Abstract: In order to research a automatic shift car with torque converter as a starter and lower speed transmission system, and metal pushing belt as a higher transmission equipment, on the base of torque converter performance experiment, the dynamic simulation model on a car with a hydro-mechanical continuously variable transmission is established and integrated control strategy on the metal belt are proposed. The characteristics on the ratios of torque converter and metal belt is analyzed during a cruise driving. The results can provide a theoretic method to design a car with a hydromechanical continuously variable transmission system.

Key words: Car Torque converter, Continuously variable transmission Control