A bogie axle assembly having a housing, a spindle, a drive sprocket unit, and a planetary gear set. The drive sprocket unit may be fixedly disposed on a planet gear carrier of the planetary gear set. The spindle may be fixedly disposed on the housing. The drive sprocket unit may be rotatably supported by at least one roller bearing assembly that may be disposed between the spindle and the drive sprocket unit.

A bogie axle assembly having a housing, a spindle, a drive sprocket unit, and a planetary gear set. The drive sprocket unit may be fixedly disposed on a planet gear carrier of the planetary gear set. The spindle may be fixedly disposed on the housing. The drive sprocket unit may be rotatably supported by at least one roller bearing assembly that may be disposed between the spindle and the drive sprocket unit.

A bogie axle assembly having a housing, a spindle, a drive sprocket unit, and a planetary gear set. The drive sprocket unit may be fixedly disposed on a planet gear carrier of the planetary gear set. The spindle may be fixedly disposed on the housing. The drive sprocket unit may be rotatably supported by at least one roller bearing assembly that may be disposed between the spindle and the drive sprocket unit.

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 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.

A lawn mower having a control system, and a pair of driven wheels and a pair of electric motors for zero turn capabilities, is disclosed. The lawn mower has a steering wheel having a neutral wheel position. The control system includes one or more first sensors configured to collect orientation data of the lawn mower, a position sensor configured to detect a position of the steering wheel, memory for storing a target heading of the lawn mower, and a processor. The processor is configured to determine the target heading based on the position of the steering wheel, determine a current heading of the lawn mower based on the orientation data collected by the one or more first sensors, and transmit a course correction signal for at least one of the pair of electric motors based on a comparison between the current heading and the target heading.

A lawn mower having a control system, and a pair of driven wheels and a pair of electric motors for zero turn capabilities, is disclosed. The lawn mower has a steering wheel having a neutral wheel position. The control system includes one or more first sensors configured to collect orientation data of the lawn mower, a position sensor configured to detect a position of the steering wheel, memory for storing a target heading of the lawn mower, and a processor. The processor is configured to determine the target heading based on the position of the steering wheel, determine a current heading of the lawn mower based on the orientation data collected by the one or more first sensors, and transmit a course correction signal for at least one of the pair of electric motors based on a comparison between the current heading and the target heading.

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.