无级变速车辆发动机与变矩器共同工作特性

Analysis of Equilibrium Runing Lines of Engine and Hydraulic Torque Converter for a Vehiele with CVT

通过对无级自动变速传动系统液力变矩器性能的台架试验 ,建立了液力变矩器原始特性数学模型 ,分析了无级变速传动系统发动机与液力变矩器共同工作性能。针对液力变矩器作起步装置的无级变速车辆 ,提出了从起步性能、低速爬行性能、燃油经济性及加速性等方面进行合理匹配的方案及综合控制的方法 ,为进一步开发设计基于液力变矩器装置下的无级变速汽车奠定了理论基础。

The mathematical model of the torque converters is established based on test results. Equilibrium running lines of engine and hydraulic torque converter are analyzed. The idea of matching and controlling is put forward for CVT vehicle with torque converter in starting ability, crawl ability and fuel economical efficiency, which lays a foundation for the exploitation of CVT vehicle with torque converter.