Hydraulic system for controlling step less variable belt-driven conical pulley transmission, has torque sensor including torque sensor chamber, which is attached at hydraulic energy source and connected with set of pressing chambers

摘要

The system has a torque sensor (10) including a torque sensor chamber (14), which is attached at a hydraulic energy source and connected with a set of pressing chambers (31, 32). The pressing chambers are connected with the torque sensor chamber by a hydraulic resistance element (28) e.g. impedance, and connected with an additional pressure chamber (26), where pressure developed in the pressure chamber is lower than the pressure in the pressing chambers and/or the torque sensor chamber.