Abstract: A transmission having ratios from 0:1 to 1:1 is disclosed; the transmission comprises a plurality of clutches for producing a partial rotational output from a reciprocating input, an output gear for collecting the partial output of the clutches, an input gear for providing rotational input to a varicrank (i.e. an index plate/web shaft slidably and rotably disposed in a rotatable cylindrical block), and a varicrank (i.e. an index plate/web shaft slidably and rotatably disposed in a rotatable cylindrical block) for producing reciprocal motion on the clutches. The varicrank has a variably offset center web member having a plurality of connecting rods secured thereto corresponding to the number of clutches and a plurality of crank arms pivotally secured to the connecting rods.

Abstract: A manually shifted, range-type compound transmission (110) is provided with enhanced automatic range shifting. A controller (222) receives input signals indicative of shift lever position in the shift pattern (low range/high range) and of vehicle speed (OS) and automatically commands range shifts as a function of both system parameters.

Abstract: A controller for a planetary differential type reduction gear device (1), in which a driving force of a motor (10) is controlled by controller and the speed is reduced by the planetary differential type reduction gear device (1) so that the reduced speed is transmitted to an output side and a predetermined work is carried out by the driving force on the output sides and in which an output rotation detector (14) is provided on the output side of the planetary differential type reduction gear device (1) so that the driving force of the motor (10) is controlled on the basis of information from the output rotation detector (14) to thereby carry out the predetermined work. The detection is made in the vicinity of the object to be controlled to thereby improve the control accuracy as well as the structure.

Abstract: In a parallel-axis differential, a pair of sun gears are received in a housing in a coaxial relation. Also, at least a pair of planetary gears are received in the housing in parallel relation with the sun gears. The planetary gears of the pair are in engagement with the pair of sun gears, respectively and also in engagement with each other. A window opening for introducing lubricating oil is formed in the housing. Also, a fin for guiding the lubricating oil toward the window opening is formed on the outer surface of the housing. The fin is situated on the rear side of the window opening with reference to one rotating direction of said housing.

Abstract: A motor vehicle shift control apparatus wherein two hydraulically operated frictional coupling devices are simultaneously released and engaged, respectively, to effect a clutch-to-clutch shift of an automatic transmission, including an overshoot control device for compensating the hydraulic pressure of at least one of the coupling devices during the clutch-to-clutch shift such that the amount of engine speed overshoot is held within a predetermined range, and an inhibiting device for inhibiting an operation of the overshoot control device if a preventing device for preventing an excessive rise of the engine speed above an upper limit is expected to be activated, or if the preventing device is in operation. The inhibiting device may be replaced by a device for reducing the output of the engine if the engine speed is higher than a threshold not higher than the upper limit.

Abstract: A split torque transmission includes a hydrostatic transmission and a mechanical transmission both being driven by an engine. The output of the hydrostatic transmission and the mechanical transmission are both selectively coupled to a machine through a final output shaft. The mechanical transmission incudes a full range high forward and reverse mechanism selectively coupled to a planetary arrangement. The planetary arrangement sums the speed of the hydrostatic transmission with the full range high forward and reverse mechanism. This arrangement provides a smooth and continuous change in the speed of the machine in both the forward and reverse directions throughout its entire speed range which is identical in both directions of travel.

Abstract: The present invention relates to a method and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutch. According to the control method of the present invention, when the lockup clutch is in the lockup state, a variation of a generated torque is detected. When the range of the torque variation detected exceeds a predetermined value, an engine torque is reduced by controlling the engine, and the automatic transmission is controlled to compensate for a reduction of the driving torque due to a reduction of the engine torque. Thus, the speed change ratio is changed to the low gear side.

Abstract: A planetary gear drive assembly for a rotary sprinkler includes a drive housing in which a planetary gear train is enclosed. A turbine located beneath one end of the drive housing rotates the gear train through a turbine shaft that extends into the drive housing. An output shaft extends out of the other end of the drive housing for rotating the nozzle assembly of the rotary sprinkler. The drive assembly includes an alignment means for causing the planetary gears in each stage of the gear train to self align the planetary gears relative to an internal ring gear on the drive housing as each stage is slid into the drive housing during assembly. The alignment means comprises a stepped extension on a forward edge of the ring gear that extends around only a portion of the circumference of the ring gear.

Abstract: A control system for an automatic transmission for a vehicle provides an enhancement in a shifting characteristic in a manually shifting mode by controlling an operating hydraulic pressure for hydraulic engage elements in an appropriate manner. In a first range from the output of a shifting command to a time point when a timer TOIPU reaches a counting-up value, or a time point when the slip rate ECL of the hydraulic engage elements exceeds a value YECLIPUS, the operating hydraulic pressure is set at a preset value depending upon the type of shifting. In a second range from the end of the first range to a time point when the timer TOIPU reaches a counting-up value, or a time point when a slip rate ECL exceeds a value TECLIPUS, and in a third range from the end of the second range to a time point when a timer TKAK reaches a counting-up value, the operating hydraulic pressure QAT is set at a value corresponding to an engine torque or a transmission input torque.

Abstract: An automatic transmission gear shift control system controls a transitional pressure level during a gear shift according to engine output conditions and correctively changes a rate at which the transitional pressure changes according to a time difference between an actual gear shift time and a target gear shift time when an engine output is less than a specified level. If the corrected rate is greater than a specified rate, then the transitional pressure level is increased. According to the control system, even when a drop in the transitional pressure does not cause a change in shifting time, a shifting time learning control is properly conducted.

Abstract: In a power train control apparatus including an engine, an automatic transmission having a torque converter, and a control unit for controlling the engine and the automatic transmission, the control apparatus is provided with a microcomputer for calculating and estimating values of the input shaft torque and a gear ratio of the automatic transmission. Various characteristics of the engine and the torque converter are obtained in advance by experiments, such as the relationship between an engine torque and an engine speed, and that between a pump capacity coefficient data and a slip ratio of the torque converter. Thereafter, data tables are made by using these characteristics, and control factors required to control the engine and the automatic transmission are made as an equation in relation to the input shaft torque and the gear ratio so as that they can be calculated by the microcomputer.

Abstract: An automatic transmission for outputting shifting commands by manual operation of a manual shift lever in addition to an automatic shifting. When a first-stage shifting command is output, a clutch timer is set. When a second-stage shifting command is output during counting by the clutch timer, the second-stage shifting is prohibited. A shifting command storage timer is set simultaneously with the prohibition of the second-stage shifting. If the time is counted up by the clutch timer during counting by the shifting command storage timer, the second-stage shifting is permitted at this time point. If the time is counted up by the shifting command storage timer earlier than by the clutch timer, the second-stage shifting command is canceled. Thus, the first- and second-stage shifting operations are prevented from being continuously conducted, thereby suppressing the time lag required for the engagement of the hydraulic engagement element to the minimum.

Abstract: A differential drive having a drivable differential carrier supported in a drive house. The differential drive includes two axle shaft gears which are coaxially supported in a first bore. A plurality of pairs of differential gears which are eccentrically supported in an axis-parallel way in the differential carrier second and third bores. The longer hub extension opposed to a region of engagement with the associated axle shaft gear is radially fixed. The shorter hub extension adjoining a region of engagement with an associated axle shaft gear is laterally guided in a radial direction.

Abstract: A failure detecting method and apparatus for an automatic transmission of a vehicle having a vehicle speed sensor mounted on said vehicle for sensing a vehicle speed and an inhibitor switch attached on said automatic transmission for detecting a gear shift range position, The method is carried out by judging whether the vehicle speed is larger than a predetermined value; checking whether a neutral range position is detected; detecting whether another gear shift range position is absent after a predetermined time has lapsed; and then controlling the automatic transmission as if the gear shift range position is in a drive range. This enables one to precisely detect a failure of the range signal line and to control the automatic transmission in an optimum condition under any driving conditions.

Abstract: An automatic transmission used in a vehicle for producing one of four forward speeds or a backward speed, which includes a torque converter with an impeller, turbine and stator for changing the torque speed of the power of the engine; a first planetary gear unit having a first sun gear, first planetary gear, a first planetary carrier and first ring gear; a second planetary gear unit having a second sun gear, second planetary gear, a second planetary carrier and second ring gear; a first transfer gear connected to the first planetary carrier for transferring the torque of the first planetary gear to the second ring gear; a second transfer gear connected to the second planetary carrier for transferring the torque of the second planetary gear to aid first ring gear; a first transfer shaft for transferring the torque of the turbine to the first planetary gear unit, the first planetary gear unit and first transfer gear being mounted on the first transfer shaft; a second transfer shaft for transferring the torque r

Abstract: A bearing lubrication system for a final drive arrangement includes a first oil supply chamber and a rotatable gear within the first chamber. A first housing, which defines the chamber, contains a passageway which connects the first oil chamber with a cavity adjacent a first bearing assembly. The cavity is in fluid communication with a second oil chamber and a second bearing assembly by way of a longitudinal bore. A steel ring member prevents lubricating fluid from flowing past the first bearing assembly and ensures a supply of fluid to the second bearing assembly.

Abstract: A two-speed differential adapted for use in motor vehicle driveline applications. The two-speed differential is capable of selectively transferring power to either a first drive mechanism for establishing a first drive speed ratio or a second drive mechanism for establishing a second drive speed ratio. The selected drive mechanism then transmits power to an output mechanism for subsequent transmission to the driving axles of the motor vehicle while permitting speed differentiation therebetween. In one aspect of the present invention, the first drive mechanism provides a "direct drive" speed ratio and the second drive mechanism provides an "overdrive" speed ratio. In another aspect of the present invention, the first drive mechanism provides a "direct drive" speed ratio and the second drive mechanism provides an "underdrive" speed ratio.

Abstract: A control system and process for an infinitely variable transmission which has a first operating mode which automatically selects the transmission ratio, and a second operating mode in which the transmission ratio can be selected directly by the driver. According to the invention, the degree of damping effective during the adjustment of the transmission ratio is adjusted in response to the selected operating mode. In the automatic operating mode, a high degree of damping is used, while in the manual operating mode, a lower degree of damping is provided.

Abstract: A device for rotating a first structure relative to a second structure has a rotatable shaft for attachment to the first structure. A first cylinder is coaxially attached to the rotatable shaft, and has a plurality of bearing constraining apertures for holding a plurality of bearings. A hollow fixed member for attachment to the second structure has a coaxially attached second cylinder outside of the first cylinder. The second cylinder has a plurality of bearing seats on its inside wall for selectively receiving the bearings. The number of bearing constraining apertures is different from the number of bearing seats, so that the bearings are harmonically aligned by the constraining apertures to be movable to within the bearing seats only at selected progressive locations. A handle is coaxially and rotatably mounted to the fixed member, and carries a cam inside the first and second cylinders.

Abstract: Electronic and hydraulic control system of an automatic transmission for automotive vehicle and method for controlling hydraulic pressure whereby line hydraulic pressure can be compensated. A hydraulic pressure state within the electronic and hydraulic control system is precisely detected and the signal of this detected hydraulic pressure is transmitted to a transmission control unit such that the malfunction of the valves and the correct gear shifting stage can be determined. Since the hydraulic pressure state can be detected to be compensated by the control of the TCU, the shift quality can be improved.