Extended-range all-terrain vehicle

Abstract

The utility model discloses a range-extended all-terrain vehicle, which comprises a frame, a power system for driving the vehicle to run, a power battery, a range extender and a fuel tank, the range extender comprises a range-extended engine and a range-extended generator, the power battery and / or the range-extended engine are / is used for supplying power to the power system, and the range-extended generator is used for supplying power to the power battery. The fuel tank is used for providing fuel for the extended-range engine, the range extender is adopted as a power supplement source, so that the driving quality is close to that of pure electricity, the battery cost is greatly reduced, meanwhile, the problem of mileage anxiety of a pure electric vehicle is solved, the fuel consumption can be greatly reduced compared with a fuel vehicle with the same power, and the practicability is very high for vehicle products with few high-speed working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy all-terrain vehicles, in particular to an extended-range all-terrain vehicle. Background Art

[0002] An all-terrain vehicle is a vehicle that can travel on any terrain and can move freely on terrain where ordinary vehicles have difficulty maneuvering. This type of vehicle has multiple uses and is not restricted by road conditions.

[0003] Traditional fuel vehicles use the engine to convert the heat generated by gasoline combustion into power, which is then transmitted to the wheels through a series of mechanical transmission devices to drive the vehicle. This form of power has the following disadvantages:

[0004] 1. Environmental pollution: Traditional fuel vehicles use gasoline as vehicle power, which produces a large amount of harmful gases when gasoline burns, causing a huge impact on the environment. In addition, fuel vehicles rely on non-renewable energy such as oil. With the gradual depletion of oil resources, energy security has become a highly concerned issue.

[0005] Extended-range vehicles, through efficient energy utilization, can make fuller use of fuel energy during driving, thereby reducing energy consumption and reducing harmful gas emissions.

[0006] 2. Noise pollution: The engine and exhaust system of fuel vehicles will produce noise pollution, which will interfere with the surrounding environment and residents' lives.

[0007] In contrast, the electric motor driven by the extended-range vehicle in pure electric mode makes less noise and is more environmentally friendly. When driving long distances and at high speeds, the engine is in an efficient operating state, which can reduce noise pollution during urban vehicle driving.

[0008] 3. Driving experience: There is a noticeable lag from refueling to vehicle starting in fuel vehicles. When driving, you will clearly feel the gear shifting and engine vibration, and there may even be a gasoline smell, which affects the driving comfort.

[0009] Pure electric vehicles use batteries to provide electricity to drive the motor and achieve vehicle travel. This form of power has the following problems:

[0010] 1. Long energy replenishment time: Pure electric vehicles take a long time to charge, and even with fast charging, it still takes a certain amount of time.

[0011] 2. Greatly affected by temperature: In cold weather conditions, the performance of the battery will decline, resulting in a shorter driving range.

[0012] Therefore, there is an urgent need to design an extended-range all-terrain vehicle that uses a power battery as its power source. When driving, there is no jerkiness or engine vibration when shifting gears in a fuel vehicle. The driving is smooth, the noise is low, and there is no gasoline smell. At the same time, it solves the problems of long energy replenishment time and great temperature influence of pure electric vehicles, and the driving comfort is qualitatively improved. Utility Model Content

[0013] In view of this, the utility model provides an extended-range all-terrain vehicle, which uses a power battery as its power source. When driving, there is no jerking and engine vibration when shifting gears in a fuel vehicle. The driving is smooth, the noise is low, and there is no gasoline smell. At the same time, it solves the problems of long energy replenishment time and great temperature influence of pure electric vehicles, and the driving comfort is qualitatively improved.

[0014] The utility model provides an extended-range all-terrain vehicle that adopts the following technical solutions:

[0015] A range-extended all-terrain vehicle comprises a vehicle frame, a power system for driving the vehicle, a power battery, a range extender and a fuel tank. The range extender comprises a range-extended engine and a range-extended generator. The power battery and / or the range-extended engine are used to power the power system. The range-extended generator is used to power the power battery. The fuel tank is used to provide fuel to the range-extended engine. A charger is provided on the vehicle frame and is used to charge and discharge the power battery.

[0016] Optionally, the power system includes an electric drive and an electric drive controller, the electric drive includes electric drive one and electric drive two, and the electric drive controller includes electric drive controller one for controlling electric drive one and electric drive controller two for controlling electric drive two.

[0017] Optionally, the charger is a water-cooled charger.

[0018] Optionally, a radiator assembly is provided on the frame, and the radiator assembly includes a radiator group and a radiator fan. The radiator fan is used to air-cool the cooling water in the radiator group. The radiator group includes radiator 1 and radiator 2. Radiator 1 is used to water-cool the extended-range engine, and radiator 2 is used to water-cool the electric drive controller 2, electric drive 2, water-cooled charger and extended-range generator.

[0019] Optionally, a cooling water pipe assembly is provided on the vehicle frame, and the cooling water pipe assembly includes a cooling water pipe and an electronic water pump. Cooling water circulates in the cooling water pipe, and the electronic water pump is used to drive the cooling water in the cooling water pipe to flow for water cooling the electric drive 2, electric drive controller 2, water-cooled charger and range-extended generator.

[0020] Optionally, the electronic water pump includes an electronic water pump 1 and an electronic water pump 2 arranged on the vehicle frame, and the cooling water pipe includes a cooling water pipe 1, a cooling water pipe 2 and a cooling water pipe 3. When the internal water temperature of the electric drive and the electric drive controller is preset with a water temperature threshold, the electric drive and the electric drive controller are correspondingly provided with a temperature detection component for detecting the internal water temperature of the electric drive and the electric drive controller. When the internal water temperature of the electric drive controller and / or the water-cooled charger reaches the water temperature threshold, the electronic water pump 1 cools the electric drive controller and the water-cooled charger through cooling water pipe 1; when the internal water temperature of the electric drive 2 reaches the water temperature threshold, the electronic water pump 2 cools the electric drive 2 and the extended-range generator through cooling water pipe 2, and the cooling water pipe 3 is used to cool the extended-range engine.

[0021] Optionally, an on-board charger and an instrument assembly are provided on the vehicle frame. The on-board charger is used to charge the power battery with an external power supply, and the instrument assembly can display the charging status.

[0022] Optionally, the frame has a front compartment and a rear compartment, the range-extended engine is arranged in the rear compartment, the electric drive controller 2 and the water-cooled charger are offset to the rear compartment and on the same side as the power battery and the on-board charger, the electric drive controller 1 is arranged at the upper end of the electric drive 1, and the electric drive 1 and the radiator are arranged in the front compartment.

[0023] Optionally, the vehicle frame includes a seat frame, which is used to install a main driver's seat and a co-pilot seat, the power battery is arranged on the seat frame and is located below the co-pilot seat, and the fuel tank is arranged on the seat frame and is located below the main driver's seat.

[0024] Optionally, a high-voltage wire harness for transmitting current is provided on the vehicle frame, and the high-voltage wire harness includes high-voltage wire harness 1, high-voltage wire harness 2 and high-voltage wire harness 3. The high-voltage wire harness 1 is used to transmit the current output by the power battery to the corresponding electric drive 1 and electric drive 2 through the corresponding electric drive controller 1 and electric drive controller 2 respectively. The high-voltage wire harness 2 is used to transmit the current output by the range extender to the power battery through the DC transformer. The high-voltage wire harness 3 is used to transmit the current output by the on-board charger to the power battery.

[0025] To sum up, the utility model includes at least one of the following beneficial technical effects: using a range extender as a power supplement source to achieve a driving quality close to that of pure electric vehicles, greatly reducing battery costs, and at the same time solving the mileage anxiety of pure electric vehicles. Compared with fuel vehicles with the same power, it can greatly reduce fuel consumption and is very practical for vehicle products with fewer high-speed operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0027] Figure 2 It is a top view of an embodiment of the utility model;

[0028] Figure 3 It is a side view of an embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the high-voltage wire harness connection structure of an embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the power battery structure of an embodiment of the utility model;

[0031] Figure 6 This is a schematic diagram of the frame arrangement structure of an embodiment of the utility model;

[0032] Figure 7 It is a partial enlarged view of an embodiment of the present utility model.

[0033] Explanation of the accompanying drawings: 1. Instrument assembly; 2. Front electric drive controller; 3. Radiator assembly; 31. Radiator 1; 32. Radiator 2; 33. Radiator fan; 4. Vehicle controller; 5. Front electric drive; 6. Cooling water pipe assembly; 61. Cooling water pipe 1; 62. Cooling water pipe 2; 63. Cooling water pipe 3; 7. Power battery; 8. On-board charger; 9. Electronic water pump; 10. Water-cooled charger; 11. Rear electric drive; 12. Rear electric drive controller; 13. Exhaust system; 14. Range extender; 15. Intake system; 16. Fuel tank; 17. High-voltage wiring harness. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 The utility model is described in further detail.

[0035] The embodiment of the utility model discloses an extended-range all-terrain vehicle.

[0036] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 A range-extended all-terrain vehicle includes a frame, a power system for driving the vehicle, a power battery 7, a range extender 14 and a fuel tank 16. The range extender 14 includes a range-extended engine and a range-extended generator. The power battery 7 and / or the range-extended engine are used to power the power system, the range-extended generator is used to power the power battery 7, and the fuel tank 16 is used to provide fuel to the range-extended engine. The range extender 14 is used as a power supplement source to achieve a driving quality close to that of pure electric vehicles, significantly reduce battery costs, and solve the mileage anxiety of pure electric vehicles. Compared with fuel vehicles with the same power, it can significantly reduce fuel consumption. For vehicle products with fewer high-speed operating conditions, it is very practical.

[0037] In this embodiment, the vehicle frame integrates the range extender 14, the power battery 7 and the fuel tank 16. Through the reasonable zoning design of the vehicle, the vehicle structure, the arrangement of the range extender 14, the power battery 7 and the fuel tank 16 are completed, and the development of the extended-range vehicle and the verification of the extended-range control functions are realized, so as to achieve the goals of low pollution, low noise, high efficiency and excellent driving experience.

[0038] The vehicle frame is equipped with an onboard charger 8 and an instrument assembly 1. The onboard charger 8 is used to charge the power battery 7 from an external power source, and the instrument assembly 1 can display the charging status. When charging at a charging station is needed, the onboard charger 8 can be connected to 220V household voltage or 360V charging station voltage to charge the power battery 7.

[0039] In this embodiment, the power system includes an electric drive and an electric drive controller, wherein the electric drive includes electric drive 1 and electric drive 2, and the electric drive controller includes electric drive controller 1 for controlling electric drive 1 and electric drive controller 2 for controlling electric drive 2.

[0040] Electric drive one is the front electric drive 5, electric drive controller one is the front electric drive controller one 2, electric drive two is the rear electric drive 11, electric drive controller two is the rear electric drive controller 12, the front electric drive controller 2 is used to control the front electric drive 5, the rear electric drive controller 12 is used to control the rear electric drive 11, the front electric drive 5 is used to transmit power to the front wheels, and the rear electric drive 11 is used to transmit power to the rear wheels. When the driver steps on the accelerator, the vehicle controller 4 sends an instruction, and the power battery 7 drives the front electric drive 5 through the front electric drive controller 2, and drives the rear electric drive 11 through the rear electric drive controller 12, driving the vehicle to run normally, and the vehicle driving related parameters can be observed on the instrument assembly 1.

[0041] The vehicle frame includes a seat frame for mounting the driver's seat and the passenger seat. A power battery 7 is located within the seat frame, beneath the passenger seat. A fuel tank 16 is also located within the seat frame, beneath the driver's seat. This structure creates a compact vehicle layout, utilizing the space beneath the seats for the fuel tank 16 and power battery 7. This maximizes vehicle space utilization and maintains overall dimensions consistent with those of a fuel-powered vehicle.

[0042] A high-voltage wire harness 17 for transmitting current is provided on the vehicle frame. The high-voltage wire harness 17 includes a high-voltage wire harness 17 1, a high-voltage wire harness 17 2 and a high-voltage wire harness 17 3. The high-voltage wire harness 17 1 is used to transmit the current output by the power battery 7 to the corresponding front electric drive 5 and the rear electric drive 11 through the corresponding front electric drive controller 2 and the rear electric drive controller 12 respectively. The high-voltage wire harness 17 2 is used to transmit the current output by the range extender 14 to the power battery 7 through the DC transformer. The high-voltage wire harness 17 3 is used to transmit the current output by the on-board charger 8 to the power battery 7. Through the above connection method, the high-voltage wiring harness 17 is divided into three parts. The first part is connected from the power battery 7 and enters the front drive controller and the rear electric drive controller 12 respectively, is connected from the front electric drive controller 2, enters the front electric drive 5, and is connected from the rear electric drive controller 12 to enter the rear electric drive 11, driving the transmission current for the front electric drive 5 and the rear electric drive 11; the second part is connected from the range extender 14, enters the DC transformer, and enters the power battery 7 to transmit current for charging in the extended range mode; the third part is connected from the on-board charger 8, enters the power battery 7, and transmits current for charging in the external power supply mode.

[0043] A water-cooled charger 10 is provided on the vehicle frame. The water-cooled charger 10 is used to charge and discharge the power battery 7. The water-cooled charger 10 can also effectively cool down the battery during the charging process.

[0044] A radiator assembly 3 is provided on the frame, and the radiator assembly 3 includes a radiator group and a radiator fan 33. The radiator group includes radiator 1 31 and radiator 2 32. The radiator fan 33 is used to cool the radiator group. The size of radiator 1 31 is larger than that of radiator 2 32. Radiator 1 31 and radiator 2 32 are spaced apart along the length direction of the frame. Radiator 1 31 is used to water-cool the range-extended engine, and radiator 2 32 is used to water-cool the rear electric drive controller 12, the rear electric drive 11, the water-cooled charger 10 and the range-extended generator.

[0045] A cooling water pipe assembly 6 is provided on the vehicle frame. The cooling water pipe assembly 6 includes a cooling water pipe, a return water pipe and an electronic water pump 9. Cooling water circulates in the cooling water pipe. The electronic water pump 9 is used to drive the cooling water in the cooling water pipe to flow for water cooling the rear electric drive 11, the rear electric drive controller 12, the water-cooled charger 10, the extended-range engine and the extended-range generator.

[0046] The electronic water pump 9 includes an electronic water pump 91 and an electronic water pump 92 which are arranged on the vehicle frame. The electronic water pump 91 and the electronic water pump 92 are arranged side by side on the vehicle frame. The cooling water pipe includes a cooling water pipe 1 61, a cooling water pipe 2 62 and a cooling water pipe 63. The internal pipes of the rear electric drive 11 and the rear electric drive controller 12 are preset with a water temperature threshold. The rear electric drive 11 and the rear electric drive controller 12 are respectively provided with a temperature detection component for detecting the internal water temperature of the rear electric drive 11 and the rear electric drive controller 12. When the internal water temperature of the rear electric drive 11 reaches the water temperature threshold, the electronic water pump 91 cools the rear electric drive controller 12 and the water-cooled charger 10 through the cooling water pipe 1 61; at the same time, the radiator fan 33 The cooling water inside the radiator group is started to cool down. When the water temperature inside the rear electric drive 11 reaches the water temperature threshold, the electronic water pump 92 will cool the rear electric drive 11 and the extended-range generator through the cooling water pipe 2 62. At the same time, the radiator fan 33 is started to cool down the cooling water inside the radiator group. When the water temperature inside the rear electric drive controller 12 reaches the preset value, the electronic water pump 91 and the radiator fan 33 are started, and the cooling water circulates through the cooling water pipe assembly 6 to cool the rear electric drive controller 12 and the water-cooled charger 10. When the internal water temperature of the rear electric drive 11 reaches a preset value, the electronic water pump 92 and the radiator fan 33 are started, and the cooling water circulates through the cooling water pipe assembly 6 to cool the rear electric drive 11 and the range-extended generator, while the cooling water of the cooling water pipe three 63 relies on the water pump of the range-extended engine to circulate. When the vehicle is driving and the power battery level is lower than the preset value, the range extender 14 is started, and the cooling water pipe three 63 uses the water pump of the range-extended engine to cool the range-extended engine. At the same time, the radiator fan 33 is started to cool the cooling water inside the radiator group; when the power battery level reaches the preset value, the range extender is shut down, the water pump of the range-extended engine no longer works, and the water cycle ends.

[0047] The vehicle frame has a front compartment and a rear compartment, the range-extended engine is arranged in the rear compartment, the front electric drive controller 2 is arranged at the upper end of the front electric drive 5, the front electric drive 5 and the radiator group are arranged in the front compartment, the rear electric drive 11 is arranged behind the rear compartment, the rear electric drive controller 12 and the water-cooled charger 10 are offset to the rear compartment and on the same side as the power battery 7 and the on-board charger 8. Specifically, the range-extended engine is arranged at the front of the rear compartment, the front electric drive controller 2 is arranged at the upper end of the front electric drive 5, the front electric drive 5 and the radiator group are arranged in the front compartment, and the rear electric drive controller 12 and the water-cooled charger 10 are arranged on the right side of the rear compartment, on the same side as the power battery 7 and the charging port, shortening the length of the high-voltage wiring harness 17 from the on-board charger 8 to the water-cooled charger 10, and from the water-cooled charger 10 to the power battery 7, shortening the length of the high-voltage wiring harness 17 from the rear electric drive controller 12 to the range-extended engine, and shortening the length of the high-voltage wiring harness 17 from the front electric drive controller 2 to the front electric drive 5. The high-voltage wiring harness 17 in the rear compartment is all arranged on the right side for easy assembly and subsequent maintenance.

[0048] The above arrangement evenly distributes the weight of the vehicle on the frame, effectively balancing the load on the front and rear axles of the vehicle, reducing the vibration and noise of the vehicle during driving, and improving the driving stability and driving comfort of the vehicle.

[0049] In this embodiment, a vehicle controller 4 is installed on the frame for controlling the vehicle, and an ECU in the existing technology can be used. In this embodiment, the vehicle controller 4 is preset with a power threshold of the power battery 7. When the power of the power battery 7 is lower than the preset power threshold, the range extender 14 is controlled to start, and the electronic oil pump in the fuel tank 16 is used to deliver gasoline to the range-extended engine. The vehicle's intake system 15 takes in air, exhausts and silences the vehicle, and the electric energy generated by the range-extended generator is delivered to the power battery 7, that is, to charge the power battery 7. When the power of the power battery 7 reaches the preset power threshold, the range extender 14 is controlled to shut down.

[0050] The extended-range full-underground city vehicle of the utility model takes into account structural compactness, driving stability, driving comfort, cost, NVH, heat dissipation and lightweight.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An extended-range all-terrain vehicle, characterized by: It includes a vehicle frame, a power system for driving the vehicle, a power battery, a range extender and a fuel tank. The range extender includes a range-extending engine and a range-extending generator. The power battery and / or the range-extending engine are used to power the power system. The range-extending generator is used to power the power battery. The fuel tank is used to provide fuel to the range-extending engine. A charger is provided on the vehicle frame. The charger is used to charge and discharge the power battery.

2. The extended-range all-terrain vehicle according to claim 1, characterized in that: The power system includes an electric drive and an electric drive controller, the electric drive includes electric drive 1 and electric drive 2, and the electric drive controller includes electric drive controller 1 for controlling electric drive 1 and electric drive controller 2 for controlling electric drive 2.

3. The extended-range all-terrain vehicle according to claim 2, characterized in that: The charger is a water-cooled charger.

4. The extended-range all-terrain vehicle according to claim 3, characterized in that: A radiator assembly is provided on the frame, and the radiator assembly includes a radiator group and a radiator fan. The radiator fan is used to cool the cooling water in the radiator group. The radiator group includes radiator 1 and radiator 2. Radiator 1 is used to water-cool the extended-range engine, and radiator 2 is used to water-cool the electric drive controller 2, electric drive 2, water-cooled charger and extended-range generator.

5. The extended-range all-terrain vehicle according to claim 3, characterized in that: A cooling water pipe assembly is provided on the vehicle frame, and the cooling water pipe assembly includes a cooling water pipe and an electronic water pump. Cooling water circulates in the cooling water pipe, and the electronic water pump is used to drive the cooling water in the cooling water pipe to flow for water cooling the electric drive, electric drive controller, water-cooled charger and range-extended generator.

6. The extended-range all-terrain vehicle according to claim 5, characterized in that: The electronic water pump includes an electronic water pump 1 and an electronic water pump 2 arranged on the vehicle frame, and the cooling water pipe includes a cooling water pipe 1, a cooling water pipe 2 and a cooling water pipe 3. When the internal water temperature of the electric drive and the electric drive controller is preset with a water temperature threshold, the electric drive and the electric drive controller are correspondingly provided with a temperature detection component for detecting the internal water temperature of the electric drive and the electric drive controller. When the internal water temperature of the electric drive controller and / or the water-cooled charger reaches the water temperature threshold, the electronic water pump 1 cools the electric drive controller and the water-cooled charger through the cooling water pipe 1; when the internal water temperature of the electric drive 2 reaches the water temperature threshold, the electronic water pump 2 cools the electric drive 2 and the extended-range generator through the cooling water pipe 2, and the cooling water pipe 3 is used to cool the extended-range engine.

7. The extended-range all-terrain vehicle according to claim 6, characterized in that: The frame is provided with an on-board charger and an instrument assembly. The on-board charger is used to charge the power battery with an external power supply, and the instrument assembly can display the charging status.

8. The extended-range all-terrain vehicle according to claim 7, characterized in that: The vehicle frame has a front compartment and a rear compartment, the range-extended engine is arranged in the rear compartment, the electric drive controller 2 and the water-cooled charger are offset to the rear compartment and on the same side as the power battery and the on-board charger, the electric drive controller 1 is arranged at the upper end of the electric drive 1, and the electric drive 1 and the radiator are arranged in the front compartment.

9. The extended-range all-terrain vehicle according to claim 1, characterized in that: The vehicle frame includes a seat frame, which is used to install a main driver's seat and a co-pilot seat. The power battery is arranged on the seat frame and is located below the co-pilot seat. The fuel tank is arranged on the seat frame and is located below the main driver's seat.

10. The extended-range all-terrain vehicle according to claim 2, characterized in that: The frame is provided with a high-voltage wire harness for transmitting current, and the high-voltage wire harness includes high-voltage wire harness 1, high-voltage wire harness 2 and high-voltage wire harness 3. The high-voltage wire harness 1 is used to transmit the current output by the power battery to the corresponding electric drive 1 and electric drive 2 through the corresponding electric drive controller 1 and electric drive controller 2 respectively. The high-voltage wire harness 2 is used to transmit the current output by the range extender to the power battery through the DC transformer. The high-voltage wire harness 3 is used to transmit the current output by the vehicle charger to the power battery.

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