A planetary gear train automatic limited slip differential may consist of a main differential, a planetary gear train differential controller, a left axle shaft, a right axle shaft, and a clutch. The planetary gear train differential controller may be composed of a first planetary gear train differential controller unit and a second planetary gear train differential controller unit. The first planetary gear train differential controller unit may be composed of a first planetary gear train and a first overrunning clutch connected to the first planetary gear train. The second planetary gear train differential controller unit may be composed of a second planetary gear train and a second overrunning clutch connected to the second planetary gear train.

Methods and systems for a locking differential are provided. The locking differential system includes an electromagnetic solenoid actuator configured to induce locking and unlocking of the differential and a circuit board assembly designed to programmatically control the locking and unlocking functionality. The circuit board assembly includes a multi-sensor sub-assembly having two or more sensor configured to monitor a position of the electromagnetic solenoid actuator.

The present disclosure relates to a limited-slip clutch system and method. In one aspect, the limited-slip clutch actuation system can include a hydraulic pump operated by a variable speed drive wherein the pump can be configured to generate hydraulic flow in a hydraulic circuit including an actuation branch line that actuates a clutch. The circuit may also include a flow regulating valve for regulating a hydraulic fluid flow rate through the hydraulic circuit wherein the flow regulating valve can be configured to prevent the hydraulic fluid flow rate from exceeding a set maximum flow rate regardless of a magnitude of the hydraulic pressure in the hydraulic circuit. In operation, the pump speed can be controlled based on a command pressure set point and the measured pressure in the actuation branch line and to minimize operational costs by operating the pump at a transition region of the system pressure-pump speed curve.

An axle disconnect and differential locking system for single or multiple axle vehicles which allows the vehicle to selectively engage and disengage an axle half shaft from the differential side gear. Additionally, the system allows the vehicle to selectively switch between locked and unlocked differential driving modes. The system has a first position, a second position and a third position. At the first position, the system is not meshingly engaged with the differential side gear or the differential case. At the second position, the system is meshingly engaged with the differential side gear but is not meshingly engaged with the differential case. At the third position, the system is engaged with the differential side gear and the differential case. In one embodiment the system is a sliding collar. According to another embodiment, the system includes an axle disconnect collar, a differential locking collar and a biasing member disposed therebetween.

In a differential locking mechanism, a first differential side gear is fixed on a first axle, a second differential side gear is fixed on a second axle, and a bull gear including an engagement part is disposed between the first and second side gears. A cylindrical part is provided on the first differential side gear unrotatably relative to the first differential side gear, and includes a circumferential portion surrounding the first differential side gear. A differential locking slider is fitted on the circumferential portion of the cylindrical part unrotatably relative to the cylindrical part and axially slidably. The differential locking slider is slidable in a direction to engage its engagement part with the engagement part of the bull gear, and in another direction to disengage its engagement part from the engagement part of the bull gear.

A differential, including: a gear housing; an epicyclic housing which is mounted in the gear housing in a manner allowing rotation about a gear axis; a planet carrier arranged in the epicyclic housing in a manner allowing rotation; a first output sun gear; a second output sun gear; a planetary arrangement, accommodated in the planet carrier, coupling the output sun gears in a manner allowing opposite rotation; a brake device generating a bridging torque which places a load on relative rotation of the first and second output sun gears, according to a magnitude of an axial force applied to the brake device; and an actuating mechanism for the purpose of generating said axial force applied to the brake device. The actuating mechanism is designed in such a manner that the first bridging torque generated by the brake device increases as a rotary drive torque applied to the epicyclic housing increases.

A differentia may include a metal plate interlocking with a pinion, and at least one permanent magnet fixable to a case of the differential to generate an eddy current in the metal plate upon a relative rotation of the metal plate.

A differentia may include a metal plate interlocking with a pinion, and at least one permanent magnet fixable to a case of the differential to generate an eddy current in the metal plate upon a relative rotation of the metal plate.

A torque vectoring differential constructed in accordance to the present disclosure includes a differential carrier rotatable about an axis. A pinion carrier can have at least one pinion gear mounted for rotation on at least a portion of the pinion carrier. First and second side gears can be meshed for engagement with at least one pinion gear. The first side gear can be engaged for rotation with a first axle shaft. The second side gear can be engaged for rotation with a second axle shaft. A first clutch can be operable to selectively lock the differential carrier and the pinion carrier with respect to one another for rotation about the axis. A second clutch can be operable to selectively lock the differential carrier to the first side gear. A third clutch can be operable to selectively lock the differential carrier to the second side gear.

Vehicle drive control systems, such as those, for example, configured to permit a vehicle to direct power to at least one drivable element (such as, for example, via a drive shaft, a supplemental drive, or a battery) to assist the vehicle in making a low-radius turn.