共查询到17条相似文献,搜索用时 156 毫秒
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利用模糊逻辑控制技术,设计出一种能够实现需求转矩在发动机和电机之间最优分配的模糊逻辑控制策略。在仿真软件Advisor下。分别进行同种道路循环工况下不同控制策略的仿真和同种控制策略在不同道路循环工况下的仿真。仿真结果表明,模糊逻辑控制策略比电动辅助控制策略更进一步提高了并联混合动力汽车的燃油经济性能、排放性能。具有良好的自适应能力和鲁棒性。 相似文献
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在兼顾发动机效率和排放前提下,考虑电池充放电平衡,提出了一种模糊逻辑控制策略.将其嵌入仿真软件ADVISOR中,并在不同道路循环和不同控制策略中进行仿真计算.结果表明,模糊逻辑控制有较好的经济性、鲁棒性,能合理分配发动机和电动机转矩,并保持电池SOC较小的变化范围. 相似文献
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混合动力汽车模糊逻辑控制策略的建模和仿真 总被引:1,自引:0,他引:1
并联混合动力汽车(PHEV)中内燃机和电机之间存在动力的耦合和分离过程,能量管理策略比较复杂。文章提出了基于模糊逻辑控制扭矩分配策略,建立了各功能组件模型,并利用ADVISOR2002的仿真环境,完成了该模糊逻辑扭矩控制策略和电气辅助控制策略仿真比较。结果表明,文章提出的模糊逻辑控制策略对提高混合动力汽车的动力性、燃油经济性和改善排放有明显的作用。 相似文献
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并联混合动力汽车扭矩管理的模糊控制与仿真 总被引:2,自引:0,他引:2
并联混合动力汽车中内燃机和电机之间存在动力的耦合和分离过程,能量管理策略比较复杂。为了进一步合理分配内燃机和电机的动力输出,增强其能量管理策略的鲁棒性,文中分析了电辅助控制策略的不足,提出了基于模糊逻辑控制的包含驾驶员扭矩识别和蓄电池功率平衡的并联混合动力汽车扭矩分配策略,并利用ADVI SOR2002的仿真环境,完成了该模糊逻辑扭矩控制模块的仿真。结果表明,模糊逻辑控制策略满足控制目标,对提高汽车的动力性和燃油经济性、改善排放、保证蓄电池的充放电功率平衡有明显的作用。 相似文献
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混合动力电动汽车模糊逻辑控制策略的研究与仿真 总被引:6,自引:0,他引:6
以四川汽车工业集团野马混合动力电动汽车设计要求为基础,提出了一种混合动力电动汽车模糊逻辑控制策略。这种策略通过对油耗和各排放参数动态地分配权重值确定出发动机的最佳转矩,然后再根据模糊控制原理,以电池SOC值、汽车驱动需求的输出转矩和电动机转速为模糊输入确定出发动机的实际输出转矩,最终实现整车油耗和排放的综合优化。通过在S imu link软件中搭建该控制策略的仿真模型并与基础的电力辅助控制策略相比较,证明了这种控制策略有利于整车运行经济性和环保性的提高。 相似文献
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以高效率和低排放的燃料电池汽车为研究对象,使用模糊控制对燃料电池混合动力汽车的能量分配进行实时管理,在满足功率跟随的条件下保证动力电池的充放电能力,以提高燃油经济性。本次研究中,以燃料电池发动机和动力电池组作为动力源,使用Matlab软件进行动力系统建模和模糊逻辑策略应用,最后进行了仿真计算。仿真结果显示经过优化的模糊控制能量管理可以为燃料电池汽车提供好的燃油经济性和系统效率。 相似文献
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A Traction Control System (TCS) is used to control the driving force of an engine to prevent excessive slip when a vehicle
starts suddenly or accelerates. The torque control strategy determines the driving performance of the vehicle under various
drive-slip conditions. This paper presents a new torque control method for various drive-slip conditions involving abrupt
changes in the road friction. This method is based on a PID plus fuzzy logic controller for driving torque regulation, which
consists of a PID controller and a fuzzy logic controller. The PID controller is the fundamental component that calculates
the elementary torque for traction control. In addition, the fuzzy logic controller is the compensating component that compensates
for the abrupt change in the road friction. The simulation results and the experimental vehicle tests have validated that
the proposed controller is effective and robust. Compared with conventional PID controllers, the driving performance under
the proposed controller is greatly improved. 相似文献
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X. Ran X. Zhao J. Chen C. Yang C. Yang 《International Journal of Automotive Technology》2016,17(5):817-827
A Traction Control System (TCS) is used to avoid excessive wheel-slip via adjusting active brake pressure and engine torque when vehicle starts fiercely. The split friction and slope of the road are complicated conditions for TCS. Once operated under these conditions, the traction control performance of the vehicle might be deteriorated and the vehicle might lack drive capability or lose lateral stability, if the regulated active brake pressure and engine torque can’t match up promptly and effectively. In order to solve this problem, a novel coordinated algorithm for TCS is brought forward. Firstly, two brake controllers, including a basic controller based on the friction difference between the two drive wheels for compensating this difference and a fuzzy logic controller for assisting the engine torque controller to adjust wheel-slip, are presented for brake control together. And then two engine torque controllers, containing a basic PID controller for wheel-slip control and a fuzzy logic controller for compensating torque needed by the road slope, are built for engine torque control together. Due to the simultaneous and accurate coordination of the two regulated variables the controlled vehicle can start smoothly. The vehicle test and simulation results on various road conditions have testified that the proposed method is effective and robust. 相似文献