摘要
采用系统辨识方法,建立了金属带式无级变速器(CVT)速比控制电磁阀、夹紧力控制电磁阀和离合器控制阀响应模型,并采用试验数据与理论分析相结合的方式建立了CVT速比响应模型与发动机及整车的响应模型。在该模型基础上,建立了CVT整车系统硬件在环仿真测试台。采用某国产CVT样车进行了实车试验,并将与实车试验相同的控制参数施加到模型上,观察模型的响应,与实车响应进行对比分析。结果表明,该硬件在环系统能够准确再现CVT的各项响应特性,可以利用该仿真系统进行控制策略和故障诊断系统的开发。
Use the system identification to get the mathematic model of ratio-control-valve,clamping-force-valve and the clutch-control-valve,and then the CVT ratio response model,engine model and the whole vehicle model were set up by combining the theory and the experimental study.Based on the whole developed model,the hardware-in-the-loop test bench was set up.With the test data of one domestic CVT prototype vehicle taken as the example to verify the developed hardware-in-the-loop test system,comparative results between model response and the real vehicle prototype response show that the developed hardware-in-the-loop test bench can reflect all the characteristics of CVT vehicle.Therefore,the proposed hardware-in-the-loop test bench can be used for developing control strategy and diagnostic system.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第11期27-31,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(50905152)
关键词
无级变速器
硬件在环仿真
系统辨识
Continuously variable transmission
Hardware-in-the-loop simulation
System identification
