In a vehicle drive device, a second power source is connected to a first rotating element of a differential mechanism, and the other output shaft of a first output shaft and a second output shaft is connected to a third rotating element so as to be disconnectable and connectable by a disconnection-connection mechanism. A control device places the disconnection-connection mechanism in a disconnected state. When a second traveling mode in which the third rotating element is fixed to a fixing member through engagement of an engaging element is switched to a first traveling mode in which the disconnection-connection mechanism is placed in a connected state, the control device disengages the engaging element, executes synchronous control in which rotational speeds of the other output shaft and the third rotating element are synchronized by a second power source, and switches the disconnection-connection mechanism from the disconnected state to the connected state.

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user.

Drive device for a motor vehicle, includes a differential for distributing a torque that can be supplied via a drive shaft to two output shafts and a superimposition gear coupled with the differential one of the output shafts and an additional motor for superimposing torques supplied from the output shaft, from the differential and from the additional motor, wherein the differential is coupled via a torque reducing transmission ratio device with the superimposition gear, wherein the superimposition gear includes a switching device that can be controlled with a control device, wherein the superimposition gear superimposes in a first switching mode torques supplied to the switching device from the output shaft.

At the time of changing from an EV mode, in which a hybrid vehicle travels with the use of a second motor provided on an output side of a differential mechanism while torque that acts on any one of rotating elements of the differential mechanism is interrupted by a clutch, to an HV mode, in which the hybrid vehicle travels while transmitting output torque of an engine to a drive wheel, when the engine is started in a state where the clutch is slipped and torque is transmitted from the engine so as to increase the rotation speed of the first rotating element while the clutch is slipped, torque starts being output from a first motor such that torque input from the first rotating element to the differential mechanism to increase the rotation speed of the drive wheel is output from the third rotating element.

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user.

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user.

A limited slip differential (LSD) is mounted on a driven axle of a vehicle to drive left and right wheels. To control the LSD, a speed of the vehicle is determined. A value of a preload for application to the LSD is also determined. The value of the preload is based on a predicted engine torque and on the speed of the vehicle. A preload is applied to the LSD when the value of the preload is greater than zero.

In a vehicle drive device, a second power source is connected to a first rotating element of a differential mechanism, and the other output shaft of a first output shaft and a second output shaft is connected to a third rotating element so as to be disconnectable and connectable by a disconnection-connection mechanism. A control device places the disconnection-connection mechanism in a disconnected state. When a second traveling mode in which the third rotating element is fixed to a fixing member through engagement of an engaging element is switched to a first traveling mode in which the disconnection-connection mechanism is placed in a connected state, the control device disengages the engaging element, executes synchronous control in which rotational speeds of the other output shaft and the third rotating element are synchronized by a second power source, and switches the disconnection-connection mechanism from the disconnected state to the connected state.

A system for and method of shifting a drive configuration of an all-terrain vehicle (ATV) is provided. The system includes a shifter assembly, a gear case, and a linkage assembly extending therebetween. The shifter assembly includes a trigger lever for receiving a mechanical user input, thereby moving the shifter assembly between a locked configuration and an unlocked configuration. The linkage assembly translates the user input to the gear case, thereby causing the gear case to shift between an engaged configuration and a disengaged configuration, respectively. A linkage biasing member provides mechanical flexibility between the shifter assembly and the gear case, facilitating shifting on the fly. The trigger lever is operated by toggling it from a rest position to a deployed position. Upon user release, the trigger lever is automatically returned to its rest position for future engagement by the user.

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.