A snow roller accessory for use on a snow blower device installed on a mechanical vehicle comprising a support frame having a first end and a second end; a first bracket coupled to the first end, and a second bracket coupled to the second end; a first ball bearing member attached to the first bracket, and a second ball bearing member attached to the second bracket; a cylinder rotationally connected to the first and second ball bearing members; and at least one hydraulic piston having a upper end and a lower end, wherein the at least one hydraulic piston is configured to adjust the snow roller accessory in relation to a ground level.

Apparatus for hardening the surface of a snow and/or ice covered trail which includes apparatus for travel over the snow and/or ice covered terrain that includes means to remove entrained air from snow and/or ice particles proximate to the apparatus; means for redistribution of the dispersed snow and/or ice laterally and axially with respect to the apparatus incident to movement of the apparatus after dispersing has occurred; and means for compacting snow and/or ice redistributed in the means for redistributing to increase the hardness of the snow and/or ice that has been redistributed.

Apparatus for hardening the surface of a snow and/or ice covered trail which includes apparatus for travel over the snow and/or ice covered terrain that includes means to remove entrained air from snow and/or ice particles proximate to the apparatus; means for redistribution of the dispersed snow and/or ice laterally and axially with respect to the apparatus incident to movement of the apparatus after dispersing has occurred; and means for compacting snow and/or ice redistributed in the means for redistributing to increase the hardness of the snow and/or ice that has been redistributed.

A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. Relative orientations and attitudes between motive and working components can be determined using optical sensors and cameras. The system can also be used to guide multiple vehicles in relation to each other.

A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. Relative orientations and attitudes between motive and working components can be determined using optical sensors and cameras. The system can also be used to guide multiple vehicles in relation to each other.

An unmanned mobile device for treating a snow covered surface having transport means adapted to the movement on snow and/or ice is disclosed. The device has compressing means of the snow for exerting a compression force on the snow in order to increase the specific weight thereof and/or varying means of the temperature of the surface of the snow.

An unmanned mobile device for treating a snow covered surface having transport means adapted to the movement on snow and/or ice is disclosed. The device has compressing means of the snow for exerting a compression force on the snow in order to increase the specific weight thereof and/or varying means of the temperature of the surface of the snow.

A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine-vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. Relative orientations and attitudes between motive and working components can be determined using optical sensors and cameras. The system can also be used to guide multiple vehicles in relation to each other.

A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine-vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. Relative orientations and attitudes between motive and working components can be determined using optical sensors and cameras. The system can also be used to guide multiple vehicles in relation to each other.

Piste grooming vehicle and clearing blade for a piste grooming vehicle. The piste grooming vehicle has a clearing blade arranged at the front and includes a middle part and two side parts swivellably movable relative to the middle part, a setting arrangement for adjusting the middle part and/or the side parts and at least one manually operable actuating element arranged inside a cab for operating the setting arrangement. An electronic control unit is connected between the actuating element and the setting arrangement and operates the setting arrangement with a timed sequence of control commands for achieving at least one control function for the side parts and/or the middle part from an initial position to an end position preset by the control function.