摘要
由于电动汽车结构较为复杂,行车环境不确定因素较多,致使电动汽车主动安全系统研究难度较大。为了提高车辆的安全性,以四轮独立驱动电动汽车为研究对象,建立了纵向动力学模型;从安全距离、制动控制器、制动力分配器三方面出发,设计了纵向主动避撞系统。提出了基于附着系数和驾驶意图的电动汽车纵向安全距离模型,有效地提升了纵向车辆安全系统的适应性。并采用dSPACE实时仿真软件对纵向避撞系统进行整车实验,验证了控制策略的合理性。
Because of electric vehicle complex structure and the uncertain driving environment, the electric vehicle active safety system research is difficult. In order to improve safety, taking four wheel independent drive electric vehicle as the research object, the longitudinal dynamic model was established.Starting from safe distance, braking controller and braking force distributor, longitudinal active collision avoidance system was designed. A n electric vehicle longitudinal safety distance model was proposed based on adhesion coefficient and driving intention, which effectively improved the longitudinal vehicle safety system adaptability. The dSPACE real-time simulation software was used to carry out the whole vehicle experiment. And the rationality of the control strategy was verified.
作者
李素华
LI Su-hua(School of Electromechanical ＆ Architectural Engineering, Jianghan University, Hubei Wuhan 430056, Chin)
出处
《机械设计与制造》
北大核心
2017年第7期111-114,共4页
Machinery Design & Manufacture
基金
湖北省教育厅科研项目(B2013159)
关键词
电动汽车
避撞系统
控制策略
系统仿真
Electric Vehicle
Collision Avoidance System
Control Strategy
System Simulation
作者简介
李素华，（1971-），女，湖北天门人，硕士研究生，副教授，主要研究方向：汽车生态工程
