Chassis structure and vehicle

Abstract

The application provides a chassis structure and a vehicle. The chassis structure comprises a frame, a front section electrical system, a middle section electrical system and a rear section electrical system. The frame comprises a front area, a middle area and a rear area arranged in sequence along the length direction. The front section electrical system is arranged in the front area and comprises a double increaser assembly. The middle section electrical system is arranged in the middle area and comprises a fuel tank and a power battery. The fuel tank is used for providing fuel for the double increaser assembly. In the width direction of the frame, the power batteries are arranged on both sides of the fuel tank. The rear section electrical system is arranged in the rear area and comprises an integrated electric drive axle. By arranging the chassis structure provided by the application in a hybrid commercial vehicle, the problem of how to optimize the chassis of the hybrid commercial vehicle, improve the space utilization of the chassis and improve the power and endurance of the vehicle is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a chassis structure and a vehicle. Background Technology

[0002] Currently, most common hybrid commercial vehicles, such as heavy-duty trucks, are equipped with a single range extender. If the range extender fails, the vehicle is prone to breakdowns or can only operate at low power using the battery, which cannot meet normal usage needs. Moreover, when operating in high-altitude areas, the vehicle may experience power reduction due to lack of oxygen. Additionally, due to space constraints, the overall battery capacity is relatively small, which also leads to insufficient driving range.

[0003] Typically, range extenders and power batteries are located in the chassis. Therefore, optimizing the chassis to improve space utilization and enhance the vehicle's power and range has become a direction for those skilled in the art to explore. Utility Model Content

[0004] In view of this, this application provides a chassis structure and vehicle to solve the problem in the prior art of how to optimize the chassis of a hybrid commercial vehicle, improve the space utilization of the chassis, and thus enhance the vehicle's power and range.

[0005] To achieve the above objectives, this application provides the following technical solution: A chassis structure, comprising: The frame includes a front section, a middle section, and a rear section distributed sequentially along its length. A front-end electrical system, located in the front zone, includes a dual range extender assembly; A mid-section electrical system is located in the central area. The mid-section electrical system includes a fuel tank and a power battery. The fuel tank is used to supply fuel to the dual range extender assembly. The power batteries are distributed on both sides of the fuel tank in the width direction of the vehicle frame. The rear electrical system, located in the rear area, includes an integrated electric drive axle.

[0006] Optionally, the frame includes a first longitudinal beam, a second longitudinal beam, and a plurality of crossbeams, wherein the first longitudinal beam and the second longitudinal beam extend along the length direction of the frame, and each of the crossbeams is connected between the first longitudinal beam and the second longitudinal beam; At least one of the crossbeams is distributed in the central area, and the fuel tank is connected below the crossbeam located in the central area. The power battery is distributed on the side of the first longitudinal beam away from the second longitudinal beam, and the power battery is distributed on the side of the second longitudinal beam away from the first longitudinal beam.

[0007] Optionally, the first and second range extenders of the dual range extender assembly are arranged along the length of the vehicle frame, and the first and second range extenders are arranged in series or in parallel.

[0008] Optionally, the front-end electrical system also includes a cooling module located at the front of the dual range extender assembly along the length of the vehicle frame.

[0009] Optionally, the front-end electrical system further includes an intake module and a steering module, wherein, in the width direction of the vehicle frame, one of the intake module and the steering module is located to the left of the cooling module, and the other is located to the right of the cooling module.

[0010] Optionally, the mid-section electrical system also includes a high-voltage accessory module and a low-voltage battery. Along the length of the vehicle frame, the low-voltage battery is located on the front side of the fuel tank, and the high-voltage accessory module is located on the front side of the fuel tank.

[0011] Optionally, the mid-section electrical system also includes a brake pump and an air reservoir, with the brake pump located above the air reservoir along the length of the vehicle frame, and the brake pump and the air reservoir located behind the fuel tank.

[0012] Optionally, the mid-section electrical system also includes a dryer connected between the brake pump and the air reservoir, located at the front of the power battery along the length of the vehicle frame.

[0013] Optionally, the mid-section electrical system further includes an aftertreatment module for processing the exhaust gas from the dual range extender assembly, the aftertreatment module being located below the high-voltage accessory module.

[0014] A vehicle comprising the chassis structure described in any of the preceding claims.

[0015] The chassis structure provided in this application includes a frame, a front electrical system, a middle electrical system, and a rear electrical system. The frame includes a front section, a middle section, and a rear section distributed sequentially along its length. The front electrical system is located in the front section and includes a dual range extender assembly. The middle electrical system is located in the middle section and includes a fuel tank and a power battery. The fuel tank is used to supply fuel to the dual range extender assembly, and power batteries are distributed on both sides of the fuel tank in the width direction of the frame. The rear electrical system is located in the rear section and includes an integrated electric drive axle. This configuration, when applied to a hybrid commercial vehicle, allows the use of a dual-range extender arrangement. If one extender fails, the other can continue operating to provide power, avoiding reliance solely on the battery. Furthermore, in high-altitude areas, the two extenders can compensate for each other's power, ensuring normal vehicle operation. The dual-range extender design dynamically distributes load according to operating conditions; for example, only one unit needs to operate at low speeds, while both units operate under high loads, avoiding long-term inefficient operation of a single unit and thus improving the overall efficiency of the dual-range extender assembly. Dividing the chassis along its length into front, middle, and rear sections, with the middle section providing a larger assembly space, allows for the centralized placement of the battery and fuel tank, improving chassis space utilization and ensuring vehicle range. The even distribution of the battery on both sides of the fuel tank balances the forces on both sides of the vehicle, contributing to optimized power performance. This solves the problem in existing technologies of how to optimize the chassis of hybrid commercial vehicles, improve chassis space utilization, and enhance vehicle power and range. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a top view of the chassis structure provided in an embodiment of this application.

[0018] Figure 2 An isometric view of the chassis structure provided in an embodiment of this application.

[0019] exist Figures 1-2 middle: 1. Chassis; 2. Dual range extender assembly; 3. Fuel tank; 4. Power battery; 5. Integrated electric drive axle; 6. Cooling module; 7. Intake module; 8. Steering module; 9. High-voltage accessory module; 10. Low-voltage battery; 11. Brake pump; 12. Air reservoir; 13. Dryer; 14. Aftertreatment module; 15. Rear suspension; 101. Front area; 102. Middle area; 103. Back area; 110. First longitudinal beam; 120. Second longitudinal beam; 130. Cross beam; 210, First range extender; 220, Second range extender. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] like Figures 1-2 As shown, this application embodiment provides a chassis structure suitable for hybrid commercial vehicles. The chassis structure includes a frame 1, a front electrical system, a middle electrical system, and a rear electrical system. The frame 1 includes a front section 101, a middle section 102, and a rear section 103 distributed sequentially along its length. The front electrical system is located in the front section 101 and includes a dual range extender assembly 2, which has two range extenders. The middle electrical system is located in the middle section 102 and includes a fuel tank 3 and a power battery 4. The fuel tank 3 is used to supply fuel to the dual range extender assembly 2, and the power batteries 4 are distributed on both sides of the fuel tank 3 in the width direction of the frame 1. The rear electrical system is located in the rear section 103 and includes an integrated electric drive axle 5.

[0022] This configuration, when applied to a hybrid commercial vehicle, allows the chassis structure provided in this application to be used in a dual-range extender configuration. Because of this dual-range extender arrangement, if one extender fails, the other can continue to operate and provide power, avoiding reliance solely on the power battery 4. Furthermore, in high-altitude areas, the two extenders can compensate for each other's power, ensuring normal vehicle operation. The dual-range extender design can dynamically distribute the load according to operating conditions; for example, only one unit needs to operate at low speeds, while both units operate under high loads, avoiding long-term inefficient operation of a single unit and thus improving the overall efficiency of the dual-range extender assembly 2. The frame 1 is divided into a front zone 101, a middle zone 102, and a rear zone 103 along its length. The middle zone 102 provides a relatively larger assembly space. The power battery 4 and the fuel tank 3 are centrally arranged in this zone, which improves the space utilization of the chassis and ensures the vehicle's range. Moreover, the power battery 4 is evenly distributed on both sides of the fuel tank 3, which balances the forces on both sides of the vehicle and also helps to optimize the vehicle's power performance. This solves the problem in the prior art of how to optimize the chassis of a hybrid commercial vehicle and improve the space utilization of the chassis to enhance the vehicle's power and range.

[0023] Furthermore, in the chassis structure provided by this application, due to the complementary operation of the dual range extenders or the operation of the single range extender, it is possible to avoid relying solely on the power battery 4 for power, thereby reducing the high-current charging and discharging of the power battery 4, protecting the power battery 4, extending the life of the power battery 4, and reducing the cost of use.

[0024] It should be noted that the integrated electric drive axle 5 highly integrates core components such as the drive motor, reducer, and differential into the axle structure, forming a lightweight, compact, and highly efficient powertrain unit. The integrated electric drive axle 5 is electrically connected to the power battery 4. The dual range extender assembly 2 is also electrically connected to the power battery 4, meaning that the power battery 4 can store the electricity generated from the dual range extender assembly 2.

[0025] For example, depending on the fuel, the fuel tank 3 can be a methanol tank, a methanol gasoline tank, etc., to adapt to diverse energy replenishment scenarios and reduce the range anxiety caused by relying solely on the power battery 4.

[0026] The frame 1 serves as the structural skeleton of the chassis. The frame 1 includes a first longitudinal beam 110, a second longitudinal beam 120, and multiple crossbeams 130. The first and second longitudinal beams 110 and 120 extend along the length of the frame 1, that is, from the front to the rear of the vehicle. Each crossbeam 130 connects to the first and second longitudinal beams 110 and 120, and the crossbeams 130 are approximately perpendicular to the first and second longitudinal beams 110 and 120. The multiple crossbeams 130 are arranged at intervals along the direction from the front to the rear of the vehicle. The first longitudinal beam 110 can be the left longitudinal beam, and the second longitudinal beam 120 can be the right longitudinal beam.

[0027] In some alternative embodiments, the fuel tank 3 is located in the region between the first longitudinal beam 110 and the second longitudinal beam 120, and at least one crossbeam 130 is distributed in the central region 102. The fuel tank 3 is connected below the crossbeam 130 located in the central region 102. The power battery 4 is distributed on the side of the first longitudinal beam 110 away from the second longitudinal beam 120, and the power battery 4 is also distributed on the side of the second longitudinal beam 120 away from the first longitudinal beam 110. That is, a set of power batteries 4 is arranged on the left side of the left longitudinal beam and a set of power batteries 4 is arranged on the right side of the right longitudinal beam.

[0028] With this configuration, the area on the frame 1 with the crossbeams 130 is a reinforced part of the chassis structure. Placing the fuel tank 3 in the reinforced part of the central area 102 of the frame 1 is beneficial to the installation stability of the fuel tank 3. At the same time, the two sets of power batteries 4 are actually symmetrically distributed on the left and right sides of the crossbeams 130, which is also beneficial to the reinforced installation of the power batteries 4. Moreover, in the central area 102 of the frame 1, the space on both sides of the two longitudinal beams is fully arranged for the power batteries 4, which increases the overall power capacity of the vehicle and improves the driving range.

[0029] For example, the central area 102 has two adjacent crossbeams 130, and the fuel tank 3 is connected below the two crossbeams 130.

[0030] In some optional embodiments, crossbeams 130 are distributed at both ends of the first longitudinal beam 110 and the second longitudinal beam 120, crossbeams 130 are distributed at the separation point between the middle zone 102 and the front zone 101, crossbeams 130 are distributed at the separation point between the middle zone 102 and the rear zone 103, and crossbeams 130 are distributed in the rear zone 103.

[0031] In some other specific embodiments, the front-end electrical system also includes a cooling module 6, which is located at the front of the dual-range extender assembly 2 along the length of the vehicle frame 1. The cooling module 6 is used to cool the power battery 4 and the dual-range extender assembly 2. The cooling module 6 is the integrated heat dissipation hub of the thermal management system of new energy vehicles. It pre-assembles components such as radiator, electric fan, cooling water pump, expansion tank, condenser, pipelines and sensors into a single assembly, which can be installed on the vehicle as a whole through conventional connection methods, such as fastening connections and quick-connect fittings.

[0032] With this configuration, the cooling module 6 is also arranged on the chassis in this embodiment, and is located in the front area 101 of the frame 1. In this way, the cooling module 6 can be arranged on the windward side of the vehicle, which helps to ensure that the cooling module 6 can effectively perform its cooling function.

[0033] In some other specific embodiments, the front-end electrical system also includes an intake module 7 and a steering module 8. In the width direction of the frame 1, one of the intake module 7 and the steering module 8 is located to the left of the cooling module 6, and the other is located to the right of the cooling module 6. The intake module 7 provides air intake to the dual-range extender assembly 2. The intake module 7 filters, adjusts the temperature and pressure of the outside air, and precisely delivers it to the dual-range extender assembly 2. As exemplarily shown in the figure, the intake module 7 is arranged to the right of the cooling module 6, and the steering module 8 is arranged to the left of the cooling module 6.

[0034] With this configuration, in this embodiment, the air intake module 7 and the steering module 8 are also arranged on the chassis and located in the front area 101 of the frame 1. In this way, the electrical system in the front area 101 of the frame 1 has a high degree of integration and a compact structure, which is conducive to the high space utilization of the chassis.

[0035] In some other specific embodiments, the mid-section electrical system also includes a high-voltage accessory module 9 and a low-voltage battery 10. Along the length of the frame 1, the low-voltage battery 10 is located in front of the fuel tank 3, and the high-voltage accessory module 9 is also located in front of the fuel tank 3. Multiple controllers, such as the drive motor controller (MCU, Motor Control Unit) and the high-voltage power distribution unit (PDU, Power Distribution Unit), are integrated into the high-voltage auxiliary drive to form the high-voltage accessory module 9. The high-voltage accessory module 9 is communicatively connected to other electrical structures.

[0036] With this configuration, the high-voltage accessory module 9 and the low-voltage battery 10 are also arranged on the chassis in this embodiment, and are located in the middle area 102 of the frame 1. In this way, the area between the two longitudinal beams in the middle area 102 is efficiently utilized, which is conducive to the high integration and compact structure of the electrical system in the middle area 102 of the frame 1, and is conducive to the high space utilization of the chassis.

[0037] In some other specific embodiments, the mid-section electrical system also includes a brake air pump 11 and an air reservoir 12, with the brake air pump 11 located above the air reservoir 12. Along the length of the frame 1, the brake air pump 11 and the air reservoir 12 are located behind the fuel tank 3.

[0038] With this configuration, the brake air pump 11 and air tank 12 are also arranged on the chassis in this embodiment, and are located in the middle area 102 of the frame 1. In this way, the area between the two longitudinal beams in the middle area 102 is efficiently utilized, which is conducive to the high integration and compact structure of the electrical system in the middle area 102 of the frame 1, and is conducive to the high space utilization of the chassis.

[0039] Furthermore, in some other specific embodiments, the mid-section electrical system also includes a dryer 13, which is connected between the brake air pump 11 and the air reservoir 12. Along the length of the vehicle frame 1, the dryer 13 is located on the front side of the power battery 4. The dryer 13 cools, filters, and dries the high-temperature, water-containing, and oil-containing compressed air output by the brake air pump 11 before sending it to the air reservoir 12 for storage, preventing the brake lines from freezing and the valve body from corroding, thus ensuring driving safety.

[0040] With this configuration, the dryer 13 is also arranged on the chassis in this embodiment, and is located in the middle zone 102 of the frame 1. This makes efficient use of the space outside the longitudinal beam in the middle zone 102, which is conducive to the high integration and compact structure of the electrical system in the middle zone 102 of the frame 1, and also conducive to the high space utilization of the chassis.

[0041] In some other specific embodiments, the mid-section electrical system also includes an aftertreatment module 14 for processing the exhaust gas from the dual range extender assembly 2, and the aftertreatment module 14 is located below the high-voltage accessory module 9.

[0042] With this configuration, the after-processing module 14 is also arranged on the chassis in this embodiment, and is located in the middle area 102 of the frame 1. This makes efficient use of the longitudinal space in the middle area 102, which is conducive to the high integration and compact structure of the electrical system in the middle area 102 of the frame 1, and also conducive to the high space utilization of the chassis.

[0043] In summary, the reasonable layout of the electrical structures in the front area 101 and middle area 102 of the frame 1 ensures that the weight distribution on both sides of the frame 1 is basically the same; moreover, the area between the two longitudinal beams is used to centrally arrange electrical structures with a volume smaller than that of the power battery 4, and the space on the outer side of the two longitudinal beams is basically reserved for the arrangement of the power battery 4, so that the chassis can be equipped with a large-capacity power battery 4.

[0044] In some other specific embodiments, the rear electrical system also includes a rear suspension 15, the thrust rod structure of which is connected to the frame 1. The rear suspension 15 is located above the integrated electric drive axle 5.

[0045] In some other alternative embodiments, the first range extender 210 and the second range extender 220 of the dual range extender assembly 2 are arranged one after the other along the length of the frame 1, and the first range extender 210 and the second range extender 220 are arranged in series or in parallel.

[0046] With this configuration, the first range extender 210 and the second range extender 220 are arranged in parallel, which can output maximum power simultaneously in high-load scenarios such as vehicle climbing and overtaking, avoiding single-unit overload and insufficient power. The first range extender 210 and the second range extender 220 are arranged in series, which can save layout space, improve cooling efficiency, and achieve stepped power output.

[0047] Based on the aforementioned chassis structure, this application also provides a vehicle that includes the aforementioned chassis structure. Since the vehicle possesses the aforementioned chassis structure, the beneficial effects brought by the chassis structure are explained above and will not be repeated here. The vehicle may be, but is not limited to, a hybrid commercial vehicle.

[0048] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0049] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0050] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0051] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0052] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0053] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A chassis structure, characterized in that, include: The frame (1) includes a front section (101), a middle section (102) and a rear section (103) distributed sequentially along the length direction. A front-end electrical system is provided in the front area (101), the front-end electrical system including a dual range extender assembly (2); A mid-section electrical system is provided in the mid-section (102). The mid-section electrical system includes a fuel tank (3) and a power battery (4). The fuel tank (3) is used to supply fuel to the dual range extender assembly (2). The power battery (4) is distributed on both sides of the fuel tank (3) in the width direction of the frame (1). The rear electrical system is located in the rear area (103) and includes an integrated electric drive axle (5).

2. The chassis structure according to claim 1, characterized in that, The frame (1) includes a first longitudinal beam (110), a second longitudinal beam (120) and a plurality of crossbeams (130). The first longitudinal beam (110) and the second longitudinal beam (120) extend along the length of the frame (1), and each of the crossbeams (130) is connected between the first longitudinal beam (110) and the second longitudinal beam (120). At least one of the crossbeams (130) is distributed in the central area (102), and the fuel tank (3) is connected below the crossbeam (130) located in the central area (102). The power battery (4) is distributed on the side of the first longitudinal beam (110) away from the second longitudinal beam (120), and the power battery (4) is distributed on the side of the second longitudinal beam (120) away from the first longitudinal beam (110).

3. The chassis structure according to claim 1, characterized in that, The first range extender (210) and the second range extender (220) of the dual range extender assembly (2) are arranged along the length of the vehicle frame (1), and the first range extender (210) and the second range extender (220) are arranged in series or in parallel.

4. The chassis structure according to claim 1, characterized in that, The front electrical system also includes a cooling module (6), which is located on the front side of the dual range extender assembly (2) along the length of the frame (1).

5. The chassis structure according to claim 4, characterized in that, The front electrical system also includes an intake module (7) and a steering module (8). In the width direction of the frame (1), one of the intake module (7) and the steering module (8) is located to the left of the cooling module (6), and the other is located to the right of the cooling module (6).

6. The chassis structure according to claim 1, characterized in that, The mid-section electrical system also includes a high-voltage accessory module (9) and a low-voltage battery (10). Along the length of the frame (1), the low-voltage battery (10) is located on the front side of the fuel tank (3), and the high-voltage accessory module (9) is located on the front side of the fuel tank (3).

7. The chassis structure according to claim 1 or 6, characterized in that, The mid-section electrical system also includes a brake air pump (11) and an air reservoir (12). The brake air pump (11) is located above the air reservoir (12) along the length of the frame (1). The brake air pump (11) and the air reservoir (12) are located on the rear side of the fuel tank (3).

8. The chassis structure according to claim 7, characterized in that, The mid-section electrical system also includes a dryer (13), which is connected between the brake air pump (11) and the air reservoir (12) along the length of the frame (1) and is located in front of the power battery (4).

9. The chassis structure according to claim 6, characterized in that, The mid-section electrical system also includes an after-treatment module (14) for processing the exhaust gas from the dual range extender assembly (2), and the after-treatment module (14) is located below the high-voltage accessory module (9).

10. A vehicle, characterized in that, Includes the chassis structure as described in any one of claims 1-9.

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