Abstract: A plain bearing bushing is formed from a material strip, wherein a first joining end of the material strip has a projection and a second joining end has a recess interacting with the projection, a base side of the projection being oriented towards the first joining end. A bushing is to be provided that is designed to be more advantageous with respect to the production method, in particular during the forming process, and with respect to dimensional tolerance and long-term stability. This is achieved by a bushing with clamping elements in which the joining ends of the material strip are fixed both in axial direction and in circumferential direction of the bushing in a frictionally engaged and/or formfitting manner.

Abstract: A rolling bearing wherein the conventional cage is replaced by independent spacers, one per pair of neighbor rolling elements, each spacer is disposed and trapped between neighbor rolling elements, each spacer is supported on its neighbor rolling elements and is preventing them from coming into contact with each other, each spacer comprising, preferably, a case and a number of auxiliary rolling elements, resulting in rolling bearings having higher load capacity and reduced sliding friction, also a method to improve the conventional cylindrical roller bearings, the conventional ball bearings and the conventional thrust roller bearings.

Abstract: A rolling-element bearing cage includes a first side ring and a second side ring connected to the first side ring by a plurality of bridges defining a plurality of pockets configured to receive a rolling-element. The first side ring includes a joint at which the first side ring is configured to be opened to increase a diameter of the first side ring, and the first side ring and the second side ring and the plurality of bridges are made of steel and an outer diameter of the second side ring is greater than 500 mm.

Abstract: A radial bearing assembly and method of manufacture that provides a radial bearing assembly having a plurality of spherical bearing inserts, such as ball-shaped carbide inserts, bonded to a bearing sleeve. The method of manufacture utilizes a mold for simultaneously brazing and bonding the spherical beating inserts to the surface of the bearing sleeve.

Abstract: A steering column bearing assembly is disposed between an upper column jacket and a steering control shaft, supporting the steering control shaft for rotation within the upper column jacket. The steering column bearing assembly comprises an inner race, an outer race, and a plurality of ball bearings disposed between the inner race and the outer race, each ball bearing having a ball bearing diameter. The inner race and the outer race define an annular cavity in which the plurality of ball bearings is disposed. The annular cavity has an interior column opening defined between an outer edge surface of the inner race and an inner edge surface of the outer race. The outer edge diameter is less than a sum of the inner edge diameter and the ball bearing diameter.

Abstract: Provided is a grease composition for a wheel bearing, containing (a) a base oil consisting of a mineral oil and a synthetic hydrocarbon oil, wherein the ratio of the synthetic hydrocarbon oil to the total amount of the mineral oil and the synthetic hydrocarbon oil is 40 to 60 mass %, and the base oil has a kinematic viscosity at 40° C. of 40 to 65 mm2/s; (b) a thickener of formula (A) wherein R2 is diphenylmethane, and R1 and R3, which may be the same or different from each other, each represent cyclohexyl group or a straight-chain or branched alkyl group having 16 to 20 carbon atoms, with a molar ratio of the cyclohexyl group to the total number of moles of the cyclohexyl group and the alkyl group being 50 to 90 mol %; (c) an amine type antioxidant; and (d) an amine phosphate type antiwear agent.

Abstract: The invention relates to a sensor arrangement on a rotary bearing which has a stationary bearing part and a rotatable bearing part. A primary coil is arranged on the stationary bearing part and is connected to a supply unit in a wired manner. A sensor circuit and a secondary coil supplying said circuit with electrical energy are fitted to the rotatable bearing part. According to the invention, the primary coil and the secondary coil are part of an energy transmission unit which is constructed according to the Qi standard. At least the operating energy for the sensor circuit, preferably also the data for communication between the sensor circuit and the supply unit, are transmitted via the inductive coupling between the primary coil and the secondary coil.

Abstract: A driveline joint includes an outer member, an inner member, and a biasing member. The outer member is connected to a first shaft and has a back wall, an end portion, and an inner surface extending between the back wall and the end portion. The inner member is connected to a second shaft and has a first end, a second end, and an outer surface extending between the first end and the second end. The biasing member is disposed between the back wall and the first end and resists translation of the inner member relative to the outer member.

Abstract: Provided is a method of manufacturing an outer joint member of a constant velocity universal joint, which is constructed by welding a cup member and a shaft member, the method including: forming the cup member and the shaft member of medium carbon steel; preparing; preparing; bringing the joining end surface of the cup member and the joining end surface of the shaft member into abutment against each other; welding the cup member and the shaft member; and performing, after the welding, ultrasonic flaw detection-inspection from any one of a surface side of the cup member and a surface side of the shaft member, which has the another one of the joining end surface of the cup member and the joining end surface of the shaft member.

Abstract: A reducer with a double-clutch structure includes a source power input shaft and a power output shaft. A speed reduction mechanism includes a driving device and a driven device installed on the output shaft. A first clutch device is arranged on the output shaft and is driven by the driven device thereby driving the output shaft. A second clutch device is arranged on the output shaft and is meshed with the driven device to drive the output shaft. A clutch control device operates the first clutch device and the second clutch device simultaneously to move between the engaging position and the disengaging position. The first clutch device engages earlier than the second clutch device and disengages later than the second clutch device. When the clutch control device operates the second clutch device to move axially to an engaging position from a disengaging position, the first clutch device is axially pushed to the engaging position from the disengaging position by the second clutch device.

Abstract: A new method of manufacturing a torque-transmitting clutch component is provided. The method includes coining an interface between a flange segment and a hub segment of the clutch component. Additionally, a torque-transmitting clutch component manufactured by the new manufacturing method is provided.

Abstract: A method for controlling a hydraulic fluid supply system of an automatic transmission of a motor vehicle includes supplying the hydraulic fluid supply system with hydraulic fluid from at least one of a hydraulic pump controlled on an engine side and a hydraulic pump controlled on a gear set side. The method also includes controlling a cooling valve of the hydraulic fluid supply system as a function of detected motor vehicle parameters in order to set an adjusted power distribution with the hydraulic pump controlled on the engine side and the hydraulic pump controlled on the gear set side.

Abstract: A method for controlling a hydraulic fluid supply system of an automatic transmission of a motor vehicle includes supplying the hydraulic fluid supply system with hydraulic fluid from at least one of a hydraulic pump controlled on an engine side and a hydraulic pump controlled on a gear set side. The method also includes controlling a retaining valve of the hydraulic fluid supply system as a function of detected motor vehicle parameters in order to set an adjusted power distribution with the hydraulic pump controlled on the engine side and the hydraulic pump controlled on the gear set side.

Abstract: A hybrid drive including a first drive motor coupled by a clutch to a shaft, and a second drive motor coupled rigidly to the shaft. A method for determining the temperature of the clutch in the hybrid drive includes the steps of: determining a temperature of the clutch; determining a temperature of the clutch housing; determining the temperature difference between the clutch and the clutch housing; determining the heat conductivity between the clutch and the clutch housing, wherein the heat conductivity is determined as a function of the rotational speed of the first drive motor and the rotational speed of the second drive motor; determining the heat flow between the clutch and the clutch housing on the basis of the product of the heat conductivity and the temperature difference; and adjusting the ascertained clutch temperature on the basis of the ascertained heat flow.

Abstract: A floating disc brake assembly having a disc brake rotor secured to a mounting assembly, such as a hat or a hat with a retention ring structured and arranged to fit within retention ring flanges of a plurality of rotor mounting tabs uniformly distributed about the mounting assembly.

Abstract: A disc brake assembly including a disc brake rotor secured between a mounting assembly and a taper-locking hold down ring. Also provided is a method of securing a disc brake rotor to a mounting assembly including a hub, a hat or a mount. The method includes providing a mounting assembly having a cylindrical body with a mounting flange on a first end of said cylindrical body; fixedly mounting a disc brake rotor onto said cylindrical body; and mounting a taper-locking hold down ring on a second end of the cylindrical body, opposite said mounting flange and biased against the disc brake rotor, such that the disc brake rotor is restricted from rotational or axial movement relative to the cylindrical body.

Abstract: A floating brake rotor and drum assembly comprising a disc brake rotor and a brake drum and a floating connection of the rotor and the drum with a mounting assembly such as a hat or a hub. A retention ring cooperates with retention ring flanges of a plurality of mounting assembly tabs.

Abstract: A disc brake, preferably pneumatically actuated, in particular for a motor vehicle, including a brake disc with a brake disc axis, a brake caliper, in particular a sliding caliper, with a brake application section and a caliper back which are connected via rension struts, and at least two brake pads with in each case one brake pad carrier. Of the brake pads, an application-side brake pad is assigned to the brake application section and a back-side brake pad is assigned to the caliper back. The brake pad carrier of the back-side brake pad and the caliper back of the brake caliper are in contact via at least one pair of contact surfaces. One contact surface of the at least one pair of contact surfaces is an end surface of a projection, and the other contact surface of the at least one pair of contact surfaces is a bottom surface of a recess.

Abstract: A carbon-ceramic disc provided with friction surfaces on both surfaces of a load part at a center of the disc may include a wear indicating device formed on the friction surfaces, wherein a wear indicating recess as the wearing indicating device is formed along a virtual circular line between a contact surface contacting with a pad, and a non-contact surface not contacting with the pad in the carbon-ceramic disc, and wherein the virtual circular line is formed on the friction surface of the carbon-ceramic disc to pass through a center point of a width of the wear indicating recess.

Abstract: A brake lining apparatus for a disc brake, including a brake lining holder and a brake lining applied on an application face of the brake lining holder. The brake lining is distinguished by the fact that a frictional face which is con-figured by way of the lining upper side of the brake lining is at most 75% of the size of the application face of the brake lining holder. This increases the surface pressure of the brake lining, with the result that it experiences a load even in the case of very low actuating forces, in order thus to prevent a permanent premature loss of the coefficient of friction of the brake linings, in particular in the case of vehicles with a hybrid drive.

Abstract: An air spring device for a vehicle includes a cover element, base element, spring-elastic sleeve, and distance sensor unit. The sleeve, together with the cover and base elements, defines an internal space, and includes a first section forming a first spring element having a first length and first spring constant and a second section forming a second spring element having a second length and second spring constant. The distance sensor unit is positioned in the internal space, is configured to determine a distance between the cover element and base element, and includes a measured value encoder and measured value pickup. A first of the encoder and pickup is positioned on the cover or base element. A second of the encoder and pickup is coupled to the cover element via the first spring element and to the base element via the second spring element.

Abstract: An air spring for damping and controlling a level position of a drivers cab or of a motor vehicle includes a lid, a rolling piston and at least one air spring bellows. At least one damping device is integrated into the air spring. A level control system is integrated into the air spring and is configured to at least one of supply and discharge compressed air, gas or a compressible medium so as to control the level position of the driver's cab or of the motor vehicle.

Abstract: Extension for a cylinder of a vibration damper comprising a base and a tube portion adjoining the latter. The base and the tube portion are formed in one piece. The tube portion has a circumferential bend pleat with respect to the base.

Abstract: A damper includes a tubular member that internally forms an action chamber, an annular rod guide secured to one side opening of the tubular member, a rod inserted through an inside of the rod guide so as to be axially movable, an oil seal installed to the action chamber side of the rod guide and seal an outer periphery of the rod, and a sealing member stacked on a side of the rod guide opposite to the action chamber, wherein the sealing member includes a dust seal that seals the outer periphery of the rod, and an outer peripheral seal that seals a gap between the tubular member and the rod guide.

Abstract: A vibration damper includes at least one tube element and a piston which is displaceable in axial direction in the tube element, a piston rod connected to the piston, and a damping force generating device, wherein the piston divides the working space in the interior of the tube element into a first working space on the piston rod side and a second working space remote of the piston rod, and wherein a hydraulic transmission element is arranged in or at the piston, and the transmission behavior of the hydraulic transmission element depends on the movement of the piston or of the piston rod, wherein the hydraulic transmission element encloses a compensation volume. The size of the compensation volume of the transmission element depends on the annular area of the piston which is the difference of the cross-sectional area of the piston and the cross-sectional area of the piston rod.

Abstract: A nozzle plate for an axially damping hydraulic mount having a passage disk with a passage for connecting a work chamber and a balance chamber of a hydraulic mount. The passage disk is rotationally fixable at a first angular position in the hydraulic mount. The nozzle plate also has a cover disk with an aperture that is arranged above the passage at a pre-definable angular position. The passage of the passage disk is bound on one side by the cover disk. The aperture forms an inlet opening into the passage or an outlet opening out of the passage for a fluid damping agent. The cover disk is rotationally fixed such that the aperture is at a second angular position selected from a plurality of different angular positions with respect to the passage disk.

Abstract: A liquid-sealed vibration prevention device is provided with a main rubber-elastic body for elastically connecting an inner cylinder with an intermediate sleeve, an outer cylinder for sheathing the intermediate sleeve, and a seal rubber layer positioned on the inner-circumferential surface of the outer cylinder. The intermediate sleeve has an upper ring part, and the upper end face of the upper ring part is provided with an inclined projection part which extends diagonally upward toward the inner cylinder. Moreover, a pair of rotation-stop rubbers that holds the inclined projection part in the circumferential direction of the intermediate sleeve is provided on the inner side of an annular recess of the outer cylinder and on the upper part side of the seal rubber layer.

Abstract: An anti-vibration apparatus (10) has a bracket (12) that is mounted at a vehicle body (26) (i.e., one of a vibration-generating portion or a vibration-receiving portion), a mounting portion (14) that is mounted at an engine (24) (i.e. the other one of the vibration-generating portion or the vibration-receiving portion), an elastic body (16) that is provided at the mounting portion (14) and is press-inserted into the bracket (12), and that is interposed between the bracket (12) and the mounting portion (14), an auxiliary elastic portion (18) that is provided at the mounting portion (14), and extends in a press-insertion direction of the elastic body (16), a threaded component (52) (i.e., the connector portion (20)) that is provided at the auxiliary elastic portion (18), and a connection-receiving portion (22) that is provided at the bracket (12), and to which the connector portion (20) is connected.

Abstract: A torsional vibration reduction device provided inside a torque converter includes rolling elements, a plate, and a cover. The plate includes rolling chambers housing the rolling elements. The cover encloses and shields the rolling elements and the plate from a working fluid surrounding the torsional vibration reduction device inside the torque converter. The cover includes first and second covers that are joined together with the plate held between the first and second covers. The first and second covers contact the plate in an axial direction of the torque converter at locations that are, with respect to an axis of the torque converter, on an inner peripheral side and on an outer peripheral side of the rolling chambers. Surfaces of the first and second covers are joined to the plate at least at part of the locations where the first and second covers contact the plate.

Abstract: An endless flat belt includes an inner rubber layer 1, a cord core 11 buried in the inner rubber layer 1 and spirally wound at a predetermined pitch in a width direction of the belt, and a reinforcement fabric 2 stuck to the inner rubber layer 1. The cord core comprises polyamide fiber. Opposite ends of the reinforcement fabric 2 are connected with each other into an endless form by adhesion or sewing. A surface rubber layer 3 is stuck to a surface of the reinforcement fabric 2 which is opposite a surface thereof stuck to the inner rubber layer 1.

Abstract: A device and method for the end termination of a braided synthetic rope, with a tapered wedge seated inside a wedge socket free of sharp edges, with a screw-on cap at the top of the wedge socket with an eye for attachment for connecting links, slots in the wedge for receiving unbraided individual strands of a braided synthetic rope. In addition, the device includes a spring and a steel plunger to be inserted in the screw-on cap to assist in holding the wedge securely in place once it is installed in the wedge socket. Rounded edges at the bottom of the wedge socket help protect the braided synthetic rope from abrasion and cutting while in service. The device is intended to create a safe and efficient manner to connect objects in the mooring industry such other synthetic mooring lines, anchor chains, and wire ropes.

Abstract: A rocker joint for a plate link chain. The rocker joint is defined by pairs of contacting rocker pressure pieces that pass through openings formed in chain link plates. Each of the rocker pressure pieces has a rocker pressure piece height, and each includes a rocker pressure piece rocking radius that is in contact with the rocking radius of an adjacent rocker pressure piece. The ratio between the rocking radius and the rocker pressure piece height of the rocker pressure pieces is selected to be small so that a contact point of the contacting rocker pressure pieces moves less far than conventional rocker pressure piece movements during travel of the plate link chain around and between pairs of spaced conical disks.

Abstract: This invention relates to a method and arrangement for reduction of rotational mass of transmission system of a vehicle to improve its fuel efficiency. The reduction of rotational mass is achieved by replacing the torque converter of an automatic transmission or conventional clutch system of a manual transmission, by a flywheel and a holding device. The flywheel and the holding device are located inside the bell housing of the transmission.

Abstract: An Epicyclic gearbox comprising one central gear, one or more offset gears and two carriers, requires one less gear than a planetary gearbox. It lacks an orbit gear and its planets maintain a fixed orientation as they circulate around the sun. The present invention provides a lower reduction ratio, reduced pitch velocity, higher torque capacity, and lower production cost than a planetary gearbox. An all-pinion design allows it to be fitted with gears, cables, chains, belts, or any other type of engaging means. Its high efficiency and low noise make it well suited to high speed operation and overdrive applications.

Abstract: A secondary drive unit (10) for demountable attachment to a machine having a primary drive unit and power take-off, the secondary drive unit (10) comprises a housing (12), a drivable input element (16) drivable by the machine at one end of the housing (12), a driven output element (18) at the other end of the housing (12) for driving a tool and/or another machine, and at least one rotatable gear carrier (44) in the housing (12) drivable by the drivable input element (16). An interior surface of the housing (12) includes a radially-inwardly projecting gear-carrier stop (58) overlapping the gear carrier (44). A low-friction rubbing element (62) is interposed between the gear-carrier stop (58) and the gear carrier (44) to prevent or limit gear-carrier lift. This prevents or limits undue lateral strain along a central rotational axis of the drive unit (10), and thus a possibility of internal shearing.

Abstract: A gear train comprising: an input shaft; a first sun gear coupled to the input shaft; a plurality of first planet gears engaging the first sun gear; a first ring gear engaging the plurality of first planet gears; and a first planet carrier coupled to the plurality of first planet gears; a second sun gear coupled to the input shaft; a plurality of second planet gears engaging the second sun gear; a second ring gear engaging the plurality of second planet gears; and a second planet carrier coupled to the plurality of second planet gears; and an output member coupled to the first planet carrier at a first torque transfer location and coupled to the second planet carrier at a second torque transfer location, different to the first torque transfer location.

Abstract: A planetary gear train of an automatic transmission provides a planetary gear train that includes an input shaft receiving torque of an engine. An output shaft outputs changed torque. Four planetary gear sets include twelve rotation elements. Six friction elements are disposed between rotation elements or between a rotation element and a transmission housing. The input shaft is connected to the second rotation element and selectively connected to the twelfth rotation element. The output shaft is connected to the eleventh rotation element. The first rotation element is connected to the fourth rotation element, the fifth rotation element is connected to the eighth rotation element, the sixth rotation element is connected to the tenth rotation element, the ninth rotation element is connected to the eleventh rotation element, and three friction elements among the six friction elements are operated at each speed stage.

Abstract: A multi stage transmission for a vehicle may include an input shaft and an output shaft; first to third planetary gear device provided to transfer a torque between the input shaft and the output shaft and each including three rotating elements; and at least six shifting elements connected to the rotating elements of the first to third planetary gear devices, wherein the first planetary gear device has a first rotating element continuously connected to the input shaft and variably connected to a third rotating element of the third planetary gear device, a second rotating element fixedly installed by any one of the shifting elements and variably connected to the third rotating element of the third planetary gear device, and a third rotating element variably connected to a first rotating element of the second planetary gear device and continuously connected to a first rotating element of the third planetary gear device.

Abstract: A planetary gear train of an automatic transmission may include: an input shaft; an output shaft; first to third planetary gear sets and six control elements disposed between rotating elements, and disposed at portions where rotating elements are selectively connected to transmission housing, first rotating shaft including first rotating element and ninth rotating element and selectively connected with input shaft; second rotating shaft including second rotating element and fourth rotating element; third rotating shaft including third rotating element and selectively connected with input shaft or transmission housing; fourth rotating shaft including fifth rotating element; fifth rotating shaft including sixth rotating element and directly connected with transmission housing; sixth rotating shaft including seventh rotating element and selectively connected with second rotating shaft or fourth rotating shaft; and seventh rotating shaft including eighth rotating element and selectively connected with second rota

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, and a third planetary gear set including seventh, eighth, and ninth rotation elements.

Abstract: An automatic transmission for a vehicle may include an input shaft; an output shaft; first to fourth planetary gear sets and six control elements which are disposed between the rotating elements, and disposed at portions where the rotating elements are selectively connected to a transmission housing, in which the input shaft is directly connected with the second rotating element, the output shaft is directly connected with the eleventh rotating element, the first rotating element is directly connected with the seventh rotating element, the sixth rotating element is directly connected with the transmission housing, the fourth rotating element is directly connected with the ninth rotating element, the eighth rotating element is directly connected with the tenth rotating element, and at least ten forward speeds and one reverse speed are implemented by operations of three control elements among the six control elements.

Abstract: A planetary gear train of an automatic transmission for a vehicle may includes an input shaft; an output shaft; a first to fourth planetary gear sets and six control elements disposed at portions selectively connecting between the rotation elements or disposed at portions selectively connecting between the rotation elements and a transmission housing, wherein the input shaft is continuously connected to the second rotation element, the output shaft is continuously connected to the eleventh rotation element, the first rotation element is continuously connected to the fourth rotation element, the fifth rotation element is continuously connected to the eighth rotation element, the sixth rotation element is continuously connected to the eleventh rotation element, the ninth rotation element is continuously connected to the tenth rotation element, the ninth rotation element is selectively connected to the transmission housing, and three of the six control elements are operated.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft; an output shaft; a first to fourth planetary gear sets; and six friction elements disposed between at least one rotation element among the twelve rotation elements and another rotation element or a transmission housing, wherein the input shaft is continuously connected to the second rotation element, the output shaft is continuously connected to the eleventh rotation element, the first rotation element is continuously connected to the fourth rotation element, the fifth rotation element is continuously connected to the eighth rotation element, the sixth rotation element is continuously connected to the eleventh rotation element, the ninth rotation element is continuously connected to the tenth rotation element, the second rotation element is selectively connected to the third rotation element, three friction elements among the six friction elements are operated at each speed stage.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, six friction elements disposed to selectively connect rotation elements of the planetary gear sets with each other and selectively connect the rotation elements with a transmission housing, a first rotation shaft selectively connected to the input shaft, a second rotation shaft, a third rotation shaft selectively connected to at least one of the input shaft and the transmission housing, a fourth rotation shaft selectively connected to the second rotation shaft, a fifth rotation shaft selectively connected to the second rotation shaft, a sixth rotation shaft directly connected to the transmission housing, and a seventh rotation shaft selectively connected to the second rotation shaft, and directly connected to the output shaft.

Abstract: A planetary gear train of an automatic transmission may include: an input shaft; an output shaft; first to fourth planetary gear sets; and six control elements being disposed at a portion where one of the rotating element is selectively connected to another rotating element, or the rotating element is selectively connected to the transmission housing, wherein the input shaft is continuously connected to the second rotating element, the output shaft is continuously connected to the twelfth rotating element, the first rotating element is continuously connected to the seventh rotating element, the fourth rotating element is directly connected to the transmission housing, the fifth rotating element is continuously connected to the eleventh rotating element, and the ninth rotating element is continuously connected to the tenth rotating element.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include: an input shaft which receives power from an engine; an output shaft which outputs power changed in speed; a first planetary gear set which has first, second, and third rotating elements; a second planetary gear set which has fourth, fifth, and sixth rotating elements; a third planetary gear set which has seventh, eighth, and ninth rotating elements; a fourth planetary gear set which has tenth, eleventh, and twelfth rotating elements; and six control elements wherein one of the six control elements is disposed at a portion where one of the first to twelfth rotating elements is selectively connected to another of the first to twelfth rotating elements, or at a portion where the one of the first to twelfth rotating elements is selectively connected to the transmission housing.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power from an engine, an output shaft configured to output power changed in speed, a first planetary gear set including first, second, and third rotating elements, a second planetary gear set including fourth, fifth, and sixth rotating elements, a third planetary gear set including seventh, eighth, and ninth rotating element, and six control elements which are disposed at positions where the rotating elements are selectively connected to each other.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power of an engine, an output shaft configured to output shifted power, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, and six control elements which are disposed between the rotation elements, and disposed at portions where the rotation elements are selectively connected to a transmission housing.

Abstract: A planetary gear train of an automatic transmission for vehicle may include an input shaft; an output shaft; first to fourth planetary gear sets and six control elements disposed at a portion selectively connecting the rotation elements and the rotation elements or a portion selectively connecting the rotation elements and the transmission housing, wherein the input shaft is continuously connected to the third rotation element, the output shaft is continuously connected to the eleventh rotation element, the second rotation element is continuously connected to the eleventh rotation element, the third rotation element is continuously connected to the fourth rotation element, the sixth rotation element is continuously connected to the eighth rotation element, the ninth rotation element is continuously connected to the tenth rotation element, the fifth rotation element is selectively connected to the transmission housing.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft configured to output changed torque of the engine, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.