共查询到19条相似文献,搜索用时 109 毫秒
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新的轮毂电机驱动电动车电子差速控制系统研究 总被引:11,自引:0,他引:11
本文针对轮毂电机驱动的电动车,提出了一种新的电子差速方案,并设计了基于TMS320F2407 DSP的双轮轮毂电机电子差速协调驱动控制系统,且通过软件设计的改进即实现了单电流传感器检测相电流,介绍3.3~5V的接口电路,提高了转子位置传感器信号检测准确性等,实验结果证明了新方案的正确性。 相似文献
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电动车将成为21世纪的重要交通工具,文中介绍电动车电驱动的技术发展趋势,当代电动车电驱动的技术水平,指出电动车将是控制电机一个新的市场,前景广阔。 相似文献
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基于TMS320LF2407 DSP的特点,设计了新的双轮独立驱动电动车控制系统,通过改进软件设计,实现了单电流传感器检测相电流,提出了新的转子位置检测方法,介绍了实用的3.3~5 V接口电路等,实验结果证明了新方案的有效性. 相似文献
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Xiaoshuai Xin Haichao Shan Yang Yang 《IEEJ Transactions on Electrical and Electronic Engineering》2016,11(3):374-383
An induction motor drive system is widely used in electric vehicles (EVs). However, most control strategies of these EVs focus only on control of the induction motor without considering the switching of different driving conditions and the changing of motor parameters. The upper limits of the torque generated by the motor are different under different motor parameters and driving conditions, which may lead to the fluctuation of the driving torque and affect the comfort and safety of the driver. This paper proposes a vector‐control‐based flexible control strategy to deal with this problem. First, the threshold values of the automatic speed regulator (ASR) and the automatic voltage regulator (AVR) could change with respect to the state variables of the motor including the change in driving conditions and some motor parameters; second, a backward proportional integral controller, which has a dynamically adjustable threshold, is added to the output of the ASR and AVR to achieve the flexibility of driving torque. Finally, a calculator that has threshold value is added to the input of the ASR and AVR controller. The results of simulation show that the designed flexible control strategy can achieve the stability of motor current, torque, and speed during the switching of different driving conditions. © 2016 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. 相似文献
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在规模化电动汽车接入电网背景下,协调控制电动汽车群的充放电功率,可使之成为对电网有益的储能调频工具。文中从剩余电量的角度研究了电动汽车集群的自组织分类方法,设计了一个自组织神经网络,将电动汽车群根据电量划分为几个在数学空间上相近的类。以聚类结果为基础,根据不同类中电动汽车的电量水平,提出一种自适应调节下垂系数的电动汽车充放电控制终端变参数下垂调频控制方法。仿真结果表明,应用文中提出的控制方法,规模化接入电网的不同电量水平的电动汽车将自组织地按各自容量比例分担电网峰值负荷、消纳电网富余电能,满足电网调频需求。 相似文献
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Tetsuya Suto Makoto Ito Akeshi Takahashi Ryuichiro Iwano Takafumi Hara 《Electrical Engineering in Japan》2023,216(3):e23444
We are developing a small and lightweight direct-drive system toward the realization of in-wheel electric vehicles (EVs). To increase the power density of the motor, we developed a direct-cooling motor that immersed the core, coils, and magnets in cooling oil and improved cooling efficiency. Moreover, we performed measurements of frictional loss, measurement of pressure drop, and a continuous heat-run test on the test bench. The results demonstrated that direct cooling is effective and continuous operation can be achieved. Additionally, it was found that the coil temperature can be controlled by the flow rate of the cooling oil. In this paper, we report on the concept of direct cooling and the measurement results. 相似文献
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