Chassis assembly of methanol extended-range power engineering vehicle and engineering vehicle

Abstract

The utility model discloses a methanol extended-range power engineering vehicle chassis assembly, which relates to the technical field of automobiles, and particularly comprises a frame-shaped frame structure consisting of two groups of longitudinal beams and a plurality of groups of cross beams, an engine assembly, a generator assembly, a driving motor assembly and a gearbox assembly are sequentially arranged in the frame structure from front to back, the engine assembly is in power connection with the generator assembly, the generator assembly is electrically connected with the driving motor assembly, and the driving motor assembly is in power connection with the gearbox assembly; according to the methanol range extending power engineering vehicle chassis assembly and the engineering vehicle, the middle position and the two side positions of the frame-shaped vehicle frame are fully utilized, the space arrangement problem of a range extender, a power battery, a high-voltage accessory and a heat management module is solved, meanwhile, the installation positions of different modules are arranged, and the installation efficiency is improved. And the convenience of fuel filling and the driving safety of the whole vehicle are further improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile technology, and more specifically, to a chassis assembly of a methanol range-extended power engineering vehicle. In addition, the utility model also relates to a chassis assembly comprising the above-mentioned methanol range-extended power engineering vehicle. Background Art

[0002] Heavy-duty trucks are used in a variety of scenarios in actual production and often need to travel through cities. Due to the complex road conditions in cities, the driving process requires constant braking, deceleration, and acceleration. Traditional engineering vehicles are driven by diesel engines, which have high fuel consumption and high pollution emissions during the starting phase. This causes the disadvantages of slow power response and high fuel consumption in diesel vehicles. At the same time, engineering transport vehicles frequently brake on urban roads, and the kinetic energy during braking is converted into heat energy dissipation. They also run at idle for a long time while waiting for unloading at the construction site, resulting in serious energy loss.

[0003] The methanol range-extending technology route can meet the requirements of pure electric starting, motor braking when the vehicle is braking, engine shutdown when the vehicle is waiting for a long time, and the engine always maintains the high-efficiency zone during heavy-load frequent starting. The energy consumption is more than 30% less than the fuel direct drive mode, which can solve the above problems very well.

[0004] Due to the limitations of the chassis wheelbase, superstructure, and vehicle length, the space for arranging the range extender, power battery, high-voltage accessories, thermal management module, etc. on the vehicle is very limited, which has inhibited the development of methanol range-extended transport vehicles.

[0005] In summary, how to solve the problem of the existing methanol range-extended power engineering vehicles, which is limited by the chassis wheelbase, superstructure and vehicle length on the spatial layout of modules such as the range extender, power battery, high-voltage accessories, and thermal management, is an urgent problem that needs to be solved by technical personnel in this field. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a methanol range-extended power engineering vehicle chassis assembly, which solves the spatial arrangement problem of the range extender, power battery, high-voltage accessories and thermal management module by making full use of the middle position and both sides of the frame-type frame. At the same time, by setting the installation positions of different modules, the convenience of fuel filling and the safety of vehicle driving are further improved.

[0007] Another object of the present utility model is to provide an engineering vehicle comprising the above-mentioned methanol range-extended power engineering vehicle chassis assembly, which has the same technical features and can solve the same technical problems.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A methanol range-extended power engineering vehicle chassis assembly includes a frame structure consisting of two sets of longitudinal beams and several sets of cross beams;

[0010] The engine assembly, the generator assembly, the drive motor assembly and the gearbox assembly are arranged in sequence from front to back inside the frame structure, the engine assembly is power-connected to the generator assembly, the generator assembly is electrically connected to the drive motor assembly, and the drive motor assembly is power-connected to the gearbox assembly;

[0011] Engine accessories, a fuel storage tank, and a power battery assembly are respectively provided on both sides of the exterior of the frame structure, and the power battery assembly is electrically connected to the drive motor assembly and the generator assembly respectively;

[0012] A heat dissipation assembly is provided above the frame structure, between the cab and the superstructure of the engineering vehicle, for controlling the temperature of the drive motor assembly and the power battery assembly.

[0013] Preferably, the engine assembly and the generator assembly are arranged on the front side of the first bridge, the drive motor assembly and the gearbox assembly are arranged between the second bridge and the drive axle, and the gearbox assembly is power-connected to the drive axle.

[0014] Preferably, the fuel storage tank includes a methanol tank assembly and a gasoline tank assembly, and the methanol tank assembly and the gasoline tank assembly are located on the same side of the frame structure and between the second axle and the drive axle;

[0015] The power battery assembly is located on the other side of the frame structure and between the second bridge and the drive axle.

[0016] Preferably, the engine accessories and the methanol tank assembly or the gasoline tank assembly are located on different sides of the vehicle frame structure;

[0017] And the engine accessories are arranged between the first bridge and the second bridge.

[0018] Preferably, the engine accessories include an air intake duct assembly, an air filter assembly and an exhaust gas treatment assembly, and the air intake of the air intake duct assembly is higher than the exhaust port of the exhaust gas treatment assembly.

[0019] Preferably, the heat dissipation assembly includes an integrated frame, and the integrated frame is fixedly connected to the vehicle frame structure;

[0020] The integrated frame is provided with two layers in total. The lower layer accommodates a water cooling unit for temperature control of the drive motor assembly and the power battery assembly, an all-in-one controller assembly for current distribution, and a low-voltage battery assembly for powering all electronic accessories of the vehicle. The upper layer accommodates a battery cooling water supply pot for temperature control of the power battery assembly, a motor cooling water supply pot for temperature control of the drive motor assembly, and an electronic fan heat dissipation assembly.

[0021] The electronic fan heat dissipation assembly is arranged in front of the battery cooling water supply pot and the motor cooling water supply pot, and is used for heat dissipation of the battery cooling water supply pot and the motor cooling water supply pot;

[0022] The all-in-one controller assembly is electrically connected to the generator assembly, the drive motor assembly and the power battery assembly respectively.

[0023] Preferably, it further includes a brake actuation assembly, which includes an air cylinder and a dryer assembly arranged in the frame structure, the air cylinder is arranged on the rear side of the drive axle, and the dryer assembly is arranged between the second bridge and the drive axle.

[0024] An engineering vehicle comprises any one of the above-mentioned methanol range-extended power engineering vehicle chassis assemblies.

[0025] Compared with the prior art, the chassis assembly of the methanol range-extended power engineering vehicle provided by the present invention has at least the following beneficial effects:

[0026] 1. Arranging the engine assembly, generator assembly, drive motor assembly, and gearbox assembly inside the vehicle frame structure, utilizing the rigidity of the frame structure, helps to improve the protection of the above assemblies and facilitates the layout of the transmission system such as the drive shaft;

[0027] 2. The power battery assembly, engine accessories, and fuel storage tank are arranged on both sides of the frame structure, with the longitudinal beam as the installation foundation. This ensures installation stability, further expands the usable space of the frame structure, and further reduces the space limitations of the numerous assembly layouts.

[0028] 3. The heat dissipation assembly is arranged in the space between the cab and the engineering vehicle body, which further reduces the space occupied in the frame structure and increases the installation height of the heat dissipation assembly, thereby improving the working efficiency of the heat dissipation assembly.

[0029] The engineering vehicle provided by the present invention includes the above-mentioned methanol range-extended power engineering vehicle chassis assembly and has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0031] Figure 1 This is a structural schematic diagram of the chassis assembly of the methanol range-extended power engineering vehicle provided by the present utility model;

[0032] Figure 2 This is a schematic structural diagram of a specific frame structure provided by the present utility model;

[0033] Figure 3 This is a schematic structural diagram of the specific arrangement of the generator assembly and the drive motor assembly provided by the present utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the specific integrated framework provided by the utility model;

[0035] Figure 5 This is a schematic structural diagram of a specific engineering vehicle provided by the utility model.

[0036] In the picture:

[0037] 1. Longitudinal beam; 2. Horizontal beam;

[0038] 3. Engine assembly; 31. Fuel tank assembly; 32. Methanol tank assembly; 33. Exhaust gas treatment assembly; 34. Air filter assembly; 35. Intake duct assembly;

[0039] 4. Generator assembly; 5. Drive motor assembly; 6. Power battery assembly;

[0040] 7. Integrated frame; 71. Water cooling unit; 72. Battery cooling water supply pot; 73. Motor cooling water supply pot; 74. All-in-one controller assembly; 75. Electronic fan heat dissipation assembly;

[0041] 8. Transmission assembly; 9. Low-voltage battery assembly; 10. Air reservoir; 11. Dryer assembly. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] The core of this utility model is to provide a chassis assembly for a methanol range-extended power engineering vehicle. By making full use of the middle and both sides of the frame-type frame, the spatial arrangement problem of the range extender, power battery, high-voltage accessories and thermal management module is solved. At the same time, by setting the installation positions of different modules, the convenience of fuel filling and the safety of vehicle driving are further improved.

[0044] Another core of the utility model is to provide an engineering vehicle including the above-mentioned methanol range-extended power engineering vehicle chassis assembly, which has the same technical features and can solve the same technical problems.

[0045] Please refer to Figures 1-4 A methanol range-extended power engineering vehicle chassis assembly includes a frame structure consisting of two sets of longitudinal beams 1 and several sets of cross beams 2;

[0046] The engine assembly 3, the generator assembly 4, the drive motor assembly 5 and the gearbox assembly 8 are arranged in sequence from front to back inside the frame structure. The engine assembly 3 is power-connected to the generator assembly 4, the generator assembly 4 is electrically connected to the drive motor assembly 5, and the drive motor assembly 5 is power-connected to the gearbox assembly 8.

[0047] Engine accessories, a fuel storage tank, and a power battery assembly 6 are respectively provided on both sides of the exterior of the vehicle frame structure. The power battery assembly 6 is electrically connected to the drive motor assembly 5 and the generator assembly 4 respectively.

[0048] A heat dissipation assembly is provided above the frame structure, between the cab and the superstructure of the engineering vehicle, for controlling the temperature of the drive motor assembly 5 and the power battery assembly 6.

[0049] The frame structure is formed by two sets of longitudinal beams 1 and several sets of cross beams 2, which helps to improve the stability of the frame structure. In some embodiments, a reinforcement plate is provided at the connection position between the longitudinal beams 1 and the cross beams 2 to increase the overall stability of the frame structure.

[0050] At the same time, the engine assembly 3, generator assembly 4, drive motor assembly 5 and gearbox assembly 8 for providing power are arranged in the space inside the frame structure, and the frame-shaped frame structure is used to increase its protection capability. The engine accessories, fuel storage tank and power battery assembly 6 for air intake and exhaust and energy supply are arranged outside the frame structure to facilitate energy filling and ensure smooth air intake and exhaust. At the same time, the heat dissipation assembly is arranged above the frame structure to increase its installation height, thereby facilitating the improvement of the heat exchange efficiency of the heat dissipation assembly and the heat dissipation performance of the drive motor assembly 5 and the power battery assembly 6.

[0051] At the same time, energy conversion occurs inside the engine assembly 3, the generator assembly 4, the drive motor assembly 5, and the gearbox assembly 8, such as the conversion of chemical energy of fuel into mechanical energy, mechanical energy into electrical energy, and electrical energy into mechanical energy. All of these involve mechanical energy, so arranging the above assemblies within the vehicle frame structure helps to prevent the above mechanical energy from being disturbed by the outside world when performing work.

[0052] In actual operation, when the vehicle is started, the power battery assembly 6 supplies power to the generator assembly 4, which converts electrical energy into mechanical energy and drives the engine assembly 3 to rotate in reverse. During this process, the supply system in the fuel storage tank supplies fuel to the engine assembly 3, allowing the engine assembly 3 to run smoothly, thereby converting the chemical energy of the fuel into mechanical energy, driving the generator assembly 4 to convert the mechanical energy into electrical energy. The electrical energy can be transferred to the power battery assembly 6 for storage through high-voltage wires, or transferred to the drive motor assembly 5 for conversion into mechanical energy. The drive motor assembly 5 is connected to the drive axle through the gearbox assembly 8, thereby driving the vehicle;

[0053] When the vehicle load is heavy, all the electric energy produced by the generator assembly 4 acts on the drive motor assembly 5, and the power battery assembly 6 simultaneously provides part of the electric energy for the drive motor assembly 5 to meet the load requirement of the drive motor assembly 5;

[0054] When the vehicle load is light or in pure electric mode, such as parking mode, the engine assembly 3 and generator assembly 4 stop working. When starting or frequently braking, the power battery assembly 6 can supply power to the drive motor assembly 5 alone, achieving pure electric drive. This allows the engine assembly 3 to always operate in the high-efficiency zone, saving 30% energy compared to direct fuel drive.

[0055] At the same time, the fuel storage tank includes a gasoline tank assembly 31 and a methanol tank assembly 32. During the startup phase of the engine assembly 3, the gasoline tank assembly 31 supplies fuel to facilitate a quick startup of the engine assembly 3. After the engine assembly 3 enters the high-efficiency zone, the fuel is switched to the methanol tank assembly 32, thereby improving exhaust emissions.

[0056] In some embodiments, the engine assembly 3 and the generator assembly 4 are arranged on the front side of the first bridge, the drive motor assembly 5 and the gearbox assembly 8 are arranged between the second bridge and the drive axle, and the gearbox assembly 8 is power-connected to the drive axle;

[0057] like Figure 1 and Figure 3As shown, the engine assembly 3 and the generator assembly 4 are arranged in front of the first bridge, which facilitates the arrangement of the engine heat dissipation assembly at the front of the vehicle, that is, the engine heat dissipation at the front of the vehicle is realized. The drive motor assembly 5 and the gearbox assembly 8 are arranged between the second bridge and the drive axle, which can shorten the length of the drive shaft and reduce the space occupied by the drive shaft. The weight of the engine assembly 3 and the generator assembly 4 is balanced, so that the center of gravity of the entire vehicle is close to the center of the chassis assembly, thereby improving the driving experience of the vehicle.

[0058] At the same time, when designing the frame structure, the width of the front end of the frame structure can be made wider than the rear end, which facilitates the arrangement of the engine cooling assembly. At the same time, the power steering system can be arranged at the front end of the frame structure to facilitate the steering control of the vehicle.

[0059] In some embodiments, the fuel storage tank includes a methanol tank assembly 32 and a gasoline tank assembly 31 , wherein the methanol tank assembly 32 and the gasoline tank assembly 31 are located on the same side of the vehicle frame structure and between the secondary axle and the drive axle;

[0060] The power battery assembly 6 is located on the other side of the frame structure and between the second axle and the drive axle;

[0061] like Figure 1 As shown, the methanol tank assembly 32 and the gasoline tank assembly 31 are arranged on the same side, and on a different side from the power battery assembly 6. This separates the flammable fuel from the high-voltage power battery assembly 6, eliminating potential safety hazards such as contact between the fuel and the power battery assembly 6 in the event of a fuel leak, or contact between the power battery assembly 6 and the fuel storage tank in the event of a damage.

[0062] At the same time, the fuel storage tank and power battery assembly 6 are arranged on both sides of the frame structure and between the second bridge and the drive bridge, which can reduce the encroachment of the above-mentioned assemblies on the cockpit position, and also play a role in balancing the front and rear and left and right weight of the vehicle, thereby bringing the center of the chassis assembly and the center of gravity closer to each other, thereby improving the driving experience.

[0063] In some embodiments, gasoline is only used as fuel for the engine assembly 3 during startup, so the demand for gasoline is relatively low. Therefore, the gasoline tank assembly 31 is positioned between the first and second axles, and the methanol tank assembly 32 is independently positioned between the second axle and the drive axle, thereby increasing the capacity of the methanol tank assembly 32. This solution also falls within the scope of protection of this application.

[0064] In some embodiments, the engine accessories and the methanol tank assembly 32 or the gasoline tank assembly 31 are on different sides of the vehicle frame structure;

[0065] and the engine accessories are arranged between the first bridge and the second bridge;

[0066] The engine accessories include an exhaust treatment assembly 33. When the engine assembly 3 is operating, it produces high-temperature exhaust gas. Placing the engine accessories on different sides of the fuel storage tank helps prevent direct contact between the high-temperature exhaust gas and the fuel storage tank, eliminating the fire hazard caused by the high-temperature exhaust gas in the fuel storage tank. Furthermore, locating the engine accessories between the first and second bridges keeps them close to the engine assembly 3, reducing the length of the pipes and ensuring smooth intake and exhaust.

[0067] In some embodiments, in order to further improve the exhaust gas treatment effect or due to the limitations of the layout of the engine assembly 3, the exhaust gas treatment assembly 33 is directly set at the exhaust end of the engine assembly 3, that is, the exhaust gas treatment assembly 33 is directly set in the frame structure along with the engine assembly 3, which also falls within the scope of protection of this application.

[0068] In some embodiments, the engine accessories include an air intake assembly 35, an air filter assembly 34, and an exhaust gas treatment assembly 33, wherein the air intake of the air intake assembly 35 is higher than the exhaust of the exhaust gas treatment assembly 33;

[0069] Raising the air intake height helps prevent water from entering the air intake of the engine assembly 3 and improves the vehicle's wading capability.

[0070] In some embodiments, the heat dissipation assembly includes an integrated frame 7, which is fixedly connected to the vehicle frame structure;

[0071] The integrated frame 7 is provided with two layers. The lower layer accommodates a water cooling unit 71 for temperature control of the drive motor assembly 5 and the power battery assembly 6, an all-in-one controller assembly 74 for current distribution, and a low-voltage battery assembly 9 for powering the electronic accessories of the entire vehicle. The upper layer accommodates a battery cooling water supply pot 72 for temperature control of the power battery assembly 6, a motor cooling water supply pot 73 for temperature control of the drive motor assembly, and an electronic fan heat dissipation assembly 75.

[0072] The electronic fan heat dissipation assembly 75 is arranged in front of the battery cooling water supply pot 72 and the motor cooling water supply pot 73 to dissipate heat from the battery cooling water supply pot 72 and the motor cooling water supply pot 73;

[0073] The all-in-one controller assembly 74 is electrically connected to the generator assembly 4 , the drive motor assembly 5 and the power battery assembly 6 respectively.

[0074] By providing the integrated frame 7, the space between the cockpit and the engineering vehicle body can be used for three-dimensional storage, thereby increasing the storage capacity;

[0075] At the same time, the battery cooling water supply pot 72 and the motor cooling water supply pot 73 are placed on the upper layer of the integrated frame 7 to facilitate the filling of cooling water and the heat dissipation of the cooling water supply pots. At the same time, the water cooling unit 71 is placed on the lower layer, which helps to lower the overall center of gravity of the integrated frame 7 to improve its stability during driving. At the same time, the all-in-one controller assembly 74 is arranged in the integrated frame 7, so that it has a better air-cooled heat dissipation environment and thus has good heat dissipation performance.

[0076] In some embodiments, a two-in-one water cooling unit 71 is used for thermal management of the battery and cooling of the cockpit, thereby reducing equipment and saving layout space.

[0077] In some embodiments, a brake actuation assembly is further included, the brake actuation assembly including an air reservoir 10 and a dryer assembly 11 arranged in the frame structure, the air reservoir 10 is arranged at the rear side of the drive axle, and the dryer assembly 11 is arranged between the second axle and the drive axle;

[0078] like Figure 1 and Figure 3 As shown, the air reservoir 10 is arranged at the inner rear end of the frame structure, which improves its protection performance while ensuring its convenience in maintenance. The dryer assembly 11 is arranged between the second bridge and the drive axle, so that it is in the center of the vehicle, which makes it convenient to arrange the pipelines between the dryer assembly 11 and the brake actuators of each wheel.

[0079] In addition to the methanol-range-extended-powered engineering vehicle chassis assembly disclosed in the above-mentioned embodiments, the present invention also provides an engineering vehicle including the above-mentioned methanol-range-extended-powered engineering vehicle chassis assembly. For the structures of other parts of the engineering vehicle, please refer to the prior art and will not be described in detail herein.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above describes in detail the chassis assembly and engineering vehicle for a methanol-range extended-powered engineering vehicle provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a number of improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A methanol range-extended power engineering vehicle chassis assembly, characterized in that: A frame structure comprising two groups of longitudinal beams (1) and a plurality of groups of transverse beams (2); The engine assembly (3), the generator assembly (4), the drive motor assembly (5) and the gearbox assembly (8) are arranged in sequence from front to back inside the frame structure, the engine assembly (3) is connected to the generator assembly (4) by power, the generator assembly (4) is electrically connected to the drive motor assembly (5), and the drive motor assembly (5) is connected to the gearbox assembly (8) by power; Engine accessories, a fuel storage tank, and a power battery assembly (6) are respectively provided on both sides of the exterior of the frame structure, and the power battery assembly (6) is electrically connected to the drive motor assembly (5) and the generator assembly (4) respectively; A heat dissipation assembly is provided above the vehicle frame structure, between the cab and the upper body of the engineering vehicle, for controlling the temperature of the drive motor assembly (5) and the power battery assembly (6).

2. The chassis assembly of the methanol range-extended power engineering vehicle according to claim 1 is characterized in that: The engine assembly (3) and the generator assembly (4) are arranged on the front side of the first bridge, the drive motor assembly (5) and the gearbox assembly (8) are arranged between the second bridge and the drive bridge, and the gearbox assembly (8) is power-connected to the drive bridge.

3. The chassis assembly of the methanol range-extended power engineering vehicle according to claim 1 is characterized in that: The fuel storage tank includes a methanol tank assembly (32) and a gasoline tank assembly (31), wherein the methanol tank assembly (32) and the gasoline tank assembly (31) are located on the same side of the vehicle frame structure and between the second axle and the drive axle; The power battery assembly (6) is located on the other side of the vehicle frame structure and between the second axle and the drive axle.

4. The chassis assembly of the methanol range-extended power engineering vehicle according to claim 3 is characterized in that: The engine accessories and the methanol tank assembly (32) or the gasoline tank assembly (31) are located on different sides of the vehicle frame structure; And the engine accessories are arranged between the first bridge and the second bridge.

5. The chassis assembly of the methanol range-extended power engineering vehicle according to claim 4 is characterized in that: The engine accessories include an air intake duct assembly (35), an air filter assembly (34), and an exhaust gas treatment assembly (33), wherein the air intake of the air intake duct assembly (35) is higher than the exhaust port of the exhaust gas treatment assembly (33).

6. The chassis assembly of a methanol range-extended power engineering vehicle according to claim 1, characterized in that: The heat dissipation assembly comprises an integrated frame (7), and the integrated frame (7) is fixedly connected to the vehicle frame structure; The integrated frame (7) is provided with two layers in total, the lower layer accommodating a water cooling unit (71) for temperature control of the drive motor assembly (5) and the power battery assembly (6), an all-in-one controller assembly (74) for current distribution, and a low-voltage battery assembly (9) for powering electronic accessories of the entire vehicle, and the upper layer accommodating a battery cooling water supply pot (72) for temperature control of the power battery assembly (6), a motor cooling water supply pot (73) for temperature control of the drive motor assembly, and an electronic fan heat dissipation assembly (75); The electronic fan heat dissipation assembly (75) is arranged in front of the battery cooling water supply pot (72) and the motor cooling water supply pot (73) and is used for heat dissipation of the battery cooling water supply pot (72) and the motor cooling water supply pot (73); The all-in-one controller assembly (74) is electrically connected to the generator assembly (4), the drive motor assembly (5) and the power battery assembly (6) respectively.

7. The methanol range-extended power engineering vehicle chassis assembly according to any one of claims 1 to 6, characterized in that: The vehicle also includes a brake actuation assembly, which includes an air reservoir (10) and a dryer assembly (11) arranged in the vehicle frame structure. The air reservoir (10) is arranged at the rear side of the drive axle, and the dryer assembly (11) is arranged between the second axle and the drive axle.

8. An engineering vehicle, characterized in that: The invention comprises the chassis assembly of a methanol range-extended power engineering vehicle as described in any one of claims 1 to 7.

Images