Range-extended power assembly and vehicle

Abstract

The utility model provides an extended-range power assembly and a vehicle. The extended-range power assembly comprises an engine, a first motor, a second motor and a third motor. The engine is longitudinally arranged. The first motor is arranged on the first side of the engine and connected with the engine. The second motor is arranged on the second side of the engine and connected with the engine. The third motor is arranged on the third side of the engine and connected with the engine. Wherein the first side, the second side and the third side are different sides in the circumferential direction of the engine. In the scheme, the engine is longitudinally arranged, so that the longitudinal space of a vehicle body can be effectively utilized, and the front arrangement is more compact. The first motor, the second motor and the third motor are arranged on the different sides of the engine respectively, the space around the engine is fully utilized, and occupation of the internal space of a vehicle body is reduced. The layout of the range-extended power assembly enables the weight distribution of the front axle and the rear axle of the vehicle to be more balanced, and the control performance and the stability of the vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically to an extended-range powertrain and a vehicle. Background Art

[0002] Currently, the space occupied by arranging multiple electric motors and engines in hybrid vehicles is relatively large.

[0003] Therefore, there is a need to provide an extended-range powertrain and a vehicle to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides an extended-range powertrain, comprising:

[0006] Longitudinal engine;

[0007] a first motor, the first motor being disposed at a first side of the engine and connected to the engine;

[0008] a second motor, the second motor being disposed on a second side of the engine and connected to the engine; and

[0009] A third motor is disposed on a third side of the engine and connected to the engine, and the first side, the second side and the third side are different sides of the engine in a circumferential direction.

[0010] According to the extended-range powertrain of the first aspect of the utility model, the longitudinal placement of the engine can effectively utilize the longitudinal space of the vehicle body, making the front layout more compact. The first motor, the second motor and the third motor are respectively arranged on different sides of the engine, making full use of the space around the engine and reducing the occupation of the internal space of the vehicle body. The layout of the extended-range powertrain makes the weight distribution of the front and rear axles of the vehicle more balanced, which helps to improve the handling performance and stability of the vehicle.

[0011] Optionally, the first side is the left side;

[0012] The second side is the right side;

[0013] The third side is the front side or the rear side.

[0014] Optionally, a speed ratio of a gear set connected to the first motor is different from a speed ratio of a gear set connected to the second motor.

[0015] Optionally, a speed ratio of the gear set connected to the first motor is the same as a speed ratio of the gear set connected to the second motor, and a speed ratio of at least one corresponding level between the gear set connected to the first motor and the gear set connected to the second motor is different.

[0016] Optionally, the first motor is a drive motor, and the first motor is used to be connected to the left front wheel;

[0017] The second motor is a driving motor, and the second motor is used to be connected to the right front wheel;

[0018] The third motor is a generator and is connected to an output shaft of the engine.

[0019] Optionally, the first motor is fixedly connected to the housing of the engine via a fixing member, or the first motor and the engine share a housing; and / or

[0020] The second motor is fixedly connected to the housing of the engine via a fixing member, or the second motor and the engine share a housing; and / or

[0021] The third motor is fixedly connected to the housing of the engine via a fixing member, or the third motor and the engine share a housing.

[0022] Optionally, it also includes:

[0023] A left electric drive gear set, wherein the left electric drive gear set is arranged on the left side of the engine, and an input end of the left electric drive gear set is connected to the motor shaft of the first motor;

[0024] The right electric drive gear set is arranged on the right side of the engine, and the input end of the right electric drive gear set is connected to the motor shaft of the second motor.

[0025] Optionally, the left electric drive gear set and the right electric drive gear set are symmetrically arranged about the longitudinal center line of the engine.

[0026] Optionally, the output end of the left electric drive gear set is used to be connected to the left wheel, the rotation axis of the input end of the left electric drive gear set is parallel to the rotation axis of the output end of the left electric drive gear set, and in a plane perpendicular to the left-right direction of the engine, the projection of the input end of the left electric drive gear set is staggered with the projection of the output end of the left electric drive gear set;

[0027] The output end of the right electric drive gear set is used to be connected to the right wheel, the rotation axis of the input end of the right electric drive gear set is parallel to the rotation axis of the output end of the right electric drive gear set, and in a plane perpendicular to the left and right directions of the engine, the projection of the input end of the right electric drive gear set is staggered with the projection of the output end of the right electric drive gear set.

[0028] Optionally, it also includes:

[0029] A left front transmission shaft, the left front transmission shaft is connected to the output end of the left electric drive gear set, and the left front transmission shaft is parallel to the motor shaft of the first motor;

[0030] A right front transmission shaft is connected to the output end of the right electric drive gear set, and the right front transmission shaft is parallel to the motor shaft of the second motor.

[0031] Optionally, it also includes:

[0032] The power generation system gear set is arranged at the rear of the engine, and the power generation system gear set is respectively connected to the engine and the third motor in a transmission manner.

[0033] Optionally, the power generation system gear set includes a power generation assembly speed increasing gear and a generator gear shaft which are sequentially transmission-connected.

[0034] A second aspect of the utility model provides a vehicle, characterized by comprising the above-mentioned extended-range powertrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0036] Figure 1 A three-dimensional schematic diagram of an extended-range powertrain according to a preferred embodiment of the utility model;

[0037] Figure 2 A three-dimensional schematic diagram of a range-extended powertrain according to a preferred embodiment of the present utility model from another perspective;

[0038] Figure 3 A schematic top view of a vehicle front cabin according to a preferred embodiment of the utility model;

[0039] Figure 4 A longitudinal cross-sectional schematic diagram of a vehicle front cabin according to a preferred embodiment of the utility model;

[0040] Figure 5A transmission diagram of an extended-range powertrain according to a preferred embodiment of the present utility model;

[0041] Figure 6 This is a transmission diagram of an extended-range powertrain according to a preferred embodiment of the utility model.

[0042] Description of Reference Numerals

[0043] 10: Engine

[0044] 20: First Motor

[0045] 21: Left electric drive gear set

[0046] 211: Left front drive motor output gear shaft

[0047] 212: Left transmission system reducer intermediate shaft

[0048] 213: Left primary reduction gear set large gear

[0049] 214: Left secondary reduction gear set pinion

[0050] 215: Left front power output gear

[0051] 216: Left front power output gear shaft

[0052] 22: Left front drive shaft

[0053] 30: Second motor

[0054] 31: Right electric drive gear set

[0055] 311: Right front drive motor output gear shaft

[0056] 312: Right transmission system reducer intermediate shaft

[0057] 313: Right primary reduction gear set large gear

[0058] 314: Right secondary reduction gear set pinion

[0059] 315: Right front power output gear

[0060] 316: Right front power output gear shaft

[0061] 32: Right front drive shaft

[0062] 40: The third motor

[0063] 41: Engine output shaft

[0064] 42: Power generation system gear set

[0065] 421: Power generation assembly speed increasing gear

[0066] 422: Generator gear shaft

[0067] 1: Extended-range powertrain

[0068] 2: Body front compartment assembly

[0069] 3: Heat dissipation module

[0070] 4: Subframe

[0071] 5: Engine cover assembly DETAILED DESCRIPTION

[0072] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0073] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0074] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0075] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0076] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0077] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0078] Reference Figure 1-Figure 6The utility model provides an extended-range powertrain 1, comprising an engine 10, a first motor 20, a second motor 30 and a third motor 40. The engine 10 is longitudinally arranged. The first motor 20 is arranged on a first side of the engine 10, and the first motor 20 is connected to the engine 10. The second motor 30 is arranged on a second side of the engine 10, and the second motor 30 is connected to the engine 10. The third motor 40 is arranged on a third side of the engine 10, and the third motor 40 is connected to the engine 10. The longitudinal arrangement of the engine 10 can effectively utilize the longitudinal space of the vehicle body and make the front layout more compact. The first side, the second side and the third side are different sides of the circumference of the engine 10. The first motor 20, the second motor 30 and the third motor 40 are respectively arranged on different sides of the circumference of the engine 10, which makes full use of the space around the engine 10 and reduces the occupation of the internal space of the vehicle body. The layout of the extended-range powertrain 1 makes the weight distribution of the front and rear axles of the vehicle more balanced, which helps to improve the handling performance and stability of the vehicle.

[0079] Optionally, the first motor 20 , the second motor 30 and the third motor 40 are all connected to the housing of the engine 10 .

[0080] Optionally, the first side is the left side. The second side is the right side. The third side is the front side or the rear side. In this solution, the left side refers to the left side of the vehicle. The right side refers to the right side of the vehicle. The front side refers to the front side of the vehicle. The rear side refers to the rear side of the vehicle. Figure 5 In the embodiment shown, the third motor 40 is located at the rear side of the engine 10. Figure 6 In the illustrated embodiment, the third electric machine 40 is located on the front side of the engine 10 .

[0081] In some embodiments of the present invention, the speed ratio of the gear set connected to the first motor 20 is different from the speed ratio of the gear set connected to the second motor 30 .

[0082] In some further embodiments of the present invention, the speed ratio of the gear set connected to the first motor 20 is the same as the speed ratio of the gear set connected to the second motor 30, and the speed ratio of at least one corresponding level of the gear set connected to the first motor 20 and the gear set connected to the second motor 30 is different.

[0083] Through the above-mentioned embodiment, the noise frequencies generated by the gears of the left electric drive gear set and the gears of the right electric drive gear set are greatly different, and the noise waveform frequency is high after superposition. Therefore, by adjusting the gear ratio, the noise peak at a specific frequency can be reduced or the overall noise spectrum distribution can be improved, which can effectively solve the abnormal shaking or humming problem of the existing centralized dual-motor wheel-side independent drive system, improve the driving experience, and improve the comfort of the whole vehicle.

[0084] Optionally, the first motor 20 is a drive motor, and the first motor 20 is used to be connected to the left front wheel.

[0085] Optionally, a left electric drive gear set 21 is further included, and the left electric drive gear set 21 is arranged on the left side of the engine 10. The input end of the left electric drive gear set 21 is drivingly connected to the motor shaft of the first motor 20. The output end of the left electric drive gear set 21 is drivingly connected to the left wheel. The left electric drive gear set 21 is directly connected to the motor shaft of the first motor 20 and the left wheel, which reduces the intermediate transmission link, improves the power transmission efficiency, and reduces the energy loss.

[0086] Optionally, the rotation axis of the input end of the left electric drive gear set 21 is parallel to the rotation axis of the output end of the left electric drive gear set 21. Optionally, the gears of the left electric drive gear set 21 are parallel to the motor shaft of the first motor 20. By setting in parallel, the structure of the gear set is simplified, the energy loss is reduced during the gear transmission process, and the transmission efficiency is improved. In a plane perpendicular to the left and right directions of the engine 10, the projection of the input end of the left electric drive gear set 21 is staggered with the projection of the output end of the left electric drive gear set 21. This arrangement makes full use of the space on the left side of the engine 10, makes the layout of the entire power system more compact, and helps to arrange and optimize other systems inside the vehicle body.

[0087] Specifically, the output shaft of the first motor 20 extends in the left-right direction. The end of the output shaft of the first motor 20 is configured as a gear shaft, that is, it can be the left front drive motor output gear shaft 211.

[0088] The left primary reduction gear set large gear 213 is meshed with the left front drive motor output gear shaft 211 .

[0089] The left secondary reduction gear set pinion 214 is coaxially arranged with the left primary reduction gear set large gear 213 , and the diameter of the left primary reduction gear set large gear 213 is greater than the diameter of the left secondary reduction gear set pinion 214 .

[0090] Optionally, the large gear 213 of the left primary reduction gear group and the small gear 214 of the left secondary reduction gear group are both connected to the left transmission system reducer intermediate shaft 212, and the large gear 213 of the left primary reduction gear group and the small gear 214 of the left secondary reduction gear group are coaxially arranged with the left transmission system reducer intermediate shaft 212.

[0091] The left front power output gear 215 is meshed with the left secondary reduction gear set pinion 214. The diameter of the left front power output gear 215 is greater than the diameter of the left secondary reduction gear set pinion 214.

[0092] The left front power output gear shaft 216 is coaxially arranged with the left front power output gear 215. The left front power output gear shaft 216 is used to be connected to the left front transmission shaft 22. The left front transmission shaft 22 is used to be connected to the left wheel. Optionally, the left front transmission shaft 22 is parallel to the left front drive motor output gear shaft 211.

[0093] The second motor 30 is a driving motor, and the second motor 30 is used to be connected to the right front wheel. The second motor 30 is similar to the first motor 20.

[0094] The second motor 30 is provided with a right electric drive gear set 31. The right electric drive gear set 31 and the left electric drive gear set 21 are symmetrically arranged about the longitudinal center line of the engine 10. The symmetrical layout makes the weight distribution of the electric drive gear sets on the left and right sides and their corresponding components uniform, which helps to balance the weight of the whole vehicle and improve the stability and handling of the vehicle.

[0095] The right electric drive gear set 31 includes a right front drive motor output gear shaft 311, a right transmission system reducer intermediate shaft 312, a right primary reduction gear set large gear 313, a right secondary reduction gear set small gear 314 and a right front power output gear 315. The right electric drive gear set 31 is similar to the left electric drive gear set 21, and will not be described here for brevity.

[0096] The input end of the right electric drive gear set 31 is connected to the motor shaft of the second motor 30. The output end of the right electric drive gear set 31 is connected to the right wheel. Specifically, the motor shaft of the second motor 30 is configured as a right front drive motor output gear shaft 311. The right front power output gear shaft 316 is connected to the right front transmission shaft 32. The right front transmission shaft 32 is used to connect to the right wheel. Optionally, the right front transmission shaft 32 is parallel to the right front drive motor output gear shaft 311.

[0097] The third motor 40 is a generator. When the engine 10 is longitudinally arranged, its output end faces the rear of the vehicle. The third motor 40 is located behind the engine 10 and is drivingly connected to the output shaft of the engine 10. By utilizing the space advantage of the longitudinally arranged engine 10, the layout of the power system is made more compact, and the utilization of the interior space of the vehicle is optimized.

[0098] The power generation system gear set 42 is also included. The power generation system gear set 42 is arranged behind the engine 10, and the power generation system gear set 42 is respectively connected to the engine 10 and the third motor 40. The power generation system gear set 42 directly transmits the output power of the engine 10 to the generator, reducing the energy loss of the intermediate transmission link and improving the power generation efficiency.

[0099] The power generation system gear set 42 includes a power generation assembly speed increasing large gear 421 and a generator gear shaft 422 which are sequentially connected in transmission.

[0100] Specifically, an output shaft of the engine 10 extends in the front-rear direction of the vehicle.

[0101] The power generation assembly speed increasing gear 421 is directly connected to the output shaft of the engine 10 .

[0102] The power generation assembly speed-increasing gear 421 is connected to the engine output shaft 41. The power generation assembly speed-increasing gear 421 is coaxially arranged with the engine output shaft 41.

[0103] The input end of the generator is configured as a gear shaft, that is, it can be a generator gear shaft 422. The generator gear shaft 422 is meshed with the power generation assembly speed-increasing large gear 421. The diameter of the power generation assembly speed-increasing large gear 421 is larger than the diameter of the generator gear shaft 422. The power of the engine 10 is efficiently transmitted to the generator, so that the generator can work at a higher speed, thereby improving the power generation efficiency.

[0104] In this solution, the first motor 20, the second motor 30, the third motor 40 and the housing of the engine 10 are fixedly connected by fixing parts, or the first motor 20, the second motor 30, the third motor 40 and the engine 10 share a housing. Taking the first motor 20 as an example, optionally, the first motor 20 is screwed and fixed to the housing of the engine 10. That is, the first motor 20 is directly installed on the engine 10, and the first motor 20 and the engine 10 are integrated, so that the entire power system is more compact, which is conducive to space optimization in body design.

[0105] The utility model also provides a vehicle, comprising the above-mentioned extended-range powertrain 1.

[0106] The vehicle further includes a front cabin assembly 2, a heat dissipation module 3, a subframe 4, and a bonnet assembly 5. The front cabin assembly 2, the heat dissipation module 3, the subframe 4, and the bonnet assembly 5 enclose a front cabin, and the extended-range powertrain 1 is placed in the front cabin. The front cabin assembly 2 is located to the side of the extended-range powertrain 1. The heat dissipation module 3 is located in front of the extended-range powertrain 1. The subframe 4 is located at the bottom of the extended-range powertrain 1. The bonnet assembly 5 is located at the top of the extended-range powertrain 1.

[0107] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0108] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. An extended-range powertrain, characterized in that: include: Longitudinal engine; a first motor, the first motor being disposed at a first side of the engine and connected to the engine; a second motor, the second motor being disposed on a second side of the engine and connected to the engine; as well as A third motor is disposed on a third side of the engine and connected to the engine, and the first side, the second side and the third side are different sides of the engine in a circumferential direction.

2. The extended-range powertrain according to claim 1, characterized in that: The first side is the left side; The second side is the right side; The third side is the front side or the rear side.

3. The extended-range powertrain according to claim 1, characterized in that: The speed ratio of the gear set connected to the first motor is different from the speed ratio of the gear set connected to the second motor.

4. The extended-range powertrain according to claim 1, characterized in that: The speed ratio of the gear set connected to the first motor is the same as the speed ratio of the gear set connected to the second motor, and the speed ratio of at least one corresponding stage of the gear set connected to the first motor and the gear set connected to the second motor is different.

5. The extended-range powertrain according to claim 1, characterized in that: The first motor is a driving motor, and the first motor is used to be connected to the left front wheel; The second motor is a driving motor, and the second motor is used to be connected to the right front wheel; The third motor is a generator and is connected to an output shaft of the engine.

6. The extended-range powertrain according to claim 1 or 5, characterized in that: The first motor is fixedly connected to the housing of the engine via a fixing member, or the first motor and the engine share a housing; and / or The second motor is fixedly connected to the housing of the engine via a fixing member, or the second motor and the engine share a housing; and / or The third motor is fixedly connected to the housing of the engine via a fixing member, or the third motor and the engine share a housing.

7. The extended-range powertrain according to claim 1 or 5, characterized in that: Also includes: A left electric drive gear set, wherein the left electric drive gear set is arranged on the left side of the engine, and an input end of the left electric drive gear set is connected to the motor shaft of the first motor; The right electric drive gear set is arranged on the right side of the engine, and the input end of the right electric drive gear set is connected to the motor shaft of the second motor.

8. The extended-range powertrain according to claim 7, characterized in that: The left electric drive gear set and the right electric drive gear set are symmetrically arranged about a longitudinal center line of the engine.

9. The extended-range powertrain according to claim 7, characterized in that: The output end of the left electric drive gear set is used to be connected to the left wheel, the rotation axis of the input end of the left electric drive gear set is parallel to the rotation axis of the output end of the left electric drive gear set, and in a plane perpendicular to the left-right direction of the engine, the projection of the input end of the left electric drive gear set is staggered with the projection of the output end of the left electric drive gear set; The output end of the right electric drive gear set is used to be connected to the right wheel, the rotation axis of the input end of the right electric drive gear set is parallel to the rotation axis of the output end of the right electric drive gear set, and in a plane perpendicular to the left and right directions of the engine, the projection of the input end of the right electric drive gear set is staggered with the projection of the output end of the right electric drive gear set.

10. The extended-range powertrain according to claim 7, characterized in that: Also includes: A left front transmission shaft, the left front transmission shaft is connected to the output end of the left electric drive gear set, and the left front transmission shaft is parallel to the motor shaft of the first motor; A right front transmission shaft is connected to the output end of the right electric drive gear set, and the right front transmission shaft is parallel to the motor shaft of the second motor.

11. The extended-range powertrain according to claim 1 or 5, characterized in that: Also includes: The power generation system gear set is arranged at the rear of the engine, and the power generation system gear set is respectively connected to the engine and the third motor in a transmission manner.

12. The extended-range powertrain according to claim 11, characterized in that: The power generation system gear set includes a power generation assembly speed increasing gear and a generator gear shaft which are sequentially connected in transmission.

13. A vehicle, characterized in that: It comprises an extended-range powertrain according to any one of claims 1 to 12.

Images