Vehicle power system and vehicle

Abstract

The utility model discloses a vehicle power system and a vehicle. The vehicle power system comprises a motor assembly, an engine and a planet row assembly, the motor assembly comprises a shell assembly, a motor controller and a motor body, a containing space is formed in the shell assembly, the motor controller and the motor body are arranged in the containing space, and the motor body is provided with a motor shaft; the engine is provided with an engine shaft, and the engine shaft and the motor shaft are coaxially arranged; the planet row assembly comprises a sun gear, a planet gear, a gear ring and a planet carrier assembly which are connected with one another, the sun gear and a motor shaft are directly connected and coaxially arranged, and the planet carrier assembly is connected with an engine shaft; the engine is used for driving the motor assembly to generate electric power. Therefore, the motor controller and the motor body are jointly arranged in the containing space formed by the shell assembly, the size of the motor assembly is reduced, the motor assembly is connected with the engine shaft through the planet row assembly, the integration degree of a vehicle power system is improved, and space and cost are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle power system and a vehicle. BACKGROUND

[0002] In order to cope with the rising fuel prices and volatile international oil situation, China vigorously promotes the use of new energy, and the new energy industry has developed rapidly. Among them, the emergence of the range extending system has alleviated the range anxiety of new energy vehicles, and has been widely recognized by the market.

[0003] At present, the volume and weight of the vehicle power system are large, which leads to the risk of insufficient vehicle space and reduced endurance. CONTENT OF THE INVENTION

[0004] The main purpose of the present application is to provide a vehicle power system and a vehicle, which aims to solve the above technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a vehicle power system, which comprises a motor assembly, an engine and a planetary gear assembly. The motor assembly comprises a housing assembly, a motor controller and a motor main body. The housing assembly forms a containing space. The motor controller and the motor main body are arranged in the containing space. The motor main body has a motor shaft. The engine has an engine shaft, which is coaxially arranged with the motor shaft. The planetary gear assembly comprises a sun gear, a planet gear, a ring gear and a planet carrier assembly connected with each other. The sun gear is directly connected with the motor shaft and coaxially arranged. The planet carrier assembly is connected with the engine shaft. The engine is used to drive the motor assembly to generate power.

[0006] In some embodiments, the housing assembly comprises a partition wall, which divides the containing space into a first containing cavity and a second containing cavity. The motor controller is arranged in the first containing cavity, and the motor main body is at least partially arranged in the second containing cavity.

[0007] In some embodiments, the housing assembly further comprises a first housing and a second housing. The first housing cooperates with the partition wall to form the first containing cavity, and the second housing cooperates with the partition wall to form the second containing cavity. The first housing and the second housing are detachably connected.

[0008] In some embodiments, the motor assembly further comprises a fixing member. The first housing is provided with a first fixing hole, and the second housing is provided with a second fixing hole. The first fixing hole and the second fixing hole are communicated, and the fixing member is sequentially inserted into the first fixing hole and the second fixing hole.

[0009] In some embodiments, the motor assembly further comprises a sealing ring. The sealing ring is arranged between the first housing and the partition wall, and the first housing presses and holds the sealing ring on the partition wall.

[0010] In some embodiments, the partition wall is integrally formed with the second housing.

[0011] In some embodiments, the vehicle power system further comprises an electrical device, the motor assembly is electrically connected with the electrical device, and the motor controller is configured to convert the alternating current generated by the motor body into direct current.

[0012] In some embodiments, the planetary gears are respectively engaged with the sun gear and the ring gear, and the carrier assembly is connected with the planetary gears to support the planetary gears.

[0013] In some embodiments, the vehicle power system further comprises an input shaft and a dual-mass flywheel, the dual-mass flywheel is respectively connected with the input shaft and the engine shaft, and the engine shaft is connected with the carrier assembly through the input shaft.

[0014] To solve the above problems, the application provides a vehicle comprising the vehicle power system described above.

[0015] Compared with the prior art, the vehicle power system provided by the application comprises a motor assembly, an engine and a planetary gear set assembly. The motor assembly comprises a housing assembly, a motor controller and a motor body. The housing assembly forms a containing space. The motor controller and the motor body are arranged in the containing space. The motor body has a motor shaft. The engine has an engine shaft. The engine shaft is coaxially arranged with the motor shaft. The planetary gear set assembly comprises a sun gear, planetary gears, a ring gear and a carrier assembly which are connected with each other. The sun gear is directly connected with the motor shaft and coaxially arranged with the motor shaft. The carrier assembly is connected with the engine shaft. The engine is configured to drive the motor assembly to generate electric power. Through the above-mentioned implementation, the motor controller and the motor body are arranged in the containing space formed by the housing assembly, which reduces the volume of the motor assembly. The motor assembly is connected with the engine shaft through the planetary gear set assembly, without the need to arrange other additional transmission structures, which improves the integration of the vehicle power system and saves space and cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the application. Those skilled in the art can obtain other drawings according to these drawings without creative effort.

[0017] Figure 1 is a structural schematic diagram of a vehicle according to one or more embodiments of the application;

[0018] Figure 2 is a first perspective view of a motor assembly according to one or more embodiments of the application;

[0019] Figure 3 is a second perspective view of a motor assembly according to one or more embodiments of the application;

[0020] Figure 4 It is based on Figure 3 The diagram shown is a schematic representation of the motor assembly without the first housing shown.

[0021] Figure 5 This is a third-view schematic diagram of a motor assembly according to one or more embodiments of this application;

[0022] Figure 6 It is based on Figure 5 The diagram shows a cross-sectional view of the motor assembly along the AA direction;

[0023] Figure 7 This is a schematic diagram of the structure of a vehicle electrical system according to one or more embodiments of this application.

[0024] Reference numerals: Vehicle 1; Vehicle power system 2; Motor assembly 10; Housing assembly 11; Accommodating space 111; First accommodating cavity 1111; Second accommodating cavity 1112; Partition wall 112; First housing 113; First fixing hole 1131; Second housing 114; Second fixing hole 1141; Motor controller 12; Motor body 13; Motor shaft 131; Fixing component 14; Sealing ring 15; Engine 20; Engine shaft 21; Planetary gear assembly 30; Sun gear 31; Planetary gear 32; Ring gear 33; Planetary carrier assembly 34; Electrical equipment 40; Input shaft 50; Dual-mass flywheel 60. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment in a manner known to those of ordinary skill in the art.

[0029] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0030] In the description of the embodiments of the application, the term“a plurality of” means two or more (including two), and similarly, “a plurality of groups” means two or more groups (including two groups), and “a plurality of pieces” means two or more pieces (including two pieces).

[0031] In the description of the embodiments of the application, the technical 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 embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0032] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0033] In order to cope with the rising fuel prices and the fluctuating international oil situation, China vigorously promotes the use of new energy, and the new energy industry has developed rapidly. Among them, the emergence of the range extending system has alleviated the range anxiety of new energy vehicles, and has been widely recognized by the market.

[0034] At present, the volume and weight of the vehicle power system are large, which leads to the risk of insufficient vehicle space and reduced endurance.

[0035] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of a vehicle according to one or more embodiments of the present application.

[0036] The vehicle 1 can be a fuel car, a gas car or a new energy car, and the new energy car can be a hybrid car or a range extended car. The vehicle 1 can be a front drive vehicle or a four-wheel drive vehicle. The vehicle 1 comprises a vehicle power system 2, which can provide power for the vehicle 1 to drive the vehicle 1 to run.

[0037] Please refer to Figures 2-7 , Figure 1 is a structural schematic diagram of a vehicle according to one or more embodiments of the present application; Figure 2 is a first perspective view of a motor assembly according to one or more embodiments of the present application; Figure 3 is a second perspective view of a motor assembly according to one or more embodiments of the present application; Figure 4 is a structural schematic diagram of a motor assembly according to Figure 3 ; Figure 5 is a third perspective view of a motor assembly according to one or more embodiments of the present application; Figure 6 is a sectional view of a motor assembly along the A-A direction according to Figure 5 ; Figure 7 is a structural schematic diagram of a vehicle power system according to one or more embodiments of the present application.

[0038] To solve the above problems, the present application provides a vehicle power system 2, which comprises a motor assembly 10, an engine 20 and a planetary gear assembly 30. The motor assembly 10 comprises a housing assembly 11, a motor controller 12 and a motor body 13. The housing assembly 11 forms a containing space 111, the motor controller 12 and the motor body 13 are arranged in the containing space 111, and the motor body 13 has a motor shaft 131. The engine 20 has an engine shaft 21, which is coaxially arranged with the motor shaft 131. The planetary gear assembly 30 comprises a sun gear 31, a planet gear 32, a ring gear 33 and a planet carrier assembly 34, which are connected with each other. The sun gear 31 is directly connected with the motor shaft 131 and coaxially arranged, and the planet carrier assembly 34 is connected with the engine shaft 21. The engine 20 is used to drive the motor assembly 10 to generate power.

[0039] The housing assembly 11 is formed with a receiving space 111, and can accommodate the motor controller 12 and the motor body 13 through the receiving space 111 to provide fixation and protection for the motor controller 12 and the motor body 13. The motor body 13 can be a generator, and the engine 20 can be an engine including but not limited to a fuel engine, etc. The engine 20 can provide power for the motor body 13, so that the motor body 13 converts the power provided by the engine 20 into electric power. The motor controller 12 can be used to control the operation of the motor body 13, etc. The motor controller 12 and the motor body 13 are jointly arranged in the receiving space 111 formed by the housing assembly 11, compared with the mode that the motor controller 12 and the motor body 13 are independently arranged and connected through a line, such as the mode that the motor controller 12 and the motor body 13 are connected through a three-phase connection line, the volume of the motor assembly 10 is reduced, the space is saved, and the integration of the motor assembly 10 is improved.

[0040] The motor shaft 131 is directly connected with the sun gear 31 of the planetary gear assembly 30, the sun gear 31, the planet gear 32, the ring gear 33 and the planet carrier assembly 34 are connected with each other, and the planet carrier assembly 34 is connected with the engine shaft 21, so that the power output by the engine 20 is directly transmitted to the motor shaft 131 through the planetary gear assembly 30. In some application scenarios, the planet carrier assembly 34 can include a welded external gear, and is connected with the engine shaft 21 through the welded external gear. It can be understood that different degrees of freedom of the plurality of degrees of freedom of the planetary gear assembly 30 can be fixed to achieve different transmission ratios and power distribution modes. For example, one of the sun gear 31, the planet carrier assembly 34 and the ring gear 33 can be fixed. In some embodiments, the motor body 13 can be a high-speed motor, and can be connected with the engine shaft 21 through the planetary gear assembly 30 to reduce the speed, so that the high-efficiency region of the motor body 13 is better matched with the optimal fuel economy region of the engine 20, thereby reducing fuel consumption and saving cost. Therefore, no additional transmission structure, such as a parallel shaft transmission structure, needs to be arranged between the motor shaft 131 and the engine shaft 21, thereby reducing the volume and weight of the vehicle power system 2 and saving cost.

[0041] Through the above embodiments, the motor controller 12 and the motor body 13 are jointly arranged in the receiving space 111 formed by the housing assembly 11, the volume of the motor assembly 10 is reduced, and the motor assembly 10 is connected with the engine shaft 21 through the planetary gear assembly 30 without the need to arrange other additional transmission structures, thereby improving the integration of the vehicle power system 2, saving space and cost.

[0042] In some embodiments, the housing assembly 11 comprises a partition wall 112, the partition wall 112 divides the accommodation space 111 into a first accommodation cavity 1111 and a second accommodation cavity 1112, the motor controller 12 is arranged in the first accommodation cavity 1111, and the motor body 13 is at least partially arranged in the second accommodation cavity 1112. The motor controller 12 can be at least partially fixed to one side of the partition wall 112 facing the first accommodation cavity 1111, and the motor body 13 can be at least partially fixed to one side of the partition wall 112 facing the second accommodation cavity 1112, so that the first accommodation cavity 1111 and the second accommodation cavity 1112 share the partition wall 112 to support and fix the motor controller 12 and the motor body 13, further improving the integration of the motor assembly 10. In this way, the motor controller 12 and the motor body 13 can be separated in the first accommodation cavity 1111 and the second accommodation cavity 1112 by the partition wall 112, so that the motor controller 12 and the motor body 13 are protected by the first accommodation cavity 1111 and the second accommodation cavity 1112 respectively, the risk of damage to the motor controller 12 caused by interference between the motor body 13 and the motor controller 12 during operation is alleviated, and the reliability of the motor assembly 10 is improved.

[0043] In some embodiments, the housing assembly 11 further comprises a first housing 113 and a second housing 114, the first housing 113 cooperates with the partition wall 112 to form the first accommodation cavity 1111, the second housing 114 cooperates with the partition wall 112 to form the second accommodation cavity 1112, and the first housing 113 is detachably connected with the second housing 114. In this way, the first housing 113 and the second housing 114 cooperate with the partition wall 112 to form the first accommodation cavity 1111 and the second accommodation cavity 1112 respectively, which facilitates more flexible control of the shape and volume of the first accommodation cavity 1111 and the second accommodation cavity 1112, and the first housing 113 and the second housing 114 are detachably connected, which facilitates maintenance and replacement of the motor assembly 10.

[0044] In some embodiments, the motor assembly 10 further comprises a fixing member 14, the first housing 113 is provided with a first fixing hole 1131, the second housing 114 is provided with a second fixing hole 1141, the first fixing hole 1131 and the second fixing hole 1141 are communicated, and the fixing member 14 is sequentially inserted into the first fixing hole 1131 and the second fixing hole 1141. The fixing member 14 can include but is not limited to bolts, latches, etc. For example, the fixing member 14 can be a bolt, the bolt is sequentially inserted into the first fixing hole 1131 and the second fixing hole 1141, and the first fixing hole 1131 and the second fixing hole 1141 can be provided with internal threads, so that the bolt can be used to fixedly connect the first housing 113 and the second housing 114 through the first fixing hole 1131 and the second fixing hole 1141. In this way, the fixing member 14 is inserted into the first fixing hole 1131 and the second fixing hole 1141, which improves the connection stability of the first housing 113 and the second housing 114 and facilitates disassembly.

[0045] In some embodiments, the motor assembly 10 further comprises a sealing ring 15, the sealing ring 15 is arranged between the first shell 113 and the partition wall 112, and the first shell 113 holds the sealing ring 15 on the partition wall 112. The sealing ring 15 can be annular, and the sealing ring 15 can be made of plastic, rubber or other materials. The first shell 113 holds the sealing ring 15 on the partition wall 112, so that the sealing ring 15 can be fully compressed, thereby facilitating the sealing ring 15 to provide sealing between the first shell 113 and the partition wall 112, and thereby alleviating the risk of external impurities such as dust and water vapor entering the first accommodating cavity 1111 and causing damage to the motor controller 12.

[0046] In some embodiments, the partition wall 112 is integrally formed with the second shell 114. In this way, the partition wall 112 and the second shell 114 do not need to be assembled additionally, which improves the connection stability of the partition wall 112 and the second shell 114, facilitates the partition wall 112 to more stably divide the accommodating space 111 into the first accommodating cavity 1111 and the second accommodating cavity 1112, and facilitates the partition wall 112 to better support and fix the motor controller 12 and the motor body 13.

[0047] In some embodiments, the vehicle power system 2 further comprises an electrical device 40, and the motor assembly 10 is electrically connected with the electrical device 40, and the motor controller 12 is configured to convert the alternating current generated by the motor body 13 into direct current. The electrical device 40 refers to a device that can work by using direct current. It can be understood that the power generated by the engine 20 driving the motor body 13 is alternating current, which can be converted into direct current by the motor controller 12, thereby facilitating the electrical device 40 to utilize the power generated by the motor body 13.

[0048] In some embodiments, the planetary gears 32 are respectively engaged with the sun gear 31 and the ring gear 33, and the planet carrier assembly 34 is connected with the planetary gears 32 to support the planetary gears 32. In this way, the sun gear 31, the planetary gears 32, the ring gear 33 and the planet carrier assembly 34 can transmit power to each other in different application scenarios, thereby facilitating the engine shaft 21 to more flexibly output power to the motor shaft 131.

[0049] In some embodiments, the vehicle power system 2 further comprises an input shaft 50 and a dual mass flywheel 60, the dual mass flywheel 60 being connected with the input shaft 50 and the engine shaft 21 respectively, the engine shaft 21 being connected with the carrier assembly 34 through the input shaft 50. The engine shaft 21 is connected with the input shaft 50 through the dual mass flywheel 60, and the imbalance of the engine 20, especially when running at low speed, can be reduced through the dual mass flywheel 60, so as to reduce the idling speed, make the engine 20 run in a more economical speed range, effectively reduce the noise, and further improve the stability of the first power system. In some application scenarios, the dual mass flywheel 60 is provided with a tooth disc, which is used for signal detection in cooperation with a sensor at the position of the crankshaft of the engine 20, further improving the integration of the vehicle power system 2. The engine shaft 21 is connected with the carrier assembly 34 through the input shaft 50, thereby further facilitating the power transmission between the engine shaft 21 and the motor shaft 131, and improving the stability of the power transmission between the engine shaft 21 and the motor shaft 131.

[0050] In summary, the vehicle power system 2 provided by the application comprises a motor assembly 10, an engine 20 and a planetary gear assembly 30. The motor assembly 10 comprises a housing assembly 11, a motor controller 12 and a motor body 13. The housing assembly 11 forms a containing space 111. The motor controller 12 and the motor body 13 are arranged in the containing space 111. The motor body 13 has a motor shaft 131. The engine 20 has an engine shaft 21. The engine shaft 21 is coaxially arranged with the motor shaft 131. The planetary gear assembly 30 comprises a sun gear 31, a planet gear 32, a ring gear 33 and a carrier assembly 34 which are connected with each other. The sun gear 31 is directly connected with the motor shaft 131 and coaxially arranged with the motor shaft 131. The carrier assembly 34 is connected with the engine shaft 21. The engine 20 is used to drive the motor assembly 10 to generate electric power. Through the above-mentioned embodiments, the motor controller 12 and the motor body 13 are arranged in the containing space 111 formed by the housing assembly 11, which reduces the volume of the motor assembly 10. The motor assembly 10 is connected with the engine shaft 21 through the planetary gear assembly 30, without the need to arrange other additional transmission structures, which improves the integration of the vehicle power system 2, saves space and cost. Compared with other vehicle power systems, the vehicle power system 2 provided by the application has smaller volume, higher integration and lower cost.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the claims and the specification of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle powertrain system, characterized by, The vehicle power system comprises: a motor assembly comprising a housing assembly, a motor controller and a motor body, the housing assembly is formed with a containing space, the motor controller and the motor body are arranged in the containing space, the motor body has a motor shaft; an engine having an engine shaft, the engine shaft is coaxially arranged with the motor shaft; a planetary gear set assembly comprising a sun gear, a planet gear, a ring gear and a planet carrier assembly connected with each other, the sun gear is directly connected with the motor shaft and coaxially arranged, the planet carrier assembly is connected with the engine shaft; wherein the engine is used to drive the motor assembly to generate electric power.

2. The vehicle powertrain system of claim 1, wherein, The housing assembly comprises a partition wall, the partition wall divides the containing space into a first containing cavity and a second containing cavity, the motor controller is arranged in the first containing cavity, and the motor body is at least partially arranged in the second containing cavity.

3. The vehicle powertrain system of claim 2, wherein, The housing assembly further comprises a first housing and a second housing, the first housing cooperates with the partition wall to form the first containing cavity, the second housing cooperates with the partition wall to form the second containing cavity, and the first housing and the second housing are detachably connected.

4. The vehicle powertrain system of claim 3, wherein, The motor assembly further comprises a fixing member, the first housing is provided with a first fixing hole, the second housing is provided with a second fixing hole, the first fixing hole and the second fixing hole are communicated, and the fixing member is sequentially inserted into the first fixing hole and the second fixing hole.

5. The vehicle powertrain system of claim 3, wherein, The motor assembly further comprises a sealing ring, the sealing ring is arranged between the first housing and the partition wall, and the first housing presses and holds the sealing ring on the partition wall.

6. The vehicle powertrain system of claim 3, wherein, The partition wall is integrally formed with the second housing.

7. The vehicle powertrain system of claim 3, wherein, The vehicle power system further comprises an electric device, the motor assembly is electrically connected with the electric device, and the motor controller is used to convert alternating current generated by the motor body into direct current.

8. The vehicle powertrain system of claim 1, wherein, The planet gears are respectively engaged with the sun gear and the ring gear, and the planet carrier assembly is connected with the planet gears to support the planet gears.

9. The vehicle powertrain system of claim 1, wherein, The vehicle power system further comprises an input shaft and a dual-mass flywheel, the dual-mass flywheel is connected with the input shaft and the engine shaft respectively, and the engine shaft is connected with the planet carrier assembly through the input shaft.

10. A vehicle characterized by comprising: The vehicle comprises the vehicle power system according to any one of claims 1-9.

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