Patent ID: 6637134
Filing Date: 2003-10-28
Classification: E01H

Abstract:
Snow track preparation machine with mill installed in a revolving manner and including a pump driven by a power source, a hydraulic motor connected to the pump on the delivery side and the return side, an actuator supported on the assembly frame and realized for rotation of the mill and driving wheels characterized by the fact that the power source is made up of a motor (2) which drives the driving wheels (5,6) and the pump (9) and the actuator (16) are influenced by a control unit (17) connected to a sensor of motor rpm nD with a sensor of the rpm of the driving wheels na1 and na2 with a sensor for the hydraulic motor of the moll and a sensor for the path actuator with the control unit (17) connecting the magnitudes detected by the sensors by means of an algorithm and controlling on the basis thereof the pump (9) and the actuator.