重型汽车离合器接合的变结构串级双环控制  

Variable Structure Cascade Double Loop Control to Engagement of Clutch of Heavy Truck

作　　者：李洪斌[1] 张承瑞[2] 陈潞[3] 

机构地区：[1]鲁东大学交通学院,山东烟台264025 [2]山东大学机械工程学院,山东济南250061 [3]鲁东大学管理学院,山东烟台264025

出　　处：《系统仿真学报》2007年第2期429-432,共4页Journal of System Simulation

基　　金：国家自然科学基金资助项目(50575129)。

摘　　要：通过重型汽车起步动态模型的分析,指出当在起步过程中保持发动机转速不变时可以根据驾驶员的意图对离合器的磨损以及驾驶员舒适性进行综合优化。着重分析了离合器接合点前后的冲击,根据分析结果提出了变结构串级双环控制发动机恒速的起步控制算法,针对离合器操纵系统的非线性,加速度环采用单神经元自适应 PID 控制算法。为验证算法的性能,建立了车辆起步过程仿真模型。仿真实验表明采用该算法可提高的起步过程的性能。By analyzing the dynamic model of the start-up process, it is pointed that if the engine speed follows an invariable small reference during the vehicle start-up process, the driver can gain the optimum objectives of small wear loss and comfort by operating the accelerator according to his intent. The discontinuity of the vehicle speed acceleration at the lock-up instant was analyzed emphatically. A variable structure cascade double loop controlling algorithm was proposed to keep the engine speed on a constant speed during the start up process. A neuron adaptive PID controlling algorithm was adopted in the acceleration loop to overcome the nonlinearity of the clutch operating system. In order to validate the performance of this algorithm, a simulating model was established. The results of simulation experiment indicate that it can improve the performance of the launch process.

关 键 词：干式离合器 起步 变结构串级双环控制 仿真 

分 类 号：U463.211[机械工程—车辆工程]