Thermal management system and hybrid vehicle with same

Abstract

The invention provides a heat management system and a hybrid power vehicle with the heat management system, the heat management system is applied to the hybrid power vehicle, and the heat management system comprises a fuel oil heating pipeline used for heating fuel oil in a fuel oil tank; the battery circulating pipeline is used for exchanging heat with the battery, and the battery circulating pipeline can be connected with the fuel oil heating pipeline in series so as to transfer heat generated by the battery to the fuel oil tank and heat the fuel oil, so that the fuel oil can be sprayed in a flash boiling manner. According to the technical scheme, the problem that in the prior art, the cost is high due to the fact that a heater is additionally arranged on a fuel oil pipeline to achieve flash boiling injection of fuel oil can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a thermal management system and a hybrid vehicle having the same. Background Technology

[0002] With the rapid development of the global economy, green energy resources are becoming increasingly scarce. Countries are formulating effective measures to achieve carbon neutrality, and vigorously developing new energy vehicles (including hybrid vehicles) has become one of the important means to save energy and achieve carbon neutrality.

[0003] Hybrid electric vehicles (HEVs) are a type of new energy vehicle, and all HEVs are equipped with engines. Fuel flash boiling injection is a fuel injection technology that enhances atomization by rapidly boiling high-temperature fuel in a low-pressure environment. It is mainly used in automotive engines and other fields. This technology is divided into two categories: superheated flash boiling and depressurized flash boiling. It utilizes the bubbles generated by fuel phase change to promote droplet breakage, resulting in characteristics such as shortening the penetration distance, increasing the spray cone angle, and reducing the Sauter mean diameter, thus optimizing fuel-air mixing and improving combustion efficiency.

[0004] Currently, in order to achieve fuel flash injection, a heater is usually installed in the fuel line to heat the fuel, which results in higher costs. Summary of the Invention

[0005] The main objective of this invention is to provide a thermal management system and a hybrid vehicle having the same, in order to solve the problem of high cost caused by adding a heater to the fuel line to achieve fuel flash-boil injection in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a thermal management system is provided for use in a hybrid vehicle. The thermal management system includes: a fuel heating line for heating fuel in a fuel tank; and a battery circulation line for exchanging heat with a battery. The battery circulation line is connected in series with the fuel heating line to transfer the heat generated by the battery to the fuel tank and heat the fuel, thereby enabling the fuel to be injected through a flash boiling process.

[0007] Furthermore, the thermal management system also includes an electronically controlled circulation pipeline, which is used to exchange heat with the electronic control device. The electronically controlled circulation pipeline can be connected in series with the fuel heating pipeline to transfer the heat generated by the electronic control device to the fuel tank and heat the fuel, so that the fuel can be injected with a flash boiling effect.

[0008] Furthermore, the thermal management system also includes a first switching component disposed between the battery circulation pipeline and the electronic control circulation pipeline. The first switching component has a first working state and a second working state. In the first working state, the battery circulation pipeline and the electronic control circulation pipeline are independent of each other. In the second working state, the battery circulation pipeline and the electronic control circulation pipeline are connected in series to transfer the heat generated by the battery and the electronic control device to the fuel tank and heat the fuel, so that the fuel can be injected by flash boiling.

[0009] Furthermore, the electronically controlled circulation pipeline includes an electronically controlled heat exchange section and an electronically controlled heat dissipation section. The electronic control device is installed on the electronically controlled heat exchange section, and a first radiator is installed on the electronically controlled heat dissipation section. The fuel heating pipeline and the electronically controlled heat dissipation section are connected in parallel, and one of them is connected to the electronically controlled heat exchange section.

[0010] Furthermore, the thermal management system also includes a bypass pipeline, wherein the bypass pipeline, fuel heating pipeline and electrically controlled heat dissipation pipeline are connected in parallel and one of them is connected to the electrically controlled heat exchange pipeline.

[0011] Furthermore, a second switching element is provided at the connection between the electrically controlled heat exchanger section and the electrically controlled heat dissipation section. One end of the bypass pipe is connected to the second switching element. The second switching element has a third operating state and a fourth operating state. In the third operating state, the second switching element connects the electrically controlled heat exchanger section and the electrically controlled heat dissipation section and blocks the bypass pipe. In the fourth operating state, the second switching element connects the electrically controlled heat exchanger section and the bypass pipe and blocks the electrically controlled heat dissipation section. And / or, the thermal management system further includes a first connecting pipe connected between the first end of the fuel heating pipe and the bypass pipe, and a second connecting pipe connected between the second end of the fuel heating pipe and the bypass pipe. A third switching element is provided between the first connecting pipe and the bypass pipe. The third switching element has a fifth operating state and a sixth operating state. In the fifth operating state, the third switching element opens the bypass pipe and blocks the first connecting pipe. In the sixth operating state, the third switching element opens the first connecting pipe and blocks the portion of the bypass pipe located between the first connecting pipe and the second connecting pipe.

[0012] Furthermore, the thermal management system also includes an engine circulation pipeline, which includes an engine heat exchange pipe section and an engine cooling pipe section. The engine heat exchange pipe section exchanges heat with the engine, and a second radiator is installed on the engine cooling pipe section. The engine cooling pipe section and the fuel heating pipe are connected in parallel, and one of them is connected to the engine heat exchange pipe section.

[0013] Furthermore, the thermal management system also includes a third connecting pipe disposed between the first end of the fuel heating pipe and the first end of the engine cooling pipe section, and a fourth connecting pipe disposed between the second end of the fuel heating pipe and the second end of the engine cooling pipe section.

[0014] Furthermore, a fourth switching element is provided at the first end of the fuel heating pipe, the fourth switching element having a seventh working state and an eighth working state. In the seventh working state, the fourth switching element connects the fuel heating pipe and the third connecting pipe; in the eighth working state, the fourth switching element blocks the fuel heating pipe and the third connecting pipe. And / or, a fifth switching element is provided at the second end of the fuel heating pipe, the fifth switching element having a ninth working state and a tenth working state. In the ninth working state, the fifth switching element connects the fuel heating pipe and the fourth connecting pipe; in the tenth working state, the fifth switching element blocks the fuel heating pipe and the fourth connecting pipe. And / or, a sixth switching element is provided at the connection position of the third connecting pipe, the engine heat exchange pipe section, and the engine cooling pipe section, the sixth switching element having an eleventh working state and a twelfth working state. In the eleventh working state, the sixth switching element connects the engine cooling pipe section and the engine heat exchange pipe section and blocks the third connecting pipe; in the twelfth working state, the sixth switching element connects the engine heat exchange pipe section and the third connecting pipe and blocks the engine cooling pipe section.

[0015] According to another aspect of the present invention, a hybrid vehicle is provided, including a thermal management system, wherein the thermal management system is the thermal management system described above.

[0016] Applying the technical solution of this invention, the battery circulation pipeline is used for heat exchange with the battery, enabling the battery to operate at a suitable temperature. The battery circulation pipeline can be connected in series with the fuel heating pipeline, allowing the heat generated during battery operation to be transferred to the fuel tank through both pipelines, heating the fuel and increasing its temperature. This, in turn, enables flash-boiling injection, improving combustion efficiency. By utilizing the heat generated by the battery to heat the fuel, this application effectively utilizes the heat generated by internal vehicle components, eliminating the need for an additional heater on the fuel heating pipeline and reducing the cost of the thermal management system. Therefore, the technical solution of this application effectively solves the problem of high cost associated with adding a heater to the fuel pipeline to achieve flash-boiling injection in related technologies. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of an embodiment of a thermal management system according to the present invention is shown;

[0019] Figure 2 It shows Figure 1A schematic diagram of the thermal management system, in which the fuel heating pipeline, battery circulation pipeline and electronic control circulation pipeline are connected in series to achieve fuel flash-boil injection;

[0020] Figure 3 It shows Figure 1 A schematic diagram of the thermal management system, in which the fuel heating pipe and the engine heat exchange pipe are connected in series to achieve fuel flash-boil injection;

[0021] Figure 4 A schematic diagram of an embodiment of a thermal management system according to the present invention is shown;

[0022] Figure 5 It shows Figure 4 A schematic diagram of the thermal management system, in which the fuel heating pipeline, battery circulation pipeline and electronic control circulation pipeline are connected in series to achieve fuel flash-boil injection;

[0023] Figure 6 It shows Figure 4 A schematic diagram of the thermal management system, in which the fuel heating pipe and the engine heat exchange pipe are connected in series to achieve fuel flash-boil injection;

[0024] Figure 7 A schematic diagram of an embodiment of a thermal management system according to the present invention is shown;

[0025] Figure 8 It shows Figure 7 A schematic diagram of the thermal management system, in which the fuel heating pipeline, battery circulation pipeline and electronic control circulation pipeline are connected in series to achieve fuel flash-boil injection;

[0026] Figure 9 It shows Figure 7 A schematic diagram of the thermal management system, in which the fuel heating pipeline and the electronically controlled circulation pipeline are connected in series to achieve fuel flash-boiling injection;

[0027] Figure 10 It shows Figure 7 A schematic diagram of the thermal management system, in which the fuel heating pipeline and the battery circulation pipeline are connected in series to achieve fuel flash-boil injection;

[0028] Figure 11 It shows Figure 7 The schematic diagram of the thermal management system shows that the fuel heating pipe and the engine heat exchange pipe are connected in series to achieve fuel flash-boil injection.

[0029] The above figures include the following reference numerals:

[0030] 01. Fuel heating pipe; 02. Battery circulation pipe; 021. Battery heat exchange pipe section; 022. Battery cooling pipe section; 03. Electronic control circulation pipe; 031. Electronic control heat exchange pipe section; 032. Electronic control cooling pipe section; 04. Bypass pipe; 05. First connecting pipe; 06. Second connecting pipe; 07. Engine circulation pipe; 071. Engine heat exchange pipe section; 072. Engine cooling pipe section; 08. Third connecting pipe; 09. Fourth connecting pipe; 011. Motor circulation pipe; 012. Motor oil circulation pipe; 013. Fifth connecting pipe; 014. Sixth connecting pipe;

[0031] 1. Fuel tank; 2. Battery; 3. Electronic control unit; 4. First switching unit; 5. First radiator; 6. Second switching unit; 7. Third switching unit; 8. Second radiator; 9. Fourth switching unit; 10. Fifth switching unit; 11. Sixth switching unit; 12. Engine; 13. Heater; 14. First heat exchanger; 15. First water pump; 16. Second water pump; 17. Water tank; 18. Second heat exchanger; 19. Oil pump; 20. Third water pump; 21. Seventh switching unit. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] like Figure 1 , Figure 4 and Figure 7 As shown, this application provides a thermal management system for use in hybrid vehicles. An embodiment of the thermal management system of this application includes a fuel heating pipe 01 and a battery circulation pipe 02. The fuel heating pipe 01 is used to heat the fuel in the fuel tank 1. The battery circulation pipe 02 is used to exchange heat with the battery 2. The battery circulation pipe 02 can be connected in series with the fuel heating pipe 01 to transfer the heat generated by the battery 2 to the fuel tank 1 and heat the fuel, so that the fuel can be injected through a flash boiling process.

[0036] In this embodiment, the battery circulation line 02 is used for heat exchange with the battery 2, enabling the battery 2 to operate at a suitable temperature. The battery circulation line 02 is connected in series with the fuel heating line 01, allowing the heat generated during battery 2 operation to be transferred to the fuel tank 1 through both lines, heating the fuel and increasing its temperature. This, in turn, enables flash-boiling injection, improving combustion efficiency. By utilizing the heat generated by the battery 2 to heat the fuel, this embodiment effectively utilizes the heat generated by internal vehicle components, eliminating the need for an additional heater on the fuel heating line 01 and reducing the cost of the thermal management system. Therefore, this embodiment effectively solves the problem of high costs associated with adding a heater to the fuel line for flash-boiling injection in related technologies.

[0037] It should be noted that in this embodiment, the battery circulation pipeline 02 is itself a ring-shaped pipeline, and a heat exchange medium (such as water) flows inside this ring-shaped pipeline to heat or cool the battery 2. Figure 1As shown, the battery circulation pipeline 02 is equipped with a heater 13, a first heat exchanger 14, and a first water pump 15. The first water pump 15 provides power to the heat exchange medium within the battery circulation pipeline 02. The heater 13 is a PTC heater; when the hybrid vehicle operates in a low-temperature environment, the heater 13 can be activated to heat the heat exchange medium within the battery circulation pipeline 02, thereby heating the battery 2 and allowing it to operate at a suitable temperature, thus improving battery performance. The battery circulation pipeline 02 can absorb the cooling energy from the air conditioning pipeline of the thermal management system (not part of this improvement, not shown in the figure) through the first heat exchanger 14 to lower the temperature of the battery 2, ensuring it operates at a suitable temperature and improving battery performance. When the battery circulation pipeline 02 is connected in series with the fuel heating pipeline 01, closing the air conditioning pipeline or blocking the heat exchange between the air conditioning pipeline and the battery circulation pipeline 02 allows the heat generated by the battery 2 during operation to be transferred to the fuel tank 1 through the battery circulation pipeline 02 and the fuel heating pipeline 01 to heat the fuel.

[0038] like Figure 1 , Figure 4 and Figure 7 As shown, the thermal management system also includes an electronically controlled circulation pipeline 03, which is used for heat exchange with the electronic control device 3. The electronically controlled circulation pipeline 03 can be connected in series with the fuel heating pipeline 01 to transfer the heat generated by the electronic control device 3 to the fuel tank 1 and heat the fuel, enabling the fuel to be injected through a flash boiling process. The electronically controlled circulation pipeline 03 is used for heat exchange with the electronic control device 3, allowing the electronic control device 3 to operate at a suitable temperature. The electronically controlled circulation pipeline 03 can be connected in series with the fuel heating pipeline 01, so that the heat generated during the operation of the electronic control device 3 can be transferred to the fuel tank 1 through the electronically controlled circulation pipeline 03 and the fuel heating pipeline 01, heating the fuel in the fuel tank 1 and increasing the fuel temperature. This allows the fuel to be injected through a flash boiling process, improving combustion efficiency. In this embodiment, by utilizing the heat generated by the electronic control device 3 to heat the fuel, the heat generated by the heat-generating components inside the vehicle can be effectively utilized, eliminating the need to add a heater to the fuel heating pipeline 01 and reducing the cost of the thermal management system.

[0039] Among them, the aforementioned electronic control device 3 includes, but is not limited to, a clutch controller, an air conditioning panel controller, a semiconductor controller, and an intelligent driving cabin controller.

[0040] It should be noted that the above statement "the electronically controlled circulation line 03 can be connected in series with the fuel heating line 01" does not mean that the entire electronically controlled circulation line 03 is connected in series with the fuel heating line 01, but rather that a portion of the electronically controlled circulation line 03 is connected in series with the fuel heating line 01.

[0041] like Figure 1 , Figure 4 and Figure 7 As shown, the thermal management system also includes a first switching element 4 disposed between the battery circulation line 02 and the electronic control circulation line 03. The first switching element 4 has a first working state and a second working state. In the first working state, the battery circulation line 02 and the electronic control circulation line 03 are independent of each other. In the second working state, the battery circulation line 02 and the electronic control circulation line 03 are connected in series to transfer the heat generated by the battery 2 and the electronic control device 3 to the fuel tank 1 and heat the fuel, enabling the fuel to be injected through a flash boiling process. When the first switching element 4 is in the second working state, the battery circulation line 02 and the electronic control circulation line 03 are connected in series so that the heat generated by the battery 2 and the electronic control device 3 can be transferred to the fuel tank 1 and heat the fuel, thereby improving the fuel injection effect through a flash boiling process.

[0042] When the first switching element 4 is in the first working state, the battery circulation pipeline 02 and the electronic control circulation pipeline 03 are independent of each other. At this time, the battery circulation pipeline 02 operates independently, or the battery circulation pipeline 02 is connected in series with the fuel heating pipeline 01 and transfers the heat generated by the battery 2 to the fuel tank 1 to heat the fuel, or the electronic control circulation pipeline 03 operates independently, or the electronic control circulation pipeline 03 is connected in series with the fuel heating pipeline 01 and transfers the heat generated by the electronic control device 3 to the fuel tank 1 to heat the fuel.

[0043] like Figure 1 , Figure 4 and Figure 7 As shown, the electronically controlled circulation pipeline 03 includes an electronically controlled heat exchange section 031 and an electronically controlled heat dissipation section 032. The electronically controlled device 3 is installed on the electronically controlled heat exchange section 031, and a first radiator 5 is installed on the electronically controlled heat dissipation section 032. The fuel heating pipeline 01 and the electronically controlled heat dissipation section 032 are connected in parallel, and one of them is connected to the electronically controlled heat exchange section 031. When the electronically controlled heat dissipation section 032 is connected to the electronically controlled heat exchange section 031, the heat exchange medium absorbs the heat generated by the electronically controlled device 3 during operation and dissipates the heat to the external environment through the first radiator 5 when flowing through the electronically controlled heat exchange section 031. When the electronically controlled heat exchange section 031 is connected to the fuel heating pipeline 01, the heat exchange medium absorbs the heat generated by the electronically controlled device 3 during operation and transfers the heat to the fuel tank 1 to heat the fuel inside, thereby achieving fuel flash-boiling injection.

[0044] like Figure 1 and Figure 4As shown, the thermal management system also includes a bypass pipe 04. The bypass pipe 04, the fuel heating pipe 01, and the electrically controlled heat dissipation pipe section 032 are connected in parallel, and one of them is selectively connected to the electrically controlled heat exchange pipe section 031. When the heat generated by the electrically controlled device 3 is relatively small, the bypass pipe 04 can be connected to the electrically controlled heat exchange pipe section 031. When the heat exchange medium flows through the electrically controlled heat exchange pipe section 031, it absorbs the heat generated by the electrically controlled device 3 during operation and dissipates heat to the external environment through the pipe walls of the electrically controlled heat exchange pipe section 031 and the bypass pipe 04.

[0045] like Figure 1 and Figure 4 As shown, a second switching element 6 is provided at the connection between the electrically controlled heat exchanger section 031 and the electrically controlled heat dissipation section 032. One end of the bypass pipe 04 is connected to the second switching element 6. The second switching element 6 has a third working state and a fourth working state. In the third working state, the second switching element 6 connects the electrically controlled heat exchanger section 031 and the electrically controlled heat dissipation section 032 and blocks the bypass pipe 04. In the fourth working state, the second switching element 6 connects the electrically controlled heat exchanger section 031 and the bypass pipe 04 and blocks the electrically controlled heat dissipation section 032. By switching the working state of the second switching element 6, it is possible to connect the electrically controlled heat exchanger section 031 and the electrically controlled heat dissipation section 032 or connect the electrically controlled heat exchanger section 031 and the bypass pipe 04.

[0046] like Figure 1 and Figure 4As shown, the thermal management system also includes a first connecting pipe 05 connected between the first end of the fuel heating pipe 01 and the bypass pipe 04, and a second connecting pipe 06 connected between the second end of the fuel heating pipe 01 and the bypass pipe 04. A third switching element 7 is provided between the first connecting pipe 05 and the bypass pipe 04. The third switching element 7 has a fifth working state and a sixth working state. In the fifth working state, the third switching element 7 opens the bypass pipe 04 and blocks the first connecting pipe 05. In the sixth working state, the third switching element 7 opens the first connecting pipe 05 and blocks the portion of the bypass pipe 04 located between the first connecting pipe 05 and the second connecting pipe 06. The fuel heating pipe 01 and the electronically controlled circulation pipe 03 are connected by setting the first connecting pipe 05 and the second connecting pipe 06. Through the cooperation of the second switching element 6 and the third switching element 7, the bypass pipe 04, the fuel heating pipe 01, and the electronically controlled heat dissipation pipe section 032 can be connected in parallel, with one of them selectively connected to the electronically controlled heat exchange pipe section 031. Specifically, when the second switching element 6 is in the third working state, the electronically controlled heat exchange pipe section 031 is connected to the electronically controlled heat dissipation pipe section 032 and the bypass pipe 04. 4. Both the fuel heating pipe 01 and the second switching element 6 are disconnected. When the second switching element 6 is in the fourth working state and the third switching element 7 is in the fifth working state, the electrically controlled heat exchange pipe section 031 is connected to the bypass pipe 04 and disconnected from both the electrically controlled heat dissipation pipe section 032 and the fuel heating pipe 01. When the second switching element 6 is in the fourth working state and the third switching element 7 is in the sixth working state, the electrically controlled heat exchange pipe section 031 is connected to the fuel heating pipe 01 and disconnected from both the bypass pipe 04 and the electrically controlled heat dissipation pipe section 032.

[0047] like Figure 1 , Figure 4 and Figure 7 As shown, the thermal management system also includes an engine circulation pipe 07, which includes an engine heat exchange pipe section 071 and an engine cooling pipe section 072. The engine heat exchange pipe section 071 exchanges heat with the engine, and the engine cooling pipe section 072 is equipped with a second radiator 8. The engine cooling pipe section 072 and the fuel heating pipe section 01 are connected in parallel, and one of them is selectively connected to the engine heat exchange pipe section 071. When the engine cooling pipe section 072 is connected to the engine heat exchange pipe section 071, the heat exchange medium absorbs the heat generated by the engine 12 during operation when flowing through the engine heat exchange pipe section 071 and dissipates the heat to the external environment through the second radiator 8. When the engine heat exchange pipe section 071 is connected to the fuel heating pipe section 01, the heat exchange medium absorbs the heat generated by the engine 12 during operation when flowing through the engine heat exchange pipe section 071 and transfers the heat to the fuel tank 1 to heat the fuel inside, thereby achieving fuel flash-boil injection.

[0048] like Figure 1 , Figure 4 and Figure 7As shown, the thermal management system also includes a third connecting pipe 08 disposed between the first end of the fuel heating pipe 01 and the first end of the engine cooling pipe section 072, and a fourth connecting pipe 09 connected between the second end of the fuel heating pipe 01 and the second end of the engine cooling pipe section 072. The third connecting pipe 08 and the fourth connecting pipe 09 enable communication between the engine heat exchange pipe section 071 and the fuel heating pipe 01.

[0049] like Figure 1 , Figure 4 and Figure 7 As shown, a fourth switching element 9 is provided at the first end of the fuel heating pipe 01. The fourth switching element 9 has a seventh working state and an eighth working state. In the seventh working state, the fourth switching element 9 connects the fuel heating pipe 01 and the third connecting pipe 08. In the eighth working state, the fourth switching element 9 disconnects the fuel heating pipe 01 and the third connecting pipe 08. By controlling the working state of the fourth switching element 9, the connection or disconnection between the fuel heating pipe 01 and the third connecting pipe 08 can be achieved.

[0050] like Figure 1 , Figure 4 and Figure 7 As shown, a fifth switching element 10 is provided at the second end of the fuel heating pipe 01. The fifth switching element 10 has a ninth working state and a tenth working state. In the ninth working state, the fifth switching element 10 connects the fuel heating pipe 01 and the fourth connecting pipe 09. In the tenth working state, the fifth switching element 10 disconnects the fuel heating pipe 01 and the fourth connecting pipe 09. By controlling the working state of the fifth switching element 10, the connection or disconnection between the fuel heating pipe 01 and the fourth connecting pipe 09 can be achieved.

[0051] like Figure 1 , Figure 4 and Figure 7 As shown, a sixth switching element 11 is provided at the connection position of the third connecting pipe 08, the engine heat exchange pipe section 071, and the engine cooling pipe section 072. The sixth switching element 11 has an eleventh working state and a twelfth working state. In the eleventh working state, the sixth switching element 11 connects the engine cooling pipe section 072 and the engine heat exchange pipe section 071 and blocks the third connecting pipe 08. In the twelfth working state, the sixth switching element 11 connects the engine heat exchange pipe section 071 and the third connecting pipe 08 and blocks the engine cooling pipe section 072. By controlling the working state of the sixth switching element 11, the engine heat exchange pipe section 071 can be connected to the engine cooling pipe section 072 or to the third connecting pipe 08, thereby enabling the engine cooling pipe section 072 and the fuel heating pipe 01 to be selectively connected to the engine heat exchange pipe section 071.

[0052] Figures 1 to 3The diagram shows a structural schematic of one embodiment of this application. In this embodiment, the first switching element 4 and the second switching element 6 are both four-way valves, and the third switching element 7, the fourth switching element 9, the fifth switching element 10 and the sixth switching element 11 are all two-position three-way valves.

[0053] Specifically, it should be noted that in this embodiment, the battery circulation pipeline 02 itself is a ring-shaped pipeline, and a heat exchange medium (such as water) flows inside this ring-shaped pipeline to heat or cool the battery 2. Figure 1 As shown, the battery circulation pipeline 02 is equipped with a heater 13, a first heat exchanger 14, and a first water pump 15. The first water pump 15 provides power to the heat exchange medium within the battery circulation pipeline 02. When the hybrid vehicle operates in a low-temperature environment, the heater 13 can be activated to heat the heat exchange medium within the battery circulation pipeline 02, thereby heating the battery 2 and allowing it to operate at a suitable temperature, thus improving battery performance. The battery circulation pipeline 02 can absorb the cooling energy from the air conditioning pipeline of the thermal management system (the air conditioning pipeline is not part of this improvement and is not shown in the figure) through the first heat exchanger 14 to lower the temperature of the battery 2, allowing it to operate at a suitable temperature and improving battery performance. When the battery circulation pipeline 02 is connected in series with the fuel heating pipeline 01, the air conditioning pipeline can be shut off or the heat exchange between the air conditioning pipeline and the battery circulation pipeline 02 can be blocked, allowing the heat generated by the battery 2 during operation to be transferred to the fuel tank 1 through the battery circulation pipeline 02 and the fuel heating pipeline 01 to heat the fuel.

[0054] The electrically controlled circulation pipeline 03 is itself a ring-shaped pipeline, through which a heat exchange medium (such as water) flows to cool the electrically controlled device 3. Figure 1 As shown, the electrically controlled circulation pipeline 03 is equipped with a second water pump 16, a water jug ​​17, a first radiator 5, and an electrical control device 3. Specifically, the second water pump 16 and the electrical control device 3 are installed on the electrically controlled heat exchange pipe section 031, and the water jug ​​17 and the first radiator 5 are installed on the electrically controlled heat dissipation pipe section 032. The water jug ​​17 is used to store the heat exchange medium. The second water pump 16 can provide power for the heat exchange medium in the electrically controlled circulation pipeline 03. The electrically controlled circulation pipeline 03 can dissipate heat to the external environment through the first radiator 5 to reduce the temperature of the electrical control device 3.

[0055] The first switching element 4 is a series-parallel four-way valve and is installed between the battery circulation pipeline 02 and the electronic control circulation pipeline 03. Ports A and B of the first switching element 4 are connected to the two ends of the battery circulation pipeline 02, and ports C and D of the first switching element 4 are connected to the two ends of the electronic control circulation pipeline 03. When the first switching element 4 is in the first working state, ports A and B are connected, and ports C and D are connected, so that the battery circulation pipeline 02 and the electronic control circulation pipeline 03 can operate independently. When the first switching element 4 is in the second working state, ports A and D are connected, and ports B and C are connected, so that the battery circulation pipeline 02 and the electronic control circulation pipeline 03 are connected in series, so that the cooling capacity of the air conditioning pipeline can be transferred to the battery 2 and the electronic control device 3.

[0056] The thermal management system also includes a motor circulation pipe 011 and a motor oil circulation pipe 012. The motor oil circulation pipe 012 is located inside the motor. The motor circulation pipe 011 is partially connected in parallel with the electronically controlled heat exchange pipe section 031. A second heat exchanger 18 is installed on the motor circulation pipe 011. An oil pump 19 is installed on the motor oil circulation pipe 012 to provide power for the flow of oil. The heat exchange medium (e.g., water) flows in the motor circulation pipe 011, and the oil flows in the motor oil circulation pipe 012. The heat exchange medium in the motor circulation pipe 011 and the oil in the motor oil circulation pipe 012 exchange heat through the second heat exchanger 18 to reduce the temperature of the oil.

[0057] The second switching element 6 is a proportional bypass four-way valve and is located at the connection point of the electrically controlled heat exchange tube section 031, the electrically controlled heat dissipation tube section 032, the bypass pipeline 04, and the motor circulation pipeline 011. Port K of the second switching element 6 is connected to the electrically controlled heat exchange tube section 031, port L is connected to the electrically controlled heat dissipation tube section 032, port M is connected to the bypass pipeline 04, and port H is connected to the motor circulation pipeline 011. The flow rate between ports K and H can be adjusted, and they can be opened simultaneously or only one can be opened. Only one port of ports L and M can be opened at the same time. When the second switching element 6 is in the third working state, port L is open and port M is closed; when the second switching element 6 is in the fourth working state, port M is open and port L is closed, so as to realize the parallel connection of the electrically controlled heat dissipation tube section 032 and the bypass pipeline 04, and the selective connection of one of them to the electrically controlled heat exchange tube section 031.

[0058] The third switching element 7 is a two-position three-way valve and is installed on the bypass pipeline 04. Ports E1 and E3 of the third switching element 7 are connected to the bypass pipeline 04, and port E2 is connected to the first connecting pipeline 05. Port E1 can be connected to either port E2 or port E3. When the third switching element 7 is in the fifth working state, port E1 is connected to port E3 and disconnected from port E2 to conduct the bypass pipeline 04 and block the first connecting pipeline 05. When the third switching element 7 is in the sixth working state, port E1 is connected to port E2 and disconnected from port E3 to conduct the first connecting pipeline 05 and block the portion of the bypass pipeline 04 located between the first connecting pipeline 05 and the second connecting pipeline 06.

[0059] The fourth switching element 9 is a two-position three-way valve located at the connection point of the fuel heating line 01, the first connecting line 05, and the third connecting line 08. Port G1 of the fourth switching element 9 is connected to the third connecting line 08, port G2 is connected to the first connecting line 05, and port G3 is connected to the fuel heating line 01. Port G3 is connected to either port G1 or port G2. When the fourth switching element 9 is in the seventh working state, port G3 is connected to port G1 and disconnected from port G2 to connect the fuel heating line 01 and the third connecting line 08 and block the first connecting line 05. When the fourth switching element 9 is in the eighth working state, port G3 is connected to port G2 and disconnected from port G1 to connect the fuel heating line 01 and the first connecting line 05 and block the third connecting line 08.

[0060] The fifth switching element 10 is a two-position three-way valve located at the connection point of the fuel heating line 01, the second connecting line 06, and the fourth connecting line 09. Port F1 of the fifth switching element 10 is connected to the fuel heating line 01, port F2 is connected to the fourth connecting line 09, and port F3 is connected to the second connecting line 06. Port F1 is connected to either port F2 or port F3. When the fifth switching element 10 is in the ninth working state, port F1 is connected to port F2 and disconnected from port F3 to connect the fuel heating line 01 and the fourth connecting line 09 and block the second connecting line 06. When the fifth switching element 10 is in the tenth working state, port F1 is connected to port F3 and disconnected from port F2 to connect the fuel heating line 01 and the second connecting line 06 and block the fourth connecting line 09.

[0061] The sixth switching component 11 is a two-position three-way valve located at the connection point of the engine heat exchange pipe section 071, the engine cooling pipe section 072, and the third connecting pipe 08. The sixth switching component 11 has port I1 connected to the engine heat exchange pipe section 071, port I2 connected to the engine cooling pipe section 072, and port I3 connected to the third connecting pipe 08. Port I1 is connected to either port I2 or port I3. When the sixth switching component 11 is in the eleventh working state, port I1 is connected to port I2 and disconnected from port I3 to connect the engine heat exchange pipe section 071 and the engine cooling pipe section 072 and block the third connecting pipe 08. When the sixth switching component 11 is in the twelfth working state, port I1 is connected to port I3 and disconnected from port I2 to connect the engine heat exchange pipe section 071 and the third connecting pipe 08 and block the engine cooling pipe section 072.

[0062] A third water pump 20 is also installed on the engine heat exchange pipe section 071, which provides power for the flow of heat exchange medium in the engine circulation pipe 07.

[0063] In this embodiment, coolant flows through the battery circulation line 02, the electronic control circulation line 03, the bypass line 04, the motor circulation line 011, the first connecting line 05, the second connecting line 06, the fuel heating line 01, the engine circulation line 07, the third connecting line 08, and the fourth connecting line 09; engine oil flows through the motor oil circulation line 012. The coolant in the motor circulation line 011 and the engine oil in the motor oil circulation line 012 exchange heat through the second heat exchanger 18.

[0064] In this embodiment, the battery circulation line 02 is not directly connected to the fuel heating line 01, but is connected to the fuel heating line 01 after being connected in series with the electronic control circulation line 03. In an embodiment not shown in the figure, a connecting line can also be provided between the battery circulation line and the fuel heating line to achieve a direct connection between the battery circulation line and the fuel heating line.

[0065] When a hybrid vehicle equipped with the thermal management system of this embodiment is running in pure electric drive mode, engine 12 stops, and the thermal management system mainly operates under the following conditions:

[0066] Operating Condition 1: Battery 2, electronic control device 3, and motor are cooled through the first radiator 5.

[0067] The first switching element 4 has ports A and D connected, and ports B and C connected. The second switching element 6 has port L open, and the flow rate between ports K and H is adjusted according to the actual situation. The battery circulation pipeline 02 and the electronic control circulation pipeline 03 are connected in series. The first water pump 15 and the second water pump 16 are running, so that the battery 2, the electronic control device 3 and the motor dissipate heat to the environment through the first radiator 5.

[0068] Operating Condition 2: Battery 2 is cooled by the air conditioner, and the electronic control device 3 and the motor are cooled by the first radiator 5.

[0069] The first switching element 4 has ports A and B connected, and ports C and D connected. The second switching element 6 has port L open, and the flow rate between ports K and H is adjusted according to the actual situation. The battery circulation pipeline 02 and the electronic control circulation pipeline 03 are connected in parallel. The first water pump 15 and the second water pump 16 are running. The first heat exchanger 14 absorbs the heat in the battery circulation pipeline 02, that is, the battery 2 dissipates heat through the first heat exchanger 14. The electronic control device 3 and the motor dissipate heat to the environment through the first radiator.

[0070] When the engine 12 of the hybrid vehicle equipped with the thermal management system of this embodiment is running, the thermal management system mainly operates under the following conditions:

[0071] Operating Condition 1: Utilizing the heat dissipation of engine 12 to heat the fuel (see...) Figure 3 )

[0072] The fourth switching element 9 has its port G1 connected to port G3 and disconnected from port G2. The fifth switching element has its port F1 connected to port F2 and disconnected from port F3. The sixth switching element 11 has its port I1 connected to port I3 and disconnected from port I2. The third water pump 20 is running. The cooling system of the engine 12 is used to heat the fuel in the fuel tank 1, so that the flash injection mode can be used.

[0073] Under this condition, the hybrid vehicle can operate in hybrid mode or in engine direct drive mode.

[0074] Operating Condition 2: The fuel is heated using the heat dissipation from battery 2, electronic control device 3, and the motor (see...). Figure 2 )

[0075] The first switching element 4 has ports A and D connected, and ports B and C connected. The second switching element 6 has ports K, H, and M connected, and port L disconnected. The third switching element 7 has ports E1 and E2 connected, and ports E3 disconnected. The fourth switching element 9 has ports G3 and G2 connected, and ports G1 disconnected. The fifth switching element 10 has ports F1 and F3 connected, and ports F2 disconnected. The sixth switching element 11 has ports I1 and I2 connected, and ports I3 disconnected. The engine 12 is cooled by the second radiator 8. The cooling of the battery 2, the electronic control device 3, and the motor is used to heat the fuel in the fuel tank 1, thereby enabling the use of the flash injection mode.

[0076] Under this condition, the hybrid vehicle operates in hybrid mode.

[0077] Figures 4 to 6A schematic diagram of another embodiment of this application is shown. The following mainly describes the parts of this embodiment that are different from the previous embodiment. The parts that are the same in the two embodiments will not be described again.

[0078] In this embodiment, the second switching element 6 is a two-position three-way valve, and the second heat exchanger 18 is directly mounted on the electrically controlled heat exchange tube section 031. Port H of the second switching element 6 is connected to the electrically controlled heat exchange tube section 031, port K is connected to the electrically controlled heat dissipation tube section 032, and port M is connected to the bypass pipe 04. When the second switching element 6 is in the third working state, port H is connected to port K and disconnected from port M to connect the electrically controlled heat exchange tube section 031 and the electrically controlled heat dissipation tube section 032 and block the bypass pipe 04. When the second switching element 6 is in the fourth working state, port H is connected to port M and disconnected from port K to connect the electrically controlled heat exchange tube section 031 and the bypass pipe 04 and block the electrically controlled heat dissipation tube section 032.

[0079] Figures 7 to 11 The diagram illustrates a structural schematic of yet another embodiment of this application. The following mainly focuses on the differences between this embodiment and... Figures 1 to 3 The embodiments shown will be described in detail, and the parts that are the same in the two embodiments will not be described again.

[0080] The first switching element 4 is an eight-way valve; the battery circulation pipeline 02 includes a battery heat exchange section 021 and a battery heat dissipation section 022, wherein a battery 2, a heater 13, and a first water pump 15 are connected in series on the battery heat exchange section 021, and the two ends of the battery heat exchange section 021 are connected to ports K and J of the first switching element 4, respectively. A first heat exchanger 14 is provided on the battery heat dissipation section 022, and the two ends of the battery heat dissipation section 022 are connected to ports A and B of the first switching element 4, respectively; the electrically controlled circulation pipeline 03 includes an electrically controlled heat exchange section 031 and an electrically controlled heat dissipation section 032, wherein a second water pump 16, an electrical control device 3, and a second heat exchanger 18 are connected in series on the electrically controlled heat exchange section 031, and the two ends of the electrically controlled heat exchange section 031 are connected to ports K and J of the first switching element 4, respectively. Port C and port D are connected. A first radiator 5 is provided on the electrically controlled heat dissipation pipe section 032. The two ends of the electrically controlled heat dissipation pipe section 032 are respectively connected to port E and port H of the first switching element 4. A seventh switching element 21 is also provided on the electrically controlled heat dissipation pipe section 032. The seventh switching element 21 is a two-position three-way valve. Port Z1 and port Z3 of the seventh switching element 21 are connected to the electrically controlled heat dissipation pipe section 032. The thermal management system also includes a fifth connecting pipe 013 and a sixth connecting pipe 014. The two ends of the fifth connecting pipe 013 are respectively connected to port Z2 of the seventh switching element 21 and port G2 of the fourth switching element 9. The two ends of the sixth connecting pipe 014 are respectively connected to the end of the first radiator 5 away from the seventh switching element 21 and port F3 of the fifth switching element 10.

[0081] Figure 8A schematic diagram of a structure using the heat dissipation of battery 2 to heat fuel is shown. Under this condition, port K of the first switching element 4 is connected to port D, and port J is connected to port H. Port Z1 of the seventh switching element 21 is connected to port Z2 and disconnected from port Z3. Port G3 of the fourth switching element 9 is connected to port G2 and disconnected from port G1. Port F1 of the fifth switching element 10 is connected to port F3 and disconnected from port F2. This allows the portions of the battery heat exchange tube section 021 and the electronically controlled heat exchange tube section 031 without the first radiator 5 to be connected to the fuel heating pipe, thereby realizing the use of the heat dissipation of battery 2 to heat fuel.

[0082] Figure 9 A schematic diagram of a structure for heating fuel using the heat dissipation of the electronic control device 3 and the motor is shown. Under this condition, port D of the first switching element 4 is connected to port E, and port C is connected to port H. Port Z1 of the seventh switching element 21 is connected to port Z2 and disconnected from port Z3. Port G3 of the fourth switching element 9 is connected to port G2 and disconnected from port G1. Port F1 of the fifth switching element 10 is connected to port F3 and disconnected from port F2. This allows the portions of the battery heat exchange tube section 021 and the electronic control heat exchange tube section 031 without the first radiator 5 to be connected to the fuel heating pipe, thereby realizing the heating of fuel using the heat dissipation of the electronic control device 3 and the motor.

[0083] Figure 10 A schematic diagram is shown of a structure that uses the heat dissipation of battery 2, electronic control device 3, and motor to heat fuel. In this operating condition, port K of the first switching element 4 is connected to port C, port D is connected to port E, and port H is connected to port J. Port Z1 of the seventh switching element 21 is connected to port Z2 and disconnected from port Z3. Port G3 of the fourth switching element 9 is connected to port G2 and disconnected from port G1. Port F1 of the fifth switching element 10 is connected to port F3 and disconnected from port F2. This allows the portions of the battery heat exchange tube section 021 and the electronic control heat exchange tube section 031 without the first radiator 5 to be connected to the fuel heating pipe, thereby realizing the use of the heat dissipation of battery 2, electronic control device 3, and motor to heat fuel.

[0084] Figure 11 This diagram illustrates a structure that utilizes the heat dissipation of engine 12 to heat the fuel, showing the connection states of each switching component and... Figures 1 to 3 The embodiments shown are the same and will not be repeated here.

[0085] This application also provides a hybrid vehicle. An embodiment of the hybrid vehicle includes a thermal management system, wherein the thermal management system is the aforementioned thermal management system. The aforementioned thermal management system effectively solves the problem in related technologies where adding a heater to the fuel line to achieve fuel flash-boil injection results in high costs. The hybrid vehicle with the aforementioned thermal management system also has the aforementioned advantages.

[0086] In the description of this invention, it should be understood that "a plurality of" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0087] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0088] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A thermal management system applied to a hybrid vehicle, characterized in that, The thermal management system includes: Fuel heating line (01) is used to heat the fuel in fuel tank (1); The battery circulation pipeline (02) is used to exchange heat with the battery (2). The battery circulation pipeline (02) can be connected in series with the fuel heating pipeline (01) to transfer the heat generated by the battery (2) to the fuel tank (1) and heat the fuel, so that the fuel can be injected by flash boiling.

2. The thermal management system according to claim 1, characterized in that, The thermal management system further includes an electronically controlled circulation pipeline (03), which is used to exchange heat with the electronically controlled device (3). The electronically controlled circulation pipeline (03) can be connected in series with the fuel heating pipeline (01) to transfer the heat generated by the electronically controlled device (3) to the fuel tank (1) and heat the fuel, so that the fuel can be injected by flash boiling.

3. The thermal management system according to claim 2, characterized in that, The thermal management system further includes a first switching element (4) disposed between the battery circulation pipeline (02) and the electronic control circulation pipeline (03). The first switching element (4) has a first working state and a second working state. In the first working state, the battery circulation pipeline (02) and the electronic control circulation pipeline (03) are independent of each other. In the second working state, the battery circulation pipeline (02) and the electronic control circulation pipeline (03) are connected in series to transfer the heat generated by the battery (2) and the electronic control device (3) to the fuel tank (1) and heat the fuel, so that the fuel can be injected by flash boiling.

4. The thermal management system according to claim 2 or 3, characterized in that, The electrically controlled circulation pipeline (03) includes an electrically controlled heat exchange section (031) and an electrically controlled heat dissipation section (032). The electrically controlled device (3) is installed on the electrically controlled heat exchange section (031), and a first radiator (5) is installed on the electrically controlled heat dissipation section (032). The fuel heating pipeline (01) and the electrically controlled heat dissipation section (032) are connected in parallel and one of them is connected to the electrically controlled heat exchange section (031).

5. The thermal management system according to claim 4, characterized in that, The thermal management system also includes a bypass pipeline (04), the bypass pipeline (04), the fuel heating pipeline (01) and the electrically controlled heat dissipation pipeline (032) are arranged in parallel and one of them is connected to the electrically controlled heat exchange pipeline (031).

6. The thermal management system according to claim 5, characterized in that, A second switching element (6) is provided at the connection between the electrically controlled heat exchange tube section (031) and the electrically controlled heat dissipation tube section (032). One end of the bypass pipe (04) is connected to the second switching element (6). The second switching element (6) has a third working state and a fourth working state. In the third working state, the second switching element (6) connects the electrically controlled heat exchange tube section (031) and the electrically controlled heat dissipation tube section (032) and blocks the bypass pipe (04). In the fourth working state, the second switching element (6) connects the electrically controlled heat exchange tube section (031) and the bypass pipe (04) and blocks the electrically controlled heat dissipation tube section (032); and / or, The thermal management system further includes a first connecting pipe (05) connected between the first end of the fuel heating pipe (01) and the bypass pipe (04) and a second connecting pipe (06) connected between the second end of the fuel heating pipe (01) and the bypass pipe (04). A third switching element (7) is provided between the first connecting pipe (05) and the bypass pipe (04). The third switching element (7) has a fifth working state and a sixth working state. In the fifth working state, the third switching element (7) opens the bypass pipe (04) and blocks the first connecting pipe (05). In the sixth working state, the third switching element (7) opens the first connecting pipe (05) and blocks the portion of the bypass pipe (04) located between the first connecting pipe (05) and the second connecting pipe (06).

7. The thermal management system according to any one of claims 1 to 3, characterized in that, The thermal management system also includes an engine circulation pipeline (07), which includes an engine heat exchange pipe section (071) and an engine cooling pipe section (072). The engine heat exchange pipe section (071) exchanges heat with the engine (12). A second radiator (8) is provided on the engine cooling pipe section (072). The engine cooling pipe section (072) and the fuel heating pipe section (01) are connected in parallel and one of them is connected to the engine heat exchange pipe section (071).

8. The thermal management system according to claim 7, characterized in that, The thermal management system further includes a third connecting pipe (08) disposed between the first end of the fuel heating pipe (01) and the first end of the engine heat exchange pipe section (071), and a fourth connecting pipe (09) disposed between the second end of the fuel heating pipe (01) and the second end of the engine heat exchange pipe section (071).

9. The thermal management system according to claim 8, characterized in that, A fourth switching element (9) is provided at the first end of the fuel heating pipeline (01). The fourth switching element (9) has a seventh working state and an eighth working state. In the seventh working state, the fourth switching element (9) connects the fuel heating pipeline (01) and the third connecting pipeline (08). In the eighth working state, the fourth switching element (9) blocks the fuel heating pipeline (01) and the third connecting pipeline (08); and / or, A fifth switching element (10) is provided at the second end of the fuel heating pipeline (01). The fifth switching element (10) has a ninth working state and a tenth working state. In the ninth working state, the fifth switching element (10) connects the fuel heating pipeline (01) and the fourth connecting pipeline (09). In the tenth working state, the fifth switching element (10) blocks the fuel heating pipeline (01) and the fourth connecting pipeline (09); and / or, A sixth switching element (11) is provided at the connection position of the third connecting pipe (08), the engine heat exchange pipe section (071), and the engine cooling pipe section (072). The sixth switching element (11) has an eleventh working state and a twelfth working state. In the eleventh working state, the sixth switching element (11) connects the engine cooling pipe section (072) and the engine heat exchange pipe section (071) and blocks the third connecting pipe (08). In the twelfth working state, the sixth switching element (11) connects the engine heat exchange pipe section (071) and the third connecting pipe (08) and blocks the engine cooling pipe section (072).

10. A hybrid vehicle, comprising a thermal management system, characterized in that, The thermal management system is the thermal management system according to any one of claims 1 to 9.

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