CN221163006U

CN221163006U - Chassis arrangement structure of range-extending hybrid power tractor

Info

Publication number: CN221163006U
Application number: CN202322277400.4U
Authority: CN
Inventors: 候海贵; 方慧平; 王小龙; 吴苗苗; 蒋娴文; 温旭鸽
Original assignee: Shaanqi Group Commercial Vehicle Co ltd
Current assignee: Shaanqi Group Commercial Vehicle Co ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-06-18
Anticipated expiration: 2033-08-24

Abstract

The utility model provides a chassis arrangement structure of a range-extending hybrid power tractor, which comprises a frame, wherein the frame comprises a left longitudinal beam, a right longitudinal beam and two cross beams, the two cross beams divide the frame into a frame front part, a frame middle part and a frame rear part, a frame structure is arranged at the front end of the frame and positioned at the rear position of a vehicle cab, one end of the frame structure is connected with the frame, the chassis arrangement structure also comprises a range extender system and a thermal management system, the range extender system is arranged at the front part of the frame and is horizontally submerged, the range extender system is suspended and fixed between the range extender system and the frame, a suspension mounting point is positioned at the lower end of the ventral surface of the frame and is longitudinally arranged along the vehicle, the thermal management system comprises an engine, a coupling, a speed increasing box and a generator assembly, and three sets of cooling systems are arranged between the cab and the frame structure and are all arranged on the frame structure. The defect that the vehicle wheelbase is increased or the vehicle turning radius space is occupied due to the fact that range-increasing equipment is added in the prior art can be overcome.

Description

Chassis arrangement structure of range-extending hybrid power tractor

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a chassis arrangement structure of a range-extending hybrid power tractor.

Background

The utility model can solve the problem of total arrangement of the extended-range hybrid power. The range extender type vehicle is characterized in that a high-power range extender, a high-capacity power battery, a motor, a transmission, a control system and an electrified auxiliary machine system are added on a traditional CNG tractor. And a thermal management system corresponding to the system is also required to be added in a matched manner. In addition, because the required temperatures of the engine, the motor, the battery and the controller are different, the influence of heat radiation among the systems is avoided; the total layout work requires the analysis of heat radiation before the start.

The laws and regulations have the size requirement on the front and back turning radius of the semi-trailer tractor; the length of the trailer and the total length of the semi-trailer train are required correspondingly. On the premise of not increasing the wheelbase and not occupying the radius space of the trailer, the trailer is designed in a generalized way as much as possible, and the reasonable front and rear axle load distribution and the convenient maintenance are met, so that the high requirement is put forward on the total arrangement of the whole trailer.

Disclosure of utility model

Therefore, the utility model provides a chassis arrangement structure of a range-extending hybrid power tractor, which can overcome the defect that the vehicle wheelbase is increased or the vehicle turning radius space is occupied due to the fact that range-extending equipment is added in the prior art.

In order to solve the problems, the utility model provides a chassis arrangement structure of a range-extending hybrid power tractor, which comprises a frame, wherein the frame comprises a left longitudinal beam, a right longitudinal beam and a cross beam, the frame is divided into a frame front part, a frame middle part and a frame rear part, a frame structure is arranged at the position, which is positioned behind a vehicle cab, of the frame front end, one end of the frame structure is connected with the frame.

In some embodiments, the engine is located in the middle position of the front part of the frame, the engine cooling system is arranged at the front end of the engine, the rear end of the engine is connected with the speed increasing box and the power generator assembly through a flywheel shell, one end of the coupler is connected inside the rear end of the engine through a flywheel disc, the other end of the coupler is connected with the speed increasing box and the power generator assembly, the engine comprises an engine exhaust aftertreatment system and an engine air inlet system, the engine exhaust aftertreatment system is located on the outer side of the right longitudinal beam and projects from top to bottom, the engine exhaust aftertreatment system is located at the right rear of the engine, and an air filter of the engine air inlet system is located above the flywheel shell or below a bottom plate of a cab.

In some embodiments, the extended range hybrid tractor chassis arrangement further includes a fuel supply system that is either a CNG/LNG fuel supply system or a fuel/methanol supply system.

When the fuel supply system is a CNG/LNG fuel supply system, the CNG/LNG fuel supply system is arranged in the frame structure, and the battery supply system is arranged on the left outer side surface and the right outer side surface of the middle part of the frame.

When the fuel supply system is a fuel/methanol supply system, the fuel/methanol supply system is positioned on the left and right outer side surfaces of the middle part of the frame, and the battery supply system is positioned in the frame structure.

In some embodiments, when the CNG/LNG fuel supply system is disposed in the frame structure, and the battery supply system is disposed on the left and right outer sides of the middle of the frame, the battery supply system is fixed on the frame through a battery bracket, and the battery bracket is two layers, wherein one layer is provided with a battery system control box and a battery thermal management unit.

When the fuel/methanol supply system is positioned on the left outer side surface and the right outer side surface of the middle part of the frame and the battery supply system is positioned in the frame structure, the battery system control box and the battery thermal management unit are arranged on the frame structure.

In some embodiments, the range-extending hybrid tractor chassis arrangement further includes a drive system including a drive motor and a transmission mounted in the mid-frame and interconnected, with a transmission output flange at a rear end of the transmission being connected to an axle by a drive shaft.

In some embodiments, the drive motors are 1, or 2.

In some embodiments, the range-extending hybrid traction vehicle chassis arrangement further includes a control system including an integrated controller mounted to a side of the frame structure proximate the frame and a generator controller disposed rearward of the transmission.

In some embodiments, the range-extending hybrid tractor chassis arrangement further includes an auxiliary system including an electric air conditioner compressor mounted on the housing of the engine, an electric steering oil pump mounted at the left front wheel outside the frame, and a brake system including an electric air compressor sharing a mounting bracket with the integrated controller.

In some embodiments, the range-extending hybrid tractor chassis arrangement further includes a steering motor disposed outboard of the left side rail and centered on the front axle.

According to the chassis arrangement structure of the range extender type hybrid power tractor, the range extender system is arranged at the central position of the frame and is positioned on the inner sides of the left longitudinal beam and the right longitudinal beam and close to the front position, and the whole chassis arrangement structure is horizontally arranged, so that the inclination angle of an engine is eliminated, and the occupied length and the occupied height dimension of the range extender system (A) after arrangement are reduced by about 40-150mm. And simultaneously, the engine moves forwards, so that the arrangement space is maximally utilized. The structure is compact, more subsystems can be arranged in a limited wheelbase, and the utilization rate of the front middle space of the vehicle is high; in addition, through the heat flow field and the heat radiation analysis of the whole vehicle, measures such as heat source and heat dissipation channels, heat radiation isolation and the like are reasonably arranged, and the heat radiation interaction of all subsystems of the whole vehicle is guaranteed to the greatest extent. And finally, the height of the range extender system is reduced, and the height of the drive system assembly is reduced, so that the gravity center of the whole vehicle is lower, the high-speed running is more stable, and the maintenance convenience is also considered.

Drawings

Fig. 1 is a schematic structural view of an extended range hybrid tractor chassis arrangement according to an embodiment of the present utility model.

The reference numerals are expressed as:

1. a cab; 2. an engine; 3. an engine cooling system; 4. an electric steering oil pump; 5. a left longitudinal beam; 6. a right longitudinal beam; 7. a first cross beam; 8. a second cross beam; 9. speed increasing box and generator assembly; 10. a driving motor; 11. a transmission; 12. a first generator controller; 13. a second generator controller; 14. a transmission output flange; 15. a left battery system; 16. a right side battery system; 17. a frame structure 17; 18. an exhaust aftertreatment system; 19. a generator and controller cooling system; 20. expansion water tank of battery thermal management system; 21. a drive motor and a control system cooling system; 22. an integrated controller; 23. an electric air compressor; 24. a battery system control box; 25. a battery thermal management unit; 26. flywheel casing; 27. an electric air conditioner compressor.

Detailed Description

Referring to fig. 1 in combination, the front, rear, left and right are referred to as the forward, backward, leftward and rightward directions along the traveling direction of the vehicle, the forward direction of the vehicle is the front, the reverse direction is the rear, the main driving side is the left, and the reverse direction is the right, according to the embodiment of the present utility model. The utility model provides a chassis arrangement structure of a range extender type hybrid power tractor, which comprises a range extender system, a driving system, a battery system, a fuel supply system, a control system, an auxiliary machine system, a thermal management system, a frame system and a cab system.

The range extender system comprises an engine cooling system 3, an engine 2, a flywheel housing 26, a flexible coupling, a speed increasing box and generator assembly 9, an engine exhaust aftertreatment system 18 and an engine air inlet system; wherein the number of generators may be 1 or 2. Their mounting relationship it can be seen from fig. 1 that the engine 2 is placed in the front of the vehicle, in the middle of the frame, the engine cooling system 3 is located before the engine fan, the exhaust aftertreatment system 18 is located on the right side of the frame right rail 6, and the engine 2 is located right behind. The outer flywheel casing 26 at the rear end of the engine 2 is connected with the speed increasing box and generator assembly 9 through a stud, the inner flywheel disc is connected with one end of a flexible coupling, and the other end of the flexible coupling is connected with the speed increasing box and generator assembly 9 through spline teeth. The mounting mode is fixed through four-point suspension and is arranged along the length direction of the vehicle. The range extender system is horizontally arranged without an inclined angle and is sunk, and the suspension mounting point is positioned at the lowest end of the ventral surface of the frame. The engine air intake system air filter is located above the engine flywheel housing 26 or below the cab floor. The range extender system is arranged at the central position of the frame and positioned at the inner sides of the left longitudinal beam 5 and the right longitudinal beam 6 and close to the front position, and is horizontally arranged as a whole, the inclination angle of the engine is eliminated by the arrangement mode, and the occupied length and the height dimension of the range extender system after the arrangement are reduced by about 40-150mm. And simultaneously, the engine moves forwards, so that the arrangement space is maximally utilized. While the cooling system, air conditioning condensing system arrangement before the engine is substantially unchanged.

The frame system comprises a plurality of cross beams, a left longitudinal beam 5 and a right longitudinal beam 6, wherein the left longitudinal beam 5 and the right longitudinal beam 6 are arranged along the length direction of a vehicle, are symmetrically arranged on the left side and the right side of the bottom of the vehicle, are vertically arranged with the left longitudinal beam and the right longitudinal beam, and are distributed along the length direction of the left longitudinal beam and the right longitudinal beam.

The battery systems are arranged on two sides of the left longitudinal beam 5 and the right longitudinal beam 6 and are symmetrically arranged, the positions of the battery systems are close to the middle rear end of the frame, the capacity of the battery systems is large, the battery systems are divided into a left battery system 15 and a right battery system 16, the rear ends of the left/right battery systems are close to a mud guard of a driving axle tire, each battery pack in the left/right battery systems is provided with heat insulation cotton, and the outermost side of each battery pack is provided with a protective shell. The left/right battery system mounting brackets are two layers, and a battery system control box 24 and a battery thermal management unit 25 are arranged on the lower layer of the left battery system 15 mounting bracket, and the heat dissipation air flow of the battery thermal management unit 25 faces the rear direction of the vehicle. The battery system is used as a middle node, and two ends of the battery system are respectively connected with the range extender system and the driving system through high-voltage wire harnesses, so that the effect of energy adjustment is achieved. The battery system is arranged on the two sides of the outer sides of the left longitudinal beam 5 and the right longitudinal beam 6 and symmetrically arranged, and the battery system is positioned close to the mud guard of the driving wheel and cannot be arranged backwards. The driving system is positioned at the middle and rear parts of the left and right longitudinal beams of the frame, and any part of the driving system is ensured not to exceed the shortest upper wing surface of the frame and the transmission shaft.

The driving system comprises a driving motor 10 and a speed changer 11, the driving motor 10 and the speed changer 11 are arranged at the central position of the frame and are positioned at the inner sides of the left longitudinal beam 5 and the right longitudinal beam 6, a first cross beam 7 and a second cross beam 8 are respectively arranged on front and rear cross beams of the driving motor 10 and the speed changer 11, meanwhile, 2 or 1 driving motors 10 can be arranged, and a speed changer output flange 14 at the rear end of the speed changer 11 is connected with an axle through a transmission shaft.

The fuel feed system is CNG/LNG fuel feed system, perhaps is fuel/methyl alcohol feed system, when the fuel feed system is CNG/LNG fuel feed system, CNG/LNG fuel feed system is located the frame construction 17 at frame upper airfoil upper portion, and CNG/LNG gas cylinder assembly is placed on the frame upper airfoil through the bottom longeron of its frame construction 17, and its left and right sides set up two connecting plates respectively and link to each other with the frame through the bolt. The gas cylinder assembly can be any one of 1 layer, 2 layers, 3 layers and 4 layers, and each layer is provided with 2 gas cylinders. The exterior is protected by a skin.

When the fuel supply system is a fuel/methanol supply system, the fuel/methanol supply system is installed in the left and right side battery systems 15 and 16 in the frame structure 17.

The control system includes an integrated controller 22, a vehicle controller, a first generator controller 12, a second generator controller 13, a shift controller, and a battery system control box 24. The whole vehicle controller controls the other controllers in real time according to the intention of a driver. The integrated controller 22 integrates a driving motor 10 controller, an electric air compressor 23 controller, an electric air conditioner compressor 27 controller, an electric steering oil pump 4 controller, a warm air controller and a 24V power converter. The integrated controller 22 is arranged on the left front lower side of the frame structure 17 and outside the frame; the first generator controller 12 and the second generator controller 13 are arranged in the middle of the frame, at the rear part of the transmission 11 and above the transmission shaft. The generator controller in the control system is arranged in the center of the frame system, and the front-rear direction is basically consistent with the position of the battery system. The all-in-one controller is arranged outside the left longitudinal beam, below the CNG fuel supply system and close to the position of the front wheel mud guard. The position is convenient for the arrangement and trend of the high-voltage wire harness, is very close to the motor, and reduces the use length of the high-voltage wire harness.

The auxiliary system comprises an electric air conditioner compressor 27, an electric steering oil pump 4, a 24V power converter and warm air. The electric air-conditioning compressor 27 is mounted on the engine housing at the left front middle; an electric steering oil pump 4 is installed near the left front wheel, outside the frame;

The thermal management system comprises an engine cooling system 3, a generator and controller cooling system 19, a battery thermal management system and a driving motor and control system cooling system 21; the generator and controller cooling system 19 and the drive motor and control system cooling system 21 are arranged in the interspace between the cab 1 and the frame structure 17 symmetrically left and right above the vehicle frame. The air inlets are arranged at the outermost sides of the left side and the right side and are basically level with the outer sides of the cab. The uppermost positions of the driving motor and control system cooling system 21 and the generator and controller cooling system 19 are provided with a first expansion tank. The expansion tank 20 of the battery thermal management system is arranged at the right side of the cooling system of the driving motor and the control system and at the same height and is arranged on the frame structure 17

The cab system is located above the front engine of the vehicle. A number of buttons for hybrid power and control operation buttons are newly added in the cab.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a range-extending hybrid power tractor chassis arrangement structure, includes the frame, the frame includes left longeron (5), right longeron (6) and crossbeam, the frame divide into frame front portion, frame middle part and frame rear portion, frame front end just is located vehicle cab (1) rear position and is provided with frame construction (17), frame construction (17) one end with the frame is connected, its characterized in that still includes range extender system and thermal management system, range extender system set up in the frame front portion is the horizontal direction and sinks to arrange, it with the suspension is fixed between the frame, the suspension mounting point is located frame ventral lower extreme, along vehicle longitudinal arrangement, it includes engine (2), shaft coupling, speed increasing box+generator assembly (9) that set gradually from front to back, thermal management system is including arranging engine cooling system (3), generator and controller cooling system (19) and driving motor and control system cooling system (21) between driver's cabin (1) with frame construction (17), and three sets of cooling system all set up in on frame construction (17).

2. The range-extending hybrid traction vehicle chassis arrangement structure according to claim 1, wherein the engine (2) is located at a front middle position of the frame, the engine (2) front end is provided with the engine cooling system (3), the rear end of the engine (2) is connected with the speed increasing box+generator assembly (9) through a flywheel housing (26), the inside of the rear end of the engine (2) is connected with one end of the coupling through a flywheel disc, the other end of the coupling is connected with the speed increasing box+generator assembly (9), the engine (2) comprises an engine exhaust aftertreatment system (18) and an engine air intake system, the engine exhaust aftertreatment system (18) is located on the outer side of the right longitudinal beam (6), the engine exhaust aftertreatment system (18) is located on the right rear of the engine (2), an air filter of the engine air intake system is located above the flywheel housing (26) or below a cab floor.

3. The extended range hybrid traction vehicle chassis arrangement of claim 1, further comprising a fuel supply system that is either a CNG/LNG fuel supply system or a fuel/methanol supply system;

When the fuel supply system is a CNG/LNG fuel supply system, the CNG/LNG fuel supply system is arranged in the frame structure (17), and the battery supply systems are arranged on the left outer side surface and the right outer side surface of the middle part of the frame;

When the fuel supply system is a fuel/methanol supply system, the fuel/methanol supply system is positioned on the left and right outer side surfaces of the middle part of the frame, and the battery supply system is positioned in the frame structure (17).

4. The extended range hybrid traction vehicle chassis arrangement structure according to claim 3, wherein when the CNG/LNG fuel supply system is provided in the frame structure (17), the battery supply system is provided on both left and right outer sides of the middle part of the vehicle frame, the battery supply system is fixed on the vehicle frame by a battery bracket, the battery bracket has two layers, one layer is provided with a battery system control box (24) and a battery thermal management unit (25);

When the fuel/methanol supply system is positioned on the left and right outer sides of the middle part of the frame and the battery supply system is positioned in the frame structure (17), the battery system control box (24) and the battery thermal management unit (25) are arranged on the frame structure (17).

5. The extended range hybrid traction vehicle chassis arrangement of claim 1, further comprising a drive system including a drive motor (10) and a transmission (11) mounted in the mid-frame and interconnected, a transmission output flange (14) at the rear end of the transmission (11) being connected to an axle by a drive shaft.

6. The extended range hybrid traction vehicle chassis arrangement according to claim 5, wherein the drive motors (10) are 1 or 2.

7. The extended range hybrid traction vehicle chassis arrangement of claim 5, further comprising a control system including an integrated controller (22) and a generator controller, the integrated controller (22) being mounted to a side of the frame structure (17) proximate the frame, the generator controller being disposed rearward of the transmission (11).

8. The extended range hybrid traction vehicle chassis arrangement according to claim 7, further comprising an auxiliary system comprising an electric air-conditioning compressor (27), an electric steering oil pump (4) and a brake system, the electric air-conditioning compressor (27) being mounted on the housing of the engine (2), the electric steering oil pump (4) being mounted at the left front wheel outside the frame, the brake system comprising an electric air compressor (23), the electric air compressor (23) sharing a mounting bracket with the integrated controller (22).

9. The extended range hybrid traction vehicle chassis arrangement of claim 1, further comprising a steering motor disposed outboard of the left side rail and centered on the front axle.