Design of Compound CVT with 2K-H II Type Differential Gear

We designed the compound CVT (Continuously Variable Transmissions) by combining power circulation mode and power split mode, which have been proposed for connecting 2K-H II differential gear to the V-belt type CVU (Continuously Variable Unit), as an input coupled type. With the designed compound CVT, we carried out theoretical analysis and performance experiments. We proved that the compound CVT had a better performance than either of the power circulation mode or power split mode.