Thermal management control method and device and storage medium

By obtaining the needs of the crew cabin in the new energy vehicle and adjusting the state of the air -conditioning component, or using the heat heating of the engine of the engine coolant, the problem of high energy consumption of new energy vehicles in terms of heating and fogging has improved the battery life.

CN119348364AActive Publication Date: 2025-01-24CHERY AUTOMOBILE CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202411507387.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-01-24
Estimated Expiration
2044-10-28

AI Technical Summary

Technical Problem

When new energy vehicles have heating demand and fogging risks, air conditioning components and thermal management systems continue to work, resulting in greater energy consumption and reducing the vehicle's endurance.

Method used

By obtaining the needs of the passenger compartment of the target vehicle, regulating the operating status of the air -conditioning component, or using the heat heating of the engine coolant's heat heating of the passenger compartment to achieve energy -saving thermal management control.

Benefits of technology

It effectively meets the anti-fog and heating needs of the passenger compartment, reduces energy consumption, and improves the endurance of new energy vehicles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119348364A_ABST
    Figure CN119348364A_ABST
Patent Text Reader

Abstract

The invention discloses a thermal management control method and device and a storage medium, and relates to the technical field of thermal management. The method comprises the steps that the passenger compartment requirement of a target vehicle is obtained, the passenger compartment requirement refers to the requirement for adjusting the internal environment of the target vehicle, and the passenger compartment requirement comprises the anti-fog requirement and the heating requirement; under the condition that the passenger compartment requirement is the anti-fog requirement, the running state of an air conditioner assembly in the target vehicle is adjusted; and under the condition that the passenger compartment demand is the heating demand and the operation mode of the target vehicle is switched from the first operation mode to the second operation mode, the passenger compartment is heated through heat of cooling liquid of an engine corresponding to the first operation mode, and different engines are used for driving the target vehicle in the first operation mode and the second operation mode. According to the method, a proper strategy is adopted according to different passenger compartment requirements, the passenger compartment requirements are met with low energy consumption, and the cruising ability of the target vehicle is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The embodiments of the present application relate to the field of thermal management technology, and in particular to a thermal management control method, device, equipment and storage medium. Background Art

[0002] With the rapid development of new energy vehicle technology, new energy vehicles not only excel in environmental protection, but also are equipped with increasingly rich functions and technologies, improving users' driving experience and the overall performance of the vehicle.

[0003] In the related art, when there is a risk of fogging, new energy vehicles turn on the compressor in the air-conditioning component and turn on the external circulation to reduce the humidity in the passenger compartment, thereby reducing the risk of fogging of the front windshield. In the related art, when there is a need for heating in new energy vehicles, new energy vehicles heat the passenger compartment by turning on the heater in the thermal management system.

[0004] In related technologies, in order to meet the needs of various passenger compartments, various components in the air-conditioning assembly and thermal management system work continuously, which brings great energy consumption to new energy vehicles and significantly reduces the endurance of new energy vehicles. Summary of the invention

[0005] The embodiments of the present application provide a thermal management control method, device and storage medium. The technical solutions provided by the embodiments of the present application are as follows:

[0006] According to one aspect of an embodiment of the present application, a thermal management control method is provided, the method comprising:

[0007] Acquiring a passenger compartment demand of a target vehicle, wherein the passenger compartment demand refers to a demand for adjusting an internal environment of the target vehicle, and the passenger compartment demand includes an anti-fog demand and a heating demand, wherein the anti-fog demand refers to a demand for reducing a probability of fogging in the passenger compartment, and the heating demand refers to a demand for increasing an interior temperature of the passenger compartment;

[0008] When the passenger compartment requirement is the anti-fogging requirement, adjusting the operating state of the air conditioning component in the target vehicle;

[0009] When the passenger compartment demand is the heating demand and the operating mode of the target vehicle is switched from the first operating mode to the second operating mode, the passenger compartment is heated by utilizing the heat of the coolant of the engine corresponding to the first operating mode, and the first operating mode and the second operating mode use different engines to drive the target vehicle.

[0010] In some embodiments, the thermal management assembly of the target vehicle includes: a high-voltage electric heater, a heat exchanger of a power battery, a first three-way valve, and a second three-way valve;

[0011] The first three-way valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the internal combustion engine, the second valve port is connected to the water inlet of the high-voltage electric heater, and the third valve port is connected to the water outlet of the heating core of the passenger compartment;

[0012] The second three-way valve includes a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the water outlet of the high-voltage electric heater, the fifth valve port is connected to the water inlet of the heating core of the passenger compartment, and the sixth valve port is connected to the heat exchanger of the power battery;

[0013] The high-voltage electric heater comprises a water outlet temperature sensor, and the water outlet temperature sensor is used to measure the temperature of the water outlet of the high-voltage electric heater.

[0014] In some embodiments, the operating mode of the target vehicle includes an internal combustion engine mode and a pure electric mode, the engine includes the internal combustion engine and an electric motor, the internal combustion engine mode refers to a mode in which the internal combustion engine is used to drive the target vehicle, and the pure electric mode refers to a mode in which the electric motor is used to drive the target vehicle;

[0015] The method of heating the passenger compartment by using the heat of the coolant of the engine corresponding to the first operation mode comprises:

[0016] When the first operating mode is the internal combustion engine mode, the first three-way valve is opened to allow the first coolant of the internal combustion engine to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first coolant through the heating core;

[0017] When the first operating mode is the pure electric mode, the first three-way valve is opened to allow the first medium to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first medium through the heating core; wherein the power battery is used to provide electrical energy to the electric motor, and the heat exchanger of the power battery is used to transfer the heat of the second coolant of the power battery to the first medium;

[0018] When the temperature of the water outlet of the high-voltage electric heater is lower than a first threshold, the first three-way valve is closed and the high-voltage electric heater is turned on.

[0019] In some embodiments, adjusting the operating state of the air conditioning component in the target vehicle includes:

[0020] Obtaining the glass temperature, the vehicle interior temperature and the vehicle interior humidity, wherein the glass temperature refers to the temperature inside the front windshield of the target vehicle, the vehicle interior temperature refers to the temperature inside the target vehicle, and the vehicle interior humidity refers to the humidity inside the target vehicle;

[0021] Obtaining a fogging probability of the front windshield according to the glass temperature, the temperature inside the vehicle, and the humidity inside the vehicle, wherein the fogging probability is used to indicate the possibility of fogging of the front windshield;

[0022] When the ambient temperature of the target vehicle is less than an ambient temperature threshold, the operating state of the air conditioning component in the target vehicle is adjusted based on the fogging probability, and the ambient temperature refers to the temperature of the external environment where the target vehicle is located.

[0023] In some embodiments, adjusting the operating state of the air conditioning component in the target vehicle based on the fogging probability includes:

[0024] When the fogging probability is greater than a first fogging threshold, adjusting the operating state of the air conditioning component in the target vehicle to a first operating state;

[0025] When the fogging probability is less than a second fogging threshold, adjusting the operating state of the air conditioning component in the target vehicle to a second operating state;

[0026] Wherein, the first fogging threshold is greater than the second fogging threshold.

[0027] In some embodiments, it is characterized in that the adjusting the operating state of the air conditioning component in the target vehicle to the first operating state includes at least one of the following:

[0028] Turning on a compressor in the air conditioning assembly;

[0029] The air intake ratio of the internal and external circulation of the air conditioning component is adjusted, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0030] In some embodiments, adjusting the operating state of the air conditioning component in the target vehicle to the second operating state includes at least one of the following:

[0031] shutting down the compressor in the air conditioning assembly;

[0032] The air intake ratio of the internal and external circulation of the air conditioning component is adjusted, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0033] In some embodiments, obtaining the fogging probability of the front windshield based on the glass temperature, the temperature inside the vehicle, and the humidity inside the vehicle includes:

[0034] According to the in-vehicle temperature and the in-vehicle humidity, a dew point temperature is obtained, wherein the dew point temperature is a critical temperature value at which fogging begins in the target vehicle;

[0035] The fogging probability of the front windshield is obtained based on the dew point temperature, the humidity in the vehicle, the glass temperature and the temperature in the vehicle.

[0036] According to one aspect of an embodiment of the present application, a thermal management control device is provided, the device comprising:

[0037] a demand acquisition module, used for acquiring a passenger compartment demand of a target vehicle, wherein the passenger compartment demand refers to a demand for adjusting the internal environment of the target vehicle, and the passenger compartment demand includes an anti-fog demand and a heating demand, wherein the anti-fog demand refers to a demand for reducing the probability of fogging in the passenger compartment, and the heating demand refers to a demand for increasing the interior temperature of the passenger compartment;

[0038] an air conditioning adjustment module, for adjusting the operating state of the air conditioning component in the target vehicle when the passenger compartment requirement is the anti-fogging requirement;

[0039] A passenger compartment heating module is used to heat the passenger compartment by utilizing the heat of the coolant of the engine corresponding to the first operating mode when the passenger compartment demand is the heating demand and the operating mode of the target vehicle is switched from the first operating mode to the second operating mode, and the first operating mode and the second operating mode use different engines to drive the target vehicle.

[0040] In some embodiments, the thermal management component of the target vehicle includes: a high-voltage electric heater, a heat exchanger of a power battery, a first three-way valve and a second three-way valve; the first three-way valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the internal combustion engine, the second valve port is connected to the water inlet of the high-voltage electric heater, and the third valve port is connected to the water outlet of the heating core of the passenger compartment; the second three-way valve includes a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the water outlet of the high-voltage electric heater, the fifth valve port is connected to the water inlet of the heating core of the passenger compartment, and the sixth valve port is connected to the heat exchanger of the power battery; the high-voltage electric heater includes a water outlet temperature sensor, and the water outlet temperature sensor is used to measure the temperature of the water outlet of the high-voltage electric heater.

[0041] In some embodiments, the operating mode of the target vehicle includes an internal combustion engine mode and a pure electric mode, the engine includes the internal combustion engine and an electric motor, the internal combustion engine mode refers to a mode in which the internal combustion engine is used to drive the target vehicle, and the pure electric mode refers to a mode in which the electric motor is used to drive the target vehicle; the passenger compartment heating module is used to open the first three-way valve when the first operating mode is the internal combustion engine mode, so that the first coolant of the internal combustion engine flows through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the first coolant is used to heat the passenger compartment by heating the passenger compartment through the heating core the heat of the second coolant of the power battery is used to heat the passenger compartment; when the first operating mode is the pure electric mode, the first three-way valve is opened to allow the first medium to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first medium through the heating core; wherein the power battery is used to provide electrical energy for the electric motor, and the heat exchanger of the power battery is used to transfer the heat of the second coolant of the power battery to the first medium; when the temperature of the water outlet of the high-voltage electric heater is less than a first threshold value, the first three-way valve is closed and the high-voltage electric heater is turned on.

[0042] In some embodiments, the air conditioning adjustment module includes a data acquisition submodule, a probability calculation submodule and an air conditioning adjustment submodule.

[0043] The data acquisition submodule is used to obtain the glass temperature, the in-vehicle temperature and the in-vehicle humidity, wherein the glass temperature refers to the temperature inside the front windshield of the target vehicle, the in-vehicle temperature refers to the temperature inside the target vehicle, and the in-vehicle humidity refers to the humidity inside the target vehicle.

[0044] The probability calculation submodule is used to obtain the fogging probability of the front windshield according to the glass temperature, the temperature inside the vehicle and the humidity inside the vehicle, wherein the fogging probability is used to indicate the possibility of fogging of the front windshield.

[0045] The air conditioning adjustment submodule is used to adjust the operating state of the air conditioning component in the target vehicle based on the fogging probability when the ambient temperature of the target vehicle is less than the ambient temperature threshold, and the ambient temperature refers to the temperature of the external environment where the target vehicle is located.

[0046] In some embodiments, the air conditioning adjustment submodule is used to adjust the operating state of the air conditioning component in the target vehicle to a first operating state when the fogging probability is greater than a first fogging threshold; and to adjust the operating state of the air conditioning component in the target vehicle to a second operating state when the fogging probability is less than a second fogging threshold; wherein the first fogging threshold is greater than the second fogging threshold.

[0047] In some embodiments, the air conditioning regulation submodule is used to turn on the compressor in the air conditioning component; adjust the air intake ratio of the internal and external circulation of the air conditioning component, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0048] In some embodiments, the air conditioning regulation submodule is used to shut down the compressor in the air conditioning component; and adjust the air intake ratio of the internal and external circulation of the air conditioning component, wherein the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0049] In some embodiments, the probability calculation submodule is used to obtain the dew point temperature based on the in-vehicle temperature and the in-vehicle humidity, wherein the dew point temperature is the critical temperature at which fogging begins in the target vehicle; and obtain the fogging probability of the front windshield based on the dew point temperature, the in-vehicle humidity, the glass temperature and the in-vehicle temperature.

[0050] According to one aspect of an embodiment of the present application, a computer device is provided, the computer device comprising a processor and a memory, the memory storing a computer program, the computer program being loaded and executed by the processor to implement the above-mentioned thermal management control method.

[0051] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the above-mentioned thermal management control method.

[0052] According to one aspect of an embodiment of the present application, a computer program product is provided. The computer program product includes a computer program. The computer program is loaded and executed by a processor to implement the above-mentioned thermal management control method.

[0053] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0054] By adjusting the operating status of the air-conditioning components in the target vehicle according to the passenger compartment requirements of the target vehicle, or using the heat of the suspended engine to heat the passenger compartment of the target vehicle to meet the passenger compartment requirements, it is achieved that according to different passenger compartment requirements, appropriate strategies are adopted to meet the passenger compartment requirements with less energy consumption, thereby improving the endurance of the target vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of an implementation environment of a solution provided by an embodiment of the present application;

[0056] Figure 2 is a flow chart of a thermal management control method provided by an embodiment of the present application;

[0057] Figure 3 is a flow chart of a thermal management strategy 1 provided by an embodiment of the present application;

[0058] Figure 4 is a flow chart of a second thermal management strategy provided by an embodiment of the present application;

[0059] Figure 5 is a schematic diagram of a partial heating circuit of a thermal management system provided by an embodiment of the present application;

[0060] Figure 6 is a block diagram of a thermal management control device provided by an embodiment of the present application;

[0061] Figure 7 It is a structural block diagram of a computer device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0062] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0063] Please refer to Figure 1 , which shows a schematic diagram of a solution implementation environment provided by an embodiment of the present application. The solution implementation environment may include: a thermal management system 10.

[0064] The thermal management system 10 is used to perform thermal management on various components in the target vehicle to keep them in optimal working condition. In some embodiments, thermal management includes at least one of the following: passenger compartment thermal management, engine thermal management, battery thermal management, etc., and may also include other types of thermal management, which is not limited in the embodiments of the present application. Passenger compartment thermal management refers to the process of adapting to the external environment and passenger needs through temperature control, air conditioning and humidity control. In some embodiments, passenger compartment thermal management may include but is not limited to: cooling, heating, anti-fogging, etc. Engine thermal management refers to the process of ensuring that the engine can operate in the best condition by controlling and adjusting the temperature inside or around the engine. Battery thermal management refers to the process of ensuring that the power battery can work safely by controlling the temperature around the power battery.

[0065] The thermal management system 10 includes: an air conditioning component 11 and a thermal management component 12. In some embodiments, the air conditioning component 11 is used to perform the above-mentioned passenger compartment thermal management. In some embodiments, the air conditioning component 11 includes at least one of the following: a compressor, a condenser, an evaporator, a blower, a heating core, a sensor, a three-way valve, an air conditioning controller, etc., and may also include other components, which are not limited in the embodiments of the present application. In some embodiments, the thermal management component 12 is used to perform at least one of the following: passenger compartment thermal management, engine thermal management, and battery thermal management. In some embodiments, the thermal management component 12 may include at least one of the following: a radiator, a coolant, a fan, a water pump, a thermal management controller, a heat exchanger, a three-way valve, a heater, a sensor, etc., and may also include other components, which are not limited in the embodiments of the present application.

[0066] In some embodiments, the air conditioning component 11 and the thermal management component 12 can work together to perform thermal management of the passenger compartment.

[0067] In some embodiments, the implementation environment of the solution may further include: a control device 20. The control device 20 is used to control, detect and adjust various systems in the target vehicle (such as the thermal management system 10). For example, the control device 20 may be a central control system of the target vehicle. In some embodiments, the control device 20 may accurately control various systems according to instructions input by the user.

[0068] In some embodiments, the thermal management system 10 and the control device 20 are provided in a target vehicle.

[0069] Electrical connection refers to the electrical contact and current transmission path established between electrical devices or components through cables, wires or other conductive materials. The electrical connection can be a circuit connection or a wireless connection, which is not specifically limited. If the electrical connection is a circuit connection, the connection method can be a cable connection. If the electrical connection is a wireless connection, the connection method can be an infrared connection, a wireless local area network, and a WiFi (Wireless Fidelity) network connection. In the embodiments of the present application, this is not specifically limited.

[0070] Please refer to Figure 2 , which shows a flow chart of a thermal management control method provided by an embodiment of the present application. The execution subject of each step of the method may be a computer device, for example, the computer device may be Figure 1 The thermal management system 10 in the implementation environment of the solution shown. The method may include at least one of the following steps (210-230):

[0071] Step 210, obtaining the passenger compartment demand of the target vehicle, the passenger compartment demand refers to the demand for adjusting the internal environment of the target vehicle, the passenger compartment demand includes anti-fog demand and heating demand, the anti-fog demand refers to the demand for reducing the probability of fogging in the passenger compartment, and the heating demand refers to the demand for increasing the interior temperature of the passenger compartment.

[0072] The passenger compartment requirements refer to requirements related to the internal environment of the target vehicle. In some embodiments, the passenger compartment requirements are related to at least one of the following environmental factors: temperature, humidity, air quality, wind volume, wind direction, etc., and may also include other environmental factors, which are not limited in the embodiments of the present application. In some embodiments, the passenger compartment requirements are determined by at least one of the following information: user input information, sensor data, external environment data, etc., and may also include other information, which are not limited in the embodiments of the present application.

[0073] The user input information is used to indicate the needs or instructions that the user transmits to the target vehicle. In some embodiments, the user inputs the user input information to the target vehicle through a control device. In some embodiments, the user can input the user input information in at least one of the following ways: an operation panel, a physical button, voice control, etc., and other ways may also be included, which are not limited in the embodiments of the present application. Optionally, the operation panel may be an operation panel displayed on the central control system, or an operation panel displayed on a terminal device connected to the target vehicle. Among them, the terminal device may be at least one of the following: a mobile phone, a tablet computer, a PC (Personal Computer), a wearable device, etc., and other terminal devices may also be included, which are not limited in the embodiments of the present application. Among them, the terminal device may be connected to the target vehicle by wire, or may be connected to the target vehicle by wireless, which are not limited in the embodiments of the present application.

[0074] Sensor data refers to data collected from various sensors in the target vehicle. In some embodiments, the types of sensors may include, but are not limited to, temperature sensors, humidity sensors, light intensity sensors, gravity sensors, pressure sensors, etc., and may also include other types of sensors, which are not limited in the embodiments of the present application.

[0075] External environment data refers to data related to the external environment of the target vehicle. In some embodiments, the external environment data may include, but is not limited to: external temperature data, external humidity data, road condition data, rainfall data, air pressure data, external air quality data, wind speed data, wind direction data, etc., and may also include other external environment data, which is not limited in the embodiments of the present application.

[0076] The heating demand refers to the demand for heating the passenger compartment of the target vehicle. In some embodiments, the heating demand is a user sending user input information about a heating instruction to the target vehicle to make a heating demand to the target vehicle. Exemplarily, the user selects a heating function and sets a target temperature through a control panel displayed by the central control system, and the thermal management system controls the target vehicle to heat the passenger compartment to the target temperature.

[0077] The anti-fog requirement refers to the requirement to reduce the risk of fogging of the glass in the passenger compartment. In some embodiments, the glass in the passenger compartment may include but is not limited to: front windshield, rearview mirror, window glass, etc., and may also include other glass in the passenger compartment, which is not limited in the embodiments of the present application. In some embodiments, it is determined whether there is an anti-fog requirement in the passenger compartment based on temperature sensor data, humidity sensor data and external environment data. In some embodiments, it is determined whether there is an anti-fog requirement in the passenger compartment based on user input information.

[0078] In some embodiments, the passenger compartment requirements may also include at least one of the following: cooling requirements, ventilation requirements, sunshade requirements, etc., and may also include other passenger compartment requirements, which are set by relevant technical personnel according to actual needs, and the embodiments of the present application are not limited to this. Cooling requirements refer to the requirements to reduce the temperature of the passenger compartment. Ventilation requirements refer to the requirements to improve the air quality of the passenger compartment. Sunshade requirements refer to the requirements to reduce direct sunlight in the passenger compartment.

[0079] Step 220, when the passenger compartment requirement is an anti-fogging requirement, adjust the operating state of the air conditioning component in the target vehicle.

[0080] The operating status of the air conditioning assembly is used to indicate the working conditions of each component in the air conditioning assembly. In some embodiments, the various components in the air conditioning assembly are adjusted to achieve functions such as heating, cooling, and ventilation. The anti-fogging requirements are met by adjusting the operating status of the air conditioning assembly.

[0081] In some embodiments, the glass temperature, the interior temperature and the interior humidity are obtained, where the glass temperature refers to the temperature on the inside of the front windshield of the target vehicle, the interior temperature refers to the temperature inside the target vehicle, and the interior humidity refers to the humidity inside the target vehicle; based on the glass temperature, the interior temperature and the interior humidity, the fogging probability of the front windshield is obtained, and the fogging probability is used to indicate the possibility of fogging of the front windshield; when the ambient temperature of the target vehicle is less than the ambient temperature threshold, the operating state of the air-conditioning component in the target vehicle is adjusted based on the fogging probability, and the ambient temperature refers to the temperature of the external environment in which the target vehicle is located.

[0082] In some embodiments, the air conditioning assembly includes at least one of the following: a humidity sensor, a windshield temperature sensor, an in-vehicle temperature sensor, and may also include other sensors, which are not limited in the embodiments of the present application. A humidity sensor is a sensing device that detects ambient humidity. In an embodiment of the present application, the humidity sensor is used to detect the humidity inside the target vehicle. A windshield temperature sensor is a sensing device that detects the temperature of the windshield. In an embodiment of the present application, a windshield temperature sensor is a sensing device that detects the temperature of the inside of the windshield. An in-vehicle temperature sensor is a sensing device that detects the temperature inside the target vehicle. In an embodiment of the present application, an in-vehicle temperature sensor is used to detect the temperature of the passenger compartment of the target vehicle.

[0083] In some embodiments, the air conditioning assembly includes an air conditioning controller, which is used to control the working state of each component in the air conditioning assembly. In some embodiments, the air conditioning controller calculates the fogging probability of the front windshield by analyzing the glass temperature, the temperature inside the vehicle, and the humidity inside the vehicle; and controls the working state of each component in the air conditioning assembly based on the fogging probability of the front windshield.

[0084] In some embodiments, the glass temperature and the humidity in the vehicle are transmitted to the air conditioning controller via a bus. For example, after the windshield temperature sensor collects the glass temperature and the humidity sensor collects the humidity in the vehicle, they are transmitted to the BCM (Body Control Module) via the LIN (Local Interconnect Network) bus, and the BCM transmits it to the air conditioning controller via the CAN (Controller Area Network) bus.

[0085] In some embodiments, the dew point temperature is obtained based on the temperature and humidity inside the vehicle, and the dew point temperature is the temperature critical value at which fogging begins in the target vehicle; based on the dew point temperature, the humidity inside the vehicle, the glass temperature and the temperature inside the vehicle, the fogging probability of the front windshield is obtained.

[0086] The dew point temperature refers to the critical temperature at which water vapor in the air begins to condense into liquid water during the cooling process. When the water vapor in the air reaches saturation, that is, when the humidity in the car reaches 100%, the excess water vapor will condense to form dew, and the dew point temperature is the critical temperature at which this process occurs.

[0087] For example, the dew point temperature T d It can be calculated by the following formula:

[0088]

[0089] Among them, T is the temperature inside the car, and RH is the humidity inside the car.

[0090] In some embodiments, a fogging probability model is constructed regarding the dew point temperature, the humidity inside the vehicle, the glass temperature, and the temperature inside the vehicle; through the fogging probability model, the fogging probability of the front windshield is obtained based on the dew point temperature, the humidity inside the vehicle, the glass temperature, and the temperature inside the vehicle. Among them, the fogging probability model is used to predict the fogging risk of the front windshield under different environmental conditions. Optionally, the fogging probability model can be a mathematical model. For example, the fogging probability model can be a linear model or an exponential model, or it can be other mathematical models, which is not limited in the embodiments of the present application. It should be noted that the embodiments of the present application do not limit the method for calculating the fogging probability based on the dew point temperature, the humidity inside the vehicle, the glass temperature, and the temperature inside the vehicle.

[0091] The ambient temperature refers to the temperature of the external air around the target vehicle, also known as the outside temperature or the atmospheric temperature. The ambient temperature threshold refers to the ambient temperature at which fogging is likely to occur, which is pre-set by relevant technicians based on experiments, calibration data or predictions, etc., and is not limited in the embodiments of the present application.

[0092] When the ambient temperature is less than 15 degrees, the car does not need cooling effect, but in this ambient temperature range, the front windshield is easy to fog up. In the related art, in order to prevent fogging, no matter how many passengers are in the target vehicle or how much humidity is in the vehicle, the compressor needs to be turned on all the time to dehumidify and avoid fogging. The compressor is a load with high power consumption. If the compressor is kept on, the target vehicle will consume a lot of energy due to the compressor.

[0093] In some embodiments, when the probability of fogging is greater than a first fogging threshold, the operating state of the air-conditioning component in the target vehicle is adjusted to a first operating state; when the probability of fogging is less than a second fogging threshold, the operating state of the air-conditioning component in the target vehicle is adjusted to a second operating state; wherein the first fogging threshold is greater than the second fogging threshold.

[0094] The first operating state of the air conditioning component refers to an air conditioning operating mode for preventing or eliminating fogging of the front windshield. The second operating state of the air conditioning component refers to an energy-saving air conditioning operating mode under the anti-fogging requirement.

[0095] The first fogging threshold refers to the threshold value for the air conditioning component to enter the first operating state. The second fogging threshold refers to the threshold value for the air conditioning component to enter the second operating state. In some embodiments, the first fogging threshold and the second fogging threshold are parameters obtained by relevant technicians after calibration based on the target vehicle. Due to the different space sizes and airflow fields of different vehicles, the first fogging threshold and the second fogging threshold corresponding to different models will also be different.

[0096] Step 230, when the passenger compartment demand is a heating demand and the operating mode of the target vehicle is switched from the first operating mode to the second operating mode, the passenger compartment is heated using the heat of the coolant of the engine corresponding to the first operating mode, and the first operating mode and the second operating mode use different engines to drive the target vehicle.

[0097] The operating mode of the target vehicle refers to the driving mode of the target vehicle under different working conditions. The first operating mode and the second operating mode of the target vehicle correspond to different driving modes, and different power sources are used to drive the target vehicle. The power source refers to the energy source that drives the target vehicle, which may include but is not limited to: internal combustion engine, electric motor, power battery, hybrid power, solar energy, etc., and may also include other power sources, which are not limited in the embodiments of the present application.

[0098] In some embodiments, the operating mode of the target vehicle includes an internal combustion engine mode and a pure electric mode, the engine includes an internal combustion engine and an electric motor, the internal combustion engine mode refers to a mode in which the internal combustion engine is used to drive the target vehicle, and the pure electric mode refers to a mode in which the electric motor is used to drive the target vehicle.

[0099] Internal combustion engine mode means that the target vehicle is mainly powered by an internal combustion engine to drive the target vehicle. An internal combustion engine (ICE), also known as a fuel engine, is an engine that generates energy by burning fuel to drive a vehicle. In some embodiments, the types of internal combustion engines may include, but are not limited to: gasoline engines, diesel engines, turbocharged engines, two-stroke engines, and may also include other types of internal combustion engines, which are not limited in the embodiments of the present application. Pure electric mode means that the target vehicle is powered by an electric motor to drive the target vehicle. An electric motor is an engine that converts electrical energy into mechanical energy to drive the target vehicle.

[0100] In some embodiments, the first operating mode can be an internal combustion engine mode or a pure electric mode. Correspondingly, the second operating mode can be a pure electric mode or an internal combustion engine mode. That is to say, when the target vehicle switches its operating mode, the engine corresponding to the switched operating mode stops operating, but the heat generated during operation has not disappeared. The remaining heat of the engine corresponding to the switched operating mode can be used to heat the passenger compartment, thereby reducing the heating power consumption of the heating core or the high-voltage electric heater, thereby achieving energy saving.

[0101] In summary, the technical solution provided in the embodiments of the present application adjusts the operating status of the air-conditioning components in the target vehicle according to the passenger compartment requirements of the target vehicle, or uses the heat of the suspended engine to heat the passenger compartment of the target vehicle to meet the passenger compartment requirements. It realizes the use of appropriate strategies according to different passenger compartment requirements, meets the passenger compartment requirements with less energy consumption, and improves the endurance of the target vehicle.

[0102] The following introduces the thermal management strategy for anti-fog needs.

[0103] In some embodiments, the first operating state and the second operating state of the air conditioning component can be implemented based on thermal management strategy one and / or thermal management strategy two.

[0104] 1. Thermal Management Strategy 1

[0105] In some embodiments, when the air conditioning component enters a first operating state, the compressor in the air conditioning component is turned on; when the air conditioning component enters a second operating state, the compressor in the air conditioning component is turned off.

[0106] The compressor is the device in the air conditioning unit that is used for cooling.

[0107] For example, please refer to Figure 3 , which shows a flow chart of thermal management strategy 1 provided by an embodiment of the present application, in which the glass temperature and the humidity in the car are transmitted to the air-conditioning controller through the bus. Exemplarily, after the windshield temperature sensor completes the acquisition of the glass temperature and the humidity sensor completes the acquisition of the humidity in the car, they are transmitted to the BCM through the LIN bus, and the BCM transmits it to the air-conditioning controller through the CAN bus. After the in-car temperature sensor completes the acquisition of the in-car temperature, it transmits the in-car temperature to the air-conditioning controller. The air-conditioning controller obtains the fogging probability of the front windshield based on the glass temperature, the in-car temperature and the in-car humidity. When the fogging probability is greater than the first fogging threshold, it indicates that the front windshield has a risk of fogging, and the air-conditioning component enters the first operating mode and turns on the compressor. When the fogging probability is less than the second fogging threshold, it indicates that there is no risk of fogging on the front windshield, and the air-conditioning component enters the second operating mode and turns off the compressor.

[0108] Thermal management strategy 1 determines whether there is a risk of fogging based on the probability of fogging. When there is a risk of fogging, the compressor is turned on. After the compressor is turned on, the humidity in the car decreases. When the humidity in the car decreases to a level where there is no risk of fogging, the compressor is turned off. Turning the compressor on and off based on the probability of fogging means that the compressor does not need to be turned on all the time, greatly reducing the energy consumption caused by the compressor.

[0109] 2. Thermal Management Strategy 2

[0110] When the ambient temperature is less than 15 degrees, the target vehicle has a heating demand, but in this ambient temperature range, it is easy to fog. In the relevant technology, in order to prevent fogging, the air conditioning component adopts a full external circulation method. However, if the air conditioning component adopts a full external circulation method, since the air outside the target vehicle is relatively cold, a large amount of cold air enters the target vehicle, which is not conducive to the increase of the temperature inside the vehicle.

[0111] In some embodiments, the air intake ratio of the internal and external circulation of the air conditioning component is adjusted.

[0112] In some embodiments, the air conditioning assembly further comprises an outer circulation damper and an inner circulation damper. In some embodiments, the air intake ratio of the inner and outer circulation of the air conditioning assembly is adjusted by controlling the opening size of the outer circulation damper and the inner circulation damper.

[0113] In some embodiments, when the air conditioning component enters the first operating state, the air intake ratio of the internal and external circulation of the air conditioning component is adjusted to a defogger air intake ratio; when the air conditioning component enters the second operating state, the air intake ratio of the internal and external circulation of the air conditioning component is adjusted to an energy-saving air intake ratio.

[0114] The demisting air intake ratio is a preset air intake ratio of the internal and external circulation of the air-conditioning component in the first operating state. For example, the demisting air intake ratio can be 100% for the external circulation. The energy-saving air intake ratio is a preset air intake ratio of the internal and external circulation of the air-conditioning component in the second operating state. For example, the energy-saving air intake ratio: the external circulation is 50%, and the internal circulation is 50%. For example, the energy-saving air intake ratio: the external circulation is 40%, and the internal circulation is 60%. In some embodiments, the proportion of the external circulation in the demisting air intake ratio is higher than the proportion of the external circulation in the energy-saving air intake ratio. It should be noted that the above-mentioned demisting air intake ratio and the energy-saving air intake ratio are only exemplary, and relevant technical personnel can set them according to needs, and the embodiments of the present application are not limited to this.

[0115] For example, please refer to Figure 4, which shows a flow chart of thermal management strategy 2 provided by an embodiment of the present application. After the target vehicle is started, the air intake ratio of the internal and external circulation is set to the energy-saving air intake ratio. The glass temperature and the humidity in the car are transmitted to the air conditioning controller through the bus. Exemplarily, after the front windshield temperature sensor completes the acquisition of the glass temperature, the humidity sensor completes the acquisition of the humidity in the car, and transmits it to the BCM through the LIN bus, and the BCM transmits it to the air conditioning controller through the CAN bus. After the in-car temperature sensor completes the acquisition of the in-car temperature, the in-car temperature is transmitted to the air conditioning controller. The air conditioning controller obtains the fogging probability of the front windshield according to the glass temperature, the in-car temperature and the in-car humidity. When the fogging probability is greater than the first fogging threshold, it means that the front windshield has a risk of fogging, then the air conditioning component enters the first operating mode, and the air intake ratio of the internal and external circulation of the air conditioning component is set to the defogging air intake ratio. When the fogging probability is less than the second fogging threshold, it means that there is no risk of fogging on the front windshield, then the air conditioning component enters the second operating mode, and the air intake ratio of the internal and external circulation of the air conditioning component is set to the energy-saving air intake ratio.

[0116] When there is no risk of fogging on the front windshield, thermal management strategy two uses a mixed internal and external circulation method to intake air. When there is a risk of fogging, full external circulation is used to intake air, which improves the efficiency of heating the passenger compartment.

[0117] The following introduces the thermal management strategy for heating needs.

[0118] In some embodiments, the thermal management component of the target vehicle includes: a high-voltage electric heater, a heat exchanger of a power battery, a first three-way valve and a second three-way valve; the first three-way valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the internal combustion engine, the second valve port is connected to the water inlet of the high-voltage electric heater, and the third valve port is connected to the water outlet of the heating core of the passenger compartment; the second three-way valve includes a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the water outlet of the high-voltage electric heater, the fifth valve port is connected to the water inlet of the heating core of the passenger compartment, and the sixth valve port is connected to the heat exchanger of the power battery; the high-voltage electric heater includes a water outlet temperature sensor, and the water outlet temperature sensor is used to measure the temperature of the water outlet of the high-voltage electric heater.

[0119] A high voltage heater (HVH) is a device that provides heat energy through the high voltage electrical system of a target vehicle. In some embodiments, the high voltage heater is powered by direct current high voltage electricity. In some embodiments, the high voltage heater includes at least one of the following functions: passenger compartment heating, power battery heating, drive system temperature control, etc., and may also include other functions, which are not limited in the embodiments of the present application.

[0120] The power battery is a power source used to provide a power source for the target vehicle. The power battery can provide electrical energy to the electric motor to drive the target vehicle. The heat exchanger of the power battery refers to a device that transfers the heat of the coolant in the power battery to other media. In some embodiments, the type of heat exchanger may include but is not limited to: liquid-cooled heat exchanger, air-cooled heat exchanger, phase change material heat exchanger, etc., and may also include other specified heat exchangers, which are not limited in the embodiments of the present application.

[0121] A three-way valve is a valve used for fluid control, and its main function is to change the flow direction of the fluid or distribute the flow of the fluid. The three-way valve has three valve ports, including an inlet and two outlets. In some embodiments, the types of three-way valves may include but are not limited to: a three-way electromagnetic water valve, an electric three-way valve, a manual three-way valve, etc., and may also include other types of three-way valves, which are not limited in the embodiments of the present application.

[0122] 3. Thermal Management Strategy 3

[0123] In some embodiments, various components in the thermal management assembly are connected via pipes.

[0124] (I) Switching from internal combustion engine mode to pure electric mode

[0125] In some embodiments, when the first operating mode is the internal combustion engine mode, the first three-way valve is opened to allow the first coolant of the internal combustion engine to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by utilizing the heat of the first coolant through the heating core.

[0126] The first coolant refers to a liquid used to cool the internal combustion engine, and is used to absorb and take away the excess heat generated when the internal combustion engine is running. Optionally, the type of the first coolant may include at least one of the following: water, inorganic acid salt coolant, organic acid salt coolant, mixed coolant, and may also include other types, which are not limited in the embodiments of the present application.

[0127] A heating core is a device used to heat liquid or gas to provide a heating function.

[0128] For example, please refer to Figure 5, which shows a schematic diagram of a partial heating circuit of a thermal management system provided by an embodiment of the present application. When the operating mode of the target vehicle is changed from the internal combustion engine mode to the pure electric mode, the internal combustion engine 510 is turned off and the first three-way valve 520 is opened. The first three-way valve 520 includes three valve ports, namely the first valve port 521, the second valve port 522 and the third valve port 523. After the first three-way valve 520 is opened, the first coolant flows out of the internal combustion engine 510, flows into the first three-way valve 520 through the first valve port 521, and then flows out from the second valve port 522. After the first coolant flows out of the first three-way valve 520, it flows into the second three-way valve 530 through the fourth valve port 531 of the second three-way valve 530, and then flows out from the fifth valve port 532 and the sixth valve port 533 of the second three-way valve 530. The first coolant flowing out of the fifth valve port 532 reaches the heating core 540, and the heating core 540 uses the heat of the first coolant to heat the passenger compartment.

[0129] (II) Switching from pure electric mode to internal combustion engine mode

[0130] In some embodiments, when the first operating mode is the pure electric mode, the first three-way valve is opened to allow the first medium to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by utilizing the heat of the first medium through the heating core; wherein the power battery is used to provide electrical energy to the electric motor, and the heat exchanger of the power battery is used to transfer the heat of the second coolant of the power battery to the first medium.

[0131] The second coolant is a liquid used to ensure the safe operation of the power battery. In some embodiments, the type of the second coolant may include, but is not limited to: water-based coolant, oil-based coolant, and phase change material coolant, and may also include other types, which are not limited in the embodiments of the present application. The first medium refers to the medium in the pipe of the heating circuit of the thermal management system, which is used to transfer heat.

[0132] For example, please refer to Figure 5 , when the operation mode of the target vehicle is changed from pure electric mode to internal combustion engine mode, the motor is turned off and the first three-way valve 520 is opened. The second coolant in the power battery 550 that provides electric energy for the motor flows into the heat exchanger 560 of the power battery. The heat exchanger 560 transfers the heat of the second coolant to the first medium, and the first medium flows into the first three-way valve 520 through the third valve port 523 of the first three-way valve 520, and then flows out through the second valve port 522 of the first three-way valve 520. After the first medium flows out of the first three-way valve 520, it flows into the second three-way valve 530 through the fourth valve port 531 of the second three-way valve 530, and then flows out from the fifth valve port 532 and the sixth valve port 533 of the second three-way valve 530. The first coolant flowing out of the fifth valve port 532 reaches the heating core 540, and the heating core 540 uses the heat of the first medium to heat the passenger compartment.

[0133] In some embodiments, when the temperature of the water outlet of the high-voltage electric heater is less than the first threshold, the first three-way valve is closed and the high-voltage electric heater is turned on. In some embodiments, when the temperature of the water outlet of the high-voltage electric heater is less than the first threshold, the high-voltage electric heater is in an off state.

[0134] In some embodiments, a water outlet temperature sensor is provided at the water outlet of the high-voltage electric heater, and the water outlet temperature sensor is used to detect the temperature of the liquid flowing out of the high-voltage electric heater.

[0135] When the target vehicle switches the operation mode, the residual heat of the coolant of the suspended engine is used to heat the passenger compartment. When the water outlet temperature of the high-voltage electric heater is lower than the first threshold, the high-voltage electric heater is turned on and the first three-way valve is closed at the same time to prevent the cold engine coolant from participating in the circulation, reduce the power output of the high-voltage electric heater, and achieve the purpose of energy saving.

[0136] In some embodiments, hot water heated by the high-voltage electric heater enters the heater core of the passenger compartment for heat exchange and heating.

[0137] In some embodiments, the thermal management system further includes a blower, which is used to promote the flow of air or other gases. For example, in the thermal management system, the blower is used to deliver cooled or heated air to the passenger compartment.

[0138] Case 1: The heating power of HVH is very large, the outlet water temperature is very high, the water temperature entering the heater core inside HVAC is very high, but the air volume of the blower inside HVAC is small.

[0139] Case 2: The heating power of HVH is smaller than that of Case 1, the outlet water temperature is lower than that of Case 1, the water temperature entering the heater core inside HVAC is lower than that of Case 1, but the air volume of the blower inside HVAC is larger than that of Case 1.

[0140] The strategy of Case 2 has higher heat exchange efficiency than that of Case 1, and HVH is a high-power electrical equipment. Increasing the HVH power to increase the heating water temperature while reducing the blower air volume consumes more energy than reducing the HVH power to reduce the water temperature while increasing the blower air volume. Therefore, the Case 2 solution is more energy-efficient while achieving the same heating effect.

[0141] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0142] Please refer to Figure 6, which shows a block diagram of a thermal management control device provided by an embodiment of the present application. The device has the functions of implementing the above examples, and the functions can be implemented by hardware, or by hardware executing corresponding software. The device can be the thermal management system 10 introduced above, or it can be set in the thermal management system 10. Figure 6 As shown, the device 600 may include a demand acquisition module 610 , an air conditioning adjustment module 620 and a passenger compartment heating module 630 .

[0143] The demand acquisition module 610 is used to obtain the passenger compartment demand of the target vehicle, wherein the passenger compartment demand refers to the demand for adjusting the internal environment of the target vehicle, and the passenger compartment demand includes an anti-fog demand and a heating demand. The anti-fog demand refers to the demand for reducing the probability of fogging in the passenger compartment, and the heating demand refers to the demand for increasing the interior temperature of the passenger compartment.

[0144] The air conditioning adjustment module 620 is used to adjust the operating state of the air conditioning component in the target vehicle when the passenger compartment requirement is the anti-fog requirement.

[0145] The passenger compartment heating module 630 is used to heat the passenger compartment by utilizing the heat of the coolant of the engine corresponding to the first operating mode when the passenger compartment demand is the heating demand and the operating mode of the target vehicle is switched from the first operating mode to the second operating mode, and the first operating mode and the second operating mode use different engines to drive the target vehicle.

[0146] In some embodiments, the thermal management component of the target vehicle includes: a high-voltage electric heater, a heat exchanger of a power battery, a first three-way valve and a second three-way valve; the first three-way valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the internal combustion engine, the second valve port is connected to the water inlet of the high-voltage electric heater, and the third valve port is connected to the water outlet of the heating core of the passenger compartment; the second three-way valve includes a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the water outlet of the high-voltage electric heater, the fifth valve port is connected to the water inlet of the heating core of the passenger compartment, and the sixth valve port is connected to the heat exchanger of the power battery; the high-voltage electric heater includes a water outlet temperature sensor, and the water outlet temperature sensor is used to measure the temperature of the water outlet of the high-voltage electric heater.

[0147] In some embodiments, the operating mode of the target vehicle includes an internal combustion engine mode and a pure electric mode, the engine includes the internal combustion engine and an electric motor, the internal combustion engine mode refers to a mode in which the internal combustion engine is used to drive the target vehicle, and the pure electric mode refers to a mode in which the electric motor is used to drive the target vehicle; the passenger compartment heating module 610 is used to open the first three-way valve when the first operating mode is the internal combustion engine mode, so that the first coolant of the internal combustion engine flows through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the first coolant is heated by the heating core using the first coolant the heat of the second coolant of the power battery is used to heat the passenger compartment; when the first operating mode is the pure electric mode, the first three-way valve is opened to allow the first medium to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first medium through the heating core; wherein the power battery is used to provide electrical energy to the electric motor, and the heat exchanger of the power battery is used to transfer the heat of the second coolant of the power battery to the first medium; when the temperature of the water outlet of the high-voltage electric heater is less than a first threshold value, the first three-way valve is closed and the high-voltage electric heater is turned on.

[0148] In some embodiments, the air conditioning adjustment module 620 includes a data acquisition submodule, a probability calculation submodule and an air conditioning adjustment submodule.

[0149] The data acquisition submodule is used to obtain the glass temperature, the in-vehicle temperature and the in-vehicle humidity, wherein the glass temperature refers to the temperature inside the front windshield of the target vehicle, the in-vehicle temperature refers to the temperature inside the target vehicle, and the in-vehicle humidity refers to the humidity inside the target vehicle.

[0150] The probability calculation submodule is used to obtain the fogging probability of the front windshield according to the glass temperature, the temperature inside the vehicle and the humidity inside the vehicle, wherein the fogging probability is used to indicate the possibility of fogging of the front windshield.

[0151] The air conditioning adjustment submodule is used to adjust the operating state of the air conditioning component in the target vehicle based on the fogging probability when the ambient temperature of the target vehicle is less than the ambient temperature threshold, and the ambient temperature refers to the temperature of the external environment where the target vehicle is located.

[0152] In some embodiments, the air conditioning adjustment submodule is used to adjust the operating state of the air conditioning component in the target vehicle to a first operating state when the fogging probability is greater than a first fogging threshold; and to adjust the operating state of the air conditioning component in the target vehicle to a second operating state when the fogging probability is less than a second fogging threshold; wherein the first fogging threshold is greater than the second fogging threshold.

[0153] In some embodiments, the air conditioning regulation submodule is used to turn on the compressor in the air conditioning component; adjust the air intake ratio of the internal and external circulation of the air conditioning component, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0154] In some embodiments, the air conditioning regulation submodule is used to shut down the compressor in the air conditioning component; and adjust the air intake ratio of the internal and external circulation of the air conditioning component, wherein the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

[0155] In some embodiments, the probability calculation submodule is used to obtain the dew point temperature based on the in-vehicle temperature and the in-vehicle humidity, wherein the dew point temperature is the critical temperature at which fogging begins in the target vehicle; and obtain the fogging probability of the front windshield based on the dew point temperature, the in-vehicle humidity, the glass temperature and the in-vehicle temperature.

[0156] In summary, the technical solution provided in the embodiments of the present application adjusts the operating status of the air-conditioning components in the target vehicle according to the passenger compartment requirements of the target vehicle, or uses the heat of the suspended engine to heat the passenger compartment of the target vehicle to meet the passenger compartment requirements. It realizes the use of appropriate strategies according to different passenger compartment requirements, meets the passenger compartment requirements with less energy consumption, and improves the endurance of the target vehicle.

[0157] It should be noted that the device provided in the above embodiment, when implementing its functions, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0158] Please refer to Figure 7 , which shows a structural block diagram of a computer device 700 provided in one embodiment of the present application. The computer device 700 may be Figure 1The thermal management system 10 in the implementation environment shown is used to implement the thermal management control method provided in the above embodiment. Specifically:

[0159] Typically, the computer device 700 includes a processor 710 and a memory 720 .

[0160] The processor 710 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 710 may be implemented in at least one hardware form of digital signal processing (DSP), field programmable gate array (FPGA), and programmable logic array (PLA). The processor 710 may also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 710 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 710 may also include an AI processor, which is used to process computing operations related to machine learning.

[0161] The memory 720 may include one or more computer-readable storage media, which may be non-transitory. The memory 720 may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 720 is used to store a computer program, which is configured to be executed by one or more processors to implement the above-mentioned thermal management control method.

[0162] Those skilled in the art will understand that Figure 7 The structure shown in the figure does not constitute a limitation on the computer device 700, and the computer device 700 may include more or less components than shown in the figure, or combine some components, or adopt a different arrangement of components.

[0163] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored, and when the computer program is executed by a processor, the thermal management control method described above is implemented. Optionally, the computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a solid state drive (SSD), or an optical disk. Among them, the random access memory may include a resistance random access memory (ReRAM) and a dynamic random access memory (DRAM).

[0164] In an exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device performs the above-mentioned thermal management control method.

[0165] It should be noted that the collection and processing of relevant data (such as user input information) in this application should be strictly in accordance with the requirements of relevant national laws and regulations when applied in examples, and the informed consent or separate consent of the personal information subject should be obtained, and subsequent data use and processing should be carried out within the scope of authorization of laws and regulations and the personal information subject.

[0166] It should be understood that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. In addition, the step numbers described in this article only illustrate a possible execution sequence between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order to the diagram. The embodiments of the present application are not limited to this.

[0167] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal management control method, characterized in that: The method comprises: Acquiring a passenger compartment demand of a target vehicle, wherein the passenger compartment demand refers to a demand for adjusting an internal environment of the target vehicle, and the passenger compartment demand includes an anti-fog demand and a heating demand, wherein the anti-fog demand refers to a demand for reducing a probability of fogging in the passenger compartment, and the heating demand refers to a demand for increasing an interior temperature of the passenger compartment; When the passenger compartment requirement is the anti-fogging requirement, adjusting the operating state of the air conditioning component in the target vehicle; When the passenger compartment demand is the heating demand and the operating mode of the target vehicle is switched from the first operating mode to the second operating mode, the passenger compartment is heated by utilizing the heat of the coolant of the engine corresponding to the first operating mode, and the first operating mode and the second operating mode use different engines to drive the target vehicle.

2. The method according to claim 1, characterized in that The thermal management component of the target vehicle includes: a high-voltage electric heater, a heat exchanger of a power battery, a first three-way valve and a second three-way valve; The first three-way valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the internal combustion engine, the second valve port is connected to the water inlet of the high-voltage electric heater, and the third valve port is connected to the water outlet of the heating core of the passenger compartment; The second three-way valve includes a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the water outlet of the high-voltage electric heater, the fifth valve port is connected to the water inlet of the heating core of the passenger compartment, and the sixth valve port is connected to the heat exchanger of the power battery; The high-voltage electric heater comprises a water outlet temperature sensor, and the water outlet temperature sensor is used to measure the temperature of the water outlet of the high-voltage electric heater.

3. The method according to claim 2, characterized in that The operating mode of the target vehicle includes an internal combustion engine mode and a pure electric mode, the engine includes the internal combustion engine and an electric motor, the internal combustion engine mode refers to a mode in which the internal combustion engine is used to drive the target vehicle, and the pure electric mode refers to a mode in which the electric motor is used to drive the target vehicle; The method of heating the passenger compartment by utilizing heat of the coolant of the engine corresponding to the first operation mode comprises: When the first operating mode is the internal combustion engine mode, the first three-way valve is opened to allow the first coolant of the internal combustion engine to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first coolant through the heating core; When the first operating mode is the pure electric mode, the first three-way valve is opened to allow the first medium to flow through the first three-way valve, the second three-way valve and the high-voltage electric heater to reach the heating core of the passenger compartment; the passenger compartment is heated by the heat of the first medium through the heating core; wherein the power battery is used to provide electrical energy to the electric motor, and the heat exchanger of the power battery is used to transfer the heat of the second coolant of the power battery to the first medium; When the temperature of the water outlet of the high-voltage electric heater is lower than a first threshold, the first three-way valve is closed and the high-voltage electric heater is turned on.

4. The method according to claim 1, characterized in that: The adjusting the operating state of the air conditioning component in the target vehicle includes: Obtaining the glass temperature, the vehicle interior temperature and the vehicle interior humidity, wherein the glass temperature refers to the temperature inside the front windshield of the target vehicle, the vehicle interior temperature refers to the temperature inside the target vehicle, and the vehicle interior humidity refers to the humidity inside the target vehicle; Obtaining a fogging probability of the front windshield according to the glass temperature, the temperature inside the vehicle, and the humidity inside the vehicle, wherein the fogging probability is used to indicate the possibility of fogging of the front windshield; When the ambient temperature of the target vehicle is less than an ambient temperature threshold, the operating state of the air conditioning component in the target vehicle is adjusted based on the fogging probability, and the ambient temperature refers to the temperature of the external environment where the target vehicle is located.

5. The method according to claim 4, characterized in that The step of adjusting the operating state of the air conditioning component in the target vehicle based on the fogging probability includes: When the fogging probability is greater than a first fogging threshold, adjusting the operating state of the air conditioning component in the target vehicle to a first operating state; When the fogging probability is less than a second fogging threshold, adjusting the operating state of the air conditioning component in the target vehicle to a second operating state; Wherein, the first fogging threshold is greater than the second fogging threshold.

6. The method according to claim 5, characterized in that The step of adjusting the operating state of the air conditioning component in the target vehicle to the first operating state includes at least one of the following: Turning on a compressor in the air conditioning assembly; The air intake ratio of the internal and external circulation of the air conditioning component is adjusted, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

7. The method according to claim 5, characterized in that The step of adjusting the operating state of the air conditioning component in the target vehicle to the second operating state includes at least one of the following: shutting down the compressor in the air conditioning assembly; The air intake ratio of the internal and external circulation of the air conditioning component is adjusted, and the air intake ratio of the internal and external circulation refers to the ratio of the air intake volume of the internal circulation to the air intake volume of the external circulation in the air conditioning component.

8. A computer device, characterized in that: The computer device comprises a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to implement the method according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 7.

10. A computer program product, characterized in that The computer program product comprises a computer program, which is loaded and executed by a processor to implement the method according to any one of claims 1 to 7.

Citation Information

Patent Citations

  • Refrigeration control method and system for compressor shared by air conditioner and battery of pure electric vehicle

    CN116278636A

  • Control method and device of vehicle cooling system

    CN116852955A

  • Heating method and device of vehicle-mounted air conditioner, vehicle and storage medium

    CN117549716A

  • Multi-heat-source electric vehicle thermal system control method and system and vehicle

    CN118528722A

  • Vehicular air-conditioner

    JP2009280172A