Abstract: A compact integrated transaxle has a two-piece transaxle casing for rotatably mounting a pair of oppositely extending axles along a peripheral seam formed between an upper casing part and a lower casing part. A hydrostatic transmission is also mounted in the transaxle casing and has a center section positionable in the transaxle casing with a pair of perpendicular faces each mounting a hydraulic displacement unit. One of the center section faces defines a hydraulic pump mounting surface and is offset from the plane defined by the peripheral seam. A counter-rotating intermediate shaft is interposed between an output shaft on one of the hydraulic units and the axles and is journalled within the transaxle casing offset from the plane defined by the peripheral seam.

Abstract: A transmission box with several bearings for shafts is disclosed. The transmission case (1) is produced by a plastic injection molded cast and comprises at least in part outer races (14) for the bearings (13), which are retained at a defined axial distance by a metallic precision insertion part (8) embedded into the plastic injection mold case (1).

Abstract: In a toothed-wheel change gear, a gear pump for the conveyance of transmission oil is arranged in a separate gearbox chamber of a gearbox. Leakage oil flowing out at the gear pump is intermediately stored in the gearbox chamber in a controlled manner.

Abstract: A gearbox for automotive vehicles includes two mutually concentrically journalled input shafts (6,9), each of which drives a respective lay-shaft (12,15). A gear wheel (17,19) disengageably mounted on each lay-shaft meshes with a common, disengageable gear wheel (22) on the output shaft (20) of the gearbox. When driving in first gear, the one lay-shaft (12) drives the other lay-shaft (15) via the disengaged or declutched common gear wheel (20) on the output shaft.

Abstract: Arrangement and method for operating a continuously variable drive unit of a motor vehicle with a controllable internal combustion engine and a hydrostatic-mechanical power split transmission and a control device which, near the gear-shift points S1 or S2 at an approximately constant rotational speed of the output shaft of the power split transmission, reduces the speed n.sub.mot of the internal combustion engine starting from n.sub.1 and accelerates the resetting motion PHI or the swash plate up to the shift point, resets the motion PHI of the swash plate by a calculated load-dependent value K during gear shifting, and, in the new gear range at a further decreasing speed of the internal combustion engine and accelerated resetting of the swash plate exits the area close to the shift point with almost constant rotational speed of the output shaft of the transmission and then, at a constant PHI angle of the swash plate, the rotational speed of the output shaft is increased to the previous level n.sub.

Abstract: A variable speed transmission includes parallel driver and driven shafts (54, 56) which mount respective series of intermeshing gears (60-65, 70-75) of progressively increasing gear ratio for selectively transmitting power from one shaft to the other. A series of two-way roller clutches are interposed between the driven shaft (56) and respective gear members (70-75) of the series of driven gears. The roller clutches are engageable for rotatively coupling the driven gears (70-75) to the driven shaft (56) and are disengageable for permitting relative rotation between the driven gears and the driven shaft. Each of the roller clutches includes a cam disk (10) having a plurality of recesses (20) formed in its peripheral surface and a roller retainer (12) circumferentially supporting a plurality of rollers (32) within respective recesses (20) in the cam disk.

Abstract: In order to permit a steering wheel to be simply connected to a steering shaft having a frusto conical tapered portion, a serrated or splined portion and a threaded portion, in a manner which permits ready adjustment of the wheels' position which respect to the shaft, the central boss of the steering wheel is divided into separate upper and lower boss members. The lower boss member seats on the tapered portion and is rigidly connected with the steering wheel. The upper boss member fits on the serrated portion so that relative rotation is prevented. By tightening a nut on the threaded portion of the steering shaft, force can be applied through the upper boss member to the lower one in a manner which produces a frictional engagement between the lower boss member and the tapered portion which prevents relative rotation.

Abstract: An apparatus and method for synchronizing shifting of a main transmission and a subtransmission, particularly in automatic transmissions having more than four speed ranges. Synchronism is achieved by initiating the shifting of the main transmission when the speeds of the input and output shafts of the main transmission achieve a predetermined relationship.

Abstract: A shift control system for an automatic transmission comprises: a first transmission assembly and a second transmission assembly connected in series to each other and individually having frictional engagement elements to be engaged, if subjected to oil pressures, and accumulators for regulating the oil pressures to be applied to the frictional engagement elements, so as to set any one of gear stages by applying the frictional engagement elements of one of the transmission assemblies to shift up the one transmission assembly and by releasing the frictional engagement elements of the other transmission assembly to shift down the other transmission assembly.

Abstract: A motion transmitting remote control cable assembly (10) includes a single piece junction box body (26) and a lid (30) having self-locking tangs, for automatically locking into engagement with the body upon the application of a compressive coupling force to the lid (30) and the body (26) for retaining the enlarged end (16) of a first core element (12) and the enlarged ends (16) of at least two other core elements (18,20). This junction box assembly (10) allows push-pull forces to be transmitted between the first core element (12) and the other core elements (18,20) in a confined environment.

Abstract: In order to improve only a pressure variation characteristic of hydraulic fluid supplied to a hydraulically actuable frictional coupling, but also a pressure variation characteristic thereof discharged from the coupling, a pressure regulator valve is provided which has a signal pressure port connected via a fluid passage to a shift valve. An accumulator is connected to the fluid passage at a portion between one end and an opposite end of the fluid passage. The pressure regulator valve is operative to cause a change in hydraulic fluid pressure supplied to the coupling in response to a change in a signal pressure at the signal pressure port.

Abstract: An active hydraulic pressure control system includes a sensor, a valve, a controller and an actuator. In accordance with a broad aspect of the present invention, the controller determines a pressure differential between the pressure sensed by the sensor in a high pressure supply line of a hydraulic system and a predetermined pressure. In response to such pressure differential, the actuator drives the valve which has a variable flow orifice to communicate hydraulic fluid between the high pressure supply line and a reservoir of hydraulic fluid to eliminate the pressure differential.

Abstract: The present invention relates to an operating mechanism for vehicles with automatic transmission, comprising a shift lever (1) which is moveable for selection of a desired shift lever position. A positioning means (7,8,9) interacts with a gate (10) so that the shift lever in at least one position is locked against movement if a control unit (7) is not activated. Further, the mechanism comprises a locking mechanism (15,16) which hinders said control unit (7) from being activated if a certain condition is not fullfilled, e.g. that the brake pedal has been depressed.

Abstract: A shaft retention system is disclosed that is particularly useful for attaching an axle to a side gear in a differential case. The shaft preferably has an inner end with opposed flat surfaces that extend to a groove in the shaft. A spring washer and clip having mating flats are mounted on the inner end, with the flats on the spring washer and clip aligned with the flats on the shaft end. The clip is then rotated relative to the spring washer, and tabs on the spring washer snap into a notch in the clip preventing further rotation between the two. In this position, the flats on the clip no longer align with the flats on the inner end of the shaft preventing removal of the spring washer and clip from the shaft. The clip is preferably C-shaped, with the notch formed by the open end of the C.

Abstract: A shaft connected to a component of a planetary gearset is driveably connected by a coupling to alternate friction elements in accordance with the relative speeds of the coupling members and the direction of rotation of the driven coupling member. The coupling includes a radially inner one-way coupling and an outer one-way coupling, the outer race of the inner coupling and inner race of the outer coupling being the intermediate race, which is connected to the gearset. The inner race and outer race have cam surfaces contacting roller clutch elements located in a cage and spaced mutually about the coupling axis. The cam surfaces of the races are inclined with respect to the adjacent surface of the intermediate race in opposite directions, so that when one coupling drives, the other coupling overruns.

Abstract: A camshaft is provided having longitudinally spaced cams for operating the valve lifters of an engine. Each cam has juxtaposed first and second cam lobes for operating at low speed conditions (city driving) and high speed conditions (highway). The profile of each cam lobe has a base circle area and the base circle areas of the lobes on each cam are of the same radius and overlap to provide a cross-over zone. While the engine is running and the camshaft is rotating, the camshaft can be shifted longitudinally between a first position in which the valve lifters contact the profiles of the first cam lobes of the cams and a second position in which the valve lifters contact the profiles of the second cam lobes.

Abstract: A power transmision with a hydrostatically branched variable-displacement gear (HG), a two-stage epicyclic gear (I, II) and a mechanical 8-speed transmission that can be operated in forward and reverse, and with a control system (ST) that triggers the clutches (VV, VR, V0-V8) of the mechanical gear means such that for starting, the variable-displacement gear (HG) is shifted unbranched to the output shaft (ASW) and the clutches are each shifted in a load-free manner, and only on shifting up to 6th gear via the clutch (K5) of the 5th gear and on downshifting to a selectable 4th gear via the 4th-gear clutch (K4) a synchronization of the intermediate shaft (ZW) is effected. Starting and reversing are done by hydrostatically; the efficiency is high; the mechanical transmission factor is approximately 60; synchronization wear is low; and there are only two synchronizing clutches (K4, K5).

Abstract: A shift interlock mechanism for an automatic transmission includes electro-hydraulic elements internal to the transmission which are operable to inhibit the supply of fluid pressure for engaging the forward and reverse speed ranges of the transmission. The electro-hydraulic elements are activated in response to various operating parameters of the vehicle, including range selector position, engine throttle position, depression of the service brake pedal, vehicle speed, etc. The mechanism does not interfere with movement of the transmission range selector, and includes a mechanical link for overriding the interlock function when the range selector is moved to a LO forward range, thereby providing an override in the event of a failure of the electro-hydraulic elements.

Abstract: A compact phasing transmission having an infinitely variable adjustment to the relative phases between the input shaft and output shaft of the transmission is disclosed. A harmonic drive pancake gear set is incorporated between the input shaft and output shaft of the transmission. A pancake motor is enclosed within the phase transmission and is coupled to the harmonic drive pancake gear set to provide input to the wave generator of the harmonic drive. The intermeshing of the pancake motor and harmonic drive between the input shaft and output shaft of the phasing transmission will cause the two shafts to rotate at the same speed. When the pancake motor is activated, the wave generator of the harmonic drive gear set will rotate thereby varying the phases between the input shaft and output shaft of the phasing transmission.

Abstract: An internal meshing type planetary gear reducer made of plastic material constructed in such a manner that an external gear fitted on an eccentric member integrally formed on an input shaft internally meshes with an internal gear, and inner pins formed on the external gear integrally therewith are inserted in inner-pin holes provided in a flange formed at one end portion of an output shaft so that rotation of the input shaft is reduced in speed and the speed-reduced rotation is transmitted to the output shaft. In the internal meshing type planetary gear reducer, each inner pin is provided with cutouts on inner and outer sides thereof in a radial direction of the external gear, or each inner-pin hole is provided with cutouts on inner and outer sides thereof in a radial direction of the flange, and only the inner pins which serve to transmit a torque at a predetermined range of the contacting location are arranged to be in contact with the inner-pin holes.