Truck chassis arrangement structure and vehicle with same

Abstract

The utility model discloses a truck chassis arrangement structure and a vehicle with the truck chassis arrangement structure, and the truck chassis arrangement structure comprises a frame extending along the front-back direction; the axle comprises a front steering axle assembly and a rear drive axle assembly, and the rear drive axle assembly is installed on the rear portion of the frame; the driving motor is positioned at the rear part of the rear driving axle assembly and is in transmission connection with the rear driving axle assembly through a transmission shaft; the battery assembly is installed on the frame and located in front of the rear drive axle assembly, and the battery assembly is electrically connected with the drive motor. According to the chassis arrangement structure of the truck, modularization and serialization of chassis arrangement are achieved, and convenience of axle distance adjustment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle components, in particular to a truck chassis arrangement structure and a vehicle having the same. Background Art

[0002] The truck chassis layout in related technologies usually adopts a front-engine, rear-wheel drive layout, with the battery assembly placed at the position of the front steering axle assembly. During the wheelbase adjustment process, the components of the central system are affected by the wheelbase and need to be adjusted at the same time, which makes the adjustment inconvenient and takes too long. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a truck chassis layout structure that realizes modularization and serialization of chassis layout and improves the convenience of adjusting the wheelbase.

[0004] The utility model also provides a vehicle with a truck chassis arrangement structure.

[0005] To achieve the above-mentioned objectives, according to an embodiment of the present utility model, a chassis layout structure of a truck is proposed, comprising: a frame extending in the front-to-rear direction; an axle, the axle comprising a front steering axle assembly and a rear drive axle assembly, the rear drive axle assembly being mounted at the rear of the frame; a drive motor, the drive motor being located at the rear of the rear drive axle assembly and being transmission-connected to the rear drive axle assembly via a transmission shaft; a battery assembly, the battery assembly being mounted on the frame and located in front of the rear drive axle assembly, the battery assembly being electrically connected to the drive motor.

[0006] According to the chassis layout structure of the truck in the embodiment of the present invention, the entire truck chassis layout structure adopts a modular structure, dividing the frame, axle and battery assembly into independent components, and the axle is divided into a front steering axle assembly and a rear drive axle assembly. The front steering axle assembly is responsible for steering, and the rear drive axle assembly is responsible for driving.

[0007] The rear drive axle assembly and drive motor are located at the rear of the vehicle frame, and the drive motor is connected to the rear drive axle. This layout allows the rear drive section to be adjusted and replaced independently without affecting the front steering axle assembly and the vehicle frame structure, increasing the flexibility of wheelbase adjustment. For example, in a front-engine, rear-wheel drive layout, adjustments require not only the frame and related wiring harnesses but also the drive shaft. However, in a rear-engine, rear-wheel drive layout, adjustments to the drive shaft and other structures are unnecessary, making wheelbase adjustment more convenient.

[0008] Therefore, according to the chassis layout structure of the truck in the embodiment of the present utility model, modularization and serialization of the chassis layout are achieved, and the convenience of adjusting the wheelbase is improved.

[0009] According to some specific embodiments of the present utility model, the battery assembly includes: a power battery, which is installed on the vehicle frame and located in front of the rear drive axle assembly in the front-to-back direction; a low-voltage battery, which is installed on the vehicle frame and located in front of the power battery, and the low-voltage battery is electrically connected to the power battery.

[0010] According to some specific embodiments of the present invention, it also includes: an air cylinder, the low-voltage battery is installed on the outside of the longitudinal beam on one side of the frame, and the air cylinder is installed on the outside of the longitudinal beam on the other side of the frame and corresponds to the position of the low-voltage battery in the front-to-back direction.

[0011] According to some specific embodiments of the present invention, the front steering axle assembly includes: a first steering axle and a second steering axle, the first steering axle is located below the cab, and the second steering axle is located behind the first steering axle; the rear drive axle assembly includes: a first drive axle and a second drive axle, the first drive axle is located in front of the second drive axle, and the first drive axle and the second drive axle are connected to the drive motor through the drive shaft; wherein, the low-voltage battery is located between the first steering axle and the second steering axle in the front-to-rear direction.

[0012] According to some specific embodiments of the present utility model, the power battery includes: a front power battery, which is located below the cab and between the first steering axle and the second steering axle in the front-to-rear direction; and a rear power battery, which is located between the second steering axle and the first drive axle in the front-to-rear direction.

[0013] According to some specific embodiments of the present invention, the rear power battery includes: a left power battery, a middle power battery and a right power battery. The left power battery and the right power battery are respectively installed on both sides of the longitudinal beam of the frame, and the middle power battery is installed in the middle of the longitudinal beam of the frame.

[0014] According to some specific embodiments of the present invention, the highest position of the power battery is no higher than the upper wing surface of the longitudinal beam of the frame.

[0015] According to some specific embodiments of the present invention, the vehicle further comprises: a high-voltage box and a battery management module, wherein the high-voltage box and the battery management module are respectively installed on both sides of the longitudinal beam of the vehicle frame and are located behind the rear drive axle assembly.

[0016] According to some specific embodiments of the present invention, the chassis cooling system and the controller are respectively installed on both sides of the longitudinal beam of the frame and located behind the rear drive axle assembly.

[0017] According to an embodiment of the second aspect of the present invention, a vehicle is provided, comprising the rear-mounted, rear-wheel drive chassis arrangement structure according to the above embodiment of the present invention.

[0018] The vehicle according to the embodiment of the present invention realizes modularization and serialization of chassis arrangement by utilizing the truck chassis arrangement structure according to the embodiment of the present invention, thereby improving the convenience of adjusting the wheelbase.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a structural diagram of the chassis arrangement structure of a truck according to an embodiment of the present utility model;

[0022] Figure 2 It is another structural schematic diagram of the truck chassis layout structure according to an embodiment of the present utility model.

[0023] Reference numerals:

[0024] Truck chassis layout structure 1, frame 100, axle 200, battery assembly 300, drive motor 400,

[0025] Air reservoir 500, high-voltage box 600, battery management module 700, chassis cooling system 800,

[0026] Controller 900, front steering axle assembly 210, rear drive axle assembly 220, first steering axle 211,

[0027] The second steering axle 212, the first driving axle 221, the second driving axle 222,

[0028] Power battery 310, low voltage battery 320, front power battery 311, rear power battery 312,

[0029] Left power battery 301, middle power battery 302, right power battery 303,

[0030] Cab 10. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0034] In the description of the present invention, “multiple” means two or more, and “several” means one or more.

[0035] The following describes a truck chassis arrangement structure 1 according to an embodiment of the present invention with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, the truck chassis arrangement structure 1 according to an embodiment of the present invention includes a vehicle frame 100 , an axle 200 , a battery assembly 300 and a drive motor 400 .

[0037] The vehicle frame 100 extends in the front-to-back direction. The axle 200 includes a front steering axle assembly 210 and a rear drive axle assembly 220, which is mounted at the rear of the vehicle frame 100. The drive motor 400 is located behind the rear drive axle assembly 220 and is in transmission connection with the rear drive axle assembly 220 via a drive shaft. The battery assembly 300 is mounted on the vehicle frame 100 and located in front of the rear drive axle assembly 220, and is electrically connected to the drive motor 400.

[0038] For example, the truck chassis layout structure 1 of the embodiment of the present invention adopts a rear-mounted, rear-wheel drive layout, with the drive motor 400 located at the rear of the rear drive axle assembly 220 and connected to the rear drive axle assembly 220 by transmission, wherein the transmission connection is achieved by connecting the rear drive axle assembly 220 and the drive motor 400 via a first transmission shaft and a second transmission shaft respectively, and devices such as the air pump and steering oil pump are still located below the cab.

[0039] According to the truck chassis arrangement structure 1 of the embodiment of the present invention, the entire truck chassis arrangement structure 1 adopts a modular structure, dividing the frame 100, the axle 200 and the battery assembly 300 into independent components. The axle 200 is divided into a front steering axle assembly 210 and a rear drive axle assembly 220. The front steering axle assembly 210 is responsible for steering, and the rear drive axle assembly 220 is responsible for driving.

[0040] The rear drive axle assembly 220 and drive motor 400 are located at the rear of the vehicle frame 200, with the drive motor 400 in driving connection with the rear drive axle assembly 220. This layout allows the rear-drive portion to be adjusted and replaced independently without affecting the front steering axle assembly 210 and the structure of the vehicle frame 100, thereby increasing the flexibility of wheelbase adjustment. For example, in a front-engine, rear-drive configuration, adjustments require not only the vehicle frame 100 and associated wiring harnesses, but also the drive shaft. However, in a rear-engine, rear-drive configuration, adjustments to the drive shaft and other structures are unnecessary, making wheelbase adjustment more convenient.

[0041] Therefore, according to the truck chassis arrangement structure 1 of the embodiment of the present utility model, modularization and serialization of chassis arrangement are achieved, and convenience of adjusting the wheelbase is improved.

[0042] In some specific embodiments of the present invention, Figure 2 As shown, the battery assembly 300 includes a power battery 310 and a low-voltage battery 320. The power battery 310 is mounted on the vehicle frame 100 and located forward of the rear drive axle assembly 320 in the fore-aft direction. The low-voltage battery 320 is also mounted on the vehicle frame 100 and located forward of the power battery 310. The low-voltage battery 320 is electrically connected to the power battery 310. The power battery 310 is the primary energy storage device for a cargo vehicle, providing power to the drive motor 400 to support long-term vehicle operation. Specifically, the drive motor 400 is mounted on the vehicle frame 100 and located forward of the rear drive axle assembly 220 in the fore-aft direction, directly powering the rear drive axle assembly 220. The power battery 310 converts high-voltage electricity into low-voltage electricity (24V) through a DC-DC converter within the power-driven electronic unit (PEU). This electricity is then supplied to the low-voltage battery 320 (commonly referred to as a storage battery or battery). The low-voltage battery 320 then supplies power to low-voltage components throughout the vehicle, such as lighting and door locks.

[0043] At the same time, the power battery 310 and the low-voltage battery 320 are installed at different positions on the frame 100, which optimizes the space utilization of the chassis. The low-voltage battery 320 is located in front of the power battery 310, which can effectively utilize the remaining space and avoid space waste.

[0044] In some specific embodiments of the present invention, Figure 2 As shown, the truck chassis layout structure 1 also includes an air cylinder 500. The low-voltage battery 320 is installed on the outside of the longitudinal beam on one side of the frame 100, and the air cylinder 500 is installed on the outside of the longitudinal beam on the other side of the frame 100 and corresponds to the low-voltage battery 320 in the front-to-back direction. The air cylinder 500 is used to store compressed air, which is usually compressed to a certain pressure by a compressor or an air pump and then stored in the air cylinder 500. When the driver steps on the brake pedal, the compressed air in the air cylinder 500 is transported through pipelines to various components of the braking system, such as brake valves, brake cylinders, etc. The compressed air pushes the piston in the brake cylinder, and transmits the braking force to the brake drum or brake disc of the wheel through a series of mechanical connections, thereby achieving deceleration or parking of the vehicle.

[0045] Mounting the gas reservoir 500 and low-voltage battery 320 in corresponding positions along the front-to-back direction helps balance the vehicle's weight distribution, reducing the potential imbalance caused by excess weight on one side of the vehicle. Furthermore, by mounting the gas reservoir 500 and low-voltage battery 320 on the outside of the longitudinal beams on both sides of the vehicle frame 100, space can be saved within the vehicle, leaving more room for cargo or other equipment.

[0046] In some specific embodiments of the present invention, Figure 1 and Figure 2 As shown, the front steering axle assembly 210 includes a first steering axle 211 and a second steering axle 212. The first steering axle 211 is located below the cab 10, and the second steering axle 212 is located behind the first steering axle 211. The rear drive axle assembly 220 includes a first drive axle 221 and a second drive axle 222. The first drive axle 221 is located in front of the second drive axle 222, and the first drive axle 221 and the second drive axle 222 are both connected to the drive motor 400. The low-voltage battery 320 is located between the first steering axle 211 and the second steering axle 212 in the front-to-back direction. The first drive shaft is connected between the first drive axle 221 and the second drive axle 222, and the second drive shaft is connected between the second drive axle 222 and the drive motor 400.

[0047] The structure of the first steering axle 211 and the second steering axle 212 ensures excellent vehicle maneuverability and steering flexibility. When the vehicle turns, the coordination of the first and second steering axles 211, 212 enables more precise steering and a more stable driving trajectory. The rear drive axle assembly 220, comprised of the first and second drive axles 221, 222, provides increased driving force for the vehicle.

[0048] By adjusting the distance between the first steering axle 211 and the second steering axle 212, as well as the distance between the first drive axle 221 and the second drive axle 222, the vehicle's wheelbase can be flexibly adjusted to suit varying cargo load requirements and road conditions. Furthermore, the low-voltage battery 320, located between the first steering axle 211 and the second steering axle 212, effectively lowers the vehicle's center of gravity and enhances driving stability.

[0049] In some specific embodiments of the present invention, Figure 2 As shown, the power battery 310 includes a front power battery 311 and a rear power battery 312. The front power battery 311 is located below the cab 10, and the front power battery 311 is located between the first steering axle 211 and the second steering axle 212 in the front-to-back direction. The rear power battery 312 is located between the second steering axle and the first drive axle in the front-to-back direction. The front power battery 311 is located below the cab, which can effectively lower the center of gravity of the entire vehicle. Lowering the center of gravity helps to improve the stability of the vehicle, especially reducing the risk of rollover or instability during driving. The distribution of the front power battery 311 and the rear power battery 312 keeps the vehicle balanced in the front-to-back direction, maintains the dynamic balance of the vehicle under different load conditions, and enhances handling.

[0050] In some specific embodiments of the present invention, Figure 2 As shown, the rear power battery 312 includes a left power battery 301, a middle power battery 302, and a right power battery 303. The left power battery 301 and the right power battery 303 are respectively installed on both sides of the longitudinal beam of the frame 100, and the middle power battery 302 is installed in the middle of the longitudinal beam of the frame 100. By distributing the power batteries 301 on both sides and in the middle of the longitudinal beam of the frame 100, a more even weight distribution can be achieved. This configuration helps to improve the center of gravity of the vehicle, lower the center of gravity height, and improve the stability of the vehicle during driving. At the same time, the balanced battery layout can reduce the roll of the vehicle during acceleration, braking, and steering, providing better handling performance. Especially when turning, the reasonable distribution of the batteries can effectively reduce the risk of vehicle roll and enhance the sensitivity and stability of handling.

[0051] In some specific embodiments of the present invention, Figure 1As shown, the highest position of the power battery 310 is no higher than the upper wing surface of the longitudinal beam of the frame 100. According to the required power demand, multiple groups of power batteries 310 can be stacked up and placed at the lower end of the upper wing surface of the longitudinal beam of the frame 100.

[0052] The power battery 310 is located below the longitudinal beams of the vehicle frame 100, effectively lowering the center of gravity of the entire chassis. Since the power battery 310 is typically a critical component of a truck, positioning it as close to the ground as possible can reduce the vehicle's center of gravity and improve overall vehicle stability and maneuverability. Furthermore, lowering the chassis' center of gravity can enhance the vehicle's handling stability. A chassis with a lower center of gravity can reduce roll and instability during acceleration, braking, and steering, thereby providing a more stable handling and driving experience.

[0053] In some specific embodiments of the present invention, Figure 2 As shown, the truck chassis arrangement structure 1 further includes a high-voltage box 600 and a battery management module 700. The high-voltage box 600 and the battery management module 700 are respectively installed on both sides of the longitudinal beam of the frame 100 and located behind the rear drive axle assembly 220.

[0054] The high-voltage box 600 can precisely control and distribute power, ensuring smooth switching of the power battery 310 between different operating modes. At the same time, by regulating the current, the overall energy efficiency of the vehicle can be improved and the battery capacity can be maximized. The battery management module 700 is one of the core subsystems of the battery energy storage system, responsible for monitoring the operating status of each battery in the battery energy storage unit to ensure the safe and reliable operation of the energy storage unit. The battery management module 700 can monitor and collect the status parameters of the energy storage battery in real time (including but not limited to single cell voltage, battery pole temperature, battery loop current, battery pack terminal voltage, battery system insulation resistance, etc.), and perform necessary analysis and calculations on the relevant status parameters to obtain more system status evaluation parameters. It can also achieve effective management and control of the energy storage battery itself according to specific protection control strategies to ensure the safe and reliable operation of the entire battery energy storage unit.

[0055] In some specific embodiments of the present invention, Figure 2As shown, the truck chassis layout structure 1 also includes a chassis cooling system 800 and a controller 900. The chassis cooling system 800 and the controller 900 are respectively installed on both sides of the longitudinal beam of the frame 100 and are located behind the rear drive axle assembly 220. Among them, the high-voltage box 600 and the controller 900 and other structures are less than 1 meter above the ground, which improves the convenience of vehicle maintenance and servicing. Specifically, the power battery 310 is connected to the controller 900 via a high-voltage line, and the controller 900 then supplies power to the drive motor 400. The drive motor 400 transmits power to the rear drive axle assembly 220 through a transmission shaft. The drive motor 400 and other components will generate high temperatures during operation. To avoid excessive temperatures, the chassis cooling system 800 is required to cool the drive motor 400 and other components.

[0056] The chassis cooling system 800 consists of an electronic fan, water tank, water pump, auxiliary water tank and other systems. The required cooling components are connected in series or in parallel through water pipes, and the water pump is used to pressurize (to achieve the flow rate of the coolant). When the coolant passes through the cooling components and reaches the water tank, the fan cools the coolant to achieve the purpose of cooling.

[0057] A vehicle according to an embodiment of the present invention will be described below.

[0058] The vehicle according to the embodiment of the present utility model includes the truck chassis arrangement structure 1 according to the above embodiment of the present utility model.

[0059] According to the vehicle of the above embodiment of the present invention, by utilizing the truck chassis arrangement structure 1 according to the embodiment of the present invention, modularization and serialization of chassis arrangement are achieved, thereby improving the convenience of adjusting the wheelbase.

[0060] Other structures and operations according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A truck chassis layout structure, characterized in that: include: a vehicle frame extending in a front-to-rear direction; an axle, the axle comprising a front steering axle assembly and a rear drive axle assembly, the rear drive axle assembly being mounted on the rear portion of the vehicle frame; A drive motor, the drive motor being located at the rear of the rear drive axle assembly and being in driving connection with the rear drive axle assembly via a transmission shaft; A battery assembly is mounted on the vehicle frame and located in front of the rear drive axle assembly, and the battery assembly is electrically connected to the drive motor.

2. The truck chassis layout structure according to claim 1, characterized in that: The battery assembly includes: a power battery, the power battery being mounted on the vehicle frame and located in front of the rear drive axle assembly in the front-to-rear direction; A low-voltage battery is mounted on the vehicle frame and located in front of the power battery, and the low-voltage battery is electrically connected to the power battery.

3. The truck chassis layout structure according to claim 2, characterized in that: Also includes: The gas cylinder is installed on the outside of the longitudinal beam on one side of the frame, and the gas cylinder is installed on the outside of the longitudinal beam on the other side of the frame and corresponds to the low-voltage battery in the front-to-back direction.

4. The truck chassis layout structure according to claim 2, characterized in that: The front steering axle assembly includes: a first steering axle and a second steering axle, wherein the first steering axle is located below the cab, and the second steering axle is located behind the first steering axle; The rear drive axle assembly includes: a first drive axle and a second drive axle, the first drive axle is located in front of the second drive axle, and the first drive axle and the second drive axle are both connected to the drive motor via the drive shaft; The low-voltage battery is located between the first steering axle and the second steering axle in the front-to-rear direction.

5. The truck chassis layout structure according to claim 4, characterized in that: The power battery includes: A front power battery, located below the cab and between the first steering axle and the second steering axle in the front-to-rear direction; A rear power battery is located between the second steering axle and the first drive axle in the front-to-rear direction.

6. The truck chassis layout structure according to claim 5, characterized in that: The rear power battery includes: a left power battery, a middle power battery and a right power battery. The left power battery and the right power battery are respectively installed on both sides of the longitudinal beam of the frame, and the middle power battery is installed in the middle of the longitudinal beam of the frame.

7. The truck chassis layout structure according to claim 2, characterized in that: The highest position of the power battery is no higher than the upper wing surface of the longitudinal beam of the frame.

8. The truck chassis layout structure according to claim 1, characterized in that: Also includes: A high-voltage box and a battery management module are respectively installed on both sides of the longitudinal beam of the frame and located behind the rear drive axle assembly.

9. The truck chassis layout structure according to claim 1, characterized in that: Also includes: A chassis cooling system and a controller are respectively installed on both sides of the longitudinal beam of the frame and located behind the rear drive axle assembly.

10. A vehicle, characterized in that: include: The truck chassis arrangement structure according to any one of claims 1 to 9.

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