Hybrid power system and vehicle with same
By designing a device for engaging and disengaging the engine and the first electric motor in a hybrid power system, the problem of energy consumption caused by the engine driving the generator is solved, achieving efficient energy utilization and improved economy under different operating conditions.
Patent Information
- Application Number
- CN202520007115.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In existing technologies, when an engine drives a generator to rotate together during operation, it consumes unnecessary energy, resulting in poor economic efficiency.
By designing a device for engaging and disengaging the first motor, engine, and first gear in a hybrid power system, the engine can be disengaged from the first motor and engaged with the gear, thus eliminating inertial load and reducing energy consumption.
It improves the economy of the hybrid power system by switching between multiple modes to optimize energy utilization under different operating conditions, reduce energy consumption, and improve fuel efficiency and power performance.
Smart Images
Figure CN223520623U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field especially is related to a hybrid power system and vehicle with it. BACKGROUND
[0002] In the related art, the engine drives the generator to rotate together during operation, and driving the engine to rotate or driving the generator to decelerate to stop will consume unnecessary energy, resulting in poor economy. SUMMARY
[0003] The utility model discloses at least solve one of the technical problems in the prior art. To this end, the utility model provides a hybrid power system, which can eliminate the inertial load of the first motor, reduce energy consumption and improve economy when the engine and the first motor are disconnected and combined with the first gear.
[0004] The utility model further provides a vehicle, which comprises the hybrid power system described above.
[0005] The hybrid power system according to the utility model embodiment comprises: a main reducer connected with a power output end; a first gear in transmission connection with the main reducer, the first gear being provided with a first combination device; a first drive system comprising a first motor and an engine, one of the first motor and the engine being provided with a second combination device, the second combination device being oppositely arranged and spaced apart from the first combination device, the other of the first motor and the engine being provided with a third combination device, the third combination device being located between the first combination device and the second combination device, and the third combination device being selectively combined with one of the first combination device and the second combination device or separated from the first combination device and the second combination device.
[0006] The hybrid power system according to the utility model embodiment can realize the combination and disconnection between the first motor, the engine and the first gear by allowing the third combination device to be combined with one of the first combination device and the second combination device or separated from the first combination device and the second combination device, so that the engine can realize power output without driving the first motor to rotate together when the engine and the first motor are disconnected and combined with the first gear, the inertial load of the first motor can be eliminated, the energy consumption of the hybrid power system can be reduced, and the economy of the hybrid power system can be improved.
[0007] In addition, the hybrid power system according to the utility model can also have the following additional technical features:
[0008] In some embodiments, the third coupling device is connected with the first motor or the engine through a drive shaft, the drive shaft is arranged in the first gear, and the third coupling device is movable between the first coupling device and the second coupling device.
[0009] In some embodiments, the hybrid power system further comprises a transmission gear set, the transmission gear set comprises a first output gear connected with an output end of the engine and a second output gear engaged with the first output gear, and the second coupling device or the third coupling device is connected with the second output gear.
[0010] In some embodiments, the hybrid power system further comprises a second drive system, the first motor is connected with the second drive system for supplying power to the second drive system, and an output end of the second drive system is connected with the input gear of the main reducer.
[0011] In some embodiments, the second drive system comprises a second motor and a battery, the second motor, the battery and the first motor are connected two by two, and a motor shaft of the second motor is connected with the input gear of the main reducer.
[0012] In some embodiments, the motor shaft of the second motor is parallel and spaced apart from the power output shaft.
[0013] In some embodiments, the axis of the power output shaft and the axis of the motor shaft of the second motor are collinear, and the power output shaft is arranged in the second motor and the motor shaft of the second motor.
[0014] In some embodiments, the main reducer comprises a second gear configured as the input gear and engaged with the first gear, a third gear engaged with the second gear, an intermediate shaft arranged on the third gear and rotating synchronously with the third gear, a fourth gear connected with the intermediate shaft and rotating synchronously with the intermediate shaft, and a fifth gear engaged with the fourth gear for driving the power output end to rotate.
[0015] In some embodiments, the hybrid power system further comprises a differential mechanism connected with an output end of the main reducer for driving the power output end to rotate.
[0016] The utility model further provides a vehicle with the above-mentioned embodiments.
[0017] According to the vehicle of the embodiment of the utility model, through the hybrid power system, through make third combination device and first combination device and second combination device in one combination or with first combination device and second combination device all separate, can realize first motor, engine and first gear wheel between the combination and the separation, make in engine and first motor separate and with first gear wheel combination, engine need not drive first motor together rotation can realize power output, can eliminate first motor's inertia load, reduce hybrid power system's energy consumption, further improve hybrid power system's economy.
[0018] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:
[0020] Figure 1 It is the structure schematic view of hybrid power system according to the utility model first embodiment;
[0021] Figure 2 It is the structure schematic view of hybrid power system according to the utility model second embodiment;
[0022] Figure 3 It is the structure schematic view of hybrid power system according to the utility model third embodiment;
[0023] Figure 4 It is the structure schematic view of hybrid power system according to the utility model fourth embodiment.
[0024] Reference Signs:
[0025] 100, hybrid power system;101, wheel;102, power output shaft;
[0026] 1, main reducer;11, input gear;12, third gear;13, intermediate shaft;14, fourth gear;15, fifth gear;
[0027] 2, first gear;21, first combination device;
[0028] 3, first drive system;31, first motor;32, engine;33, second combination device;34, third combination device;341, drive shaft;
[0029] 4, transmission gear set;41, first output gear;42, second output gear;
[0030] 5. Second drive system; 51. Second motor; 511. Motor shaft; 52. Battery;
[0031] 6. Differential. DETAILED DESCRIPTION
[0032] Embodiments of the present application will be described in detail below with reference to the drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.
[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0034] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0035] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0036] The hybrid power system 100 according to the embodiments of the present application will be described below with reference to the drawings.
[0037] As shown in Figure 1 The hybrid power system 100 according to the embodiments of the present application includes a main reducer 1, a first gear 2 and a first drive system 3.
[0038] Specifically, referring to the accompanying drawings Figure 1 illustrated, the main reducer 1 is connected with the power output end, the first gear 2 is drivingly connected with the main reducer 1, the first gear 2 has a first coupling device 21, the first drive system 3 includes a first motor 31 and an engine 32, one of the first motor 31 and the engine 32 has a second coupling device 33, the second coupling device 33 is oppositely arranged and spaced apart from the first coupling device 21, the other of the first motor 31 and the engine 32 has a third coupling device 34, the third coupling device 34 is located between the first coupling device 21 and the second coupling device 33, and the third coupling device 34 is selectively coupled with one of the first coupling device 21 and the second coupling device 33 or separated from the first coupling device 21 and the second coupling device 33. It should be noted that the first motor 31 can be a generator or a driving motor.
[0039] Alternatively, the first motor 31 can have the second coupling device 33, and the engine 32 can have the third coupling device 34; or the engine 32 can have the second coupling device 33, and the first motor 31 can have the third coupling device 34.
[0040] Further, referring to the accompanying drawings Figure 1 illustrated, the hybrid power system 100 further includes a second drive system 5, the first motor 31 is connected with the second drive system 5 for supplying power to the second drive system 5, and an output end of the second drive system 5 is drivingly connected with the main reducer 1. When the first motor 31 is running, the second drive system 5 can be powered to drive the main reducer 1 to run; when the first motor 31 is not running, the second drive system 5 can directly drive the main reducer 1 to run.
[0041] When the second coupling device 33 is arranged on the first motor 31 and the third coupling device 34 is arranged on the engine 32, as Figure 1 and Figure 2 illustrated, when the third coupling device 34 is coupled with the first coupling device 21, the engine 32 is separated from the first motor 31 and can drive the first gear 2 to rotate, because the first gear 2 is engaged with the input gear 11 of the main reducer 1, thereby driving the main reducer 1 to run, and further transmitting power to the power output end; when the third coupling device 34 is coupled with the second coupling device 33, the engine 32 is coupled with the first motor 31, and the engine 32 can drive the first motor 31 to run, so that the first motor 31 supplies power to the second drive system 5 to drive the main reducer 1 to run, at this time, the first gear 2 is driven by the main reducer 1 to rotate; when the third coupling device 34 is separated from the first coupling device 21 and the second coupling device 33, the engine 32 cannot drive the first gear 2 to rotate nor drive the first motor 31 to run.
[0042] It should be noted that the second combination device 33 is arranged on the first motor 31, which can be directly arranged on the first motor 31, or indirectly connected with the first motor 31; the third combination device 34 is arranged on the engine 32, which can be directly arranged on the engine 32, or indirectly connected with the engine 32.
[0043] When the second combination device 33 is arranged on the engine 32, and the third combination device 34 is arranged on the first motor 31, as shown in Figure 3 and Figure 4 When the third combination device 34 is combined with the first combination device 21, the first motor 31 is separated from the engine 32 and can drive the first gear 2 to rotate, because the first gear 2 is in transmission connection with the main reducer 1, thereby driving the main reducer 1 to operate; when the third combination device 34 is combined with the second combination device 33, the engine 32 is combined with the first motor 31, and the engine 32 can drive the first motor 31 to operate, so that the first motor 31 supplies power to the second drive system 5, and drives the main reducer 1 to operate, at this time, the first gear 2 is driven by the main reducer 1 to rotate; when the third combination device 34 is separated from the first combination device 21 and the second combination device 33, the second drive system 5 can directly drive the main reducer 1 to operate.
[0044] It should be noted that the second combination device 33 is arranged on the engine 32, which can be directly arranged on the engine 32, or indirectly connected with the engine 32; the third combination device 34 is arranged on the first motor 31, which can be directly arranged on the first motor 31, or indirectly connected with the first motor 31.
[0045] It can be understood that the first combination device 21, the second combination device 33 and the third combination device 34 can realize the combination and separation between the first motor 31, the engine 32 and the first gear 2, so that when the engine 32 is separated from the first motor 31 and combined with the first gear 2, the engine 32 can realize the output of power without rotating the first motor 31, which can eliminate the inertial load of the first motor 31, reduce the energy consumption of the hybrid power system 100, and further improve the economy of the hybrid power system 100.
[0046] For example, the hybrid power system 100 of the utility model can be applied to a vehicle, at this time, the power output end is a wheel 101, and the output end of the main reducer 1 is connected with the wheel 101, so as to transmit the torque from the output end of the main reducer 1 to the wheel 101, drive the wheel 101 to rotate, and realize the normal travel of the vehicle.
[0047] For example, the hybrid power system 100 of the utility model can be applied to a vehicle, at this time, the power output end is a wheel 101, and the output end of the main reducer 1 is connected with the wheel 101, so as to transmit the torque from the output end of the main reducer 1 to the wheel 101, drive the wheel 101 to rotate, and realize the normal travel of the vehicle. Figure 1The shown embodiment is an example, the second combination device 33 is arranged on the first motor 31, the third combination device 34 is arranged on the engine 32, when the third combination device 34 is combined with the second combination device 33, the engine 32 is combined with the first motor 31 and is separated from the first gear 2, the engine 32 can drive the first motor 31 to operate, so that the first motor 31 supplies power to the second drive system 5, drives the main reducer 1 to operate through the second drive system 5, and drives the wheel 101 to rotate, at this time, the hybrid power system 100 is in the range extending mode. When driving at low speed, the traditional fuel engine 32 often encounters various complex working conditions such as idling, low speed, rapid acceleration and climbing, and the engine 32 is often not working in the best thermal efficiency interval, resulting in high fuel consumption, and when the hybrid power system 100 of the utility model is in the range extending mode, the engine 32 is only used to drive the first motor 31 to generate power, the speed of the engine 32 is not limited by the traditional oil wheel end low speed, the speed of the first motor 31 can be improved, the torque is increased, the engine 32 is in the interval with higher thermal efficiency, the thermal efficiency of the engine 32 is improved, and the loss of thermal efficiency of the engine 32 is reduced.
[0048] When the third combination device 34 is combined with the first combination device 21, the engine 32 drives the first gear 2 to rotate and is separated from the first motor 31, the first gear 2 drives the main reducer 1 to operate, drives the wheel 101 to rotate, at this time, the hybrid power system 100 is in the engine direct drive mode, under the condition of medium and high speed, the engine direct drive can avoid the energy consumption of the engine 32, inverter and motor under the condition of the range extending mode, can improve the fuel consumption efficiency, ensure strong power and low fuel consumption, improve the economy. The utility model increases the engine direct drive mode of the hybrid power system 100, can improve the fuel consumption efficiency under the condition of medium and high speed, ensure strong power and low fuel consumption, improve the economy, and realize the switchable range extending mode and engine direct drive mode of the hybrid power system 100 through simple structure.
[0049] When the third combination device 34 is separated from the first combination device 21 and the second combination device 33, under the condition of no need to drive (such as vehicle sliding stage), the main reducer 1 drives the first gear 2 to rotate, since the first gear 2 is disconnected with the engine 32 and the first motor 31 at this time, the engine 32 and the first motor 31 will not be dragged, the drag loss can be relatively reduced, at this time, the energy recovery is realized by the second drive system 5.
[0050] According to the hybrid power system 100, the third combination device 34 is combined with one of the first combination device 21 and the second combination device 33 or separated from the first combination device 21 and the second combination device 33, the combination and separation between the first motor 31, the engine 32 and the first gear 2 can be realized, when the engine 32 is separated from the first motor 31 and combined with the first gear 2, the engine 32 can realize the power output without rotating the first motor 31, the inertial load of the first motor 31 can be eliminated, the energy consumption of the hybrid power system 100 is reduced, and the economy of the hybrid power system 100 is improved.
[0051] In some embodiments of the utility model, reference is made to the drawings Figure 1 As shown in the drawings, the third combination device 34 is connected with the first motor 31 or the engine 32 through the driving shaft 341, the driving shaft 341 is arranged in the first gear 2, the first gear 2 is sleeved on the driving shaft 341, and the third combination device 34 is movable between the first combination device 21 and the second combination device 33.
[0052] Reference is made to the drawings Figure 1 and the drawings Figure 2 As shown in the drawings, when the driving shaft 341 connects the third combination device 34 and the engine 32, the power of the engine 32 can be transmitted to the third combination device 34 through the driving shaft 341, and then the third combination device 34 is driven to move between the first combination device 21 and the second combination device 33, so as to control the combination of the third combination device 34 and the first combination device 21 or the combination of the third combination device 34 and the second combination device 33, and then control the separation and combination of the engine 32 and the first motor 31 and the first gear 2; as shown in the drawings Figure 3 and the drawings Figure 4 As shown in the drawings, when the driving shaft 341 connects the third combination device 34 and the first motor 31, the power of the first motor 31 can be transmitted to the third combination device 34 through the driving shaft 341, and then the third combination device 34 is driven to move between the first combination device 21 and the second combination device 33, so as to control the combination of the third combination device 34 and the first combination device 21 or the combination of the third combination device 34 and the second combination device 33, and then control the separation and combination of the first motor 31 and the engine 32 and the first gear 2, different modes can be switched according to the needs of the user, the economy of the hybrid power system 100 is improved, and the use experience of the user is improved.
[0053] In some embodiments of the utility model, reference is made to the drawings Figure 1As shown, the hybrid power system 100 also includes a transmission gear set 4, which includes a first output gear 41 and a second output gear 42. The first output gear 41 is connected to the output end of the engine 32, and the second output gear 42 meshes with the first output gear 41. A second engagement device 33 or a third engagement device 34 is connected to the second output gear 42. The transmission gear set 4 can achieve the effect of speed reduction and torque increase, enabling a larger transmission ratio, outputting greater torque, and improving the power performance of the hybrid power system 100.
[0054] It is understandable that when the engine 32 is running, the first output gear 41 is connected to the output end of the engine 32, causing the engine 32 to drive the first output gear 41 to rotate, which in turn drives the second output gear 42 to rotate. When the third coupling device 34 is provided on the engine 32, the second output gear 42 is connected to the third coupling device 34 through the drive shaft 341, so as to transmit the power of the engine 32 to the third coupling device 34. When the third coupling device 34 is provided on the first motor 31, the second output gear 42 is connected to the second coupling device 33.
[0055] In some embodiments of this utility model, reference is made to the appendix. Figure 1 As shown, the hybrid power system 100 also includes a second drive system 5. The first motor 31 is connected to the second drive system 5 and is used to supply power to the second drive system 5. The output end of the second drive system 5 is connected to the input gear 11 of the main reducer 1. When the first motor 31 is running, it can supply power to the second drive system 5, so that the second drive system 5 drives the input gear 11 of the main reducer 1 to rotate, thereby driving the main reducer 1 to operate, and then driving the wheel 101 to rotate. When the first motor 31 is not running, the second drive system 5 can directly drive the input gear 11 of the main reducer 1 to rotate, driving the main reducer 1 to operate, and driving the wheel 101 to rotate.
[0056] by Figure 1 Taking the illustrated embodiment as an example, the second coupling device 33 is mounted on the first motor 31, and the third coupling device 34 is mounted on the engine 32. When the third coupling device 34 is separated from both the first coupling device 21 and the second coupling device 33, the second drive system 5 drives the input gear 11 of the main reducer 1 to rotate, thereby driving the main reducer 1 to operate and driving the wheels 101 to rotate. At this time, the hybrid power system 100 is in pure electric mode. When the vehicle is traveling at low speed or braking, the engine 32 cannot start because the wheel end speed is low. The existence of pure electric mode can ensure the normal driving of the vehicle and meet the low-speed driving needs of the vehicle.
[0057] When the third coupling device 34 is coupled with the first coupling device 21, the engine 32 drives the first gear 2 to rotate and is decoupled from the first motor 31, the first gear 2 drives the input gear 11 of the main reducer 1 to rotate, at the same time, the second driving system 5 also drives the input gear 11 of the main reducer 1 to rotate, the first gear 2 and the second driving system 5 act on the input gear 11 of the main reducer 1 at the same time, so that the main reducer 1 operates to drive the wheels 101 to rotate, at this time, the hybrid power system 100 is in parallel mode. When accelerating, reversing or overtaking, the engine 32 and the second driving system 5 can simultaneously drive the main reducer 1, and the engine 32 itself does not spray more oil, which can enhance the power of the hybrid power system 100, and will not affect the fuel consumption, and can also avoid the acceleration stall of the extended range mode at high speed cruising.
[0058] It can be understood that when the vehicle is running at low speed, the pure electric mode or the extended range mode can be selected, and the engine 32 can be selected to operate in the interval with high thermal efficiency; when the vehicle is running at medium and high speed, the engine direct drive mode can be selected, which can improve the fuel consumption efficiency by 3%-4% compared with the extended range mode; when the vehicle is accelerating at high speed cruising, the parallel mode can be selected, the engine 32 and the second driving system 5 drive the main reducer 1 at the same time, and the engine 32 itself does not spray more oil to maintain high fuel consumption, which can ensure strong power and avoid the acceleration stall of the extended range mode at high speed cruising. Through the switchable multiple modes, the powertrain can be in an efficient operation state in all working condition scenes, and the superior power of the hybrid power system 100 can be ensured.
[0059] In a further embodiment of the present application, referring to FIG. 2, Figure 1 As shown in FIG. 2, the second driving system 5 comprises a second motor 51 and a battery 52, the second motor 51, the battery 52 and the first motor 31 are connected two by two, the motor shaft 511 of the second motor 51 is connected with the input gear 11 of the main reducer 1, the first motor 31 can charge the battery 52 or directly power the second motor 51, the battery 52 can store power and supply power to the second motor 51 when needed, and the second motor 51 is an execution mechanism of the second driving system 5, which is used for converting electrical energy into mechanical energy to drive the input gear 11 of the main reducer 1 to rotate through the motor shaft 511, so as to drive the main reducer 1 to operate and further drive the wheels 101 to rotate.
[0060] It should be noted that the first motor 31 can only charge the battery 52, and supply power to the second motor 51 through the battery 52, which can ensure that the power of the battery 52 is sufficient and avoid user anxiety about power consumption; or only power the second motor 51 without passing through the battery 52, which can relatively improve the power supply efficiency; or charge the battery 52 and power the second motor 51 at the same time, which can be proportionally distributed according to the user's needs to meet different user needs.
[0061] In a further embodiment of the present application, referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 3 As shown in the accompanying drawings, the motor shaft 511 of the second motor 51 is parallel to and spaced from the power output shaft 102, which can avoid relative interference between the second driving system 5 and the power output shaft 102, facilitate the assembly of the hybrid power system 100, reduce the assembly difficulty of the hybrid power system 100, and improve the assembly efficiency of the hybrid power system 100.
[0062] In a further embodiment of the present application, referring to the accompanying drawings Figure 2 and the accompanying drawings Figure 4 As shown in the accompanying drawings, the axis of the power output shaft 102 and the axis of the motor shaft 511 of the second motor 51 are collinear, the power output shaft 102 is arranged in the second motor 51 and the motor shaft 511 of the second motor 51, and the second motor 51 is sleeved on the power output shaft 102, which can relatively reduce the volume of the hybrid power system 100 and facilitate the assembly of the hybrid power system 100.
[0063] When the hybrid power system 100 is applied to a vehicle, the power output shaft 102 is a half shaft of the wheel 101, the axis of the half shaft of the wheel 101 and the axis of the motor shaft 511 of the second motor 51 are collinear, which can reduce the volume of the hybrid power system 100, reduce the space occupied by the hybrid power system 100 in the front-rear direction of the vehicle (as shown in the accompanying drawings), and be beneficial to the overall layout and design of the vehicle. It should be noted that the main function of the half shaft is to transmit the power of the hybrid power system 100, the transmission and the drive axle to the wheel 101, so as to generate driving force for the vehicle. Figure 2
[0064] In a further embodiment of the present application, referring to the accompanying drawings Figure 1 As shown in the accompanying drawings, the main reducer 1 comprises a second gear, a third gear 12, an intermediate shaft 13, a fourth gear 14 and a fifth gear 15, the second gear is configured as an input gear 11 and is engaged with the first gear 2, the third gear 12 is engaged with the second gear, and the third gear 12 is located on the side of the second gear away from the first gear 2, the intermediate shaft 13 is arranged on the third gear 12 and rotates synchronously with the third gear 12, the fourth gear 14 is connected with the intermediate shaft 13 and rotates synchronously with the intermediate shaft 13, so that the third gear 12, the intermediate shaft 13 and the fourth gear 14 rotate synchronously, the fifth gear 15 is engaged with the fourth gear 14, and the fifth gear 15 is connected with the power output shaft 102 for driving the power output end to rotate, which can improve the effect of speed reduction and torque increase, realize a larger transmission ratio, output a larger wheel end torque, and improve the power performance of the hybrid power system 100.
[0065] It is understandable that the first gear 2 can drive the second gear to rotate, and the third gear 12 meshes with the second gear and rotates together under the drive of the second gear. The intermediate shaft 13 rotates along its length (see attached diagram). Figure 1 The two ends of the gear 101 (shown in the left and right directions) are fixedly connected to the third gear 12 and the fourth gear 14 respectively. The fourth gear 14 is driven to rotate through the intermediate shaft 13. The fifth gear 15 meshes with the fourth gear 14 and rotates together under the drive of the fourth gear 14. Finally, the torque is transmitted to the half shaft of the wheel 101, driving the wheel 101 to rotate and realize the normal movement of the vehicle.
[0066] In some embodiments of this utility model, reference is made to the appendix. Figure 1 As shown, the hybrid power system 100 also includes a differential 6, which is connected to the output end of the main reducer 1 and is used to drive the power output end to rotate. It can be understood that the hybrid power system 100 of this invention is used in front-wheel drive or rear-wheel drive vehicles. When the hybrid power system 100 is used in a front-wheel drive vehicle, the two front wheels 101 of the vehicle are connected to the hybrid power system 100. Each of the two front wheels 101 is provided with a half-shaft extending towards each other. The differential 6 is connected to the half-shafts of the two front wheels 101, which can flexibly distribute torque between the two half-shafts, ensuring that the vehicle can drive smoothly under different road conditions and improving the vehicle's driving stability, handling, and safety. When the hybrid power system 100 is used in a rear-wheel drive vehicle, the two rear wheels 101 of the vehicle are connected to the hybrid power system 100. Each of the two rear wheels 101 is provided with a half-shaft extending towards each other. The differential 6 is connected to the half-shafts of the two rear wheels 101, which can flexibly distribute torque between the two half-shafts, ensuring that the vehicle can drive smoothly under different road conditions and improving the vehicle's driving stability, handling, and safety.
[0067] The following is for reference. Figures 1 to 4 The present invention describes a hybrid power system 100 according to four specific embodiments. It is to be understood that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0068] Example 1
[0069] Specifically, such as Figure 1 As shown, the hybrid power system 100 includes: a main reducer 1, a first gear 2, a first drive system 3, a transmission gear set 4, a second drive system 5, and a differential 6.
[0070] Further, the main reducer 1 comprises a second gear, a third gear 12, an intermediate shaft 13, a fourth gear 14 and a fifth gear 15, the second gear is configured as the input gear 11 and is engaged with the first gear 2, the third gear 12 is engaged with the second gear, the intermediate shaft 13 is arranged on the third gear 12 and rotates synchronously with the third gear 12, the fourth gear 14 is connected with the intermediate shaft 13 and rotates synchronously with the intermediate shaft 13, so that the third gear 12, the intermediate shaft 13 and the fourth gear 14 rotate synchronously, and the fifth gear 15 is engaged with the fourth gear 14 for driving the wheel 101 to rotate.
[0071] Further, the first gear 2 has a first coupling device 21, the first drive system 3 comprises a first motor 31 and an engine 32, the first motor 31 has a second coupling device 33, the second coupling device 33 is oppositely arranged and spaced apart from the first coupling device 21, a third coupling device 34 is connected with the engine 32 through a drive shaft 341, the drive shaft 341 is arranged in the first gear 2, the third coupling device 34 is located between and movable between the first coupling device 21 and the second coupling device 33, and the third coupling device 34 is selectively coupled with one of the first coupling device 21 and the second coupling device 33 or separated from both the first coupling device 21 and the second coupling device 33.
[0072] Further, the transmission gear set 4 comprises a first output gear 41 and a second output gear 42, the first output gear 41 is connected with an output end of the engine 32, the second output gear 42 is engaged with the first output gear 41 and connected with the drive shaft 341, the transmission gear set 4 can improve the effect of speed reduction and torque increase, achieve a larger transmission ratio, output a larger wheel end torque, and improve the power performance of the hybrid power system 100.
[0073] In addition, the second drive system 5 comprises a second motor 51 and a battery 52, the second motor 51, the battery 52 and the first motor 31 are connected two by two, a motor shaft 511 of the second motor 51 is connected with the second gear, the motor shaft 511 of the second motor 51 is parallel to and spaced apart from the half shaft of the wheel 101, the first motor 31 can charge the battery 52 or directly power the second motor 51, the battery 52 can store power and supply power to the second motor 51 when needed, and the second motor 51 is an actuator of the second drive system 5 for converting electrical energy into mechanical energy to drive the input gear 11 of the main reducer 1 to rotate through the motor shaft 511, thereby driving the main reducer 1 to operate and further driving the wheel 101 to rotate.
[0074] In addition, the differential 6 is connected with the fifth gear 15 of the main reducer 1 for driving the half shaft of the wheel 101 to rotate.
[0075] It can be understood that the hybrid power system 100 of the embodiment one of the utility model has four driving modes, as shown in table 1:
[0076] Table 1 Driving mode operation logic table of embodiment one
[0077]
[0078]
[0079] Pure electric mode: the third combination device 34 is separated from the first combination device 21 and the second combination device 33, the battery 52 powers the second motor 51 to make the second motor 51 rotate, the motor shaft 511 of the second motor 51 drives the second gear to rotate, the second gear drives the first gear 2 and the third gear 12 to rotate simultaneously, and the fourth gear 14 is driven through the intermediate shaft 13, and the fifth gear 15 is driven to rotate, thereby driving the differential 6 to work, and power is transmitted to the half shaft of the two wheels 101, drives the wheel 101 to rotate, when the vehicle is low-speed running or braking, the engine 32 cannot be started due to the low wheel end speed, and the existence of the pure electric mode can guarantee the normal progress of the vehicle, and meet the low-speed running demand of the vehicle.
[0080] Extended range mode: the engine 32 rotates to drive the first output gear 41 to rotate, and then drives the second output gear 42 to rotate, the second output gear 42 drives the drive shaft 341, so that the third combination device 34 is combined with the second combination device 33, the power of the engine 32 is transmitted to the first motor 31, so that the first motor 31 directly powers the second motor 51, and / or, the first motor 31 charges the battery 52, the battery 52 powers the second motor 51, the motor shaft 511 of the second motor 51 drives the second gear to rotate, the second gear drives the first gear 2 and the third gear 12 to rotate simultaneously, and the fourth gear 14 is driven through the intermediate shaft 13, and the fifth gear 15 is driven to rotate, thereby driving the differential 6 to work, and power is transmitted to the half shaft of the two wheels 101, drives the wheel 101 to rotate, when the vehicle is low-speed running, the engine 32 is low-speed, high fuel consumption, not in the best thermal efficiency interval, and the extended range mode charges the first motor 31 by the engine 32, and drives through the second motor 51, so that the engine 32 is not limited by the traditional oil wheel 101 end low-speed, can improve the rotating speed, increase the torque, make the engine 32 be in the interval of higher thermal efficiency, improve the thermal efficiency of the engine 32, reduce the loss of thermal efficiency of the engine 32.
[0081] Engine direct drive mode: the engine 32 runs to drive the first output gear 41 to rotate, and then drive the second output gear 42 to rotate, the second output gear 42 drives the drive shaft 341, so that the third coupling device 34 is combined with the first coupling device 21, the engine 32 drives the first gear 2 to rotate and is disconnected with the first motor 31, the first gear 2 drives the second gear to rotate, the second gear drives the third gear 12, the intermediate shaft 13 and the fourth gear 14 to rotate, the fourth gear 14 drives the fifth gear 15 to rotate, thereby driving the differential 6 to work, transmitting power to the axle shaft of the two wheels 101, driving the wheels 101 to rotate, in the high-speed working condition, the engine 32 direct drive can avoid the energy consumption of the engine 32, inverter and motor in the extended range mode, can improve the fuel consumption efficiency, ensure the strong power and low fuel consumption, and improve the economy.
[0082] Parallel mode: the engine 32 runs to drive the first output gear 41 to rotate, and then drive the second output gear 42 to rotate, the second output gear 42 drives the drive shaft 341, so that the third coupling device 34 is combined with the first coupling device 21, the engine 32 drives the first gear 2 to rotate and is disconnected with the first motor 31, the first gear 2 drives the second gear to rotate, at the same time, the motor shaft 511 of the second motor 51 also drives the second gear to rotate, the first gear 2 and the motor shaft 511 of the second motor 51 act on the second gear at the same time, the second gear drives the third gear 12, the intermediate shaft 13 and the fourth gear 14 to rotate, the fourth gear 14 drives the fifth gear 15 to rotate, thereby driving the differential 6 to work, transmitting power to the axle shaft of the two wheels 101, driving the wheels 101 to rotate, so that the engine 32 and the second motor 51 can drive at the same time when accelerating, reversing or overtaking, and the engine 32 itself does not spray more oil, which can enhance the power of the hybrid power system 100, and will not affect the fuel consumption, and can also avoid the acceleration stall in the high-speed cruise in the extended range mode.
[0083] Example two
[0084] The embodiment is basically the same as example one, wherein the same parts use the same names and marks, the difference between example two and example one is that the axis of the axle shaft of the wheel 101 and the axis of the motor shaft 511 of the second motor 51 are collinear, the axle shaft of the wheel 101 is arranged in the second motor 51 and the motor shaft 511 of the second motor 51, the second motor 51 is sleeved on the axle shaft of the wheel 101, which can relatively reduce the volume of the hybrid power system 100, reduce the space occupied by the hybrid power system 100 in the front and rear direction of the vehicle, and is beneficial to the overall layout and design of the vehicle.
[0085] Example three
[0086] The embodiment is basically same as the embodiment one, wherein same components adopt same names and marks, and the embodiment three is different from the embodiment one only in that the second connecting device 33 is arranged on the engine 32 and connected with the second output gear 42, and the third connecting device 34 is connected with the first motor 31 through the driving shaft 341.
[0087] It can be understood that the hybrid power system 100 of the embodiment three has four driving modes, as shown in Table 2.
[0088] Table 2 Driving mode operation logic table of the embodiment three
[0089]
[0090] The range extending mode: the first motor 31 operates and drives the driving shaft 341, and the third connecting device 34 is combined with the second connecting device 33 under the driving of the driving shaft 341, the power of the engine 32 is transmitted to the first motor 31, the first motor 31 directly supplies power to the second motor 51, and / or the first motor 31 charges the battery 52, the battery 52 supplies power to the second motor 51, the motor shaft 511 of the second motor 51 drives the second gear to rotate, the second gear drives the first gear 2 and the third gear 12 to rotate at the same time, and the fourth gear 14 and the fifth gear 15 are driven to rotate through the intermediate shaft 13, so as to drive the differential 6 to operate, the power is transmitted to the half shafts of the two wheels 101, and the wheels 101 are driven to rotate, since the first motor 31 controls the combination and disconnection of the first motor 31 and the engine 32, and is not limited by the rotating speed of the engine 32, the vehicle can be quickly accelerated when the vehicle is running at low speed or even when the vehicle is just started, and the use experience of the user is greatly improved.
[0091] The first pure electric mode: the first motor 31 operates and drives the driving shaft 341, so that the third connecting device 34 is combined with the first connecting device 21, the first motor 31 drives the first gear 2 to rotate, the first gear 2 drives the second gear to rotate, the second gear drives the third gear 12, the intermediate shaft 13 and the fourth gear 14 to rotate, the fourth gear 14 drives the fifth gear 15 to rotate, so as to drive the differential 6 to operate, and the power is transmitted to the half shafts of the two wheels 101, and the wheels 101 are driven to rotate, at this time, only the first motor 31 is used for driving, and the power consumption is relatively low.
[0092] The second pure electric mode: the third combination device 34 is separated from the first combination device 21 and the second combination device 33, the battery 52 supplies power to the second motor 51 to drive the second motor 51, the motor shaft 511 of the second motor 51 drives the second gear to rotate, the second gear drives the first gear 2 and the third gear 12 to rotate at the same time, and the fourth gear 14 and the fifth gear 15 are driven to rotate through the intermediate shaft 13, so that the differential 6 is driven to work, power is transmitted to the half shaft of the two wheels 101, and the wheels 101 are driven to rotate, and only the second motor 51 is used for driving, so that the power consumption is relatively low.
[0093] The third pure electric mode: the third combination device 34 is combined with the first combination device 21, so that the first motor 31 drives the first gear 2 to rotate, the first gear 2 drives the second gear to rotate, the motor shaft 511 of the second motor 51 drives the second gear to rotate, the second gear drives the first gear 2 and the third gear 12 to rotate at the same time, and the fourth gear 14 and the fifth gear 15 are driven to rotate through the intermediate shaft 13, so that the differential 6 is driven to work, power is transmitted to the half shaft of the two wheels 101, and the wheels 101 are driven to rotate, the first motor 31 and the second motor 51 are driven at the same time, and the power performance of the hybrid power system 100 can be enhanced.
[0094] Embodiment four
[0095] The embodiment is basically the same as the third embodiment, wherein the same parts adopt the same names and marks, and the embodiment four is different from the third embodiment only in that the axis of the half shaft of the wheel 101 and the axis of the motor shaft 511 of the second motor 51 are collinear, the half shaft of the wheel 101 is arranged in the second motor 51 and the motor shaft 511 of the second motor 51, and the second motor 51 is sleeved on the half shaft of the wheel 101, so that the volume of the hybrid power system 100 can be relatively reduced, the space occupied by the hybrid power system 100 in the front-rear direction of the vehicle can be reduced, and the whole vehicle layout and design of the vehicle are facilitated.
[0096] The utility model also provides a vehicle with the hybrid power system 100 of the above embodiment.
[0097] According to the vehicle provided by the utility model, the third combination device 34 is combined with one of the first combination device 21 and the second combination device 33 or separated from the first combination device 21 and the second combination device 33, the combination and separation between the first motor 31, the engine 32 and the first gear 2 are realized, when the engine 32 is separated from the first motor 31 and combined with the first gear 2, the engine 32 can realize the output of power without rotating the first motor 31, the inertial load of the first motor 31 can be eliminated, the energy consumption of the hybrid power system 100 is reduced, and the economy of the hybrid power system 100 is improved.
[0098] Other configurations and operations of the hybrid system 100 and the vehicle according to the embodiments of the present application are known to those skilled in the art, and thus will not be described in detail herein.
[0099] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the features of different embodiments or examples described in the present application and the features of different embodiments or examples, without contradiction.
[0100] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A hybrid system characterized by comprising: Comprising: a main reducer connected with a power output end; a first gear in transmission connection with the main reducer, the first gear having a first coupling device thereon; a first drive system comprising a first motor and an engine, one of the first motor and the engine having a second coupling device, the second coupling device being oppositely arranged and spaced apart from the first coupling device, the other of the first motor and the engine having a third coupling device, the third coupling device being located between the first coupling device and the second coupling device, the third coupling device being selectively coupled with one of the first coupling device and the second coupling device or being separated from both the first coupling device and the second coupling device.
2. The hybrid system according to claim 1, characterized by The third coupling device is connected with the first motor or the engine through a drive shaft, the drive shaft being arranged through the first gear, the third coupling device being movable between the first coupling device and the second coupling device.
3. The hybrid system according to claim 1, characterized by Further comprising: a transmission gear set comprising a first output gear and a second output gear, the first output gear being connected with an output end of the engine, the second output gear being in mesh with the first output gear, the second coupling device or the third coupling device being connected with the second output gear.
4. The hybrid system of claim 1, wherein, Further comprising: a second drive system, the first motor being connected with the second drive system for supplying power to the second drive system, an output end of the second drive system being connected with an input gear of the main reducer.
5. The hybrid system according to claim 4, characterized by The second drive system comprises: a second motor and a battery, the second motor, the battery and the first motor being connected two by two, a motor shaft of the second motor being connected with the input gear of the main reducer.
6. The hybrid system according to claim 5, characterized by The motor shaft of the second motor is parallel and spaced apart from a power output shaft.
7. The hybrid system according to claim 5, characterized by An axis of the power output shaft and an axis of the motor shaft of the second motor are collinear, the power output shaft being arranged through the second motor and the motor shaft of the second motor.
8. The hybrid system of claim 4, wherein, The main reducer comprises: a second gear configured as the input gear and in mesh with the first gear; a third gear in mesh with the second gear; an intermediate shaft arranged on the third gear and rotating synchronously with the third gear; a fourth gear connected with the intermediate shaft and rotating synchronously with the intermediate shaft; a fifth gear in mesh with the fourth gear for driving the power output end to rotate.
9. The hybrid system of claim 1, wherein, Further comprising: a differential connected with an output end of the main reducer for driving the power output end to rotate.
10. A vehicle characterized by comprising: The hybrid power system according to any one of claims 1-9 is included.