Energy recovery system, method, device, equipment and medium

Abstract

The invention discloses an energy recovery system, method, device and equipment and a medium. The energy recovery method comprises the steps that the target running state of an air conditioner loop is obtained; when the target operation state is a heating state, the actual working state of the air compressor is obtained; when the actual working state of the air compressor is a stagnation state, the air compressor is controlled to stop operation of a heating sub-loop; and when the actual working state of the air compressor is the running state, the air compressor is controlled to run, and the heating sub-loop runs. The heat exchanger is used for recycling the heat generated by the air compressor, when the air conditioner loop needs to use the heat generated by the air compressor, a refrigerant in the air conditioner loop flows through the heat exchanger, so that the utilization rate of the heat of the air compressor is increased, meanwhile, the consumption of vehicle-mounted electric energy in the heating process of the air conditioner loop is reduced, and the vehicle-mounted electric energy is saved. And the endurance mileage of the vehicle can be increased. The waste heat of the compressed air is effectively utilized, the heating comfort of the passenger compartment is improved, the energy consumption of the whole automobile is reduced, and then the endurance mileage of the automobile at the low temperature is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel vehicles, and in particular to an energy recovery system, method, device, equipment and medium. Background Art

[0002] The working principle of a fuel cell vehicle is as follows: hydrogen, as a fuel, undergoes an oxidation-reduction chemical reaction with oxygen in the atmosphere in the fuel cell mounted on the vehicle, generating electrical energy to drive the electric motor, which in turn drives the mechanical transmission structure in the vehicle, and in turn drives the vehicle's front axle (or rear axle) and other traveling mechanical structures, thereby driving the electric vehicle forward.

[0003] Since fuel cells require a large amount of air (mainly oxygen in the air), air compressors are usually used to compress the air and then inject it into the fuel cell stack for reaction. However, air compressors generate a lot of heat during the air compression process, and this heat is usually directly lost, resulting in low heat utilization. Therefore, how to improve the utilization rate of the heat generated by the air compressor is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application solve the technical problems in the prior art that the heat generated by the air compressor is lost and the heat utilization rate is low by providing an energy recovery system, method, device, equipment and medium, and achieve the technical effect of improving the utilization rate of the heat generated by the air compressor.

[0005] In a first aspect, the present application provides an energy recovery system, the system comprising an air conditioning circuit and an air supply circuit, the air conditioning circuit and the air supply circuit realize heat exchange through a heat exchanger;

[0006] The gas-liquid separation tank, the compressor, the first stop valve, the outdoor heat exchanger, the full-pass throttle valve, the first electronic expansion valve, the evaporator, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form a refrigeration sub-circuit;

[0007] The gas-liquid separation tank, the compressor, the fourth stop valve, the in-vehicle condenser, the full-pass throttle valve, the outdoor heat exchanger, the second stop valve, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form an air compressor stagnation heating sub-circuit;

[0008] The gas-liquid separation tank, the compressor, the fourth stop valve, the in-vehicle condenser, the second electronic expansion valve, the heat exchanger, the third stop valve, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form an air compressor operation heating sub-circuit;

[0009] The full-pass throttle valve is connected in parallel at both ends of the heat exchanger and the second electronic expansion valve;

[0010] The air supply circuit includes an air filter, an air compressor, a heat exchanger, an intercooler, a humidifier and a fuel cell stack which are connected in sequence.

[0011] In a second aspect, the present application provides an energy recovery method, which is applied to an energy recovery system provided in the first aspect, and the method comprises:

[0012] Obtain the target operating state of the air conditioning circuit;

[0013] When the target operating state is the heating state, the actual working state of the air compressor is obtained;

[0014] When the actual working state of the air compressor is stagnant, the air compressor is controlled to stagnate and operate as a heating sub-circuit;

[0015] When the actual working state of the air compressor is the running state, the air compressor is controlled to run the heating sub-circuit.

[0016] Furthermore, when the actual working state of the air compressor is a stagnant state, the air compressor is controlled to stagnate and operate as a heating sub-loop, including:

[0017] When the actual working state of the air compressor is a stagnant state, the fourth stop valve, the full-pass throttle valve and the second stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the second electronic expansion valve and the third stop valve are controlled to be closed, so that the air compressor stagnation heating sub-circuit is in a conducting state.

[0018] Furthermore, when the actual working state of the air compressor is the running state, the air compressor is controlled to run the heating sub-loop, including:

[0019] When the actual working state of the air compressor is the running state, the fourth stop valve, the second electronic expansion valve and the third stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the full-pass throttle valve and the second stop valve are controlled to be closed, so that the air compressor operation heating sub-circuit is in the conducting state.

[0020] Furthermore, when the actual working state of the air compressor is the running state, the air compressor is controlled to run the heating sub-loop, including:

[0021] When the actual working state of the air compressor is the running state, the target heating temperature of the passenger cabin space corresponding to the air conditioning circuit and the actual operating temperature of the air compressor are obtained;

[0022] According to the target heating temperature and the actual operating temperature, the target heating power of the air compressor circuit is determined, and the air compressor is controlled to operate the heating sub-circuit according to the target heating power.

[0023] Furthermore, after obtaining the target operating state of the air conditioning circuit, the method further includes:

[0024] When the target operating state is the cooling state, the refrigeration sub-circuit is controlled to operate.

[0025] Further, when the target operating state is the cooling state, controlling the cooling sub-loop to operate includes:

[0026] When the target operating state is the cooling state, the fourth stop valve, the second stop valve, the third stop valve, and the second electronic expansion valve are controlled to be closed, and the first stop valve, the full-pass throttle valve, and the first electronic expansion valve are controlled to be turned on, so that the refrigeration sub-circuit is in the on state.

[0027] In a third aspect, the present application provides an energy recovery device, which is applied to an energy recovery system provided in the first aspect, and the device includes:

[0028] A state acquisition module, used to obtain the target operating state of the air conditioning circuit;

[0029] A state acquisition module is used to obtain the actual working state of the air compressor when the target operating state is the heating state;

[0030] The first heating module is used to control the air compressor stagnation heating sub-circuit to operate when the actual working state of the air compressor is a stagnant state;

[0031] The second heating module is used to control the operation of the heating sub-loop of the air compressor when the actual working state of the air compressor is the running state.

[0032] Furthermore, the first heating module is used to:

[0033] When the actual working state of the air compressor is a stagnant state, the fourth stop valve, the full-pass throttle valve and the second stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the second electronic expansion valve and the third stop valve are controlled to be closed, so that the air compressor stagnation heating sub-circuit is in a conducting state.

[0034] Furthermore, the second heating module is used to:

[0035] When the actual working state of the air compressor is the running state, the fourth stop valve, the second electronic expansion valve and the third stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the full-pass throttle valve and the second stop valve are controlled to be closed, so that the air compressor operation heating sub-circuit is in the conducting state.

[0036] Furthermore, the second heating module is used to:

[0037] When the actual working state of the air compressor is the running state, the target heating temperature of the passenger cabin space corresponding to the air conditioning circuit and the actual operating temperature of the air compressor are obtained;

[0038] According to the target heating temperature and the actual operating temperature, the target heating power of the air compressor circuit is determined, and the air compressor is controlled to operate the heating sub-circuit according to the target heating power.

[0039] Furthermore, the refrigeration module is used to:

[0040] After the target operating state of the air-conditioning circuit is acquired, when the target operating state is the cooling state, the cooling sub-circuit is controlled to operate.

[0041] Furthermore, the refrigeration module is used to:

[0042] When the target operating state is the cooling state, the fourth stop valve, the second stop valve, the third stop valve, and the second electronic expansion valve are controlled to be closed, and the first stop valve, the full-pass throttle valve, and the first electronic expansion valve are controlled to be turned on, so that the refrigeration sub-circuit is in the on state.

[0043] In a fourth aspect, the present application provides a controller, comprising:

[0044] processor;

[0045] a memory for storing processor-executable instructions;

[0046] The processor is configured to execute to implement an energy recovery method as provided in the second aspect.

[0047] In a fifth aspect, the present application provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to implement an energy recovery method as provided in the second aspect.

[0048] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0049] This embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the heating state, the actual working state of the air compressor is obtained; when the actual working state of the air compressor is the stagnant state, the air compressor is controlled to stagnate and operate the heating sub-circuit; when the actual working state of the air compressor is the operating state, the air compressor is controlled to operate the heating sub-circuit. It can be seen that this embodiment uses a heat exchanger to recover the heat generated by the air compressor. When the air conditioning circuit needs to use the heat generated by the air compressor, the refrigerant in the air conditioning circuit flows through the heat exchanger to improve the utilization rate of the air compressor heat, while reducing the consumption of on-board electrical energy during the heating process of the air conditioning circuit, thereby increasing the vehicle's cruising range. This embodiment couples the air compressor with the air conditioning circuit, effectively utilizes the waste heat of compressed air, improves the heating comfort of the passenger compartment, reduces the energy consumption of the entire vehicle, and thereby increases the vehicle's cruising range at low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0051] Figure 1 A schematic diagram of the structure of an energy recovery system provided in this embodiment;

[0052] Figure 2 A schematic diagram of a process flow of an energy recovery method provided in this embodiment;

[0053] Figure 3 A schematic diagram of the structure of an energy recovery device provided in this embodiment;

[0054] Figure 4 A schematic diagram of the structure of a controller provided in this embodiment.

[0055] Reference numerals:

[0056] 1-gas-liquid separation tank, 2-compressor, 3-second stop valve, 4-first stop valve, 5-outdoor heat exchanger, 6-electronic fan, 7-fourth stop valve, 8-evaporator, 9-in-vehicle condenser, 10-third stop valve, 11-full-through throttle valve, 12-heat exchanger, 13-second electronic expansion valve, 14-first electronic expansion valve, 15-air filter, 16-air compressor, 17-intercooler, 18-humidifier, 19-fuel cell stack. DETAILED DESCRIPTION

[0057] The embodiments of the present application solve the technical problems in the prior art that the heat generated by the air compressor is lost and the heat utilization rate is low by providing an energy recovery system, method, device, equipment and medium.

[0058] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0059] This embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the heating state, the actual working state of the air compressor 16 is obtained; when the actual working state of the air compressor 16 is the stagnant state, the air compressor stagnation heating sub-circuit is controlled to operate; when the actual working state of the air compressor 16 is the operating state, the air compressor operation heating sub-circuit is controlled to operate. It can be seen that this embodiment uses the heat exchanger 12 to recover the heat generated by the air compressor 16. When the air conditioning circuit needs to use the heat generated by the air compressor 16, the refrigerant in the air conditioning circuit flows through the heat exchanger 12 to improve the utilization rate of the heat of the air compressor 16, while reducing the consumption of on-board electric energy during the heating process of the air conditioning circuit, thereby increasing the vehicle's cruising range. This embodiment couples the air compressor 16 with the air conditioning circuit, effectively utilizes the waste heat of compressed air, improves the heating comfort of the passenger compartment, reduces the energy consumption of the entire vehicle, and thereby increases the cruising range of the vehicle at low temperatures.

[0060] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0061] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0062] This embodiment provides Figure 1 An energy recovery system shown in FIG. 1 includes a controller (not shown in FIG. Figure 1 ), the air conditioning circuit and the air supply circuit, the air conditioning circuit and the air supply circuit realize heat exchange through the heat exchanger 12;

[0063] The air conditioning circuit includes a gas-liquid separation tank 1, a compressor 2, a fourth stop valve 7, an in-vehicle condenser 9, an evaporator 8, a first electronic expansion valve 14, a second electronic expansion valve 13, a full-pass throttle valve 11, a heat exchanger 12, a third stop valve 10, an outdoor heat exchanger 5, and a second stop valve 3;

[0064] The gas-liquid separation tank 1, the compressor 2, the first stop valve 4, the outdoor heat exchanger 5, the full-pass throttle valve 11, the first electronic expansion valve 14, the evaporator 8, and the gas-liquid separation tank 1 of the air conditioning circuit are sequentially connected to form a refrigeration sub-circuit;

[0065] The gas-liquid separation tank 1, the compressor 2, the fourth stop valve 7, the in-vehicle condenser 9, the full-pass throttle valve 11, the outdoor heat exchanger 5, the second stop valve 3, and the gas-liquid separation tank 1 of the air conditioning circuit are sequentially connected to form an air compressor stagnation heating sub-circuit;

[0066] The gas-liquid separation tank 1, the compressor 2, the fourth stop valve 7, the in-vehicle condenser 9, the second electronic expansion valve 13, the heat exchanger 12, the third stop valve 10, and the gas-liquid separation tank 1 of the air conditioning circuit are sequentially connected to form an air compressor operation heating sub-circuit;

[0067] The full-pass throttle valve 11 is connected in parallel at both ends of the heat exchanger 12 and the second electronic expansion valve 13;

[0068] The air supply circuit includes an air filter 15, an air compressor 16, a heat exchanger 12, an intercooler 17, a humidifier 18 and a fuel cell stack 19 which are connected in sequence.

[0069] In actual operation, in addition to the above-mentioned circuits and related equipment, some sensors are also set up accordingly. Figure 1 The corresponding pressure sensor P, temperature sensor T1, temperature pressure sensor PT, and temperature sensor T2 for measuring the temperature of the air supply circuit are provided. The relevant sensors can be set according to actual conditions, and this embodiment does not limit this.

[0070] The controller is electrically connected to the refrigeration sub-circuit, the air compressor stagnation heating sub-circuit, the air compressor operation heating sub-circuit, and the air supply circuit respectively. The controller is used to control the refrigeration sub-circuit, the air compressor stagnation heating sub-circuit, and the air compressor operation heating sub-circuit to be turned on or off respectively.

[0071] Specifically, the controller is electrically connected to the following devices respectively:

[0072] The second stop valve 3, the first stop valve 4, the outdoor heat exchanger 5, the electronic fan 6, the fourth stop valve 7, the third stop valve 10, the full-pass throttle valve 11, the second electronic expansion valve 13, the first electronic expansion valve 14, the air compressor 16, P, T1, PT and T2 and other electronic control devices.

[0073] This embodiment couples the air conditioning circuit and the air supply circuit through the heat exchanger 12, so that the air conditioning circuit can recover the heat of the air compressor 16 in the air supply circuit in the heating state, thereby improving the heat utilization rate of the air compressor 16, reducing the vehicle's energy consumption, and extending the vehicle's driving mileage.

[0074] Based on the same inventive concept, this embodiment provides Figure 2 An energy recovery method shown is applied to an energy recovery system as provided above, specifically to a controller of a heat recovery system, and the method includes steps S21 to S24.

[0075] Step S21, obtaining the target operating state of the air conditioning circuit;

[0076] Step S22, when the target operating state is the heating state, obtaining the actual operating state of the air compressor 16;

[0077] Step S23, when the actual working state of the air compressor 16 is a stagnant state, the air compressor 16 is controlled to stagnate and operate as a heating sub-circuit;

[0078] Step S24, when the actual working state of the air compressor 16 is the running state, the air compressor is controlled to run the heating sub-circuit.

[0079] A heat recovery method provided in this embodiment can be executed by an on-board controller of a vehicle where the air-conditioning circuit is located, or can be executed by an air-conditioning controller corresponding to the air-conditioning circuit. This embodiment only takes the air-conditioning controller as the execution subject for subsequent description.

[0080] Regarding step S21 , the target operating state of the air-conditioning circuit is acquired.

[0081] The operating state of the air conditioning circuit includes a working state and a non-working state, wherein the working state includes a cooling state and a heating state. A state identifier corresponding to the air conditioning circuit can be read, and the operating state of the air conditioning circuit can be determined based on the state identifier.

[0082] When the target operating state is a non-operating state, it means that the heat generated by the air compressor 16 needs to be dissipated, and the air-conditioning circuit does not operate. Although the heat generated by the air compressor 16 will be transferred to the heat exchanger 12, since the air-conditioning circuit does not operate, the heat in the heat exchanger 12 has little effect on the air-conditioning circuit.

[0083] When the target operation state is the cooling state, the refrigeration sub-circuit is controlled to operate. That is, when the target operation state is the cooling state, the fourth stop valve 7, the second stop valve 3, the third stop valve 10, and the second electronic expansion valve 13 are controlled to be closed, and the first stop valve 4, the full-pass throttle valve 11, and the first electronic expansion valve 14 are controlled to be turned on, so that the refrigeration sub-circuit is in the on state.

[0084] In the cooling state, the air conditioning circuit does not need to recover the heat generated by the air compressor 16. The air conditioning circuit can rely on the outdoor heat exchanger 5 for cooling, and the electronic fan 6 can change the air flow direction of the outdoor heat exchanger 5 to assist in cooling. In this embodiment, the full-pass throttle valve 11 is used to transmit the refrigerant in the air conditioning circuit, so that the refrigerant in the air conditioning circuit does not pass through the heat exchanger 12. Then, even if the air compressor 16 is in operation, that is, even if the air compressor 16 is compressing air for the battery stack 19 and generating heat, the heat in the heat exchanger 12 has basically no effect on the air conditioning circuit, which can greatly reduce the effect of the heat absorbed from the air compressor 16 in the heat exchanger 12 on the air conditioning circuit, and reduce the vehicle-mounted power consumed by the air conditioning circuit cooling.

[0085] When the target operating state is the heating state, step S22 may be continued.

[0086] Regarding step S22, when the target operating state is the heating state, the actual operating state of the air compressor 16 is obtained.

[0087] The operating state of the air compressor 16 includes a stagnant state and an operating state. Under the premise that the target operating state is the heating state, when the actual operating state of the air compressor 16 is the stagnant state, continue to execute step S23, and when the actual operating state of the air compressor 16 is the operating state, continue to execute step S24.

[0088] Regarding step S23, when the actual working state of the air compressor 16 is a stagnant state, the air compressor is controlled to stagnate the heating sub-loop operation.

[0089] When the actual working state of the air compressor 16 is a stagnant state, it means that the air compressor 16 is not working, which means that the air compressor 16 is not compressing air for the fuel cell stack 19, and the air compressor 16 basically generates no heat. At this time, the air compressor is controlled to stagnate the operation of the heating sub-circuit. In the current case, the air-conditioning circuit mainly relies on the outdoor heat exchanger 5 to achieve heating. The electronic fan 6 can change the airflow direction of the outdoor heat exchanger 5 to assist in heating.

[0090] Specifically, when the actual working state of the air compressor 16 is a stagnant state, the fourth stop valve 7, the full-pass throttle valve 11, and the second stop valve 3 are controlled to be turned on, and the first stop valve 4, the first electronic expansion valve 14, the second electronic expansion valve 13, and the third stop valve 10 are controlled to be closed, so that the air compressor stagnation heating sub-circuit is in a conducting state.

[0091] This embodiment uses a full-pass throttle valve 11 to transmit the refrigerant in the air-conditioning circuit, so that the refrigerant in the air-conditioning circuit will not pass through the heat exchanger 12. This can reduce the heat of the refrigerant in the air-conditioning circuit being absorbed by the heat exchanger 12, thereby ensuring that the heating efficiency of the air-conditioning circuit is relatively high, reducing the waste of vehicle-mounted electric energy in the air-conditioning circuit during the heating process, and improving the utilization rate of electric energy.

[0092] Regarding step S24, when the actual working state of the air compressor 16 is the running state, the air compressor is controlled to run the heating sub-circuit.

[0093] When the actual working state of the air compressor 16 is the running state, it means that the air compressor 16 is working and compressing air for the fuel cell stack 19. The air compressor 16 will generate more heat. At this time, the air compressor is controlled to run the heating sub-loop to recover the heat in the heat exchanger 12, that is, the heat generated by the air compressor 16 can be recovered.

[0094] When the actual working state of the air compressor 16 is the running state, the fourth stop valve 7, the second electronic expansion valve 13, and the third stop valve 10 are controlled to be turned on, and the first stop valve 4, the first electronic expansion valve 14, the full-pass throttle valve 11, and the second stop valve 3 are controlled to be closed, so that the air compressor operation heating sub-circuit is in a conducting state.

[0095] In this embodiment, the full-throttle valve 11 is closed, and the refrigerant in the air-conditioning circuit is controlled to pass through the heat exchanger 12, thereby recovering the heat of the air compressor 16 into the air-conditioning circuit as much as possible, thereby improving the utilization rate of the heat of the air compressor 16 and reducing the use of on-board electric energy for heating in the air-conditioning circuit, thereby extending the vehicle's cruising range and improving the utilization rate of on-board electric energy.

[0096] Specifically, when the actual working state of the air compressor 16 is the operating state, the target heating temperature of the passenger compartment space corresponding to the air-conditioning circuit and the actual operating temperature of the air compressor 16 can be obtained; then, based on the target heating temperature and the actual operating temperature, the target heating power of the air compressor circuit is determined, and the air compressor heating sub-circuit is controlled to operate according to the target heating power.

[0097] When the actual operating temperature is lower than the target heating temperature, or when the actual operating temperature is higher than the target heating temperature, and the difference between the two is lower than the preset temperature threshold, it means that the air conditioning circuit needs to use the on-board electric energy for heating on the premise of recovering the heat of the air compressor 16. In this case, the full-throttle valve 11 can be completely closed, so that the refrigerant in the air conditioning circuit flows through the heat exchanger 12. The refrigerant can absorb the heat recovered from the air compressor 16 in the heat exchanger 12, thereby improving the utilization rate of the heat of the air compressor 16 and reducing the use of on-board electric energy by the air conditioning circuit, thereby reducing the energy consumption of heating the passenger compartment space.

[0098] When the actual operating temperature is greater than the target heating temperature, and the difference between the two is greater than the preset temperature threshold, it means that the heat recovered from the air compressor 16 can basically cover the energy consumption of the air-conditioning circuit to heat the passenger compartment temperature to the target heating temperature. This can minimize the consumption of on-board electrical energy by the air-conditioning equipment. On the one hand, it improves the heat utilization rate of the air compressor 16, and on the other hand, it also reduces the consumption of on-board electrical energy and extends the vehicle's cruising range.

[0099] When the actual operating temperature is greater than the target heating temperature and the difference between the two is greater than the preset temperature threshold, it is necessary to control the air compressor to operate the heating circuit. When the heat exchanger 12 provides too much heat, causing the temperature of the air-conditioning circuit to be too high, the full-throttle valve 11 can be appropriately opened so that part of the refrigerant in the air-conditioning circuit does not pass through the heat exchanger 12, thereby reducing the heat obtained by the refrigerant in the air-conditioning circuit from the heat exchanger 12, so as to reduce the temperature in the passenger compartment to the target heating temperature.

[0100] In summary, this embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the heating state, the actual working state of the air compressor 16 is obtained; when the actual working state of the air compressor 16 is the stagnant state, the air compressor stagnation heating sub-circuit is controlled to operate; when the actual working state of the air compressor 16 is the operating state, the air compressor operation heating sub-circuit is controlled to operate. It can be seen that this embodiment uses the heat exchanger 12 to recover the heat generated by the air compressor 16. When the air conditioning circuit needs to use the heat generated by the air compressor 16, the refrigerant in the air conditioning circuit flows through the heat exchanger 12 to improve the utilization rate of the heat of the air compressor 16, while reducing the consumption of on-board electric energy during the heating process of the air conditioning circuit, thereby increasing the vehicle's cruising range. This embodiment couples the air compressor 16 with the air conditioning circuit, effectively utilizes the waste heat of compressed air, improves the heating comfort of the passenger compartment, reduces the energy consumption of the entire vehicle, and thereby increases the cruising range of the vehicle at low temperatures.

[0101] Based on the same inventive concept, this embodiment provides Figure 3 An energy recovery device shown is applied to an energy recovery system as provided above, and the device comprises:

[0102] A state acquisition module 31 is used to acquire a target operating state of an air conditioning circuit;

[0103] The state acquisition module 31 is used to acquire the actual working state of the air compressor 16 when the target operating state is the heating state;

[0104] The first heating module 32 is used to control the air compressor stagnation heating sub-circuit to operate when the actual working state of the air compressor 16 is a stagnant state;

[0105] The second heating module 33 is used to control the air compressor to operate the heating sub-loop when the actual working state of the air compressor 16 is the operating state.

[0106] Furthermore, the first heating module 32 is used to:

[0107] When the actual working state of the air compressor 16 is a stagnant state, the fourth stop valve 7, the full-pass throttle valve 11, and the second stop valve 3 are controlled to be turned on, and the first stop valve 4, the first electronic expansion valve 14, the second electronic expansion valve 13, and the third stop valve 10 are controlled to be closed, so that the air compressor stagnation heating sub-circuit is in a conducting state.

[0108] Furthermore, the second heating module 33 is used to:

[0109] When the actual working state of the air compressor 16 is the running state, the fourth stop valve 7, the second electronic expansion valve 13, and the third stop valve 10 are controlled to be turned on, and the first stop valve 4, the first electronic expansion valve 14, the full-pass throttle valve 11, and the second stop valve 3 are controlled to be closed, so that the air compressor operation heating sub-circuit is in a conducting state.

[0110] Furthermore, the second heating module 33 is used to:

[0111] When the actual working state of the air compressor 16 is the running state, the target heating temperature of the passenger cabin space corresponding to the air conditioning circuit and the actual operating temperature of the air compressor 16 are obtained;

[0112] According to the target heating temperature and the actual operating temperature, the target heating power of the air compressor circuit is determined, and the air compressor is controlled to operate the heating sub-circuit according to the target heating power.

[0113] Furthermore, the refrigeration module is used to:

[0114] After the target operating state of the air-conditioning circuit is acquired, when the target operating state is the cooling state, the cooling sub-circuit is controlled to operate.

[0115] Furthermore, the refrigeration module is used to:

[0116] When the target operating state is the cooling state, the fourth stop valve 7, the second stop valve 3, the third stop valve 10, and the second electronic expansion valve 13 are controlled to be closed, and the first stop valve 4, the full-pass throttle valve 11, and the first electronic expansion valve 14 are controlled to be turned on, so that the refrigeration sub-circuit is in a conducting state.

[0117] Based on the same inventive concept, this embodiment provides Figure 4 A controller as shown includes:

[0118] Processor 41;

[0119] A memory 42 for storing instructions executable by the processor 41;

[0120] The processor 41 is configured to execute to implement an energy recovery method as provided above.

[0121] Based on the same inventive concept, this embodiment provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by the processor 41 of the electronic device, the electronic device can implement an energy recovery method as provided above.

[0122] Since the electronic device introduced in this embodiment is an electronic device used to implement the information processing method in the embodiment of the present application, based on the information processing method introduced in the embodiment of the present application, a person skilled in the art can understand the specific implementation of the electronic device of the present embodiment and its various variations, so how the electronic device implements the method in the embodiment of the present application is not described in detail here. As long as a person skilled in the art implements the electronic device used by the information processing method in the embodiment of the present application, it belongs to the scope of protection of this application.

[0123] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0124] This embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the heating state, the actual working state of the air compressor 16 is obtained; when the actual working state of the air compressor 16 is the stagnant state, the air compressor stagnation heating sub-circuit is controlled to operate; when the actual working state of the air compressor 16 is the operating state, the air compressor operation heating sub-circuit is controlled to operate. It can be seen that this embodiment uses the heat exchanger 12 to recover the heat generated by the air compressor 16. When the air conditioning circuit needs to use the heat generated by the air compressor 16, the refrigerant in the air conditioning circuit flows through the heat exchanger 12 to improve the utilization rate of the heat of the air compressor 16, while reducing the consumption of on-board electric energy during the heating process of the air conditioning circuit, thereby increasing the vehicle's cruising range. This embodiment couples the air compressor 16 with the air conditioning circuit, effectively utilizes the waste heat of compressed air, improves the heating comfort of the passenger compartment, reduces the energy consumption of the entire vehicle, and thereby increases the cruising range of the vehicle at low temperatures.

[0125] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, 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 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 code.

[0126] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to 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 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 device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0127] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising 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.

[0128] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0129] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other 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 present invention.

[0130] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An energy recovery system, It is characterized in that The system comprises an air conditioning circuit and an air supply circuit, wherein the air conditioning circuit and the air supply circuit realize heat exchange through a heat exchanger; The gas-liquid separation tank, the compressor, the first stop valve, the outdoor heat exchanger, the full-pass throttle valve, the first electronic expansion valve, the evaporator and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form a refrigeration sub-circuit; The gas-liquid separation tank, the compressor, the fourth stop valve, the in-vehicle condenser, the full-pass throttle valve, the outdoor heat exchanger, the second stop valve, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form an air compressor stagnation heating sub-circuit; The gas-liquid separation tank, the compressor, the fourth stop valve, the in-vehicle condenser, the second electronic expansion valve, the heat exchanger, the third stop valve, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form an air compressor operation heating sub-circuit; The full-pass throttle valve is connected in parallel at both ends of the heat exchanger and the second electronic expansion valve; The air supply circuit includes an air filter, an air compressor, the heat exchanger, an intercooler, a humidifier and a fuel cell stack which are connected in sequence.

2. An energy recovery method, It is characterized in that Applied to an energy recovery system as claimed in claim 1, the method comprises: obtaining a target operating state of the air conditioning circuit; When the target operating state is a heating state, obtaining the actual working state of the air compressor; When the actual working state of the air compressor is a stagnant state, controlling the air compressor to stagnate the heating sub-circuit; When the actual working state of the air compressor is the running state, the heating sub-circuit of the air compressor is controlled to run.

3. The method according to claim 2, It is characterized in that When the actual working state of the air compressor is a stagnant state, controlling the air compressor to stagnate the heating sub-circuit operation includes: When the actual working state of the air compressor is a stagnant state, the fourth stop valve, the full-pass throttle valve, and the second stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the second electronic expansion valve, and the third stop valve are controlled to be closed, so that the stagnation heating sub-circuit of the air compressor is in a conducting state.

4. The method according to claim 2, It is characterized in that When the actual working state of the air compressor is the running state, controlling the air compressor to run the heating sub-circuit includes: When the actual working state of the air compressor is the running state, the fourth stop valve, the second electronic expansion valve, and the third stop valve are controlled to be turned on, and the first stop valve, the first electronic expansion valve, the full-pass throttle valve, and the second stop valve are controlled to be closed, so that the air compressor operation heating sub-circuit is in a conducting state.

5. The method according to claim 2, It is characterized in that When the actual working state of the air compressor is the running state, controlling the air compressor to run the heating sub-circuit includes: When the actual working state of the air compressor is the running state, obtaining the target heating temperature of the passenger cabin space corresponding to the air conditioning circuit and the actual operating temperature of the air compressor; The target heating power of the air compression circuit is determined according to the target heating temperature and the actual operating temperature, and the air compressor heating sub-circuit is controlled to operate according to the target heating power.

6. The method according to claim 2, It is characterized in that After obtaining the target operating state of the air conditioning circuit, the method further includes: When the target operating state is a cooling state, the cooling sub-circuit is controlled to operate.

7. The method according to claim 6, It is characterized in that When the target operating state is a refrigeration state, controlling the refrigeration sub-circuit to operate includes: When the target operating state is the cooling state, the fourth stop valve, the second stop valve, the third stop valve, and the second electronic expansion valve are controlled to be closed, and the first stop valve, the full-pass throttle valve, and the first electronic expansion valve are controlled to be turned on, so that the refrigeration sub-circuit is in a conducting state.

8. An energy recovery device, It is characterized in that Applied to an energy recovery system as claimed in claim 1, the device comprises: A state acquisition module, used to acquire a target operating state of the air conditioning circuit; A state acquisition module, used for acquiring the actual working state of the air compressor when the target operating state is a heating state; A first heating module, used for controlling the air compressor stagnation heating sub-circuit to operate when the actual working state of the air compressor is a stagnant state; The second heating module is used to control the heating sub-circuit of the air compressor to operate when the actual working state of the air compressor is the operating state.

9. A controller, It is characterized in that include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute to implement an energy recovery method as described in any one of claims 2 to 7. 10 . A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to implement an energy recovery method as claimed in any one of claims 2 to 7.

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