Heat storage driven electric vehicle and heat storage driving method

Abstract

The embodiment of the invention provides a heat storage driven electric vehicle and a heat storage driving method.The electric vehicle comprises one or more first energy storage devices, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, and the pneumatic conveying device comprises a circulating pipeline and a conveying pump on the circulating pipeline; the delivery pump is connected with an inlet of the first energy storage device through a circulating pipeline and delivers a fluid working medium to the first energy storage device, the first energy storage device is filled with a first energy storage medium, the temperature range borne by the first energy storage medium ranges from-250 DEG C to 3000 DEG C, and an outlet of the first energy storage device is connected with the thermoelectric conversion module through a circulating pipeline. The thermoelectric conversion module comprises a gas compressor and a steam turbine generator. According to the embodiment of the invention, heat energy can be converted into electric energy to supply power to the electric vehicle, the cruising ability of the electric vehicle is prolonged, meanwhile, the energy storage temperature of the first energy storage equipment reaches up to 3000 DEG C, the energy storage density is large, and more energy can be released for the electric vehicle.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a heat storage driven electric vehicle and a heat storage driving method. Background Art

[0002] The electrification transformation plays a key role in achieving the "dual carbon" goals in the transportation industry, which is of great significance for energy conservation, emission reduction and environmental protection. Pure electric vehicles, which rely on electricity rather than fossil fuels, avoid exhaust emissions and greenhouse gas generation, greatly promote the development of my country's environmental protection cause, and become the preferred alternative to traditional fuel transportation.

[0003] Pure electric vehicles are not only green, energy-efficient, and low in operating costs, but also significantly reduce dependence on fossil energy through integration with renewable energy systems, thereby enhancing national energy security. However, an important challenge facing pure electric vehicles is their endurance, which is directly affected by the performance of the on-board battery. In addition, the lack of fast charging infrastructure and the long-term regular charging requirements further limit the practical application scope of pure electric vehicles. Summary of the invention

[0004] In view of the above problems, a thermal storage-driven electric vehicle and a thermal storage-driven method are proposed to overcome the above problems or at least partially solve the above problems, including:

[0005] A heat storage driven electric vehicle, the electric vehicle comprising: one or more first energy storage devices, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprising a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump being connected to the inlet of the first energy storage device through the circulation pipeline to deliver a fluid working medium to the first energy storage device, the first energy storage device being filled with a first energy storage medium, and the temperature range of the first energy storage medium being -250°C to 3000°C, the outlet of the first energy storage device being connected to the thermoelectric conversion module through the circulation pipeline, the thermoelectric conversion module comprising a compressor and a steam turbine generator, wherein:

[0006] The pneumatic conveying device is used to provide a fluid working medium for the first energy storage device;

[0007] The first energy storage device is used to store heat through the first energy storage medium, and use the first energy storage medium to exchange heat with the introduced fluid;

[0008] The thermoelectric conversion module is used to receive the heated fluid working medium, pressurize the fluid working medium using a compressor, and convert the heat of the pressurized fluid working medium into electrical energy using a steam turbine generator for use by the electric vehicle;

[0009] The temperature control module is used to monitor the operating state of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating state.

[0010] Optionally, a first valve is provided on the circulation pipe before the inlet of the first energy storage device, and a second valve is provided on the circulation pipe after the outlet of the first energy storage device, and the status information includes battery status information; the temperature control module is used to open the first valve and the second valve to control the first energy storage device to release energy when it is detected that the battery status information of the electric vehicle shows that the remaining power is less than a first preset power, and to close the first valve and the second valve to control the first energy storage device to stop releasing energy when it is detected that the battery status information of the electric vehicle shows that the remaining power is greater than or equal to a second preset power.

[0011] Optionally, the electric vehicle includes: a second energy storage device, which is filled with a second energy storage medium, and is located between the first energy storage device and the thermoelectric conversion module. The second energy storage device is used to use the second energy storage medium to exchange energy with the fluid working medium output by the first energy storage medium, so that the second energy storage medium stores energy.

[0012] Optionally, the temperature control module is also used to monitor the temperature inside the electric vehicle, and adjust the air intake speed of the pneumatic conveying equipment based on the temperature inside the vehicle and the preset temperature of the on-board heating system. The first outlet of the second energy storage device is connected to the thermoelectric conversion module, and the second outlet of the second energy storage device is connected to the fresh air device of the temperature control module. The fresh air device is used to cool the gas output from the second outlet of the second energy storage device to the preset temperature of the on-board heating system.

[0013] Optionally, the outlet of the thermoelectric conversion module is connected to the inlet of the pneumatic transportation equipment through a circulation pipeline to return the fluid working medium output from the thermoelectric conversion module to the pneumatic transportation equipment.

[0014] Optionally, a third energy storage device is arranged on the circulation pipeline between the inlet of the pneumatic conveying device and the outlet of the thermoelectric conversion module, and the third energy storage device is filled with a third energy storage medium. The third energy storage device is used to receive the fluid working medium output by the thermoelectric conversion module and use the third energy storage medium to perform heat exchange on the fluid working medium.

[0015] Optionally, the electric energy generated by the thermoelectric conversion module is used to provide electric energy to a power control module driven by electric energy of the electric vehicle to drive the electric vehicle, and / or the electric energy generated by the thermoelectric conversion module is used to charge a battery assembly of the electric vehicle.

[0016] A heat storage driving method for an electric vehicle, applied to the heat storage driven electric vehicle as described above, the method comprising:

[0017] After the first energy storage device is turned on, heating the fluid working medium input into the first energy storage device using the first energy storage medium filled in the first energy storage device;

[0018] After the heated fluid working medium is pressurized, a steam turbine generator is used to convert the heat of the pressurized fluid working medium into electrical energy;

[0019] The electric energy is used to drive the electric vehicle.

[0020] An electronic device comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the above-mentioned heat storage driving method when executed by the processor.

[0021] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the heat storage driving method described above is implemented.

[0022] The embodiments of the present invention have the following advantages:

[0023] In the embodiment of the present invention, the first energy storage device can be used as a backup energy source to convert thermal energy into electrical energy to power the electric vehicle and extend the endurance of the electric vehicle. At the same time, the energy storage temperature of the first energy storage device is as high as 3000°C and the energy storage density is large, which can release more energy for the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0025] Figure 1 is a schematic structural diagram of a heat storage driven electric vehicle provided by an embodiment of the present invention;

[0026] Figure 2 It is a flow chart of the steps of a heat storage driving method provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 , showing a schematic structural diagram of a heat storage-driven electric vehicle provided by an embodiment of the present invention, the electric vehicle comprises: one or more first energy storage devices 101, a thermoelectric conversion module 102, a pneumatic conveying device 103 and a temperature control module, the pneumatic conveying device comprises a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the first energy storage device through the circulation pipeline, and delivers fluid to the first energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature range of the first energy storage medium is -250°C to 3000°C, the outlet of the first energy storage device is connected to the thermoelectric conversion module through the circulation pipeline, and the thermoelectric conversion module comprises a compressor and a steam turbine generator.

[0029] In practical applications, the first energy storage device can store thermal energy up to 3000°C, and has a high heat storage density. The first energy storage device can then convert the stored thermal energy into electrical energy to continuously sustain the electric vehicle, thereby improving the endurance of the electric vehicle.

[0030] In an embodiment of the present invention, when the first energy storage device stores thermal energy up to 3000°C, in order to realize the conversion between thermal energy and electrical energy, the thermoelectric conversion module, the pneumatic conveying equipment and the temperature control module can be adaptively adjusted according to the scenario. For example, the pipelines and the thermoelectric conversion modules in the pneumatic conveying equipment are made of high-temperature resistant materials, and the temperature range that can be measured by the temperature control module must include the highest temperature and the lowest temperature in the scenario.

[0031] In the embodiment of the present invention, the first energy storage medium can select energy storage particles that are resistant to high temperatures and have a large specific heat capacity, such as graphite particles. Graphite particles refer to tiny particles made of graphite materials. Graphite is a mineral composed of carbon elements, and its crystal structure is layered. The carbon atoms in each layer are bound by strong covalent bonds, and the layers interact with each other through weaker van der Waals forces. Graphite particles also have good thermal conductivity and can effectively transfer heat. And graphite has good stability to most chemical substances at room temperature. At the same time, graphite can maintain the stability of its physical and chemical properties in a high temperature environment, and the melting point of graphite is about 3652 degrees Celsius (6602 degrees Fahrenheit).

[0032] It should be noted that the specific material of the first energy storage medium in the embodiment of the present invention can be selected according to the actual application scenario and is not limited to the graphite particles in the above example. There is no excessive restriction on this in the embodiment of the present invention.

[0033] In one embodiment of the present invention, the first energy storage device is detachably connected to the electric transportation vehicle. Specifically, the first energy storage device can be set in a specific first energy storage device buckle slot for fixation; the first energy storage device can be replaced at any time, and the operation is simple.

[0034] In another embodiment of the present invention, the heat stored in the first energy storage device may come from: solar energy, wind energy, valley electricity, refrigerators, industrial waste heat, geothermal energy, biomass energy, electricity conversion, environmental thermal energy, chemical reaction heat, nuclear energy, wind energy and tidal energy.

[0035] Among them, solar thermal energy can be collected by solar collectors and stored in thermal energy storage systems, such as hot water storage tanks or phase change materials. Industrial waste heat is waste heat generated during industrial production, such as steel, chemical, and power industries, which can be recovered and stored through heat exchangers. Geothermal energy can be extracted through geothermal wells and stored in geothermal energy storage systems for heating or power generation. Thermal energy generated during biomass combustion or biomass pyrolysis can be stored for heating or power generation. Electric energy conversion can be converted into heat or cold energy for storage through resistance heating, electrochemical reactions, or electrolysis of water. Ambient thermal energy is thermal energy in the environment, such as heat in air, water, or soil, which can be extracted and stored through heat pump technology. Chemical reaction heat is heat released during certain chemical reactions, such as the heat generated by the reaction of sodium hydroxide with water. The heat generated in nuclear reactors can be used to generate steam, which in turn drives turbines to generate electricity and stores excess heat. Wind and tidal energy: The excess electrical energy generated by these renewable energy sources during power generation can be converted into thermal energy storage through electric heat conversion equipment.

[0036] In one embodiment of the present invention, in order to store and release more heat, a plurality of first energy storage devices may be used in the electric vehicle, and the plurality of first energy storage devices may be connected in series or in parallel.

[0037] In the embodiment of the present invention, the functions of the modules in the electric vehicle are as follows:

[0038] The pneumatic conveying device in the embodiment of the present invention can be used to provide a fluid medium for the first energy storage device, wherein the fluid medium can be air or an inert gas. The pneumatic conveying device in the embodiment of the present invention can adjust the gas flow rate of the gas entering the first energy storage device, thereby controlling the conversion rate of heat energy and electrical energy.

[0039] In one embodiment of the present invention, the gas delivery device further comprises a filter. The filter is used to filter the delivered gas, such as filtering out particles carried in the gas or other substances that affect the conversion of heat energy and electric energy in the embodiment of the present invention.

[0040] The first energy storage device in the embodiment of the present invention can store heat through the first energy storage medium, and use the first energy storage medium to exchange heat with the fluid medium introduced; the first energy storage device selects a first energy storage medium that is resistant to high temperatures and has a high specific heat capacity, so that after the fluid medium with a lower temperature is transported to the first energy storage device, the fluid medium is fully in contact with the first energy storage medium to achieve the transfer of heat energy, that is, the heat energy can be transferred from the first energy storage medium to the fluid medium. Then, the fluid medium flows out of the first energy storage device to achieve the release of heat energy.

[0041] The thermoelectric conversion module in the embodiment of the present invention can be used to receive the fluid working medium heated by the first energy storage device, pressurize the fluid working medium using a compressor, and convert the heat of the pressurized fluid working medium into electrical energy using a steam turbine generator for use by an electric vehicle. The electric vehicle in the embodiment of the present invention can be an electric vehicle.

[0042] The temperature control module in the embodiment of the present invention can be used to monitor the operating state of the electric vehicle, and control the first energy storage device to start or stop energy release according to the operating state.

[0043] Specifically, a first valve is provided on the circulation pipeline before the inlet of the first energy storage device, and a second valve is provided on the circulation pipeline after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to start or stop energy release.

[0044] In practical applications, the temperature control module can control the first valve and the second valve to open or close. In a scenario where the first energy storage device needs to release heat energy, the temperature control module can control the first valve and the second valve to open. Thus, the first energy storage device can pass fluid working medium for heat exchange and output the heated fluid working medium to achieve heat energy release; in a scenario where the first energy storage device does not need to release energy, the temperature control system can control the first valve and the second valve to close, and the first energy storage device is in a static environment and does not release energy to the outside.

[0045] In an embodiment of the present invention, the status information of the electric vehicle includes battery status information; the temperature control system can monitor the battery status information, and then control the first valve and the second valve according to the battery status information. Specifically, when it is detected that the battery status information of the electric vehicle shows that the remaining power is less than the first preset power, the temperature control module can control the opening of the first valve and the second valve to control the first energy storage device to release energy; when it is detected that the battery status information of the electric vehicle shows that the remaining power is greater than or equal to the second preset power, the temperature control module can control the closing of the first valve and the second valve to control the first energy storage device to stop releasing energy.

[0046] In one embodiment of the present invention, the electric vehicle further includes a central control system, the central control system of the vehicle may include a central control interface, the central control interface is used to display the real-time status of the vehicle of the vehicle, the temperature control module includes a first temperature meter (such as Figure 1 T1 in the figure) and a second temperature controller (such as Figure 1 T2); wherein, the top of the first energy storage device is the fluid outlet, with the lowest temperature, and the bottom of the first energy storage device is the fluid inlet, with the highest temperature.

[0047] The central control system is used to generate a first reminder message for feeding back that the energy of the first energy storage device is exhausted when the second temperature controller detects that the temperature of the first energy storage device is lower than the first set value, and display the first reminder message on the central control interface of the central control system; for example, the first reminder message may be the words "The energy of the first energy storage device is about to be exhausted, please charge". When the temperature control module detects that the temperature of the first energy storage device is lower than the first set value, it controls the first energy storage device to stop releasing energy.

[0048] The central control system is also used to generate a second reminder message for feedback that the first energy storage device is fully charged when the first thermometer detects that the temperature is higher than the second set value during the charging stage of the first energy storage device, and display the second reminder message on the central control interface of the central control system; for example, the second reminder message can be "The first energy storage device is fully charged, please unplug the power." At the same time, disconnect the external charging circuit to avoid overcharging.

[0049] It should be noted that the first setting value and the second setting value in the embodiment of the present invention can be set according to actual scenarios, and there are no excessive restrictions on this in the embodiment of the present invention.

[0050] The temperature control system is used to control the first energy storage device to turn off energy release when it detects that the first energy storage device is in the charging stage, and to control the first energy storage device to start energy release when receiving a command from the central control system to control the first energy storage device to start energy release.

[0051] In one embodiment of the present invention, a first energy storage device is charged in an energy storage system, the energy storage system includes a fluidized bed charging module, a fixed bed energy storage module, and a circulation pipeline connecting the fluidized bed charging module and the fixed bed energy storage module, the fixed bed energy storage module includes a first fixed bed group consisting of multiple fixed beds connected in series or in parallel, a second fixed bed connected in series with the first fixed bed group, and a third temperature meter located at the top of the second fixed bed, and a fourth temperature meter located at the bottom of the second fixed bed, a fluid working medium flows through the circulation pipeline, the fluidized bed cavity of the fluidized bed charging module is filled with the second first energy storage medium, and the fixed bed cavity of the fixed bed energy storage module is filled with the first energy storage medium, wherein the first energy storage device is the fixed bed in the first fixed bed group.

[0052] In practical applications, after the fluidized bed charging module heats the inflowing fluid, the fluid exchanges energy with the first energy storage medium, and the fluid carries the energy to the fixed bed energy storage module. After the fluid stores energy in the fixed bed in the first fixed bed group, it is output from the second fixed bed. Through the above arrangement, the fixed bed in the first fixed bed group is filled with energy, and the charged fixed bed can be disassembled for standby use. Specifically, the charged fixed bed can be used in the electric vehicle in the embodiment of the present invention as the first energy storage device for energy release.

[0053] In one embodiment of the present invention, the heat energy carried by the fluid working medium is used to generate electricity at the thermoelectric conversion module, and the generated electricity is used to power the vehicle. After the thermoelectric conversion, the temperature of the fluid working medium is reduced and can be directly discharged or recycled. When the fluid working medium needs to be recycled, a circulation pipeline can be set between the thermoelectric conversion module and the delivery pump, and the fluid working medium after the thermoelectric conversion is delivered to the delivery pump through the circulation pipeline, and then the delivery pump re-inputs the fluid working medium into the first energy storage device for heat energy conversion.

[0054] In one embodiment of the present invention, an electric vehicle includes: a second energy storage device, a second energy storage medium is filled in the second energy storage device, the second energy storage device is located between the first energy storage device and the thermoelectric conversion module, and the second energy storage device uses the second energy storage medium and exchanges energy with the fluid working medium output by the first energy storage medium, so that the second energy storage medium stores energy. In an embodiment of the present invention, the second energy storage device can be used as an intermediate energy storage device between the first energy storage device and the thermoelectric conversion module to effectively control the temperature of the fluid working medium entering the thermoelectric conversion module, wherein the temperature range that the second energy storage medium can withstand is -250°C to 3000°C.

[0055] In one embodiment of the present invention, the temperature control module is also used to monitor the temperature inside the electric transportation vehicle, and adjust the air intake speed of the pneumatic conveying equipment based on the temperature inside the vehicle and the preset temperature of the on-board heating system. The first outlet of the second energy storage device is connected to the thermoelectric conversion module, and the second outlet of the second energy storage device is connected to the fresh air device of the temperature control module. The fresh air device is used to cool the gas output from the second outlet of the second energy storage device to the preset temperature of the on-board heating system.

[0056] That is, the second energy storage device, as an intermediate energy storage device, stores the heat carried by the fluid working medium flowing through the energy storage device, thereby cooling the fluid working medium, and part of the heat is retained in the second energy storage device, so that the fluid working medium cooled by the second energy storage device can be transported to the thermoelectric conversion module through the first outlet. The second energy storage device can also realize heating of electric vehicles. For example, the fluid working medium can be transported into the second energy storage device, and the fluid working medium exchanges heat with the second energy storage device in the second energy storage device, and the heat energy of the second energy storage device is transferred to the fluid working medium to heat the fluid working medium, and then the heated fluid working medium is transported from the second outlet to the fresh air device to realize vehicle heating.

[0057] In one embodiment of the present invention, in order to avoid energy waste, the outlet of the thermoelectric conversion module can be connected to the inlet of the pneumatic transportation equipment through a circulation pipeline, so that the fluid working medium output from the thermoelectric conversion module is returned to the pneumatic transmission equipment, thereby realizing the fluid working medium circulation of the entire system and improving the thermal energy utilization rate.

[0058] In another embodiment of the present invention, a third energy storage device may be provided on the circulation pipeline between the inlet of the pneumatic conveying device and the outlet of the thermoelectric conversion module, and the third energy storage device is filled with a third energy storage medium, wherein the temperature range of the second energy storage medium is -250°C to 3000°C. The third energy storage device is used to receive the fluid working medium output by the thermoelectric conversion module, and use the third energy storage medium to perform heat exchange on the fluid working medium.

[0059] In the embodiment of the present invention, the first energy storage device can be used as a backup energy source to convert thermal energy into electrical energy to power the electric vehicle and extend the endurance of the electric vehicle. At the same time, the energy storage temperature of the first energy storage device is as high as 3000°C and the energy storage density is large, which can release more energy for the electric vehicle.

[0060] Reference Figure 2, showing a flow chart of the steps of a heat storage driving method for an electric vehicle provided by an embodiment of the present invention, the heat storage driving method for an electric vehicle is applied to a heat storage driven electric vehicle, the electric vehicle comprises: one or more first energy storage devices, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprises a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the first energy storage device through the circulation pipeline, and delivers a fluid working medium to the first energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature range of the first energy storage medium is -250°C to 3000°C, the outlet of the first energy storage device is connected to the thermoelectric conversion module through the circulation pipeline, the thermoelectric conversion module comprises a compressor and a steam turbine generator, wherein:

[0061] The pneumatic conveying device is used to provide a fluid working medium to the first energy storage device;

[0062] The first energy storage device is used to store heat through a first energy storage medium, and to use the first energy storage medium to perform heat exchange with an introduced fluid medium;

[0063] The thermoelectric conversion module is used to receive the heated fluid working medium, pressurize the fluid working medium using a compressor, and convert the heat of the pressurized fluid working medium into electrical energy using a steam turbine generator for use in electric vehicles;

[0064] The temperature control module is used to monitor the operating state of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating state.

[0065] The heat storage driving method based on the electric vehicle may specifically include the following steps:

[0066] Step S201, after the first energy storage device is turned on, the first energy storage medium filled in the first energy storage device is used to heat the fluid working medium input into the first energy storage device;

[0067] In practical applications, the first energy storage device can store thermal energy up to 3000°C, and has a high heat storage density, thereby releasing more heat.

[0068] After the first energy storage device is turned on, the fluid working medium is input into the first energy storage device from the bottom of the first energy storage device through the delivery pump. Inside the first energy storage device, heat energy exchange occurs between the high-temperature first energy storage medium storing heat and the low-temperature fluid working medium, that is, the low-temperature fluid working medium is heated to a high-temperature fluid working medium, and then the heated fluid working medium is output from the top of the first energy storage device.

[0069] Step S202, pressurizing the heated fluid working medium, and using a steam turbine generator to convert the heat of the pressurized fluid working medium into electrical energy;

[0070] After the heated fluid is output from the top of the first energy storage device, it can be transported to the compressor through a circulation pipeline, and then the gas is compressed in the compressor, and then the high-pressure and high-temperature gas is transported to the steam turbine generator, which can use the heat of the fluid to convert into electrical energy.

[0071] Step S203: using electric energy to drive the electric vehicle.

[0072] In an embodiment of the present invention, the electric vehicle further includes a central control system, and the temperature control module includes a first temperature controller connected to the top of the first energy storage device and a second temperature controller connected to the top of the first energy storage device.

[0073] When the second temperature controller monitors that the temperature of the first energy storage device is lower than the first set value, a first reminder message for feeding back that the energy of the first energy storage device is exhausted is generated, and the first reminder message is displayed on the central control interface of the central control system.

[0074] During the charging stage of the first energy storage device, when the first thermometer detects that the temperature is higher than the second set value, a second reminder message is generated to feedback that the first energy storage device is fully charged, and the second reminder message is displayed on the central control interface of the central control system.

[0075] When it is monitored that the first energy storage device is in the charging stage, the first energy storage device is controlled to turn off energy release. When a command from the central control system to control the first energy storage device to start energy release is received, the first energy storage device is controlled to start energy release.

[0076] Specifically, a first valve is provided on the circulation pipeline before the inlet of the first energy storage device, and a second valve is provided on the circulation pipeline after the outlet of the first energy storage device. The temperature control module controls the opening or closing of the first valve and the second valve to control the first energy storage device to start or stop energy release. That is, when the first valve and the second valve are closed, the first energy storage device stops energy release, and when the first valve and the second valve are opened, the first energy storage device starts energy release.

[0077] Specifically, when it is detected that the battery status information of the electric vehicle shows that the remaining power is less than a first preset power, the first valve and the second valve are opened to control the first energy storage device to release energy; when it is detected that the battery status information of the electric vehicle shows that the remaining power is greater than or equal to the second preset power, the first valve and the second valve are closed to control the first energy storage device to stop releasing energy.

[0078] In an embodiment of the present invention, after the first energy storage device is turned on, the first energy storage medium filled in the first energy storage device is used to heat the fluid working medium input into the first energy storage device; after the heated fluid working medium is pressurized, a steam turbine generator is used to convert the heat of the pressurized fluid working medium into electrical energy; the electric energy is used to drive the electric vehicle, so that the first energy storage device can be used as a backup energy source to convert thermal energy into electrical energy to power the electric vehicle, thereby extending the endurance of the electric vehicle. At the same time, the energy storage temperature of the first energy storage device is as high as 3000°C, and the energy storage density is large, which can release more energy for the electric vehicle.

[0079] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0080] An embodiment of the present invention further provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the heat storage driving method of the electric vehicle as described above is implemented.

[0081] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the heat storage driving method of the electric vehicle as described above is implemented.

[0082] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0083] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0084] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0085] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0086] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0087] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0088] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0089] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0090] The above provides a detailed introduction to a heat storage driven electric vehicle and a heat storage driving method. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A heat storage driven electric vehicle, characterized in that: The electric vehicle comprises: one or more first energy storage devices, a thermoelectric conversion module, a pneumatic conveying device and a temperature control module, the pneumatic conveying device comprises a circulation pipeline and a delivery pump on the circulation pipeline, the delivery pump is connected to the inlet of the first energy storage device through the circulation pipeline, and delivers a fluid working medium to the first energy storage device, the first energy storage device is filled with a first energy storage medium, and the temperature range of the first energy storage medium is -250°C to 3000°C, the outlet of the first energy storage device is connected to the thermoelectric conversion module through the circulation pipeline, and the thermoelectric conversion module comprises a compressor and a steam turbine generator, wherein: The pneumatic conveying device is used to provide a fluid working medium for the first energy storage device; The first energy storage device is used to store heat through the first energy storage medium, and use the first energy storage medium to exchange heat with the introduced fluid; The thermoelectric conversion module is used to receive the heated fluid working medium, pressurize the fluid working medium using the compressor, and convert the heat of the pressurized fluid working medium into electrical energy using the steam turbine generator for use by the electric vehicle; The temperature control module is used to monitor the status information of the electric vehicle and control the first energy storage device to start or stop energy release according to the operating status.

2. The heat storage driven electric vehicle according to claim 1, characterized in that: A first valve is arranged on the circulation pipeline before the inlet of the first energy storage device, and a second valve is arranged on the circulation pipeline after the outlet of the first energy storage device, and the status information includes battery status information; the temperature control module is used to open the first valve and the second valve to control the first energy storage device to release energy when it is detected that the battery status information of the electric vehicle shows that the remaining power is less than the first preset power, and to close the first valve and the second valve to control the first energy storage device to stop releasing energy when it is detected that the battery status information of the electric vehicle shows that the remaining power is greater than or equal to the second preset power.

3. The heat storage driven electric vehicle according to claim 1, characterized in that: The electric vehicle includes: a second energy storage device, in which a second energy storage medium is filled, and the second energy storage device is located between the first energy storage device and the thermoelectric conversion module. The second energy storage device is used to use the second energy storage medium to exchange energy with the fluid working medium output by the first energy storage medium, so that the second energy storage medium stores energy.

4. The heat storage driven electric vehicle according to claim 3, characterized in that: The temperature control module is also used to monitor the temperature inside the electric vehicle and adjust the air intake speed of the pneumatic conveying equipment based on the temperature inside the vehicle and the preset temperature of the on-board heating system. The first outlet of the second energy storage device is connected to the thermoelectric conversion module, and the second outlet of the second energy storage device is connected to the fresh air device of the temperature control module. The fresh air device is used to cool the gas output from the second outlet of the second energy storage device to the preset temperature of the on-board heating system.

5. The heat storage driven electric vehicle according to claim 1, characterized in that: The outlet of the thermoelectric conversion module is connected to the inlet of the pneumatic transportation equipment through a circulation pipeline so as to return the fluid working medium output from the thermoelectric conversion module to the pneumatic transportation equipment.

6. The heat storage driven electric vehicle according to claim 1, characterized in that: A third energy storage device is arranged on the circulation pipeline between the inlet of the pneumatic conveying device and the outlet of the thermoelectric conversion module. The third energy storage device is filled with a third energy storage medium. The third energy storage device is used to receive the fluid working medium output by the thermoelectric conversion module and use the third energy storage medium to perform heat exchange on the fluid working medium.

7. The heat storage driven electric vehicle according to claim 1, characterized in that: The electric energy generated by the thermoelectric conversion module is used to provide electric energy to the electric control module driven by electric energy of the electric vehicle to drive the electric vehicle, and / or the electric energy generated by the thermoelectric conversion module is used to charge the battery assembly of the electric vehicle.

8. A heat storage driving method for an electric vehicle, characterized in that: Applied to the thermal storage-driven electric vehicle according to any one of claims 1 to 7, the method comprising: After the first energy storage device is turned on, heating the fluid working medium input into the first energy storage device using the first energy storage medium filled in the first energy storage device; The heated fluid working medium is pressurized by the compressor, and the heat of the pressurized fluid working medium is converted into electrical energy by the steam turbine generator; The electric energy is used to drive the electric vehicle.

9. An electronic device, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the heat storage driving method according to any one of claim 8 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the heat storage driving method according to any one of claim 8 is implemented.

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