Range-extending type vehicle capable of improving working noise

Abstract

The utility model discloses an extended-range vehicle capable of improving working noise, and belongs to the technical field of automobiles. The problem that in the prior art, when a range extender of an extended-range automobile is started, large noise can be generated is solved. The automobile mainly comprises an automobile body, the automobile body comprises a rear auxiliary frame, a range extender and a battery, the range extender is arranged on the rear side of the battery, and the range extender is installed on the rear auxiliary frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to an extended-range vehicle with improved working noise. Background Art

[0002] Range-extended vehicles are powered by power batteries and driven by electric motors. As an auxiliary power source, the range extender does not participate in driving and only starts to charge the power battery when the power battery is low. Range-extended vehicles are becoming more and more popular in the market because they offer a driving experience comparable to that of pure electric vehicles and can alleviate the range anxiety of pure electric vehicles to a certain extent.

[0003] At present, the range extender of the extended-range vehicle is generally arranged in the engine room on the front side of the vehicle body, and the engine room is close to the cab, which causes the range extender to transmit greater vibration and noise to the cab when starting. In addition, in order to ensure fuel consumption, the starting speed of the range extender is higher than that of the fuel vehicle engine, and the starting noise is greater. The large noise generated by the range extender of the extended-range vehicle when starting seriously affects the NVH performance of the extended-range vehicle and is criticized by many consumers. Therefore, how to improve the NVH performance of the extended-range electric vehicle has become a major issue in the development of the extended-range electric vehicle industry. Summary of the invention

[0004] The utility model aims to provide an extended-range vehicle with improved working noise, so as to overcome the defect in the prior art that the extended-range vehicle generates relatively large noise when the range extender is started.

[0005] The utility model is realized by adopting the following technical scheme: a range-extended vehicle with improved working noise comprises a vehicle body, wherein the vehicle body comprises a rear sub-frame, a range extender and a battery, wherein the range extender is arranged at the rear side of the battery and is mounted on the rear sub-frame.

[0006] Furthermore, the automobile body also includes a drive motor, which is installed on the front side of the battery, and the drive motor drives the front wheels of the automobile body to rotate.

[0007] Furthermore, the rear subframe includes left and right longitudinal beams, a rear cross beam is installed on the rear side between the longitudinal beams on both sides, a left suspension assembly is installed on the front side of the left longitudinal beam of the two longitudinal beams, and a right suspension assembly is installed on the front side of the right longitudinal beam of the two longitudinal beams, and an intermediate cross beam is also installed between the longitudinal beams on both sides, and the rear suspension assembly is installed on the intermediate cross beam, and the range extender is installed on the rear subframe through the rear suspension assembly, the left suspension assembly and the right suspension assembly.

[0008] Furthermore, the right end of the engine on the range extender is connected to the exhaust manifold, the exhaust manifold is connected to the exhaust pipe, and the exhaust pipe is arranged to be tilted downward and form a V-shaped structure with the engine.

[0009] Furthermore, the exhaust port of the exhaust pipe is arranged at the rear end of the automobile body, and the exhaust port of the exhaust pipe is bent downward.

[0010] Furthermore, the engine is connected to an air filter, the air filter is provided with an air inlet pipe and an air outlet pipe, the air filter is connected to the engine via the air outlet pipe, an air filter tray is installed on the floor under the body of the automobile body, and the air filter is fixedly installed on the air filter tray.

[0011] Furthermore, the automobile body is provided with a fuel tank between the battery and the rear sub-frame, and the fuel tank is fixed to the floor under the automobile body by a strap.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model installs the range extender on the rear subframe, that is, the range extender is arranged on the rear side of the bottom of the vehicle body, so that the range extender is far away from the cab of the car, reducing the noise and vibration transmitted to the cab, effectively improving the NVH performance of the extended-range electric vehicle, and changing the current situation in which the range extender 3 of the extended-range car is arranged in the cabin on the front side of the vehicle body.

[0014] 2. The utility model arranges the range extender at the rear side of the bottom of the vehicle body, so that the exhaust pipe no longer needs to cross from the front to the rear of the vehicle, and there is no need to worry about the gap between the power battery and the exhaust pipe and the heat damage problem.

[0015] 3. The utility model arranges the range extender at the rear side of the bottom of the vehicle body, so that the layout space of the cabin on the front side of the vehicle body is larger, and the independent parts such as the brake module, PDU, DCDC, compressor, OBC, etc. can be arranged in the cabin, making the cabin simple and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 It is a top view of the range extender of the utility model when it is installed on the rear subframe;

[0018] Figure 3 It is a side view of the range extender of the utility model when it is installed on the rear subframe;

[0019] Figure 4 It is a schematic diagram of the rear subframe of the utility model;

[0020] Figure 5 It is a schematic diagram of the installation of the air filter of the utility model.

[0021] In the figure: 1. Vehicle body; 2. Rear subframe; 3. Range extender; 4. Battery; 5. Longitudinal beam; 6. Rear cross beam; 7. Left suspension assembly; 8. Middle cross beam; 9. Rear suspension assembly; 10. Intake pipe; 11. Exhaust pipe; 12. Engine; 13. Exhaust manifold; 14. Exhaust port; 15. Air filter; 16. Exhaust pipe; 17. Air filter tray; 18. Fuel tank; 19. Underfloor of vehicle body; 20. Drive motor; 21. Right suspension assembly. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] An extended-range vehicle with improved working noise includes a vehicle body 1, wherein the vehicle body 1 includes a rear subframe 2, a range extender 3 and a battery 4, wherein the range extender 3 is arranged at the rear side of the battery 4 and is mounted on the rear subframe 2.

[0024] The rear subframe 2 and the battery 4 of the utility model are both installed on the underbody floor 19 of the automobile body 1, and the body of the automobile body 1 is a load-bearing body. By installing the range extender 3 on the rear subframe 2, that is, the range extender 3 is arranged on the rear side of the bottom of the vehicle body, the range extender 3 is kept away from the cab of the car, reducing the noise and vibration transmitted to the cab, effectively improving the NVH performance of the extended-range electric vehicle, and changing the current situation where the range extender 3 of the extended-range vehicle is arranged in the cabin on the front side of the vehicle body. The range extender 3 of the utility model includes an engine 12 and a generator, the engine 12 adopts a self-priming engine, and the generator adopts a permanent magnet synchronous motor.

[0025] The automobile body 1 further includes a drive motor 20, which is mounted on the front side of the battery 4 and drives the front wheels of the automobile body 1 to rotate. The drive motor 20 of the utility model is front-mounted and front-wheel-driven, and the drive motor 20 drives the front wheels of the automobile body 1 to rotate by placing the drive motor 20 in front.

[0026] The rear subframe 2 includes left and right side longitudinal beams 5, a rear cross beam 6 is installed on the rear side between the side longitudinal beams 5, a left suspension assembly 7 is installed on the front side of the left side longitudinal beam 5 of the side longitudinal beams 5, and a right suspension assembly 21 is installed on the front side of the right side longitudinal beam 5 of the side longitudinal beams 5. An intermediate cross beam 8 is also installed in the middle between the side longitudinal beams 5, and a rear suspension assembly 9 is installed on the intermediate cross beam 8. The range extender 3 is installed on the rear subframe 2 through the rear suspension assembly 9, the left suspension assembly 7 and the right suspension assembly 21.

[0027] The rear subframe 2 of the utility model is installed on the floor 19 under the vehicle body, and the range extender 3 is installed on the floor 19 under the vehicle body through the rear subframe 2. The range extender 3 is installed on the rear subframe 2 through the rear suspension assembly 9, the left suspension assembly 7 and the right suspension assembly 21 to realize a three-point suspension structure.

[0028] The right end of the engine 12 on the range extender 3 is connected to the exhaust manifold 13 , and the exhaust manifold 13 is connected to the exhaust pipe 11 . The exhaust pipe 11 is arranged to tilt downward and form a V-shaped structure with the engine 12 .

[0029] The exhaust port 14 of the exhaust pipe 11 is disposed at the rear end of the vehicle body 1 , and the exhaust port 14 of the exhaust pipe 11 is bent downward.

[0030] The utility model arranges the exhaust manifold 13 of the engine 12 at the right end of the engine 12, and the exhaust pipe 11 is arranged downwardly and in a V-shaped structure with the engine 12, which can realize the maximum utilization of the space of the catalyst and make the exhaust side of the engine 12 more compact. In addition, the exhaust pipe 11 is inclined downwardly and in a V-shaped structure with the engine 12, so that the exhaust port 14 is the lowest point of the entire exhaust pipe 11, which can effectively prevent condensed water from accumulating in the exhaust pipe 11.

[0031] The engine 12 is connected to an air filter 15, and an air inlet pipe 10 and an air outlet pipe 16 are provided on the air filter 15. The air filter 15 is connected to the engine 12 through the air outlet pipe 16. An air filter tray 17 is installed on the underfloor 19 of the vehicle body, and the air filter 15 is fixedly installed on the air filter tray 17. The engine 12 is connected to the air inlet pipe 10 through the air filter 15.

[0032] The vehicle body 1 is provided with a fuel tank 18 between the battery 4 and the rear subframe 2 , and the fuel tank 18 is fixed to a vehicle body underfloor 19 of the vehicle body by means of a strap.

Claims

1. An extended-range vehicle with improved working noise, comprising a vehicle body (1), characterized in that: The automobile body (1) comprises a rear subframe (2), a range extender (3) and a battery (4); the range extender (3) is arranged on the rear side of the battery (4), and the range extender (3) is mounted on the rear subframe (2).

2. The extended-range vehicle with improved working noise according to claim 1, characterized in that: The automobile body (1) further comprises a drive motor (20), wherein the drive motor (20) is mounted on the front side of the battery (4), and the drive motor (20) drives the front wheels of the automobile body (1) to rotate.

3. The extended-range vehicle with improved working noise according to claim 1, characterized in that: The rear subframe (2) comprises left and right longitudinal beams (5), a rear cross beam (6) is installed on the rear side between the longitudinal beams (5), a left suspension assembly (7) is installed on the front side of the left longitudinal beam (5) of the two longitudinal beams (5), a right suspension assembly (21) is installed on the front side of the right longitudinal beam (5) of the two longitudinal beams (5), an intermediate cross beam (8) is also installed between the longitudinal beams (5), and a rear suspension assembly (9) is installed on the intermediate cross beam (8), and the range extender (3) is installed on the rear subframe (2) via the rear suspension assembly (9), the left suspension assembly (7) and the right suspension assembly (21).

4. The extended-range vehicle with improved working noise according to claim 1, characterized in that: The right end of the engine (12) on the range extender (3) is connected to an exhaust manifold (13), the exhaust manifold (13) is connected to an exhaust pipe (11), and the exhaust pipe (11) is arranged to be tilted downward and to form a V-shaped structure with the engine (12).

5. The extended-range vehicle with improved working noise according to claim 4, characterized in that: The exhaust port (14) of the exhaust pipe (11) is arranged at the rear end of the automobile body (1), and the exhaust port (14) of the exhaust pipe (11) is bent downward.

6. The extended-range vehicle with improved working noise according to claim 4, characterized in that: The engine (12) is connected to an air filter (15), an air inlet pipe (10) and an air outlet pipe (16) are provided on the air filter (15), the air filter (15) is connected to the engine (12) via the air outlet pipe (16), an air filter tray (17) is installed on the underfloor (19) of the vehicle body, and the air filter (15) is fixedly installed on the air filter tray (17).

7. The extended-range vehicle with improved working noise according to claim 1, characterized in that: The vehicle body (1) is provided with a fuel tank (18) between the battery (4) and the rear subframe (2); the fuel tank (18) is fixed to the underbody floor (19) of the vehicle body by means of a strap.

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