Plug-in type extended-range middle bus structure based on fuel vehicle type and middle bus

Abstract

The utility model provides a plug-in type extended-range middle bus structure based on a fuel oil vehicle type and a middle bus, and the plug-in type extended-range middle bus structure based on the fuel oil vehicle type comprises a power assembly which comprises an engine, a motor and a motor integrated speed reducer, the power assembly is mounted on a frame of the middle bus; the high-voltage system comprises a power battery and an inverter, the power battery is hung below the frame, and the inverter is arranged above the motor. According to the plug-in type range-extending middle bus structure based on the fuel vehicle type and the middle bus, the problem of how to change the fuel vehicle type into the plug-in type range-extending middle bus can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of medium-sized buses, and in particular to a structure and a medium-sized bus of a plug-in extended-range medium-sized bus based on a fuel vehicle model. Background Art

[0002] In recent years, the rapid development of new energy vehicles has become an important trend in the global automotive industry. Thanks to continuous technological progress and the continuous growth of market demand, the new energy vehicle market has shown explosive growth. At the same time, technological progress has promoted the reduction of battery performance and cost, making new energy vehicles more competitive in terms of driving range and cost performance. As a type of new energy vehicle, the plug-in extended-range electric vehicle (REEV) combines the advantages of pure electric vehicles and traditional fuel vehicles, effectively alleviating consumers' range anxiety.

[0003] In the field of medium-sized buses, fuel vehicles still occupy a large market at present, but the rapidly developing plug-in extended-range medium-sized buses are expected to become the future dominant. To enable products to quickly enter the market and occupy the market share, the development cycle becomes the top priority. If it is possible to convert a fuel vehicle model into a plug-in extended-range medium-sized bus, the development can be quickly completed and the market can be occupied on the premise of reducing costs. Summary of the Utility Model

[0004] In view of this, the purpose of the present application is to provide a structure and a medium-sized bus of a plug-in extended-range medium-sized bus based on a fuel vehicle model, so as to solve the problem of how to convert a fuel vehicle model into a plug-in extended-range medium-sized bus.

[0005] According to the first aspect of the present utility model, there is provided a structure of a plug-in extended-range medium-sized bus based on a fuel vehicle model, wherein the structure of the plug-in extended-range medium-sized bus based on a fuel vehicle model includes: a power assembly, including an engine, a motor, and a motor integrated reducer, and the power assembly is installed on the frame of the medium-sized bus; and a high-voltage system, including a power battery and an inverter, the power battery is suspended below the frame, and the inverter is arranged above the motor.

[0006] Preferably, the high-voltage system further includes: a DC-DC converter, arranged below the floor of the medium-sized bus; a high-voltage distribution box, arranged inside the frame; and a charging socket, arranged on the right rear body side wall of the medium-sized bus.

[0007] Preferably, the structure of the plug-in extended-range medium-sized bus based on a fuel vehicle model further includes a cooling system, and the cooling system includes: a water heater, arranged on the side of the power battery for heating the power battery; and a cooling module, arranged in front of the engine, and the cooling module is connected to the motor, the power battery, and the DC-DC converter through cooling pipelines.

[0008] Preferably, the engine is installed at the front end of the vehicle frame, and the motor integrated reducer and the motor are arranged at the rear of the engine.

[0009] Preferably, the setting position of the power battery is higher than the front cross beam of the vehicle frame.

[0010] Preferably, the inverter is arranged at the rear side part of the engine compartment maintenance cover of the medium-sized bus.

[0011] Preferably, the plug-in range-extended medium-sized bus structure based on the fuel vehicle type further includes an air-conditioning system, and the air-conditioning system includes: an electric compressor installed on the power assembly; a condenser arranged at the rear end of the medium-sized bus; and an air-conditioning pipeline connected to the electric compressor and the condenser.

[0012] Preferably, the plug-in range-extended medium-sized bus structure based on the fuel vehicle type further includes a storage battery, and the storage battery is arranged outside the vehicle frame.

[0013] Preferably, the plug-in range-extended medium-sized bus structure based on the fuel vehicle type further includes an exhaust system, and the exhaust system is arranged at the side part of the power battery in the vehicle width direction.

[0014] According to a second aspect of the present invention, there is provided a medium-sized bus, wherein the medium-sized bus includes the plug-in range-extended medium-sized bus structure based on the fuel vehicle type as described above.

[0015] The plug-in range-extended medium-sized bus structure and the medium-sized bus according to the embodiments of the present invention, the power assembly of which includes an engine, a motor and a motor integrated reducer. The power assembly is installed on the vehicle frame of the medium-sized bus. The high-voltage system includes a power battery and an inverter. The power battery is suspended below the vehicle frame, and the inverter is arranged above the motor. The plug-in range-extended medium-sized bus structure based on the fuel vehicle type adds a pure electric vehicle type design on the mature platform of the original fuel vehicle type, and can quickly dispatch vehicles to seize the market. In terms of cost, the appearance and interior design of the original fuel vehicle type can be retained to minimize the degree of modification. In this way, the problem of how to convert a fuel vehicle type into a plug-in range-extended medium-sized bus can be effectively solved.

[0016] To make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the structure of a plug-in extended-range medium-sized bus based on a fuel vehicle type according to the present utility model.

[0019] Reference numerals: 1 - engine; 2 - motor integrated reducer; 3 - mount; 4 - transmission system; 5 - intake system; 6 - fuel supply system; 7 - high-pressure fuel tank; 8 - exhaust system; 9 - vehicle frame; 10 - electric compressor; 11 - condenser; 12 - air-conditioning pipeline; 13 - water heating heater; 14 - cooling module; 15 - cooling pipeline; 16 - wiring harness; 17 - power battery; 18 - high-voltage wiring harness; 19 - storage battery. Detailed embodiments

[0020] The following detailed embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent. For example, the order of operations described herein is merely exemplary and is not limited to the order set forth herein. Rather, changes that will be apparent after understanding the disclosure of the present application can be made, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

[0021] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0022] Throughout the specification, when an element, such as a layer, region, or substrate, is described as being "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, it can be directly "on" the other element, "connected to" the other element, "coupled to" the other element, "above" the other element, or "covering" the other element, or there can be one or more other elements intervening therebetween. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly coupled to" another element, "directly above" another element, or "directly covering" another element, there can be no other elements intervening therebetween.

[0023] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0024] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, the first component, element, region, layer, or part described in the examples herein may also be referred to as the second component, element, region, layer, or part without departing from the teachings of the examples.

[0025] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly.

[0026] The terms used herein are for describing various examples only and are not intended to limit the examples. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including" and "having" enumerate the stated features, quantities, operations, components, elements and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0027] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.

[0028] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of this application. In addition, although the examples described herein have various configurations, other configurations are possible, as will be apparent after understanding the disclosure of this application.

[0029] As Figure 1 shown, according to a first aspect of the present utility model, there is provided a plug-in range-extended medium bus structure based on a fuel vehicle model. The plug-in range-extended medium bus structure based on the fuel vehicle model includes a power assembly and a high-voltage system.

[0030] In the following description, reference will be made to Figure 1 specifically describe the specific structures of the above components of the plug-in range-extended medium bus structure based on the fuel vehicle model and the connection relationships of the above components.

[0031] As Figure 1 shown, in an embodiment, its power assembly may include an engine 1, a motor and a motor integrated reducer 2 to replace the transmission of the original fuel vehicle model. The power assembly may be installed on the frame 9 of the medium bus. The high-voltage system may include a power battery 17 and an inverter (not shown). Among them, the power battery 17 may be suspended below the frame 9, and the inverter may be disposed above the motor. The plug-in range-extended medium bus structure based on the fuel vehicle model adds a pure electric vehicle model design on the mature platform of the original fuel vehicle model, and can realize rapid vehicle dispatch to seize the market. In terms of cost, the appearance and interior design of the original fuel vehicle model can be retained to minimize the degree of modification.

[0032] Preferably, as Figure 1 shown, in an embodiment, the engine 1 may be installed at the front end of the frame 9 (for ease of description, taking Figure 1 the upward direction shown in Figure 1(The downward direction shown in the figure is the rear), the motor and the motor integrated reducer 2 can be arranged at the rear side of the engine 1. The generator, the drive motor and the motor integrated reducer 2 can be installed on the vehicle frame 9. Specifically, the engine 1 can directly use the engine of the original fuel vehicle model, and the engine 1, the motor and the motor integrated reducer 2 can be installed at the position of the transmission of the original fuel vehicle model.

[0033] Preferably, as Figure 1 shown, in the embodiment, compared with the fuel vehicle model, the plug-in extended-range medium bus structure based on the fuel vehicle model newly adds the high-voltage system. In the high-voltage system, since the volume of the power battery 17 is relatively large, the power battery 17 can be suspended below the vehicle frame 9 (for ease of description, the downward direction in the normal driving state of the vehicle is the lower side, and the upward direction in the normal driving state of the vehicle is the upper side). Preferably, the installation position of the power battery 17 can be higher than the front cross beam of the vehicle frame 9 to prevent the bottom surface of the power battery 17 from rubbing against the road surface. The inverter can cooperate with the motor. The inverter can be arranged on the rear side of the engine compartment maintenance cover of the medium bus, and is located above the motor at the same time.

[0034] More preferably, as Figure 1 shown, in the embodiment, the high-voltage system can further include a DC-DC converter (DCDC converter), a high-voltage distribution box and a charging socket. Among them, the DC-DC converter (not shown) can be arranged below the floor of the medium bus and is located above the power battery 17. The high-voltage distribution box (not shown) can be arranged inside the vehicle frame 9 for easy assembly. The charging socket (not shown) can be arranged on the body side wall at the right rear of the medium bus (i.e., the right rear in the normal driving state of the vehicle) to facilitate charging of the power battery 17. In addition, the high-voltage system can also be provided with high-voltage wiring harness 18 according to the positions of each component.

[0035] Preferably, as Figure 1As shown, in the embodiment, the structure of the plug-in range-extended medium bus based on a fuel vehicle type may further include a cooling system. The cooling system may include a water heater 13 and a cooling module 14. Among them, the water heater 13 may be a high-pressure water heater. Since the engine 1 of the plug-in range-extended vehicle type has a working characteristic (i.e., it works when the power battery 17 has a low power), and thus cannot provide a heat source, a water heater 13 may be equipped for heating and heating the power battery 17 in winter. In addition, since the structure of the plug-in range-extended medium bus based on the fuel vehicle type has added components such as a motor, a DC-DC converter, and a power battery 17 compared with the fuel vehicle, the cooling system is required to cool the equipment. The cooling module 14 of the cooling system may adopt the cooling module of the original fuel vehicle type. The cooling module 14 may be arranged at the front of the engine 1. The cooling module 14 may be connected to the motor, the power battery 17, the PTC of the medium bus, and the DC-DC converter through a cooling pipeline 15. The cooling pipeline 15 may adaptively adjust its direction according to the actual arrangement positions of the above-mentioned equipment.

[0036] Preferably, as Figure 1 shown, in the embodiment, the structure of the plug-in range-extended medium bus based on the fuel vehicle type may further include power accessories. The power accessories may include a mount 3, a transmission system 4, an intake system 5, a fuel supply system 6, and an exhaust system 8. Among them, since the overall arrangement of the powertrain is the same as that of the fuel vehicle type, both the mount 3 and the transmission system 4 may adopt the configurations of the original fuel vehicle type. In addition, since the engine 1 remains unchanged, the intake system 5 and the fuel supply system 6 may also be the same as those of the original fuel vehicle type. The fuel tank may be changed to a high-pressure fuel tank 7 according to the requirements of the whole vehicle. The high-pressure fuel tank 7 may be installed at the rear end of the vehicle frame 9, and the layout boundary of the high-pressure fuel tank 7 may be the same as that of the fuel tank of the original fuel vehicle type. The exhaust system 8 may be changed to be arranged at the side of the power battery 17 in the vehicle width direction (which may be the right side of the power battery 17 as Figure 1 shown).

[0037] Preferably, as Figure 1As shown, in the embodiment, the structure of the plug-in range-extended medium bus based on a fuel vehicle type may further include an air conditioning system. The air conditioning system may include an electric compressor 10, a condenser 11, and an air conditioning pipeline 12. Since the compressor of the original fuel vehicle type is driven by a pulley by the engine, and in the structure of the plug-in range-extended medium bus based on a fuel vehicle type, the engine 1 only works when the power of the power battery 17 is relatively low, the air conditioning system may be set as the electric compressor 10. The electric compressor 10 may be powered by the high-voltage system to ensure that it can work at any time. Preferably, the electric compressor 10 may be installed on the power assembly. Since the electric compressor 10 is a vibrating component, the vibration can be dampened by means of the mount 3 of the power assembly. The condenser 11 may be arranged at the right rear end of the medium bus (i.e., the right rear side in the normal driving state of the vehicle). The air conditioning pipeline 12 may be connected to the electric compressor 10 and the condenser 11, and the installation position of the air conditioning pipeline 12 may be adjusted adaptively according to the installation positions of the electric compressor 10 and the condenser 11.

[0038] In addition, preferably, as Figure 1 shown, in the embodiment, in the structure of the plug-in range-extended medium bus based on a fuel vehicle type, the settings of systems such as the front and rear suspensions, braking, and steering may be the same as those of the original fuel vehicle type. The installation position of the wiring harness 16 may be adjusted adaptively according to electrical devices such as the motor, the electric compressor 10, the power battery 17, the PTC, and the DC-DC converter. The vehicle frame 9 may be provided with fixing points according to the specific positions of pipelines such as the wiring harness 16, the air conditioning pipeline 12, and the cooling pipeline 15.

[0039] Preferably, the structure of the plug-in range-extended medium bus based on a fuel vehicle type may further include a storage battery 19. Specifically, compared with the original fuel vehicle type, the structure of the plug-in range-extended medium bus based on a fuel vehicle type may be additionally provided with two storage batteries 19 to ensure the endurance of the vehicle. The storage battery 19 may be arranged outside the vehicle frame 9 (it may be the left side as shown in Figure 1 ).

[0040] In addition, according to the second aspect of the present invention, a medium bus is provided, and the medium bus includes the structure of the plug-in range-extended medium bus based on a fuel vehicle type as described above.

[0041] During the implementation process, the positions on the vehicle body side panels where holes need to be drilled can be determined first to arrange the charging sockets. At the same time, the changes to the instrument panel area, gateway and other controllers in the front of the vehicle are determined, and the relevant controller brackets are changed adaptively. Then, layout analysis is carried out on the fuel vehicle model, and the components that are not required for the plug-in range-extended vehicle model are sorted out, such as the transmission, air conditioning system, cooling system, etc. And the components that need to be added for the plug-in range-extended vehicle model are sorted out for the initial layout. Then, in combination with the working principle of the system, the powertrain and each system are finely arranged, and according to the layout of each system, the fixing points of the body and frame 9 of the original fuel vehicle model are changed adaptively. Finally, the overall vehicle layout is merged to complete the vehicle model change.

[0042] The medium-sized bus has a non-load-bearing body and is equipped with a frame 9. Such a setting can achieve the adaptive change of the frame 9 and reduce the cost investment. In terms of interior decoration, the interior of the original fuel vehicle model can be completely borrowed, further reducing the development cost. In terms of stability, since it is designed based on the mature platform of the fuel vehicle model, and the mechanical structure, safety, etc. of the fuel vehicle model have been tested by the market and time, and then equipped with a professional and mature electric platform, the stability can also meet the usage requirements. In terms of the development cycle, the area above the floor can borrow the design of the original fuel vehicle model and new sensors and charging ports are added. The area below the floor adopts the structure of the plug-in range-extended medium-sized bus based on the fuel vehicle model, so that the overall development cycle is greatly shortened compared with the new development, thus realizing a quick market launch.

[0043] Finally, it should be noted that the above embodiments are only specific implementation manners of the present application, used to illustrate the technical solutions of the present application, rather than limiting them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A structure of a plug-in extended-range medium bus based on a fuel vehicle type, which is arranged on a medium bus, and is characterized in that, The structure of the plug-in range-extended medium bus based on a fuel vehicle type includes: A powertrain, including an engine, a motor, and a motor integrated reducer, where the powertrain is installed on the frame of the medium bus; and A high-voltage system, including a power battery and an inverter, where the power battery is suspended below the frame, and the inverter is arranged above the motor.

2. The structure of the plug-in range-extended medium-sized bus based on a fuel vehicle type according to claim 1, characterized in that, The high-voltage system further includes: A DC-DC converter, arranged below the floor of the medium bus; A high-voltage distribution box, arranged inside the frame; and A charging socket, arranged on the right rear body side panel of the medium bus.

3. The structure of the plug-in range-extended medium bus based on a fuel vehicle type according to claim 2, wherein The structure of the plug-in range-extended medium bus based on a fuel vehicle type further includes a cooling system, and the cooling system includes: A water heater, arranged on the side of the power battery, for heating the power battery; and A cooling module, arranged at the front of the engine, and the cooling module is connected to the motor, the power battery, and the DC-DC converter through cooling pipelines.

4. The structure of the plug-in range-extended medium-sized bus based on a fuel vehicle type according to claim 1, characterized in that, The engine is installed at the front end of the frame, and the motor integrated reducer and the motor are arranged at the rear of the engine.

5. The structure of the plug-in range-extended medium-sized bus based on a fuel vehicle type according to claim 1, characterized in that, The installation position of the power battery is higher than the front crossbeam of the frame.

6. The structure of the plug-in range-extended medium bus based on a fuel vehicle type according to claim 1, wherein The inverter is arranged at the rear side part of the engine compartment maintenance hatch of the medium bus.

7. The structure of the plug-in range-extended medium-sized bus based on a fuel vehicle model according to claim 1, characterized in that, The structure of the plug-in range-extended medium bus based on a fuel vehicle type further includes an air-conditioning system, and the air-conditioning system includes: An electric compressor, installed on the powertrain; A condenser, arranged at the rear end of the medium bus; and Air-conditioning pipelines, connected to the electric compressor and the condenser.

8. The structure of the plug-in range-extended medium bus based on a fuel vehicle type according to claim 1, wherein The structure of the plug-in range-extended medium bus based on a fuel vehicle type further includes a storage battery, and the storage battery is arranged outside the frame.

9. The structure of the plug-in range-extended medium bus based on a fuel vehicle type according to claim 1, characterized in that, The structure of the plug-in range-extended medium bus based on a fuel vehicle type further includes an exhaust system, and the exhaust system is arranged on the side of the power battery in the vehicle width direction.

10. A minibus, characterized in that, The medium bus includes the structure of the plug-in range-extended medium bus based on a fuel vehicle type according to any one of claims 1 to 9.

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