A wheel end disconnect assembly includes a housing, a shift ring, a shift fork and an actuator. The shift ring is supported for axial translation relative to the housing between a connected position in which the shift ring couples an input member to a wheel hub for rotation therewith and a disconnected position in which the input member and the wheel hub are rotatable relative to each other. The shift fork includes a first arm portion, a second arm portion, and an input portion extending from a junction of the first and second arm portions. The shift fork is pivotably coupled to the housing at the junction of the first and second arm portions. The actuator is configured to move the input portion to pivot the first and second arm portions such that the first and second arm portions translate the shift ring between the connected and disconnected positions.

A transfer for a four-wheel drive vehicle, the four-wheel drive vehicle configured to disconnect a propeller shaft from a power transmission path between an auxiliary drive wheels and a driving power source when the four-wheel drive vehicle travels by two-wheel drive, includes a second output rotating member and an oil pump. The second output rotating member is configured to output a driving power to the propeller shaft. The oil pump is configured to rotationally drive in conjunction with rotation of the second output rotating member via a first one-way clutch. The first one-way clutch is configured such that the oil pump supplies a lubrication oil to a wet clutch when the four-wheel drive vehicle travels forward by the four-wheel drive. The oil pump is configured to stop supplying the lubrication oil to the wet clutch when the four-wheel drive vehicle travels forward by the two-wheel drive.

Methods and systems are provided for an electromagnetic pulse disconnect assembly. In one example, an electromagnetic disconnect assembly includes an electromagnetic coil assembly including an electromagnetic coil, an armature cam including an annular ring and a plurality of bidirectional cam ramps extending in an axial direction from the annular ring, where the annular ring is adapted to have face-sharing contact with the electromagnetic coil assembly when the electromagnetic coil is energized and be spaced apart from the electromagnetic coil assembly when the electromagnetic coil is de-energized, and a cam follower a plurality of radially extending guides arranged around a circumference of the cam follower and spaced apart from one another via a plurality of elongate apertures, each of the plurality of elongate apertures adapted to receive one of the plurality of bidirectional ramps of the armature cam. The assembly may further include a latching system.

A traction control device and method for a four-wheel drive electric vehicle are disclosed. When the drive wheels of an electric vehicle spin, a drive force of the electric vehicle is controlled so as to restrain the spinning of the drive wheels and to secure the starting performance and acceleration performance of the electric vehicle.

One or more techniques and/or systems are disclosed for a transmission that provide power to a front axle, and fits in taller box to provide more room for the transmission. The transmission can comprise a front input shaft that receives rotational power from an engine. A front output shaft is coupled with a front axle to provide the rotational power, conditioned by the transmission, to the front axle. A rear riser gear set can be couple to the rear of the transmission to provide power from the bottom portion of the transmission to a bevel gear set that couples with, and provide rotational power to, a rear axle. In this way, the space between a rear axle centerline and front axle center line can be used by the transmission, allowing for a taller transmission to fit in the chassis.

A vehicle controller for reducing noise of a differential gear of a vehicle, the vehicle including: a ring gear teeth-engaged with a motor reducer, a differential case connected to the ring gear, a differential assembly including a differential gear provided inside the differential case, and a disconnector device connected to at least one gear among the differential gears, the vehicle controller including: an RPM measuring unit for measuring a speed of one vehicle wheel when the vehicle is driven by two wheels; a speed calculation unit for calculating a speed of the ring gear in consideration of the speed of the one vehicle wheel; and a driving unit for driving the ring gear by controlling the motor reducer based on the speed of the ring gear.

A wheel end disconnect assembly includes a housing, a shift ring, a shift fork and an actuator. The shift ring is supported for axial translation relative to the housing between a connected position in which the shift ring couples an input member to a wheel hub for rotation therewith and a disconnected position in which the input member and the wheel hub are rotatable relative to each other. The shift fork includes a first arm portion, a second arm portion, and an input portion extending from a junction of the first and second arm portions. The shift fork is pivotably coupled to the housing at the junction of the first and second arm portions. The actuator is configured to move the input portion to pivot the first and second arm portions such that the first and second arm portions translate the shift ring between the connected and disconnected positions.

A hybrid vehicle includes an engine, a first motor generator, a first clutch, a second clutch, a second motor generator, a power storage device, and an electronic control unit configured to control the engine, the first motor generator, the second motor generator, the first clutch, and the second clutch. The electronic control unit is configured to engage the first clutch and disengage the second clutch such that the first motor generator generates power using power from the engine and the hybrid vehicle runs using power from the second motor generator, when a vehicle speed is equal to or lower than a predetermined vehicle speed.

The invention includes first and second motors, first and second differential mechanisms, and first to eighth decoupling mechanisms. The first and second motors transmit power to left and right wheels. First differential mechanisms distribute the power from the first and second motors. The first and second mechanisms are interposed between the first differential mechanism and the left front wheel and between the differential mechanism and the left rear wheel. The third and fourth decoupling mechanisms are interposed between the first motor and the first decoupling mechanism and between the first motor and the second decoupling mechanism. The fifth and sixth decoupling mechanisms are interposed between the second differential mechanism and the right front wheel and the right rear wheel, respectively. The seventh and eighth decoupling mechanisms are interposed between the second motor and the fifth decoupling mechanism and between the second motor and the sixth decoupling mechanism.

Methods and systems are provided for an electromagnetic pulse disconnect assembly. In one example, an electromagnetic disconnect assembly includes an electromagnetic coil assembly including an electromagnetic coil, an armature cam including an annular ring and a plurality of bidirectional cam ramps extending in an axial direction from the annular ring, where the annular ring is adapted to have face-sharing contact with the electromagnetic coil assembly when the electromagnetic coil is energized and be spaced apart from the electromagnetic coil assembly when the electromagnetic coil is de-energized, and a cam follower a plurality of radially extending guides arranged around a circumference of the cam follower and spaced apart from one another via a plurality of elongate apertures, each of the plurality of elongate apertures adapted to receive one of the plurality of bidirectional ramps of the armature cam. The assembly may further include a latching system.