| 基于电动伺服系统的制动能量回收控制策略研究 |
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| 引用本文： | 高会恩,初亮,郭建华,何强.基于电动伺服系统的制动能量回收控制策略研究[J].农业机械学报,2017,48(7):345-352. |
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| 作者姓名： | 高会恩 初亮 郭建华 何强 |
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| 作者单位： | 吉林大学,吉林大学,吉林大学,吉林大学 |
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| 基金项目： | 国家高技术研究发展计划（863计划）项目（2012AA110903）和吉林省重点科技攻关项目（20170204085GX） |
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| 摘 要： | 基于电动伺服系统对制动能量回收控制策略进行研究。首先对电动伺服制动系统的部件组成和工作机理进行分析;然后取车速和制动强度双参数对制动模式进行划分,并兼顾整车经济性和车辆安全性对电液制动力进行协调分配,使用制动强度、初始车速、电池SOC对电动机制动扭矩进行修正;分析了轮缸压力控制理论,并给出压力控制需求,基于电动伺服系统提出前馈加三闭环反馈的轮缸压力控制算法,实现轮缸压力的精确控制,通过仿真跟随正弦曲线目标压力对提出的算法进行验证,结果表明此压力控制算法可以满足控制需求;最后在纯电动整车平台上对提出的制动力分配策略和压力控制算法进行验证,并以制动能量回收率为节能评价指标,对制动能量回收策略进行经济性评价,试验结果验证了提出的制动力分配策略和压力控制算法的有效性和可行性。该制动能量回收策略能显著提高制动能量回收率,改善整车经济性。
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| 关 键 词： | 电动伺服系统 制动能量回收 制动力分配 压力控制 |
| 收稿时间： | 2017/2/21 0:00:00 |
Control Strategy of Braking Energy Recovery Based on Electric Servo System |
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| GAO Huien,CHU Liang,GUO Jianhua and HE Qiang.Control Strategy of Braking Energy Recovery Based on Electric Servo System[J].Transactions of the Chinese Society of Agricultural Machinery,2017,48(7):345-352. |
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| Authors: | GAO Huien CHU Liang GUO Jianhua and HE Qiang |
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| Affiliation: | Jilin University,Jilin University,Jilin University and Jilin University |
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| Abstract: | With the development of new-energy vehicles, braking energy recovery as an important means to save energy and protect environment of the new-energy vehicles causes attention widely. The control strategy of braking energy recovery based on electric servo system was studied. Firstly, the operational principle and key components of the electric servo system were analyzed and the braking modes were divided based on the vehicle speed and braking intensity. Secondly, the distribution strategy of braking force considering the economy and security of the vehicle was researched. The motor braking force was corrected by using the intensity of the brake, vehicle speed and SOC. The control theory of pressure was analyzed and control requirements were provided. The pressure-control strategy was studied based on the feedforward and feedback, aiming to control the pressure precisely and validate the control results of pressure by using Matlab/Simulink and AMESim co-simulation. Finally, the control strategy of the braking energy recovery was validated by the real-vehicle test and the economy of the vehicle was evaluated by using the rate of braking energy recovery. The rate of braking energy recovery of NEDC cycle can reach 71.38%. The results showed that the distribution strategy of braking force and the pressure control algorithm were valid and feasible and the control strategy of braking energy recovery can increase the rate of braking energy recovery and raise the economy of the vehicle significantly. Therefore, the control strategy of braking energy recovery based on electric servo system was valid and feasible. The control strategy presented can provide a useful reference for the design of braking energy recovery system for electric vehicles. |
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| Keywords: | electric servo system braking energy recovery distribution of braking force pressure control |
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