摘要
为防止汽车产生测滑,针对汽车直接横摆力矩控制,提出了横摆角速度与质心侧偏角联合控制的模糊控制方法。横摆力矩控制采用分层控制方法,设计了模糊控制器和规则制动力分配方法。模糊控制器根据期望值和车辆状态决策出所需的附加横摆力矩,并通过规则制动力分配方法进行主动差动制动实现。采用Matlab/Simulink与Car Sim联合仿真对控制方法进行了仿真验证。结果表明:横摆角速度与质心侧偏角联合控制的横摆力矩模糊控制方法使汽车能够较好地跟踪期望,有效提高汽车极限工况下的行驶稳定性。
For the vehicle direct yaw moment control, a fuzzy control method for vehicle yaw rate and slip angle joint control is studied in this paper. The hierarchical control structure is adopted for direct yaw moment. The fuzzy controller and braking forces distribution rules are designed. According to reference vehicle model and the vehicle actual state,the fuzzy controller can compute required additional yaw moment. The yaw moment is achieved by active differential braking based on the brake forces distribution rules. The fuzzy control method is verified by using Matlab/ Simulink and CarSim cosimulation. The results show that yaw moment fuzzy control makes the vehicle follow the desired values better and enhance the vehicle stability compared with no control.
出处
《计算机仿真》
CSCD
北大核心
2014年第12期151-155,共5页
Computer Simulation
基金
国家自然科学基金青年科学基金项目(E51305190)
辽宁省教育厅项目(L2013253)
吉林大学汽车仿真与控制国家重点实验室开放基金项目(20111104)
关键词
直接横摆力矩控制
模糊控制
联合仿真
制动力分配
Direct yaw moment control
Fuzzy control
Co - simulation
Brake forces distribution rules
