Abstract: A pawl freewheel with a first race, a second race and pawls between the first and second race, which comprise at least one first pawl, which can be pivoted between a locked position in which the first race is rotationally drivingly coupled in a first direction of rotation relative to the second race via the first pawl to the second race and an open position, in which the first race is rotatable in the first direction of rotation relative to the second race wherein an actuating device is provided with an actuating pin which interacts with the first pawl which can be displaced from a first actuating position in which the first pawl is pivoted into the locked position, in the axial direction relative to the first pawl into a second actuating position, in which the first pawl is pivoted into the open position.

Abstract: An axle assembly having a gear reduction unit that is configured to operatively connect an electric motor to a drive pinion. The gear reduction unit includes at least two gear sets. At least one clutch is engageable to provide a torque path between the electric motor and the drive pinion.

Abstract: An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a second electric motor that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a clutch. The electric powertrain further includes a first gear train in the form of a first planetary gear and a second gear train in the form of a second planetary gear. In one form, the first electric motor and second electric motor are the same type of electric motor, and in another form, the first electric motor and second electric motor are different types of electric motors.

Abstract: The system includes: a driver; a rotating load configured to be driven into rotation by the driver; a controller, for controllably changing a rotation speed of the load; and a variable speed transmission, arranged between the driver and the load. The variable speed transmission includes a speed summing gear arrangement with a first input shaft, a second input shaft and an output shaft. The output shaft is drivingly coupled to the rotating load. The first input shaft is drivingly coupled to the driver. A continuous variable transmission device is mechanically coupled to the driver and to the second input shaft of the speed summing gear arrangement. The continuous variable transmission device is functionally coupled to the controller.

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 electric driveline, comprising at least a first and a second electric machine, at least a first and a second output, and at least a first planetary gear set including three drivingly connected components including a sun gear, a planetary carrier and a ring gear. The first and the second electric machine are drivingly connected or connectable with the first and the second output via the first planetary gear set. At least one of the first and the second electric machine is selectively connected with the same one of the three components of the first planetary gear set via at least two different gear ratios, and/or the same one of the three components of the first planetary gear set is selectively connected with each of the first and the second output via at least two different gear ratios. The disclosure further concerns a method of operating an electric driveline.

Abstract: A pumping device for a vehicle seat is proposed. The pumping device includes: a housing made of plastic, including a bottom surface having a through hole, a side wall arranged along an outer circumferential surface of the bottom surface, and an open upper surface, with a clutch device and a brake device, and a lever being connected to the housing at an outside of the bottom surface through the through hole so that the housing is configured to transmit drive force from the lever to the clutch device; and a housing cover made of metal, including a first side surface covering the open upper surface of the housing, a plurality of bending parts at an edge thereof such that the bending parts are bent toward the housing to achieve coupling between the housing cover and the housing, and a second side surface coupled to a seat frame.

Abstract: Methods and systems for an electric drive axle of a vehicle are provided. An electric drive axle system includes, in one example, an electric motor-generator rotationally coupled to a gear train. The gear train includes an output shaft rotationally coupled to a gear assembly axially offset from an input shaft rotationally coupled to the electric motor-generator, where the gear assembly is rotationally coupled to a differential and the differential is rotationally coupled to an axle, a first clutch assembly is configured to rotationally couple and decouple a first gear set from the output shaft, and a second clutch assembly is configured to rotationally couple and decouple a second gear set from the output shaft, the second gear set having a different gear ratio than the first gear set.

Abstract: A multi-plate clutch is specified, with an outer plate carrier, an inner plate carrier and a plate pack which consists of alternately arranged outer plates and inner plates and is arranged radially between the outer plate carrier and the inner plate carrier, wherein a first group of the outer plates is mounted on the outer plate carrier and/or a first group of the inner plates is mounted on the inner plate carrier with a larger circumferential backlash than the other outer plates or inner plates, respectively, which are mounted on their plate carrier with no or smaller circumferential backlash, wherein the outer and/or inner plates with larger circumferential backlash in each case directly adjoin at least one plate with no or smaller circumferential backlash. Furthermore, an electrically operated drive train and a method for producing a multi-plate clutch are specified.

Abstract: A transmission assembly for a hybrid vehicle includes an internal combustion engine and an electric machine, wherein a first drive torque of the internal combustion engine and a second drive torque of the electric machine are transferable to a drive shaft of the hybrid vehicle via the transmission assembly, wherein the transmission assembly comprises: a first transmission input shaft, via which the first drive torque 1 of the internal combustion engine is introduced into the transmission assembly; a second transmission input shaft, via which the second drive torque of the electric machine is introduced into the transmission assembly; the drive shaft; and at least a first planetary transmission including a first ring gear, a first planetary carrier and a first sun gear; wherein the first transmission input shaft is connected via the first planetary transmission to the second transmission input shaft and to the drive shaft.

Abstract: A disconnectable coupling device rotatable about an axis is provided with a first shaft having an end and a hub formed on the end, the hub including a flange extending radially from the end and a round wall projecting axially from the flange and defining a hollow; a second shaft aligned with the first shaft and opposed to the end of the first shaft, the second shaft having a drum overhanging the hub; a multi-plate clutch held between the hub and the drum to disconnectably connect the hub with the drum; a cup so fixed with the hub as to define a gutter around the first shaft; and one or more perforations axially passing through the flange to establish fluid communication between the gutter and the hollow.

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: Provided are a joint component formed with fine recessed portions, a multiplate clutch device including the joint component, and a joint component manufacturing method. At the joint component, many fine recessed portions are formed at a joint surface joined to a joint object. The joint surface is formed in a circular ring shape along a peripheral direction of the base body, and is formed with a flatness of equal to or less than 0.15 mm. The fine recessed portions are formed at the joint surface such that adjacent ones of the fine recessed portions do not overlap with each other and a formation density per unit area at the joint surface is uniform. The fine recessed portions are formed as laser processing marks formed at the base body by irradiation with laser light.

Abstract: An axle center transmission for transmitting a driving torque received from a drive device to two half shafts of an axle comprises a transmission gearing for transmitting a driving torque received at an input element and having at least two selectively switchable gear transmission ratios and a differential for distributing the transmitted driving torque to two output elements. The transmission gearing has a first gear formed as a planetary transmission having a first sun gear, a first planet carrier having planet gears, and a first annulus gear. The transmission gearing furthermore has a second gear formed as a planetary transmission having a second sun gear, a second planet carrier having planet gears, and a second annulus gear. The first sun gear forms said input element; the first planet carrier is stationary; and the second sun gear is couplable or coupled to the first annulus gear for a common rotation.

Abstract: Methods and systems for an electric drive axle of a vehicle are provided. A gear train in an electric drive axle system includes, in one example, an input shaft configured to rotationally couple to an electric motor-generator and including a first gear and an intermediate shaft including a second gear rotationally coupled to the first gear and a third gear and a fourth gear each configured to rotationally couple to a separate gear on an output shaft. In this example, the second gear, the third gear, and the fourth gear have different sizes, the third gear includes an axial extension having at outer surface, and an interior surface of the second gear circumferentially surrounds at least a portion of the outer surface of the axial extension.

Abstract: A shiftable planetary transmission (1) includes a planet carrier (2), a plurality of planet gears (3) rotatably arranged at the planet carrier (2), a sun gear (4), and a ring gear (5). The sun gear (4) and the ring gear (5) mesh with the planet gears (3). The planet carrier (2) includes at least one connecting element (6), which is axially displaceable therein. The at least one connecting element (6), on a first side of the planet carrier (2), is at least indirectly connected to an actuator (7) and, on a second side of the planet carrier (2), is at least indirectly connected to a first dog element (8). The first dog element (8) is displaceable, by an actuator actuation, between a first shift position and at least a second shift position due to an axial displacement of the at least one connecting element (6) in the planet carrier (2).

Abstract: Methods and systems for an electric drive axle of a vehicle are provided. An electric drive axle system includes, in one example, a gear train configured to rotationally attach to an electric motor-generator. The gear train includes an output shaft rotationally coupled to a first planetary gear assembly axially offset from an input shaft rotationally coupled to the electric motor-generator, the first planetary gear assembly configured to removably couple to a differential arranged co-axial with an axle.

Abstract: Provided are a wet friction plate and a wet multiplate clutch device including the wet friction plates capable of improving the performance for discharging lubricant oil adhering to surfaces of friction members. A wet friction plate includes oil grooves and friction members on a flat plate annular core metal. At a surface of a porous layer of the friction member, a friction slide surface and lubricant oil recessed portions are formed. The lubricant oil recessed portion has no sharp portion in a pointed shape, such as a corner portion, and is formed with a smooth continuous surface. The multiple lubricant oil recessed portions depressed in a recessed shape with respect to the friction slide surface are formed. In the porous layer, hollow portions are formed to have the same formation rate between a portion forming the friction slide surface and a portion forming the lubricant oil recessed portion.

Abstract: A power transmission device including: a motor to drive a rotary shaft; a first reducer connected to the rotary shaft to reduce rotational angular velocity of the rotary shaft; a second reducer connected to the rotary shaft to reduce rotational angular velocity of the rotary shaft; a first clutch disposed between the rotary shaft and the first reducer to connect and disconnect the rotary shaft and the first reducer; a second clutch disposed between the rotary shaft and the second reducer to connect and disconnect the rotary shaft and the second reducer; and a third clutch disposed outside the second reducer to connect and disconnect the second reducer and an external component.

Abstract: A drive assembly for a work vehicle includes a housing arrangement, a drive shaft rotatable in first and second clock directions, and a two-stage planetary gear set coupled to the drive shaft. The gear set includes, or is coupled to, an output element. First and second clutch arrangements are configured to selectively engage the gear set to effect first and second gear ratios, respectively. A step ratio from the first gear ratio and the second gear ratio is 3:1. At least one first actuator and at least one second actuator are configured to effect movement of the first and second clutch arrangements, respectively, to selectively engage the gear set. The drive shaft and the output element rotate in a same clock direction with the first clutch arrangement engaged with the gear set, and in opposite clock directions with the second clutch arrangement engaged with the gear set.