An isolation system for a vehicle having a rear frame attached to a front frame. The rear frame supports a greater portion of a total force applied to the vehicle than the front frame. The isolation system includes at least one isolating device positioned between the rear and front frames. The isolating device supports a portion of the total force applied to the vehicle in a direction in which the isolating devices is positioned. The isolation system includes a force limiting device positioned near the isolating device and a motion limiting torque rod attached to the rear and front frames. The force limiting device limits the amount of load applied to the isolating device above a maximum load. The motion limiting torque rod prevents or limits movement of the rear frame relative to the front frame in the direction in which it is aligned.

An isolation system for a vehicle having a rear frame attached to a front frame. The rear frame supports a greater portion of a total force applied to the vehicle than the front frame. The isolation system includes at least one isolating device positioned between the rear and front frames. The isolating device supports a portion of the total force applied to the vehicle in a direction in which the isolating devices is positioned. The isolation system includes a force limiting device positioned near the isolating device and a motion limiting torque rod attached to the rear and front frames. The force limiting device limits the amount of load applied to the isolating device above a maximum load. The motion limiting torque rod prevents or limits movement of the rear frame relative to the front frame in the direction in which it is aligned.

The invention relates to a protective covering (4) for sealing a flat spiral spring housing (2), to a flat spiral spring housing arrangement having a protective covering (4), and to a vehicle having a flat spiral spring housing arrangement of this type. The protective covering (4) has a first housing part (2A) and a second housing part (2B) which forms a housing cover, the first housing part (2A) forming, with the second housing part (2B), a receiving space for a flat spiral spring (3), and the two housing parts (2A, 2B) being rotatable with respect to one another. To this end, the flat spiral spring housing (2) has a gap between the first housing part (2A) and the second housing part (2B). The protective covering (4) has an annular disc (9) which extends in the radial direction, and a wall section (10) which adjoins an outer edge of the annular disc (9) and extends in the axial direction, it being possible for the protective covering (4) to be connected to the flat spiral spring housing (2) in such a way that, in a functional state in which it is connected to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, the protective covering (4) covers the gap between the first housing part (2A) and the second housing part (2B) of the flat spiral spring housing (2) from the outside.

The invention relates to a protective covering (4) for sealing a flat spiral spring housing (2), to a flat spiral spring housing arrangement having a protective covering (4), and to a vehicle having a flat spiral spring housing arrangement of this type. The protective covering (4) has a first housing part (2A) and a second housing part (2B) which forms a housing cover, the first housing part (2A) forming, with the second housing part (2B), a receiving space for a flat spiral spring (3), and the two housing parts (2A, 2B) being rotatable with respect to one another. To this end, the flat spiral spring housing (2) has a gap between the first housing part (2A) and the second housing part (2B). The protective covering (4) has an annular disc (9) which extends in the radial direction, and a wall section (10) which adjoins an outer edge of the annular disc (9) and extends in the axial direction, it being possible for the protective covering (4) to be connected to the flat spiral spring housing (2) in such a way that, in a functional state in which it is connected to the flat spiral spring housing (2) to form a flat spiral spring housing arrangement, the protective covering (4) covers the gap between the first housing part (2A) and the second housing part (2B) of the flat spiral spring housing (2) from the outside.

A method for reducing torsional shock of a driving system of an electric vehicle is provided. In the method, torsional torque of a part of the driving system is calculated by applying motor torque to a motor under the condition that a parking gear is engaged and monitoring a motor speed. Reverse torsional torque having the same magnitude as the calculated torsional torque is applied to the part of the driving system when release of the parking gear is requested, and then the parking gear is released to reduce shock caused by torsion of the part of the driving system when the parking gear is released.

A method for reducing torsional shock of a driving system of an electric vehicle is provided. In the method, torsional torque of a part of the driving system is calculated by applying motor torque to a motor under the condition that a parking gear is engaged and monitoring a motor speed. Reverse torsional torque having the same magnitude as the calculated torsional torque is applied to the part of the driving system when release of the parking gear is requested, and then the parking gear is released to reduce shock caused by torsion of the part of the driving system when the parking gear is released.

An endless track assembly that mounts to a vehicle drive linkage. The track assembly includes a belted track, drive sprocket and sets of internal idler/road wheels that support interior track surfaces. Road axles having an appended, radially extending flange couple to axle housings at the framework shaped to contain one or more resilient cushions and an axle wear plate. The resilient cushions are supported in mating cooperation with channels at the axle flange and channels and appendages at the axle housings to independently compress and expand with road axle movement relative to the track framework over undulating terrain.

A snow vehicle is disclosed comprising a uni-body frame having a forward engine compartment, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit located outside of the frame and directly coupled to the belt drive.

A snow vehicle is disclosed comprising a uni-body frame having a forward engine compartment, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit located outside of the frame and directly coupled to the belt drive.

Crawled vehicle for the preparation of ski pistes; the crawled vehicle comprising a frame; two wheels assemblies displaced at opposite side with respect to the frame; two crawls, each of them wounded respectively around to one of the two wheels assemblies; and at least one supporting device, for each wheels assemblies, coupled to at least two wheels of the wheel assembly and connected in an articulated jointed manner to the frame for coupling the at least two wheels of the wheels assembly to the frame; wherein the supporting device has a first supporting element, which supports one of the at least two wheels of the wheels assembly; and a second supporting element, which supports another of the two wheels of the wheels assembly; and wherein the first supporting element and the second supporting element are connected to one another through a first articulated joint in a first point.