Heat recovery system, method, device, equipment and medium

Abstract

The invention discloses a heat recovery system, method, device and equipment and a medium. The heat recovery method comprises the steps that the target operation state of an air conditioner loop is obtained; when the target operation state is a refrigeration state, a refrigeration sub-loop and a second sub-loop are controlled to operate; and when the target operation state is a heating state, the heating sub-loop and the first sub-loop are controlled to operate, or the heating sub-loop, the first sub-loop and the second sub-loop are controlled to operate. Heat exchange between the air conditioner loop and the car machine system heat dissipation loop is achieved through the water-cooling condenser, heat of the car machine system is recycled in the heating state, then energy consumption of a vehicle-mounted power source used by the air conditioner equipment is reduced, the heat recovery rate of the car machine system is increased, and the service life of the car machine system is prolonged. Namely, the utilization rate of heat generated during operation of the vehicle machine system is increased, effective utilization of waste heat of the vehicle machine is achieved, the heating comfort of a passenger compartment is improved, the power consumption of the whole vehicle is reduced, and then the endurance mileage of the vehicle at the low temperature is increased.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a heat recovery system, method, device, equipment and medium. Background Art

[0002] With the continuous development of science and technology, cars are becoming more and more intelligent. For example, in addition to supporting traditional radio, music and video playback, and navigation functions, the in-vehicle infotainment system (IVI, or car system) also supports more comprehensive functions such as navigation, multimedia playback, Bluetooth connection, vehicle settings, voice control, and in-vehicle connectivity.

[0003] However, the more powerful the car system is, the higher the heat it generates when it is working. This heat is usually directly lost, resulting in low heat utilization. Therefore, how to improve the utilization rate of the heat generated by the car system during operation is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application solve the technical problem in the prior art that heat from the vehicle computer is directly lost, resulting in low heat utilization, by providing a heat recovery system, method, device, equipment and medium, thereby achieving the technical effect of improving the utilization rate of heat generated by the vehicle computer system during operation.

[0005] In a first aspect, the present application provides a heat recovery system, the system comprising an air conditioning circuit and a vehicle system heat dissipation circuit, the air conditioning circuit and the vehicle system heat dissipation circuit perform heat exchange via a water-cooled condenser;

[0006] The gas-liquid separation tank, the compressor, the first full-pass stop valve, the water-cooled condenser, 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 in-vehicle condenser, the second electronic expansion valve, the water-cooled condenser, the second full-pass stop valve, and the gas-liquid separation tank of the air conditioning circuit are sequentially connected to form a heating sub-circuit;

[0008] The electronic water pump, the water-cooled condenser, the water-cooling component of the vehicle system, the first port of the three-way proportional valve, the third port of the three-way proportional valve and the electronic water pump of the vehicle system heat dissipation circuit are sequentially connected to form a first sub-circuit;

[0009] The electronic water pump, water-cooled condenser, water-cooled components of the vehicle system cooling circuit, the first port of the three-way proportional valve, the second port of the three-way proportional valve, the water-cooled radiator and the electronic water pump are connected in sequence to form a second sub-circuit.

[0010] In a second aspect, the present application provides a heat recovery method, which is applied to a heat recovery system provided in the first aspect, and the method comprises:

[0011] Obtain the target operating state of the air conditioning circuit;

[0012] When the target operating state is a cooling state, controlling the cooling sub-circuit and the second sub-circuit to operate;

[0013] When the target operation state is the heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate.

[0014] Further, when the target operation state is the heating state, controlling the heating sub-circuit and the first sub-circuit to operate, or controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate, includes:

[0015] When the target operating state is the heating state, the target heating temperature corresponding to the air conditioning circuit and the actual operating temperature corresponding to the cooling circuit of the vehicle system are monitored;

[0016] When the actual operating temperature is less than or equal to a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, and the first heating power of the heating sub-circuit is determined according to the actual space temperature of the passenger compartment space corresponding to the heating sub-circuit and the target heating temperature; the first preset threshold is less than the target heating temperature;

[0017] When the actual operating temperature is greater than a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature.

[0018] Further, when the actual operating temperature is greater than the first preset threshold, controlling the heating sub-circuit and the first sub-circuit to operate, or controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate, includes:

[0019] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is greater than a second preset threshold, controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate;

[0020] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is less than or equal to the second preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0021] Further, controlling the operation of the heating sub-circuit, the first sub-circuit, and the second sub-circuit includes:

[0022] Control the second electronic expansion valve and the second full-pass stop valve to be turned on, and control the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates;

[0023] The opening between the first port and the second port of the three-way proportional valve is controlled to be a first opening, the opening between the first port and the third port of the three-way proportional valve is controlled to be a second opening, and the operation of the water-cooled radiator is controlled so that the first sub-circuit and the second sub-circuit are both in a conducting state.

[0024] Further, when the actual operating temperature is greater than the first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, including:

[0025] When the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0026] Further, when the target operating state is the heating state, controlling the heating sub-circuit and the first sub-circuit to operate includes:

[0027] Control the second electronic expansion valve and the second full-pass stop valve to be turned on, and control the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates;

[0028] The first port and the second port of the three-way proportional valve are controlled to be closed, the first port and the third port of the three-way proportional valve are controlled to be connected, and the water-cooled radiator is controlled to be shut down, so that the first sub-circuit is in a conducting state.

[0029] In a third aspect, the present application provides a heat recovery device, which is applied to a heat recovery system as provided above, and the device comprises:

[0030] A state acquisition module, used to obtain the target operating state of the air conditioning circuit;

[0031] A refrigeration control module, used for controlling the operation of the refrigeration sub-circuit and the second sub-circuit when the target operation state is the refrigeration state;

[0032] The heating control module is used to control the operation of the heating sub-circuit and the first sub-circuit, or control the operation of the heating sub-circuit, the first sub-circuit and the second sub-circuit when the target operation state is the heating state.

[0033] Furthermore, the heating control module is used to:

[0034] When the target operating state is the heating state, the target heating temperature corresponding to the air conditioning circuit and the actual operating temperature corresponding to the cooling circuit of the vehicle system are monitored;

[0035] When the actual operating temperature is less than or equal to a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, and the first heating power of the heating sub-circuit is determined according to the actual space temperature of the passenger compartment space corresponding to the heating sub-circuit and the target heating temperature; the first preset threshold is less than the target heating temperature;

[0036] When the actual operating temperature is greater than a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature.

[0037] Furthermore, the heating control module is used to:

[0038] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is greater than a second preset threshold, controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate;

[0039] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is less than or equal to the second preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0040] Furthermore, the heating control module is used to:

[0041] Control the second electronic expansion valve and the second full-pass stop valve to be turned on, and control the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates;

[0042] The opening between the first port and the second port of the three-way proportional valve is controlled to be a first opening, the opening between the first port and the third port of the three-way proportional valve is controlled to be a second opening, and the operation of the water-cooled radiator is controlled so that the first sub-circuit and the second sub-circuit are both in a conducting state.

[0043] Furthermore, the heating control module is used to:

[0044] When the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0045] Furthermore, the heating control module is used to:

[0046] Control the second electronic expansion valve and the second full-pass stop valve to be turned on, and control the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates;

[0047] The first port and the second port of the three-way proportional valve are controlled to be closed, the first port and the third port of the three-way proportional valve are controlled to be connected, and the water-cooled radiator is controlled to be shut down, so that the first sub-circuit is in a conducting state.

[0048] In a fourth aspect, the present application provides a controller, comprising:

[0049] processor;

[0050] a memory for storing processor-executable instructions;

[0051] The processor is configured to execute to implement a heat recovery method as provided in the second aspect.

[0052] 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 a heat recovery method as provided in the second aspect.

[0053] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0054] This embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the cooling state, the cooling sub-circuit and the second sub-circuit are controlled to operate; when the target operating state is the heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate. It can be seen that this embodiment realizes the heat exchange between the air conditioning circuit and the heat dissipation circuit of the vehicle system through the water-cooled condenser, recovers the heat of the vehicle system in the heating state, thereby reducing the energy consumption of the air conditioning equipment using the vehicle power supply, and improving the heat recovery rate of the vehicle system, that is, improving the utilization rate of the heat generated by the vehicle system during operation, realizing the effective utilization of the residual heat of the vehicle, improving the heating comfort of the passenger compartment, reducing the power consumption of the whole vehicle, and thereby improving the cruising range of the car at low temperatures. In the cooling state, the cooling effect of the heat of the vehicle system on the air conditioning circuit is reduced, and the heat of the vehicle system is mainly dissipated by the radiator, so as to minimize the energy consumption of the air conditioning equipment using the vehicle power supply and extend the cruising time of the vehicle power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] 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.

[0056] Figure 1 A schematic diagram of the structure of a heat recovery system provided in this embodiment;

[0057] Figure 2 A schematic flow chart of a heat recovery method provided in this embodiment;

[0058] Figure 3 A schematic diagram of the structure of a heat recovery device provided in this embodiment;

[0059] Figure 4 A schematic diagram of the structure of a controller provided in this embodiment.

[0060] Reference numerals:

[0061] 1-gas-liquid separation tank, 2-compressor, 3-first full-pass stop valve, 4-evaporator, 5-in-vehicle condenser, 6-first electronic expansion valve, 7-second electronic expansion valve, 8-water-cooled condenser, 9-second full-pass stop valve, 10-electronic water pump, 11-fan, 12-water-cooled radiator, 13-three-way proportional valve, 14-vehicle system water cooling components, A-first port, B-second port, C-third port. DETAILED DESCRIPTION

[0062] The embodiments of the present application solve the technical problem in the prior art that heat from a vehicle computer is directly lost, resulting in low heat utilization rate, by providing a heat recovery system, method, device, equipment and medium.

[0063] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0064] This embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the cooling state, the cooling sub-circuit and the second sub-circuit are controlled to operate; when the target operating state is the heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate. It can be seen that this embodiment realizes the heat exchange between the air conditioning circuit and the heat dissipation circuit of the vehicle system through the water-cooled condenser 8, and recovers the heat of the vehicle system in the heating state, thereby reducing the energy consumption of the air conditioning equipment using the vehicle power supply, improving the heat recovery rate of the vehicle system, that is, improving the utilization rate of the heat generated by the vehicle system during operation, realizing the effective utilization of the residual heat of the vehicle, improving the heating comfort of the passenger compartment, reducing the power consumption of the whole vehicle, and thus improving the cruising range of the car at low temperatures. In the cooling state, the cooling effect of the heat of the vehicle system on the air conditioning circuit is reduced, and the heat of the vehicle system is mainly dissipated by the radiator, so as to reduce the energy consumption of the air conditioning equipment using the vehicle power supply as much as possible and extend the cruising time of the vehicle power supply.

[0065] 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.

[0066] 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.

[0067] With the continuous development of science and technology, the degree of intelligence of automobiles is getting higher and higher. For example, in addition to supporting traditional radio functions, music and video playback functions, and navigation functions, the in-vehicle infotainment system (IVI) of automobiles also supports more functional navigation, multimedia playback, Bluetooth connection, vehicle settings, voice control operation, in-vehicle interconnection, etc.

[0068] The specific functions that the vehicle system can achieve include: providing real-time navigation, map display, route planning and other functions, helping users find their destinations and providing navigation guidance, supporting audio and video playback, including listening to the radio, playing music, watching videos, etc. Through Bluetooth technology, drivers and passengers can connect mobile phones or other Bluetooth devices to achieve functions such as hands-free calls, music playback and message reading. Provide various settings and adjustments for the vehicle, such as air conditioning, seat heating, vehicle driving mode, etc. Support voice recognition technology, allowing drivers to control and operate the IVI system through voice commands to improve safety and convenience. Support connection to the Internet, allowing drivers and passengers to obtain real-time traffic information, weather forecasts, online music and applications, etc.

[0069] However, the more powerful the car system is, the higher the heat it generates when it is working. This heat is usually directly lost, resulting in low heat utilization. Therefore, how to improve the utilization rate of the heat generated by the car system during operation is an urgent problem to be solved.

[0070] In order to solve the above problems, this embodiment provides Figure 1 A heat recovery system is shown, the system includes a controller (not shown in Figure 1 ), the air conditioning circuit and the vehicle system cooling circuit, the air conditioning circuit and the vehicle system cooling circuit are heat exchanged through the water-cooled condenser 8;

[0071] The air conditioning circuit includes a gas-liquid separation tank 1, a compressor 2, a first full-pass stop valve 3, a water-cooled condenser 8, a first electronic expansion valve 6, an evaporator 4, an in-vehicle condenser 5, a second electronic expansion valve 7, and a second full-pass stop valve 9;

[0072] The gas-liquid separation tank 1, the compressor 2, the first full-pass stop valve 3, the water-cooled condenser 8, the first electronic expansion valve 6, the evaporator 4, and the gas-liquid separation tank 1 are sequentially connected to form a refrigeration sub-circuit;

[0073] The gas-liquid separation tank 1, the compressor 2, the in-vehicle condenser 5, the second electronic expansion valve 7, the water-cooled condenser 8, the second full-pass stop valve 9, and the gas-liquid separation tank 1 are sequentially connected to form a heating sub-circuit;

[0074] The vehicle system heat dissipation circuit includes an electronic water pump 10, a water-cooled condenser 8, a vehicle system water-cooling component 14, a three-way proportional valve 13 and a water-cooled radiator 12; wherein the vehicle system water-cooling component 14 refers to a water pipe covering the surface of the vehicle system.

[0075] The electronic water pump 10, the water-cooled condenser 8, the vehicle system water-cooling component 14, the first port A of the three-way proportional valve 13, the third port C of the three-way proportional valve 13 and the electronic water pump 10 are sequentially connected to form a first sub-circuit;

[0076] The electronic water pump 10, the water-cooled condenser 8, the vehicle system water-cooling component 14, the first port A of the three-way proportional valve 13, the second port B of the three-way proportional valve 13, the water-cooled radiator 12 and the electronic water pump 10 are sequentially connected to form a second sub-loop.

[0077] 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 temperature sensors PT1 and PT2, and the temperature sensor T for measuring the temperature of the cooling circuit of the vehicle system. The relevant sensors can be set according to actual conditions, and this embodiment does not limit this.

[0078] The controller is electrically connected to the refrigeration sub-circuit, the heating sub-circuit, the first sub-circuit, and the second sub-circuit respectively.

[0079] Specifically, the controller is electrically connected to the following devices respectively:

[0080] The first full-pass stop valve 3, the first electronic expansion valve 6, the second electronic expansion valve 7, the second full-pass stop valve 9, the electronic water pump 10, the fan 11, the three-way proportional valve 13, PT1, PT2, T and other electronic control devices.

[0081] This embodiment couples the air conditioning circuit and the vehicle system heat dissipation circuit through a water-cooled condenser, so that the air conditioning circuit can recover the heat of the vehicle system heat dissipation circuit in the heating state, thereby improving the heat utilization rate of the vehicle system, reducing vehicle energy consumption, and extending the vehicle driving mileage.

[0082] Based on the same inventive concept, this embodiment provides Figure 2A heat recovery method shown is applied to a heat recovery system as provided above, specifically to a controller of a heat recovery system, and the method includes steps S21 to S23.

[0083] Step S21, obtaining the target operating state of the air conditioning circuit;

[0084] Step S22, when the target operating state is the cooling state, controlling the cooling sub-circuit and the second sub-circuit to operate;

[0085] Step S23, when the target operation state is the heating state, controlling the heating sub-circuit and the first sub-circuit to operate, or controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate.

[0086] 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.

[0087] Regarding step S21 , the target operating state of the air-conditioning circuit is acquired.

[0088] 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.

[0089] When the target operating state is a non-operating state, it means that the heat generated by the vehicle system can only be dissipated, so the second sub-loop needs to be controlled to operate. Figure 1 As shown, the first port A and the second port B of the three-way proportional valve 13 are controlled to be connected, the first port A and the third port C of the three-way proportional valve 13 are controlled to be closed, and the water-cooled radiator 12 is controlled to operate so that the second sub-circuit is in a conducting state, so as to achieve the purpose of heat dissipation of the vehicle system and ensure that the vehicle system operates at a suitable temperature.

[0090] When the target operation state is the cooling state, step S22 may be continued to be performed. When the target operation state is the heating state, step S23 may be continued to be performed.

[0091] Regarding step S22, when the target operation state is the cooling state, the cooling sub-circuit and the second sub-circuit are controlled to operate.

[0092] When the target operating state is the cooling state, the cooling sub-circuit and the second sub-circuit are controlled to operate. Figure 1 The following description is given.

[0093] The second electronic expansion valve 7 and the second full-pass stop valve 9 are controlled to be closed, and the first full-pass stop valve 3 and the first electronic expansion valve 6 are controlled to be turned on, so that the refrigeration sub-circuit is in a conducting state. In other words, the cold air generated by the compressor 2 will pass through the first full-pass stop valve 3, the water-cooled condenser 8, the first electronic expansion valve 6, the evaporator 4, and the gas-liquid separation tank 1 in sequence, and then deliver cold air to the passenger cabin space corresponding to the air-conditioning circuit to achieve the purpose of refrigeration.

[0094] In the cooling state, it means that the heat generated by the vehicle system can only be lost and cannot be used for cooling the air conditioning circuit. Therefore, it is necessary to control the operation of the second sub-circuit, such as Figure 1 As shown, specifically, the first port A and the second port B of the three-way proportional valve 13 are controlled to be connected, the first port A and the third port C of the three-way proportional valve 13 are controlled to be closed, and the water-cooled radiator 12 is controlled to operate so that the second sub-circuit is in a conducting state, so as to achieve the purpose of heat dissipation of the vehicle system, ensure that the vehicle system operates at a suitable temperature, reduce the negative impact of the water-cooled condenser on the refrigeration sub-circuit, minimize the refrigeration energy consumption of the refrigeration sub-circuit, and improve the utilization rate of vehicle-mounted power.

[0095] Regarding step S23, when the target operation state is the heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate.

[0096] When the target operation state is the heating state, the heating sub-circuit and the first sub-circuit can be controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit can be controlled to operate. Both methods can transfer the heat generated by the vehicle system to the air-conditioning circuit through the water-cooled condenser, so that the heat of the vehicle system can be recycled and used by the air-conditioning circuit, thereby improving the utilization rate of the heat generated by the vehicle system.

[0097] Specifically, step S23 may include steps S231 to S233.

[0098] Step S231, when the target operating state is the heating state, monitor the target heating temperature corresponding to the air-conditioning circuit and the actual operating temperature corresponding to the cooling circuit of the vehicle system.

[0099] The target heating temperature is set by the user and is the temperature that the user wants the passenger compartment space to eventually reach. The actual operating temperature is the actual temperature of the coolant in the cooling circuit of the vehicle system. Figure 1 The target heating temperature is changed according to the user's adjustment, and the target heating temperature is updated after the user's adjustment of the target heating temperature is detected. The actual operating temperature changes in real time according to the operating load of the vehicle system, and the real-time operating temperature can be collected at a preset frequency, for example, the actual operating temperature is updated every 1 minute.

[0100] When the target operating state is the heating state, the relationship between the actual operating temperature and the first preset threshold is determined. The first preset threshold is used to determine whether the vehicle heat recovery is necessary. The specific value can be set according to the actual situation, for example, it can be 15°C. When the actual operating temperature is less than or equal to the first preset threshold, step S232 can be continued. When the actual operating temperature is greater than the first preset threshold, step S233 can be continued.

[0101] Step S232, when the actual operating temperature is less than or equal to the first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, and the first heating power of the heating sub-circuit is determined according to the actual space temperature of the passenger compartment space (space to be heated) corresponding to the heating sub-circuit and the target heating temperature; the first preset threshold is less than the target heating temperature.

[0102] When the actual operating temperature is less than or equal to the first preset threshold, it means that the heat generated by the vehicle computer is not much, and the air conditioning heating cannot be achieved by relying on the heat of the vehicle computer. Therefore, it is necessary to control the operation of the heating sub-circuit. In this case, the air-conditioning equipment can only determine the first heating power of the heating sub-circuit according to the actual space temperature of the passenger compartment space corresponding to the heating sub-circuit and the target heating temperature. The air-conditioning equipment controls the heating sub-circuit to work according to the first heating power, so that the actual space temperature of the passenger compartment space approaches the target heating temperature, or the actual space temperature is equal to the target heating temperature. Figure 1 As shown, specifically, the second electronic expansion valve 7 and the second full-pass stop valve 9 are controlled to be turned on, and the first electronic expansion valve 6 and the first full-pass stop valve 3 are controlled to be turned off, so that the heating sub-circuit operates.

[0103] When the actual operating temperature is less than or equal to the first preset threshold, it may be that the vehicle has just started and the temperature of the vehicle system heat dissipation circuit has not increased. However, as the vehicle runs longer, the actual operating temperature will become higher and higher. In order to speed up the increase of the actual operating temperature, the water-cooled radiator 12 can be prevented from cooling the vehicle system heat dissipation circuit. Specifically, the first sub-circuit is controlled to operate, that is, the first port A and the second port B of the three-way proportional valve 13 are controlled to be closed, the first port A and the third port C of the three-way proportional valve 13 are controlled to be conductive, and the water-cooled radiator 12 is controlled to be shut down, so that the first sub-circuit is in a conductive state.

[0104] Step S233, when the actual operating temperature is greater than the first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature.

[0105] As time goes by, the actual operating temperature will gradually exceed the first preset threshold. When the actual operating temperature is greater than the first preset threshold, it means that the heat generated by the vehicle system is already large and can be recovered by the air conditioning circuit. At this time, the heating sub-circuit can be controlled to continue working, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature to heat the passenger compartment space.

[0106] When the actual operating temperature is greater than the first preset threshold, it is necessary to determine the relationship between the actual operating temperature and the target heating temperature, which is used to determine the effectiveness of heat recovery of the vehicle system on the one hand, and to adjust the second heating power of the heating sub-circuit in real time on the other hand. The process specifically includes steps S2331-S2333.

[0107] Step S2331: when the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0108] When the actual operating temperature is greater than the first preset threshold but less than or equal to the target heating temperature, it means that the heat of the vehicle system can be completely recovered by the air-conditioning circuit, and will not cause overtemperature to the air-conditioning circuit. At the same time, the air-conditioning equipment is required to use an additional amount of heat to make the passenger compartment space reach the target heating temperature.

[0109] It should be noted that a portion of the heat in the cooling circuit of the vehicle system will be lost in the water cooling pipe. Therefore, the total heat of the vehicle system mentioned above does not include the heat lost in the water cooling pipe. Therefore, when the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit can be controlled to operate.

[0110] Step S2332: when the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is less than or equal to the second preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0111] As time goes by, the actual operating temperature continues to increase. When the actual operating temperature is greater than the target heating temperature, and the difference between the two is less than or equal to the second preset threshold, it means that the heat generated by the vehicle system can provide most of the heat for the air conditioning circuit, so that the temperature in the passenger compartment reaches the target heating temperature. At this time, the heating sub-circuit and the first sub-circuit can be controlled to operate to recover a higher proportion of the heat generated by the vehicle system, which not only reduces the on-board power used by the air conditioning equipment, but also ensures the heating demand of the passenger compartment space on the vehicle, and at the same time can improve the heat recovery rate of the vehicle system. Among them, the second preset threshold can be determined according to the actual needs of the vehicle, for example, it can be 10°C.

[0112] Step S2333: when the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is greater than a second preset threshold, the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate.

[0113] When the actual operating temperature is greater than the target heating temperature, and the difference between the two is greater than the second preset threshold, it means that the heat generated by the vehicle system can basically cover the heat required by the air conditioning circuit, so that the temperature in the passenger compartment reaches the target heating temperature. However, in order to avoid the vehicle system from malfunctioning due to excessive heat generated by the vehicle system, the heating sub-circuit, the first sub-circuit and the second sub-circuit can be controlled to recover a higher proportion of the heat generated by the vehicle system, while ensuring that the water-cooled radiator 12 in the heat dissipation circuit of the vehicle system can take away the excess heat in the circuit, reducing the probability of overheating of the vehicle system. In this way, the heat of the vehicle system basically covers all the energy required for vehicle heating, which not only reduces the on-board electrical energy used by the air conditioning equipment, but also ensures the heating demand of the passenger compartment space on the vehicle, and at the same time can improve the heat recovery rate of the vehicle system.

[0114] Specifically, the operation of the first sub-circuit and the second sub-circuit is controlled, specifically, the opening between the first port A and the second port B of the three-way proportional valve 13 is controlled to be the first opening, the opening between the first port A and the third port C of the three-way proportional valve 13 is controlled to be the second opening, and the operation of the water-cooled radiator 12 is controlled so that the first sub-circuit and the second sub-circuit are both in a conducting state.

[0115] The first opening and the second opening can be adjusted according to the difference between the target heating temperature and the actual operating temperature. When the actual operating temperature is greater than the target heating temperature, the first opening is greater, the second opening is smaller, and the heat dissipation efficiency of the water-cooled radiator 12 needs to be higher, so that more and faster coolant in the cooling circuit of the vehicle system passes through the water-cooled radiator 12 to achieve the purpose of heat dissipation.

[0116] When the actual operating temperature is less than the target heating temperature, the first opening is smaller, the second opening is larger, and the heat dissipation efficiency of the water-cooled radiator 12 needs to be lower, so that the coolant in the cooling circuit of the vehicle system passes through the water-cooled radiator 12 less and slower, reducing the heat dissipation of the water-cooled radiator 12, so that more heat in the cooling circuit of the vehicle system can be recovered by the air conditioning circuit. The heat dissipation efficiency of the water-cooled radiator 12 can be adjusted by controlling the coolant flow rate inside it or the speed of the fan 11.

[0117] In summary, this embodiment obtains the target operating state of the air conditioning circuit; when the target operating state is the cooling state, the cooling sub-circuit and the second sub-circuit are controlled to operate; when the target operating state is the heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate. It can be seen that this embodiment realizes the heat exchange between the air conditioning circuit and the heat dissipation circuit of the vehicle system through the water-cooled condenser 8, recovers the heat of the vehicle system in the heating state, thereby reducing the energy consumption of the air conditioning equipment using the vehicle power supply, improving the heat recovery rate of the vehicle system, that is, improving the utilization rate of the heat generated by the vehicle system during operation, realizing the effective utilization of the residual heat of the vehicle, improving the heating comfort of the passenger compartment, reducing the power consumption of the whole vehicle, and thereby improving the cruising range of the car at low temperatures. In the cooling state, the influence of the heat of the vehicle system on the cooling of the air conditioning circuit is reduced, and the heat of the vehicle system is mainly dissipated by the radiator, so as to reduce the energy consumption of the air conditioning equipment using the vehicle power supply as much as possible and extend the cruising time of the vehicle power supply.

[0118] Based on the same inventive concept, this embodiment provides Figure 3 A heat recovery device shown is applied to a heat recovery system as provided above, and the device comprises:

[0119] A state acquisition module 31 is used to acquire a target operating state of an air conditioning circuit;

[0120] A refrigeration control module 32, used to control the operation of the refrigeration sub-circuit and the second sub-circuit when the target operation state is the refrigeration state;

[0121] The heating control module 33 is used to control the operation of the heating sub-circuit and the first sub-circuit, or control the operation of the heating sub-circuit, the first sub-circuit and the second sub-circuit when the target operation state is the heating state.

[0122] Furthermore, the heating control module 33 is used to:

[0123] When the target operating state is the heating state, the target heating temperature corresponding to the air conditioning circuit and the actual operating temperature corresponding to the cooling circuit of the vehicle system are monitored;

[0124] When the actual operating temperature is less than or equal to a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, and the first heating power of the heating sub-circuit is determined according to the actual space temperature of the passenger compartment space corresponding to the heating sub-circuit and the target heating temperature; the first preset threshold is less than the target heating temperature;

[0125] When the actual operating temperature is greater than a first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature.

[0126] Furthermore, the heating control module 33 is used to:

[0127] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is greater than a second preset threshold, controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate;

[0128] When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is less than or equal to the second preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0129] Furthermore, the heating control module 33 is used to:

[0130] Control the second electronic expansion valve 7 and the second full-pass stop valve 9 to be turned on, and control the first electronic expansion valve 6 and the first full-pass stop valve 3 to be turned off, so that the heating sub-circuit operates;

[0131] The opening between the first port A and the second port B of the three-way proportional valve 13 is controlled to be the first opening, and the opening between the first port A and the third port C of the three-way proportional valve 13 is controlled to be the second opening, and the water-cooled radiator 12 is controlled to operate so that the first sub-circuit and the second sub-circuit are both in a conducting state.

[0132] Furthermore, the heating control module 33 is used to:

[0133] When the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit are controlled to operate.

[0134] Furthermore, the heating control module 33 is used to:

[0135] Control the second electronic expansion valve 7 and the second full-pass stop valve 9 to be turned on, and control the first electronic expansion valve 6 and the first full-pass stop valve 3 to be turned off, so that the heating sub-circuit operates;

[0136] The first port A and the second port B of the three-way proportional valve 13 are controlled to be closed, the first port A and the third port C of the three-way proportional valve 13 are controlled to be connected, and the water-cooled radiator 12 is controlled to be shut down, so that the first sub-circuit is in a conducting state.

[0137] Based on the same inventive concept, this embodiment provides Figure 4 A controller as shown includes:

[0138] Processor 41;

[0139] A memory 42 for storing instructions executable by the processor 41;

[0140] The processor 41 is configured to execute to implement a heat recovery method as provided above.

[0141] Based on the same inventive concept, this embodiment provides a non-transitory 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 a heat recovery method as provided above.

[0142] 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.

[0143] 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.

[0144] 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 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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. A heat recovery system, characterized in that: The system includes an air conditioning circuit and a vehicle system heat dissipation circuit, and heat exchange is performed between the air conditioning circuit and the vehicle system heat dissipation circuit via a water-cooled condenser; The gas-liquid separation tank, the compressor, the first full-pass stop valve, the water-cooled condenser, 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 in-vehicle condenser, the second electronic expansion valve, the water-cooled condenser, the second full-pass stop valve, and the gas-liquid separation tank of the air-conditioning circuit are sequentially connected to form a heating sub-circuit; The electronic water pump of the vehicle system heat dissipation circuit, the water-cooled condenser, the vehicle system water cooling component, the first port of the three-way proportional valve, the third port of the three-way proportional valve and the electronic water pump are sequentially connected to form a first sub-circuit; The electronic water pump of the vehicle system heat dissipation circuit, the water-cooled condenser, the vehicle system water-cooling component, the first port of the three-way proportional valve, the second port of the three-way proportional valve, the water-cooled radiator and the electronic water pump are connected in sequence to form a second sub-circuit.

2. A heat recovery method, characterized in that: Applied to a heat 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 cooling state, controlling the cooling sub-circuit and the second sub-circuit to operate; When the target operation state is a heating state, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate.

3. The method according to claim 2, characterized in that When the target operation state is the heating state, controlling the heating sub-circuit and the first sub-circuit to operate, or controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate, includes: When the target operating state is a heating state, monitoring a target heating temperature corresponding to the air conditioning circuit and an actual operating temperature corresponding to the cooling circuit of the vehicle system; When the actual operating temperature is less than or equal to a first preset threshold, controlling the heating sub-circuit and the first sub-circuit to operate, and determining a first heating power of the heating sub-circuit according to an actual space temperature of the passenger compartment space corresponding to the heating sub-circuit and the target heating temperature; the first preset threshold is less than the target heating temperature; When the actual operating temperature is greater than the first preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate, or the heating sub-circuit, the first sub-circuit and the second sub-circuit are controlled to operate, and the second heating power of the heating sub-circuit is determined according to the actual space temperature, the actual operating temperature and the target heating temperature.

4. The method according to claim 3, characterized in that When the actual operating temperature is greater than the first preset threshold, controlling the heating sub-circuit and the first sub-circuit to operate, or controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate, includes: When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is greater than a second preset threshold, controlling the heating sub-circuit, the first sub-circuit, and the second sub-circuit to operate; When the actual operating temperature is greater than the target heating temperature, and the difference between the actual operating temperature and the target heating temperature is less than or equal to the second preset threshold, the heating sub-circuit and the first sub-circuit are controlled to operate.

5. The method according to any one of claims 2, 3 and 4, characterized in that: The controlling the heating sub-circuit, the first sub-circuit and the second sub-circuit to operate includes: Controlling the second electronic expansion valve and the second full-pass stop valve to be turned on, and controlling the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates; The opening between the first port and the second port of the three-way proportional valve is controlled to be a first opening, the opening between the first port and the third port of the three-way proportional valve is controlled to be a second opening, and the water-cooled radiator is controlled to operate so that the first sub-circuit and the second sub-circuit are both in a conducting state.

6. The method according to claim 3, characterized in that When the actual operating temperature is greater than the first preset threshold, controlling the heating sub-circuit and the first sub-circuit to operate includes: When the actual operating temperature is greater than the first preset threshold and the actual operating temperature is less than or equal to the target heating temperature, the heating sub-circuit and the first sub-circuit are controlled to operate.

7. The method according to any one of claims 2, 3, 4 and 6, characterized in that: The controlling the heating sub-circuit and the first sub-circuit to operate includes: Controlling the second electronic expansion valve and the second full-pass stop valve to be turned on, and controlling the first electronic expansion valve and the first full-pass stop valve to be turned off, so that the heating sub-circuit operates; The first port and the second port of the three-way proportional valve are controlled to be closed, the first port and the third port of the three-way proportional valve are controlled to be connected, and the water-cooled radiator is controlled to be shut down, so that the first sub-circuit is in a conducting state.

8. A heat recovery device, characterized in that: Applicable to a heat recovery system as claimed in claim 1, the device comprising: A state acquisition module, used to acquire a target operating state of the air conditioning circuit; a refrigeration control module, configured to control the operation of the refrigeration sub-circuit and the second sub-circuit when the target operation state is a refrigeration state; The heating control module is used to control the operation of the heating sub-circuit and the first sub-circuit, or control the operation of the heating sub-circuit, the first sub-circuit and the second sub-circuit when the target operation state is the heating state.

9. A controller, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute to implement a heat recovery method as claimed in any one of claims 2 to 7.

10. A non-transitory 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 a heat recovery method as claimed in any one of claims 2 to 7.

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