Abstract: A range-change transmission device includes a main shaft, an output shaft, and a range-change unit. The range-change unit has at least one planetary gearbox, which includes at least one first gearbox element, at least one second gearbox element, and at least one third gearbox element. The range-change unit also has at least one shifting device, which is provided at least for the selective connection of the main shaft to the first gearbox element and/or to the second gearbox element.

Abstract: A transmission uses a chain and sprocket final drive that provides all final drive torque multiplication in addition to transferring power to the differential axis. The transmission includes a front support structure that provides for a small driving sprocket. The front support includes an insert made of hardened material that can serve as the inner bearing race for the driving sprocket. In some embodiments, four fluid passageways are provided to the torque converter. In some embodiments, the park gear may be integrated with the driven sprocket.

Abstract: A transmission includes a first planetary gear set and a second planetary gear set that are the only planetary gear sets interconnected from an input to an output. The first planetary gear set includes an input-only first input gear and a first non-input/output gear, a first pinion gear meshed therebetween, and a first output planetary carrier carrying the first pinion gear. The first output planetary carrier is alternatively output-only or output-and-input. Moreover, the first non-input/output gear is alternatively held when the first output planetary carrier is output-only or released when the first output planetary carrier is output-and-input. The second planetary gear set includes an input-only second input gear and a grounded second non-input/output gear, a second pinion gear meshed therebetween, and an output-only second output planetary carrier carrying the second pinion gear.

Abstract: A planetary gear train may include input and output shafts, first to fifth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, tenth to twelfth, and thirteenth to fifteenth elements, a first shaft fixedly connected to the second element and the input shaft, a second shaft fixedly connected to the fourteenth element and the output shaft, a third shaft fixedly connected to the first and thirteenth elements, a fourth shaft fixedly connected to the third element, the fourth element, and the eighth element, a fifth shaft fixedly connected to the ninth element, a sixth shaft fixedly connected to the eleventh and fifteenth elements, a seventh shaft fixedly connected to the fifth and seventh elements, an eighth shaft fixedly connected to the sixth and tenth elements, and a ninth shaft fixedly connected to the twelfth element.

Abstract: An end plate for a vehicle includes an upper end plate, a lower end plate, and a cover that covers a gap between a lower end edge of the upper end plate and an upper end edge of the lower end plate. The vehicle includes an engine and a housing. The engine is fastened to the housing through the end plate. A first stepped portion having a pair of a first flat surface and a second flat surface intersecting with the first flat surface is provided on the engine side of the cover. The first flat surface is inclined downward with respect to a horizontal plane as the first flat surface is directed toward the engine side.

Abstract: A planet stage of an epicyclic gearing includes a gearing housing with a ring gear arranged in a fixed position, at least two planet wheels mounted in a planet web that has at least one cheek, and a sun wheel. The planet web is connected to an input shaft, and there is a connection between the input shaft and a component of a further planet stage. The planet stage of the epicyclic gearing, in particular the planet web, has a reduced torsional loading. The reduced torsional loading is achieved in that the connection is a connecting web which is connected to that cheek of the planet web which is acted upon by an admission of load/moment, and is arranged in the region between two planet wheels and within the ring gear.

Abstract: A torsional vibration damping arrangement, particularly for a drivetrain with an automatic transmission, includes an input region and an output region, wherein a first torque transmission path and parallel thereto a second torque transmission path and a coupling arrangement for superposing the torques transmitted via the torque transmission paths are provided between the input region and the output region. The torsional vibration damping arrangement further includes at least in the first torque transmission path a phase shifter arrangement for generating a phase shift of rotational irregularities transmitted via the first torque transmission path relative to rotational irregularities transmitted via the second torque transmission path.

Abstract: A torque split type automatic transmission which transmits the torque output from an engine through two paths, adds the torque passing through and increased in each path, and outputs a final torque is provided, wherein the torque of the engine is divided into two portions and each portion of the torque is transmitted respectively through first and second power delivery paths, and wherein the first power delivery path is connected to a launching device, the second power delivery path is connected to a transmission device, and outputs of the launching device and the transmission device are met at a torque combining device such that each torque increased through each power delivery path is added and the final torque is output through the torque combining device.

Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.

Abstract: A torque converter bump control system is provided. The system includes: a gain module that computes a torque converter gain based on a speed ratio; an increased gain module that computes an increased torque converter gain based on turbine speed; a blended gain module that computes a blended torque converter gain based on the torque converter gain, the increased torque converter gain, and a blend ratio; and a final gain module that selectively sets a final torque converter gain based on the speed ratio and commanded engine torque to at least one of the torque converter gain, the increased torque converter gain, and the blended torque converter gain and wherein engine torque is controlled based on the final torque converter gain.

Abstract: In an automatic transmission incorporating a planetary gear transmission at a rear stage of a four-element torque converter comprising two stators, a turbine and a pump; a planetary gear train of an automatic transmission, wherein a reversal torque of a first stator reversing in a low speed ratio zone is converted into a normal torque by the planetary gear train so that this output from the first stator can be added to an output shaft, when a first speed of the planetary gear transmission is selected; a friction element is provided for limiting a rotation of the first stator in the speed ratio zone where the first stator rotates in the reverse direction, a one-way clutch for transmitting a torque only in a specified direction is installed, and the first stator is permitted to run idle by this one-way clutch so that a fluid loss in a stator portion can be minimized, when a second speed of the planetary gear transmission is selected.