Clutch, powertrain, and vehicle

Abstract

Embodiments of the present application provide a clutch, a powertrain, and a vehicle. The clutch comprises a first power connection unit, a second power connection unit, and a third power connection unit. The third power connection unit is movably arranged between the first power connection unit and the second power connection unit; and the third power connection unit is at least engaged with either the first power connection unit or the second power connection unit. By reusing the same unit to control different power connection units, the occupied space and equipment costs can be reduced while improving the efficiency of a hybrid powertrain.

Description

A clutch, a power system, and a vehicle

[0001] This application claims priority to Chinese Patent Application No. 202411017282.6, filed on July 29, 2024, entitled "A Clutch, a Power System, and a Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of vehicle technology, and in particular to a clutch, a power system, and a vehicle. Background Technology

[0003] In current mainstream P1P3 hybrid systems, both the P1 motor and the engine are directly connected. During direct engine drive, this hybrid system drags the P1 motor, resulting in efficiency loss. To improve the efficiency of the hybrid system, this application designs a new clutch that can disengage the P1 motor during direct engine drive. Furthermore, this clutch occupies less space, has lower cost, and requires a simpler hydraulic system than existing dual-clutch systems.

[0004] Application content

[0005] In view of the above problems, a clutch, a power system, and a vehicle are proposed to overcome or at least partially solve the above problems, comprising:

[0006] A clutch includes: a first power connection unit, a second power connection unit, and a third power connection unit, wherein the third power connection unit is movably disposed between the first power connection unit and the second power connection unit; at least the third power connection unit engages with the first power connection unit, or the third power connection unit engages with the second power connection unit.

[0007] Optionally, when the third power connection unit is in the first position, the third power connection unit is engaged with the first power connection unit;

[0008] When the third power connection unit is in the second position, the third power connection unit engages with the second power connection unit.

[0009] Optionally, when the third power connection unit is in the third position, the third power connection unit is disconnected from the first power connection unit and the second power connection unit.

[0010] Optionally, when the third power connection unit moves along the first direction, it moves from the first position to the second position.

[0011] Optionally, the third power connection unit includes an input shaft and a connector, the connector being movably disposed between the first power connection unit and the second power connection unit; the first power connection unit and the second power connection unit are sleeved on the input shaft.

[0012] Optionally, the third power connection unit further includes a drive unit, which drives the connector to move between the first power connection unit and the second power connection unit.

[0013] Optionally, the connector, the first power connection unit, and the input shaft form a first oil chamber, and the connector, the second power connection unit, and the input shaft form a second oil chamber; the drive unit is used to inject oil into the first oil chamber and / or the second oil chamber.

[0014] Optionally, the drive unit includes an oil delivery pipe and a mechanical pump; the mechanical pump is connected to the first oil chamber and / or the second oil chamber via the oil delivery pipe.

[0015] Optionally, the drive unit includes a control motor and a telescopic rod, the telescopic rod being connected to the control motor and the connecting member.

[0016] Optionally, the drive unit includes a first electromagnetic attraction component, which is used to control the connector to move toward the first power connection unit or the second power connection unit.

[0017] Optionally, a first elastic device is provided between the first power connection unit and the third power connection unit;

[0018] And / or, a second elastic device is provided between the second power connection unit and the third power connection unit.

[0019] Optionally, the first power connection unit is a clutch unit with a wet clutch structure, and the second power connection unit is a clutch unit with an end-face tooth clutch structure.

[0020] This application also provides a power system, including a first power end, a second power end, a third power end, and a clutch as described in any one of the claims, respectively connected to the first power end, the second power end, and the third power end.

[0021] Optionally, the first power end is connected to the third power connection unit, the second power end is connected to the second power connection unit, and the third power end is connected to the first power connection unit.

[0022] Optionally, it also includes an engine connected to the first power end.

[0023] Optionally, the engine is coaxial with or geared to the first power end.

[0024] Optionally, it also includes a generator connected to the second power end.

[0025] Optionally, the generator is coaxial with or geared to the second power end.

[0026] Optionally, the third power end is a power output end.

[0027] This application also provides a vehicle, including the clutch as described above, or the power system as described above.

[0028] The embodiments of this application have the following advantages:

[0029] In this embodiment, the clutch includes a first power connection unit, a second power connection unit, and a third power connection unit, wherein the third power connection unit is movably disposed between the first power connection unit and the second power connection unit; at least the third power connection unit engages with the first power connection unit, or the third power connection unit engages with the second power connection unit. By reusing the same unit to control different power connection units, the efficiency of the hybrid power system can be improved while reducing space occupation and equipment costs. Attached Figure Description

[0030] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 is a simplified structural diagram of a hybrid system in the prior art;

[0032] Figure 2 is a simplified structural diagram of the clutch and hydraulic system in a prior art two-way clutch device;

[0033] Figure 3 is a schematic diagram of the structure of a clutch provided in some embodiments of this application;

[0034] Figure 4a is a cross-sectional view of a clutch provided in some embodiments of this application;

[0035] Figure 4b is a cross-sectional view of another clutch provided in some embodiments of this application;

[0036] Figure 5 is a cross-sectional view of another clutch provided in some embodiments of this application;

[0037] Figure 6 is a system block diagram of a power system provided in some embodiments of this application;

[0038] Figure 7 is a system block diagram of another power system provided in some embodiments of this application;

[0039] Explanation of reference numerals in Figures 1 and 2: 6th gear 31, 7th gear 32, 8th gear 33, 9th gear 34, 10th gear 35, engine 36, generator 37, clutch 38, first output end 39, second output end 40, hydraulic system 41, drive motor 46. In Figures 3-7: Clutch-1, First Power Connection Unit-2, Second Power Connection Unit-3, Third Power Connection Unit-4, Input Shaft-5, Connector-6, First Oil Chamber-8, Second Oil Chamber-9, Oil Supply Pipe-10, First Elastic Device-12, Engine-13, Generator-14, First Clutch Inner Hub-15, First Clutch Outer Hub-16, First Clutch Friction Plate Assembly-17, Second Clutch Inner Hub-18, Second Clutch Sliding Tooth-19, Second Clutch Friction Plate Assembly-20, First Gear-21, Second Gear-22, First Bearing-23, Second Bearing-24, Third Gear-25, Fourth Gear-26, Fifth Gear-27, Power Output End-28, Second Clutch Outer Hub-29, Power System-42, First Power End-43, Second Power End-44, Third Power End-45. Specific Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] In current hybrid systems, the generator can be directly connected to the engine; this connection is a "hard connection," which means that if either the engine or the generator rotates, the other will rotate as well.

[0042] As shown in Figure 1: Generator 37 is connected to engine 36 through eighth gear 33 and seventh gear 32; engine 36 is connected to sixth gear 31 through clutch 38; sixth gear 31 is connected to ninth gear 34; ninth gear 34 is connected to tenth gear 35 and drive motor 46 respectively; tenth gear 35 is connected to first output terminal 39 and second output terminal 40; first output terminal 39 and second output terminal 40 are connected to wheels.

[0043] The problem with this connection is that when the control clutch 38 is connected to the sixth gear 31, the power of the engine 36 can be transmitted to the wheels through the sixth gear 31 (the first output end 39 and the second output end 40 are connected to the wheels); however, at this time, the generator 37 will also be dragged by the engine 36; this dragging is a loss for the engine 36.

[0044] To improve system efficiency, a two-way clutch device needs to be added to the existing hybrid system to enable the sixth gear 31 and the seventh gear 32 to disengage and engage with the engine shaft 36, respectively.

[0045] Specifically, as shown in Figure 2, independent hydraulic systems 41 can be set for the two clutches 38 respectively to disengage and engage the sixth gear 31 and the seventh gear 32 in Figure 1 with the shaft of the engine 36. Although this can improve system efficiency, it will occupy a lot of space and increase costs. In order to improve the efficiency of the hybrid system while reducing space and costs, this application provides a clutch that can control a bidirectional clutch by reusing a power connection unit. Specifically, as shown in Figure 3a, a structural schematic diagram of a clutch 1 according to an embodiment of this application is shown; as shown in Figure 3a, the clutch 1 may include:

[0046] The system comprises a first power connection unit 2, a second power connection unit 3, and a third power connection unit 4, wherein the third power connection unit 4 is movably disposed between the first power connection unit 2 and the second power connection unit 3; at least the third power connection unit 4 is engaged with the first power connection unit 2, or the third power connection unit 4 is engaged with the second power connection unit 3.

[0047] In this embodiment, the clutch 1 can be a bidirectional clutch device, which may include two clutch units. Specifically, the clutch 1 may include a first power connection unit 2 and a second power connection unit 3. When the first power connection unit 2 is engaged, it connects to the corresponding power end and performs the corresponding function. When the second power connection unit 3 is engaged, it connects to the corresponding power end and performs the corresponding function. For example, if the power end connected to the first power connection unit 2 is a wheel, then when the first power connection unit 2 is engaged, the clutch 1 can transmit power to the wheel through the first power connection unit 2. If the power end connected to the second power connection unit 3 is a generator 14, then when the second power connection unit 3 is engaged, the clutch 1 can transmit power to the generator 14 through the second power connection unit 3. This embodiment does not limit this.

[0048] In practical applications, the clutch 1 mentioned in the embodiments of this application may further include a third power connection unit 4, which can be used to output power to the first power connection unit 2 and / or the second power connection unit 3. Specifically, the third power connection unit 4 is movably disposed between the first power connection unit 2 and the second power connection unit 3, and the third power connection unit 4 can be moved to engage with the first power connection unit 2 or to engage with the second power connection unit 3.

[0049] In this embodiment, when the third power connection unit 4 moves to engage with the first power connection unit 2, the first power connection unit 2 will be in an engaged state; at this time, the power output by the third power connection unit 4 will be transmitted to the first power connection unit 2. When the third power connection unit 4 moves to engage with the second power connection unit 3, the second power connection unit 3 will be in an engaged state; at this time, the power output by the third power connection unit 4 will be transmitted to the second power connection unit 3.

[0050] For example, if the power end connected to the first power connection unit 2 is a wheel, then when the first power connection unit 2 is in the engaged state, the clutch 1 can transmit the power output by the third power connection unit 4 to the wheel through the first power connection unit 2. If the power end connected to the second power connection unit 3 is a generator 14, then when the second power connection unit 3 is in the engaged state, the clutch 1 can transmit the power output by the third power connection unit 4 to the generator 14 through the second power connection unit 3. This application embodiment does not impose any limitations on this.

[0051] Through the embodiments of this application, the clutch 1 can reuse a third power connection unit 4 to realize the control of different power connection components 6, which can reduce space occupation and equipment cost while improving the efficiency of the hybrid power system 42.

[0052] In one embodiment of this application, when the third power connection unit 4 is in the first position, the third power connection unit 4 is engaged with the first power connection unit 2;

[0053] When the third power connection unit 4 is in the second position, the third power connection unit 4 is engaged with the second power connection unit 3.

[0054] In some feasible embodiments, when the third power connection unit 4 moves to the first position, the third power connection unit 4 can engage with the first power connection unit 2; when the third power connection unit 4 engages with the first power connection unit 2, the first power connection unit 2 will be in an engaged state, thereby transmitting the power output by the third power connection unit 4.

[0055] When the second power connection unit 3 moves to the second position, the third power connection unit 4 can engage with the second power connection unit 3; when the third power connection unit 4 engages with the second power connection unit 3, the second power connection unit 3 will be in an engaged state, thereby transmitting the power output by the third power connection unit 4.

[0056] In one embodiment of this application, when the third power connection unit 4 is in the third position, the third power connection unit 4 is disconnected from the first power connection unit 2 and the second power connection unit 3.

[0057] In some feasible embodiments, when the third power connection unit 4 moves to the third position, the third power connection unit 4 can be disconnected from the first power connection unit 2 and the second power connection unit 3 respectively; at this time, the third power connection unit 4 is neither engaged with the first power connection unit 2 nor with the second power connection unit 3; at this time, neither the first power connection unit 2 nor the second power connection unit 3 is engaged.

[0058] In one embodiment of this application, when the third power connection unit 4 moves along the first direction, it moves from the first position to the second position.

[0059] In some feasible embodiments, when the third power connection unit 4 moves along the first direction, it moves from the first position to the second position. During this process, when the third power connection unit 4 is in the first position, it engages with the first power connection unit 2, at which point the first power connection unit 2 is in an engaged state, and the second power connection unit 3 is disconnected from the third power connection unit 4, at which point the second power connection unit 3 is in a separated state; when the third power connection unit 4 moves along the first direction, it leaves the first position, at which point it disconnects from the first power connection unit 2, at which point the first power connection unit 2 is in a separated state.

[0060] When the third power connection unit 4 leaves the first position but has not reached the second position, it can be understood that the third power connection unit 4 is in the third position; at this time, the third power connection unit 4 is neither engaged with the first power connection unit 2 nor with the second power connection unit 3.

[0061] When the third power connection unit 4 moves to the second position, the third power connection unit 4 will engage with the second power connection unit 3. At this time, the third power connection unit 4 is disconnected from the first power connection unit 2, that is, the second power connection unit 3 is in the engaged state and can transmit the power output by the third power connection unit 4, while the first power connection unit 2 is in the disengaged state and cannot transmit the power output by the third power connection unit 4.

[0062] For example, the first direction can refer to the direction from the second position to the first position, or it can refer to the direction from the second motion connection unit 3 to the first motion connection unit 2. This application embodiment does not limit this.

[0063] In one embodiment of this application, the third power connection unit 4 includes an input shaft 5 and a connector 6, the connector 6 being movably disposed between the first power connection unit 2 and the second power connection unit 3; the first power connection unit 2 and the second power connection unit 3 are sleeved on the input shaft 5.

[0064] In some feasible embodiments, the third power connection unit 4 may include an input shaft 5 and a connector 6; wherein, the input shaft 5 can be used to transmit power to the third power connection unit 4, and when the third power connection unit 4 is engaged with the first power connection unit 2, the first power connection unit 2 is used to transmit the power output by the third power connection unit 4 to the clutch 1; when the third power connection unit 4 is engaged with the second power connection unit 3, the second power connection unit 3 is used to transmit the power output by the third power connection unit 4 to the clutch 1. The embodiments of this application do not limit this.

[0065] In practical applications, the connector 6 is movably disposed between the first power connection unit 2 and the second power connection unit 3, and the first power connection unit 2 and the second power connection unit 3 are respectively sleeved on the input shaft 5.

[0066] In this embodiment of the application, the clutch 1 can be controlled by moving the position of the connecting member 6; specifically, when the connecting member 6 is in the first position, it will engage with the first power connection unit 2; at this time, the first power connection unit 2 will be in the engaged state to transmit the power output by the input shaft 5 to the clutch 1.

[0067] When the connector 6 is in the second position, it will engage with the second power connection unit 3; at this time, the second power connection unit 3 will be in the engaged state to transmit the power output from the input shaft 5 to the clutch 1.

[0068] In one embodiment of this application, the third power connection unit 4 further includes a drive unit, which drives the connector 6 to move between the first power connection unit 2 and the second power connection unit 3.

[0069] In some feasible embodiments, the third power connection unit 4 may further include a drive unit, which may be connected to the connector 6 to drive the connector 6 to move between the first power connection unit 2 and the second power connection unit 3.

[0070] Specifically, the drive unit can drive the connector 6 to move from the first position to the second position along the first direction, so as to realize the change of the clutch 1 from the first power connection unit 2 being in the engaged state to the second power connection unit 3 being in the engaged state.

[0071] In one embodiment of this application, the movement of the connector 6 can be achieved by hydraulic drive; specifically: the connector 6, the first power connection unit 2, and the input shaft 5 form a first oil chamber 8, and the connector 6, the second power connection unit 3, and the input shaft 5 form a second oil chamber 9; the drive unit is used to inject oil into the first oil chamber 8 and / or the second oil chamber 9.

[0072] In practical applications, the connector 6, the first power connection unit 2, and the input shaft 5 can form a first oil cavity 8, and the connector 6, the second power connection unit 3, and the input shaft 5 can form a second oil cavity 9.

[0073] The drive unit can be used to inject oil into the first oil chamber 8 or the second oil chamber 9. When the drive unit injects oil into the first oil chamber 8, the volume of the first oil chamber 8 will increase and the volume of the second oil chamber 9 will decrease. Thus, the increased volume of the first oil chamber 8 will push the connector 6 to move toward the second power connection unit 3 until the second power connection unit 3 engages with the connector 6.

[0074] When the drive unit injects oil into the second oil chamber 9, the volume of the second oil chamber 9 will increase and the volume of the first oil chamber 8 will decrease; thus, the increased volume of the second oil chamber 9 will push the connector 6 to move toward the first power connection unit 2 until the first power connection unit 2 engages with the connector 6.

[0075] In one embodiment of this application, the drive unit includes an oil supply pipe 10 and a mechanical pump; the mechanical pump is connected to the first oil chamber 8 and / or the second oil chamber 9 through the oil supply pipe 10.

[0076] In practical applications, the drive unit may include a mechanical pump and an oil supply pipe 10 disposed in the input shaft 5; the oil supply pipe 10 may be connected to the mechanical pump and the first oil chamber 8 respectively, or the oil supply pipe 10 may be connected to the mechanical pump and the second oil chamber 9 respectively, and the input pipe may also be configured to be connected to the mechanical pump, the first oil chamber 8 and the second oil chamber 9 respectively.

[0077] If the oil supply pipe 10 is connected to the mechanical pump and the first oil chamber 8 respectively, the mechanical pump can inject oil into the first oil chamber 8 through the oil supply pipe 10. As a result, the increased volume of the first oil chamber 8 will push the connector 6 to move towards the second power connection unit 3 until the second power connection unit 3 engages with the connector 6.

[0078] If the oil supply pipe 10 is connected to the mechanical pump and the second oil chamber 9 respectively, the mechanical pump can inject oil into the second oil chamber 9 through the oil supply pipe 10. As a result, the increased volume of the second oil chamber 9 will push the connector 6 to move towards the first power connection unit 2 until the first power connection unit 2 and the connector 6 are engaged.

[0079] If the oil supply pipe 10 is connected to the mechanical pump, the first oil chamber 8, and the second oil chamber 9 respectively, the mechanical pump can inject oil into either the first oil chamber 8 or the second oil chamber 9 through the oil supply pipe 10. When the mechanical pump injects oil into the first oil chamber 8 through the oil supply pipe 10, the volume of the first oil chamber 8 will increase and the volume of the second oil chamber 9 will decrease. Therefore, the increased volume of the first oil chamber 8 will push the connector 6 towards the second power connection unit 3 until the second power connection unit 3 engages with the connector 6. When the mechanical pump injects oil into the second oil chamber 9 through the oil supply pipe 10, the volume of the second oil chamber 9 will increase and the volume of the first oil chamber 8 will decrease. Therefore, the increased volume of the second oil chamber 9 will push the connector 6 towards the first power connection unit 2 until the first power connection unit 2 engages with the connector 6.

[0080] For example, as shown in Figures 4a and 4b, the first power connection unit 2 may include a first clutch inner hub 15, a first clutch outer hub 16, and a first clutch friction plate assembly 17; the second power connection unit 3 may include a second clutch inner hub 18 and a second clutch sliding tooth 19; wherein, the first clutch inner hub 15 may form a first oil chamber 8 with the input shaft 5 and the connecting member 6; the second clutch inner hub 18 may form a second oil chamber 9 with the input shaft 5 and the connecting member 6; the oil supply pipe 10 may be arranged at the axis of the input shaft 5, and the input shaft 5 may also have an oil inlet hole 11 to input the oil in the oil supply pipe 10 into the second oil chamber 9.

[0081] When the drive unit injects oil into the second oil chamber 9, the volume of the second oil chamber 9 will increase and the volume of the first oil chamber 8 will decrease; thus, the increased volume of the second oil chamber 9 will push the connector 6 to move toward the first clutch friction plate group 17 of the first power connection unit 2 until the first clutch friction plate group 17 engages with the connector 6.

[0082] When the first clutch friction plate assembly 17 engages with the connector 6, the first clutch inner hub 15 and the first clutch outer hub 16 are connected through the first clutch friction plate assembly 17. At this time, the first moving connection unit 2 is in the engaged state, and the first moving connection unit 2 can transmit the power output by the third power connection unit 4 to the corresponding output end to complete the torque output.

[0083] In another embodiment of this application, the movement of the connector 6 can also be achieved by a motor drive; specifically, the drive unit includes a control motor and a telescopic rod, and the telescopic rod is connected to the control motor and the connector 6.

[0084] In practical applications, the control motor can be connected to the telescopic rod and can control the telescopic rod to extend or retract in the first direction; the telescopic rod can be connected to the connecting member 6, so that when the control motor drives the telescopic rod to extend and / or retract in the first direction, it drives the connecting member 6 to move from the first position to the second position, or from the second position to the first position. This application embodiment does not limit this.

[0085] In another embodiment of this application, the movement of the connector 6 can also be achieved by electromagnetic drive; specifically, the drive unit includes a first electromagnetic magnetic attraction component, which is used to control the connector 6 to move toward the first power connection unit 2 or the second power connection unit 3.

[0086] In some feasible embodiments, the connector 6 can be a magnetic attraction component, or a second electromagnetic magnetic component can be provided on the connector 6, which can be a permanent magnet; in addition, a first electromagnetic attraction component can be provided, which can control the connector 6 (or the second electromagnetic magnetic component provided on the connector 6) to move towards the first power connection unit 2 or the second power connection unit 3 when power is supplied to the first electromagnetic attraction component, thereby moving the connector 6.

[0087] For example, the second electromagnetic magnetic component can be disposed on the first power connection unit 2 or the second power connection unit 3. The position of the component is not limited in this embodiment, as long as it can control the connector 6 (or the second electromagnetic magnetic component disposed on the connector 6) to move towards the first power connection unit 2 or the second power connection unit 3.

[0088] In one embodiment of this application, a first elastic device 12 is provided between the first power connection unit 2 and the third power connection unit 4;

[0089] And / or, a second elastic device is provided between the second power connection unit 3 and the third power connection unit 4.

[0090] In some feasible embodiments, a first elastic device 12 can be provided between the first power connection unit 2 and the third power connection unit 4, or a second elastic device can be provided between the second power connection unit 3 and the third power connection unit 4; thus, when the third power connection unit 4 is moved by hydraulic, motor or magnetic drive and needs to be reset, it can be reset by the first elastic device 12 or the second elastic device.

[0091] Specifically, a first elastic device 12 is provided between the first power connection unit 2 and the third power connection unit 4. When the third power connection unit 4 is moved to the first position and engaged with the first power connection unit 2, and it is necessary for the third power connection unit 4 to disconnect from the first power connection unit 2 and engage with the second power connection unit 3, the hydraulic, motor, or magnetic drive is stopped. At this time, under the action of the elastic force of the first elastic device 12, the third power connection unit 4 will move from the first position to the second position, disconnect from the first power connection unit 2, and engage with the second power connection unit 3.

[0092] A second elastic device is provided between the second power connection unit 3 and the third power connection unit 4. When the third power connection unit 4 is moved to the second position and engaged with the second power connection unit 3, and it is necessary for the third power connection unit 4 to disconnect from the second power connection unit 3 and engage with the first power connection unit 2, the hydraulic, motor, or magnetic drive is stopped. At this time, under the action of the elastic force of the second elastic device, the third power connection unit 4 will move from the second position to the first position, disconnect from the second power connection unit 3, and engage with the first power connection unit 2.

[0093] For example, as shown in Figures 4a and 4b, the first elastic device 12 can be disposed between the first clutch inner hub 15 of the first power connection unit 2 and the connecting member 6; specifically, the first elastic device 12 can be disposed in the first oil chamber 8.

[0094] In one embodiment of this application, the first power connection unit 2 is a clutch unit with a wet clutch structure, and the second power connection unit 3 is a clutch unit with an end face tooth clutch structure.

[0095] In some feasible embodiments, the first power connection unit 2 can be connected to the wheel, and the second power connection unit 3 can be connected to the generator 14. The first power connection unit 2 can be a clutch unit with a wet clutch structure, and the second power connection unit 3 can be a clutch unit with an end-face tooth clutch structure.

[0096] For generator 14 and engine 13, generator 14 has a strong speed regulation capability, which can adjust the speed in a timely manner. When the speed is adjusted to be close to the speed of engine 13, the first motion connection unit 2 is closed, resulting in a small engagement impact. Even if there is an engagement impact, it will not affect the driving experience because it does not involve the power of the whole vehicle. Furthermore, the simple jaw clutch structure can further reduce the volume and cost.

[0097] For the engine 13 and the wheels, there cannot be sudden changes in power during power transmission; therefore, the use of the friction plate clutch 1 can provide the ability to gradually change power, thereby improving driving comfort.

[0098] For example, as shown in Figures 4a and 4b, the first clutch outer hub 16 can be fixedly connected to the first gear 21; the first gear 21 can be connected to the wheel and transmit the power output from the first clutch outer hub 16 to the wheel. The first gear 21 can be sleeved on the input shaft 5 through the first bearing 23.

[0099] As shown in Figures 4a and 4b, the second power connection unit 3 can be a clutch unit with an end face tooth clutch structure; specifically, the second power connection unit 3 can include a second clutch inner hub 18 and a second clutch sliding tooth 19; wherein, the second clutch sliding tooth 19 can be fixedly connected to the connecting member 6; and the second clutch sliding tooth 19 is slidably connected to the second clutch inner hub 18, specifically, the second clutch sliding tooth 19 and the second clutch inner hub 18 can be connected by a spline.

[0100] In some feasible embodiments, the second clutch sliding tooth 19 may be provided with teeth that match the second gear 22 on the side near the second gear 22; thus, when the connector 6 approaches the second power connection unit 3, it can drive the second clutch sliding tooth 19 to slide on the second clutch inner hub 18 toward the second gear 22 until the teeth on the second clutch sliding tooth 19 engage with the second gear 22.

[0101] For example, the second gear 22 can mesh with the third gear 25. When the second gear 22 rotates with the second motion connection unit 3, it can drive the third gear 25 to rotate; the second gear 22 can be sleeved on the input shaft 5 through the second bearing 24; the third gear 25 can be connected to the generator.

[0102] As shown in Figure 5, the second power connection unit 3 can also be a clutch unit with a wet clutch structure; specifically: the connecting member 6, the first clutch inner hub 15, and the input shaft 5 form a first oil chamber 8, and the connecting member 6, the second clutch inner hub 18, and the input shaft 5 also form a second oil chamber 9; the first elastic device 12 can be disposed in the first oil chamber 8. The second power connection unit 3 may include a second clutch inner hub 18, a second clutch outer hub 29, and a second clutch friction plate assembly 20.

[0103] The second clutch friction plate group 20 can be arranged in a cross-over manner on the second clutch inner hub 18 and the second clutch outer hub 29.

[0104] When the connecting member 6 abuts against the second clutch friction plate group 20, the intersecting and overlapping second clutch friction plate group 20 will come into contact due to the pressure. Thus, the second clutch inner hub 18 and the second clutch outer hub 29 will be connected through the second clutch friction plate group 20. Therefore, when the second clutch inner hub 18 rotates, it will drive the rotation of the second clutch outer hub 29. When the connecting member 6 separates from the second clutch friction plate group 20, the intersecting and overlapping second clutch friction plate group 20 will separate due to the absence of pressure. Thus, the second clutch inner hub 18 and the second clutch outer hub 29 will separate. Therefore, when the second clutch inner hub 18 rotates, it will not drive the rotation of the second clutch outer hub 29.

[0105] Exemplarily, the second clutch outer hub 29 can be fixedly connected to the second gear 22. The second gear 22 can be sleeved on the input shaft 5 through the second bearing 24, and the second gear 22 can transmit the power output by the second power connection unit 3 to the generator 14.

[0106] In practical applications, the connecting member 7 can be provided with a protrusion for engaging with the first power connection unit 2 and the second power connection unit 3, and a unit for connecting to the input shaft 5. The protrusion and the unit for connecting to the input shaft 5 can be connected integrally to form the connecting member 7. Specifically:

[0107] As shown in FIGS. 3a - 5, the connecting member 7 can be in a style with one end in an I - shape and the other end in a straight - line shape. The I - shaped end can ensure that the connecting member 7 can move in the first direction through engagement with the first power connection unit 2 and the second power connection unit 3. And the I - shaped end can also be used to engage with the first power connection unit 2 and the second power connection unit 3, so that the first power connection unit 2 is in an engaged state, or the second power connection unit 3 is in an engaged state. The embodiments of the present application do not limit this.

[0108] In some feasible embodiments, the connecting member 7 can also be in a cross - shape. The vertical bar of the cross - shape can be parallel to the first power connection unit 2 and the second power connection unit 3 respectively, and the horizontal bar of the cross - shape can be perpendicular to the first power connection unit 2 and the second power connection unit 3 respectively. The cross - shaped connecting member 7 moves between the first power connection unit 2 and the second power connection unit 3, and the horizontal bar of the cross - shape can engage with the first power connection unit 2 and the second power connection unit 3, so that the first power connection unit 2 is in an engaged state, or the second power connection unit 3 is in an engaged state. The embodiments of the present application do not limit this.

[0109] This application embodiment also provides a power system 42, as shown in FIG6. The power system 42 may include a first power end 43, a second power end 44, a third power end 45, and a clutch 1 as mentioned in the above embodiment, which is connected to the first power end 43, the second power end 44, and the third power end 45 respectively.

[0110] In one embodiment of this application, the first power end 43 can be connected to the third power connection unit 4, the second power end 44 can be connected to the second power connection unit 3, and the third power end 45 can be connected to the first power connection unit 2.

[0111] In practical applications, the first power end 43 can output power to the third power connection unit 4; when the third power connection unit 4 is connected to the first power connection unit 2, the power output by the first power end 43 can be transmitted to the third power end 45 through the third power connection unit 4 and the first power connection unit 2. When the third power connection unit 4 is connected to the second power connection unit 3, the power output by the first power end 43 can be transmitted to the second power end 44 through the third power connection unit 4 and the second power connection unit 3. This application embodiment does not limit this.

[0112] In one embodiment of this application, the power system 42 may further include an engine 13, which may be connected to the first power end 43; the engine 13 may output power from the first power end 43 to the third power connection unit 4.

[0113] In some feasible embodiments, the engine 13 may be coaxial with or geared to the first power end 43.

[0114] In one embodiment of this application, the power system 42 may further include a generator 14, which may be connected to a second power end 44; the generator 14 may be connected to a second power connection unit 3 through the second power end 44, and thus connected to the engine 13 through a third power connection unit 4 and a first power end 43.

[0115] In some feasible embodiments, the generator 14 may be coaxial with or geared to the second power end 44.

[0116] In one embodiment of this application, the third power end 45 is a power output end 28. For example, the third power end 45 can be connected to a wheel; for instance, the third power end 45 and the wheel can be coaxial or driven by gears. This embodiment of the application does not limit this. In another example, the third power end 45 can also be connected to a drive motor. Yet another example, the third power end 45 can also be connected to both a wheel and a drive motor, respectively. This embodiment of the application does not limit this.

[0117] For example, as shown in Figure 7, the power system 42 includes a first power end 43, a second power end 44, a third power end 45, and a clutch 1; wherein, the first power end 43 can be connected to the third power connection unit 4, the second power end 44 can be connected to the second power connection unit 3, and the third power end 45 can be connected to the first power connection unit 2. The first power end 43 is connected to the engine 13; the second power end 44 is connected to the generator 14, and the third power end 45 is connected to the power output end 28.

[0118] The second power end 43 may include a second gear 22 and a third gear 25, and the generator 14 may be connected to the second power connection unit 3 through the second gear 22 and the third gear 25; the third power end 45 may include a fourth gear 26 and a fifth gear 27, and the power output end 28 may be connected to the first power connection unit 2 through the fourth gear 26 and the fifth gear 27.

[0119] It should be noted that all cross-sectional views mentioned in the embodiments of this application are half of the radial cross-section; rotating the cross-sectional view 360° around the input axis yields the corresponding three-dimensional structure; the embodiments of this application use cross-sectional views to illustrate the relationship between the structures more clearly, but this does not mean that the cross-sectional view is the structure of the solution mentioned in the embodiments of this application.

[0120] This application also provides a vehicle that may include a clutch 1 as mentioned in the above embodiments, or a power system 42 as mentioned in the above embodiments.

[0121] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0122] The above provides a detailed description of a clutch, a power system, and a vehicle. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A clutch (1), wherein, The clutch (1) includes: a first power connection unit (2), a second power connection unit (3) and a third power connection unit (4), wherein the third power connection unit (4) is movably disposed between the first power connection unit (2) and the second power connection unit (3); at least the third power connection unit (4) engages with the first power connection unit (2), or the third power connection unit (4) engages with the second power connection unit (3).

2. The clutch (1) according to claim 1, wherein, When the third power connection unit (4) is in the first position, the third power connection unit (4) is engaged with the first power connection unit (2); When the third power connection unit (4) is in the second position, the third power connection unit (4) engages with the second power connection unit (3).

3. The clutch (1) according to claim 1, wherein, When the third power connection unit (4) is in the third position, the third power connection unit (4) is disconnected from the first power connection unit (2) and the second power connection unit (3).

4. The clutch (1) according to claim 1, wherein, When the third power connection unit (4) moves along the first direction, it moves from the first position to the second position.

5. The clutch (1) according to claim 1, wherein, The third power connection unit (4) includes an input shaft (5) and a connector (6). The connector (6) is movably disposed between the first power connection unit (2) and the second power connection unit (3). The first power connection unit (2) and the second power connection unit (3) are sleeved on the input shaft (5).

6. The clutch (1) according to claim 5, wherein, The third power connection unit (4) further includes a drive unit, which drives the connector (6) to move between the first power connection unit (2) and the second power connection unit (3).

7. The clutch (1) according to claim 6, wherein, The connector (6), the first power connection unit (2), and the input shaft (5) form a first oil chamber (8), and the connector (6), the second power connection unit (3), and the input shaft (5) form a second oil chamber (9); the drive unit is used to inject oil into the first oil chamber (8) and / or the second oil chamber (9).

8. The clutch (1) according to claim 7, wherein, The drive unit includes an oil delivery pipe (10) and a mechanical pump; the mechanical pump is connected to the first oil chamber (8) and / or the second oil chamber (9) through the oil delivery pipe (10).

9. The clutch (1) according to claim 6, wherein, The drive unit includes a control motor and a telescopic rod, and the telescopic rod is connected to the control motor and the connector (6).

10. The clutch (1) according to claim 6, wherein, The drive unit includes a first electromagnetic magnetic attraction component, which is used to control the connector (6) to move toward the first power connection unit (2) or the second power connection unit (3).

11. The clutch (1) according to any one of claims 1-10, wherein, A first elastic device (12) is provided between the first power connection unit (2) and the third power connection unit (4); And / or, a second elastic device is provided between the second power connection unit (3) and the third power connection unit (4).

12. The clutch (1) according to any one of claims 1-10, wherein, The first power connection unit (2) is a clutch unit with a wet clutch structure, and the second power connection unit (3) is a clutch unit with an end face tooth clutch structure.

13. A power system (42), wherein, It includes a first power end (43), a second power end (44), a third power end (45), and a clutch (1) as described in any one of claims 1-12, which is connected to the first power end (43), the second power end (44), and the third power end (45) respectively.

14. The power system (42) according to claim 13, wherein, The first power end (43) is connected to the third power connection unit (4), the second power end (44) is connected to the second power connection unit (3), and the third power end (45) is connected to the first power connection unit (2).

15. The power system (42) according to claim 13, wherein, It also includes an engine (13) connected to the first power end (43).

16. The power system (42) according to claim 15, wherein, The engine (13) is coaxial with or geared to the first power end (43).

17. The power system (42) according to claim 13, wherein, It also includes a generator (14) connected to the second power end (44).

18. The power system (42) according to claim 17, wherein, The generator (14) is coaxial with or geared to the second power end (44).

19. The power system (42) according to claim 13, wherein, The third power end (45) is the power output end.

20. A vehicle, wherein, Includes the clutch (1) as described in any one of claims 1-12, or the power system (42) as described in any one of claims 13-19.

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