Control system and method for a continuously variable transmission

A multimode stepless gear system, new condition clutch (H) formed instant is applying the lower the synchronous mode of transmission device function, a permitting the clutch by a actual ratio and a base, which do not ratio of the ratio is engaged with the base. The transmission system is arranged below the control of control system, wherein the control system is used for applying clutch is located on the pressure, and to a to the power transmission unification part of the adjusting of transmission end of the controller, applying the pressure to the clutch control the independent the control to the transmission, thus so the adjusting of speed changer difficult to receive the clutch is located on the pressure to exchange the force.