Vehicle
By placing the drivetrain on one side of the generator set in hybrid vehicles and optimizing its layout, the problem of excessive space occupied by the powertrain has been solved, achieving better space compatibility and stability, and improving the reliability of the drive motor and the vehicle's NVH performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-05-01
AI Technical Summary
The powertrain of existing hybrid vehicles uses a transverse layout, which results in excessive space occupation in the width direction of the vehicle and makes it incompatible with devices such as double wishbone independent suspension.
The drive assembly is placed on one side of the generator assembly, and the surface of the drive assembly away from the ground is lower than that of the generator assembly. A layout perpendicular to the second direction is adopted to decouple the engine and drive assembly, rationally arrange the generator unit and drive assembly, and optimize the vehicle's internal structure by utilizing the installation space in the vehicle's height direction.
It reduces the space ratio of the powertrain in the vehicle width direction, improves the space compatibility in the engine compartment, enhances kinematic performance, extends the service life of the drive motor, and improves NVH performance and overall vehicle stability.
Smart Images

Figure CN224184098U_ABST
Abstract
Description
vehicle Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle. Background Technology
[0002] In the existing technology, the powertrain of a hybrid electric vehicle includes a power generation unit and a drive unit. The existing powertrain usually adopts a transverse arrangement, that is, the power generation unit and the drive unit are arranged along the width of the vehicle. The transverse arrangement of the powertrain occupies too much space in the width direction of the vehicle, which makes it impossible to accommodate devices such as double wishbone independent suspension in the engine compartment. Summary of the Invention
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a vehicle that reduces the space ratio of the power generation assembly and drive assembly in the width direction of the vehicle, making their layout within the engine compartment more rational, thereby reserving more installation space and improving the space compatibility of the engine compartment.
[0004] A vehicle according to an embodiment of the present invention includes: a power generation assembly; a drive assembly, the drive assembly being disposed on one side of the power generation assembly in a first direction, and the surface of the drive assembly on the side away from the ground in a second direction being lower than the surface of the power generation assembly on the side away from the ground; wherein, the first direction is perpendicular to the second direction.
[0005] According to the vehicle of the present invention, by placing the drive assembly on one side of the power generation assembly in the first direction, and with the surface of the drive assembly away from the ground being lower than the surface of the power generation assembly away from the ground, compared with the power assembly with a transverse arrangement in the prior art, the space ratio of the power generation assembly and the drive assembly in the width direction of the vehicle is reduced, making their layout in the engine compartment more reasonable. This allows for more installation space to be reserved for the installation of other components (such as double wishbone independent suspension with better kinematic performance and longer travel), thus improving the space compatibility of the engine compartment.
[0006] According to some embodiments of the present invention, the power generation assembly includes: a generator device; an engine connected to the generator device and arranged side by side along a third direction, wherein the engine is opposite to the drive assembly in the first direction; wherein the first direction, the second direction and the third direction are orthogonal to each other.
[0007] According to some embodiments of the present invention, the minimum distance between the engine and the drive assembly in the first direction is L1, wherein L1 satisfies: L1≥35mm; and / or the minimum distance between the engine and the drive assembly in the second direction is L2, wherein L2 satisfies: L2≥35mm.
[0008] According to some embodiments of the present invention, the generator device includes a generator and a first controller, the first controller being connected to the generator, and the first controller being located on the side of the generator away from the ground in the second direction.
[0009] According to some embodiments of the present invention, the starting component is decoupled from the drive assembly, and the drive assembly includes: a first drive motor and a second drive motor, the second drive motor and the first drive motor being arranged along the third direction; a reducer, the reducer being disposed between the first drive motor and the second drive motor in the third direction; and a second controller, the second controller being connected to the first drive motor and the second drive motor respectively, the drive motor controller being disposed on the side of the first drive motor and the second drive motor away from the ground in the second direction.
[0010] According to some embodiments of the present invention, the vehicle further includes: a floor guard plate, wherein the floor guard plate is disposed on the side of the drive assembly adjacent to the ground in the second direction; wherein the minimum distance between the floor guard plate and the drive assembly in the second direction is L3, wherein L3 satisfies: L3≥20mm.
[0011] According to some embodiments of the present invention, the vehicle further includes: a body; a frame, wherein the frame is disposed on one side of the drive assembly adjacent to the ground in the second direction, the frame including a plurality of longitudinal beams and a plurality of transverse beams, the plurality of longitudinal beams being spaced apart along the third direction, each of the longitudinal beams extending along the first direction, the plurality of transverse beams being spaced apart along the first direction, each of the transverse beams extending along the third direction; the power generation assembly being connected to the longitudinal beams, and the drive assembly being connected to the transverse beams.
[0012] According to some embodiments of the present invention, the vehicle body includes a front bulkhead, which is located on the side of the drive assembly away from the power generation assembly in the first direction; the vehicle also includes a battery thermal management system, which includes a first pump body, a heat exchange device, and a first water tank, wherein the first pump body is connected to the crossbeam, the heat exchange device is connected to the front bulkhead, and the first water tank is located at the water channel of the vehicle body; wherein, in the first direction, the heat exchange device is located between the first pump body and the front bulkhead, and in the first direction, the first water tank is located on the side of the first pump body away from the heat exchange device, and the heat exchange device and the first water tank are arranged along the third direction.
[0013] According to some embodiments of the present invention, the vehicle further includes: a heater water pump, wherein the heater water pump and the first pump body are disposed on the same crossbeam; a heating element, wherein in the first direction the heating element is disposed between the first pump body and the front bulkhead, and in the third direction the heating element is located between the heat exchange device and the first water tank.
[0014] According to some embodiments of the present invention, the vehicle further includes a cooling system, the cooling system including a plurality of valve bodies, a refrigerant integration module and a liquid reservoir, the plurality of valve bodies being disposed on the side of the front bulkhead adjacent to the drive assembly, the refrigerant integration module and the liquid reservoir being disposed on the side of the engine away from the generator unit in the third direction, and the refrigerant integration module being located between the liquid reservoir and the front bulkhead in the first direction.
[0015] According to some embodiments of the present invention, the vehicle further includes: an integrated water tank, the integrated water tank being connected to the cooling system, the integrated water tank and the refrigerant integrated module being located on the same side of the engine in the third direction, and in the first direction, the integrated water tank being located on the side of the refrigerant integrated module away from the liquid storage tank.
[0016] According to some embodiments of the present invention, the cooling system further includes a compressor, which is located on the side of the engine away from the drive assembly in the first direction, and in the third direction the compressor is located between the liquid reservoir and the generator unit.
[0017] According to some embodiments of the present invention, the vehicle further includes: a high-temperature water pump, which is located on the side of the engine away from the drive assembly in the first direction and on the side of the compressor away from the engine in the second direction; and a low-temperature water pump, which is located on the same side of the engine in the first direction and arranged along the third direction.
[0018] According to some embodiments of the present invention, the engine includes: a body; an exhaust device communicating with the body, wherein the exhaust device is disposed on the side of the body adjacent to the drive assembly in the first direction; and a catalytic converter disposed on the exhaust device.
[0019] According to some embodiments of the present invention, the engine further includes: an intake manifold, the intake manifold being connected to the engine body; and an intercooler, the intercooler being connected to the intake manifold, wherein the intercooler is disposed on the side of the engine body away from the drive assembly in the first direction.
[0020] According to some embodiments of the present invention, the vehicle further includes: a steering assembly disposed on the side of the body adjacent to the ground in the second direction, and in the first direction the steering assembly is disposed on the side of the drive assembly adjacent to the power generation assembly.
[0021] According to some embodiments of the present invention, the vehicle further includes: an air filter, wherein the air filter is disposed on the side of the generator unit away from the engine in the third direction, and the air filter is located between the generator unit and the drive assembly in the first direction.
[0022] According to some embodiments of the present invention, the vehicle further includes: an on-board controller, wherein the on-board controller and the generator are respectively disposed on both sides of the engine in the third direction.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 is an overall view of the power generation assembly and drive assembly according to an embodiment of the present utility model;
[0026] Figure 2 is a schematic diagram of the vehicle front compartment according to an embodiment of the present utility model;
[0027] Figure 3 is a top view of the front compartment of a vehicle according to an embodiment of the present utility model;
[0028] Figure 4 is another schematic diagram of the vehicle front compartment according to an embodiment of the present utility model;
[0029] Figure 5 is a schematic diagram of the drive assembly according to an embodiment of the present utility model;
[0030] Figure 6 is another schematic diagram of the drive assembly according to an embodiment of the present utility model;
[0031] Figure 7 is a schematic diagram of a power generation assembly according to an embodiment of the present invention;
[0032] Figure 8 is another schematic diagram of a power generation assembly according to an embodiment of the present utility model;
[0033] Figure 9 is a schematic diagram of the vehicle frame according to an embodiment of the present utility model;
[0034] Figure 10 is a schematic diagram of the refrigerant integration module according to an embodiment of the present utility model;
[0035] Figure 11 is a schematic diagram of a steering gear assembly according to an embodiment of the present utility model;
[0036] Figure 12 is a schematic diagram of a hydraulic suspension according to an embodiment of the present invention.
[0037] Explanation of reference numerals in the attached figures:
[0038] 1000, vehicles;
[0039] 10. Power generation assembly; 11. Generator unit; 111. Generator; 112. First controller; 12. Engine; 121. Engine block; 122. Exhaust system; 123. Intercooler; 20. Drive assembly; 21. First drive motor; 22. Second drive motor; 23. Reducer; 24. Second controller; 30. Body; 31. Front bulkhead; 32. Right front wheel arch; 33. Right pillar of water tank; 34. Water channel; 40. Frame; 41. Longitudinal beam; 42. Crossbeam; 421. First crossbeam; 422. 423. Second crossbeam; 50. Third crossbeam; 51. Battery thermal management system; 52. Heat exchange device; 53. First water tank; 64. Heating element; 75. Vehicle controller; 86. Cooling system; 87. Valve body; 88. Three-way valve; 89. Four-way valve; 80. Refrigerant integrated module; 81. Liquid storage tank; 82. Integrated water tank; 93. Compressor; 100. High-temperature water pump; 110. Low-temperature water pump; 120. Steering assembly; 130. Air filter; 140. Hydraulic suspension; 150. Suspension device. Detailed Implementation
[0040] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The vehicle 1000 according to an embodiment of the present invention is described below with reference to Figures 1-12.
[0041] As shown in Figures 1-4, the vehicle 1000 according to an embodiment of the present invention includes a power generation assembly 10 and a drive assembly 20. Specifically, the drive assembly 20 is disposed on one side of the power generation assembly 10 in a first direction, and in a second direction, the surface of the drive assembly 20 away from the ground is lower than the surface of the power generation assembly 10 away from the ground; wherein, the first direction is perpendicular to the second direction.
[0042] For example, in the example shown in the figure, the first direction is the driving direction of the vehicle 1000 (e.g., the left-right direction in Figure 1), and the power generation assembly 10 and the drive assembly 20 are arranged along the driving direction of the vehicle 1000, with the power generation assembly 10 positioned near the front of the vehicle. The second direction is the height direction of the vehicle 1000 (e.g., the up-down direction in Figure 1), and the surface of the drive assembly 20 away from the ground is lower than the surface of the power generation assembly 10 away from the ground, that is, the drive assembly 20 is positioned below and behind the power generation assembly 10.
[0043] According to the embodiment of the present invention, the vehicle 1000, by placing the drive assembly 20 on one side of the power generation assembly 10 in the first direction, and with the surface of the drive assembly 20 away from the ground being lower than the surface of the power generation assembly 10 away from the ground, reduces the space ratio of the power generation assembly 10 and the drive assembly 20 in the width direction of the vehicle 1000 compared with the transverse arrangement of the power assembly in the prior art, making its layout in the engine compartment more reasonable. This allows for more installation space to be reserved for the installation of other components (such as double wishbone independent suspension with better kinematic performance and longer travel), thus improving the space compatibility of the engine compartment.
[0044] According to some embodiments of the present invention, the power generation assembly 10 includes a generator device 11 and an engine 12. The engine 12 is connected to the generator device 11 and arranged side by side along a third direction, which is the width direction of the vehicle 1000 (e.g., the left-right direction in FIG. 2). In the first direction, the engine 12 is opposite to the drive assembly 20, and the engine is decoupled from the drive assembly. The first direction, the second direction, and the third direction are orthogonal to each other.
[0045] This configuration allows for a more compact arrangement of the generator assembly 11, engine 12, and drive assembly 20 within the engine compartment. It avoids excessively large dimensions for the generator assembly 10 and drive assembly 20 in any single direction within the engine compartment, leaving more space for other components and improving the space compatibility of the engine compartment. Furthermore, the decoupling of the engine components from the drive assembly prevents vibrations from the engine 12 from being directly transmitted to the drive motor, reducing adverse effects on the drive motor, improving its stability and reliability, and extending its service life. Simultaneously, it enhances the NVH (noise, vibration, and harshness) performance of the entire powertrain system, reducing the noise and vibration of the vehicle 1000.
[0046] It should be noted that the power generation assembly 10 does not participate in the drive. The engine 12 is responsible for converting the chemical energy provided by fossil fuel into mechanical energy and outputting it to the generator unit 11. The generator unit 11 is responsible for converting the mechanical energy provided by the engine 12 into electrical energy, which is directly supplied to the drive assembly 20 or to the power battery pack for energy storage. In addition, to ensure that the pedestrian protection space between the engine 12 and the hood is ≥80mm, the pitch angle of the engine 12 is set to 8° (backward tilt), that is, the crankshaft axis of the engine 12 is tilted backward by 8° relative to the horizontal plane. The yaw angle and roll angle of the engine 12 are both set to 0°. The yaw angle is the angle between the projection of the crankshaft axis of the engine 12 on the horizontal plane and the longitudinal centerline of the vehicle 1000, and the roll angle is the angle between the crankshaft axis of the engine 12 and the transverse vertical plane of the vehicle 1000.
[0047] According to some embodiments of the present invention, the minimum distance between the engine 12 and the drive assembly 20 in the first direction is L1, wherein L1 satisfies: L1≥35mm; and / or the minimum distance between the engine 12 and the drive assembly 20 in the second direction is L2, wherein L2 satisfies: L2≥35mm.
[0048] For example, in the example of Figure 1, the minimum distance between the engine 12 and the drive assembly 20 in the first direction is L1, where L1 satisfies: L1 ≥ 35 mm, and the minimum distance between the engine 12 and the drive assembly 20 in the second direction is L2, where L2 satisfies: L2 ≥ 35 mm (not shown in the figure). Of course, it is possible to make only the minimum distance between the engine 12 and the drive assembly 20 in the first direction L1, where L1 satisfies: L1 ≥ 35 mm. Alternatively, it is also possible to make only the minimum distance between the engine 12 and the drive assembly 20 in the second direction L2, where L2 satisfies: L2 ≥ 35 mm (not shown in the figure).
[0049] When L1 < 35mm or L2 < 35mm, the engine 12 generates a large amount of heat during operation. If the minimum distance between the engine 12 and the drive assembly 20 is too small, the drive assembly 20 will be in a high-temperature environment for a long time, leading to performance degradation, insulation aging, or even failure. Therefore, by setting the minimum distance L1 between the engine 12 and the drive assembly 20 in the first direction to be within the range of L1 ≥ 35mm, and / or setting the minimum distance L2 between the engine 12 and the drive assembly 20 in the second direction to be within the range of L2 ≥ 35mm, the heat transfer caused by the close proximity of the engine 12 and the drive assembly 20 is reduced, the safety hazards caused by overheating are reduced, and the safety and operational stability of the vehicle 1000 are improved.
[0050] In some embodiments, the generator assembly 11 includes a generator 111 and a first controller 112. The first controller 112 is connected to the generator 111 and is located on the side of the generator 111 away from the ground in a second direction. The first controller 112 is fixed above the generator 111 by bolts and is connected to the engine 12 by a bracket.
[0051] By placing the first controller 112 on the side of the generator 111 away from the ground, the installation space of the engine compartment in the height direction of the vehicle 1000 can be fully utilized, making the layout of the generator unit 11 in the engine compartment more reasonable. Furthermore, since the first controller 112 is located above the generator 111, it is easier for staff to identify the positional relationship between the first controller 112 and the generator 111 when maintaining and repairing the vehicle 1000, thereby facilitating the installation and maintenance of the first controller 112 and reducing maintenance time and costs.
[0052] According to some embodiments of the present invention, the drive assembly 20 includes: a first drive motor 21, a second drive motor 22, a reducer 23, and a second controller 24.
[0053] Specifically, the second drive motor 22 and the first drive motor 21 are arranged along a third direction. A third-direction reducer 23 is located between the first drive motor 21 and the second drive motor 22. A second controller 24 is connected to the first drive motor 21 and the second drive motor 22 respectively, and the second-direction drive motor controller is located on the side of the first drive motor 21 and the second drive motor 22 that is away from the ground.
[0054] By arranging the second drive motor 22 and the first drive motor 21 along a third direction, and placing the reducer 23 between the first drive motor 21 and the second drive motor 22, the structure of the drive assembly 20 is made more compact. This shortens the power transmission path between the first drive motor 21, the second drive motor 22, and the reducer 23, reducing energy loss during power transmission and improving power transmission efficiency. Furthermore, placing the reducer 23 between the first drive motor 21 and the second drive motor 22 facilitates balancing the load of the two drive motors, resulting in smoother power output from the drive assembly 20. In addition, by placing the second controller 24 on the side of the first drive motor 21 and the second drive motor 22 away from the ground, the installation space in the engine compartment in the height direction of the vehicle 1000 can be fully utilized, making the layout of the drive assembly 20 within the engine compartment more rational. Since the second controller 24 is located above the first drive motor 21 and the second drive motor 22, during vehicle 1000 maintenance and repair, it is easier for personnel to identify the positional relationship between the second controller 24 and the two drive motors, thus facilitating the installation and maintenance of the second controller 24 and reducing repair time and costs.
[0055] It should be noted that the drive assembly 20 adopts a T-shaped architecture, that is, the first drive motor 21, the second drive motor 22, and the reducer 23 are arranged in a T-shape (as shown in Figure 5). The first drive motor 21 and the second drive motor 22 can independently control a single wheel, realizing the driving, braking, forward and reverse movement of a single wheel. At the same time, the first drive motor 21 and the second drive motor 22 can be equipped with differential locks, thereby enabling the vehicle 1000 to achieve functions such as agile steering and U-turns on the spot.
[0056] In addition, the second controller 24 is fixed above the first drive motor 21 and the second drive motor 22 by four Z-direction bolts and two Y-direction bolts. At the same time, in order to avoid the influence of heat radiation, the outer periphery of the second controller 24 is provided with a heat insulation layer with a thickness of ≥20mm, and a heat insulation plate can be installed outside the exhaust device 122 or exhaust manifold of the engine 12.
[0057] In some embodiments, the vehicle 1000 further includes: a floor guard plate (not shown), which is disposed on the side of the drive assembly 20 adjacent to the ground in a second direction; wherein the minimum distance between the floor guard plate and the drive assembly 20 in the second direction is L3, wherein L3 satisfies: L3≥20mm.
[0058] During the driving of the vehicle 1000, the underbody protection plate can provide physical protection for the drive assembly 20, effectively preventing sand, mud, debris and other objects on the road from splashing and damaging the drive assembly 20, and reducing the risk of damage to the drive assembly 20 due to impact from external objects, thus improving the service life of the drive assembly 20.
[0059] Furthermore, when L3 < 20mm, if an external object impacts and damages the bottom guard plate, and the minimum distance between the bottom guard plate and the drive assembly 20 in the second direction is too small, it may cause collision damage to the drive assembly 20. Additionally, the drive motor generates heat during operation; if the distance between the bottom guard plate and the drive assembly 20 is too small, the heat may be difficult to dissipate and accumulate around the drive motor, causing its operating temperature to become too high. Therefore, by setting the minimum distance L3 between the bottom guard plate and the drive assembly 20 in the second direction to a range of L3 ≥ 20mm, the risk of damage to the drive assembly 20 due to external object impacts is further reduced, the service life of the drive assembly 20 is improved, and the heat dissipation effect of the drive assembly 20 is guaranteed.
[0060] According to some embodiments of the present invention, the vehicle 1000 further includes a body 30 and a frame 40. The frame 40 is disposed on the side of the drive assembly 20 adjacent to the ground in a second direction. The frame 40 includes a plurality of longitudinal beams 41 and a plurality of crossbeams 42. The longitudinal beams 41 are spaced apart along a third direction, and each longitudinal beam 41 extends along a first direction. The crossbeams 42 are spaced apart along the first direction, and each crossbeam 42 extends along a third direction. The power generation assembly 10 is connected to the longitudinal beams 41, and the drive assembly 20 is connected to the crossbeams 42. In the description of the present invention, "a plurality of" means two or more.
[0061] For example, in the example of Figure 9, there are two longitudinal beams 41 and five transverse beams 42. The transverse beams 42 include a first transverse beam 421, a second transverse beam 422, and a third transverse beam 423. In a first direction, the second transverse beam 422 is located between the first transverse beam 421 and the third transverse beam 423. The drive assembly 20 is connected to the second transverse beam 422 and the third transverse beam 423.
[0062] The frame 40 provides support for the body 30, enhancing its rigidity. During vehicle 1000 operation, the body 30 better resists external forces from different directions, thereby improving the overall stability and safety of the vehicle 1000. Furthermore, when the vehicle 1000 is subjected to external forces, the longitudinal beams 41 and crossbeams 42 of the frame 40 evenly distribute these forces across the entire frame 40 structure, preventing localized stress concentration and thus improving the vehicle 1000's load-bearing capacity and durability. In addition, by connecting the power generation assembly 10 to the longitudinal beams 41 and the drive assembly 20 to the crossbeams 42, the noise and vibration generated by the power generation assembly 10 and drive assembly 20 during operation can be transmitted to the frame 40, reducing interior noise levels and improving ride comfort.
[0063] According to some embodiments of the present invention, the vehicle body 30 includes a front bulkhead 31, which is located on the side of the drive assembly 20 away from the power generation assembly 10 in a first direction. The vehicle 1000 also includes a battery thermal management system 50, which includes a first pump body (not shown), a heat exchange device 51, and a first water tank 52. The first pump body is connected to a crossbeam 42, the heat exchange device 51 is connected to the front bulkhead 31, and the first water tank 52 is located at the water channel 34 of the vehicle body 30. Specifically, in the first direction, the heat exchange device 51 is located between the first pump body and the front bulkhead 31, and in the first direction, the first water tank 52 is located on the side of the first pump body away from the heat exchange device 51. The heat exchange device 51 and the first water tank 52 are arranged along a third direction.
[0064] Specifically, the first pump body is a battery thermal management water pump, the heat exchange device 51 is a battery cooling plate, and the first water tank 52 is a battery thermal management water tank. The first pump body is fixed on the third crossbeam 423, the heat exchange device 51 is fixed to the front of the front bulkhead 31 by a bracket, and the first water tank 52 is connected to two water channels 34 provided on the vehicle body 30.
[0065] Connecting the first pump body to the crossbeam 42 fully utilizes the space on the crossbeam 42 of the frame 40; connecting the heat exchange device 51 to the front bulkhead 31 fully utilizes the space on the front bulkhead 31; placing the first water tank 52 at the water channel 34 of the vehicle body 30 does not affect the appearance of the vehicle 1000 and makes full use of the idle space at the water channel 34, thus improving space utilization. In addition, the heat exchange device 51 is located between the first pump body and the front bulkhead 31, and the first water tank 52 is located on the side of the first pump body away from the heat exchange device 51, and the heat exchange device 51 and the first water tank 52 are arranged along a third direction. This layout makes the connection path between the various components relatively short, reduces the length and bends of the pipes, and improves the structural compactness and working efficiency of the battery thermal management system 50. Furthermore, during the vehicle's operation, when external air flows through the front bulkhead 31, it can carry away the heat from the heat exchange device 51, thereby improving the heat exchange efficiency of the heat exchange device 51. Also, the first water tank 52 is located at the water flow channel 34, where the temperature is usually relatively low, which helps to cool the coolant in the first water tank 52, thereby providing the thermal management system with coolant at a lower temperature and further improving the heat exchange effect.
[0066] In some optional embodiments, as shown in FIG2, the vehicle 1000 further includes: a heater water pump (not shown) and a heating element 60. The heater water pump and the first pump body are mounted on the same crossbeam 42 (i.e., the third crossbeam 423). In a first direction, the heating element 60 is located between the first pump body and the front bulkhead 31; in a third direction, the heating element 60 is located between the heat exchange device 51 and the first water tank 52.
[0067] This arrangement makes full use of the space between existing components without occupying the main installation space in the cabin, thus improving space utilization. Furthermore, by placing the warm air pump and the first pump body on the same crossbeam 42, and placing the heating element 60 between the heat exchange device 51 and the first water tank 52, these components are centrally arranged in relatively fixed positions. This makes it easier for staff to locate and repair these components during maintenance and repair, reducing the time and difficulty in finding faulty parts. The relative independence of each component also allows staff to disassemble and replace individual components during maintenance without affecting the normal operation of other components.
[0068] It should be noted that the heating element 60 can be a water PTC (Positive Temperature Coefficient, i.e., a water-heated PTC heater), and this application does not impose specific restrictions on it.
[0069] According to some optional embodiments of the present invention, as shown in FIG3, the vehicle 1000 further includes: an on-board controller 70, the on-board controller 70 and the generator device 11 are respectively disposed on the two sides of the engine 12 in the third direction, which effectively utilizes the installation space in the engine compartment and makes the internal layout of the vehicle 1000 more compact.
[0070] Specifically, the vehicle controller 70 is an ECU (Electronic Control Unit). The vehicle controller 70 is independently arranged and controls the engine 12 to convert the chemical energy of fuel into mechanical energy and output it to the generator 111. The vehicle controller 70 is fixed above one of the crossbeams 42 by two adapter brackets and fixed to the refrigerant integration module 82 bracket by another adapter bracket. The arrangement angle is 0.3° to ensure its waterproof performance. At the same time, the vehicle controller 70 controls the water level sensor to identify whether the vehicle 1000 is in a floating state. When the water level reaches a certain height, the vehicle controller 70 strategically shuts down the engine 12 to protect the engine 12 from damage.
[0071] According to some embodiments of the present invention, the vehicle 1000 further includes a cooling system 80, which includes a plurality of valve bodies 81, a refrigerant integration module 82, and a liquid reservoir 83. The plurality of valve bodies 81 are all located on the side of the front bulkhead 31 adjacent to the drive assembly 20. The refrigerant integration module 82 and the liquid reservoir 83 are both located on the side of the engine 12 away from the generator unit 11 in the third direction. In the first direction, the refrigerant integration module 82 is located between the liquid reservoir 83 and the front bulkhead 31.
[0072] For example, in the example in Figure 2, there are two valve bodies 81, namely a three-way valve 811 and a four-way valve 812. The three-way valve 811 and the four-way valve 812 are fixed to the front of the front bulkhead 31 by brackets. The refrigerant side integrated module is fixed to the right front wheel arch 32 by brackets. The liquid storage tank 83 is fixed to the rear of the right pillar 33 of the water tank by an adapter bracket (as shown in Figure 10). A rubber bushing is installed between the adapter bracket and the vehicle body 30 to improve the NVH performance of the whole vehicle.
[0073] Since there is usually some installation space around the front bulkhead 31, concentrating the heat exchanger 51, heating element 60, three-way valve 811, and four-way valve 812 in front of the front bulkhead 31 effectively reduces the length of the piping, saving costs and reducing piping weight. It also avoids occupying more space due to the valve body 81 being scattered in other locations within the engine compartment. Simultaneously, placing the refrigerant integration module 82 and the liquid receiver 83 on the side of the engine 12 facing away from the generator 11 in the third-order direction effectively utilizes the space around the engine 12, making the internal layout of the vehicle 1000 more compact. Moreover, this layout has a certain degree of versatility; the specific positions of the valve body 81, refrigerant integration module 82, and liquid receiver 83 can be adjusted according to the size and space limitations of different vehicle models, or different types of brackets can be selected for fixing. This allows the cooling system 80 to adapt to the design requirements of different vehicle models, improving the applicability of the cooling system 80.
[0074] It should be noted that the refrigerant integration module 82 is fixed to the right front wheel arch 32 by two brackets. The refrigerant integration module 82 is fixed to one bracket by two Z-direction (height direction of vehicle 1000) bolts, and to the other bracket by one X-direction (driving direction of vehicle 1000) bolt and three Y-direction (width direction of vehicle 1000) bolts. The two brackets are fixed together by two Z-direction bolts. The integrated structure of the two brackets is fixed to the wheel arch sheet metal by two Y-direction bolts, and to the bracket of the vehicle controller 70 by one Z-direction bolt. The refrigerant piping is arranged on the right side of the engine compartment and at the front bulkhead 31, greatly reducing the risk of heat damage and improving the efficiency of the cooling system 80.
[0075] In some optional embodiments, as shown in Figures 2 and 3, the vehicle 1000 further includes an integrated water tank 84, which is connected to the cooling system 80. Both the integrated water tank 84 and the refrigerant integration module 82 are located on the same side of the engine 12 in a third direction, and in the first direction, the integrated water tank 84 is located on the side of the refrigerant integration module 82 away from the reservoir 83. In a specific implementation, the integrated water tank 84 is specifically arranged above the shock absorber tower on the right side of the engine compartment.
[0076] The integrated water tank 84 and the refrigerant integrated module 82 are located on the same side of the engine 12 in the third-order direction. The refrigerant integrated module 82 is located between the integrated water tank 84 and the coolant reservoir 83, which makes the spatial arrangement of related components more concentrated, shortens the flow path of coolant between the integrated water tank 84 and the refrigerant integrated module 82, reduces the length and bends of the pipes, thereby reducing the resistance of coolant during circulation and improving the efficiency of the cooling system 80. In addition, the integrated water tank 84 can stabilize the pressure of the cooling system 80. During the operation of the cooling system 80, the pressure inside the cooling system 80 will change due to temperature changes and coolant circulation. The integrated water tank 84 can absorb and release the volume changes of coolant through its internal expansion chamber and other structures, thereby stabilizing the pressure of the cooling system 80 and ensuring the normal operation of the cooling system 80.
[0077] Specifically, the integrated water tank 84 is fixed to the right front wheel arch 32 and the water channel 34 of the vehicle body 30 by three bolts, ensuring that the lowest water level of the auxiliary water tank is 15~25mm higher than the highest point of the circuit, so as to ensure that the cooling water circuit can circulate effectively.
[0078] In addition, when the power battery abandons the liquid cooling and liquid heating and adopts the direct cooling film heating scheme, the first pump body, water PTC and other components can be eliminated. It is possible to add high and low temperature waste heat exchange plate and integrate it with the refrigerant integration module 82 and the integrated water tank 84 into a whole assembly component, so as to carry out a more streamlined engine compartment layout.
[0079] According to some embodiments of the present invention, as shown in Figures 2 and 8, the cooling system 80 further includes a compressor 90. In a first direction, the compressor 90 is located on the side of the engine 12 away from the drive assembly 20. In a third direction, the compressor 90 is located between the liquid reservoir 83 and the generator unit 11. In a specific implementation, the air conditioner and the refrigerator share the compressor 90. The compressor 90 is arranged on the engine 12 via a three-point adapter bracket. This arrangement makes full use of the space in the engine compartment in the driving direction and width direction of the vehicle 1000, making the interior space layout of the vehicle 1000 more compact.
[0080] Specifically, the vehicle 1000 also includes a high-temperature water pump 100 and a low-temperature water pump 110. Specifically, in a first direction, the high-temperature water pump 100 is located on the side of the engine 12 away from the drive assembly 20, and in a second direction, the high-temperature water pump 100 is located on the side of the compressor 90 away from the engine 12. Both the high-temperature water pump 100 and the low-temperature water pump 110 are located on the same side of the engine 12 in the first direction, and are arranged along a third direction.
[0081] In the first direction, the high-temperature water pump 100 is located on the side of the engine 12 furthest from the drive assembly 20, avoiding positional conflicts between the high-temperature water pump 100 and the drive assembly 20, and making full use of the space around the engine 12. In the second direction, the high-temperature water pump 100 is located on the side of the compressor 90 furthest from the engine 12, further optimizing the spatial layout, making the installation between various components more compact, and reducing the overall space occupancy of the vehicle 1000. Moreover, both the high-temperature water pump 100 and the low-temperature water pump 110 are located on the same side of the engine 12 in the first direction and arranged along the third direction, allowing personnel to inspect and maintain the high-temperature water pump 100 and the low-temperature water pump 110 in the same area, improving maintenance efficiency.
[0082] It should be noted that the rated power of the high-temperature water pump 100 is 400W, and the rated power of the low-temperature water pump 110 is 300W. The high-temperature water pump 100 is fixed to the lower right side of the engine 12 by a bracket, and the low-temperature water pump 110 is fixed to the generator unit 11 by a bracket. Moreover, the high-temperature water pump 100, the low-temperature water pump 110, and the related valve body 81 can be integrated into the development, simplifying the layout, reducing piping, and lowering the overall vehicle material cost.
[0083] According to some embodiments of the present invention, the engine 12 includes: a body 121, an exhaust device 122, and a catalytic converter (not shown). Specifically, the exhaust device 122 is connected to the body 121, and in a first direction, the exhaust device 122 is located on one side of the body 121 adjacent to the drive assembly 20, and the catalytic converter is located on the exhaust device 122. In a specific implementation, the exhaust device 122 is arranged behind the engine 12, and the exhaust outlet of the exhaust device 122 faces the side of the vehicle 1000. The catalytic converter is fixed to the engine 12 by a bracket, and to prevent heat damage, the gap between the exhaust device 122 and surrounding components is ≥50mm.
[0084] The exhaust system 122 is positioned behind the engine 12. The exhaust gases, after combustion, are expelled rearward under pressure, reducing exhaust resistance and allowing for faster and smoother exhaust flow from the engine 12. Orienting the exhaust outlet of the exhaust system 122 towards the side of the vehicle 1000 reduces the heat radiation impact of the exhaust system 122 on other components of the vehicle 1000. The catalytic converter is located on and connected to the exhaust system 122, providing excellent conditions for exhaust gas purification. Exhaust gases enter the catalytic converter directly from the exhaust system 122, making catalytic oxidation more efficient.
[0085] In some optional embodiments, the engine 12 further includes an intake manifold (not shown) and an intercooler 123. The intake manifold is connected to the engine block 121. The intercooler 123 is connected to the intake manifold and is located on the side of the engine block 121 away from the drive assembly 20 in a first direction. In a specific implementation, the intercooler 123 is fixed to the front end of the engine 12. The intercooler 123 is directly connected to the intake manifold by two bolts and fixed to an adapter bracket by another two bolts. The adapter bracket is then fixed to the engine block 121 of the engine 12 by fixing bolts.
[0086] The intake manifold is connected to the engine block 121, and the intercooler 123 is connected to the intake manifold. This arrangement makes the layout of the intake system more reasonable. The intercooler 123 is located on the side of the engine block 121 away from the drive assembly 20. The intercooler 123 can directly obtain cooling air from the front of the vehicle 1000, which improves the cooling efficiency of the intercooler 123 and makes full use of the installation space in the engine compartment.
[0087] According to some embodiments of the present invention, the vehicle 1000 further includes: a steering assembly 120, which is disposed on the side of the body 121 adjacent to the ground in a second direction, and in a first direction the steering assembly 120 is disposed on the side of the drive assembly 20 adjacent to the power generation assembly 10.
[0088] It should be noted that the steering assembly 120 is specifically located in front of the axle wheel center of the vehicle 1000. The steering assembly 120 includes an electric power steering system with tie rod assembly and a steering motor. The electric power steering system with tie rod assembly is fixed to the second crossbeam 422 of the frame 40 by four X-bolts (as shown in Figure 11), while maintaining a 20mm movement clearance with the drive assembly 20. The steering motor is located below the oil pan of the engine 12 (not shown in the figure).
[0089] In some alternative embodiments, as shown in FIG3, the vehicle 1000 further includes an air filter 130, which is disposed on the side of the generator assembly 11 away from the engine 12 in a third direction, and in a first direction the air filter 130 is located between the generator assembly 11 and the drive assembly 20, effectively utilizing the installation space in the engine compartment and making the interior layout of the vehicle 1000 more compact.
[0090] In practical implementation, along the height of vehicle 1000, the air filter 130 is fixed to the wheel arch sheet metal of vehicle body 30 with three bolts. The air outlet pipe (pre-pressure pipe) of air filter 130 features an independent resonant cavity design and adopts a three-point fixing scheme. Two mounting points are fixed to the housing of the first controller 112, and one mounting point is fixed to the left rear suspension bracket of generator 111 with ball head bolts to improve NVH (noise, vibration, and harshness) performance. The air inlet of air filter 130 is located above the wading line of vehicle 1000, and the circumferential installation environment of air filter 130 requires low temperature and splash protection. The air intake guide pipe of air filter 130 needs to be positioned at least 600mm above the half-loaded ground. Additionally, to ensure the floating function of vehicle 1000, an intake active valve is installed at the air intake guide pipe. In addition, the air filter 130 can be highly integrated with the cabin cover (not shown) to make the cabin layout more streamlined.
[0091] In addition, in some embodiments, the vehicle 1000 also includes a brake fluid reservoir (not shown), which is fixed to two adapter brackets by a bolt, and the adapter brackets are fixed to the water channel 34 of the vehicle body 30 by X-direction bolts.
[0092] It should be noted that, to ensure the vehicle's wading capability, all components in the engine compartment have waterproof rating requirements, specifically as follows: the frame 40, air filter 130, intake active valve, exhaust system 122, front compartment electrical distribution box (not shown in the figure), and front hood latch assembly (not shown in the figure) meet the IP67 waterproof rating requirement. The engine 12 meets the IP67M waterproof rating requirement, which can protect against short-term liquid immersion (waterproofing), and has a maximum immersion resistance of 30 minutes in water at a depth of 1 meter. The generator 111, drive assembly 20, drive shaft, electric power steering with tie rod assembly, suspension damping control module, compressor 90, three-way valve 811, electric water pump assembly, battery thermal management water pump, battery thermal management auxiliary water tank, refrigerant side integrated module, water-heated PTC heater, front compartment wiring harness, front bumper small wire, engine 12 wiring harness, ECU, front combination lights, washer fluid reservoir motor and front compartment high voltage wiring harness and other components meet the IP68 waterproof rating requirements, that is, the components will not take in water at a depth of 1 meter for 24 hours, the entire vehicle must not have any water ingress on any floating products, and the products must not fail or degrade in performance after floating in water.
[0093] Furthermore, this application applies to any hybrid three-electric drive or four-electric drive scheme for a hybrid non-unibody vehicle, and can also be extended to unibody SUV models (including HEV models and REV models' engine compartment layout schemes), and this application does not limit this.
[0094] In some alternative embodiments, the vehicle 1000 also includes a suspension system, specifically a hydraulic suspension 140 (as shown in Figure 12). Because the hydraulic suspension 140 has higher rigidity and more stable suspension performance, it can provide better control of the vehicle 1000 during high-speed driving and emergency situations, making the vehicle 1000 drive more smoothly and safely.
[0095] According to some embodiments of this utility model, the vehicle 1000 also includes multiple suspension devices 150. As shown in FIG7, the power generation assembly 10 is fixed to the left and right longitudinal beams 41 and left and right shock absorber towers of the frame 40 via four suspension devices 150, wherein the engine 12 and the generator 111 are each provided with two suspension devices 150. As shown in FIG8, the drive assembly 20 is fixed to the second crossbeam 422 and the third crossbeam 423 of the frame 40 via four suspension devices. As shown in FIG9, the frame 40 and the body 30 are connected by five suspension devices 150, which are spaced apart along a first direction. The suspension devices 150 use rubber bushings or hydraulic bushings to improve comfort.
[0096] Other configurations and operations of the vehicle 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.
[0097] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0098] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A vehicle, characterized in that, include: A power generation assembly; a drive assembly, the drive assembly being disposed on one side of the power generation assembly in a first direction, and in a second direction, the surface of the drive assembly on the side away from the ground being lower than the surface of the power generation assembly on the side away from the ground; wherein the first direction is perpendicular to the second direction.
2. The vehicle according to claim 1, characterized in that, The power generation assembly includes: a generator unit; an engine connected to the generator unit and arranged side by side along a third direction, wherein the engine is opposite to the drive assembly in the first direction; wherein the first direction, the second direction, and the third direction are orthogonal to each other.
3. The vehicle according to claim 2, characterized in that, The minimum distance between the engine and the drive assembly in the first direction is L1, wherein L1 satisfies: L1≥35mm; and / or the minimum distance between the engine and the drive assembly in the second direction is L2, wherein L2 satisfies: L2≥35mm.
4. The vehicle according to claim 2, characterized in that, The generator assembly includes a generator and a first controller, the first controller being connected to the generator and located on the side of the generator away from the ground in the second direction.
5. The vehicle according to claim 2, characterized in that, The engine is decoupled from the drive assembly, which includes: a first drive motor and a second drive motor, the second drive motor and the first drive motor being arranged along the third direction; a reducer, the reducer being disposed between the first drive motor and the second drive motor in the third direction; and a second controller, the second controller being connected to the first drive motor and the second drive motor respectively, the drive motor controller being disposed on the side of the first drive motor and the second drive motor away from the ground in the second direction.
6. The vehicle according to claim 1, characterized in that, Also includes: A bottom guard plate is provided on the side of the drive assembly adjacent to the ground in the second direction; wherein the minimum distance between the bottom guard plate and the drive assembly in the second direction is L3, wherein L3 satisfies: L3≥20mm.
7. The vehicle according to claim 2, characterized in that, Also includes: The vehicle body; the frame, which is disposed on the side of the drive assembly adjacent to the ground in the second direction, the frame including a plurality of longitudinal beams and a plurality of crossbeams, the plurality of longitudinal beams being spaced apart along the third direction, each of the longitudinal beams extending along the first direction, the plurality of crossbeams being spaced apart along the first direction, each of the crossbeams extending along the third direction; the power generation assembly being connected to the longitudinal beams, and the drive assembly being connected to the crossbeams.
8. The vehicle according to claim 7, characterized in that, The vehicle body includes a front bulkhead, which is located on the side of the drive assembly away from the power generation assembly in the first direction. The vehicle also includes a battery thermal management system, which includes a first pump body, a heat exchange device, and a first water tank. The first pump body is connected to the crossbeam, the heat exchange device is connected to the front bulkhead, and the first water tank is located at the water channel of the vehicle body. In the first direction, the heat exchange device is located between the first pump body and the front bulkhead, and the first water tank is located on the side of the first pump body away from the heat exchange device in the first direction. The heat exchange device and the first water tank are arranged along the third direction.
9. The vehicle according to claim 8, characterized in that, The vehicle also includes: a heater water pump, which is mounted on the same crossbeam as the first pump body; and a heating element, which is located between the first pump body and the front bulkhead in the first direction, and between the heat exchange device and the first water tank in the third direction.
10. The vehicle according to claim 9, characterized in that, The vehicle further includes a cooling system comprising a plurality of valve bodies, a refrigerant integration module, and a reservoir. The plurality of valve bodies are located on the side of the front bulkhead adjacent to the drive assembly. The refrigerant integration module and the reservoir are located on the side of the engine in the third direction away from the generator unit, and in the first direction, the refrigerant integration module is located between the reservoir and the front bulkhead.
11. The vehicle according to claim 10, characterized in that, Also includes: An integrated water tank is connected to the cooling system. The integrated water tank and the refrigerant integration module are both located on the same side of the engine in the third direction, and in the first direction, the integrated water tank is located on the side of the refrigerant integration module away from the liquid storage tank.
12. The vehicle according to claim 10, characterized in that, The cooling system also includes a compressor, which is located on the side of the engine away from the drive assembly in the first direction, and in the third direction the compressor is located between the reservoir and the generator unit.
13. The vehicle according to claim 12, characterized in that, Also includes: A high-temperature water pump is located on the side of the engine away from the drive assembly in the first direction, and on the side of the compressor away from the engine in the second direction; a low-temperature water pump is located on the same side of the engine in the first direction, and the high-temperature water pump and the low-temperature water pump are arranged along the third direction.
14. The vehicle according to any one of claims 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, and 13, characterized in that, The engine includes: a body; an exhaust device communicating with the body and disposed on the side of the body adjacent to the drive assembly in the first direction; and a catalytic converter disposed on the exhaust device.
15. The vehicle according to claim 14, characterized in that, The engine further includes: an intake manifold connected to the engine block; and an intercooler connected to the intake manifold, wherein the intercooler is located on the side of the engine block away from the drive assembly in the first direction.
16. The vehicle according to claim 14, characterized in that, Also includes: A steering assembly is disposed on the side of the body adjacent to the ground in the second direction, and in the first direction the steering assembly is disposed on the side of the drive assembly adjacent to the power generation assembly.
17. The vehicle according to claim 2, characterized in that, Also includes: An air filter is disposed on the side of the generator assembly away from the engine in the third direction, and in the first direction the air filter is located between the generator assembly and the drive assembly.
18. The vehicle according to claim 2, characterized in that, Also includes: The vehicle controller and the generator are respectively located on both sides of the engine in the third direction.