Abstract: In a power transmission apparatus, a centrifugal clutch includes a holder, a press, a first spherical body that is partially protruded from a first opening and in contact with a rolling contact surface of the press so as to be rollable thereon, and a second spherical body that is partially protruded from a second opening and in contact with a rolling contact surface of the holder so as to be rollable thereon. A through hole has a tapered shape from the first opening to the second opening. Disconnection of the first spherical body is prevented by an outer peripheral edge of one of the first opening and the second opening that has a smaller diameter.

Abstract: A system and method of controlling a shift mechanism for a vehicle, includes a shift determination unit configured to determine information on a shifting stage of the vehicle according to an operation of the shift mechanism; and a control unit configured to receive the information on the shifting stage from the shift determination unit and to transmit a signal such that vibration is generated in the shift mechanism when the shifting stage switched by operation of the shift mechanism is a drivable shifting stage, wherein when a driver operates the shift mechanism to switch a shifting stage to a drivable shifting stage, a signal according to the corresponding shifting stage is transmitted to enable the driver to recognize the switched shifting stage and thus to prevent erroneous operation, ensuring driving safety.

Abstract: A system for operating at least one magnetorheological fluid clutch apparatus may, in a first mode, vary an amount of torque transmission between a driving member and a driven member in the at least one magnetorheological fluid clutch apparatus by actuating at least one coil in the at least one magnetorheological fluid clutch apparatus. In a second mode, the system may cause torque transmission between the driven member and the driving member by setting a desired remanent magnetization level in a magnetic component of the at least one magnetorheological fluid clutch apparatus by actuating the at least one coil in the at least one magnetorheological fluid clutch apparatus.

Abstract: A drive assembly including a primary inertia plate and clutch. The primary inertia plate is configured to be rotationally driven via a crankshaft. The clutch plate includes a body with a rotational axis (X). The clutch plate is configured to be rotationally driven by the primary inertia plate. The clutch plate includes at least one imbalance feature such that a center of gravity of the clutch plate is positioned away from the rotational axis (X). The imbalance feature generates a centrifugal force that counteracts or prevents rattling from being imparted to the clutch plate via engine vibrations through the primary inertia plate.

Abstract: The invention relates to a motor vehicle transmission (6) comprising a drive input shaft (9), a drive output shaft (10), a first planetary gearset (P1), a second planetary gearset (P2), and a third planetary gearset (P3), where the drive input shaft (9) is provided for coupling to an electric machine (5). Furthermore, at least functionally a first shifting element (A), a second shifting element (B), and a third shifting element (C) are provided. In addition, the invention relates to a drive unit (4), a drive axle (3), and an electric vehicle.

Abstract: An automatic transmission includes a clutch hub assembly having a clutch hub and a housing assembly having a housing shaft and a piston dam. The clutch hub may define an inner portion between an outer radial wall, an inner radial wall and a forward axial wall, and extend about a central opening. The clutch hub may further include one or more first oil holes extending through the outer radial wall, one or more second oil holes extending through the inner radial wall, and an oil dam projecting radially inward from the inner radial wall. An oil flow path extends from the central opening through the one or more second oil holes, the inner portion, and the one or more first oil holes.

Abstract: A drive system includes an inner race member and an outer race member. A first disengageable sprag clutch is disposed between the inner race member and the outer race member, the first disengageable sprag clutch having a drive direction and a freewheeling direction. A second disengageable sprag clutch is disposed between the inner race member and the outer race member, the second disengageable sprag clutch having a drive direction and a freewheeling direction that are opposite the drive direction and the freewheeling direction of the first disengageable sprag clutch.

Abstract: A rotation transmission device is provided which includes rollers disposed between the inner periphery of an outer ring and the outer periphery of an inner ring; an armature supported to axially move when an electromagnet is energized; and a ball ramp mechanism which converts the axial movement of the armature into the motion/movement of a roller cage from an engaged position to a disengaged position. This rotation transmission device further incudes an annular cover member made of aluminum, an O-ring and an oil seal.

Abstract: A centrifugal clutch of a transport refrigeration unit incorporating a wear limiter includes a drum, a hub, at least two friction pad assemblies, and at least one spring (e.g., leaf or coil) between each respective friction pad assembly. The wear limiter may be configured as part of the leaf spring, as part of the friction pad assemblies, and/or as a standalone component. The wear limiter is configured to prevent the radially outward facing surface of at least one friction pad assembly from engaging the internally facing surface of the drum when the centrifugal clutch is in the extended position and the friction material of at least one friction pad assembly is worn to a worn thickness. This may prevent the centrifugal clutch from engaging when the friction pad is worn.

Abstract: A method for producing friction discs for a, in particular radial, dual clutch, includes the following steps: providing a first disc ring with a first inner diameter, providing a second disc ring with a second outer diameter, wherein the second outer diameter is smaller than the first inner diameter, and processing the first disc ring and the second disc ring in a tool for producing the friction discs. The second disc ring is arranged within the first disc ring, and the second and the first disc rings are processed in the tool together.

Abstract: A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.

Abstract: An anti-reverse clutch apparatus includes an input shaft provided with a push handle, an output shaft mounted coaxially with the input shaft and rotatable relative to the input shaft, a clutch housing including an internal gear formed along an internal circumferential surface of the clutch housing, and a locking block, which is mounted between the output shaft and the internal circumferential surface of the clutch housing, and rotatable together with the output shaft and which includes an external gear, which is formed along an external circumferential surface of the locking block to be engaged with the internal gear, the locking block being linearly moved in a radial direction of the output shaft by a sloped surface structure formed between the push handle and the locking block so that the external gear is engaged with or disengaged from the internal gear when the push handle is rotated.

Abstract: A drive assembly for a work vehicle includes a drive housing, a drive shaft rotatable about a drive axis, an inner hub rotationally fixed to the drive shaft, and a planetary gear set coupled to the drive shaft and configured to selectively rotate an output element. The drive assembly also includes a clutch arrangement having a clutch ring configured to selectively engage the planetary gear set. The clutch arrangement further includes a guide assembly mounted on the clutch ring and configured to selectively interact with the planetary gear set to effect disengagement of the clutch ring from the planetary gear set. A clutch actuation assembly is configured to effect movement of the clutch arrangement along the drive axis to engage the planetary gear set, and a guide actuation assembly is configured to operate the guide assembly to interact with the planetary gear set.

Abstract: A drive transmission apparatus includes a dog clutch including a dog gear assembly and a dog ring, which are configured for rotation and relative axial adjustment between an engaged condition in which torque can be transmitted and a disengaged condition. The dog gear assembly includes a dog gear, a retractable dog assembly configured for movement relative to the dog gear between an extended position and a retracted position, and a control element that controls movement of the retractable dog assembly. The dog ring includes a plurality of first dogs and the dog gear assembly includes a plurality of second dogs that engage the first dogs in the engaged condition, and that are disengaged from the first dogs in the disengaged condition. The second dogs include a plurality of fixed dogs that are mounted on the dog gear and a plurality of retractable dogs of the retractable dog assembly.

Abstract: A parking lock system for a motor vehicle includes a parking lock housing mountable on a transmission housing. A pawl is mounted on the parking lock housing so as to be rotatable about an axis of rotation. A switching rod is mounted on the parking lock housing so as to be slidable in an actuation direction. An actuation element is mounted on the switching rod. The axis of rotation is arranged parallel to the actuation direction.

Abstract: An automatic transmission includes a brake including a fixed-side cylindrical member spline-coupled to a transmission case, a rotation-side cylindrical member coupled to a given rotating member, a plurality of friction plates disposed between the fixed-side cylindrical member and the rotation-side cylindrical member, and including a fixed-side friction plate configured to be spline-engaged with the fixed-side cylindrical member and a rotation-side friction plate configured to be spline-engaged with the rotation-side cylindrical member, and a piston configured to engage the plurality of friction plates. The automatic transmission further includes a shock absorbing member disposed between a spline part of the transmission case and a spline part of the fixed-side cylindrical member and configured to absorb impact when the fixed-side cylindrical member rotates relative to the transmission case.

Abstract: In some examples, a cone clutch assembly includes an inner cone member defining a first friction surface; an outer cone member defining a second friction surface opposing the first friction surface; and an independent friction member positioned between the first friction surface of the inner cone member and the second friction surface of the outer cone member. The inner cone member and outer cone member are configured to be selectively engaged and disengaged from each other. When the inner cone member is engaged with the outer cone member, the first friction surface of the inner cone member frictionally engages a third friction surface of the friction member, and the second friction surface of the outer cone member engages a fourth friction surface of the friction member such that rotational motion is transferred between the inner cone member and the outer cone member via the friction member.

Abstract: An all-wheel-drive vehicle includes a primary axle operably coupled to an engine and a secondary axle having an input operably coupled to the engine a first halfshaft, a second halfshaft, a first clutch selectively connecting the first halfshaft to the input, and a second clutch selectively connecting the second halfshaft to the input. A transmission has an input coupled to the engine and output coupled to the primary drive axle. A driveshaft couples a power-transfer unit and the input, and a third clutch selectively couples the output to the driveshaft. A controller is programmed to, during a power-limiting routine, command a torque to the engine based on closed-loop feedback control such that the torque decreases when a calculated slip of a selected one of the first and second clutches is greater than a target slip of the selected clutch and increases when the calculated slip is less than the target slip.

Abstract: A synchronizing ring for a synchronizer of a transmission. The synchronizing ring is provided with a plurality of axially extending cams for engagement with a further synchronizing ring. An axial surface of each axial cam is provided with at least one groove for transportation of oil.

Abstract: A clutch assembly is disclosed herein that generally has at least three operating conditions: an open condition, a transition condition, and a locked condition. The operating conditions are achieved based on displacement of a dog clutch ring relative to a pocket ring and a cam ring. In the open condition, rockers of a ratcheting assembly are completely disengaged from ramps on a cam ring. In the transition condition, the rockers engage with the ramps on the cam ring to allow a ratcheting motion in one rotational direction and a locked state in the other rotational direction. In the locked condition, splines on the dog clutch ring engage with splines on the cam ring to provide a rotationally fixed connection in both rotational directions.