Hybrid power gearbox and hybrid power system

Abstract

The utility model relates to a hybrid power gearbox and a hybrid power system, and relates to the field of vehicles, the hybrid power gearbox comprises a first gear set, a second gear set, a third gear set, a gear, a first claw clutch and a second claw clutch; when the first claw clutch is connected with the first gear set, the first claw clutch is used for transmitting power of the engine to wheels at a first engine gear so as to drive the vehicle. When the second claw clutch is connected with the second gear set, the second claw clutch is used for transmitting the power of the engine to wheels at a second engine gear so as to drive the vehicle. When the second claw-shaped clutch is connected with the gear, the second claw-shaped clutch is used for transmitting the power of the engine to wheels in a third engine gear so as to drive the vehicle. According to the technical scheme, the engine can select to work under the three-speed gear through a small number of gear sets.

Description

Technical Field

[0001] This disclosure relates to the field of vehicles, and more specifically, to a hybrid transmission and a hybrid power system. Background Technology

[0002] With the development of the automotive industry and the increasing emphasis on energy conservation and environmental protection, the market share of dual-motor hybrid transmissions is gradually increasing. In existing technologies, dual-motor hybrid transmissions with fewer gears may result in poor vehicle power and user experience; while dual-motor hybrid transmissions with multiple gears require a large number of gears or gear sets for gear switching, leading to a larger size and weight of the hybrid transmission. In summary, providing a hybrid transmission that uses fewer gear sets and can achieve multiple gear switching is an urgent technical problem to be solved. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a hybrid power transmission and a hybrid power system.

[0004] According to a first aspect of the present disclosure, a hybrid power transmission is provided, applied to a vehicle, wherein the vehicle's engine is connected to the hybrid power transmission, and the hybrid power transmission includes: a first gear set, a second gear set, a third gear set, a gear, a first claw clutch, and a second claw clutch.

[0005] When the first claw-shaped clutch engages with the first gear set, it is used to transmit the power of the engine to the wheels in the first engine gear to drive the vehicle.

[0006] When the second claw clutch engages with the second gear set, it is used to transmit the power of the engine to the wheels in the second engine gear to drive the vehicle.

[0007] When the second claw clutch engages with the gear, it is used to transmit the power of the engine to the wheels in the third engine gear to drive the vehicle.

[0008] Optionally, the hybrid transmission includes: a drive motor and a third gear set;

[0009] The first gear set, the second gear set, the gear, and the third gear set are sequentially disposed between the drive motor and the wheel of the vehicle; the first claw clutch is disposed between the first gear set and the second gear set, and the second claw clutch is disposed between the third gear set and the second gear set;

[0010] The first gear set, the second gear set, the gear, and the third gear set are used to transmit the power generated by the engine and / or the drive motor to the wheels.

[0011] Optionally, the vehicle further includes a generator, a transmission mechanism, and a power battery;

[0012] The hybrid engine assembly of the vehicle includes: a generator, a transmission mechanism, and an engine, wherein the generator and the transmission mechanism are mounted on the engine; or, the hybrid transmission includes the generator and the transmission mechanism.

[0013] The transmission mechanism is used to transmit the power generated by the engine to the generator, so that the generator can supply power to the power battery;

[0014] The power battery is used to supply power to the drive motor, so that the drive motor can work to drive the vehicle.

[0015] Optionally, the engine includes an engine output shaft, and the hybrid power transmission further includes: a transmission input shaft, a transmission output shaft, and a transmission intermediate shaft, wherein the transmission input shaft and the transmission output shaft are coaxial;

[0016] The engine output shaft passes sequentially through the transmission mechanism and the generator and is connected to the first end of the vehicle's torsional shock absorber; the first gear set is connected to the drive motor.

[0017] The first end of the gearbox input shaft is connected to the second end of the torsional damper, and the second end of the gearbox input shaft is connected to the first end of the gearbox output shaft; between the torsional damper and the first end of the gearbox output shaft, the first gear set, the first claw clutch, the second gear set, and the second claw clutch are sequentially arranged on the gearbox input shaft; the gear and the third gear set are sequentially arranged on the gearbox input shaft;

[0018] The intermediate shaft of the gearbox is parallel to the output shaft of the gearbox, and the first gear set, the second gear set, and the third gear set pass through the intermediate shaft of the gearbox in sequence; the intermediate shaft of the gearbox is used to transmit the power generated by the engine and / or the drive motor to the wheels.

[0019] Optionally, when the vehicle's driving mode is pure electric drive mode, the engine and the generator are not working, and the drive motor is working; the first claw clutch is disengaged from the first gear set, and the second claw clutch is disengaged from the second gear set and the gear, so that the vehicle is driven by the drive motor.

[0020] Optionally, when the vehicle's drive mode is a series drive mode, the engine operates, the drive motor operates, and the generator charges the vehicle's power battery under the drive of the engine; the first claw clutch disengages from the first gear set, and the second claw clutch disengages from the second gear set and the gear, so as to drive the vehicle through the drive motor.

[0021] Optionally, when the vehicle's driving mode is pure engine drive mode, the engine operates and the generator does not operate, or the generator charges the vehicle's power battery under the drive of the engine and the drive motor does not operate.

[0022] The first claw clutch engages with the first gear set, and the second claw clutch disengages from the second gear set and the gears to drive the vehicle through the first engine gear position of the engine;

[0023] Alternatively, the first claw clutch disengages from the first gear set, and the second claw clutch engages with the second gear set to drive the vehicle through the second engine gear position of the engine;

[0024] Alternatively, the first claw clutch disengages from the first gear set, and the second claw clutch engages with the gears to drive the vehicle via the third engine gear.

[0025] Optionally, when the vehicle's driving mode is parallel drive mode, the engine operates, the generator does not operate, and the drive motor operates; the first claw clutch engages with the first gear set, and the second claw clutch disengages from the second gear set and the gear, so that the vehicle is driven jointly by the engine and the drive motor;

[0026] Alternatively, the engine is running, the generator is not running, and the drive motor is running; the first claw clutch is disengaged from the first gear set, and the second claw clutch is engaged with the second gear set or with the gear, so that the vehicle is driven by the engine and the drive motor together.

[0027] Optionally, when the vehicle's driving mode is the parking power generation mode, the engine operates, and the generator charges the vehicle's power battery under the drive of the engine, while the drive motor does not operate; the first claw clutch is disengaged from the first gear set, and the second claw clutch is disengaged from the second gear set and from the gear.

[0028] When the vehicle's driving mode is energy recovery mode, the generator and / or the drive motor charge the power battery under the actuation of the vehicle's braking system.

[0029] Specifically, when the first claw clutch is disengaged from the first gear set, and the second claw clutch 62 is disengaged from the second gear set and the gear, energy is recovered through the drive motor;

[0030] When the first claw clutch is disengaged from the first gear set and the second claw clutch is engaged with the gear, energy is recovered through the generator;

[0031] Energy recovery is performed via the generator when the first claw clutch is engaged with the first gear set and the second claw clutch is disengaged from the second gear set and the gear, or when the first claw clutch is disengaged from the first gear set and the second claw clutch is engaged with the second gear set or the gear, or energy recovery is performed via the generator and the drive motor.

[0032] Optionally, the hybrid transmission further includes: at least one other gear set and at least one other claw clutch;

[0033] The at least one other gear set and the at least one other claw clutch are connected in parallel with the gear, the first claw clutch and the second claw clutch on the output shaft of the transmission, and the at least one other gear set is connected in parallel with the first gear set and the second gear set on the intermediate shaft of the transmission.

[0034] According to a second aspect of the present disclosure, a hybrid power system is provided, the hybrid power system including an engine, a power battery, and a hybrid power transmission as described in the first aspect of the present disclosure.

[0035] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0036] In the above technical solution, a hybrid power transmission is provided for use in a vehicle. The hybrid power transmission includes: a first gear set, a second gear set, a third gear set, a gear, a first claw clutch, and a second claw clutch. When the first claw clutch engages with the first gear set, it transmits the engine's power to the wheels in a first engine gear to drive the vehicle. When the second claw clutch engages with the second gear set, it transmits the engine's power to the wheels in a second engine gear to drive the vehicle. When the second claw clutch engages with the gear, it transmits the engine's power to the wheels in a third engine gear to drive the vehicle. Through this technical solution, it is possible to allow the engine to operate in three gears using a relatively small number of gear sets.

[0037] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment.

[0040] Figure 2 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment.

[0041] Figure 3 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment.

[0042] Figure 4 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0043] Figure 5 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0044] Figure 6 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0045] Figure 7 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0046] Figure 8 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0047] Figure 9This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0048] Figure 10 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0049] Figure 11 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0050] Figure 12 This is a schematic diagram of the power transmission route of a hybrid power transmission provided in an exemplary embodiment.

[0051] Figure 13 This is a schematic diagram of a hybrid power system provided in an exemplary embodiment.

[0052] Figure 14 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment.

[0053] Figure 15 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment.

[0054] Explanation of reference numerals in the attached figures

[0055] 10-Engine, 11-Engine output shaft, 20-Torsion damper, 30-Generator, 31-Gearbox input shaft, 32-Gearbox output shaft, 33-Gearbox intermediate shaft, 61-First claw clutch, 62-Second claw clutch, 63-Third claw clutch, 51-First gear set, 52-Second gear set, 53-Third gear set, 54-Gear, 53'-Sixth gear set, 54'-Seventh gear set, 40-Drive motor, 70-Transmission mechanism, 71-Planetary gear set, 72-Gear mechanism, 721-Fourth gear set, 722-Drive shaft, 723-Fifth gear set, 80-Power battery. Detailed Implementation

[0056] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0057] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0058] Figure 1 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment, applied to a vehicle, such as... Figure 1 As shown, the vehicle's engine 10 is connected to the hybrid transmission, which includes: a first gear set 51, a second gear set 52, a third gear set 53, a gear 54, a first claw clutch 61, and a second claw clutch 62.

[0059] When the first claw clutch 61 engages with the first gear set 51, it is used to transmit the power of the engine 10 to the wheels in the first engine gear to drive the vehicle.

[0060] When the second claw clutch 62 engages with the second gear set 52, it is used to transmit the power of the engine 10 to the wheels in the second engine gear to drive the vehicle.

[0061] When the second claw clutch 62 engages with the gear 54, it is used to transmit the power of the engine 10 to the wheels in the third engine gear to drive the vehicle.

[0062] In the above technical solution, a hybrid power transmission is provided for use in a vehicle. The hybrid power transmission includes: a first gear set, a second gear set, a third gear set, a gear, a first claw clutch, and a second claw clutch. When the first claw clutch engages with the first gear set, it transmits the engine's power to the wheels in a first engine gear to drive the vehicle. When the second claw clutch engages with the second gear set, it transmits the engine's power to the wheels in a second engine gear to drive the vehicle. When the second claw clutch engages with the gear, it transmits the engine's power to the wheels in a third engine gear to drive the vehicle. Through this technical solution, it is possible to allow the engine to operate in three gears using a relatively small number of gear sets.

[0063] Optionally, such as Figure 1 As shown, the hybrid transmission includes: a drive motor 40 and a third gear set 53;

[0064] The first gear set 51, the second gear set 52, the gear 54 and the third gear set 53 are sequentially arranged between the drive motor 40 and the wheel of the vehicle; the first claw clutch 61 is arranged between the first gear set 51 and the second gear set 52, and the second claw clutch 62 is arranged between the third gear set 53 and the second gear set 52.

[0065] The first gear set 51, the second gear set 52, the gear 54 and the third gear set 53 are used to transmit the power generated by the engine 10 and / or the drive motor 40 to the wheel.

[0066] Optionally, such as Figure 1 As shown, the vehicle also includes a generator 30, a transmission mechanism 70, and a power battery 80;

[0067] The hybrid engine assembly of the vehicle includes: a generator 30, a transmission mechanism 70 and an engine 10, wherein the generator 30 and the transmission mechanism 70 are mounted on the engine 10; or, the hybrid transmission includes the generator 30 and the transmission mechanism 70.

[0068] The transmission mechanism 70 is used to transmit the power generated by the engine to the generator 30 so that the generator can supply power to the power battery 80;

[0069] The power battery 80 is used to supply power to the drive motor 40 so that the drive motor can operate to drive the vehicle.

[0070] For example, in one possible embodiment, the hybrid engine assembly may include an engine 10, a generator 30, and a transmission mechanism 70, wherein the generator 30 and the transmission mechanism 70 may be disposed on the engine 10; in addition, the engine assembly may also include a power battery 80.

[0071] In one possible embodiment, the engine 10, generator 30, and transmission mechanism 70 can also be housed in a range extender, which is a combination of an engine and a generator that can provide additional electrical energy to the vehicle, thereby increasing the vehicle's driving range. In this range extender, the generator 30, transmission mechanism 70, and engine 10 are coaxial. Furthermore, the generator 30 and engine 10 share part or all of their housing, which helps to reduce the space occupied by the generator 30, transmission mechanism 70, and engine 10 in the vehicle. In summary, in the embodiments described in this disclosure, the generator 30, the transmission mechanism 70, the engine 10, and the gearbox can be individual components with a connection relationship. Alternatively, the generator 30 and the transmission mechanism 70 can be integrated with the engine 10, that is, the generator 30, the transmission mechanism 70, and the engine 10 together constitute a range extender. Or, the generator 30 and the transmission mechanism 70 can be integrated with the gearbox, that is, the generator 30 and the transmission mechanism 70 are disposed in the gearbox. When both the generator 30 and the drive motor 40 are disposed in the gearbox, it is beneficial for the oil cooling design of the generator and / or the drive motor.

[0072] In the above scenario, the hybrid transmission and Figure 1 The connection relationships and positions of the other components in the hybrid transmission shown can remain unchanged. That is, it can be understood that regardless of whether the transmission mechanism 70 and / or the generator 30 are located outside or inside the hybrid transmission, the positional relationships of the transmission mechanism 70 and the generator 30 relative to the other components of the hybrid transmission can refer to the above. Figure 1 The positional relationships are shown in the diagram. In summary, any changes in the position of some components of this hybrid transmission are simple modifications of the hybrid transmission disclosed herein. Furthermore, the power battery 80 can be installed in a location close to the hybrid transmission; this disclosure does not impose any restrictions on this.

[0073] Optionally, such as Figure 1 As shown, the engine 10 includes an engine output shaft 11, and the hybrid transmission also includes a transmission input shaft 31, a transmission output shaft 32, and a transmission intermediate shaft 33, wherein the transmission input shaft 31 and the transmission output shaft 32 are coaxial.

[0074] The engine output shaft 11 passes through the transmission mechanism 70 and the generator 30 in sequence and is connected to the first end of the torsional shock absorber 20 of the vehicle; the first gear set 51 is connected to the drive motor 40;

[0075] The first end of the gearbox input shaft 31 is connected to the second end of the torsional damper 20, and the second end of the gearbox input shaft 31 is connected to the first end of the gearbox output shaft 32; between the torsional damper 20 and the first end of the gearbox output shaft 32, the first gear set 51, the first claw clutch 61, the second gear set 52 and the second claw clutch 62 are sequentially arranged on the gearbox input shaft 31; the gear 54 and the third gear set 53 are sequentially arranged on the gearbox input shaft 31;

[0076] The intermediate shaft 33 of the gearbox is parallel to the output shaft 32 of the gearbox. The first gear set 51, the second gear set 52 and the third gear set 53 pass through the intermediate shaft 33 in sequence. The intermediate shaft 33 of the gearbox is used to transmit the power generated by the engine 10 and / or the drive motor 40 to the wheel.

[0077] For example, hybrid drive is a vehicle drive technology that utilizes both an engine and a drive motor as power sources. Under different driving conditions, the vehicle can flexibly use either the engine or the drive motor as needed, thereby achieving higher fuel efficiency and lower emissions. When the vehicle starts, it can be driven solely by the drive motor, avoiding fuel waste from the internal combustion engine at low speeds. During driving, when the vehicle reaches a designated speed, it can be driven by the engine or by a combination of the engine and the drive motor. Figure 1 Taking the hybrid transmission shown as an example, during vehicle operation, when the speed of the engine 10 and / or generator 30 is adjusted to match the speed of the drive motor 40, at least one of the first claw clutch 61 and the second claw clutch 62 can be engaged. Matching the speed of the engine 10 and / or generator 30 with the speed of the drive motor 40 can include ensuring that the speed difference between the engine 10 and / or generator 30 and the drive motor 40 is within a set speed difference range. Therefore, by adjusting the speed, the difference between the speed of the engine 10 and / or generator 30 and the drive motor 40 can be brought into this speed difference range, allowing the engine 10 to engage in vehicle driving at different gears.

[0078] Figure 2 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment, applied to a vehicle, such as... Figure 2 As shown, in Figure 1 Based on the hybrid transmission shown, the transmission mechanism 70 can be a planetary gear set 71, through which the power of the engine 10 can be transmitted to the generator 30, so that the generator 30 can charge the vehicle's power battery 80; wherein, the planetary gear set 71 can be connected to the generator 30 through the sun gear.

[0079] Figure 3 This is a structural diagram of a hybrid power transmission provided in an exemplary embodiment, applied to a vehicle, such as... Figure 3 As shown, in Figure 1 Based on the hybrid transmission shown, the transmission mechanism 70 can also be a gear mechanism 72, through which the power of the engine 10 can be transmitted to the generator 30, so that the generator 30 can charge the vehicle's power battery 80; wherein, the gear mechanism 72 includes a fourth gear set 721 and a fifth gear set 723, the fourth gear set 721 and the fifth gear set 723 are connected by a drive shaft 722, the drive shaft 722 is parallel to the transmission input shaft 31, and the gear mechanism 72 is connected to the generator 30 through the fifth gear set 723.

[0080] Optionally, for those using such Figures 1-3 The vehicle equipped with any of the hybrid transmissions shown in the embodiments can provide the vehicle with multiple driving modes, including but not limited to: pure electric drive mode, series drive mode, parallel drive mode, pure engine drive mode, and energy recovery mode. It is understood that this disclosure only describes relatively typical modes and does not fully cover all achievable modes.

[0081] Optionally, when the vehicle is in pure electric drive mode, the engine 10 and the generator 30 are not working, and the drive motor 40 is working; the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is disengaged from the second gear set 52 and the gear 54, so that the vehicle can be driven by the drive motor 40.

[0082] For example, with Figure 2 Taking the gearbox shown as an example, when the drive motor 40 drives the vehicle, the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is disengaged from both the second gear set 52 and the gear 54. The power transmission route of the drive motor 40 is as follows: Figure 4 As indicated by the middle arrow, the power battery 80 supplies power to the drive motor 40. The power generated by the drive motor 40 passes sequentially through the first gear set 51, the intermediate shaft 33 of the gearbox, and the third gear set 53 to the output shaft 32 of the gearbox, thereby transmitting the power provided by the drive motor 40 to the wheels of the vehicle. In summary, the drive motor 40 has one drive gear.

[0083] Optionally, when the vehicle's drive mode is a series drive mode, the engine 10 operates, the drive motor 40 operates, and the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10; the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is disengaged from the second gear set 52 and the gear 54, so that the vehicle can be driven by the drive motor 40.

[0084] For example, with Figure 2 Taking the transmission shown as an example, when the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10, the power transmission route of the engine 10 is as follows: Figure 5 As indicated by the middle arrow, the power generated by the engine 10 passes sequentially through the engine output shaft 11 and planetary gear set 71 to the generator 30, which then charges the power battery 80. In summary, with... Figure 2 Taking the transmission shown as an example, in series drive mode, the power transmission route of the engine 10 can be as follows: Figure 5 As shown by the middle arrow, the power transmission route of the drive motor 40 can be as follows: Figure 4 The direction indicated by the middle arrow.

[0085] For example, with Figure 3 Taking the transmission shown as an example, when the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10, the power transmission route of the engine 10 is as follows: Figure 6 As indicated by the middle arrow, the power generated by the engine 10 passes sequentially through the engine output shaft 11, the fourth gear set 721, the drive shaft 722, and the fifth gear set 723 to the generator 30, which then charges the power battery 80. In summary, with... Figure 3 Taking the transmission shown as an example, in series drive mode, the power transmission route of the engine 10 can be as follows: Figure 6 As shown by the middle arrow, the power transmission route of the drive motor 40 can be as follows: Figure 4 The direction indicated by the middle arrow.

[0086] Optionally, when the vehicle's driving mode is pure engine drive mode, the engine 10 operates and the generator 30 does not operate, or the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10, and the drive motor 40 does not operate.

[0087] The first claw clutch 61 engages with the first gear set 51, and the second claw clutch 62 disengages from the second gear set 52 and the gear 54, so as to drive the vehicle through the first engine gear of the engine 10;

[0088] Alternatively, the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is engaged with the second gear set 52 to drive the vehicle through the second engine gear of the engine 10.

[0089] Alternatively, the first claw clutch 61 may disengage from the first gear set 51, and the second claw clutch 62 may engage with the gear 54 to drive the vehicle through the third engine gear of the engine 10.

[0090] For example, with Figure 2 Taking the hybrid transmission shown as an example, when the engine 10 is driven in the first engine gear, if the generator 30 is not working, the first claw clutch 61 engages with the first gear set 51, and the second claw clutch 62 disengages from the second gear set 52 and the gear 54. The power transmission route of the engine 10 is as follows: Figure 7 As indicated by the middle arrow, the power generated by the engine 10 is transmitted sequentially through the engine output shaft 11, torsional damper 20, gearbox input shaft 31, first gear set 51, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and then transmitted to the wheels via the gearbox output shaft 32.

[0091] For example, with Figure 2 Taking the hybrid transmission shown as an example, when the engine 10 is driven by the second engine gear, if the generator 30 is not working, the first claw clutch 61 disengages from the first gear set 51, and the second claw clutch 62 engages with the second gear set 52. The power transmission route of the engine 10 is as follows: Figure 8 As indicated by the middle arrow, the power generated by the engine 10 is transmitted sequentially through the engine output shaft 11, torsional damper 20, gearbox input shaft 31, second gear set 52, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and then transmitted to the wheels via the gearbox output shaft 32.

[0092] For example, with Figure 2 Taking the hybrid transmission shown as an example, when the engine 10 is driven in the third engine gear, if the generator 30 is not working, the first claw clutch 61 disengages from the first gear set 51, and the second claw clutch 62 engages with the gear 54. The power transmission route of the engine 10 is as follows: Figure 9 As indicated by the middle arrow, the power generated by the engine 10 is transmitted sequentially through the engine output shaft 11, the torsional damper 20, the gearbox input shaft 31, and the gear 54 to the gearbox output shaft 32, and then transmitted to the wheels via the gearbox output shaft 32.

[0093] For example, in pure engine-driven mode, the generator 30 can be selected to operate or not operate based on the SOC (State of Charge) of the power battery 80. When the generator 30 operates, it charges the power battery 80. For instance, the generator 30 operates when the SOC of the power battery 80 is less than a certain threshold, and does not operate when the SOC of the power battery 80 is greater than the threshold. This disclosure does not limit the size of the threshold. Furthermore, if the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10, the power transmission route between the engine 10 and the generator 30 can be as follows: Figure 5 The power transmission route from engine 10 to generator 30 is shown in the direction of the middle arrow.

[0094] In summary, with Figure 3 Taking the hybrid transmission shown as an example, when the vehicle's driving mode is pure engine drive mode; if the generator 30 is not working: when the engine 10 is driven in the first gear, the power transmission route from the engine 10 to the wheels is the same as... Figure 7 The power transmission route of engine 10, as indicated by the middle arrow, is the same; when engine 10 is driven in second gear, the power transmission route from engine 10 to the wheels is the same as... Figure 8 The power transmission route of engine 10, as indicated by the middle arrow, is the same; when engine 10 is driven in third gear, the power transmission route from engine 10 to the wheels is the same as... Figure 9 The power transmission route of engine 10 is the same as that indicated by the middle arrow. Furthermore, if generator 30 charges the vehicle's power battery 80 under the drive of engine 10, the power transmission route between engine 10 and generator 30 can be as follows: Figure 6 The power transmission route from engine 10 to generator 30 is shown in the direction of the middle arrow.

[0095] Furthermore, it is understood that the first gear, second gear, and third gear of the engine 10 are used to distinguish the three gears of the engine 10, and not to indicate the relative size of the three gears of the engine 10.

[0096] Optionally, when the vehicle is in parallel drive mode, the engine 10 is working, the generator 30 is not working, and the drive motor 40 is working; the first claw clutch 61 engages with the first gear set 51, and the second claw clutch 62 disengages from the second gear set 52 and the gear 54, so that the vehicle is driven by the engine 10 and the drive motor 40 together.

[0097] Alternatively, the engine 10 is working, the generator 30 is not working, and the drive motor 40 is working; the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is engaged with the second gear set 52 or with the gear 54, so that the vehicle is driven by the engine 10 and the drive motor 40 together.

[0098] For example, the generator 30 not working can be understood as the generator 30 idling and not generating electricity. As can be seen from the above embodiments, the drive motor 40 of the hybrid transmission has one gear and the engine 10 has three gears. When the vehicle's driving mode is parallel drive mode, the engine 10 and the drive motor 40 can drive the vehicle simultaneously. Therefore, the parallel drive mode has three gears.

[0099] by Figure 2 Taking the hybrid transmission shown as an example, when the vehicle's driving mode is parallel drive mode, the engine 10 and the drive motor 40 jointly drive the vehicle.

[0100] When the hybrid transmission is driven by the first parallel gear, the first claw clutch 61 engages with the first gear set 51, and the second claw clutch 62 disengages from both the second gear set 52 and the gear 54. At this time, the power transmission route of the engine 10 and the drive motor 40 is as follows: Figure 10 As indicated by the middle arrow, the power generated by the engine 10 is sequentially transmitted through the engine output shaft 11, torsional damper 20, gearbox input shaft 31, first gear set 51, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and then transmitted to the wheels via the gearbox output shaft 32; the power generated by the drive motor 40 is sequentially transmitted through the first gear set 51, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and then transmitted to the wheels via the gearbox output shaft 32.

[0101] When the hybrid transmission is driven through the second parallel gear, the first claw clutch 61 disengages from the first gear set 51, and the second claw clutch 62 engages with the second gear set 52. At this time, the power transmission route between the engine 10 and the drive motor 40 is as follows: Figure 11 As indicated by the middle arrow, the power generated by the engine 10 passes sequentially through the engine output shaft 11, torsional damper 20, gearbox input shaft 31, second gear set 52, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and is then transmitted to the wheels via the gearbox output shaft 32; the power generated by the drive motor 40 passes sequentially through the first gear set 51, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and is then transmitted to the wheels via the gearbox output shaft 32.

[0102] When the hybrid transmission is driven through the third parallel gear, the first claw clutch 61 disengages from the first gear set 51, and the second claw clutch 62 engages with the gear 54. At this time, the power transmission route between the engine 10 and the drive motor 40 is as follows: Figure 12 As indicated by the middle arrow, the power generated by the engine 10 is transmitted sequentially through the engine output shaft 11, torsional damper 20, gearbox input shaft 31, gear 54 to the gearbox output shaft 32, and then to the wheels via the gearbox output shaft 32; the power generated by the drive motor 40 is transmitted sequentially through the first gear set 51, gearbox intermediate shaft 33, and third gear set 53 to the gearbox output shaft 32, and then to the wheels via the gearbox output shaft 32.

[0103] In summary, with Figure 3 Taking the hybrid transmission shown as an example, when the vehicle's driving mode is parallel drive mode; if the generator 30 is not working: when the hybrid transmission drives through the first parallel gear, the power transmission route is... Figure 10 The power transmission route indicated by the middle arrow is the same; when this hybrid transmission drives through the second parallel gear, the power transmission route is the same as... Figure 11 The power transmission route indicated by the middle arrow is the same; when this hybrid transmission drives through the third parallel gear, the power transmission route is the same as... Figure 12 The power transmission routes indicated by the middle arrows are the same.

[0104] Furthermore, in another possible embodiment, when the vehicle's driving mode is parallel drive mode, the engine 10 can also drive the generator 30 to charge the power battery 80. When the generator 30 charges the power battery 80, the power transmission route between the engine 10 and the generator 30 can be referenced... Figure 5 or Figure 6 The direction indicated by the middle arrow will not be elaborated further here.

[0105] Optionally, when the vehicle's driving mode is the parking power generation mode, the engine 10 operates, and the generator 30 charges the vehicle's power battery 80 under the drive of the engine 10, while the drive motor 40 does not operate; the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is disengaged from the second gear set 52 and from the gear 54.

[0106] For example, when the vehicle's driving mode is parking power generation mode, Figure 2 Taking the hybrid transmission shown as an example, the power transmission route between the engine 10 and the generator 30 can be as follows: Figure 5 The power transmission route from engine 10 to generator 30 is shown in the direction of the middle arrow. Figure 3Taking the hybrid transmission shown as an example, the power transmission route between the engine 10 and the generator 30 can be as follows: Figure 6 The power transmission route from engine 10 to generator 30 is shown in the direction of the middle arrow.

[0107] Optionally, in such Figure 2 and Figure 3 In the hybrid transmission shown, when the vehicle's driving mode is energy recovery mode, the generator 30 and / or the drive motor 40 charge the power battery 80 under the action of the vehicle's braking system.

[0108] When the first claw clutch 61 is disengaged from the first gear set 51, and the second claw clutch 62 is disengaged from the second gear set 52 and the gear 54, energy is recovered through the drive motor 40.

[0109] When the first claw clutch 61 is disengaged from the first gear set 51 and the second claw clutch 62 is engaged with the gear 54, energy is recovered through the generator 30.

[0110] When the first claw clutch 61 is engaged with the first gear set 51 and the second claw clutch 62 is disengaged from the second gear set 52 and the gear 54, or when the first claw clutch 61 is disengaged from the first gear set 51 and the second claw clutch 62 is engaged with the second gear set 52 or the gear 54, energy recovery is performed through the generator 30, or through the generator 30 and the drive motor 40.

[0111] For example, in the embodiments described in this disclosure, when the vehicle starts, the wheels are driven by the drive motor in either a pure electric drive mode or a series drive mode. After the vehicle starts, depending on the actual vehicle speed, the speed control of the generator 30 can be used to engage the first claw clutch 61 or the second claw clutch 62, allowing the engine 10 to output power to drive the wheels in a pure engine drive mode; alternatively, the speed control of the generator 30 can also be used to engage the first claw clutch 61 or the second claw clutch 62, allowing the engine 10 and the drive motor 40 to simultaneously output power to drive the wheels in a parallel drive mode. In summary, this hybrid transmission can achieve single-speed drive for the drive motor and three-speed drive for the engine, enabling uninterrupted engine power output shifting, and can also switch between pure electric, series, parallel, and pure engine drive modes. In summary, in the various embodiments described in this disclosure, by engaging the first claw clutch or the second claw clutch with the corresponding gear set or gear, it is possible to drive the vehicle through multiple gears in different driving modes; by using the first claw clutch 61, it is possible to couple the engine input shaft 11 and the gearbox input shaft 31, so that the engine 10 and the drive motor 40 output power along the same path, and can meet the needs of the vehicle for heavy-load climbing under low power conditions.

[0112] In the above technical solution, a hybrid power transmission is provided for use in a vehicle. The hybrid power transmission includes: a first gear set, a second gear set, a third gear set, a gear, a first claw clutch, and a second claw clutch. When the first claw clutch engages with the first gear set, it transmits the engine's power to the wheels in a first engine gear to drive the vehicle. When the second claw clutch engages with the second gear set, it transmits the engine's power to the wheels in a second engine gear to drive the vehicle. When the second claw clutch engages with the gear, it transmits the engine's power to the wheels in a third engine gear to drive the vehicle. Through this technical solution, it is possible to allow the engine to operate in three gears using a relatively small number of gear sets.

[0113] Figure 13 This is a structural diagram of a hybrid power system provided in an exemplary embodiment, such as... Figure 13 As shown, the hybrid power system includes: an engine, a power battery, and as shown in the diagram. Figures 1 to 12 In any of the hybrid transmissions shown, both the engine and the power battery are connected to the hybrid transmission. The connection relationship between the engine, the power battery, and the hybrid transmission has been described in the previous embodiments and will not be repeated here.

[0114] In one possible implementation, this disclosure also provides a vehicle comprising the above-described components. Figure 13 The hybrid power system shown in the embodiment.

[0115] Optionally, the hybrid transmission also includes: at least one additional gear set and at least one additional claw clutch;

[0116] The at least one other gear set and the at least one other claw clutch are connected in parallel with the gear 54, the first claw clutch 61 and the second claw clutch 62 on the output shaft 32 of the transmission, and the at least one other gear set is connected in parallel with the first gear set 51 and the second gear set 52 on the intermediate shaft 33 of the transmission.

[0117] Wherein, at least one other gear set refers to a gear set added in addition to the first gear set 51, the second gear set 52, and the gear 54 mentioned above. The at least one other claw clutch refers to a claw clutch added in addition to the first claw clutch 61 and the second claw clutch 62. By adding at least one gear set and at least one claw clutch in parallel on the output shaft 32 of the hybrid transmission, multi-gear switching of the hybrid transmission can be achieved. In one possible embodiment, such as... Figure 14 As shown, the original third gear set 53 is replaced with the sixth gear set 53' on the gearbox output shaft 32, a seventh gear set 54' is added, and a third claw clutch 63 is added between the sixth gear set 53' and the seventh gear set 54'. The gears 54, 53', 63', and 54' are arranged sequentially on the gearbox output shaft 32. Furthermore, the first gear set 51, 52, 53', and 54' are arranged sequentially on the gearbox intermediate shaft 33. In summary, as... Figure 14 The hybrid transmission shown has an operating mode similar to or the same as that described in the above embodiments, and will not be repeated here.

[0118] In one possible implementation, the hybrid power transmission described in the above embodiments, wherein the torsional damper 20 connected to the engine output shaft 11 and the transmission input shaft 31 can be located as follows: Figure 15 The location of the torsional damper 20 indicates that it does not affect the drive mode or power transmission path of the hybrid transmission. Furthermore, in the embodiments described above, the generator 30 and transmission mechanism 70 can be co-located with the engine 10 in the vehicle's range extender, or the generator 30 and transmission mechanism 70 can be located within the hybrid transmission. In summary, in the above scenarios, the hybrid transmission and... Figures 1-3The connection relationships and positions of the other components in the hybrid transmission shown can remain unchanged. That is, it can be understood that regardless of whether the transmission mechanism 70 and / or the generator 30 are located outside or inside the hybrid transmission, the positional relationships of the transmission mechanism 70 and the generator 30 relative to the other components of the hybrid transmission can refer to the above. Figures 1-3 The positional relationships are shown in the diagram. In summary, any changes in the positions of the components of this hybrid power transmission are simple modifications of the hybrid power transmission disclosed herein.

[0119] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0120] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0121] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A hybrid power transmission, characterized in that, Applied to a vehicle, the vehicle's engine (10) is connected to the hybrid transmission, the hybrid transmission comprising: a first gear set (51), a second gear set (52), a third gear set (53), a gear (54), a first claw clutch (61), and a second claw clutch (62); When the first claw clutch (61) engages with the first gear set (51), it is used to transmit the power of the engine (10) to the wheels in the first engine gear to drive the vehicle. When the second claw clutch (62) engages with the second gear set (52), it is used to transmit the power of the engine (10) to the wheels in the second engine gear to drive the vehicle; When the second claw clutch (62) engages with the gear (54), it is used to transmit the power of the engine (10) to the wheels in the third engine gear to drive the vehicle.

2. The hybrid power transmission according to claim 1, characterized in that, The hybrid transmission includes: a drive motor (40) and a third gear set (53); The first gear set (51), the second gear set (52), the gear (54) and the third gear set (53) are sequentially disposed between the drive motor (40) and the wheel of the vehicle; the first claw clutch (61) is disposed between the first gear set (51) and the second gear set (52), and the second claw clutch (62) is disposed between the third gear set (53) and the second gear set (52); The first gear set (51), the second gear set (52), the gear (54) and the third gear set (53) are used to transmit the power generated by the engine (10) and / or the drive motor (40) to the wheels.

3. The hybrid power transmission according to claim 2, characterized in that, The vehicle also includes a generator (30), a transmission mechanism (70), and a power battery (80); The hybrid engine assembly of the vehicle includes a generator (30), a transmission mechanism (70), and an engine (10), wherein the generator (30) and the transmission mechanism (70) are mounted on the engine (10); or, the hybrid transmission includes the generator (30) and the transmission mechanism (70). The transmission mechanism (70) is used to transmit the power generated by the engine to the generator (30) so that the generator supplies power to the power battery (80); The power battery (80) is used to supply power to the drive motor (40) so that the drive motor can operate to drive the vehicle.

4. The hybrid power transmission according to claim 3, characterized in that, The engine (10) includes an engine output shaft (11), and the hybrid transmission further includes a transmission input shaft (31), a transmission output shaft (32), and a transmission intermediate shaft (33), wherein the transmission input shaft (31) and the transmission output shaft (32) are coaxial; The engine output shaft (11) passes through the transmission mechanism (70) and the generator (30) in sequence and is connected to the first end of the torsional damper (20) of the vehicle; the first gear set (51) is connected to the drive motor (40); The first end of the gearbox input shaft (31) is connected to the second end of the torsional damper (20), and the second end of the gearbox input shaft (31) is connected to the first end of the gearbox output shaft (32); between the torsional damper (20) and the first end of the gearbox output shaft (32), the first gear set (51), the first claw clutch (61), the second gear set (52) and the second claw clutch (62) are sequentially arranged on the gearbox input shaft (31); the gear (54) and the third gear set (53) are sequentially arranged on the gearbox input shaft (31); The intermediate shaft (33) of the gearbox is parallel to the output shaft (32) of the gearbox, and the first gear set (51), the second gear set (52) and the third gear set (53) pass through the intermediate shaft (33) in sequence; the intermediate shaft (33) of the gearbox is used to transmit the power generated by the engine (10) and / or the drive motor (40) to the wheels.

5. The hybrid power transmission according to claim 4, characterized in that, When the vehicle's driving mode is pure electric drive mode, the engine (10) and the generator (30) are not working, and the drive motor (40) is working; the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is disengaged from the second gear set (52) and the gear (54) so ​​that the vehicle can be driven by the drive motor (40).

6. The hybrid power transmission according to claim 4, characterized in that, When the vehicle is in series drive mode, the engine (10) operates, the drive motor (40) operates, and the generator (30) charges the vehicle's power battery (80) under the drive of the engine (10); the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is disengaged from the second gear set (52) and the gear (54) to drive the vehicle through the drive motor (40).

7. The hybrid power transmission according to claim 4, characterized in that, When the vehicle's driving mode is pure engine drive mode, the engine (10) works and the generator (30) does not work, or the generator (30) charges the vehicle's power battery (80) under the drive of the engine (10) and the drive motor (40) does not work. The first claw clutch (61) engages with the first gear set (51), and the second claw clutch (62) disengages from the second gear set (52) and the gear (54) to drive the vehicle through the first engine gear of the engine (10); Alternatively, the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is engaged with the second gear set (52) to drive the vehicle through the second engine gear of the engine (10); Alternatively, the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is engaged with the gear (54) to drive the vehicle through the third engine gear of the engine (10).

8. The hybrid power transmission according to claim 4, characterized in that, When the vehicle is in parallel drive mode, the engine (10) is working, the generator (30) is not working, and the drive motor (40) is working; the first claw clutch (61) engages with the first gear set (51), and the second claw clutch (62) disengages from the second gear set (52) and the gear (54) so ​​that the vehicle is driven by the engine (10) and the drive motor (40) together; Alternatively, the engine (10) is working, the generator (30) is not working, and the drive motor (40) is working; the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is engaged with the second gear set (52) or with the gear (54) to drive the vehicle together through the engine (10) and the drive motor (40).

9. The hybrid power transmission according to claim 4, characterized in that, When the vehicle's driving mode is the parking power generation mode, the engine (10) operates, and the generator (30) charges the vehicle's power battery (80) under the drive of the engine (10), while the drive motor (40) does not operate; the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is disengaged from the second gear set (52) and from the gear (54); When the vehicle's driving mode is energy recovery mode, the generator (30) and / or the drive motor (40) charge the power battery (80) under the drive of the vehicle's braking system. When the first claw clutch (61) is disengaged from the first gear set (51), and the second claw clutch (62) is disengaged from the second gear set (52) and from the gear (54), energy is recovered through the drive motor (40). When the first claw clutch (61) is disengaged from the first gear set (51) and the second claw clutch (62) is engaged with the gear (54), energy is recovered through the generator (30); Energy is recovered via the generator (30) when the first claw clutch (61) is engaged with the first gear set (51) and the second claw clutch (62) is disengaged from the second gear set (52) and the gear (54), or when the first claw clutch (61) is disengaged from the first gear set (51) and the second claw clutch (62) is engaged with the second gear set (52) or the gear (54), or energy is recovered via the generator (30) and the drive motor (40).

10. The hybrid power transmission according to claim 4, characterized in that, The hybrid transmission also includes: at least one other gear set and at least one other claw-type clutch; The at least one other gear set and the at least one other claw clutch are connected in parallel with the gear (54), the first claw clutch (61) and the second claw clutch (62) on the output shaft (32) of the gearbox, and the at least one other gear set is connected in parallel with the first gear set (51) and the second gear set (52) on the intermediate shaft (33) of the gearbox.

11. A hybrid power system, characterized in that, include: The engine (10), the power battery (80), and the hybrid transmission according to any one of claims 1-10.

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