WO2006045224A1 - Continuously variable automatic transmission - Google Patents
Continuously variable automatic transmission Download PDFInfo
- Publication number
- WO2006045224A1 WO2006045224A1 PCT/CN2004/001239 CN2004001239W WO2006045224A1 WO 2006045224 A1 WO2006045224 A1 WO 2006045224A1 CN 2004001239 W CN2004001239 W CN 2004001239W WO 2006045224 A1 WO2006045224 A1 WO 2006045224A1
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- WO
- WIPO (PCT)
- Prior art keywords
- clutch
- way clutch
- shaft
- bracket
- friction plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
- F16H33/04—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought
- F16H33/08—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia
- F16H33/14—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses
- F16H33/18—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses of which the motion is constrained
- F16H33/185—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses of which the motion is constrained the masses being fixed to the orbital members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/74—Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces
Definitions
- the present invention relates to a continuously variable transmission, and more particularly to a transmission for stepless automatic shifting applied to a vehicle.
- the application of the stepless automatic transmission on the vehicle causes the driving of the vehicle to change from manual to automatic.
- the automatic steam is more and more popular among J car owners because of its convenient operation, smooth speed and high driving safety.
- a hydraulic automatic transmission and a metal belt type continuously variable automatic transmission.
- the hydraulic automatic transmission includes two types of hydraulic couplers and torque converters.
- the basic principle of the hydraulic clutch is:
- the power source drives the pump wheel to rotate, and the pump wheel drives the liquid rotation between the blades to transfer the energy of the power source to the liquid, so that the kinetic energy of the liquid increases; when the kinetic energy obtains the increased liquid
- the turbine is between the blades, part of the kinetic energy of the liquid is transmitted to the turbine that is slower than the pump wheel, causing the turbine to output torque.
- a one-way rotating guide wheel is added between the pump impeller and the turbine ii of the hydrodynamic coupling to form a torque converter.
- the hydraulic transmission can make up for some of the deficiencies of the mechanical step-variable transmission, it has a prominent advantage, such as: simple operation and labor saving, improving the safety, comfort and over-acceleration of the vehicle; reducing harmful emissions of the vehicle, It meets environmental protection requirements; the power source and the drive train are flexibly connected to extend the service life; the self-adaptation is improved, and the vehicle's adaptability to various road surfaces is improved.
- the shortcomings are also very obvious:
- CN1136108 (National Invention Patent, issued by the State Intellectual Property Office of China on January 28, 2004, discloses a hydraulic automatic transmission transmission system including a torque converter for achieving fluid connection between the engine and the transmission. a primary shifting portion disposed on the first shaft; a secondary shifting portion disposed on the second shaft; a power transmitting device that transmits the primary shifting portion rotational power to the secondary shifting portion (by four power transmitting gears) a first, a second, a third brake and a clutch for controlling the primary shifting portion and the secondary shifting portion, and first and second one-way clutches, wherein the torque converter is provided by the pump wheel, the turbine, and the pump wheel
- the guide wheel composition with the turbine, the pump wheel, the turbine and the introduction constitute a torque converter.
- the working principle of the metal belt type stepless automatic transmission is as follows:
- the power output from the power source is transmitted to the active working wheel of the continuously variable transmission, and the active working wheel transmits the movement to the driven through the V-shaped metal transmission belt:
- Power is transmitted to the wheels via the intermediate reducer, the final drive and the differential.
- metal ''belt transmission is the core part of this transmission ⁇ , 3 ⁇ 4 tongue active working wheel, driven working wheel and V-shaped metal belt connecting main and driven working wheels, 'following work It consists of a coaxially mounted fixed cone disk and a moving cone disk.
- the fixed cone disk and the moving cone disk form a V-shaped groove that meshes with the V-shaped metal band, and the V-shaped metal band acts on the pressing force of the fixed disk and the moving cone disk.
- Under the power when the moving cone of the main and driven working wheels moves axially, the radius of the metal transmission belt changes, thereby changing the transmission ratio.
- the axial movement of the moving cone is achieved by adjusting the hydraulic oil in the cylinders of the main and driven working wheels.
- the cylinders of the main and driven working wheels are controlled by the one-liquid or electric-liquid control system respectively. Since the adjustment of the oil pressure is continuous, the transmission can also achieve stepless speed change.
- the metal belt type stepless automatic transmission has the advantages of good power, convenient operation, high transmission efficiency, and the power source can always operate in its economic speed range, thereby greatly improving the fuel economy and improving the exhaust gas emission. But still have the following insurmountable shortcomings:
- the starting performance is poor. If you want to increase the throttle suddenly to increase the speed, the transmission cannot be moved quickly because it takes time to change the diameter of the working wheel. In addition, since the starting torque of the vehicle is relatively large, the system must be equipped with a starting device such as a wet multi-plate clutch, an electromagnetic clutch and a torque converter, etc., so that the structure of the transmission becomes very complicated.
- a starting device such as a wet multi-plate clutch, an electromagnetic clutch and a torque converter, etc.
- the metal belt is difficult to manufacture and the production cost is high. Because special equipment is needed, the equipment replacement is huge.
- US Patent No. 6,602,096 discloses a swinging back and forth using a rocker arm.
- variable speed 3 ⁇ 4 tube can overcome some of the shortcomings of the above two types of transmissions, ⁇ Dependent many defects.
- the one-way clutch at the output end is a line contact and radial locking wedge clutch.
- the one-way clutch of this structure is not only sensitive due to the centrifugal force of the wedge, but also requires a large torque when unlocking. It consumes more energy, thus reducing the transmission efficiency of the transmission.
- the clutch since the wedges are in line contact with the inner and outer rings, the clutch has poor wear resistance, cannot transmit large torque, and has a short service life. The service life of the entire shifting device.
- U.S. Patent No. 6,047, 718 is a continuation-in-part patent of US Pat. No. 6,602,096, which adds a scheme to the original patent, and the added scheme and other schemes are substantially similar.
- the rocker arm mechanism of the added scheme is basically unchanged, and two one-way clutches with opposite locking directions are still provided on the sleeve directly connected to the rocker arm, only one of the one-way clutches is installed between the rocker arm sleeve and the base frame.
- the one-way clutch restricts the swinging of the rocker arm in the direction, so that the rocker arm can only swing intermittently in the other direction;
- This kind of shifting cliff not only still has the above-mentioned shortcomings, but also makes the working condition of the one-way bird combiner between the rocking street and the basic frame even worse, because the basic frame is fixed fe, the one-way clutch has to bear a large The load restricts the rocker arm from swinging in one direction, so that the wedge of the clutch is tightly wedged in the rocker arm sleeve and the corresponding frame hole, which makes it more difficult to unlock, consumes more energy, and wears more severely, which is serious. Affect life.
- the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide a mechanical stepless automatic shifting transmission device, which can automatically adjust the output speed and torque according to the size of the load, and is well realized.
- the function of stepless automatic shifting; the structure is simple, the transmission efficiency is high, the service life is long, and it will adapt to the high-speed rotating working condition, which can effectively spread the big
- a mechanical stepless automatic shifting transmission device includes a torque converter mechanism in which a housing port is mounted in the housing, the torque converter mechanism including an input portion and a rotatable white branch And at least one set of eccentric structural components and an output portion rotatably mounted on the bracket; the input portion and the bracket are independently rotatable, and the axes of rotation of the two are coincident; each set of the eccentric structural components Including an eccentric mass, the eccentric mass is driven to rotate about its own axis by the input portion; the output portion is provided only with a one-way clutch directly connected thereto, and the one-way clutch is a first one-way clutch The first one-way clutch is an axially-pressed surface-contact one-way clutch, and an active portion and a driven portion thereof are axially arranged, and a joint surface of the engaging elements of the main and driven portions is tight when locked Fit together and transmit torque through the friction between each other.
- the mechanical stepless automatic shifting transmission provided in accordance with the present invention also has the following subsidiary technical features:
- the shifting device further includes a second one-way clutch at a front end of the torque converter mechanism, and an input portion of the second one-way clutch is connected to the power source, and the output portion and the change The input part of the moment mechanism is connected.
- the apparatus further comprising a transmission provided on the first, one end of the one-way clutch; Lan second one-way clutch, and the third one-way clutch of sleep; one-way clutch The locking direction is opposite, the movable portion is coupled to the output portion of the first one-way clutch, and the stationary portion is fixed in the excess housing.
- the torque converter mechanism includes a bracket and two sets of the eccentric structural components symmetrically mounted at two ends of the bracket; each set of the eccentric structural components includes a driven shaft and An eccentric mass and a driven gear mounted on the driven shaft, the eccentric mass and the driven gear being hinged to an end of the bracket by the driven shaft;
- the input portion of the moment mechanism includes a drive shaft and a drive gear mounted on the drive, the drive shaft is coupled to a power source or a second one-way clutch, and the drive gear meshes with the driven gear;
- the output portion is an output shaft fixed to a center of the bracket, and an active portion of the first one-way clutch is coupled to the output shaft.
- the torque converter mechanism includes a bracket and three sets of the eccentric structural members mounted on the bracket and uniformly distributed in the circumferential direction;
- Each set of the eccentric structure assembly includes a driven shaft and a eccentric mass and a driven gear mounted on the driven shaft;
- the bracket is a disc-shaped body, and the eccentric mass and the cymbal are driven
- the gear shaft is connected to the edge of the bracket by the driven shaft;
- the ir portion of the torque converter mechanism includes a driving shaft and a driving gear mounted on the driving shaft, the driving shaft and the moving force source Or a second one-way clutch is connected, the driving gear meshes with the driven gear;
- the output portion is an output shaft fixed to a center of the bracket, the first one-way clutch fit? active portion and the output shaft connection.
- the first one-way clutch is a helically-tight one-way clutch, including a clutch drum and a first, a second clutch disc disposed in parallel with each other in the clutch drum. At least one drum friction plate and at least one spring; the first and second clutch discs clamp the drum friction plate under the action of the spring, and the drum friction plate is sleeved on a sleeve _t, And the clutch drum is coupled to the torque shaft 31; the sleeve has an internal thread, a transmission shaft extends into the sleeve, and the projecting end thereof is formed with an external thread that cooperates with the internal thread .
- a plurality of the drum friction plates are provided, and each adjacent one is difficult: a friction film is sandwiched between the drum friction plates; the disk friction plate is sleeved on the sleeve and The rotation of the clutch drum, the first and second clutch discs, the drum friction plate, the sleeve and the disc friction plate coincide; the drum friction plate and the clutch pass A spline coupling, the disc rocker and the sleeve are also coupled by a spline.
- One end of the clutch drum is open, and the other end is formed with an outwardly extending hollow shaft; the first clutch disc
- the second clutch disc Fixed to the transmission shaft and mounted to the mouth of the clutch drum by means of a first elastic snap ring; the second clutch disc is integrally formed with the sleeve and mounted on the second elastic snap ring On the transmission axis. Only one spring is disposed in the clutch drum, and the spring is a set of f-shaped compression springs on the transmission shaft, and is disposed between the second elastic snap ring and the second clutch disc.
- the projecting end of the transmission shaft is supported in the hollow shaft by means of a bearing.
- the first one-way clutch is a one-way clutch that is pressed by a four-bar mechanism, and includes a casing composed of a clutch disc and a clutch cover that are closed to each other.
- Body, a clutch hub, a plurality of hub friction plates, at least one set of disks are disposed in the housing a friction plate and at least one set of four-bar linkages: a tightening mechanism; a middle portion of the clutch cover is formed with a passage L, one end of the clutch hub is exposed from the through hole; the hub friction plate is annular, and Nested on the clutch hub and coupled to the torque transferable; the disc friction plate and the four-link pressing mechanism have the same number of sets, each set of the disk friction plate comprises a plurality of parts An annular friction plate disposed between the hub friction plates; each of the four-link pressing mechanisms has a cross bar, and each set of the disk friction plates has a through hole at the same position of each of the disks a crossbar passes through the through hole; the
- each of the four-link pressing mechanisms includes two supporting arms parallel to each other and the cross bar connecting the two supporting walls; one ends of the two supporting arms are respectively hinged by a coupling pin
- the other end of the housing is hinged with a connecting block, and the two ends of the crossbar are fixed respectively.
- the two connecting blocks are respectively provided with a spring at one end and a pressure at the other end.
- the block, the listening block is hinged to the coupling pin.
- Each set of disc friction soil is further provided with two through holes, and the two cylindrical pins respectively pass through the two through holes, V: and the respective J friction plates are connected in series to form correspondingly on the clutch disc and the clutch cover.
- the hub friction plate and the clutch hub are coupled by a spline; a center of the clutch disc is mounted with a transmission shaft, one end of the transmission shaft extends outwardly, and one end is supported by the clutch hub by bearings Inside the center hole.
- the casing is provided with three sets of four-bar linkage pressing mechanisms, and the casing is correspondingly provided with three sets of the disk friction plates, and the three sets of four-link pressing devices and the disk friction plates are circumferentially The direction is evenly distributed.
- the transmission device of the invention not only has high transmission efficiency, but also can effectively transmit high power and high torque power. Since the eccentric mass is used as the medium for energy transfer, this is essentially different from the flow as the energy transfer medium, so that not only the transmission efficiency is high, but also the power of the high-power and high-torque can be effectively delivered, which can be applied to medium and small.
- the displacement car can also be applied to heavy-duty vehicles with large displacement and wide application range. This is unmatched by hydraulic automatic transmissions and metal belt type stepless automatic transmissions.
- the structure and working conditions of the torque converter mechanism of the transmission device of the present invention tend to be rationalized.
- the one-way clutch of the transmission device of the invention has only one one-way clutch directly connected thereto, which can realize one-way output of torque and rotation speed, and the bracket of the torque converter mechanism must be oscillated back and forth to provide two one-way clutches at the output end of the bracket and Reversing mechanism. In this way, not only the working condition of the torque converter bracket is improved, but also the function of the stepless automatic shifting is better realized; and the inertia force of the bracket of the torque converter mechanism is greatly reduced, and the intensity fog of each member is greatly reduced.
- the transmission device of the present invention can be adapted to a high speed: engine with a rotational speed of up to 6000 rpm.
- Transmission of the present invention ⁇ s larger than the torque converter. Fa higher transmission efficiency
- the kinetic energy stored in the heart structure component can not be transmitted back to the engine, so that it can be transmitted to the load more, thus making it possible
- the entire transmission has a higher torque ratio, higher transmission efficiency and a more compact structure.
- the one-way clutch with axial contact pressure is adopted.
- This one-way clutch is not only sensitive, but also meets the needs of high-speed operation of the engine, and can transmit large losses, high transmission efficiency and long service life. . Therefore, the performance of the entire transmission is stable and reliable, the failure rate is low, and the service life is long.
- FIG. 1A is a schematic structural view of an automobile drive system, showing a general installation position of the continuously variable automatic transmission according to the present invention
- Figure IB is a perspective view of a mechanical structure of an automatic transmission according to the present invention
- Figure 2 is a schematic view of a basic structure of a preferred embodiment of the present invention
- FIG. 3 is a schematic view showing the basic structure of another preferred embodiment of the present invention, and the second one-way clutch is energized P1 based on the preferred embodiment of FIG. 2;
- FIG. 4 is a schematic diagram of a basic structure of still another preferred embodiment of the present invention, and a third one-way clutch is added to the preferred embodiment of FIG. 2;
- Figure 5 is a schematic view showing the basic structure of still another preferred embodiment of the present invention, and a third one-way clutch is added to the preferred embodiment of Figure 3;
- FIGS. 6A is a perspective view of a torque converter mechanism of the embodiment shown in FIGS. 2 to 5, the torque converter having two sets of eccentric structural components;
- FIG. 6B is an exploded perspective view of the torque converter mechanism shown in FIG. 6A, showing the specific structure and installation manner of each of the zero parts;
- Figure 6C is an alternative form of the torque converter shown in Figure 6A;
- FIG. 6D is an exploded perspective view of the torque converter mechanism shown in FIG. 6C, showing the various parts f «spoon, body structure and installation manner;
- FIGS. 7A is a perspective view of another torque converter mechanism in the embodiment shown in FIGS. 2 to 5, the variable height machine ⁇ having three sets of eccentric structural components;
- Fig. 7B is an exploded perspective view of the torque converter mechanism shown in Fig. 7A, showing the specific structure and installation manner of each of the zero parts;
- Figure 7C is an alternative form of the torque converter shown in Figure 7A;
- FIG. 7D is an exploded perspective view of the torque converter mechanism shown in FIG. 7C, showing the specific structure and installation manner of each of the zero parts;
- Figure 8A is a perspective cross-sectional view showing a structural form of the first and second one-way clutches in the embodiment shown in Figures 2 to 5;
- Figure 8B is an exploded perspective view of the one-way clutch of Figure 8A;
- Figure 8C includes four diagrams which collectively illustrate the operation of the one-way clutch of Figure 8A;
- 8D is a view showing the overall mechanical structure of the transmission device of the present invention when both the first and second one-way clutches are used with the one-way clutch shown in FIGS. 8A and 8B;
- Figure 9A is a cross-sectional view showing another configuration of the first and second one-way clutches in the embodiment shown in Figures 2 to 5;
- Figure 9B is an exploded perspective view of the one-way clutch of Figure 9A;
- FIG. 9C is a schematic view showing the working principle of the one-way clutch shown in FIG. 9A;
- 9D is a view showing the overall mechanical structure of the transmission device of the present invention when both the first and second one-way clutches are used with the one-way clutch shown in FIGS. 9A and 9B;
- Figure 10A is a schematic view showing an operation state of the continuously variable transmission according to the present invention, in which the first one-way clutch is in a locked state;
- Fig. 10B is a view showing another operational state of the continuously variable transmission according to the present invention.
- Fig. 10 is a state in which the one-way clutch is in an overrun state.
- the power source 100 is the engine, electric fL or other prime mover, for the convenience of explanation V, .:
- the invention uses an engine as a power source.
- the transmission device 2Q0 is installed between the power source 100 and the load 300, and the power outputted by the power source 100 is torqued by the transmission device 200, and transmitted to the wheel 300 to be rotated after being shifted, thereby driving the vehicle forward or backward.
- the present invention provides an improvement to the transmission 200 therein.
- a mechanical stepless automatic transmission transmission device 200 includes a housing 8 and a torque converter mechanism 1 mounted in the housing 8, as shown in FIG.
- the torque converter mechanism 1 includes an input portion 11, a rotatable bracket 12, rotatably mounted at least one set of eccentric structural components 13 (two sets shown) and an output portion 14 on the bracket 12.
- the input portion 11 and the bracket 12 are independently rotatable, and the axes of rotation of the two are coincident; each set of the eccentric structure assembly 13 includes an eccentric mass 131, the eccentricity and mass The 131 is driven to rotate about its own axis by the input portion 11, the specific structure of which is described below.
- the transduction tB portion 14 is provided with only one-way clutch 2 directly connected thereto, and the torque converted by the torque-changing mechanism 1 and the variable-speed power can output the rotational speed in one direction through one of the one-way clutches 2. Therefore, the structure is simple, the assembly is convenient, and the production cost is reduced.
- the one-way clutch 2 is a first one-way clutch; as shown in FIG. 2, the first one-way clutch 2 is a face-contact one-way clutch that is pressed by the front, and the active portion 21 and the driven portion thereof
- the engaging elements 23, 24 of the 22 are arranged axially, the engaging faces of the engaging elements 23, 24 being tightly fitted together and transmitting a torque by friction between them.
- the output shaft 25 of the one-way clutch 2 is connected to the load 300 either directly or through an auxiliary device 7 described below to transmit torque to the load 300.
- the transmission device 200 further includes a second one-way clutch 3 located at the front end of the torque converter mechanism 1, and the second one-way clutch 3 is outputted.
- Part 3:1 is connected to the source 1Q0, the output part 32 and the torque converter mechanism
- the locking direction of the first clutch 3 and the forward direction of the engine are as follows:
- the locking direction of the one-way clutch 2 is the same. Due to the presence of the second one-way clutch 3, the power of the engine can be unidirectionally imparted to the torque converter 1 even if the rotational speed of the input portion 11 of the return torque mechanism 1 is higher than the engine speed due to the second
- the one-way clutch 3 rotates in the opposite direction, it is in an overrun state, so that the reverse direction torque is not reversely transmitted to the engine, so that the energy stored on the eccentric structure assembly 13 can be more transmitted to the first one-way clutch 2, so that the present invention
- the transmission can obtain a large torque ratio, and there is no power cycle phenomenon that causes the transmission efficiency to drop.
- the transmission 200 further includes a third one-way clutch 4 disposed at the rear end of the first one-way clutch 2, the third one-way clutch 4, opposite to the locking direction of the first one-way clutch 2, the movable portion thereof is coupled to the driven portion 22 of the first one-way clutch 2, and the stationary portion is fixed in the housing 8.
- the third lifting clutch 4 adopts a ball-type or wedge-type one-way clutch in the prior art.
- the third one-way clutch 4 does not limit the movement state of the bracket 12, for example, when the vehicle is in the forward gear and is stopped on the uphill road, even if Without pulling the hand to kill 1", due to the restriction of the one-way clutch, the vehicle will not go backwards, which greatly facilitates the driver's operation.
- This is in contrast to the one-way clutch disposed between the rocker sleeve and the base frame in U.S. Patent No. 6,014,417, which is incorporated herein by reference.
- the torque converter mechanism 1 is the structure shown in FIGS. 6A and 6B, and includes a bracket 12 and symmetrically mounted on both ends of the bracket 12.
- the eccentric mass 131 and the driven gear 133 are hinged to the end of the bracket 12 by means of the driven shaft 132.
- the longitudinal section of the bracket 12 is H-shaped, the driven shaft 132 passes through the two side walls of the bracket 12, and the driven shaft 132 has the driven shaft fixed at one end thereof.
- the wheel 133 is fixed at the other end by a snap ring 37; a pad is provided between the snap ring 137 and the driven gear 133 and the side walls of the bracket 12: a piece: 135 ⁇ thereby reducing the wear of the bracket 12.
- the eccentric mass 131 is sandwiched between the two side walls of the bracket 12, which is not only convenient for axial positioning, but also safer and more reliable.
- the input portion 11 of the torque converter 1 includes a drive shaft 111 and a drive gear 112 mounted on the drive shaft 111.
- the drive shaft 111 is coupled to an output shaft of the engine. (the embodiment shown in Figs. 2 and 4), or connected to the output portion of the second one-way clutch 3 (the embodiment shown in Figs. 3 and 5); the driving gear 112 meshes with the driven wheel 133;
- the output portion 14 is an output shaft fixed to the center of the bracket 12, and the active portion 21 of the first one-way clutch 2 is coupled to the output shaft 14.
- the eccentric mass 131 is coupled to the driven shaft 132 by a key 136.
- the eccentric mass 131 is aligned with the driven shaft 132.
- the circumference rotates, thereby generating a centrifugal force that drives the rotation of the bracket 12.
- the eccentric mass 131 generates & scoops away, and the force drives the bracket 12 to rotate.
- 6C and 6D show an alternative version of this embodiment.
- the bracket 12 has a flat shape, and the structure is simpler and less complicated than the foregoing structure.
- the weight of the torque converter mechanism 1 or the entire shifting device 200 is simpler and less complicated than the foregoing structure.
- the torque converter mechanism 1 is the structure shown in FIGS. 7A and 7B, including a bracket 12 and mounted on the bracket 12, and Three sets of the eccentric structural components 13 are circumferentially distributed; each set of the eccentric structural components 13 includes a driven shaft 132 and an eccentric mass 131 and a slave mounted on the driven shaft 132
- the movable gear 133 as shown in the figure, the bracket 12 is a disk-shaped body, and the eccentric mass 131 and the driven gear 133 are hinged to the edge of the returned bracket 12 by the driven shaft 132.
- this torque-changing mechanism can produce a larger torque-change ratio, and is more suitable for heavy-duty vehicles with larger loads. Since the three sets of the eccentric structural components 13 are evenly distributed in the circumferential direction, it is ensured that the radial forces received on the bracket 12 relative to the axis of rotation are always balanced with each other, and the circumferential force is along the same direction of the circumference, thereby forming A moment of force about rotation of the bracket 12 about its axis of rotation.
- the input portion 11 and the output portion 12 of the torque converter 1 have the same structure as the above embodiment.
- the input portion 11 includes a driving shaft 111 and a driving gear 112 mounted on the driving shaft 111.
- 111 is connected to the output shaft of the engine (the embodiment shown in FIGS. 2 and 4), or to the second one-way clutch 3 (the embodiment shown in FIGS. 3 and 5); different from the above embodiment, the active The gear 112 meshes with the three driven gears 133;
- the output portion 14 is an output shaft fixed to the center of the bracket 12, and the active portion 21 of the first one-way clutch 2 is connected to the output shaft 14.
- 7C and 7D show an alternative version of the embodiment.
- the trough bracket 12 shown in 7 ⁇ and 7 ⁇ is also changed into a flat plate shape, so that the structure is simpler and the change is reduced. The weight of the moment mechanism 1 or even the entire shifting device 200.
- the first one-way clutch 2 is a screw-clamped one-way clutch including a clutch drum 51 and is disposed in the First and second clutch discs 52, 53 parallel to each other in the clutch drum 51, at least one drum friction plate 54 and at least one spring 55; the spring 55 can apply to the first and second clutch discs 52, 53 With the preloading force, the first and second clutch discs 52, 53 clamp the drum friction plate 54 under the action of the spring 55, and the drum friction plate 54 is sleeved on a sleeve 56, and
- the clutch drum 51 is coupled to each other with a torque transmission;
- the sleeve 56 has an internal thread, a transmission shaft 57 extends into the sleeve 56, and the extending end is formed with an external thread that cooperates with the internal thread. .
- a plurality of the drum friction plates 54 are provided in common, and a disk friction plate 58 is interposed between each adjacent two drum friction plates 54.
- the disc friction plate 58 is sleeved on the return sleeve 56 and is torque-coupled thereto. In the illustrated direction, when the torque is transmitted from left to right, the clutch drum 51 and the drum friction plate 54 are the active portion 21 of the first one-way clutch 2, the disk friction plate 58, the sleeve 56, the first 1.
- the second clutch plates 52, 53 and the transmission shaft 57 are the driven portions 22 of the first one-way clutch 2, and the drum friction plates 54 and the disk frictions 58 are engaging elements respectively corresponding to the main and driven portions. 23, 24.
- the first and second clutch discs 52 53 correspond to the changing elements 24 of the driven portion 22, that is, the disk friction plates, so that there is no need to set a separate 3 ⁇ 4 friction Slice 58.
- FIG 8a as shown in toilet,: 'the clutch drum 51, first, second Ning disk 52, 53, the drum friction plates 54, sleeve 56 and the rotation axis of the flute disc friction plate 58 coincide;
- the drum plate 54 is coupled to the clutch drum 51 by a spline, and the disk friction plate 58 and the sleeve 56 are also coupled by a spline.
- the pick-and-spline coupling not only ensures that the input torque can be transmitted efficiently, but also facilitates the processing and reduces the production cost.
- the end of the other end of the clutch drum 51 is formed with an outwardly extending hollow shaft 511.
- the extending end of the transmission shaft 57 is supported by the hollow shaft 511 via a bearing 50.
- the bearing 50 is a needle bearing, thereby facilitating the accuracy of positioning of the transmission shaft.
- the first clutch disc 52 is fixed to the transmission shaft 57 and is mounted in the open end of the clutch drum 51 by means of a first elastic snap ring 59A;
- the second clutch The disk 53 is integrally formed with the sleeve 56 and mounted to the transmission shaft 57 by means of a second elastic snap ring 59B.
- the clutch drum There is only one spring 55 in the 51, and the spring 55 is a set of sheet-shaped compression springs on the transmission shaft 57, which are disposed on the second elastic snap ring 59B and the second clutch disc 53.
- the use of the sheet-like pressure not only effectively applies the pre-tightening force, but also has a small axial dimension, thereby reducing the space occupied by the weir spring 55 in the clutch drum 51, thereby reducing the volume of the entire one-way clutch.
- the hollow shaft 511 of the clutch drum 51 in the course of use is coupled with the output shaft 14 of the torque converter 1 by a key, and the return transmission shaft 57 is also coupled to the outside by a key.
- the working principle and process of the screw-pressing one-way clutch are as follows: When the output shaft 14 is rotated in the L1 direction (the locking direction of the clutch) in the figure, the resistance direction of the load is In the opposite direction of L1, the output shaft 14 drives the clutch drum 51 and the drum friction plate 54 to rotate in the L1 direction; due to the preloading force of the compression spring 55, the drum friction plate 54 and the disc friction plate 58 are present.
- the frictional force of the drum friction plate 54 is also rotated in the M direction by the frictional force, and the disk friction plate 58 rotates the sleeve 56 in the L1 direction by the flower bed. Since the transmission shaft 57 and the sleeve 56 are provided with a right-handed thread; the sleeve 56 and the second clutch disc 53 are moved to the right along the transmission shaft 57 to further press the drum blade. 54 and disk friction plate 58. At this time, the one-way clutch is in the locked state, and the transmission shaft 57. will also rotate in the L1 direction. On the contrary, the one-way clutch is in an over-state.
- FIG. 8C is a schematic view showing the working principle of the helically clamped one-way clutch shown in FIG. 8A.
- the basic principle of the helical clamping is the same as the basic principle of the inclined clamping.
- the thread is equivalent to a right triangle.
- a right angle side is perpendicular to the axis of rotation of the cylinder, and the oblique side is wound on the cylindrical surface.
- the inclination angle ⁇ of the oblique side is the helix angle of the thread;
- the working principle of the helically clamped one-way clutch is as shown in Fig.
- the second one-way clutch 3 located at the front end of the torque converter mechanism 1 is also a spiral one-way clutch as shown in FIGS. 8A and 8B, and thus the second one-way clutch 3 It can also transmit high torque, high power, and long service life. Therefore, the transmission of this structure can be applied not only to small cars but also to heavy vehicles.
- the first one-way clutch 2 is a one-way clutch that is compressed by a four-bar linkage, including being covered by each other.
- the housing 60 of the clutch disc 61 and the clutch cover 62 as shown in FIG. 0, in the preferred embodiment of the present invention, the clutch disc 61 and the clutch cover 62 are bolted.
- the housing 60 is provided with a clutch hub 63, a plurality of hub friction plates 65, at least one set of disc friction plates 64 and at least one set of four-link pressing mechanisms 66.
- the disconnector hub 63 is located at the center of the housing 60, and a middle portion of the clutch cover 62 is formed with a through hole 622, one end of the clutch hub 63 (picture - right end) It is exposed from the through hole 622, so that it is coupled with the input shaft or the output shaft of the outer circle.
- the hub friction plate 65 ⁇ is annular, and is placed on the return clutch hub 63 and can be Coupling torque-coupled together, in the preferred embodiment shown in the figures, the clutch hub 63 is coupled to the hub friction plate 65 by a spline.
- a center of the clutch disc 61 is mounted with a transmission shaft 612, One end of the transmission shaft 612 protrudes outwardly, and is connected to the input or output shaft of the outer boundary; the other end is supported in the middle and the hole of the clutch hub 63 via a bearing 67, and the bearing 67 is a needle bearing.
- the shaft 612 is not only radially accurate but also flexible in rotation.
- the disk friction plate 64 and the four-link pressing mechanism 66 have the same number of sets, as shown in FIGS. 9A and 9B.
- the casing 60 is provided with three sets.
- the four-link pressing device 66 is provided with three sets of return disk friction plates 64 correspondingly in the housing 60, and the three sets of four-link pressing devices 66 and the disk friction plates 64 are circumferentially: i hook evenly distributed.
- each of the disk friction plates 64 includes a multi-part annular friction plate which is disposed between the hub friction plates 65; each of the four-wire pressing mechanisms 66 has a
- the horizontal ⁇ 661 has a through hole 641 at the same position of each of the disk friction plates 64.
- the cross bar 661 passes through the through hole 641; the four-link pressing mechanism 66 presses the disk friction plate 64 and the hub friction plate 65 against the friction surface of the clutch disk 61.
- each of the four-link pressing mechanism 66 has a specific structure including: two supporting arms 662, 663 parallel to each other and the crossbar 661 connecting the two supporting arms 662, 663; the two supporting arms 662, 663 are of equal length, one end of which is hinged to the housing 60 by a coupling pin 664, respectively, as shown in the figure, the support arms 662, 663 are respectively hinged to the clutch disc 61 and the clutch cover The other end is hinged to a connecting block 667, 668 by a connecting pin 665, 666, and two ends of the cross bar 661 are respectively fixed on the two connecting blocks 667, 668.
- the housing 60, the two support arms 662, 663 and the crossbar 661 form a parallel four-bar linkage.
- One end of the cross bar 661 is sleeved with a spring 660, and the other end is provided with a pressing block 669.
- the pressing block 669 is hinged to the coupling pin 666.
- the spring 660 is a compression spring, and the compression spring 660 and the pressing block 669 respectively act on both sides of each set of disc friction plates 64, and the compression spring 660 generates compression.
- the pre-tightening force of the disk friction plate 64 and the hub friction plate 65 causes the disk friction plates 64 ⁇ 1 of the hub friction plates 65 to be bonded to each other.
- each of the disk friction plates 64 has two through holes 642 and 643.
- the two cylindrical pins 68 and 69 pass through the two through holes 642 and 643, respectively.
- the disc friction plates are connected in series; the clutch disc 61 and the clutch cover 62 are correspondingly formed with two long slots 611, 621 extending in the circumferential direction; the two ends of the cylindrical pins 68, 69 are inserted into the long slot 611, In 621, the two have two parallel planes that cooperate with each other.
- each set of the disk friction plates 64 is supported on the clutch cover 61 and the clutch disk 62 by the two cylindrical pins 68, 69 which are subjected to the rotation of the disk friction plates 64. Centrifugal force.
- the operation and principle of the four-bar linkage compression type yaw clutch shown in Figs. 9A, 9B are as follows:
- the clutch hub 63 and the hub friction plate 65 For the active portion 21, the disc friction plate 64 and the housing 60 and the transmission shaft 612 are the driven portions 22.
- the clutch hub 63 rotates the hub friction plate 65 in the L1 direction by the spline; the hub friction plate 65 drives the friction plate 64 to also rotate in the L1 direction by frictional force.
- the hub friction plate 65 passes through the parallel four-bar linkage 66
- the movable housing 60 is rotated in the LI direction, and the support arm 663 and the pressing block 669 further press the hub friction plate 65 and the disk friction plate 64 to achieve self-locking.
- the parallel four-bar linkage 66 is automatically unlocked, and the pressure of the pressing block 669 against the disk friction plate 64 and the hub friction plate 65 is reduced.
- the portion 21 and the driven portion 22 are relatively rotatable, and the clutch is in an overrun state.
- the second clutch 3 is also the above-mentioned four-link compression type one-way clutch, which is not only sensitive but also has good wear resistance and can transmit high power torque. Various heavy vehicles.
- the centrifugal force F is generated when it rotates, and the direction of the force F is the centroid of the eccentric mass 'block 131 along the center of the driven shaft 132 ( As shown in the figure); the force F acts on the bracket 12 through the driven shaft 132, and the force F can be decomposed into the radial direction and the circumferential direction of the boat 12 in the direction of the boat 12: radial force Fr and tangential force Ft, due to At any time, the two sets of eccentric structural components 13 are symmetric about the center of the bracket 12, and the two radial forces Fr are equal in magnitude and opposite in direction, and are located on the same straight line, so that the mutual complement is canceled; the two tangential forces Ft are equal in magnitude, direction Conversely and parallel to each other, the two are separated by a certain distance (the axial distance d of the two driven axes), and the moment M is generated, and the force moment M drives the bracket 12 to rotate.
- the centrifugal force F generated by the partial mass and the mass 131 during the rotation is periodically changed according to the rotational position of the eccentric mass 131 with respect to the bracket 12, and thus the force moment M is large/ j, and direction are also cyclical changes.
- the eccentric mass 131 is rotated to the position shown in FIG. 10A, the moment M is clockwise, and the bracket 12 and the output shaft 14 are rotated clockwise; as the eccentric mass 131 continues to rotate, the direction of the moment M is also
- the eccentric mass 131 generates the centrifugal force F in the direction shown, after it is decomposed.
- the tangential force Ft is opposite to that shown in Fig.
- J is the moment of inertia of the eccentric structural component 13 relative to its own axis of rotation
- the force moment M of the inch needle direction is larger. That is, when the force moment M is counterclockwise That is, the eccentric mass 131 stores energy, and when the moment M is a clockwise direction, the eccentric mass 131 outputs energy through the output shaft 14 of the bracket 12. Therefore, the output shaft 612 of the single [3 ⁇ 4 clutch] can continuously output a torque in a clockwise direction (the L3 direction shown in the drawing) continuously.
- the rotational speed of the bracket 12 is slower than the rotational speed of the active gingival 112 during operation, and there is a rotational speed difference between the two, and the rotational speed difference between the two can be used to automatically adjust the output shaft 14 according to the change in the magnitude of the external load. And the torque and the rotational speed output by the one-way clutch transmission shaft 612.
- the second one-way clutch 3 is added to the engine and the torque converter 1 so that the energy of the engine can only be transmitted to the torque converter 1 in a single direction, preventing the eccentric structural component.
- the kinetic energy of 13 is transmitted back to the engine to slow down its own speed, thus affecting the magnitude of the force moment M, as shown in Figures 8D and 9D.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020077011942A KR100909987B1 (ko) | 2004-10-29 | 2004-10-29 | 기계식 무단자동변속 전동장치 |
| PCT/CN2004/001239 WO2006045224A1 (en) | 2004-10-29 | 2004-10-29 | Continuously variable automatic transmission |
| BRPI0419164-1A BRPI0419164A (pt) | 2004-10-29 | 2004-10-29 | transmissão automática variável continuamente controlada mecanicamente |
| JP2007538239A JP4906731B2 (ja) | 2004-10-29 | 2004-10-29 | 機械式無段階自動変速式の伝動装置 |
| US11/666,390 US7985156B2 (en) | 2004-10-29 | 2004-10-29 | Mechanically controlled continuously variable automatic transmission |
| EP04789898A EP1857710A4 (en) | 2004-10-29 | 2004-10-29 | AUTOMATIC TRANSMISSION WITH CONTINUOUS VARIATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2004/001239 WO2006045224A1 (en) | 2004-10-29 | 2004-10-29 | Continuously variable automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006045224A1 true WO2006045224A1 (en) | 2006-05-04 |
Family
ID=36227080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2004/001239 Ceased WO2006045224A1 (en) | 2004-10-29 | 2004-10-29 | Continuously variable automatic transmission |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7985156B2 (zh) |
| EP (1) | EP1857710A4 (zh) |
| JP (1) | JP4906731B2 (zh) |
| KR (1) | KR100909987B1 (zh) |
| BR (1) | BRPI0419164A (zh) |
| WO (1) | WO2006045224A1 (zh) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT10304T (pt) * | 2008-02-29 | 2008-12-02 | Virgilio Jesus Cardoso | Caixa de velocidades de relação auto-adaptável |
| GB2462111A (en) * | 2008-07-24 | 2010-01-27 | Ronald Herbert Dufty | Continuously variable torque converter |
| CN102713248B (zh) * | 2009-11-19 | 2015-06-10 | Dti集团有限公司 | 包括离心脱开式离合器的飞轮模块 |
| ES2395067B1 (es) * | 2011-07-08 | 2013-10-31 | Demetrio FERNÁNDEZ LÓPEZ | Dispositivo multiplicador de par motor para la generación de energía eléctrica. |
| US8452499B2 (en) * | 2011-08-25 | 2013-05-28 | Caterpillar Inc. | System for allocating transmission clutch wear |
| US8556764B1 (en) * | 2013-01-15 | 2013-10-15 | Fu-Hung Ho | Planetary gear type generating system |
| CN104763793A (zh) * | 2015-01-09 | 2015-07-08 | 刘东岭 | 要素省略的分子能发动机 |
| CN111005991B (zh) * | 2019-12-04 | 2022-03-18 | 西南大学 | 采用多片式摩擦离合器的双超越自适应自动变速系统 |
| RO137469A2 (ro) * | 2021-11-25 | 2023-05-30 | Ştefan Ciolacu | Dispozitiv pentru creşterea randamentului oricărui sistem rotativ generator de putere cu variaţie progresivă |
| CN115342132B (zh) * | 2022-07-08 | 2025-04-11 | 华北电力科学研究院有限责任公司 | 基于自动同步离合器的旋转机械在线动平衡方法及结构 |
| CN115823187A (zh) * | 2022-12-22 | 2023-03-21 | 重庆金皇后新能源汽车制造有限公司 | 一种多环加力转换系统、汽车及轮船 |
| US12497165B2 (en) * | 2023-07-13 | 2025-12-16 | Eaton Intelligent Power Limited | Rotary actuator |
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|---|---|---|---|---|
| US4889013A (en) * | 1988-02-29 | 1989-12-26 | Vincent E. Pitassi | Torque converter and assembly utilizing same |
| US4907474A (en) * | 1988-10-07 | 1990-03-13 | Inductran Corporation | Mechanical torque converter |
| US5860321A (en) * | 1995-03-15 | 1999-01-19 | Williams; Eugene A. | Power transmission utilizing conversion of inertial forces |
| CN2604565Y (zh) * | 2002-11-22 | 2004-02-25 | 北京航空航天大学 | 磨擦超越离合器 |
| CN1499106A (zh) * | 2002-11-05 | 2004-05-26 | 李维宁 | 一种利用飞轮惯性的无级变速系统 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB135827A (en) | 1918-11-25 | 1920-01-15 | Jean Edouard Andreau | Improvements in or relating to Epicyclic Transmission Gears. |
| US2667794A (en) * | 1949-05-02 | 1954-02-02 | James Albert Cavanagh | Variable speed power transmission mechanism |
| US3728911A (en) * | 1970-08-13 | 1973-04-24 | W Granville | Infinitely variable speed transmissions |
| JPS5676729A (en) | 1979-11-22 | 1981-06-24 | Honda Motor Co Ltd | Transmission torque controller |
| US5080636A (en) * | 1991-01-22 | 1992-01-14 | Theodore Weber | Intermittent motion drive assembly |
| JPH05180285A (ja) * | 1991-03-29 | 1993-07-20 | Tomiyoshi Iei | 重錘式トルク変換装置 |
| JPH0842644A (ja) * | 1993-10-12 | 1996-02-16 | Kenji Mimura | 無段変速機 |
| JP3569953B2 (ja) * | 1994-04-23 | 2004-09-29 | 山崎 功 | 遊星歯車式変速機構 |
| KR0125924Y1 (ko) * | 1995-05-16 | 1999-04-15 | 구자홍 | 세탁기 |
| JPH09158996A (ja) * | 1995-12-06 | 1997-06-17 | Hirobumi Seki | 歯車式無段変速装置及び自動車用の歯車式無段変速装置と一般産業機械用の歯車式無段変速装置 |
| CO4700333A1 (es) | 1996-05-30 | 1998-12-29 | Kimberly Clark Co | Metodo para transferir un tejido celulosico |
| US6044718A (en) * | 1998-06-02 | 2000-04-04 | Lester; William T. | Continuously variable transmission utilizing oscillating torque and one way drives |
| US6062096A (en) * | 1998-06-02 | 2000-05-16 | Lester; William T. | Continuously variable transmission utilizing oscillating torque and one way drives |
-
2004
- 2004-10-29 JP JP2007538239A patent/JP4906731B2/ja not_active Expired - Fee Related
- 2004-10-29 KR KR1020077011942A patent/KR100909987B1/ko not_active Expired - Fee Related
- 2004-10-29 WO PCT/CN2004/001239 patent/WO2006045224A1/zh not_active Ceased
- 2004-10-29 BR BRPI0419164-1A patent/BRPI0419164A/pt not_active IP Right Cessation
- 2004-10-29 US US11/666,390 patent/US7985156B2/en not_active Expired - Fee Related
- 2004-10-29 EP EP04789898A patent/EP1857710A4/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889013A (en) * | 1988-02-29 | 1989-12-26 | Vincent E. Pitassi | Torque converter and assembly utilizing same |
| US4907474A (en) * | 1988-10-07 | 1990-03-13 | Inductran Corporation | Mechanical torque converter |
| US5860321A (en) * | 1995-03-15 | 1999-01-19 | Williams; Eugene A. | Power transmission utilizing conversion of inertial forces |
| CN1499106A (zh) * | 2002-11-05 | 2004-05-26 | 李维宁 | 一种利用飞轮惯性的无级变速系统 |
| CN2604565Y (zh) * | 2002-11-22 | 2004-02-25 | 北京航空航天大学 | 磨擦超越离合器 |
Non-Patent Citations (1)
| Title |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4906731B2 (ja) | 2012-03-28 |
| US7985156B2 (en) | 2011-07-26 |
| KR100909987B1 (ko) | 2009-07-29 |
| EP1857710A4 (en) | 2011-03-02 |
| US20080287241A1 (en) | 2008-11-20 |
| JP2008518168A (ja) | 2008-05-29 |
| EP1857710A1 (en) | 2007-11-21 |
| KR20070084585A (ko) | 2007-08-24 |
| BRPI0419164A (pt) | 2008-03-11 |
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