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针对开关型地棚半主动悬架系统控制算法中作用力转换时机不精确的问题,通过对车辆悬架系统状态量的分析,提出了以最小穿越速度为目标的改进的地棚控制算法,以降低悬架系统车轮动载荷指标,改善车辆的操纵稳定性.综合考虑悬置质量加速度和车轮动载荷指标,建立悬架系统综合性能评价准则,用以分析各改进算法对悬架系统改善的有效性.对标准地棚控制算法和改进的地棚控制算法的性能优化进行了仿真分析.仿真结果表明:所设计的以最小穿越速度为目标的改进的开关型地棚控制算法对操纵稳定性和综合性能指标分别提高了11.74%和10.50%,明显优于标准开关型地棚控制算法;通过对改进的开关型地棚控制算法的性能优化分析,可以将其综合性能指标提高11.40%.
Aiming at the inaccurate timing of the force conversion in the control algorithm of semi-active suspension system of switch-type shed, an improved control strategy of shed control based on the analysis of the state quantity of the vehicle suspension system is proposed. Reduce the wheel dynamic load index of the suspension system and improve the handling stability of the vehicle.Considering the acceleration of suspension mass and the wheel dynamic load index, establish the evaluation criteria of the comprehensive performance of the suspension system to analyze the effectiveness of the improved algorithm for the improvement of the suspension system The performance optimization of the standard roof control algorithm and the improved roof control algorithm is simulated and analyzed.The simulation results show that the improved switch roof control algorithm with the minimum traversing speed as the target has a great influence on the steering stability and The overall performance index increased by 11.74% and 10.50%, respectively, which is obviously better than the standard switch-type shed control algorithm. By comprehensively analyzing the performance of the improved switch-type shed control algorithm, its comprehensive performance index can be increased by 11.40%.