Abstract: A transmission (G) for a motor vehicle includes an electric machine (EM1), a first input shaft (GW1), a second input shaft (GW2), an output shaft (GWA), three planetary gear sets (P1, P2, P3), and at least six shift elements (A, B, C, D, E, F). Different gears are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F), and different operating modes are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) in interaction with the electric machine (EM1). A drive train for a motor vehicle with the transmission (G) and a method for operating the transmission (G) are also provided.

Abstract: A control device (10) for a parking brake device has an electronic device (12) by means of which, in the event of failure of a power supply system of a vehicle equipped with the control device (10) and the parking brake device during a procedure for parking the vehicle, at least one activation signal (14) can be output to a triggering device (16) of the parking brake device, so that the triggering device (16) can be activated by means of the at least one activation signal (14) and the parking brake device can be transferred to a locking mode by means of the activated triggering device (16), such that the vehicle is locked in its current parking position by means of the parking brake device present in its locking mode.

Abstract: A planetary gear unit includes a first gear, a second gear, and a third gear arranged coaxially while allowed to rotate relatively. A first planetary gear and a second planetary gear are integral, and a third planetary gear and a fourth planetary gear are integral. The planetary gears are rotatably supported by a carrier. The first planetary gear is meshed with the first gear, the second planetary gear is meshed with the second gear, the third planetary gear is meshed with the second gear, and the fourth planetary gear is meshed with the third gear. A gear ratio between the first planetary gear and the first gear is different from a gear ratio between the second planetary gear and the second gear, and a gear ratio between the third planetary gear and the second gear is different from a gear ratio between the fourth planetary gear and the third gear.

Abstract: The invention relates to a power-shift multi-speed transmission (10), comprising at least one stepped planet gear (20), which revolves around a first sun gear (18) and in a first ring gear (26). The first ring gear (26) is held on a lockable freewheel (28). A first planet gear step (22) of the stepped planet gear (20) revolves in the first ring gear (26), while a second planet gear step (24) revolves in a second ring gear (36), with which at least one brake (34) is associated.

Abstract: A clutch assembly for the drive train of a motor vehicle includes a ratchet pawl carrier, which can be coupled to a first coupling element in a rotationally fixed manner, and a ratchet pawl counter element, which can be coupled to a second coupling element in a rotationally fixed manner. In a coupled state, ratchet pawls fastened to the ratchet pawl carrier engage in respective associated coupling recesses provided on the ratchet pawl counter-element. In a decoupled state, the ratchet pawls are positioned outside the coupling recesses. Each of the locking pawls is thereby loaded into a first locking pawl position by means of a respective associated spring, and can be loaded into a second locking pawl position by means of an associated actuating tappet.

Abstract: A hydraulic transformer clutch employs radial hydraulic piston assemblies with integrated electrohydraulic actuation. The hydraulic transformer clutch includes: an output shaft, an output disc affixed to the output shaft for rotation therewith, an input shaft, a rotatable housing affixed to one of the input shaft or the output shaft for rotation therewith, a plurality of hydraulic cylinders, and a plurality of working pistons. The hydraulic cylinders are operatively connected to the rotatable housing, and are spaced about the rotatable housing. Each working piston is slidably mounted within a corresponding hydraulic cylinder of the plurality of hydraulic cylinders, and is positioned to be selectively pushed, when actuated, to create a rigid connection between the input shaft and the output shaft. One or more actuator pistons are pushed by an electromagnet and create pressure that is distributed on working piston surfaces and generates active torque.

Abstract: A pawl clutch may include first member having at least one notch, and a second member. The first member and the second member may be configured to rotate relative to each other at a speed differential when the pawl clutch is disengaged. The pawl clutch may further include at least one pawl moveably retained to the second member and having a toe portion configured to engage the pawl clutch by engaging the notch of the first member. The toe portion of the pawl may have a chamfered edge configured to contact a corner of the notch to reject engagement of the pawl with the notch when the speed differential is above a threshold.

Abstract: A clutch and a compressor including the same, and may include a hub fastened to a rotary shaft of a compressor and rotatable with the rotary shaft in a state where its position has been fixed, a disk fastened to the hub and rotatable with the hub, a pulley rotated by receiving power from a driving source of the compressor, an elastic member fastening the hub and the disk, fastening the hub and the disk so that the disk approaches or is away from the pulley based on the hub, a field coil assembly magnetized when power is applied to contact or space the disk and the pulley, an attenuation member interposed between the elastic member and the disk, thereby reducing the noise and vibration due to the contact and spacing between the disk and the pulley by the elastic member and the attenuation member.

Abstract: A hand-propelled, self-driving, traveling machine that includes a clutch which enables transmission between a wheel and a transmission shaft. The clutch provides a drive state in which the transmission shaft drives the wheel to rotate and an unlocked state in which the wheel is rotatable relative to the transmission shaft. The clutch includes a driving member, combined with the transmission shaft, a movable pin, movable between a locked position in which the clutch is in the drive state and an unlocked position in which the clutch is in the unlocked state, a transmission member connected to the wheel, a movable friction member provided with a limiting slot, where the movable pin is partially disposed in the limiting slot, and a fixed friction member that is fixed to the chassis and that is in a frictional contact with the movable friction member.

Abstract: A fast release mechanism for a twin plate friction clutch including a biasing member positioned between the intermediate plate and the flywheel surface, and a retaining member for retaining the biasing member in place relative to the intermediate plate or flywheel surface during installation. In one embodiment, the fast release mechanism comprises a spring and a clip that retains the spring in place relative to the intermediate plate. When used with positioner pins extending through the intermediate plate, each clip may be U-shaped and includes a hole on its upper wall and a slot on its lower wall sized to receive the pin. The arms defining the slot extend partly over the end of the springs to keep the spring in place.

Abstract: An automobile or other wheeled vehicle includes various hydraulic components, including a hydraulic gearbox, transmission, clutch, and brake energy recovery system. Such hydraulic components supplement or replace traditional mechanical components of the automobile or other wheeled vehicle to improve the overall operational efficiency thereof.

Abstract: A hybrid module for a drive train of a motor vehicle comprises a housing, a disconnect clutch, and a hydraulic actuating unit cooperating with the disconnect clutch and received on the housing. The module includes an electric motor, wherein a rotor of the electric motor is rotationally coupled to a clutch component of the disconnect clutch. The actuating unit has a piston element, which is received such that it is displaceable relative to the housing and which, via an actuating bearing, is connected to a pressure element such that it is fixed against displacement in an axial direction of the disconnect clutch yet rotatable relative to the pressure element. The pressure element is configured for engagement and disengagement of the disconnect clutch, and the actuating bearing is formed as an axial needle bearing.

Abstract: Provided herein is an electric axle including a differential assembly drivingly connected to a first axle half shaft and a second axle half shaft, wherein the first and second axle half shafts each have a wheel coupled to the ends thereof; an electric motor/generator drivingly connected to a first rotatable shaft; a first gear set having a first gear connected to the first rotatable shaft and a second gear connected to a second rotatable shaft; a second gear set having a first gear connected to the second rotatable shaft and a second gear selectively connected to a third rotatable shaft; a third gear set having a first gear connected to the third rotatable shaft and a second gear drivingly connected to the differential assembly; and a selector device configured to selectively connect the third rotatable shaft to the second gear of the second gear set or the first rotatable shaft.

Abstract: A reverse input blocking clutch includes an input member, an output member, a pressed member, and an engaging member. When a rotational torque is inputted to the input member, the engaging member moves in a direction away from a pressed surface of the pressed member due to engagement with the input member, and transmits the rotational torque inputted to the input member to the output member due to engagement with the output member; and when rotational torque is reversely inputted to the output member, moves in the direction closer to the pressed surface based on engagement with the output member, and by being pressed against the pressed surface does not transmit the rotational torque reversely inputted to the output member to the input member, or transmits only part thereof to the input member due to engagement with the input member.

Abstract: A bi-directional overrunning clutch differential is configured to transmit power from an input shaft to a first output shaft and a second output shaft in a vehicle. The differential includes a differential housing having a first bearing seat and a second bearing seat. A first bearing is carried by the differential housing in the first bearing seat, and a second bearing is carried by the differential housing in the second bearing seat. A first retaining ring secures the first bearing in the first bearing seat, and a second retaining ring secures the second bearing in the second bearing seat. A first output hub is carried by the first bearing for rotation relative to the differential housing, and a second output hub is carried by the second bearing for rotation relative to the differential housing.

Abstract: An uncoupling pulley includes a wheel rim including a first area, intended for receiving a belt connecting the wheel rim to a first power-transmission element, and a second area extending from the first area; a hub rigidly connected to a second power-transmission element; a ring gear including a first portion located under the second area and a second portion presented in the shape of a resilient cylindrical skirt extending, from the first portion, along the longitudinal axis, the cylindrical skirt of the ring gear including a plurality of longitudinal slots and consequently a plurality of portions separated from each other by one of the slots, the ring gear being capable of rotating relative to the wheel rim; and a device for driving the ring gear; and a resiliently deformable element, one end of which is attached to the hub and another end of which is attached to the ring gear.

Abstract: Provided is a centrifugal clutch configured so that a clutch weight can be smoothly displaced without interference with backward displacement of the clutch weight in a rotary drive direction of a drive plate and assist thrust can be stably generated. A centrifugal clutch 200 includes, through swing support pins 214, clutch weights 230 on a drive plate 210 to be rotatably driven by drive force of an engine, and includes plate-side cam bodies 218 and dampers 221. The clutch weight 230 turnably displaces to a clutch outer 240 side through the swing support pin 214, and includes a weight-side cam body 235 configured to climb on the plate-side cam body 218 and a damper groove 236. The damper groove 236 is formed such that a groove width W2 for fitting the damper 221 when the clutch weight 230 is at a clutch-ON position is wider to a front side in a rotary drive direction of the drive plate 210 than a groove width W1 for fitting the damper 221 when the clutch weight 230 is at a clutch-OFF position.

Abstract: A hybrid module comprising a rotor assembly including a rotor carrier and a torque converter completely disposed radially inside of the rotor carrier is provided. The torque converter assembly includes an impeller having an impeller shell fixed to the rotor carrier such that the impeller shell and the rotor carrier form a housing of the torque converter.

Abstract: A method for synchronizing a first drive element rotatable about an axis of rotation with a second drive element rotating about the axis of rotation at a target speed, of a powertrain of a motor vehicle, in which a synchronizing force is exerted on a synchronizing unit by an actuator. A speed, at which the first drive element rotates about the axis of rotation is adapted by the synchronizing unit to the target speed. The synchronizing force is increased during a first time span, so that the speed approaches the target speed. The synchronizing force is continuously reduced during a second time span following the first time span, before the speed corresponds to the target speed.

Abstract: An epicyclic gear system for a gas turbine engine includes a planet carrier with at least one structural member, on which a planet gear is pivot-mounted by a bearing that is radially arranged between the planet gear and the structural member. Furthermore, a roller bearing device is arranged radially between the planet gear and the bearing. A relative movement between the planet gear and the bearing is prevented by the roller bearing device, if a friction torque in the region of the bearing is less than or equal to a threshold value.