摘要
为了有效提高轿车制动效率,建立了摩擦式制动器与非接触轮边缓速器集成系统控制模型,获得了缓速器制动力矩和集成系统总制动力矩随车轮转动角速度的变化关系;提出了通过脉冲宽度调制调节缓速器线圈通电电流从而改变集成系统总制动力矩的方法。利用建立的系统控制模型和控制策略对汽车制动性能进行仿真。仿真和实例分析表明,与传统的制动系统相比,摩擦式制动器与非接触轮边缓速器集成系统使制动时间缩短3.7 s,制动距离减少76.8 m。
In order to improve the vehicle brake efficiency,the controlling model of the integrated system including frictional brake and contactless wheel retarder is built,and the relationship of the retarder braking torque and whole torque with the wheel rotational angular velocity is obtained.According to the pulse width modulation regulated theory,the method for regulating the voltage of the retarder coil is presented to change the whole system torque.The vehicle brake performance is simulated according to the system controlling model and the control stragety.The simulation results show that,compared with the traditional system,the braking time of the integrated system reduces by 3.7 s,and the braking distance reduces by 76.88 m.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2011年第5期590-594,共5页
Journal of Nanjing University of Science and Technology
基金
高等学校博士学科点专项科研基金(20060299010)
关键词
摩擦式制动器
非接触
轮边缓速器
集成系统
制动
仿真
frictional brakes
contactless wheel retarders
integrated systems
braking
simulation
