Power-split transmission performance research with the method of lever analogy

摘要

Power-split transmission system was very complex in structure;the continuously variable transmitting performance of this system is difficult to analysis,which impeded the further research of this kind of transmission.In this research,universal series mathematical models of power-split transmission system were set up firstly.Then,the lever analogy analysis method was introduced into the power-split transmission performance analysis process,and the multi-range continuously variable transmitting performance of power-split transmission was described comprehensive.Finally,the method was used to analysis one real power-split transmission systems,ZF Friedrichshafen power,and the accuracy,validity and convenience of this method were verified.The result show that the method of mathematical model combine with lever analogy could analysis the power-split transmission system continuously variable transmitting performance more correctly,easily and rapidly,it could provide a more intuitive and efficiently analysis method for the further research of power-split transmission system.