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建立电动轮汽车差速转向和整车三自由度动力学模型,提出电动轮汽车差速转向系统转向路感、转向灵敏度、转向稳定性的概念及量化公式,集成蒙特卡罗仿真的描述取样、带精英解的非劣前沿分级遗传算法和Taguchi鲁棒性设计方法,以转向路感和转向灵敏度为优化目标、转向灵敏度和转向稳定性为约束条件,对电动轮汽车差速转向系统参数进行集成优化设计.仿真结果表明:基于质量工程集成优化的电动轮汽车差速转向系统可在保证系统具有较好的转向稳定性、转向灵敏度基础上,有效提高系统的转向路感和转向灵敏度,为电动轮汽车差速转向系统的设计和优化提供理论基础.
The dynamic steering model of three-degree-of-freedom vehicle with electric steering wheel and the three-freedom degree of the whole vehicle are established. The concept and quantification formula of steering sensation, steering sensitivity and steering stability of the electric steering wheel differential vehicle are put forward. The integrated sampling of Monte Carlo simulation, Non-inferior frontier classification genetic algorithm with elitist solution and Taguchi robust design method, the steering sensitivity and steering sensitivity are taken as the optimization objectives, steering sensitivity and steering stability as constraints, and the parameters of the electric car differential steering system are integrated The results of simulation show that the differential wheel steering system based on the integrated optimization of the quality engineering can improve the steering sense and steering sensitivity of the system on the basis of ensuring the steering stability and steering sensitivity of the system, Provide the theoretical basis for the design and optimization of the wheel differential steering system.