Abstract: A damper disc assembly includes first and second input plates, an output unit, a high stiffness damper unit, and first and second low stiffness damper units. The output unit includes an input-side member and an output-side member disposed rotatably relative to each other. The high stiffness damper unit elastically couples the input-side member and the first and second input plates in a rotational direction and is actuated in a high torsion angular range of torsional characteristics. The first and second low stiffness damper units elastically couple the input-side member and the output-side member and are actuated in a low torsion angular range of the torsional characteristics. The second low stiffness damper unit is actuated later than actuation of the first low stiffness damper unit.

Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a seat portion, an overhang portion and a pair of clamping protrusions. The overhang portion extends in the circumferential direction from an outer diameter end of the seat portion and covers an outer diameter side of the coil spring. The clamping protrusions protrude from the seat portion and sandwich an attaching portion of the one of the rotating bodies. The clamping protrusions are relatively turnable in a radial direction of the rotating bodies. The clamping protrusions have a low-rigidity portion on an outer diameter direction side of the spring central axis and a high-rigidity portion on an inner diameter direction side of the spring central axis.

Abstract: A multi-plate clutch apparatus is provided and includes a multi-plate clutch disposed to occupy clutch and non-clutch positions at which rotation of an input shaft is and is not transmitted to an output shaft, respectively, a drive element disposed about the multi-plate clutch and configured to generate rotational energy and a linear actuator disposed to convert the rotational energy of the drive element to linear movement by which the multi-plate clutch is controllable to occupy one of the clutch and non-clutch positions.

Abstract: A clutch assembly configured to engage and disengage a first shaft from a second shaft includes a controlled and predetermined cooling flow to cool the clutch assembly. The clutch assembly includes a clutch housing, friction plates, and reaction plates optimized to manage fluid flow through the clutch assembly. A plurality of fluid flow outlets is provided to move fluid from an interior of a clutch housing of the clutch assembly to an exterior of the clutch housing.

Abstract: A lubrication and hydraulic actuation system for a transfer case (120) includes a pump (220), a pump sump (210) formed in the transfer case (120), and having an opening (430) in communication with an interior of the transfer case (120), and a fluid retention element (510, 710). The fluid retention element (510, 710) is disposed in the opening (430) of the pump sump (210) and has at least one baffle structure (550) to allow fluids to enter the pump sump (210) through the fluid retention element (510, 710) and restrain fluids from exiting the pump sump (210) through the fluid retention element (510, 710).

Abstract: A fluid friction clutch (1) including a housing (2, 3), a clutch plate (4) which is situated on an end (5) of a shaft (6) mounted centrally within the housing (2, 3), a working chamber (9) between the housing (2, 3) and the clutch plate (4), a supply chamber (10) for clutch fluid, and a supply channel (11A, 11B) which leads from the supply chamber (10) to the working chamber (9). A feed pump element (14) which is rotatable with respect to the housing (2, 3), is situated rotationally fixed on the shaft (6), and defines a shear gap (12) with the housing (2, 3). A valve (17) is situated between the feed pump element (14) and the supply chamber (10), the valve (17) in the closed position effectively establishing a main working path (HA) between the feed pump element (14) and the working chamber (9), and the valve (17) in an open position unblocking a discharge path (EP) between the feed pump element (14) and the supply chamber (10).

Abstract: Motorcycle and dirt bike centrifugal clutch assemblies that operate in automatic mode with manual override capability.

Abstract: A hydrodynamic machine comprising: a toroidal working chamber including a first bladed wheel and a second bladed wheel arranged concentrically with the first bladed wheel; and an electrohydraulic system including an open loop unit and a and closed loop control unit, a working medium accumulator, a pump operable to pump a working medium from the working medium accumulator into the toroidal working chamber, a heat exchanger, a valve operable to switch between a first position, the first position being a non-braking position, and a second position, the second position being a braking position, and a line system operable to allow the pump to pump the working medium in both the first position and the second position into the working chamber.

Abstract: A sliding caliper disk brake is provided, in which a stationary brake carrier configured to carry a brake caliper includes two pairs of carrier horns, one pair of which supports a reaction-side brake pad and one pair of which supports an application side brake pad. The spacing between the reaction-side pair of carrier horns is larger than the spacing between the application-side pair of carrier horns. The reaction-side brake pad and reaction-side pair of carrier horns may be shorter than the corresponding application-side brake pad and carrier horns. The arrangement of the brake carrier, the brake caliper and the brake pads permits reduction in disk brake weight, cost and brake carrier stresses while providing desired brake thermal, mechanical and service life performance.

Abstract: An electric brake device that allows reduction of generation of an operating noise without impairing a function of a brake, is provided. The electric brake device includes a brake rotor, a brake pad, an electric motor (2), a linear motion mechanism, and a controller (9). Vehicle speed detector (44) configured to detect a vehicle speed, is provided, and the controller (9) includes: a motor angular velocity control section (40) configured to control an angular velocity of the electric motor (2); and angular-velocity-corresponding-to-vehicle-speed limiting section (41) configured to limit, in a no-load state where a clearance is between the brake pad and the brake rotor, the angular velocity by the motor angular velocity control section (40) such that the lower the vehicle speed detected by the vehicle speed detector (44) is, the lower the angular velocity of the electric motor (2) in the no-load state is.

Abstract: In an opposed-piston disc brake caliper, a pair of reinforcement bridge portions, which are inclined relative to an axial direction, are provided on outside of a rotor in a radial direction of the rotor so as to define corner opening portions in an opening portion which is defined by an inner body portion, an outer body portion, and an entry-side connection portion and an exit-side connection portion connecting the inner body portion and the outer body portion. A torque receiving portion of one of the entry-side torque receiving portion and the exit-side torque receiving portion is exposed toward an outside in the radial direction via the corner opening portions.

Abstract: A bicycle lining wear indication system includes a lining and a display device. The lining includes a back pate, a friction portion and a detection device. The detection device includes a detecting unit, an operation unit and a transmitting unit. The detecting unit detects a wear state of the friction portion after the friction portion contacts and rubs the disk of a wheel to produce a friction coefficient characteristic. The operation unit proceeds an operation on the friction coefficient characteristic to convert the friction coefficient characteristic into a digital value. The transmitting unit transmits the digital value to the display device to remind a rider of a wear extent of the friction portion. Thus, the detection device monitors and detects the wear extent of the friction portion so that the rider can replace the lining when the friction portion is worn out.

Abstract: In a brake assembly for an air vent in a vehicle, comprising two brake components which are movable relative to each other, wherein on at least one brake component a friction lining is provided, which rubbingly rests against the respective other brake component and inhibits a mutual movement of the brake components, it is provided that the friction lining is made of a thermoplastic elastomer which contains a silicone admixture. A friction lining for such brake assembly is made of a thermoplastic elastomer which contains a silicone admixture.

Abstract: A spring, fatigue strength thereof is improved is provided. A spring 10 includes a steel layer 12 and a compound layer 14 provided on a surface of the steel layer and containing nitride. The compound layer 14 contains an ? phase, and a compressive residual stress of the ? phase is set to range from 800 to 1400 MPa.

Abstract: A centrifugal pendulum stop spring element for a centrifugal pendulum device (1) is provided, in particular a trapezoidal centrifugal pendulum device, of a drive train of a motor vehicle, the stop spring element (30) having a plurality of material layers (31) in a radial direction (Ra) of the stop spring element, and the material layers being coupled to each other in such a manner that the stop spring element is resilient in the radial direction thereof. A centrifugal pendulum device, a pendulum weight carrier and/or a pendulum weight of the centrifugal pendulum device having a centrifugal pendulum stop spring element is also provided.

Abstract: The invention relates to a coil spring connector for connecting in a force-transmitting manner a coil tension spring of a motor vehicle. It is proposed that a base part for outward transmission of the spring force of the coil tension spring and a sleeve-type adapter part for fitting between the base part and a coil spring interior are provided.

Abstract: Elastomer members for a torsional vibration damper, methods of making the same, and torsional vibration dampers having the elastomer members are disclosed. The elastomer members have a first major surface and an opposing second major surface with opposing side joining the first major surface to the second major surface, have a median sagittal plane extending parallel to the first major surface and the second major surface, and a transverse plane perpendicular to the median sagittal plane. In a cross-sectional geometry in a plane bisecting the median sagittal plane and the transverse plane, a thickness of the elastomer member changes along the median sagittal plane in a direction parallel to the transverse plane with a first thickness at both opposing sides and a second thickness at the transverse plane, where the second thickness is greater than the first thicknesses.

Abstract: A rubber-metal sleeve bearing includes an outer sleeve having a first outer edge and a second outer edge in opposing relationship to the first outer edge, when viewed in an axial direction. The first and second outer edges each have at least one section provided with radially inwardly recessed outer edge regions. An inner sleeve is disposed in concentric relation to the outer sleeve, and an intermediate sleeve is disposed concentrically between the outer and inner sleeves and connected to the outer sleeve via a first elastomer layer and to the inner sleeve via a second elastomer layer.

Abstract: The application relates to a brake arrangement for braking a flap of a motor vehicle, wherein a connecting element, which is rotatable in a braked manner about a brake axis, for releasing the braking force is provided. It is proposed that a housing accommodating the connecting element and having a first housing part and a second housing part is provided, and that the braking force is adjustable by means of an adjustment movement of the two housing parts with respect to each other.

Abstract: A shock absorber comprising a tubular first portion in the form of a shock absorber casing telescopically receiving a tubular second portion in the form of a piston is disclosed. The first portion has an alignment member which encapsulates a friction element wrapped around said second portion. The alignment member is longitudinally movable in between a first stop bearing and a second stop bearing. The novel friction element has a plurality of tips or protrusions which extend, parallel to the longitudinal direction of the piston, towards the two stop bearings and which hit either of said bearings during the oscillatory back and forth movement of the alignment member during operation.

Abstract: A monotube damper assembly includes a housing presenting a wall extending between a rod end and a closed end to define a main chamber. A gas cup having a top portion and a body portion is disposed in the main chamber to divide the main chamber of the housing into a gas chamber and a fluid chamber. The gas cup includes a top portion and a body portion. A piston is disposed in the fluid chamber. A rod guide is disposed adjacent to the rod end and spaced part from the piston. A piston rod is connected to the piston. A gas damper having a cylindrical shape includes a restrictor disposed the body portion of gas cup and the top potion of the gas cup for providing additional damping force to the gas cup.

Abstract: The damper assembly includes a tubular member, a rod, a primary piston, a secondary piston, and a resilient member. The tubular member includes a sidewall and a cap positioned at an end of the sidewall. The sidewall and the cap define an inner volume. The rod extends within the inner volume. The primary piston is positioned within the inner volume and coupled to the rod. The primary piston defines a first contact surface. The secondary piston includes a body member having a second contact surface, an opposing second surface, and an inner cylindrical face defining a central aperture that receives the rod. The secondary piston defines a channel extending from the inner cylindrical face to an outer periphery of the body member. The first contact surface and the channel are configured to cooperatively define a flow conduit upon engagement between the primary piston and the secondary piston.

Abstract: A system for securing a powertrain component to a body structure of a vehicle may include first and second mounts each having a base and a first elastomeric barrier secured to and extending from the base defining an air filled chamber, and a connector coupling the air filled chambers, the connector sized to provide an associated air volume that reduces stiffness of the first elastomeric barrier at an excitation frequency corresponding to a target engine speed. The air filled chambers may be hermetically sealed and pressurized above atmospheric pressure. The system may include a fluid-filled switchable mount having a decoupler air pocket selectively coupled to a vacuum source or atmosphere with an expander integrated with the mount or as a separate component coupled between the decoupler air pocket and the vacuum source. The expander may be implemented as a Helmholtz resonator or may include an in-line expansion chamber.

Abstract: An intermediate member of a damper device includes a plate portion that has spring abutment portions that abut against inner springs. Spring abutment portions of a coupling member of a dynamic damper extend from a fixed portion via a bent portion to be disposed in opening portions of the plate portion, and abut against end portions of third springs disposed in the opening portions such that the third springs are arranged side by side with the inner springs in the circumferential direction. The plate portion and the spring abutment portions at least partially overlap each other in the thickness direction. The axes of the inner springs and the third springs are included within the range of overlap between the plate portion and the spring abutment portions in the thickness direction.

Abstract: A mass damper system is provided with a damper mass carrier with at least one damper mass movable relative to the damper mass carrier and at least one stop. The damper mass moves within a predetermined movement region when a rotational movement of the damper mass carrier exceeds a predetermined limit speed. The predetermined movement region has a first movement region portion bounded at one end by an initial position in which the damper mass is free from a deflection in circumferential direction and by a limit position in which the damper mass has undergone a deflection, and a second movement region portion is defined at one end by the limit position and at the other end by a stop position in which the damper mass has come in contact with the stop.

Abstract: A mass damper system includes a damper mass carrier having movable damper mass and a stop. The damper mass moves within a predetermined movement region during an operating state. A first movement region portion bounded by an initial position in which the damper mass is free from a deflection in circumferential direction and by a limit position in which the damper mass has undergone a deflection, and a second movement region portion defined by the limit position and a stop position in which the damper mass has come in contact with the stop. At a side facing the stop, the damper mass has a proximity profile that correspond to a stop profile such that in the first movement region portion the damper mass remains within a residual distance region relative to the stop in one extension portion of the proximity profile.

Abstract: A portion of a flat belt B, which serves as a belt inner peripheral surface, is made of a rubber composition. The rubber composition contains nanofibers of an organic fiber having a fiber diameter of 300 to 1000 nm.

Abstract: The present invention relates to a toothed belt containing a plurality of tooth parts that are disposed at predetermined intervals along the longitudinal direction and contain a rubber composition (A) as a base material and a back side that has a cord embedded therein and contains a rubber composition (B) as a base material, in which the cord contains a Lang-twisted carbon fiber and is formed in a diameter of 1.1 mm or more and 2.5 mm or less and the rubber composition (B) constituting the back side has a hardness of from 80 degrees to 89 degrees in JIS-A hardness.

Abstract: A V-belt (B) includes a rubber composition forming a portion (11) to be V-shaped side faces (110). Organic nanofibers (16) and organic short fibers (17) are included in the rubber composition, and oriented along a belt width. In the rubber composition, a ratio of a storage modulus in a grain direction to a storage modulus in cross-grain direction is 5 or greater.

Abstract: A chain guide element having a first guide rail and a second guide rail which is spaced from the first guide rail to guide a moving chain therebetween. On each lateral side of the chain guide element connecting elements connect the two guide rails in spaced relationship to slidably receive a moving chain. First supporting elements are positioned on the laterally arranged connecting elements that connect the first and second guide rails, and second supporting elements are carried by a stationary component to cooperate with the first supporting elements so that the chain guide element is pivotable and is linearly movable relative to the second supporting elements.

Abstract: A torque cam device includes: a drive cam member; a driven cam member; and an intermediate cam member which includes a second drive cam surface that is formed on one end, and that is arranged to be abutted on the first drive cam surface, a second driven cam surface that is formed on the other end, and that is arranged to be abutted on the first driven cam surface, and which is arranged to be rotated relative to the driven cam member and the driven cam member, the first and second drive cam surfaces being abutted on each other when a power is transmitted from the drive cam member to the driven cam member, the first and second driven cam surfaces being abutted on each other when the power is transmitted from the driven cam member to the drive cam member.

Abstract: The connector system (30) includes a pivoting member (38) pivotally attached to a guide anchor (36) that is moveable secured within a guide track (34). The guide anchor (36) is movably secured between first and second strength walls (58, 62). At least one guide shoulder (70) and the pivoting member (38) define throughbores (74, 76, 78) that receive a rod (92) of a rod-and-bracket connector (88) to pivotally secure the pivoting Member (38), such as a convergent flap (26) of an exhaust NOZZLE assembly (22). The rod-and-bracket connector (88) utilizes an L-shaped arm (56) to eliminate need for a large thread and lock nut assembly (86) between the strength walls (58, 62) to thereby facilitate use of larger, stronger guide shoulders (70, 72) between the strength walls (58, 62) to maximize strength of the connector system (30) while minimizing its volumetric displacement.

Abstract: There is provided an actuator capable of downsizing the actuator in axial and radial directions of a motor. The actuator includes a motor having an output shaft, a motor housing into which the motor is housed, an outer race, an inner race assembled with the outer race to be rotatable, a cross-roller bearing supporting an object to be rotatable so that the object member is constituted to be rotatable, wherein the outer race is mounted to the motor housing, the inner race is clamped by a support member rotating in accordance with the rotation of the output shaft and the object member fixed to the support member.

Abstract: A structure for securing a transmission stator shaft is provided in which a stator shaft flange that is integral with a stator shaft supported on an outer periphery of an input shaft via a bearing is fitted into a recess portion formed in a side face of a casing and positioned in a radial direction, and is positioned in an axial direction by a lid member that is secured to the side face by a bolt. Thus, even if the meshing reaction force in the radial direction received by a gear supported on the input shaft is transmitted to the stator shaft flange via the bearing and the stator shaft, the load is supported by the recess portion of the casing so as not to be transmitted to the bolt, thereby preventing loose of the bolt and suppressing rattling of the stator shaft flange.

Abstract: An automatic transmission for an electric vehicle includes: a belt type continuously variable transmission mechanism; a constantly meshed parallel shaft type gear transmission mechanism which is connected to an output portion of the belt type continuously variable transmission mechanism, and which has a plurality of shift stages; an input gear which is disposed to the input shaft to be rotated relative to the input shaft, and which is drivingly connected to one of a plurality of shift gears fixed to an output side shaft of the constantly meshed parallel shaft type gear transmission mechanism; and an engaging clutch mechanism which is disposed to the input shaft, and which selectively connects one of the input portion of the belt type continuously variable transmission mechanism and the input gear to the main electric motor.

Abstract: An electric drive module for transferring torque to wheels of a motor vehicle a planetary gearset having a first member driven by the rotor and a second member. A synchronizer restricts a third member of the planetary gearset from rotation when the electric drive module operates at a first drive ratio. The synchronizer transfers energy from the rotating rotor to the third member during a shift between the first drive ratio and a second drive ratio to match the rotational speeds of the rotor and the second member. A reduction unit includes an input member being driven by the second member and also includes an output member driven at a reduced speed relative to the input member. A differential assembly includes an input driven by the output member, a first differential output driving a first output shaft, and a second differential output driving a second output shaft.

Abstract: A hydraulic transmission comprising a variable displacement pump and motor, at least one having cylinders having valves which are controllable on each cycle of cylinder working volume to determine the net displacement of working fluid by the cylinder. The transmission has a valve control module which determines a displacement of the pump and the motor by specifying a displacement demand. The pump and/or motor valve control module determine the frequency of intensity peaks in the frequency spectrum of the pattern of cylinders carrying out active and inactive cycles of cylinder working volume using a first procedure and, if these will fall within disallowed frequency bands including the resonant frequency of components with which the transmission is in mechanical communication, the displacement demand, or another input, is periodically modified to suppress generation of those frequencies. The hydraulic transmission is useful for example in a wind turbine generator, or a vehicle.

Abstract: A mounting system for a differential comprises a cross shaft. The cross shaft comprises a passageway through the cross shaft perpendicular to a long axis. The passageway comprises a first hole and a second hole. A recess comprising a planar wall is proximal to the first hole. A first stub shaft comprises a planar surface in contact with the planar wall. A second stub shaft is proximal the second hole. A yoke in the passageway comprises a first portion extending in to the first stub shaft and a second portion extending in to the second stub shaft. A first bang ring is on the first portion of the yoke, and a second bang ring is on the second portion of the yoke. The yoke slip fits to the first stub shaft and the yoke slip fits to the second stub shaft.

Abstract: A vehicle driveline component having a dual friction clutch differential assembly and a hydraulic circuit for operating the friction clutches. The hydraulic circuit includes a pair of normally open, solenoid operated valves that are selectively closed to control the fluid pressure that acts on the friction clutches. The hydraulic circuit provides a simplified and cost-effective means for providing disconnecting and/or torque vectoring capabilities to the vehicle driveline component.

Abstract: A complex cast component of an internal combustion engine, in particular a crankshaft or a camshaft, has a longitudinal axis, a plurality of regions, along the longitudinal axis, and a first cavity. Each of the plurality of regions has a certain cool-down rate during a solidification process of a casting process. The first cavity is arranged in a first region of the plurality of regions and has a volume that depends on a first cool-down rate of the first region. In this way, a material thickness in the first region likewise depends on the first cool-down rate.

Abstract: A cam follower (configured to be driven by a cam) includes a tappet, a radial bore inside which a shaft is mounted, and a roller that is rotatably mounted around the shaft for providing a rolling contact with the cam. At least one of the inner bore and a radial surface of the shaft is coated with at least one of an anti-friction and a wear resistance coating layer. The coating layer includes polyetheretherketone.

Abstract: A bicycle chainring for engaging a bicycle drive chain has a plurality of teeth formed around its periphery. The plurality of teeth includes a first group of teeth, and a second group of teeth. The teeth of the second group are arranged alternatingly between the teeth of the first group. A portion of each tooth of the first group extends outwardly on a first lateral side of the chainring, and a portion of each tooth of the second group extends outwardly on the second lateral side of the chainring. Thus, each tooth is arranged in a laterally staggered position relative to its neighboring teeth. A bicycle chain drive employs the chainring. This construction of the chain drive and chainring offer the retention advantages of Narrow-Wide chainrings, but also allow the chain to engage with the chainring at multiple orientations.

Abstract: A transmission comprising at least a first shaft and at least a second shaft parallel thereto, comprising a first gear wheel and a second gear wheel arranged on the first and second shafts, respectively, the first gear wheel of said first shaft and the second gear of the second shaft arranged as a gear wheel pair and meshing with each other, wherein the first gear wheel of the gear wheel pair is non-rotatably fixed to the first shaft and the second gear wheel of the gear wheel pair is rotatably arranged on the second shaft, an axially displaceable shifting collar for fixing the second gear wheel against rotation relative to the second shaft, an axially displaceable selector fork for actuating the shifting collar and, a damping element arranged on the selector fork and is able to engage a transmission element.

Abstract: A planetary gear device includes: a sun gear; a plurality of planet gears that mesh with the sun gear; and a baffle unit disposed in a circumferential gap between the adjacent planet gears. The baffle unit includes: a first introduction opening portion open in a radially inward direction to introduce lubricating oil, which has lubricated the sun gear and the planet gears, into the baffle unit; an end wall forming one end in an axial direction of the first introduction opening portion; a discharge opening portion to discharge lubricating oil in the baffle unit; and a guide portion disposed at a side portion of the baffle unit on a rear side in rotation direction of the sun gear, and configured to cover the first introduction opening portion in the circumferential direction and to guide the lubricating oil to an outer circumference of the adjacent planet gears.

Abstract: A pumping device for pumping oil from a reservoir to a transmission of a motor vehicle includes: an oil pump, selectively drivable either by a mechanical direct drive or an activatable electric drive. The oil pump has: first and second components, the first and second components being movable relative to one another and being configured to deliver the oil, the mechanical direct drive being connected to one of the first and second components, and the activatable electric drive being connected to the other of the first and second components; a pump stage housing, in which the first and second components are arranged, the pump stage housing having two control disks and an interposed ring; and a pot-shaped component in which the pump stage housing is arranged.

Abstract: An axle assembly having a differential gear set is provided. The axle assembly includes a housing having an interior portion sized to receive the differential gear set. At least one axle tube extends from a side of the housing. At least one axle is coupled to the differential gear set and extending through the at least one axle tube. A lubrication control member is coupled between the axle and the housing, the lubrication control member having at least one orifice, the orifice defining a lubrication flow path between the interior portion and the at least axle tube.

Abstract: The invention relates to a transmission drive device (10) comprising a shaft (14; 14a) which is arranged in a housing (12) in a longitudinally movable manner in the direction of the shaft axis (26) and comprising a shaft end (15; 15a) which is formed on an end face and which is supported at least indirectly on the housing (12) via at least one starting element (30). Either the shaft end (15) or the starting element (30) has a rounded design at least in some regions, a bearing point (31) being formed between the starting element (30) and the shaft end (15; 15a), and the starting element (30) being coupled to a damping element (32; 32a to 32d) which allows a movement of the starting element (30) in the event of an axial application of force (FA, FA1, FA2) by means of the shaft (14; 14a).

Abstract: The invention relates to a gearshifting device (1), which is intended for a transmission and comprises a selector lever (2) that can be moved in such a manner that different shift positions (P, R, N, D, S, M+, M?) can be selected in at least two gearshift gates (3, 4) and that it is possible to shift between one of the gearshift gates (3, 4) and the at least one other gearshift gate (4, 3), and comprises at least one lock (5), which is used to block the traversing path of the selector lever (2) with respect to one of the gearshift gates (3, 4), in order to shift from one of the shift positions (P, R, N, D, S) into another of the shift positions (P, R, N, D, S).

Abstract: Oil pressure controller for an automatic transmission produces a pre-charge shelf pressure supplied to a starter clutch by rapidly decreasing a command hydraulic pressure to the starter clutch after temporarily rapidly increasing the command hydraulic pressure, also produces a capacity adjustment pressure (Pb1 or Pb2) of the starter clutch by gradually increasing the hydraulic pressure from a decrease point of the pre-charge shelf pressure (Pa), when a selecting operation is made from N-range to D-range. By changing capacity adjustment pressure (Pb1 or Pb2) according to brake-operating/nonoperating state, capacity adjustment pressure (Pb1) in the brake-nonoperating state is set to be higher than capacity adjustment pressure (Pb2) in the brake-operating state by an offset hydraulic pressure amount. With this, when the selecting operation is made from N-range to D-range, in the brake-operating state, selection shock of the starter clutch can be reduced.

Abstract: An energy storage and recovery system device for a vehicle, comprising a flywheel, a first and a second set of gears, and multiple wet multi-plate clutches, wherein one of each gear set is arranged coaxially along a clutch shaft with one of the clutches, and wherein the device is coupled to the vehicle transmission, such that actuation of a clutch redirected the torque path via the gears, thereby enabling multiple ratios and therefore multiple speeds.