Abstract: A variable-speed drive is activated by an actuator controlled by an electronic control system on the basis of engine and vehicle operating parameters. The control system according to the present invention is characterized by the fact that it comprises an actuating member located and operated manually on the gear lever; a detector for detecting the position of the actuating member and generating electric signals proportional to the same; and at least an electric circuit for generating electric signals for controlling and setting the actuator to predetermined positions corresponding to velocity ratios of the variable-speed drive proportional to the aforementioned electric control signals.

Abstract: A quick-return motion mechanism for use in an automatic magnetic drilling machine including a feed motor for generating power transferred through a worm wheel and a high-ratio reduction gear to a handle shaft to drive an electric drill. A one-way clutch is provided inside the worm wheel so that the handle shaft races on feed and is locked on return. The high-ration reduction gear is composed of elements which are arranged to cause the input and output sides of the high-ratio reduction gear to rotate in the same direction. The quick-return motion mechanism consists of an arrangement for restraining the input side element of the high-ratio reduction gear on feed and for releasing it on return to race the high-ratio reduction gear.

Abstract: To enable a torque transmitting device to be mounted between and removed from spaced aligned stub shafts (2a, 3a) of an electric motor (2) and a pump (3) without moving the stub shafts, the device is divisible and comprises three rotary members (15, 20, 30) connected serially with an elastic coupling (13B) and a controllable variable subclutch (10C) and a stationary member (40) able to transmit control signals to the clutch. At least three of the four members (15, 20, 30, 40) have central openings allowing insertion of the stub shafts.

Abstract: An automatic transmission wherein a gear train is constituted by three single pinion type planetary gear sets, provided with a first planetary gear set having a first sun gear, a first ring gear, and a first carrier holding pinion gears meshing with the first sun gear and the first ring gear, a second planetary gear set having a second sun gear, a second ring gear which is normally or selectively connected with the first carrier, and a second carrier holding pinion gears meshing with the second sun gear and the second ring gear, a third planetary gear set having a third sun gear normally or selectively connected to the second carrier, a third ring gear which is continuously connected with the first carrier, and a third carrier holding pinion gears meshing with the third sun gear and the third ring gear and connected to the output shaft, a first clutch means which selectively connects the input shaft and the first ring gear, a second clutch means which selectively connects the first sun gear and the second car

Abstract: In a damped double flywheel comprising two coaxial inertia masses which are mounted for relative rotation with respect to each other, against the action of springs and a viscous damper having a sealed, fluid-filled, cavity, the viscous damper is mechanically interposed between the two inertia masses, and comprises two closure members which are spaced apart axially by a spacer member so as to define its cavity. Each of the closure members is joined to the spacer member by at least one continuous weld seam.

Abstract: The present invention is a hydraulic system for an automatic transmission having a torque converter for receiving power from a prime mover, and an assembly of hydraulically operated friction elements which provide clutch and brake functions. The hydraulic system includes a pump, a regulator valve, and a torque converter control valve for regulating fluid pressure to the torque converter. The hydraulic system also includes a manual valve and a plurality of solenoid valves for controlling fluid flow received at least in part from the manual valve to each of the friction elements. The hydraulic system further includes a switch valve operatively associated with the solenoid valve for enabling two of the friction elements to be controlled from only one of the solenoid valves.

Abstract: During minimal load or so called power off upshifts, the level of the line pressure which is applied during the inertia phase of a friction element which becomes engaged as a result of the upshift, is controlled in accordance with the rotational speed difference between parts of the friction element which are rotatable relative to one another.

Abstract: A branched, infinitely variable hydromechanical transmission with multiple power-transmission paths for motor vehicles has an expanded first shift range to facilitate broadening of the overall gear-shift range to achieve higher power density and eliminates the need for a starting clutch. The transmission includes a first hydrostatic unit with an adjustable volume, a second hydrostatic unit, preferably with a constant volume, and one or more summation gear trains for adding together the power transmitted from the transmission input along hydraulic and mechanical power-transmission paths. The input shaft of the transmission is connected directly to the drive motor.

Abstract: A torsional damper type flywheel device including a drive side flywheel, a driven side flywheel rotatable relative to the drive side flywheel, at least one kind of spring mechanism connected between the drive side and driven side flywheels, and a friction mechanism arranged in series with the spring mechanism. An inertial plate is fastened to the drive side flywheel so as to construct one portion of the drive side flywheel so that a mass center of the drive side flywheel is shifted to an engine side to prevent the drive side flywheel from being deformed to an engine side when rotated at high speeds. Further, the engine side drive plate is bent at its radially intermediate portion so that a radially outer portion of the drive plate approaches the axial center of the drive side flywheel. As a result, an axial increase in width of the flywheel device due to the provision of the inertial plate is minimized.

Abstract: A shift control method/system for shifting an automated compound range type transmission (14) in only the auxiliary section (96) to provide a limp-home function if system faults adversely effecting continued main section (94) shifting are detected is provided.

Abstract: A gear differential includes planetary gear sets made up of two side gears (26, 28) mounted for rotation about a common axis (24) and pairs of element gears (36, 38) mounted for rotation about respective parallel axes (48, 50) that are both offset and inclined through acute shaft angles (L.sub.1, L.sub.2) with respect to the common side gear axis (24). The two element gears (36, 38) have first gear portions (52, 54) that mesh with respective side gears (26, 28) and second gear portions (56, 58) that mesh with each other. The side gears (26, 28) have respective helix angles (A.sub.1, A.sub.2) that are substantially equal in absolute magnitude but opposite in hand. However, lead angles of the side gears (26, 28), as the complements of their respective helix angles (A.sub.1, A.sub.2), are larger than the shaft angles to provide opposite directions of relative rotation between the side gears.

Abstract: In order to achieve adaptive correction of any undesired variance of servo activating hydraulic fluid pressure due to the change in ambient condition, a ratio (K.sub.Q) of actual mass airflow rate of engine intake air to standard airflow rate is determined. This ratio is used in deriving a judgment as to the ambient condition or modifying standard servo activating hydraulic fluid pressure.

Abstract: A differential unit comprises a differential carrier (12) supported in a housing (1) for rotation; output elements (16, 17) differentially rotatable relative to the carrier and connected to respective output shafts, differential gears connecting the output elements, and a friction assembly comprising a number of plates (22) rotationally fast with one element of the differential interleaved with a number of plates (24) rotationally fast with another element of the differential, the friction plates being axially loadable into frictional engagement with one another to restrict the differential rotation of the output elements. The friction plates are loadable by an actuating mechanism comprising an abutment ring (54) fixed in the housing and an actuating ring (28) movable angularly and axially relative thereto, with cam surfaces provided by circumferentially extending variable depth grooves (47, 48) in the rings with balls (49) therebetween engaging the grooves.

Abstract: A transfer case for a four wheel drive vehicle providing a central shaft defining a first output concentrically surrounded by a forward high/low drive range gear set and an aft dual planetary inter-axle differential gear set. A range clutch collar is disposed between the gear sets for selectively providing four wheel drive low range, neutral, and full-time four wheel drive high range. Likewise, a mode sleeve is disposed between the gear sets for selectively locking the differential gear set when the vehicle is shifted into its four wheel low range. Inner and outer relatively rotational drum housings surround the aft dual planetary differntial gear set for defining an annular viscous fluid coupling chamber therebetween.

Abstract: A motion transmitting remote control cable assembly (10) of the type for transmitting motion in a curved path comprises a first casing (12), first (14) and second (16) terminal blocks and a first core element (18) extending through the first casing (12) between the first and second terminal blocks (14,16). The assembly also includes a second casing (20) and a second core element (22) extending through the second casing (20) and between the first and second terminal blocks (14,16). The assembly (10) is characterized by means (24) for placing one of the core elements (18,22) in tension and placing the other core element (18,22) in compression while the one remains in tension for reducing backlash in the trnasmission of forces between the first and second terminal blocks (14,16).

Abstract: A damped double flywheel, for a motor vehicle, comprises two coaxial inertia masses which are mounted for rotation relative to each other against the action of a first series and a second series of springs. One of the inertia masses includes a damper plate having radial arms.An intermeidate pad is interposed radially between each spring of the first series and an associated spring of the other series. The springs are arranged to cooperate in pairs with the radial arms of the damper plate, and are arranged radially outwardly of the outer periphery of the main disc-like portion of the damper plate.

Abstract: A transmission including two input members for independently driving an output member in a single direction. The direction of the output is reversible. One of the inputs may be a handle and another a motor in the handle.

Abstract: A multispeed automatic transmission for automobile vehicles having parallel input shaft output shaft includes two parallel gearsets and of constant-mesh gearwheels providing two fixed speed ratios. The second speed ratio is higher than the first speed ratio and in same direction. A first power path using the first fixed speed ratio includes a first control clutch and a second control clutch, and a second power path using the second fixed speed ratio includes a third control clutch. Further, the transmission includes a double planetary gearset, a first control brake and a second control brake. Alternatively, the input shaft and output shaft are in alignment and one of the two speed ratios is a direct drive. The transmission features six forward speeds, a braked neutral and a reverse drive.

Abstract: The device combines the functions of a self-locking differential and a torque divider and operates to a prescribed ratio between the two driven halfshafts. The adjacent ends of the two halfshafts (1, 2) carry respective worms (11, 21), dissimilar in diameter, each paired with at least one worm wheel; these two worm wheels (12, 22) are carried by the cage (3) of the differential, and interconnected in rotation by way of a mechanical train having an overall transmission ratio matched exactly to the ratio existing between the pitch diameters of the worms (11, 21).

Abstract: This device comprises a motor (1), the output shaft (2) of which carries two coaxial worms (5, 6), offset axially and with opposite pitches, two pairs of wheels, (7, 9, 8, 11) meshing with the worms, mutually in pairs, at the rate of two wheels (7, 8; 9, 11) per worm, which wheels are arranged on either side of the worms, an output shaft (12, 13, 14, 15) traversing each wheel (7, 8; 9, 11) freely and intended to control an associated element at one or other of its opposite ends, and on each shaft (12 . . . 15) and facing each wheel (7 . . . 11), a clutch (E1, E2, E3, E4) independent of the other clutches and adapted in order to be able to link the selected shaft in rotation to the corresponding wheel. This arrangement makes it possible to produce a compact control assembly distributing, from a single location, multiple functions from a lightweight divider box ensuring the switching of the functions, with a reduced overall size and a simplified single connection.