Chassis assembly for vehicle and vehicle

Abstract

The invention relates to the technical field of vehicle chassis, and discloses a chassis assembly for a vehicle and the vehicle, the chassis assembly comprises a frame, a first drive axle, a second drive axle, a first motor and a second motor, the first drive axle is arranged on the frame, the first drive axle comprises a first drive shaft, and the second drive axle comprises a second drive shaft; the second drive axle is arranged on the frame and located on the rear side of the first drive axle, the second drive axle comprises a second drive shaft, the first motor is arranged on the frame, located on the rear side of the first drive axle and in power connection with the first drive shaft, and the second motor is arranged on the frame. The second motor is located on the rear side of the second drive axle and is in power connection with the second drive shaft. The technical problem that the chassis of the new energy automobile is matched with the distributed motor is solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle chassis, and in particular to a chassis assembly for a vehicle and a vehicle. Background Art

[0002] With the development and growth of new energy vehicles, the application scenarios of new energy vehicles are becoming more and more extensive. In new energy vehicles, the use of distributed drive systems can achieve independent drive and control of each wheel. The chassis, as an important architecture of new energy vehicles, not only affects the driving and handling performance of new energy vehicles, but also determines the manufacturing cost of new energy vehicles. There are a large number of distributed motors in new energy vehicles using distributed drive systems. Distributed motors are larger than traditional motors, and a chassis that can accommodate distributed motors needs to be designed separately. However, in related technologies, the chassis of traditional new energy vehicles is only suitable for traditional single-motor-driven vehicles, and the chassis has poor compatibility with distributed motors, making it difficult to install large-volume and large-volume distributed motors. Summary of the invention

[0003] The present application provides a chassis assembly for a vehicle and a vehicle, which solves the technical problem of poor compatibility between the chassis of new energy vehicles and distributed motors.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0005] In a first aspect, an embodiment of the present application provides a chassis assembly for a vehicle, the chassis assembly including a frame, a first drive axle, a second drive axle, a first motor and a second motor, the first drive axle being arranged on the frame, the first drive axle including a first drive shaft, the second drive axle being arranged on the frame and located at a rear side of the first drive axle, the second drive axle including a second drive shaft, the first motor being arranged on the frame, at least a portion of the first motor being located at a rear side of the first drive axle and being dynamically connected to the first drive shaft, the second motor being arranged on the frame, at least a portion of the second motor being located at a rear side of the second drive axle and being dynamically connected to the second drive shaft.

[0006] The chassis assembly for a vehicle proposed in an embodiment of the present application, at least a portion of the first motor is located on the rear side of the first drive axle and is dynamically connected to the first drive shaft, and at least a portion of the second motor is located on the rear side of the second drive axle and is dynamically connected to the second drive shaft. On the one hand, the first motor and the second motor are respectively arranged on the front and rear sides of the chassis assembly of the vehicle, which can respectively provide power to the front and rear wheels of the vehicle, and independently control the rotation speed of the front and rear wheels, thereby reducing power transmission losses, improving transmission efficiency, and improving vehicle handling and driving stability. On the other hand, it can also reduce the occupation of the middle space of the vehicle, making the internal structure of the vehicle more compact, and making the chassis more compatible with the distributed motors.

[0007] Optionally, the chassis assembly further includes an energy component, which is disposed on the vehicle frame to provide energy for the first motor and the second motor, and the energy component is located between the first motor and the second drive axle.

[0008] The energy component is arranged between the first motor and the second motor. On the one hand, the energy component is arranged between the two motors, which can more effectively utilize the space of the chassis assembly and make the entire chassis assembly more compact. For larger distributed motors, a more compact chassis assembly can make the distributed motor more compatible with the chassis assembly. On the other hand, arranging the energy component between the two motors helps to achieve weight balance between the front and rear axles, thereby improving the handling performance of the vehicle.

[0009] Optionally, the energy component includes a battery pack and / or a fuel tank.

[0010] The energy component includes a battery pack and / or a fuel tank, which can effectively provide a stable power source for the first motor and the second motor, thereby improving the stability and reliability of the vehicle during driving.

[0011] Optionally, the first drive shaft includes a first left half-shaft and a first right half-shaft, and the first left half-shaft is opposite to and spaced from the first right half-shaft along the left-right direction of the vehicle. The first motor includes a first left motor and a first right motor, and the first left motor is power-connected to the first left half-shaft, and the first right motor is power-connected to the first right half-shaft. The second drive shaft includes a second left half-shaft and a second right half-shaft, and the second left half-shaft is opposite to and spaced from the second right half-shaft along the left-right direction of the vehicle. The second motor includes a second left motor and a second right motor, and the second left motor is power-connected to the second left half-shaft, and the second right motor is power-connected to the second right half-shaft.

[0012] The use of multiple motors driving independently can reduce the number of transmission components such as the intermediate differential, making the transmission chain simpler and more compact, further reducing transmission losses and improving energy efficiency. Since the wheels can be controlled independently, the vehicle can more accurately adjust the wheel speed and torque under complex conditions such as turning or braking, improving the vehicle's handling and stability.

[0013] Optionally, the chassis assembly further includes a first sub-frame and a second sub-frame, the first sub-frame and the second sub-frame are both mounted on the frame, the first motor is mounted on the first sub-frame, and the second motor is mounted on the second sub-frame.

[0014] The first motor is installed on the first subframe, and the second motor is installed on the second subframe, which can realize power distribution and drive control more flexibly, so that the vehicle can independently adjust the power output of the front and rear wheels according to road conditions and driving requirements, thereby improving the vehicle's power and handling.

[0015] Optionally, the first subframe includes a first longitudinal beam and a first cross beam, the number of the first longitudinal beams is two and the beams are spaced apart in the left-right direction, the first cross beam is connected to the two first longitudinal beams, the first cross beam includes a plurality of first sub-cross beams that are separately arranged, and the second subframe includes a second longitudinal beam and a second cross beam, the number of the second longitudinal beams is two and the beams are spaced apart in the left-right direction, the second cross beam is connected to the two second longitudinal beams, and the second cross beam includes a plurality of second sub-cross beams that are separately arranged.

[0016] Specifically, the first crossbeam includes a plurality of first sub-crossbeams that are separately arranged, and the second crossbeam includes a plurality of second sub-crossbeams that are separately arranged, so that the lengths of the first sub-frame and the second sub-frame in the left-right direction of the vehicle body can be adjusted. On the one hand, by adjusting the lengths of the first sub-frame and the second sub-frame in the left-right direction of the vehicle body, the first sub-frame and the second sub-frame can be adapted to a variety of vehicle models, thereby expanding the applicable scope of the first sub-frame and the second sub-frame, thereby expanding the applicable scope of the chassis assembly and reducing the production and manufacturing costs. On the other hand, the adjustable lengths of the first sub-frame and the second sub-frame in the left-right direction of the vehicle body mean that the structural relationship of the suspension system can be adjusted more finely, which can not only reduce the probability of interference of the suspension system, but also optimize the shock absorption effect of the suspension system by adjusting the length of the first crossbeam, thereby reducing the interference of road vibration on the vehicle and improving the comfort of the vehicle.

[0017] Optionally, the multiple first sub-cross beams include a first connecting beam and two first fixed beams, the two first fixed beams are respectively fixedly connected to the two first longitudinal beams, and the first connecting beam is connected between the two first fixed beams; the multiple second sub-cross beams include a second connecting beam and two second fixed beams, the two second fixed beams are respectively fixedly connected to the two second longitudinal beams, and the second connecting beam is connected between the two second fixed beams.

[0018] The first connecting beam is connected between the two first fixed beams, and the second connecting beam is connected between the two second fixed beams. The lengths of the first connecting beam and the second connecting beam can be changed, thereby adjusting the lengths of the first sub-frame and the second sub-frame in the left-right direction of the vehicle body, expanding the application range of the chassis assembly, and enabling the chassis to be adjusted according to the size of the distributed motor, so that the chassis is more compatible with the distributed motor.

[0019] Optionally, the chassis assembly further includes a plurality of first suspension brackets and a plurality of second suspension brackets, the plurality of first suspension brackets are arranged on the first cross beam, the first motor is mounted on the plurality of first suspension brackets, the plurality of second suspension brackets are arranged on the second cross beam, and the second motor is mounted on the plurality of second suspension brackets.

[0020] Multiple first suspension brackets are arranged on the first cross beam, the first motor is installed on the multiple first suspension brackets, multiple second suspension brackets are arranged on the second cross beam, and the second motor is installed on the multiple second suspension brackets. On the one hand, the stability of the motor installation can be improved, and on the other hand, the stability of the vehicle can be enhanced and the bumpy feeling of the vehicle can be reduced.

[0021] Optionally, the chassis assembly further includes a vibration-damping structure, and both the first sub-frame and the second sub-frame are provided with the vibration-damping structure, the vibration-damping structure includes a spring and a shock absorber, and the spring is sleeved on the shock absorber.

[0022] Since distributed motors are usually large in size, it is necessary to reduce the space occupied by components on the chassis assembly as much as possible. Therefore, the spring and shock absorber of the vibration reduction structure are installed together, which can greatly reduce the space occupied by the vibration reduction structure in the chassis assembly, improve the space utilization of the chassis assembly, and make the chassis have enough space to accommodate the distributed motor, thereby improving the adaptability of the chassis and the distributed motor.

[0023] Optionally, the chassis assembly also includes a front suspension system, which includes two double wishbone structures, one end of each double wishbone structure is connected to the corresponding first longitudinal beam, and the other end of the double wishbone structure is connected to the corresponding front wheel. The chassis assembly also includes a steering gear, which is mounted on the two first longitudinal beams, and at least a portion of the steering gear is located on the front side of the first drive axle.

[0024] At least part of the steering gear is located in front of the first drive axle, which means that the steering input can act more directly on the front wheels, reducing the delay of power transmission and improving the vehicle's handling response speed. In the double wishbone front suspension system, the front placement of the steering gear helps reduce the interference between the steering gear and the first drive axle, thereby improving the overall efficiency of the steering system.

[0025] In a second aspect, the present application also provides a vehicle, including the chassis assembly of any one of the embodiments of the present application.

[0026] In the vehicle proposed in the embodiment of the present application, at least a portion of the first motor is located at the rear side of the first drive axle and is dynamically connected to the first drive shaft, and at least a portion of the second motor is located at the rear side of the second drive axle and is dynamically connected to the second drive shaft. On the one hand, the first motor and the second motor are respectively arranged on the front and rear sides of the chassis assembly of the vehicle, which can respectively provide power to the front and rear wheels of the vehicle, independently control the rotation speed of the front and rear wheels, reduce power transmission losses, improve transmission efficiency, and improve vehicle handling and driving stability. On the other hand, it can also reduce the occupation of the middle space of the vehicle, make the internal structure of the vehicle more compact, and make the chassis more compatible with the distributed motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0029] Figure 2 for Figure 1 A top view of

[0030] Figure 3 A first suspension bracket and a second suspension bracket are shown;

[0031] Figure 4 for Figure 3 Bottom view of

[0032] Figure 5 A front view of a vehicle provided in an embodiment of the present application;

[0033] Figure 6 A rear view of a vehicle provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of the structure of a first motor provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of the structure of a second motor provided in an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of the structure of a first sub-frame provided in an embodiment of the present application;

[0037] Fig.10 A schematic structural diagram of the vibration reduction structure provided in an embodiment of the present application.

[0038] [Description of Reference Numerals]

[0039] Vehicle 100; chassis assembly 100A; first drive axle 120; first left half shaft 121; first right half shaft 122; second drive axle 130; second left half shaft 131; second right half shaft 132; first motor 140; first left motor 141; first right motor 142; second motor 150; second left motor 151; second right motor 152; energy component 160; first subframe 170; first longitudinal beam 171; first cross beam 172; second subframe 180; second longitudinal beam 181; second cross beam 182; first sub-cross beam 190; first connecting beam 191; first fixed beam 192; vibration reduction structure 210; spring 211; shock absorber 212; steering gear 220; first suspension bracket 230; second suspension bracket 240; double wishbone 250; front-rear direction X; left-right direction Y. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0042] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0045] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0046] With the development and growth of new energy vehicles, the application scenarios of new energy vehicles are becoming more and more extensive. In new energy vehicles, a distributed drive system is adopted, and multiple distributed motors are set on the new energy vehicle, which can realize the individual drive and control of the speed of each wheel of the vehicle, thereby improving the vehicle's handling performance.

[0047] As an important structure of new energy vehicles, the chassis not only affects the driving control of new energy vehicles, but also determines the manufacturing cost of new energy vehicles. Compared with traditional motors, each distributed motor integrates multiple sub-motors, so the distributed motors will be relatively large. However, in related technologies, the chassis of traditional new energy vehicles is only suitable for traditional single-motor driven vehicles. The chassis has poor compatibility with distributed motors, and it is difficult to install large-volume and large-volume distributed motors.

[0048] In view of this, in order to solve the problem of matching the chassis of new energy vehicles with distributed motors, and at the same time ensure the stability and reliability of vehicle operation, some embodiments of the present application provide a chassis assembly of a vehicle and a vehicle, the chassis assembly of the vehicle includes a frame, a first drive axle, a second drive axle, a first motor and a second motor.

[0049] The first drive axle is arranged on the frame, the first drive axle includes a first drive shaft, the second drive axle is arranged on the frame and is located at the rear side of the first drive axle, the second drive axle includes a second drive shaft, the first motor is arranged on the frame, at least a part of the first motor is located at the rear side of the first drive axle and is dynamically connected to the first drive shaft, at least a part of the second motor is arranged on the frame, the second motor is located at the rear side of the second drive axle and is dynamically connected to the second drive shaft.

[0050] In the above scheme, at least part of the first motor is located on the rear side of the first drive axle and is connected to the power of the first drive shaft, which can transmit power directly to the first drive shaft, reduce power loss caused by transmission, and improve the power transmission efficiency of the first motor. At least part of the second motor is located on the rear side of the second drive axle, which can reduce the space occupied by the front side of the second drive axle (the middle of the chassis assembly) and expand the space on the front side of the second drive axle so that it can accommodate larger energy components.

[0051] The front-to-rear direction disclosed in the embodiment of the present application is parallel to the length direction of the vehicle.

[0052] The left-right direction disclosed in the embodiment of the present application is parallel to the width direction of the vehicle.

[0053] For the convenience of description, the following embodiments are described by taking a chassis assembly for a vehicle according to one embodiment of the present application as an example.

[0054] Please refer to Figures 1 to 10 , Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0055] Figure 2 for Figure 1 A top view of Figure 3 A first suspension bracket and a second suspension bracket are shown; Figure 4 for Figure 3 Bottom view of Figure 5 A front view of a vehicle provided in an embodiment of the present application; Figure 6 A rear view of a vehicle provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of a first motor provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure of a second motor provided in an embodiment of the present application;

[0056] Fig. 9 A schematic diagram of the structure of a first sub-frame provided in an embodiment of the present application; Fig.10 A schematic structural diagram of the vibration reduction structure provided in an embodiment of the present application.

[0057] In the present embodiment, the chassis assembly 100A for the vehicle 100 includes a vehicle frame, a first drive axle 120, a second drive axle 130, a first motor 140 and a second motor 150. The first drive axle 120 is arranged on the vehicle frame, the first drive axle 120 includes a first drive shaft, the second drive axle 130 is arranged on the vehicle frame and is located at the rear side of the first drive axle 120, and the second drive axle 130 includes a second drive shaft; the first motor 140 is arranged on the vehicle frame, at least a portion of the first motor 140 is located at the rear side of the first drive axle 120 and is dynamically connected to the first drive shaft, the second motor 150 is arranged on the vehicle frame, at least a portion of the second motor 150 is located at the rear side of the second drive axle 130 and is dynamically connected to the second drive shaft.

[0058] The first drive axle 120 is arranged on the vehicle frame, the first drive axle 120 can be fixedly connected to the vehicle frame, the first drive axle 120 can be arranged on the front side of the vehicle frame, the second drive axle 130 can be fixedly connected to the vehicle frame, the second drive axle 130 can be arranged on the rear side of the vehicle frame, and also arranged on the rear side of the first drive axle 120. The first drive axle 120 and the second drive axle 130 are arranged on the vehicle frame, so as to realize the bearing of the weight of the vehicle frame and the vehicle 100 and ensure the stability of the operation of the vehicle 100.

[0059] The first motor 140 is arranged on the vehicle frame, and at least part of the first motor 140 is located at the rear side of the first drive axle 120, that is, another part of the first motor 140 is arranged between the first drive axle 120 and the second drive axle 130. The chassis assembly 100A may also include a steering gear 220. The front suspension of the vehicle 100 adopts a double wishbone front suspension, and the steering gear 220 is used to control the steering of the front wheels of the vehicle 100. The first motor 140 is arranged at the rear side of the first drive axle 120, which can reduce the occupied space at the front side of the first drive axle 120, so that the space at the front side of the first drive axle 120 is larger, so that the steering gear 220 can be arranged at the front side of the first drive axle 120. For the vehicle 100 adopting the double wishbone front suspension, the steering gear 220 is arranged at the front side of the first drive axle 120, which is conducive to improving the steering performance of the vehicle 100. Specifically, the steering gear 220 is located in front of the first drive axle 120, which means that the steering input can act more directly on the front wheels, reducing the delay of power transmission and improving the control response speed of the vehicle 100. In the double wishbone front suspension system, the front placement of the steering gear 220 helps to reduce the interference between the steering gear 220 and the first drive axle 120, thereby improving the overall efficiency of the steering system.

[0060] The first drive axle 120 includes a first drive shaft, which is respectively connected to the front wheels of the vehicle 100 to drive the front wheels of the vehicle to rotate. The first motor 140 is connected to the first drive shaft in power, and the first motor 140 can transmit power to the front wheels of the vehicle 100 by driving the first drive shaft.

[0061] At least part of the second motor 150 is arranged on the rear side of the second drive axle 130. The second motor 150 is dynamically connected to the second drive shaft, which can effectively expand the space in front of the second drive axle 130, so that the accommodation space in the middle of the chassis is larger and can accommodate more or larger components. For example, the middle space of the chassis is expanded, and a larger battery or fuel tank can be arranged in the middle of the chassis to increase the cruising range of the vehicle 100.

[0062] Specifically, at least a portion of the first motor 140 is located on the rear side of the first drive axle 120 and is dynamically connected to the first drive shaft, and at least a portion of the second motor 150 is located on the rear side of the second drive axle 130 and is dynamically connected to the second drive shaft. On the one hand, the first motor 140 and the second motor 150 are respectively arranged on the front and rear sides of the chassis assembly 100A of the vehicle 100, which can respectively provide power to the front and rear wheels of the vehicle 100, independently control the rotation speeds of the front and rear wheels, reduce power transmission losses, improve transmission efficiency, and improve the handling and driving stability of the vehicle 100. On the other hand, it can also reduce the occupation of the middle space of the vehicle 100, make the internal structure of the vehicle 100 more compact, and make the chassis more compatible with the distributed motors.

[0063] Please refer to Figures 1 to 10 In this embodiment, the structure of the first motor 140 is the same as the structure of the second motor 150 .

[0064] Since the first motor 140 is disposed at the rear side of the first drive axle 120 and the second motor 150 is disposed at the rear side of the second drive axle 130, the orientations of the first motor 140 and the second motor 150 can be the same, that is, the positional relationship between the first drive axle 120 and the first motor 140 is the same as the positional relationship between the second drive axle 130 and the second motor 150. The first motor 140 and the second motor 150 have the same structure, and it can be understood that the first motor 140 and the second motor 150 are the same in weight, structure and materials used, and in the same vehicle 100, the positions of the first motor 140 and the second motor 150 can be interchanged.

[0065] Specifically, the first motor 140 and the second motor 150 have the same structure. In the process of manufacturing the car, only the same motor needs to be produced to be applicable to different positions of the vehicle 100, which greatly reduces the manufacturing cost of automobile production, reduces the design cost of the engine model, and thus reduces the manufacturing cost of the whole vehicle. Moreover, the first motor 140 and the second motor 150 have the same structure, and there is no need to prepare a variety of spare parts during maintenance, which can greatly improve maintenance efficiency and reduce maintenance costs. Moreover, in the distributed drive system, the use of distributed motors of the same model makes it easier to achieve precise control and distribution of driving force, thereby improving the controllability and driving stability of the vehicle 100.

[0066] Please refer to Figures 1 to 10 In this embodiment, the chassis assembly 100A further includes an energy component 160 , which is disposed on the vehicle frame to provide energy for the first motor 140 and the second motor 150 , and the energy component 160 is located between the first motor 140 and the second drive axle 130 .

[0067] The energy component 160 is arranged on the vehicle frame to provide energy for the first motor and the second motor 150, and the energy required by the first motor 140 and the motor comes from the energy component 160. The energy component 160 is located between the first motor 140 and the second drive axle 130, that is, the energy component 160 is arranged between the first motor 140 and the second motor 150. On the one hand, the energy component 160 is arranged between the two motors, which can more effectively utilize the space of the chassis assembly 100A and make the entire chassis assembly 100A more compact. For larger distributed motors, a more compact chassis assembly 100A can make the distributed motors more compatible with the chassis assembly 100A. On the other hand, arranging the energy component 160 between the two motors helps to achieve weight balance between the front and rear axles, thereby improving the handling performance of the vehicle 100.

[0068] Moreover, by arranging the energy component 160 between the first motor 140 and the second drive bridge 130 , the energy component 160 can be closer to the motor, thereby reducing energy loss during transmission and improving the energy utilization efficiency of the power system.

[0069] It is understandable that during the operation of the vehicle 100, the energy component 160 provides power to the first motor 140 and the second motor 150. During this process, the energy component 160 may generate a certain amount of heat. By arranging the energy component 160 between the first motor 140 and the second motor 150, the wind flow generated by the motor can be used to dissipate the heat, thereby improving the heat dissipation efficiency of the energy component 160.

[0070] Please refer to Figures 1 to 10 In this embodiment, the energy component 160 includes a battery pack and / or a fuel tank.

[0071] The energy component 160 can be a battery pack, a fuel tank, or a combination of a fuel tank and a battery pack. For an extended-range vehicle, the energy component 160 can be a combination of a battery pack and a fuel tank. For a pure electric vehicle, the energy component 160 can be a battery pack.

[0072] Furthermore, the energy component 160 includes a battery pack and / or a fuel tank, which can effectively provide a stable power source for the first motor 140 and the second motor 150, thereby improving the stability and reliability of the vehicle 100 during driving.

[0073] Please refer to Figures 1 to 10 In this embodiment, the first drive shaft includes a first left half shaft 121 and a first right half shaft 122. Along the left-right direction Y of the vehicle 100, the first left half shaft 121 and the first right half shaft 122 are opposite and spaced apart. The first motor 140 includes a first left motor 141 and a first right motor 142. The first left motor 141 is power-connected to the first left half shaft 121, and the first right motor 142 is power-connected to the first right half shaft 122. The second drive shaft includes a second left half shaft 131 and a second right half shaft 132. Along the left-right direction Y of the vehicle 100, the second left half shaft 131 and the second right half shaft 132 are opposite and spaced apart. The second motor 150 includes a second left motor 151 and a second right motor 152. The second left motor 151 is power-connected to the second left half shaft 131, and the second right motor 152 is power-connected to the second right half shaft 132.

[0074] The first motor 140 includes a first left motor 141 and a first right motor 142. The first left motor 141 is connected to the first left semi-shaft 121 by power, and the first right motor 142 is connected to the first right semi-shaft 122 by power. The first left motor 141 controls the rotation speed of the first left semi-shaft 121, and the first right motor 142 controls the rotation speed of the first right semi-shaft 122. In this way, the first motor 140 can independently control the rotation speed of the front wheels of the new energy vehicle. During the turning process of the vehicle 100, the rotation speeds of the two front wheels of the vehicle 100 are different. Compared with traditional vehicles, the first left motor 141 and the first right motor 142 can directly control the rotation speed of the front wheels of the vehicle 100 without setting a differential, which greatly improves the handling performance of the vehicle 100 and also improves the stability and reliability of the operation of the vehicle 100.

[0075] The second motor 150 includes a second left motor 151 and a second right motor 152, the second left motor 151 is connected to the second left axle 131, the second right motor 152 is connected to the second right axle 132, the second left motor 151 controls the speed of the second left axle 131, and the second right motor 152 controls the speed of the second right axle 132, so that the second motor 150 can independently control the speed of the front wheels of the new energy vehicle. During the turning process of the vehicle 100, the speeds of the two rear wheels of the vehicle 100 are different. Compared with traditional vehicles, the second left motor 151 and the second right motor 152 can directly control the speeds of the rear wheels of the vehicle 100 without setting a differential, which greatly improves the handling performance of the vehicle 100 and also improves the stability and reliability of the operation of the vehicle 100.

[0076] Specifically, the first left motor 141 is power-connected to the first left half-shaft 121, the first right motor 142 is power-connected to the first right half-shaft 122, the second left motor 151 is power-connected to the second left half-shaft 131, and the second right motor 152 is power-connected to the second right half-shaft 132. Each wheel can be driven independently, so that the vehicle 100 has a greater power output. The multiple motors work together to release huge torque instantly, provide good acceleration performance, and achieve optimal energy distribution according to different driving conditions and driving requirements, which helps to extend the cruising range of the vehicle 100 and improve energy utilization efficiency.

[0077] The use of multiple motors driving independently can also reduce transmission components such as the intermediate differential, making the transmission chain simpler and more compact, further reducing transmission losses and improving energy efficiency. Since the wheels can be independently controlled, the vehicle 100 can more accurately adjust the wheel speed and torque under complex conditions such as turning or braking, thereby improving the controllability and stability of the vehicle 100. By independently controlling the wheel speed, the vehicle 100 can also achieve functions such as rotating in place.

[0078] Please refer to Figures 1 to 10 In this embodiment, the chassis assembly 100A further includes a first sub-frame 170 and a second sub-frame 180 , both of which are mounted on the frame, the first motor 140 is mounted on the first sub-frame 170 , and the second motor 150 is mounted on the second sub-frame 180 .

[0079] The chassis assembly 100A includes a first subframe 170 and a second subframe 180, and the first subframe 170 and the second subframe 180 are respectively arranged on the front and rear sides of the chassis assembly 100A, that is, the front and rear sides of the vehicle 100. The first subframe 170 and the second subframe 180 are both mounted on the frame. Exemplarily, the first subframe 170 and the second subframe 180 can be connected through the frame. The first motor 140 is mounted on the first subframe 170, and the second motor 150 is mounted on the second subframe 180, which can realize power distribution and drive control more flexibly, so that the vehicle 100 can independently adjust the power output of the front and rear wheels according to the road conditions and driving requirements, thereby improving the power and handling of the vehicle 100.

[0080] Please refer to Figures 1 to 10In this embodiment, the first sub-frame 170 includes a first longitudinal beam 171 and a first cross beam 172, the number of the first longitudinal beams 171 is two and they are spaced apart in the left-right direction Y, the first cross beam 172 is connected to the two first longitudinal beams 171, the first cross beam 172 includes a plurality of first sub-cross beams 190 which are separately arranged, and the second sub-frame 180 includes a second longitudinal beam 181 and a second cross beam 182, the number of the second longitudinal beams 181 is two and they are spaced apart in the left-right direction Y, the second cross beam 182 is connected to the two second longitudinal beams 181, and the second cross beam 182 includes a plurality of second sub-cross beams which are separately arranged.

[0081] The first sub-frame 170 includes a first longitudinal beam 171 and a first cross beam 172. The first longitudinal beam 171 is arranged in the left-right direction Y of the first sub-frame 170, that is, two first longitudinal beams 171 are arranged on the left and right sides of the first sub-frame 170, and the two first longitudinal beams 171 are connected by the first cross beam 172, thereby forming the basic structure of the first sub-frame 170. The first cross beam 172 includes a plurality of first sub-cross beams 190 that are separately arranged, that is, the first cross beam 172 is composed of a plurality of first sub-cross beams 190, and the length of the first cross beam 172 is also related to the number and length of the first sub-cross beams 190. In this way, the length of the sub-frame in the left-right direction Y of the vehicle body is related to the length of the plurality of first sub-cross beams 190, and the length of the sub-frame in the left-right direction Y of the vehicle body can be adjusted.

[0082] Specifically, the first crossbeam 172 includes a plurality of split first sub-crossbeams 190, which can realize the adjustable length of the first sub-frame 170 in the left-right direction Y of the vehicle body. On the one hand, by adjusting the length of the first sub-frame 170 in the left-right direction Y of the vehicle body, the first sub-frame 170 can be adapted to a variety of vehicle models, thereby expanding the application scope of the first sub-frame 170, thereby expanding the application scope of the chassis assembly 100A, and reducing the production cost. On the other hand, the adjustable length of the first sub-frame 170 in the left-right direction Y of the vehicle body means that the structural relationship of the suspension system can be adjusted more finely, which can not only reduce the probability of interference of the suspension system, but also optimize the shock absorption effect of the suspension system by adjusting the length of the first crossbeam 172, thereby reducing the interference of road vibration on the vehicle 100 and improving the comfort of the vehicle 100.

[0083] The second sub-frame 180 includes a second longitudinal beam 181 and a second cross beam 182. The second longitudinal beam 181 is arranged in the left-right direction Y of the second sub-frame 180, that is, two second longitudinal beams 181 are arranged on the left and right sides of the second sub-frame 180, and the two second longitudinal beams 181 are connected by the second cross beam 182, thereby forming the basic structure of the second sub-frame 180. The second cross beam 182 includes a plurality of second sub-cross beams arranged separately, that is, the second cross beam 182 is composed of a plurality of second sub-cross beams, and the length of the second cross beam 182 is also related to the number and length of the second sub-cross beams. In this way, the length of the sub-frame in the left-right direction Y of the vehicle body is related to the length of the plurality of second sub-cross beams, and the length of the sub-frame in the left-right direction Y of the vehicle body can be adjusted.

[0084] Specifically, the second crossbeam 182 includes a plurality of second sub-crossbeams which are separately arranged, and can realize the adjustable length of the second sub-frame 180 in the left-right direction Y of the vehicle body. On the one hand, by adjusting the length of the second sub-frame 180 in the left-right direction Y of the vehicle body, the second sub-frame 180 can be adapted to a variety of vehicle models, thereby expanding the application scope of the second sub-frame 180, thereby expanding the application scope of the chassis assembly 100A, and reducing the production cost. On the other hand, the adjustable length of the second sub-frame 180 in the left-right direction Y of the vehicle body means that the structural relationship of the suspension system can be adjusted more finely, which can not only reduce the probability of interference of the suspension system, but also optimize the shock absorption effect of the suspension system by adjusting the length of the second crossbeam 182, thereby reducing the interference of road vibration on the vehicle 100 and improving the comfort of the vehicle 100.

[0085] Please refer to Figures 1 to 10 In this embodiment, the multiple first sub-cross beams 190 include a first connecting beam 191 and two first fixed beams 192, the two first fixed beams 192 are respectively fixedly connected to the two first longitudinal beams 171, and the first connecting beam 191 is connected between the two first fixed beams 192. The multiple second sub-cross beams include a second connecting beam and two second fixed beams, the two second fixed beams are respectively fixedly connected to the two second longitudinal beams 181, and the second connecting beam is connected between the two second fixed beams.

[0086] The multiple first sub-cross beams 190 include a first connecting beam 191 and two first fixed beams 192. The first fixed beams 192 are fixedly connected to the two first longitudinal beams 171 respectively. That is, the two first fixed beams 192 are arranged on both sides of the first sub-frame 170. The two first fixed beams 192 can be connected to the two first longitudinal beams 171 by welding. The two first fixed beams 192 are connected together by the first connecting beam 191. When it is necessary to adjust the length of the first sub-frame 170 in the left-right direction Y, the length of the first connecting beam 191 can be changed to adjust the length of the first sub-frame 170 in the left-right direction Y. A plurality of first connecting beams 191 can be connected to each other to adjust the length of the first sub-frame 170 in the left-right direction Y, so that the first sub-frame 170 can be adapted to a variety of vehicle models, thereby expanding the scope of application of the first sub-frame 170. Moreover, the distributed motor is usually large in size, and the adjustable first sub-frame 170 can make the first sub-frame 170 adaptively adjusted according to the model and size of the distributed motor, thereby making the chassis more compatible with the distributed motor.

[0087] The plurality of second sub-crossbeams include a second connecting beam and two second fixed beams, and the second fixed beams are fixedly connected to the two second longitudinal beams 181, that is, the two second fixed beams are arranged on both sides of the second sub-frame 180, and the two second fixed beams can be connected to the two second longitudinal beams 181 by welding. The two second fixed beams are connected together by the second connecting beam. When the length of the second sub-frame 180 in the left-right direction Y needs to be adjusted, the length of the second connecting beam can be changed, thereby adjusting the length of the second sub-frame 180 in the left-right direction Y. The plurality of second connecting beams can be connected to each other, thereby adjusting the length of the second sub-frame 180 in the left-right direction Y, so that the second sub-frame 180 can be adapted to a variety of vehicle models, expanding the scope of application of the second sub-frame 180. Moreover, the distributed motor is usually large in size, and the adjustable second sub-frame 180 can make the second sub-frame 180 adaptively adjusted according to the model and size of the distributed motor, thereby making the chassis more compatible with the distributed motor.

[0088] Please refer to Figures 1 to 10 In this embodiment, the chassis assembly 100A further includes a plurality of first suspension brackets 230 and a plurality of second suspension brackets 240 , the plurality of first suspension brackets 230 are disposed on the first cross beam 172 , the first motor 140 is mounted on the plurality of first suspension brackets 230 , the plurality of second suspension brackets 240 are disposed on the second cross beam 182 , and the second motor 150 is mounted on the plurality of second suspension brackets 240 .

[0089] The chassis assembly 100A further includes a plurality of first suspension brackets 230 and a plurality of second suspension brackets 240, and the plurality of first suspension brackets 230 are disposed on the first cross beam 172. Exemplarily, there may be a plurality of first cross beams 172, and the plurality of first cross beams 172 are disposed at intervals along the front-rear direction X of the vehicle 100. Two first cross beams 172 may be selected from the plurality of first cross beams 172 to install the plurality of first suspension brackets 230, for example, two first suspension brackets 230 may be respectively installed on the two first cross beams 172, and the first motor 140 is disposed on the first sub-frame 170 through the first suspension brackets 230.

[0090] Similarly, multiple second suspension brackets 240 can be set on the second cross beam 182. For example, there can be multiple second cross beams 182, and the multiple second cross beams 182 are arranged at intervals along the front-rear direction X of the vehicle 100. Two second cross beams 182 can be selected from the multiple second cross beams 182 to install multiple second suspension brackets 240. For example, two second suspension brackets 240 can be installed on the two second cross beams 182 respectively, and the second motor 150 is set on the second subframe 180 through the second suspension brackets 240.

[0091] The first motor 140 is firmly mounted on the first cross beam 172 by means of a plurality of first suspension brackets 230, and the second motor 150 is firmly mounted on the second cross beam 182 by means of a plurality of second suspension brackets 240. The multi-point support method can significantly improve the installation stability of the motor and prevent the motor from loosening or being damaged due to vibration or bumps during the driving of the vehicle 100.

[0092] The first suspension bracket 230 and the second suspension bracket 240 can also play the role of shock absorption and seismic isolation, reducing the impact of road vibration on the first motor 140, the second motor 150 and the vehicle 100 as a whole, enhancing the driving stability of the vehicle 100, and improving riding comfort. Especially in complex road conditions, this design can significantly reduce the bumpy feeling of the vehicle 100 and enhance the driving experience.

[0093] Specifically, multiple first suspension brackets 230 are arranged on the first cross beam 172, the first motor 140 is installed on the multiple first suspension brackets 230, multiple second suspension brackets 240 are arranged on the second cross beam 182, and the second motor 150 is installed on the multiple second suspension brackets 240. On the one hand, the stability of the motor installation can be improved, and on the other hand, the stability of the vehicle 100 can be enhanced and the bumpy feeling of the vehicle 100 can be reduced.

[0094] Please refer to Figures 1 to 10In this embodiment, the chassis assembly 100A further includes a vibration-damping structure 210 . The first sub-frame 170 and the second sub-frame 180 are both provided with the vibration-damping structure 210 . The vibration-damping structure 210 includes a spring 211 and a shock absorber 212 . The spring 211 is sleeved on the shock absorber 212 .

[0095] The chassis assembly 100A also includes a vibration reduction structure 210, which is used to reduce the vibration of the vehicle 100 during driving. The vibration reduction structure 210 is usually connected to the wheels, and the first sub-frame 170 and the second sub-frame 180 are both provided with the vibration reduction structure 210. Since the distributed motor is usually large in size, it is necessary to reduce the space occupied by the components on the chassis assembly 100A as much as possible. Therefore, the spring 211 of the vibration reduction structure 210 and the shock absorber are set together, which can greatly reduce the space occupied by the vibration reduction structure 210 on the chassis assembly 100A, improve the space utilization rate of the chassis assembly 100A, make the chassis have enough space to accommodate the distributed motor, and improve the compatibility of the chassis and the distributed motor.

[0096] Please refer to Figures 1 to 10 The chassis assembly 100A also includes a front suspension system, which includes two double wishbone 250 structures, one end of each double wishbone 250 structure is connected to the corresponding first longitudinal beam 171, and the other end of the double wishbone 250 structure is connected to the corresponding front wheel. The chassis assembly 100A also includes a steering gear 220, which is installed on the two first longitudinal beams 171, and at least a portion of the steering gear 220 is located on the front side of the first drive axle 120.

[0097] The front suspension system includes two double wishbone 250 structures, one end of the two double wishbone 250 structures is connected to the corresponding first longitudinal beam 171, and the other end of the double wishbone 250 structure is connected to the corresponding wheel. The front suspension of the vehicle 100 is set as a double wishbone 250 structure. The upper and lower A-shaped wishbones of the double wishbone 250 suspension can accurately locate various parameters of the front wheels, so that the vehicle 100 has higher stability when turning, reduces roll, and thus improves the controllability of the vehicle 100. This suspension system can bring a more sensitive and precise control experience to the driver, especially under high-speed driving and complex road conditions, and can better reflect its excellent control performance.

[0098] The double wishbone 250 suspension has two upper and lower wishbones, which can absorb lateral forces at the same time, while the pillars only bear the weight of the vehicle body, so that the double wishbone 250 suspension has excellent lateral stiffness and can provide better lateral support, thereby improving the stability of the vehicle 100 during driving.

[0099] The steering gear 220 is mounted on the two first longitudinal beams 171, and at least part of the steering gear 220 is located at the front side of the first drive axle 120. The chassis assembly 100A may further include the steering gear 220. The front suspension of the vehicle 100 adopts a double wishbone 250 front suspension, and the steering gear 220 is used to control the steering of the front wheels of the vehicle 100. By arranging at least part of the first motor 140 at the rear side of the first drive axle 120, the occupied space at the front side of the first drive axle 120 can be reduced, so that the space at the front side of the first drive axle 120 is larger, so that the steering gear 220 can be arranged at the front side of the first drive axle 120. For the vehicle 100 adopting the double wishbone 250 front suspension, arranging the steering gear 220 at the front side of the first drive axle 120 is conducive to improving the steering performance of the vehicle 100.

[0100] Specifically, at least part of the steering gear 220 is located in front of the first drive axle 120, which means that the steering input can act more directly on the front wheels, reducing the delay of power transmission and improving the control response speed of the vehicle 100. In the double wishbone 250 front suspension system, the front placement of the steering gear 220 helps to reduce the interference between the steering gear 220 and the first drive axle 120, thereby improving the overall efficiency of the steering system.

[0101] The embodiment of the present application further provides a vehicle 100 , comprising a chassis assembly 100A of any one of the embodiments of the present application.

[0102] In the vehicle 100 proposed in the embodiment of the present application, the first motor 140 is located at the rear side of the first drive axle 120 and is dynamically connected to the first drive shaft, and the second motor 150 is located at the rear side of the second drive axle 130 and is dynamically connected to the second drive shaft. On the one hand, the first motor 140 and the second motor 150 are respectively arranged on the front and rear sides of the chassis assembly 100A of the vehicle 100, which can provide power to the front and rear wheels of the vehicle 100 respectively, and independently control the rotation speed of the front and rear wheels, thereby reducing power transmission loss, improving transmission efficiency, and improving the handling and driving stability of the vehicle 100. On the other hand, it can also reduce the occupation of the middle space of the vehicle 100, make the internal structure of the vehicle 100 more compact, and make the chassis more compatible with the distributed motors.

[0103] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0104] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0105] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0106] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A chassis assembly for a vehicle, characterized in that: include: Frame; A first drive axle, disposed on the vehicle frame, wherein the first drive axle comprises a first drive shaft; a second drive axle, disposed on the vehicle frame and located at the rear side of the first drive axle, the second drive axle comprising a second drive shaft; a first motor, disposed on the vehicle frame, wherein at least a portion of the first motor is located at a rear side of the first drive axle and is dynamically connected to the first drive axle; The second motor is arranged on the vehicle frame, and at least a part of the second motor is located at the rear side of the second drive axle and is dynamically connected to the second drive shaft.

2. The chassis assembly according to claim 1, characterized in that: The chassis assembly also includes an energy component, which is arranged on the frame to provide energy for the first motor and the second motor. The energy component is located between the first motor and the second drive axle, and the energy component includes a battery pack and / or a fuel tank.

3. The chassis assembly according to claim 1, characterized in that: The first drive shaft includes a first left half shaft and a first right half shaft, and along the left-right direction of the vehicle, the first left half shaft and the first right half shaft are opposite and spaced apart, the first motor includes a first left motor and a first right motor, the first left motor is connected to the first left half shaft by power, and the first right motor is connected to the first right half shaft by power; The second drive shaft includes a second left half shaft and a second right half shaft. Along the left-right direction of the vehicle, the second left half shaft and the second right half shaft are opposite to each other and spaced apart. The second motor includes a second left motor and a second right motor. The second left motor is power-connected to the second left half shaft, and the second right motor is power-connected to the second right half shaft.

4. The chassis assembly according to claim 1, characterized in that: The chassis assembly further includes a first subframe and a second subframe, wherein the first subframe and the second subframe are both mounted on the frame; The first motor is mounted on the first sub-frame, and the second motor is mounted on the second sub-frame.

5. The chassis assembly according to claim 4, characterized in that: The first subframe includes a first longitudinal beam and a first cross beam, the first longitudinal beams are two and spaced apart in the left-right direction, the first cross beam is connected to the two first longitudinal beams, and the first cross beam includes a plurality of first sub-cross beams that are separately arranged; The second subframe includes a second longitudinal beam and a second cross beam, the number of the second longitudinal beams is two and the second cross beams are spaced apart in the left-right direction, the second cross beam is connected to the two second longitudinal beams, and the second cross beam includes a plurality of second sub-cross beams that are separately arranged.

6. The chassis assembly according to claim 5, characterized in that: The plurality of first sub-cross beams include a first connecting beam and two first fixed beams, the two first fixed beams are fixedly connected to the two first longitudinal beams respectively, and the first connecting beam is connected between the two first fixed beams; The plurality of second sub-cross beams include a second connecting beam and two second fixed beams, the two second fixed beams are fixedly connected to the two second longitudinal beams respectively, and the second connecting beam is connected between the two second fixed beams.

7. The chassis assembly according to claim 5, characterized in that: The chassis assembly further includes a plurality of first suspension brackets and a plurality of second suspension brackets, wherein the plurality of first suspension brackets are arranged on the first cross beam, and the first motor is mounted on the plurality of first suspension brackets; The plurality of second suspension brackets are disposed on the second cross beam, and the second motor is mounted on the plurality of second suspension brackets.

8. The chassis assembly according to claim 4, characterized in that: The chassis assembly further includes a vibration reduction structure. The first sub-frame and the second sub-frame are both provided with vibration reduction structures. The vibration reduction structure includes a spring and a shock absorber. The spring is sleeved on the shock absorber.

9. The chassis assembly according to claim 6, characterized in that: The chassis assembly further includes a front suspension system, wherein the front suspension system includes two double wishbone structures, one end of each double wishbone structure is connected to the corresponding first longitudinal beam, and the other end of the double wishbone structure is connected to the corresponding front wheel; The chassis assembly further includes a steering gear, which is mounted on the two first longitudinal beams, and at least a portion of the steering gear is located at the front side of the first drive axle.

10. A vehicle, characterized in that: A chassis assembly comprising any one of claims 1-9.

Images