Abstract: A shift control method for an automatic transmission based on one of a first shift pattern based on vehicle speed and an opening degree of a throttle valve and a second shift pattern based on the vehicle speed and a road condition includes the steps of switching a vehicle shifting condition to the second shift pattern when the opening degree of the throttle valve is a first predetermined opening degree or smaller than the first predetermined opening degree, and switching the vehicle shifting condition to the first shift pattern when the opening degree of the throttle valve is a second predetermined opening degree or larger than the second predetermined opening degree which is larger than the first predetermined opening degree.

Abstract: An apparatus and method for controlling an automatic transmission having a controller that changes temporarily from the automatic operating mode, position D to a driver-influenced operating mode if a second rocker switch, which is arrange on the steering wheel, is activated. The automatic operating mode is not discontinued permanently, because after a set time has elapsed, the automatic operating mode becomes active again. Returning to the automatic operating mode is only possible if the current transverse acceleration is below a preset limiting value, and traction operation is in effect at the same time. The remaining time before returning to the automatic operating mode is set to a minimum value, after the manual operating mode has briefly been called up, as soon as one of the referenced conditions, which causes a return to the automatic operating mode to be suppressed, is no longer in effect.

Abstract: A hybrid vehicle control apparatus is provided which can improve fuel consumption. There is provided: a cylinder cut-off determination section for determining whether all cylinders should be cut off; a cylinder cut-off cancellation determination section for determining whether cylinder cut-off cancellation conditions have been satisfied; a cylinder cut-off execution section for operating a spool valve when the cylinder cut-off determination section determines that cylinder cut-off is possible; and a cylinder cut-off control section for cutting off the cylinders of the engine based on the operating conditions of the cylinder cut-off determination section, the cylinder cut-off cancellation determination section and the cylinder cut-off execution section.

Abstract: In a planetary gear speed reduction mechanism includes a drive gear, a driven gear, a sun gear connected to the drive gear, an internal gear disposed around the sun gear, a planetary gear meshed with the sun gear and the internal gear, a bearing for supporting the planetary gear, a carrier pin for supporting the bearing and a planet carrier connected to the carrier pin for transmitting revolving motion of the planetary gear to the driven gear, the bearing has a cylindrical inner wall forming an annular grease reservoir around the carrier pin at opposite ends thereof. The bearing can be lubricated by the grease supplied from the simple grease reservoir for long time.

Abstract: A system for shift control of an automatic transmission having a vehicle running status detecting part; a shift control part for outputting a control signal to perform a kick down skip 3-1 shift if conditions for the kick down skip 3-1 shift are satisfied with a tip-in manipulation during the 4-3 shift before stop by receiving an input of a signal detected by the vehicle running status detecting part, and for outputting an engine torque reduction requesting signal on the basis of the engine torque reduction starting point and engine torque reduction maintaining time determined according to a vehicle deceleration rate of the 4-3 shift before stop at the time of the kick down skip 3-1 shift, thereby relieving the shift shock at the time of the kick down skip shift generated by re-acceleration during a sudden stop of a vehicle.

Abstract: A kick down shift control apparatus of an automatic transmission of a vehicle comprising: vehicle running state sensing means for checking a running state of the vehicle; engine control means for controlling engine outputs in response to a signal sensed by the vehicle running state sensing means and outputting information on the temperature of intake air and the operational state of an air conditioner; shift control means for outputting a control signal to correct the pressure of transmission oil according to the temperature of absorbed air and the operational state of the air conditioner input from the engine control means, if conditions for a kick down shift are met with reception of the signal checked by the vehicle running state sensing means; and driving means for controlling the oil pressure discharged out by the oil pump according to the control signal output from the shift control means and performing a shift by providing the oil pressure for a relevant friction factor, thus relieving an shifting shoc

Abstract: A change-speed gearbox has an input shaft connected to an output shaft by at least one first and one second component transmission, arranged parallel to one another in the power flow and each having a frictional power-shift clutch and an intermediate shaft. The intermediate shaft can be operatively connected to the input shaft by the power-shift clutch, with at least one gearbox constant per component transmission. Each gearbox constant has a gearwheel on one of the two intermediate shafts, at least one of which can be operatively connected to a first layshaft arranged parallel to the input shaft. At least one gearbox constant can be brought into an operative connection with the first and the second power-shift clutch.

Abstract: A transmission assembly with an infinitely variable transmission component and a constant transmission component wherein the components are designed as modular units. The variable transmission module forms a self-contained functional transmission unit with a variable transmission housing, open on at least one side where it contains a flange. Within the flange area extends at least one infinitely variable output shaft of the variable transmission module. The flange allows the attachment of one constant transmission module of a plurality of modules of different power categories as desired.

Abstract: An arrangement of non-machined sheet metal synchronizer rings (1, 6, 10, 18, 19, 21) is provided, the outer synchronizer rings (1, 6, 10, 19) of which are provided a radial, outwardly projecting gear ring and a radial, outwardly directed flange (3).

Abstract: In a transmission with a first clutch including a first upstream rotary member to be driven by an input shaft, and a first downstream rotary member to be driven by the first upstream rotary member to drive an output shaft so that the first upstream and downstream rotary members are adapted to be selectively engaged with each other and disengaged from each other, an output shaft driving device includes a second upstream rotary member to be driven by the input shaft, and a second downstream rotary member to be driven by the second upstream rotary member to drive the output shaft.

Abstract: In order to achieve a repair-friendly and maintenance-friendly arrangement with improved conduction away of heat to the outside in a wheel drive, in particular for mobile machines, having a carrying axle (2) which is mounted fixed in terms of rotation to the vehicle frame (1) and which is rotatably connected as a wheel hub to a ring gear (4) via a roller bearing arrangement (3a, 3b), the ring gear (4) being driven via at least one planetary gear mechanism (24) with drive-end sun wheel (16), and an integrated dynamic service brake (24) being provided between the ring gear (4) and the carrying axle (2), it is proposed that the service brake (24) be arranged within the ring gear (4) at the end directly behind a detachable gear mechanism cover (11) and at the outer radius on a hollow-cylinder-shaped brake carrier (10) which forms the end piece of the carrying axle (2) which is fixed in terms of rotation, and that the planetary gear mechanism (34) be arranged behind the service brake (24), viewed from the end, wit

Abstract: An axial setting device for loading the friction plates of a coupling or for fixing the viscous plates of a coupling having two parts which are co-axially supported on a fixed housing and which are rotatable relative to one another. A pump assembly has housing parts that are connected to the one of the coupling parts and whose conveying elements are connected to the other one of the coupling parts in such a way that, when the parts rotate relative to one another, fluid is conveyed in the pump assembly. A reservoir is provided for fluid with a variable volume and a pressure chamber is delimited by an axial piston. A fluid connection is made from the reservoir to the chamber via the pump assembly and a fluid connection is made from the chamber to the reservoir via a bypass line with a solenoid valve.

Abstract: A gear shifting control device for varying a gear ratio of a synchromesh transmission which controls an actuator to agree with an actual value of sleeve load in an axial direction with a required value with higher accuracy at a synchronizer of the transmission. A continuously varying driving signal with time is supplied to the actuator when necessary to change the actual value of the sleeve load to the required value different from the current value. A reaching time of the driving signal reaching the value corresponding to the required value to the actuator is determined based on an initial speed which is a speed of the sleeve at start of supplying the driving signal and a vibration cycle when the sleeve load is vibrated in response to the supply of a step signal to the actuator.

Abstract: A transmission system for a straddle vehicle offers an automatic mode based on preprogrammed values for consistent shifting each time certain engine conditions are encountered. A variety of preset shifting parameters may be provided to allow different shifting modes. By this, an operator can select the degree of aggressiveness of the transmission. The automatic transmission may be modulated so that a preset shifting delay is provided to allow the operator to experience the sensation of shifting.

Abstract: A full-time two-speed transfer case is equipped with an integrated planetary gearset assembly and a range shift mechanism to provide high-range and low-range drive connections. The integrated planetary gearset assembly includes a first gearset which acts as a two-speed reduction unit and a second gearset which acts as an interaxle differential. The synchronized range shift mechanism is arranged to concurrently move two components of the first gearset and can be synchronized to permit on-the-move range shifts.

Abstract: The invention provides a strategy to stop a parallel HEV powertrain engine while maintaining smooth vehicle response to driver demand using the motor while simultaneously opening an engine disconnect clutch. In the preferred embodiment, the strategy stops an engine (based on, for example, driver demand), disconnects the disconnect clutch to the powertrain, halts fuel to the engine, and predicts a desired motor/generator speed. The prediction of desired motor/generator speed can be: a trajectory comparison based on present and past vehicle velocity and deceleration or on a vehicle accelerator position, or a determination of whether the vehicle is in speed following control mode. The system can also add additional strategies such as accelerate the strategy if a vehicle brake is applied. The gradual takeover by the motor occurs by proportionally decreasing actual engine torque until engine torque is zero while maintaining vehicle velocity using for example a proportional plus integral controller.

Abstract: A sliding surface is formed on an inner periphery of a drum member secured to a rear output shaft of a differential limiting device. There is provided a cam member between a projection and the sliding surface. The cam member has a friction surface slidable on the sliding surface and a V-shaped groove engageable with the projection. When a relative rotation occurs between the drum member and the carrier, the position where the projection is engaged with the V-shaped groove deviates so as to press the cam member toward the sliding surface. As a result, due to a frictional resistance of the friction surface against the sliding surface, first a differential limiting occurs between the drum member and the carrier and then a differential is locked up by a wedge effect of a corner edge of the cam member.

Abstract: An electrically-variable transmission has three modes of operation. The power in each of the modes of operation is split by differential gearing into a mechanical path and an electrical path between the input shaft of the transmission and the output shaft of the transmission. This is accomplished with three planetary gearsets and four torque-transmitting mechanisms that are judiciously engaged to provide the three modes of operation, which are an input-split mode and two compound-split modes. The transmission can be part of a system with electrical storage devices, which will supplement the engine power during some periods of operation.

Abstract: A pinion mounting with direct tapered roller bearing arrangement for differential gear mechanisms includes a first tapered roller bearing and a second tapered roller bearing to provide support for a pinion shaft, the pinion mounting and pinion shaft being removable from the differential gear mechanism without disassembly of other components of the differential gear mechanism. The first tapered roller bearing incorporates a continuous seal and o-ring, with the first tapered roller bearing either mounted to the differential gear mechanism case by retaining a mounting flange on the bearing cup, or threaded into the differential gear mechanism case by threads on the exterior of the bearing cup. A plurality of shims are used to set the bearing preload and to dimensionally set a pinion shaft gear with a ring gear of the differential gear mechanism.

Abstract: A shift-assisting device for a transmission, equipped with an electric motor for operating a shifting mechanism in the same direction as the direction of shifting operation of a speed-change lever. The shifting mechanism is coupled to the speed-change lever to actuate the synchronizing mechanism of the transmission. The electric power for driving the electric motor is determined depending on a shift stroke position detected by a shift stroke sensor and on a shifting force detected by a shifting force sensor.