Abstract: An object is to provide a tilting-pad bearing device whereby it is possible to levitate a rotation shaft with a low supply-oil pressure. A tilting-pad bearing device includes a plurality of bearing pads disposed around a rotation shaft so as to support the rotation shaft rotatably, a support member interposed between the plurality of bearing pads and a bearing housing supporting the plurality of bearing pads, the support member supporting each of the plurality of bearing pads pivotably, and an oil-supply mechanism configured to supply a lubricant oil to at least one oil groove formed on a bearing surface of at least one of the plurality of bearing pads. The at least one oil groove is disposed inside and outside a contact area of the bearing surface which is in contact with an outer circumferential surface of the rotation shaft when the rotation shaft is stopped.

Abstract: A down hole motor is used in the oil prospecting industry to drive drill bits for drilling the ground at great depths. The down hole motor (1) includes a drive shaft (5) held in the motor body (3) by an axial thrust bearing (6) and by a radial bearing (7). The radial bearing (7) is a tubular member whose interior surface is coated with an anti-abrasion layer (11) formed by laser-assisted facing directly inside an alloy steel radial bearing body (10). The thickness of the facing layer is then reduced by removing material by the use of a cutting tool. This produces a radial bearing (7) that is relatively insensitive to drilling mud and confers great reliability on the down hole motor (1).

Abstract: Provided herein is an apparatus, including a stationary component; a rotatable component; a fluid dynamic bearing defined by the stationary component and the rotatable component; a first channel substantially parallel to the fluid dynamic bearing; a second channel substantially perpendicular to the first channel; and a fluid reservoir substantially parallel to the first channel, wherein the second channel fluidly connects the fluid reservoir to the first channel.

Abstract: A hub-bearing assembly including a rolling bearing having an outer ring, at least an inner ring and at least a row of rolling bodies is provided. The rolling bearing including a housing containing the rolling bearing and having an annular cylindrical shape, the housing at one end forming a radial flange, a closing cap, assembled on the housing at the opposite end with respect to the end, where the housing forms the flange, the cap being cup shaped and having a bottom wall, transverse to the rolling bearing axis, and a side wall, constrained to the bottom wall. First assembly means provided on the housing external wall, the first assembly means being fixed and localized in angular correspondence with the ribs and cooperating with second assembly means, movable and realized on the internal surface of the side wall for assembling, in a dismantled way, the cap on the housing.

Abstract: A swaged bearing assembly includes a flange mounted thereon. A bearing inner member has an outer surface at least a portion of which defines an outer engagement surface. A bearing outer member is swaged around the inner member and the inner member is misalignable and rotatable in relation to the outer member. The outer member has an outer surface and an inner surface at least a portion of which defines an inner engagement surface. An area of engagement is defined by an interface of the inner engagement surface of the outer member and the outer engagement surface of the inner member. A flange is mounted on the outer surface of the outer member.

Abstract: A bearing assembly for rotatively holding a shaft with respect to a support member and comprises: a bearing, with a rotatable ring and a fixed outer ring to be immobilized within a housing of said support member. An encoder washer is fast in rotation with the rotating ring. At least one sensor is adapted to detect at least one rotation parameter of the encoder washer and a sensor body holds this sensor. An annular flange is used for mounting said sensor body with respect to the fixed outer ring. The annular flange has a first skirt and a second skirt which define, between them and a bottom wall of the flange, an annular recess for accommodating at least a part of the sensor body. In mounted configuration of the bearing assembly, the first and second skirts extend respectively towards the rotatable and fixed rings.

Abstract: An example coupling stack includes a first rotating member and a second rotating member. A plurality of aligned slots is defined in the first rotating member and the second rotating member. A tab lock is provided having an annular body with an axial front side, an axial back side, and a radial inner periphery. Tabs are formed on the axial back side and inserted into the plurality of aligned slots. The annular body of the tab lock also includes a plurality of openings extending into the radial inner periphery. A plurality of flanges is provided on the axial back side of the annular body adjacent to the plurality of openings.

Abstract: The constant velocity joint has the input shaft (1), the output shaft (2), two toothed spherical left arms (4L), two toothed spherical right arms (4R), and the stabilizing mechanism (3). The stabilizing mechanism (3) is made up of stabilizing segments (3.1) and (3.2). Stabilizing segments have limited degrees of freedom except the possibility of partial rotation around the axis of the stabilizing mechanism (3). Each stabilizing segment (3.1) or (3.2) is associated with one toothed spherical left arm (4L) and one toothed spherical right arm (4R) attached by means of bolts (6) and two groups of rolling elements (8) such that they can only rotate around the axes of the bolts (6). The input shaft (1) carries on its body two arms (1.1) and (1.2). The output shaft (2) carries on its body two arms (2.1) and (2.2). In arms of both shafts there are outer rolling paths created for groups of rolling elements (9), which perform the function of radial-axial bearings.

Abstract: A clutch mechanism for a vehicle drive uses a drive gear having an interface element rotatable therewith, and a hub driving an output shaft. A ring is disposed proximate to and selectively engagable with the interface element. An adjustment mechanism moves the ring between an engaged position with the interface element to transfer rotational force from the drive gear to the shaft, and a disengaged position in which the ring is disengaged from the interface element. At least one spring engaged to the hub and the ring biases the ring to the engaged position.

Abstract: A wet clutch for a motorcycle having an outer basket having a first toothing as the input side of the wet clutch, an inner basket which is coaxial to the outer basket having a second toothing as the output side of the wet clutch, first frictional elements which are torsionally connected to the outer basket, second frictional elements which are torsionally connected to the inner basket, the first and second frictional elements being situated axially alternating between the inner basket and the outer basket, and a clamping element to compress the first and second frictional elements axially in order to produce a torsional connection between the input side and the output side. The inner basket and/or the outer basket can essentially be produced from one or more sheet metal parts.

Abstract: A power transmitting apparatus which can suppress the rotational vibrations by suppressing rotation of the pressure member relative to the clutch member is provided. The power transmitting apparatus can comprise a clutch housing rotatable together with an input member and a plurality of driving-side clutch discs mounted thereon; a clutch member with a plurality of driven-side clutch discs mounted thereon and interleaved with the driving-side clutch discs; and a pressure member axially movably relative to the clutch member to increase or release the press-contacting force acting on the driving-side clutch discs and the driven-side clutch discs. The power transmitting apparatus can further comprise one or more slide-suppressing members for applying sliding resistance to the pressure member when the pressure member is rotated relative to the clutch member.

Abstract: A coupling member subassembly for use in a controllable coupling assembly and an electromechanical apparatus having a pair of simultaneously actuated elements for use in such a subassembly are provided. The apparatus includes a housing, an electromagnetic source having at least one excitation coil surrounded by the housing and a pair of spaced first and second elements. A reciprocating armature is arranged concentrically relative to the at least one excitation coil and is axially movable when the at least one excitation coil is supplied with current. An actuator bridge is mounted for axial reciprocating movement with the armature and is connected to the elements at opposite ends of the bridge to move the elements in unison between first and second positions during axial movement of the armature to control the operating mode of the assembly.

Abstract: A power transmission apparatus is provided with a first rotational member, a second rotational member, a clutch device for coupling a power transmission between the first rotational member and the second rotational member, and a ring shape actuator of the clutch device. A rotational axis of one of the first rotational member and the second rotational member penetrates through a radially internal space of the ring shape actuator.

Abstract: A vapor transport device can include a tube, a first cap positioned at a first region of the tube, a second cap positioned at a second region of the tube, and a piston positioned between the first cap and the second cap so as to divide the tube into a first chamber of variable size that extends between the first cap and the piston and a second chamber of variable size that extends between the piston and the second cap. The vapor transport device can further include a drive shaft connected to the piston and extending through the second cap, and can also include a plurality of one-way valves.

Abstract: A freewheel device having a switchable freewheel which may include a first race, a second race, locking elements arranged between the first and second races and a locking element cage for receiving the locking elements. The locking element cage may be rotated relative to the first race to a first rotational position in which the first race is in rotationally entraining connection to the second race via the locking elements and to a second rotational position in which the first race is not in rotationally entraining connection to the second race. The switching device may be formed by a first planetary gear, a second planetary gear and a switching drive.

Abstract: A method and a device for calibrating a wet clutch is provided. The clutch comprises a pump, a piston, a proportional valve, a controller, and a pressure sensor. The method comprises the steps of closing the clutch by sending a pressure profile with fill parameters from the controller to the proportional valve, recording a pressure signal of the hydraulic fluid, comparing the pressure profile with the pressure signal, determining whether at least one defined feature is in the pressure signal that is indicative of errors in the fill parameters, and if said feature is determined in the pressure signal, modification of the pressure profile by changing at least one of the fill parameters.

Abstract: A brake assembly for an elevator traction machine is disclosed. The brake assembly may include a rotating element, a fixed element mounted in operational association with the rotating element and a positioning device connected to the fixed element. The positioning device may additionally magnetically interface with the rotating element to facilitate centering of the fixed element relative to the rotating element.

Abstract: An Assembly (1) of a fixed caliper and hub bracket (101), comprises a fixed caliper (2) having a first vehicle-side elongated portion (7) that comprises a first disc entry-side tangential end (8) and a second disc exit-side tangential end (9); said portion (7) being suitable for facing an axial inner surface (10) thereof towards a first braking surface (4) of the disc (3); said first portion (7) housing at least one cylinder (11) suitable for receiving a piston; said caliper body (6) also comprises a second wheel-side elongated portion (12) that comprises a first disc entry-side tangential end (14) and a second disc exit-side end (15); said second portion (12) houses at least one cylinder (16); said first and second elongated portions (7, 12) being connected together by at least one bridge (17); said caliper body (6) also comprises at least one first seat (18) arranged in said first vehicle-side elongated portion (7) to receive a first connection element (19) to connect said fixed caliper to a hub bracket (10

Abstract: A brake rotor for attachment to a wheel of a vehicle may include an outer friction member and an inner friction member. The brake rotor may further include a plurality of fin elements connecting the outer friction member to the inner friction member. Each fin element may include first and second pillars that are connected by a bridge portion to define an opening in the fin element. The opening is configured to allow air to pass through the fin element.

Abstract: Present embodiments relate generally to brake systems, and more specifically, to caliper-based brake systems. In an embodiment, a method includes electrifying at least a portion of a first inner surface of a first brake block with a first potential. The method also includes electrifying at least a portion of a second inner surface of a second brake block with a second potential that is different from the first potential. The method includes performing an electrical measurement between the first brake block and the second brake block, wherein the electrical measurement include a voltage measurement, a current measurement, a resistance measurement, a frequency measurement, or a combination thereof. The method further includes determining a position of the first and brake blocks relative to a brake member based on the electrical measurement.

Abstract: A spring includes at least one spring portion that extends over an arc of at least 90° when projected onto a cross-sectional area perpendicular to a force direction of the spring in an unloaded condition thereof. The spring portion has an elliptical shape in the projection. A system including one or more springs is also described.

Abstract: An apparatus for variable shock absorption is provided. The apparatus includes a pair of elastic members that cross each other and a first support that has both ends coupled to predetermined first ends of the elastic members. A second support faces the first support and has oblong grooves in which second ends of the elastic members are inserted to slide in opposite directions. When an external force is applied to the first support or the second support, the distance between the first support and the second support changes and the angle formed by the pair of elastic members changes based on the change of the distance between the supports.

Abstract: A pseudo-linear hydro-pneumatic isolation spring includes a cylinder having an interior partially filled with a hydraulic fluid as well as a piston assembly that is movably disposed within the cylinder including a piston head and a piston rod. A plurality of accumulators are fluidically connected to the interior of the cylinder in parallel, each of the accumulators being charged to a different pressure and size so as to actively engage the cylinder only after a threshold pressure force based on fluid displacement of the piston in the cylinder has been reached.

Abstract: A shock absorber for a motor vehicle including an outer cylinder having upper and lower end walls, an inner cylinder disposed within and coaxially relative to the outer cylinder, connected to the upper end wall of the outer cylinder, providing an annular chamber with the outer cylinder and having a partition wall at a lower end thereof spaced from the lower end wall of the outer cylinder, and a piston having a head portion disposed in the inner cylinder and a rod portion extending through the partition wall of the inner cylinder and the lower end wall of the outer cylinder, wherein the annular chamber is filled with a gas, the inner cylinder is filled with a damping fluid and the piston head and the end wall of the inner cylinder are provided with one-way valves.

Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.

Abstract: A shock absorber is provided having a housing, an inner tube, a piston rod, a piston which divides the interior of the inner tube into a lower chamber and an upper chamber, a first valve arrangement on the piston, a second valve arrangement at the upper end of the inner tube, and a third valve arrangement at the lower end of the inner tube. The shock absorber includes a first connection element on the lower chamber of the inner tube and a second connection element on the upper chamber of the inner tube, to connect a means for controlling the flow resistance of the working medium in the first valve arrangement and an ascending pipe which projects into the working medium received in the housing and by which working medium can be transferred from the housing acting as a tank into the upper chamber of the inner tube.

Abstract: The present invention is a networkable, peripherally valved hydraulic shock absorber and damper apparatus which is a substantial improvement and major advance over the shock absorber and damping systems conventionally known to date. The apparatus employs an elevated viscosity hydraulic fluid as a damping medium; and presents a unique structural arrangement that utilizes peripheral valving to shunt a high viscosity hydraulic fluid between the peripheral edges of the piston mechanism and the cylinder wall.

Abstract: The electromagnetic vibration suppression device includes a plurality of electromagnet pairs arranged in the width direction of a steel plate and which suppresses vibration of the steel plate running between electromagnets in each electromagnet pair using a control unit. The pseudo displacement calculation means calculates a pseudo displacement amount for the steel plate on the basis of the switching between ON and OFF of a sensor attached to the electromagnet pairs. The pseudo edge position calculation means calculates a pseudo edge position for the steel plate on the basis of the pseudo displacement amount. The current amount control means individually controls the amount of current that flows to the electromagnets on the basis of the pseudo edge position.

Abstract: A torsional vibration damping arrangement for the drivetrain of a vehicle includes an input region to be driven in rotation around an axis of rotation (A) and an output region, and a first torque transmission path and parallel thereto a second torque transmission path which proceed from the input region, and a coupling arrangement for superposing the torques guided via the torque transmission paths, which coupling arrangement communicates with the output region, and a phase shifter arrangement for the first torque transmission path for generating a phase shift of rotational irregularities guided via the first torque transmission path relative to rotational irregularities guided via the second torque transmission path. The torsional vibration damping arrangement is formed with an axial distance between the phase shifter arrangement and the coupling arrangement to form a passage space for at least one driveshaft of a vehicle.

Abstract: A dual mass flywheel includes a first arcspring and a second arcspring being symmetrically mounted along an inner circumference of a primary cover connected to a crankshaft, a flange being inserted into the primary cover and including a first compressor and a second compressor formed therein, which contact the first arcspring and the second arcspring, respectively, a first stopper and a second stopper configured to support the first arcspring or the second arcspring and being formed on the inner circumference of the primary cover, and a first guide shell and a second guide shell disposed on the inner circumference of the primary cover, guide deformation of the first arcspring or the second arcspring in a radial direction, and including a friction inductor that contacts the first compressor or the second compressor.

Abstract: A splicing device (10) for closing a looped material band (1) comprising two splicing elements (20, 30) intimately linked to the ends (2, 3) of the material band (1), assembled together by fitting two toothings (22, 23) into each other, and locked by a transverse locking rod (15) inserted in the aligned transverse openings (14) of the teeth (13) of each toothing. The splicing elements (20, 30) are made out of a material compatible with that of the material band and comprise a traction core extending longitudinally up to the teeth (13) and surrounding the transverse opening (14) of teeth (13) of each toothing (22, 32) so that, when the splicing device (10) is assembled and locked, the traction cores of the splicing elements ensure the tensile strength of the splicing device (10) while remaining very flexible.

Abstract: A pair of toothed wheels that mesh with each other includes a plateau portion. The surface of the plateau portion is a plateau-structure surface formed on each tooth face of each of the pair of the toothed wheels, with peak portions of convexities, out of a plurality of concavities and the convexities provided on the each tooth face, being flat. A reduced valley depth Rvk of the plateau portion of one of the pair of the toothed wheels as defined in JISB0671-2 is greater than the reduced valley depth Rvk of the plateau portion of the other of the pair of the toothed wheels. The area occupied by the concavities in the plateau portion of the one of the toothed wheels is larger than the area occupied by the concavities in the plateau portion of the other toothed wheel.

Abstract: A mechanism for switching a sample holder (14, 40) accommodating a fluidic sample (38) between an orbital motion mode for sample mixing, particularly for shaking, and a rotary motion mode for sample separation, particularly for centrifuging, wherein the mechanism comprises a gear element (11) being drivable by a drive unit (42) to move selectively in a first direction (A) or in a second direction (B) being inverse to the first direction (A), an orbital motion generator (2 to 5) configured for generating an orbital motion of the sample holder (14, 40) when being operated in the orbital motion mode, a rotary motion generator (2, 4, 5) configured for generating a rotary motion of the sample holder (14, 40) when being operated in the rotary motion mode, and a one-way clutch arrangement (12, 13) configured for selectively coupling the gear element (11) with the orbital motion generator (2 to 5) to transfer a driving force from the gear element (11) to the orbital motion generator (2 to 5) for generating the orbita

Abstract: Transmission group for vehicles comprising an engine provided with at least one engaging device, arranged between transmission gears and mobile between a first rest position, wherein the transmission gears are mutually integral and both in mesh with a transmission shaft, and a second working position wherein the first gear is in mesh with the transmission shaft and the second gear is unconstrained both with respect to the transmission shaft and with respect to the gear, provided for being means for actuating of the engage device, wherein the engine, the output gear and an output shaft are integrated in a first module fixed to the vehicle and that the transmission shaft, the transmission gears, the engage device and the actuating means thereof are integrated in a second module independent and demountable with respect to the first module.

Abstract: A multi-stage transmission in which carrier of first gear set is connected to ring gear of fourth gear set, ring gear of first gear set and carrier of second gear set can be coupled to housing via first brake or to drive shaft via first clutch. Sun of first gear set and sun of second gear set can be coupled to housing via second brake. Sun of third gear set and sun of fourth gear set can be coupled to housing via third brake. Drive shaft can be coupled to ring gear of second gear set via second clutch. Ring gear of third gear set and carrier of fourth gear set can be coupled to drive shaft via third clutch, and output shaft is connected to carrier of third gear set.

Abstract: A power transmission system of a hybrid electric vehicle includes an input shaft a first planetary gear set disposed on the input shaft while having a first sun gear, a first planetary carrier, and a first ring gear, a second planetary gear set having a second sun gear, a second planetary carrier, and a second ring gear, a third planetary gear set having a third sun gear, a third planetary carrier, and a third ring gear, first to sixth rotation shafts and three friction elements selectively connect the respective rotation shafts to each other or selectively connect the respective rotation shafts to the transmission housing.

Abstract: A Contoured Radius Continuously Variable Transmission (CRCVT) varies the torque and speed of an output component relative to the torque and speed of the input component by forming the contour of a belt-like component so that the belt-like component's radial distance from the input and/or output axis is gradually altered from being uniform throughout its length to being varied for different periods along its length.

Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) having a variator provided with a plurality of tilting, traction planets and traction rings are described. In one embodiment, a variator is coupled to a rangebox to provide multiple operating modes. In another embodiment, a hydraulic system is configured to control the transmission ratio of the variator and the rangebox. Shift-cam-and-sun subassemblies can be used to facilitate shifting of the transmission ratio of a CVT. A transmission housing and bell housing can be adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Related devices include, for example, a pivot arm, a control feedback mechanism, axial force generation and management mechanisms, a control valve integral with an input shaft, a pivot pin hub, and a rotatable carrier configured to support planet-pivot arm assemblies.

Abstract: A linear electro-mechanical actuator, includes a containment structure (2), one or two pushers facing each other (7), a nut (5) rotatable about an axis (X) driven by a driving force, a screw shaft (6) inserted in the nut (5), connected to the pushers and interconnected with the nut (5) via a helical recirculating ball coupling (5a, 6a), and an anti-rotation mechanism (8) acting on the screw shaft (6) to prevent the screw shaft (6) from rotating about the axis (X). The anti-rotation mechanism (8) includes a pair of fixed guide bars (9), coupled in a sliding fashion with the screw shaft (6) and extending along a direction parallel to the axis (X) and spaced from the axis (X).

Abstract: A power transmission unit including a first clutch device that selectively enables and disables a torque transmitting route from an input shaft to an output shaft via a first gear train to transmit torque therethrough, a dog clutch that switches the torque transmitting route from the input shaft to the output shaft between a continuously variable speed change route in which torque is transmitted through a continuously variable transmission and a reverse route in which torque is transmitted through a second gear train, and a second clutch device that selectively enables and disables both of the continuously variable speed change route and the reverse route to transmit torque to the input shaft or the output shaft. The first clutch device and the second clutch device are separately disposed on any of the input shaft and the output shaft in a manner to be situated at different axial positions.

Abstract: The drive system comprises a drive unit. The drive unit comprises a motor unit and a gear train coupled to the motor unit. The gear train comprises a differential planetary gear system having a single input shaft connected to the motor unit. The differential planetary gear system further has at least two output shafts of which each output shaft is arranged for driving a drive shaft. The differential planetary gear system comprises at least two single planetary gear sets.

Abstract: A control system for a machine with a dual path electronically controlled hydrostatic transmission is used to achieve a desired performance and a desired operator feel while performing all of the machine operations. The control system includes pump and motor displacement resolvers, command resolver, ramping blocks, pump and motor steering resolvers, engine load management and a straight tracking subsystem.

Abstract: A selectively disconnectable and reconnectable harmonic drive assembly of a rotary actuator is provided. The drive assembly includes a harmonic wave generator configured to rotate and disconnect and reconnect a harmonic drive of the actuator by moving radially inward to allow the disconnect of a flex spline from a ring gear and radially outward to allow the reconnect of the flex spline to the ring gear. With respect to the disconnect, roller bearings and a disconnect spring are configured to push the wave generator axially when a solenoid is activated, allowing the roller bearings to move radially inward. This movement releases an outward force on the flex spline, disconnecting the flex spline from the ring gear. The solenoid is deactivated so that a ball-lock sleeve is forced axially by a ball-lock-sleeve-return spring, and ball bearings are forced radially into a groove in a locked “disconnect” position.

Abstract: A first shaft end of a hollow shaft of a hollow strain wave gearing is supported by a first support bearing with a collar interposed therebetween which is mounted to the outer-circumferential surface of the first shaft end. A second shaft end on the other end of the hollow shaft is supported by a second support bearing. A wave plug of a wave generator is integrally formed with the hollow shaft, and a wave bearing is mounted on the elliptical outer-circumferential surface thereof from the first-shaft-end side. It is possible to use a first support bearing having an inner diameter larger than the outer diameter of the first shaft end as the first support bearing for supporting the first shaft end.

Abstract: Provided is a pulley structure of a belt type electric power steering (EPS) gear, and more particularly, a pulley structure of a belt type EPS gear capable of providing good assemblability using an engineering plastic and a specific structure. The pulley structure of the belt type EPS gear includes an insert ring section coupled to a ball nut, a support section configured to support the insert ring section, a first flange section configured to prevent separation of a belt, a pulley having a driving section configured to receive a driving force of the belt, a support frame disposed at one side surface of the driving section and having a bent shape to have an internal space when coupled to the ball nut, and a second flange section disposed at one side surface of the support frame and configured to prevent separation of the belt.

Abstract: Continuously variable transmission with a drive belt (3) and with two pulleys (1, 2) that are each provided with two pulley discs (4, 5) with a running surface (8) for arriving in friction contact with a side face (35) of the drive belt (3), wherein both the running surfaces (8) of the pulleys (1, 2) and the side face (35) of the drive belt (3) are made of steel and wherein during operation of the transmission the friction contact is cooled by lubrication oil. At least one of the running surfaces (8) is provided with a multitude of (micron-scale) dimples (11, 13) and/or of grooves (12, 14, 15) arranged in a specific pattern for taking up lubrication oil.

Abstract: A vehicle according to the present disclosure includes a shift-by-wire transmission, a pressure source configured to selectively provide hydraulic pressure in the absence of engine power, an internal combustion engine, and a controller. The shift-by-wire transmission includes a hydraulic actuator, and the electric pump is in fluid communication with the actuator. The controller is configured to, in response to a driver input and the engine being off, control the pressure source to provide hydraulic pressure to the hydraulic actuator.

Abstract: A shift control method for a dual clutch transmission (DCT) vehicle may include determining whether power-on downshift is initiated, determining a progress degree of a shift process if the power-on downshift is initiated, determining a difference in the number of shift stages between a target shift stage and a current shift stage according to the determined progress degree of the shift process, and selecting and performing one of downshifts (e.g., other shaft full-skip power-on downshift, same shaft power-on downshift, and other shaft power-on downshift) according to the progress degree of the shift process and the shift stage number difference.

Abstract: A torque sharing rate is set as a constraint of a motion equation of an automatic transmission by using a gear shift model in which gear shift target values are set by two values of a torque on a rotating member on an output shaft side and a rotation speed variation of a rotating member on an input shaft side. In addition, a first gear shift according to the gear shift control and a second gear shift that uses a gear shift model in which the gear shift target value is set using only the velocity variation of the rotating member on the input shaft side to enable a speedier gear shift than the first gear shift are selectively executed.

Abstract: A shift control device for shift controlling an automatic transmission in a powertrain drivingly connecting a power source, a hydraulic transmission element, and an automatic transmission in the mentioned order, has a hydraulic transmission element required output calculator that calculates a required output to be output from the hydraulic transmission element to the automatic transmission based on the output of the power source obtained from the slip condition between the input and output elements of the hydraulic transmission element and a total efficiency of the hydraulic transmission element, and a hydraulic transmission element total efficiency calculator that calculates, for each output rotation speed of the hydraulic transmission element, a speed ratio and a torque ratio between the input and output elements of the hydraulic transmission element, each being required for achieving the calculated hydraulic transmission element required output.