A drivetrain assembly for a vehicle having a propulsion system configured to drive first and second half shafts is provided. In one example, the drivetrain assembly includes a gearbox assembly configured to couple to the propulsion system, a planetary gear set selectively coupled to an output of the gearbox assembly, and a differential having a differential case, the differential configured to operably couple to the first and second half shafts. The drivetrain assembly operates in a tank steer mode by selectively grounding the differential case and connecting the output of the gearbox assembly to the first half shaft via the planetary gear set, such that the propulsion system rotates the first half shaft in the first direction and, via the differential, rotates the second half shaft in the opposite second direction.

A tank steer gear set assembly for a vehicle having at least one set of first and second axle shafts. The gear set assembly is configured to be operably coupled between a first portion and a second portion of the second axle shaft, and includes a compound planetary gear set having a carrier, a first clutch, and a second clutch. The gear set assembly operates in a tank steer mode by selectively grounding the carrier via the second clutch such that the second portion of the second axle shaft is rotated in a direction opposite the first axle shaft.

A tank steer gear set assembly for a vehicle having at least one set of first and second axle shafts. The gear set assembly is configured to be operably coupled between a first portion and a second portion of the second axle shaft, and includes a compound planetary gear set having a carrier, a first clutch, and a second clutch. The gear set assembly operates in a tank steer mode by selectively grounding the carrier via the second clutch such that the second portion of the second axle shaft is rotated in a direction opposite the first axle shaft.

Disclosed is a personal tracked vehicle comprising a platform mounted on top of a housing, the platform having central body, front flat members and rear flat members and a central axis. The platform is pivotally mounted to housing along the axis and pivotally movable between a first position and a second position. A pair of parallel right and left tracks is mounted to the housing below the platform, the right track being coupled to a right track drive and the left track being coupled to a left track drive. The track drives are operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower.

Disclosed is a personal tracked vehicle comprising a platform mounted on top of a housing, the platform having central body, front flat members and rear flat members and a central axis. The platform is pivotally mounted to housing along the axis and pivotally movable between a first position and a second position. A pair of parallel right and left tracks is mounted to the housing below the platform, the right track being coupled to a right track drive and the left track being coupled to a left track drive. The track drives are operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower.

The disclosure relates to double provided power split transmission with a drive shaft, with a first branch comprising a planetary gear arrangement with two sun gears, a first ring gear and a planetary web, on which double planetary gears are arranged, which mesh with the sun gears and with the first ring gear, one of the sun gears being coupled to the drive shaft, with an adjustable second branch, which can be partially connected to the first branch via the planetary gear arrangement and has at least two hydraulic units which can be energetically coupled to one another and can be operated in each case in both directions as a motor or pump, and with an output shaft which can be coupled to the drive shaft via the first branch and the second branch, the planetary gear arrangement being provided with a planetary reversing gear is assigned.

A controller provided in a bulldozer maintains the engagement of an inside steering clutch over a predetermined period beginning from a switching start point at which switching starts, when switching from a slow turn mode to a pivot turn mode, and when switching from the pivot turn mode to the slow turn mode, maintains the braking of an inside steering brake over a predetermined period beginning from a switching start point at which the switching starts.

A controller provided in a bulldozer maintains the engagement of an inside steering clutch over a predetermined period beginning from a switching start point at which switching starts, when switching from a slow turn mode to a pivot turn mode, and when switching from the pivot turn mode to the slow turn mode, maintains the braking of an inside steering brake over a predetermined period beginning from a switching start point at which the switching starts.