A drive system for a vehicle includes a plurality of electric traction motors, each mechanically coupled to at least one drive wheel to generate traction. At least one traction power converter is connected on an AC voltage side to at least one electric traction motor to supply the electric traction motor with electric power. A traction control unit for controlling at least one traction power converter is provided and is designed to control the at least one traction power converter while the vehicle is moving based on electrical output alternating quantities of the at least one traction power converter. A rotational movement of the at least one drive wheel of the vehicle during standstill of the vehicle is not detected by a separate detection unit based on the output alternating quantities.

Some implementations can include a zero turn radius utility vehicle that is operated in a standing position by an operator using foot controls provided on the utility vehicle. Accordingly, the operator's hands are free to operate handheld equipment (e.g., a line trimmer, edger, blower, etc.) while the operator controls the utility vehicle via the foot controls. Further, the utility vehicle may have a single third wheel (and no mower deck or other deck or protrusion) extending from the front of the vehicle frame so as to minimize any protrusions to the front of the vehicle, which can permit the operator to work on the ground in front of the utility vehicle using handheld equipment without interference from a mower deck, while remaining in a standing position on the utility vehicle and being able to simultaneously control the utility vehicle (via foot controls) and perform work with handheld equipment.

In the vehicle control system, a controller may perform first regenerative control that causes a motor generator to perform regeneration so as to apply a braking force to a vehicle when the accelerator is off and, when the accelerator is off and a steering is turned, perform second regenerative control that causes the motor generator to perform regeneration so as to apply a braking force to the vehicle in order to control the vehicle attitude by generating a deceleration that corresponds to a steering angle in the vehicle in addition to the first regenerative control.

A powered balancing mobility device that can provide the user the ability to safely navigate expected environments of daily living including the ability to maneuver in confined spaces and to climb curbs, stairs, and other obstacles, and to travel safely and comfortably in vehicles. The mobility device can provide elevated, balanced travel.

An electric automotive vehicle gross vehicle rating of greater than 10,000 pounds includes an electric powertrain connected to the frame and positioned at a base of the frame. The vehicle includes a first central axis, and the weight of the electric powertrain is centered about the first central axis. All drivetrain components of the vehicle other than the electric powertrain may be positioned above the base of the electric powertrain. The vehicle includes two electric drive units configured to drive the front and rear axles respectively. The electric drive units consist of an electric motor, motor controller, two speed electrically actuated gearbox, electrically actuated park lock, and electrically actuated locking differential. The drive units transmit power to inboard mounted brakes, which in turn are connected by constant velocity driveshaft to the wheel hubs where a further final gear reduction resides. Additionally, the suspension of the vehicle utilizes a dynamically adjustable hydraulic suspension that is capable of automatically leveling the vehicle and also provides capability to adjust nominal vehicle ride height. The vehicle is capable of multiple modes of operation, and in one mode the vehicle is able to export electrical power for usage outside of the vehicle. The vehicle body has been designed in multiple embodiments, including a sport utility model and pickup truck model. Additionally, each embodiment is designed with available two door and four door variants. All vehicle variants utilize the aforementioned common powertrain and chassis.

An electric automotive vehicle gross vehicle rating of greater than 10,000 pounds includes an electric powertrain connected to the frame and positioned at a base of the frame. The vehicle includes a first central axis, and the weight of the electric powertrain is centered about the first central axis. All drivetrain components of the vehicle other than the electric powertrain may be positioned above the base of the electric powertrain. The vehicle includes two electric drive units configured to drive the front and rear axles respectively. The electric drive units consist of an electric motor, motor controller, two speed electrically actuated gearbox, electrically actuated park lock, and electrically actuated locking differential. The drive units transmit power to inboard mounted brakes, which in turn are connected by constant velocity driveshaft to the wheel hubs where a further final gear reduction resides. Additionally, the suspension of the vehicle utilizes a dynamically adjustable hydraulic suspension that is capable of automatically leveling the vehicle and also provides capability to adjust nominal vehicle ride height. The vehicle is capable of multiple modes of operation, and in one mode the vehicle is able to export electrical power for usage outside of the vehicle. The vehicle body has been designed in multiple embodiments, including a sport utility model and pickup truck model. Additionally, each embodiment is designed with available two door and four door variants. All vehicle variants utilize the aforementioned common powertrain and chassis.

A method for controlling the regenerative braking torque of a vehicle having a data processing unit for detecting a first information representing a deceleration request of the vehicle, detecting a second information representing a speed of the vehicle, and a first moving member of the vehicle and a second moving member of the vehicle. The method includes determining temperatures of different braking components on different axles, as well as the state of a battery module and a traction and regenerative braking module. The method also includes determining a regenerative braking power dynamic distribution ratio between the first and second axles. A regenerative braking torque is provided to one of the modules.

Some implementations can include a zero turn radius utility vehicle that is operated in a standing position by an operator using foot controls provided on the utility vehicle. Accordingly, the operator's hands are free to operate handheld equipment (e.g., a line trimmer, edger, blower, etc.) while the operator controls the utility vehicle via the foot controls. Further, the utility vehicle may have a single third wheel (and no mower deck or other deck or protrusion) extending from the front of the vehicle frame so as to minimize any protrusions to the front of the vehicle, which can permit the operator to work on the ground in front of the utility vehicle using handheld equipment without interference from a mower deck, while remaining in a standing position on the utility vehicle and being able to simultaneously control the utility vehicle (via foot controls) and perform work with handheld equipment.

A drive unit assembly. The drive unit includes a motor drivingly connected to a motor output shaft which in turn is drivingly connected to a sun gear of a gear assembly. The gear assembly further includes a gear assembly housing, one or more planetary gears and a pinion gear. At least a portion of the one or more planetary gears are drivingly connected to the sun gear, the gear assembly housing and a plurality of gear teeth circumferentially extending from an inner surface of a drive unit housing. The pinion gear has a first side and a second side, where the second side of the pinion gear is integrally connected to a first end portion of the gear assembly housing. Drivingly connected to the pinion gear is a differential ring gear of a differential assembly having a first side gear, a second side gear and one or more bevel gears.

A hill descent system for a vehicle and a control method thereof comprising: wheels; wheel speed sensors used for detecting the speeds of the wheels; motors used for selectively driving or braking the wheels; a motor controllers, for controlling the working states of the motors; resolver sensors for detecting the rotational speeds of the motors; and a vehicle control unit for determining the actual downhill speed of the vehicle and adjusting the working states of the motors to control the descent of the vehicle.