升后,对整车动力性及经济性带来的优势,从而得出理论和匹配研究的合理性和正确性.该结论可以为其他类型汽车匹配设计提供参考依据.
In order to improve the motivity of the off-road vehicle and to maintain its economy, a low-speed torque characteristic of a cross-country automobile engine is systematically analyzed with a combination of test and computer aided engineering (CAE) simulation. The fuel injector and other aspects to explore the feasibility of improving engine low speed torque.At the end of the vehicle road test and comparison with other models to verify the engine low speed torque boost to the vehicle power and economy brought , And then draws the rationality and correctness of the theory and matching research.The conclusion can provide reference for other types of vehicle matching design.