Heating control method and device of air conditioner, storage medium and vehicle

Abstract

The invention discloses a heating control method and device of an air conditioner, a storage medium and a vehicle, and relates to the technical field of air conditioner control. The method comprises the steps that in response to a heating control instruction, the temperature of the environment where a vehicle is located is obtained; under the condition that the environment temperature is smaller than the preset temperature, navigation information input by a user and / or the actual driving duration of the vehicle are / is obtained; when it is determined that the vehicle is in a short-distance working condition according to the navigation information and / or the actual driving duration, the air conditioner is controlled to enter a first heating mode based on an electric heater; and under the condition that it is determined that the vehicle is not in the short-distance working condition according to the navigation information and / or the actual driving duration, the air conditioner is controlled to enter a second heating mode based on the water temperature heater. According to the method, the corresponding heating mode is adopted according to the working condition of the vehicle, the advantages of the electric heater and the water temperature heater are brought into full play, and on the premise that the heating requirement of people in the vehicle is met, the energy consumption of an air conditioning system is reduced, and the driving range of the vehicle is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning control, and in particular to a heating control method for an air conditioner, a heating control device for an air conditioner, a computer-readable storage medium, and a vehicle. Background Art

[0002] In the vehicle field, air conditioning is an important device for regulating the internal temperature of the vehicle, ensuring the comfort of the occupants and ensuring driving safety.

[0003] In the related art, the heating function of the electric vehicle air conditioner is achieved by an electric heater. However, this control method has poor application flexibility and has significant limitations. Summary of the Invention

[0004] The present application aims to solve the technical problems raised by the above-mentioned background technology. To this end, the first purpose of the present application is to propose a heating control method for an air conditioner, which adopts a corresponding heating mode according to the working conditions of the vehicle, improves the flexibility of the air conditioner heating function, and gives full play to the advantages of electric heaters and water heaters. Under the premise of meeting the heating needs of the occupants of the vehicle, it minimizes the energy consumption of the air conditioning system and extends the driving range of the vehicle.

[0005] A second object of the present application is to provide a computer-readable storage medium.

[0006] The third object of this application is to provide a heating control device for an air conditioner.

[0007] A fourth object of the present application is to provide a vehicle.

[0008] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present application proposes a heating control method for an air conditioner, which is applied to a vehicle, wherein the air conditioner includes an electric heater and a water temperature heater, and the method includes: in response to a heating control instruction, obtaining the ambient temperature of the vehicle; when the ambient temperature is less than a preset temperature, obtaining navigation information input by the user and / or the actual driving time of the vehicle; when it is determined that the vehicle is in a short-distance operating condition based on the navigation information and / or the actual driving time, controlling the air conditioner to enter a first heating mode based on the electric heater; when it is determined that the vehicle is not in a short-distance operating condition based on the navigation information and / or the actual driving time, controlling the air conditioner to enter a second heating mode based on the water temperature heater.

[0009] According to the heating control method for an air conditioner of an embodiment of the present application, the ambient temperature of the vehicle is obtained in response to a heating control instruction, and when the ambient temperature is less than a preset temperature, the navigation information input by the user and / or the actual driving time of the vehicle are obtained, and based on this, it is determined whether the vehicle is in a short-distance operating condition. If it is in a short-distance operating condition, the air conditioner is controlled to enter a first heating mode based on an electric heater. If it is not in a short-distance operating condition, the air conditioner is controlled to enter a second heating mode based on a water heater. Thus, the method determines the vehicle operating condition based on the navigation information input by the user and / or the actual driving time of the vehicle, and controls the air conditioner to enter the corresponding heating mode based on the current operating condition, thereby improving the flexibility of the air conditioning heating function. At the same time, it fully utilizes the advantages of the electric heater and the water heater, and on the premise of meeting the air conditioning heating needs of the occupants of the vehicle, minimizes the energy consumption of the air conditioning system and extends the vehicle's driving range.

[0010] In addition, the heating control method for the air conditioner according to the above embodiment of the present application may also have the following additional technical features: According to one embodiment of the present application, the heating control method of the air conditioner also includes: receiving navigation information input by a user, and determining a planned driving time based on the navigation information; when the planned driving time is greater than or equal to a preset time, determining that the vehicle is not in a short-distance operating condition; when the planned driving time is less than the preset time, or when no navigation information is received, obtaining the actual driving time of the vehicle; when the actual driving time is less than the preset time, determining that the vehicle is in a short-distance operating condition, and when the actual driving time is greater than or equal to the preset time, determining that the vehicle is not in a short-distance operating condition.

[0011] According to one embodiment of the present application, after obtaining the ambient temperature of the vehicle, the heating control method of the air conditioner further includes: when the ambient temperature is greater than or equal to a preset temperature, controlling the air conditioner to enter a heating mode based on a water temperature heater.

[0012] According to one embodiment of the present application, controlling the air conditioner to enter a first heating mode based on an electric heater includes: obtaining a target heating temperature input by a user; determining a first target heating gear according to the target heating temperature and a first preset relationship, wherein the first preset relationship is used to characterize a mapping relationship between the target heating temperature and the first target heating gear; and controlling the gear of the electric heater based on the first target heating gear.

[0013] According to one embodiment of the present application, controlling the air conditioner to enter a second heating mode based on a water temperature heater includes: obtaining a target heating temperature input by a user, and determining the required heating power based on the target heating temperature; obtaining operating data of a vehicle's drive system, and determining the loss power based on the operating data; determining the target heating power based on the required heating power and the loss power, and controlling the water temperature heater based on the target heating power.

[0014] According to one embodiment of the present application, the operating parameters include the DC bus current and DC bus voltage of the drive system, and the power loss is determined based on the operating parameters, including: determining the driving efficiency of the drive system; obtaining the difference between the preset coefficient and the driving efficiency to obtain a first difference; obtaining the product of the first difference, the DC bus current and the DC bus voltage to obtain the power loss.

[0015] According to one embodiment of the present application, the target heating power is determined based on the required heating power and the lost power, and the water temperature heater is controlled based on the target heating power, including: obtaining the difference between the required heating power and the lost power to obtain the target heating power; determining the second target heating gear based on the target heating power and the second preset relationship, wherein the second preset relationship is used to characterize the mapping relationship between the target heating power and the second target heating gear; and controlling the gear of the water temperature heater based on the second target heating gear.

[0016] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a computer-readable storage medium on which a heating control program of an air conditioner is stored. When the heating control program of the air conditioner is executed by a processor, the above-mentioned heating control method of the air conditioner is implemented.

[0017] According to the computer-readable storage medium of the embodiment of the present application, when the heating control of the air conditioner stored thereon is executed by the processor, the above-mentioned heating control method of the air conditioner is implemented. Based on the above-mentioned heating control method of the air conditioner, the flexibility of implementing the heating function of the air conditioner is improved. On the premise of meeting the air conditioner heating needs of the occupants of the vehicle, the energy consumption of the air conditioning system is minimized, and the vehicle's cruising range is extended.

[0018] To achieve the above-mentioned purpose, the third aspect embodiment of the present application proposes a heating control device for an air conditioner, which is applied to a vehicle, wherein the air conditioner includes an electric heater and a water temperature heater, and the device includes: a first acquisition module, which is used to obtain the ambient temperature of the vehicle in response to the heating control instruction of the air conditioner; a second acquisition module, which is used to obtain the navigation information input by the user and / or the actual driving time of the vehicle after receiving the heating control instruction when the ambient temperature is lower than the preset temperature; a control module, which is used to control the air conditioner to enter a heating mode based on the electric heater when it is determined that the vehicle is in a short-distance working condition based on the navigation information and / or the actual driving time, and to control the air conditioner to enter a heating mode based on the water temperature heater when it is determined that the vehicle is not in a short-distance working condition based on the navigation information and / or the actual driving time.

[0019] According to an embodiment of the present application, the heating control device for an air conditioner obtains the ambient temperature of the vehicle via a first acquisition module upon receiving a heating control command from the air conditioner. When the ambient temperature is less than a preset temperature, the second acquisition module obtains navigation information input by a user and / or the actual driving time of the vehicle after receiving the heating control command. When the control module determines that the vehicle is in a short-distance operating condition based on the navigation information and / or the actual driving time, it controls the air conditioner to enter a heating mode based on the electric heater. When the control module determines that the vehicle is not in a short-distance operating condition based on the navigation information and / or the actual driving time, it controls the air conditioner to enter a heating mode based on the water heater. Thus, the device determines the vehicle operating condition based on the navigation information input by the user and / or the actual driving time of the vehicle, and controls the air conditioner to enter a corresponding heating mode based on the current operating condition. This improves the flexibility of the air conditioner heating function, while fully leveraging the advantages of the electric heater and the water heater. While meeting the heating needs of the vehicle occupants, it minimizes the energy consumption of the air conditioning system and extends the vehicle's driving range.

[0020] To achieve the above-mentioned purpose, the fourth embodiment of the present application proposes a vehicle, including a memory, a processor, and a heating control program of an air conditioner stored in the memory and runnable on the processor. When the processor executes the heating control program of the air conditioner, the above-mentioned heating control method of the air conditioner is implemented.

[0021] According to the vehicle of the embodiment of the present application, when the processor executes the heating control program of the air conditioner, the above-mentioned heating control method of the air conditioner is implemented. Based on the above-mentioned heating control method of the air conditioner, the flexibility of implementing the heating function of the air conditioner is improved. On the premise of meeting the air conditioner heating needs of the occupants of the vehicle, the energy consumption of the air conditioning system is minimized, and the vehicle's cruising range is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A flow chart of a heating control method of an air conditioner according to some embodiments of the present application; Figure 2 An architecture schematic diagram of a vehicle circulation system according to one specific embodiment of the present application; Figure 3 A flow chart of a heating control method of an air conditioner according to one specific embodiment of the present application; Figure 4 A connection schematic diagram of a heating control device of an air conditioner according to some embodiments of the present application; Figure 5 A block schematic diagram of a vehicle according to some embodiments of the present application. DETAILED DESCRIPTION

[0023] The heating control method of an air conditioner, computer readable storage medium, heating control device of an air conditioner and vehicle according to embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] An air conditioner is an important device for adjusting the temperature of the interior environment of a vehicle, ensuring the comfort level of the people in the vehicle and guaranteeing the safety of driving. For a fuel vehicle, the heating function of the air conditioner is generally realized by using the extra heat generated by the internal combustion of the engine in the ignition state of the vehicle. For an electric vehicle, since the internal combustion engine works in the vehicle, the air conditioning system in the electric vehicle needs to be configured with a heating component to realize the heating function.

[0025] In the related art, an electric heater is used as the heating component of the air conditioning system, and the required heating temperature is achieved by controlling the power of the electric heater. However, the implementation of this heating function has certain limitations.

[0026] To solve the above technical problems, the vehicle according to the present application is configured with an electric heater and a water temperature heater, and the electric heater or the water temperature heater in the air conditioner is controlled to start by judging the working condition of the vehicle, so as to execute different heating modes, improve the implementation flexibility of the heating function, realize the expansion of the application scenario, fully exert the advantages of the electric heater and the water temperature heater, minimize the energy consumption of the air conditioning system on the premise of meeting the heating demand of the people in the vehicle, and prolong the driving range of the vehicle.

[0027] The heating control method of an air conditioner according to the present application is described in detail below with reference to the accompanying drawings.

[0028] In some embodiments of the present application, the heating control method of an air conditioner is applied to a vehicle, and the air conditioner includes an electric heater and a water temperature heater.

[0029] That is, the air conditioner is a vehicle-mounted air conditioner, and the specific architecture design is as follows: Figure 2As shown in the figure, the PTC (Positive Temperature Coefficient) heater, also known as an electric heater, consists of a ceramic heating element and a heat sink. Powered by the vehicle's power battery, the heater heats the air blown by the air conditioner's blower during operation. Electric heaters offer the advantages of fast heating speed, low power consumption, and multiple adjustable heating power levels. However, the difficulty in precisely controlling the heating temperature affects the subjective experience of the air conditioner's heating function, resulting in poor comfort for vehicle occupants.

[0030] A WTC (Water-to-Water Thermal Control) heater, also known as a water heater, consists of a heating resistor and a water tank. The coolant in the tank is heated by the heating resistor and components in the cooling loop (including the drive motor, motor controller, DC / DC (Direct Current to Direct Current) converter, and power battery). When the air conditioner is operating, the air blown out by the air conditioner fan passes through the water tank radiator, achieving the air conditioner's heating function. The water heater essentially regulates the water tank temperature, enabling precise adjustment of the air conditioner's air outlet temperature, providing a better user experience than electric heaters. However, under special operating conditions (such as low temperatures), the water heater requires high power to heat the water tank to quickly meet the user's heating needs, resulting in rapid depletion of the power battery, which in turn affects the vehicle's driving range.

[0031] Reference Figure 1 The heating control method of the air conditioner according to the embodiment of the present application comprises the following steps: S1, in response to a heating control instruction, obtaining the ambient temperature of the vehicle.

[0032] Specifically, the driver can actively activate the air conditioner's heating control via the central control screen or physical buttons, or remotely control the vehicle's heating function using a mobile phone app. The vehicle controller receives and responds to the user-triggered heating control command, then obtains the vehicle's ambient temperature through the onboard temperature sensor.

[0033] In addition, the heating control instruction can be a trigger instruction for the air conditioning heating mode, that is, controlling the air conditioner to turn on the heating mode; it can also be a permission trigger instruction for the air conditioning heating mode, that is, unlocking the heating mode of the air conditioner, and automatically controlling whether the air conditioning heating mode is started according to the judgment result of the ambient temperature.

[0034] S2: When the ambient temperature is lower than a preset temperature, obtain navigation information input by the user and / or the actual driving time of the vehicle.

[0035] Specifically, the preset temperature is used to determine whether the vehicle is in a low-temperature operating condition. It can be set according to actual conditions, such as based on user customization, or it can be determined based on the technical parameters of the vehicle battery. The technical parameters of the vehicle battery may include the basic performance parameters of the battery, charge and discharge characteristics, etc. In the case of setting the preset temperature based on the technical parameters of the battery, when the ambient temperature is lower than the preset temperature, it indicates that the low temperature environment will have a serious impact on the output performance of the battery, and heat supplementation is required through the heating function of the air conditioner to maintain the output performance of the battery. For example, the low-temperature performance of the ternary lithium-ion power battery is better than that of the iron phosphate power battery. Therefore, the preset temperature determined based on the ternary lithium-ion power battery is lower than the preset temperature determined based on the lithium-ion power battery.

[0036] The vehicle controller compares the acquired ambient temperature with the preset temperature. When the ambient temperature is lower than the preset temperature, the navigation information input by the user and / or the actual driving time of the vehicle are acquired. The navigation information can be acquired through navigation instructions triggered by the user on the vehicle's central control screen, or by receiving navigation information set by the user on a mobile phone terminal. The navigation information may include the length of the navigation route, the estimated time of arrival, the planned driving time, etc. The actual driving time of the vehicle can be monitored and acquired by monitoring the actual speed of the vehicle. For example, when the actual speed of the vehicle is higher than the preset speed, the vehicle is deemed to be in driving state, and the timing is started. In addition, the actual driving time of the vehicle can be counted from zero when it is determined that the ambient temperature is lower than the preset temperature.

[0037] As mentioned above, electric heaters are characterized by fast heating speed and low power consumption, but they are less comfortable than water heaters. Water heaters provide a better vehicle riding experience because they can precisely control the temperature of the air conditioning outlet. However, they consume a lot of power in low-temperature conditions, affecting the vehicle's range. Therefore, this application combines the vehicle's operating conditions to determine the implementation of different heating modes, as follows: S3: When it is determined based on the navigation information and / or the actual driving time that the vehicle is in a short-distance operating condition, the air conditioner is controlled to enter a first heating mode based on the electric heater.

[0038] Specifically, whether the vehicle is in a short-distance condition can be determined solely based on the received navigation information. For example, if the route length from the destination is less than 30 kilometers as determined by the navigation information, the vehicle is considered to be in a short-distance condition; otherwise, the vehicle is considered not to be in a short-distance condition. It is also possible to determine whether the vehicle is in a short-distance condition solely based on the vehicle's actual driving time. For example, if the actual driving time is less than 10 minutes, the vehicle is considered to be in a short-distance condition; otherwise, the vehicle is considered not to be in a short-distance condition. It is also possible to combine navigation information and actual driving time to jointly determine whether the vehicle is in a short-distance condition to improve detection accuracy. For example, if the route length from the destination is less than 30 kilometers as determined by the navigation information and the vehicle's actual driving time is less than 10 minutes, the vehicle is considered to be in a short-distance condition; otherwise, the vehicle is considered not to be in a short-distance condition.

[0039] In low-temperature conditions, after the vehicle is started, most occupants will require heating from the vehicle's air conditioning. Activating the water heater at this point consumes a significant amount of energy. Furthermore, the performance of the vehicle's power battery will significantly degrade in low-temperature conditions, resulting in a reduction in the vehicle's range. Combined with the above factors, simply activating the water heater for heating in low-temperature conditions consumes a significant amount of power from the power battery, significantly reducing the vehicle's range and severely impacting the user's subjective experience. This issue is particularly pronounced during short, low-temperature trips. Therefore, this application implements the first heating mode when determining that the vehicle is in a low-temperature, short-distance operating condition. The first heating mode is an air conditioner operating mode that uses electric heating to achieve heating.

[0040] In other words, if the vehicle is determined to be in a low-temperature, short-distance operating condition, the air conditioner's electric heater is activated while the water heater remains deactivated, thereby controlling heating through the electric heater. Taking advantage of the electric heater's fast heating speed, the vehicle's interior temperature quickly reaches the user's desired level, ensuring effective heating under short-distance conditions. At the same time, this prevents the high-power operation of the water heater from rapidly depleting the power battery and affecting the vehicle's range.

[0041] S4: When it is determined based on the navigation information and / or the actual driving time that the vehicle is not in a short-distance operating condition, the air conditioner is controlled to enter a second heating mode based on the water temperature heater.

[0042] That is to say, whether the vehicle is not in a short-distance operating condition can be determined based solely on the received navigation information, or solely on the actual driving time, or by combining the navigation information and the actual driving time. For details, please refer to the above-mentioned judgment process of the short-distance operating condition, which will not be elaborated here.

[0043] The second heating mode utilizes water heating to provide heating. If the vehicle is not traveling on a short trip, the air conditioner's water heater is activated while the electric heater remains deactivated. This allows for precise adjustment of the air outlet temperature, enhancing the user experience.

[0044] This embodiment provides an air conditioning control method for electric vehicles using a dual PTC and WTC heating system. This method leverages the advantages of both PTC and WTC heaters, and, combined with a corresponding control strategy, addresses the conflict between vehicle users' demand for vehicle warmth and excessive heating power consumption during short, low-temperature driving. While meeting the vehicle's heating needs, this method minimizes the air conditioning system's energy consumption, extending the vehicle's range while ensuring user comfort during long, low-temperature driving. The method first determines whether the vehicle is in a short-distance driving condition. Based on this determination, it then implements different control strategies to achieve the vehicle's air conditioning heating function, balancing the conflict between heating effectiveness and heating power consumption.

[0045] In some embodiments of the present application, the heating control method of the air conditioner also includes: receiving navigation information input by the user, and determining the planned driving time based on the navigation information; when the planned driving time is greater than or equal to the preset time, determining that the vehicle is not in a short-distance operating condition; when the planned driving time is less than the preset time, or when no navigation information is received, obtaining the actual driving time of the vehicle; when the actual driving time is less than the preset time, determining that the vehicle is in a short-distance operating condition, and when the actual driving time is greater than or equal to the preset time, determining that the vehicle is not in the said short-distance operating condition.

[0046] Specifically, after the vehicle is powered on, the user can set the navigation on the central control screen according to the travel destination. At this time, navigation information is obtained based on the user's navigation input on the central control screen; in addition, navigation information can also be received when the user executes the navigation function on the mobile phone terminal.

[0047] Upon receiving navigation information input by the user, the vehicle's operating condition is first determined based on the navigation information. Specifically, the navigation information is analyzed to determine the planned driving time required to reach the destination. If the planned driving time is less than a preset time, the vehicle is considered to be in a short-distance operating condition; otherwise, the vehicle is considered to be in a non-short-distance operating condition. The preset time can be set based on actual conditions and is not limited here; for example, 8 minutes is used.

[0048] If the navigation information input by the user is not received, the timing action of the actual driving duration of the vehicle is triggered in the case that the identified ambient temperature is lower than the preset temperature, and the working condition is judged according to the actual driving duration of the vehicle. For the purpose of saving energy consumption, when the actual driving duration is less than 8 min, it is considered that the vehicle is in a short-distance working condition, and the electric heater is used to implement the heating control of the air conditioner, and the actual working duration of the electric heater is recorded as the actual driving duration of the vehicle; when the working duration of the electric heater exceeds 8 min, it is indicated that the current working condition is a non-short-distance working condition, and the air conditioner control state based on the water temperature heater is switched to in this state, so as to provide more comfortable air conditioning experience for the people in the vehicle under the premise of meeting the heating demand of the vehicle.

[0049] In addition, since the working condition is judged based on the navigation information, the working condition is pre-judged based on the estimated duration, and in order to ensure the control accuracy, the actual working condition of the vehicle is further calibrated in combination with the actual driving duration in the case that the navigation information input by the user is received and it is considered that the vehicle is in a short-distance working condition based on the navigation information. That is to say, when it is determined that the vehicle is in a short-distance working condition according to the navigation information, the electric heater is first started, and the actual driving duration of the vehicle is timed, if the actual driving duration reaches 8 min, it is considered that the vehicle is actually in a non-short-distance working condition, and the water temperature heater is switched to for heating function at this time. Specifically, the starting duration of the electric heater can be used as the actual driving duration of the vehicle.

[0050] That is to say, the embodiment first judges the low-temperature short-distance working condition based on the received navigation information after the vehicle is powered on, if the low-temperature short-distance working condition is judged to be correct, the air conditioner control based on the water temperature heater is adopted to meet the heating demand of the people in the vehicle; if it is not clear that the current is a low-temperature short-distance working condition (no navigation information is received), the air conditioner control based on the electric heater is also first adopted, and the working time of the electric heater is recorded in this process, when the working time of the electric heater reaches the preset duration, it is indicated that this trip is a non-short-distance working condition, and the air conditioner control method based on the water temperature heater is switched to in this case to meet the heating demand of the people in the vehicle. When it is determined that this trip is a non-short-distance working condition according to the received navigation information, the water temperature heater is directly used for heating control.

[0051] In some embodiments of the present application, after obtaining the ambient temperature of the vehicle, it further includes: in the case that the ambient temperature is greater than or equal to the preset temperature, controlling the air conditioner to enter the heating mode based on the water temperature heater.

[0052] Specifically, the preset temperature is taken as a judgment condition of the low-temperature environment. When the ambient temperature is lower than the preset temperature, it is considered that the vehicle is in a low-temperature environment and has a high heating demand. When the ambient temperature is greater than or equal to the preset temperature, it is considered that the vehicle is not in a low-temperature environment and has a relatively low heating demand. At this time, the water temperature heater can be used to execute the heating demand, and the air outlet temperature of the air conditioner can be accurately controlled under the premise of meeting the heating demand, thereby providing a better vehicle ride experience.

[0053] In some embodiments of the present application, the air conditioner is controlled to enter a first heating mode based on an electric heater, including: obtaining a target heating temperature input by a user; determining a first target heating gear according to the target heating temperature and a first preset relationship, wherein the first preset relationship is used to represent a mapping relationship between the target heating temperature and the first target heating gear; and performing gear control on the electric heater based on the first target heating gear.

[0054] Specifically, first, the electric heater is divided into a plurality of heating gears allowed by the electric heater according to the performance parameters of the electric heater, and the number of the allowed heating gears of the electric heater is defined as N. The heating power of the electric heater can be divided into N gears. Then, the mapping relationship between the user demand temperature and the gears of the electric heater is determined by real vehicle calibration, and is stored in the form of a table to obtain the first preset relationship.

[0055] In the air conditioning heating control process, the vehicle controller receives the target heating temperature input by the user through the control panel, obtains the heating gear corresponding to the temperature by table lookup, takes the heating gear as the first target heating gear, and then outputs the gear instruction corresponding to the first target heating gear to the electric heater. The electric heater heats in real time according to the gear instruction to meet the heating demand of the people in the vehicle.

[0056] In some embodiments of the present application, the air conditioner is controlled to enter a second heating mode based on a water temperature heater, including: obtaining a target heating temperature input by a user, and determining a demand heating power according to the target heating temperature; obtaining running data of a drive system of the vehicle, and determining a loss power based on the running data; determining a target heating power according to the demand heating power and the loss power, and controlling the water temperature heater based on the target heating power.

[0057] Specifically, first, the mapping relationship between the user demand temperature and the output power of the water temperature heater is determined by real vehicle calibration, and is stored in the form of a table.

[0058] In the air conditioning heating control process, the vehicle controller receives the demand temperature value input by the user through the control panel as the target heating temperature, and then obtains the output power corresponding to the target heating temperature by table lookup as the demand heating power.

[0059] Combine Figure 2 As shown, the vehicle's drive system generates a significant amount of heat during driving. This heat enters the circulation system to meet the vehicle's heating needs. Therefore, power loss, or heating power compensation generated by the drive system, is calculated based on the vehicle's drive system operating data. The drive system operating data, which may include operating power and operating status, is used to estimate the amount of heating compensation, or power loss, that can be generated.

[0060] Then, a target heating power is determined based on the required heating power and the power loss. For example, a weighted calculation is performed on the required heating power and the power loss to determine the target heating power. The required heating power output of the water heater is determined based on the target heating power, thereby performing the corresponding heating. In some embodiments of the present application, the operating parameters include the DC bus current and DC bus voltage of the drive system. Determining the power loss based on the operating parameters includes: determining the drive efficiency of the drive system; obtaining a first difference by obtaining a difference between a preset coefficient and the drive efficiency; and obtaining the power loss by obtaining the product of the first difference, the DC bus current, and the DC bus voltage.

[0061] Specifically, combined Figure 2 As shown in Figure 1, the drive system includes a drive motor and a motor controller. The vehicle controller receives the DC bus current and DC bus voltage output by the motor controller and the drive efficiency of the drive system in real time, and uses them in the following formula to calculate the power loss generated by the drive system:

[0062] in, is the power loss, 1 is the preset coefficient, For driving efficiency, is the first difference, is the DC bus current, is the DC bus voltage.

[0063] In some embodiments of the present application, the target heating power is determined based on the required heating power and the lost power, and the water temperature heater is controlled based on the target heating power, including: obtaining the difference between the required heating power and the lost power to obtain the target heating power; determining the second target heating gear based on the target heating power and the second preset relationship, wherein the second preset relationship is used to characterize the mapping relationship between the target heating power and the second target heating gear; and controlling the gear of the water temperature heater based on the second target heating gear.

[0064] Specifically, first, the water temperature heater is divided into multiple heating gears based on its performance parameters, and the number of allowable heating gears of the water temperature heater is defined as The mapping relationship between the actual output power of the water temperature heater and the heating gear of the water temperature heater is determined by actual vehicle calibration, and stored in the form of a table to obtain a second preset relationship.

[0065] In the heating control process based on the water heater, the heat generated by the water heater and the heat generated by the drive system during vehicle operation are used to meet the user's heating needs. Figure 2 In the system shown, the majority of heat generated during vehicle operation, excluding the air conditioning system, is generated by the drive system. Therefore, assuming that the power loss of the drive system is entirely used for heat generation, the target heating power is calculated using the following formula:

[0066] in, is the target heating power, The required heating power, is the power loss.

[0067] After determining the target heating power, a table lookup determines the corresponding heating level for the water heater, which serves as the second target heating level. The vehicle controller outputs a level command corresponding to the second target heating level to the water heater, which then adjusts the level accordingly to meet the user's heating needs.

[0068] As a specific embodiment of the present application, the control method of the air conditioner is applied to a Figure 2 The system architecture of the vehicle shown is Figure 2 As shown in the figure, the vehicle's cooling circulation system includes the drive system (including the drive motor and motor controller), air conditioning system, cooling system (including water pump, coolant tank, radiator, and fan), and other cooling loop components (such as the onboard charger and power conversion system). Driven by the water pump, the coolant in the coolant tank flows through the above systems, achieving heat exchange, meeting the cooling needs of vehicle components and the heating needs of the air conditioning system.

[0069] Specifically, for cooling needs, the heat generated by the drive system and other cooling loop components is brought to the radiator through the circulation of the coolant, and then the heat is exchanged to the outside of the vehicle under the action of the fan, thereby meeting the cooling needs of the vehicle system.

[0070] For heating needs, the water heater / electric heater in the air-conditioning system heats the coolant in the circulation system to meet the vehicle's heating needs; in addition, the vehicle's driving system generates a large amount of heat during driving, and this part of the heat enters the circulation system to meet the vehicle's heating needs.

[0071] In addition to the above, Figure 2The electric heater in the air conditioning system can work independently to meet the vehicle's heating needs when the water heater is not working.

[0072] As a specific embodiment of the present application, the preset temperature and preset duration Determined according to the technical parameters of the power battery, such as Figure 3 As shown, the heating control method of the air conditioner may include the following steps, wherein: S101, in response to a heating control instruction, obtaining the ambient temperature of the vehicle .

[0073] S102, judgment Is it less than If yes, go to step S103, if no, go to step S108.

[0074] S103: Determine whether navigation information input by the user is received. If yes, execute step S104; if not, execute step S106.

[0075] S104: Determine the planned driving time based on the navigation information .

[0076] S105, judgment Is it less than If yes, go to step S106; if no, go to step S107.

[0077] S106, control the air conditioner to enter the first heating mode based on the electric heater, and obtain the actual driving time of the vehicle Among them, the actual driving time The determination may be made based on the operating time of the electric heater.

[0078] S107, judgment Is it less than If yes, go to step S106, if no, go to step S108.

[0079] S108: Control the air conditioner to enter a second heating mode based on the water temperature heater.

[0080] In the second heating mode based on the water temperature controller, the target required power is determined by taking into account the heat supplement provided by the operation of the drive system, thereby controlling the water temperature controller.

[0081] The air-conditioning control method provided in this embodiment takes into account the impact of ambient temperature and driving conditions on the power consumption of the air-conditioning system, while fully utilizing the heat generated by the drive system when the vehicle is running. On the basis of meeting the basic heating needs of the occupants of the vehicle, it reduces the power consumption of the air-conditioning system and extends the vehicle's driving range.

[0082] In summary, according to the heating control method for an air conditioner of an embodiment of the present application, the ambient temperature of the vehicle is obtained according to the heating control instruction, and when it is determined that the ambient temperature is less than a preset temperature, the navigation information input by the user and / or the actual driving time of the vehicle are obtained, and based on this, it is determined whether the vehicle is in a short-distance operating condition. If it is in a short-distance operating condition, the air conditioner is controlled to enter a first heating mode based on the electric heater; if it is not in a short-distance operating condition, the air conditioner is controlled to enter a second heating mode based on the water heater. Thus, the method determines the vehicle operating condition according to the navigation information input by the user and / or the actual driving time of the vehicle, and controls the air conditioner to enter the corresponding heating mode based on the current operating condition, thereby improving the flexibility of the air conditioning heating function. At the same time, it fully utilizes the advantages of the electric heater and the water heater, and on the premise of meeting the air conditioning heating needs of the occupants of the vehicle, minimizes the energy consumption of the air conditioning system and extends the vehicle's driving range.

[0083] Corresponding to the above embodiment, the present application also proposes a computer-readable storage medium.

[0084] The computer-readable storage medium of the embodiment of the present application stores a heating control program for an air conditioner, and when the heating control program for the air conditioner is executed by a processor, the above-mentioned heating control method for the air conditioner is implemented.

[0085] According to the computer-readable storage medium of the embodiment of the present application, when the heating control of the air conditioner stored thereon is executed by the processor, the above-mentioned heating control method of the air conditioner is implemented. Based on the above-mentioned heating control method of the air conditioner, the flexibility of implementing the heating function of the air conditioner is improved. On the premise of meeting the air conditioner heating needs of the occupants of the vehicle, the energy consumption of the air conditioning system is minimized, and the vehicle's cruising range is extended.

[0086] Corresponding to the above embodiment, the present application also proposes a heating control device for an air conditioner.

[0087] In some embodiments of the present application, the heating control device of the air conditioner is applied to a vehicle, and the air conditioner includes an electric heater and a water heater.

[0088] Reference Figure 4 The heating control device 200 of the air conditioner according to the embodiment of the present application includes: a first acquisition module 210 , a second acquisition module 220 and a control module 230 .

[0089] Among them, the first acquisition module 210 is used to obtain the ambient temperature of the vehicle in response to the heating control instruction of the air conditioner; the second acquisition module 220 is used to obtain the navigation information input by the user and / or the actual driving time of the vehicle after receiving the heating control instruction when the ambient temperature is lower than the preset temperature; the control module 230 is used to control the air conditioner to enter the heating mode based on the electric heater when it is determined that the vehicle is in a short-distance working condition according to the navigation information and / or the actual driving time, and to control the air conditioner to enter the heating mode based on the water temperature heater when it is determined that the vehicle is not in a short-distance working condition according to the navigation information and / or the actual driving time.

[0090] According to one embodiment of the present application, the control module 230 is also used to: receive navigation information input by the user, determine the planned driving time based on the navigation information, and determine that the vehicle is not in the short-distance operating condition when the planned driving time is greater than or equal to the preset time, obtain the actual driving time of the vehicle when the planned driving time is less than the preset time, or when no navigation information is received, and determine that the vehicle is in the short-distance operating condition when the actual driving time is less than the preset time, and determine that the vehicle is not in the short-distance operating condition when the actual driving time is greater than or equal to the preset time.

[0091] According to one embodiment of the present application, the control module 230 is further configured to: when the ambient temperature is greater than or equal to a preset temperature, control the air conditioner to enter a heating mode based on a water temperature heater.

[0092] According to one embodiment of the present application, the control module 230 controls the air conditioner to enter a first heating mode based on the electric heater, specifically for: obtaining a target heating temperature input by the user, determining a first target heating gear according to the target heating temperature and a first preset relationship, wherein the first preset relationship is used to characterize the mapping relationship between the target heating temperature and the first target heating gear, and performing gear control on the electric heater based on the first target heating gear.

[0093] According to one embodiment of the present application, the control module 230 controls the air conditioner to enter a second heating mode based on the water temperature heater, which is specifically used to: obtain the target heating temperature input by the user, and determine the required heating power based on the target heating temperature, obtain the operating data of the vehicle's drive system, and determine the loss power based on the operating data, determine the target heating power based on the required heating power and the loss power, and control the water temperature heater based on the target heating power.

[0094] According to one embodiment of the present application, the control module 230 determines the power loss based on the operating parameters, and is specifically used to: determine the driving efficiency of the drive system, obtain the difference between the preset coefficient and the driving efficiency, obtain the first difference, obtain the product of the first difference, the DC bus current and the DC bus voltage, and obtain the power loss.

[0095] According to one embodiment of the present application, the control module 230 determines the target heating power based on the required heating power and the lost power, and controls the water temperature heater based on the target heating power, specifically for: obtaining the difference between the required heating power and the lost power to obtain the target heating power, determining the second target heating gear based on the target heating power and the second preset relationship, wherein the second preset relationship is used to characterize the mapping relationship between the target heating power and the second target heating gear, and performing gear control on the water temperature heater based on the second target heating gear.

[0096] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the heating control method of the air conditioner is also applicable to the heating control device of the air conditioner in the embodiment of the present application. To avoid redundancy, it will not be elaborated here.

[0097] In summary, according to the heating control device for an air conditioner of the embodiment of the present application, upon receiving a heating control command from the air conditioner, the first acquisition module acquires the ambient temperature of the vehicle. Furthermore, upon receiving a heating control command from the air conditioner, the second acquisition module acquires navigation information input by the user and / or the actual driving time of the vehicle after receiving the heating control command, when the ambient temperature is less than a preset temperature. The control module controls the air conditioner to enter a heating mode based on the electric heater when determining that the vehicle is in a short-distance operating condition based on the navigation information and / or the actual driving time. Furthermore, upon determining that the vehicle is not in a short-distance operating condition based on the navigation information and / or the actual driving time, the control module controls the air conditioner to enter a heating mode based on the water heater. Thus, the device determines the vehicle operating condition based on the navigation information input by the user and / or the actual driving time of the vehicle, and controls the air conditioner to enter a corresponding heating mode based on the current operating condition. This improves the flexibility of the air conditioner heating function, while fully leveraging the advantages of both the electric heater and the water heater. While meeting the heating needs of the vehicle occupants, it minimizes the energy consumption of the air conditioning system and extends the vehicle's driving range.

[0098] Corresponding to the above embodiments, the present application also proposes a vehicle.

[0099] Reference Figure 5 The vehicle 300 of the present application includes a memory 310, a processor 320, and a heating control program for the air conditioner stored on the memory 310 and executable on the processor 320. When the processor executes the heating control program for the air conditioner, the above-mentioned heating control method for the air conditioner is implemented.

[0100] According to the vehicle of the embodiment of the present application, when the processor executes the heating control program of the air conditioner, the above-mentioned heating control method of the air conditioner is implemented. Based on the above-mentioned heating control method of the air conditioner, the flexibility of implementing the heating function of the air conditioner is improved. On the premise of meeting the air conditioner heating needs of the vehicle occupants, the energy consumption of the air conditioning system is minimized, and the vehicle's cruising range is extended.

[0101] It should be noted that the logic and / or steps represented in flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0102] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having logic gate circuits for implementing logic functions on data signals, an application-specific integrated circuit having suitable combinational logic gate circuits, a programmable gate array (PGA), a field-programmable gate array (FPGA), etc.

[0103] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0105] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0106] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A heating control method for an air conditioner, characterized in that: Applied to a vehicle, the air conditioner includes an electric heater and a water heater, and the method includes: In response to a heating control instruction, obtaining an ambient temperature of the vehicle; When the ambient temperature is lower than a preset temperature, obtaining navigation information input by a user and / or an actual driving time of the vehicle; When it is determined according to the navigation information and / or the actual driving time that the vehicle is in a short-distance operating condition, controlling the air conditioner to enter a first heating mode based on the electric heater; When it is determined according to the navigation information and / or the actual driving time that the vehicle is not in a short-distance operating condition, the air conditioner is controlled to enter a second heating mode based on the water temperature heater.

2. The heating control method according to claim 1, characterized in that: Also includes: receiving navigation information input by a user, and determining a planned driving duration based on the navigation information; When the planned driving time is greater than or equal to a preset time, determining that the vehicle is not in the short-distance operating condition; If the planned driving time is less than the preset time, or the navigation information is not received, obtaining the actual driving time of the vehicle; When the actual driving time is less than the preset time, it is determined that the vehicle is in the short-distance operating condition; and when the actual driving time is greater than or equal to the preset time, it is determined that the vehicle is not in the short-distance operating condition.

3. The heating control method according to claim 1, characterized in that: After obtaining the ambient temperature of the vehicle, the method further includes: When the ambient temperature is greater than or equal to the preset temperature, the air conditioner is controlled to enter a heating mode based on the water temperature heater.

4. The heating control method according to any one of claims 1 to 3, characterized in that: Controlling the air conditioner to enter a first heating mode based on the electric heater includes: Get the target heating temperature input by the user; determining a first target heating gear according to the target heating temperature and a first preset relationship, wherein the first preset relationship is used to represent a mapping relationship between the target heating temperature and the first target heating gear; The electric heater is controlled based on the first target heating level.

5. The heating control method according to any one of claims 1 to 3, characterized in that: Controlling the air conditioner to enter a second heating mode based on the water temperature heater includes: Obtaining a target heating temperature input by a user, and determining a required heating power based on the target heating temperature; acquiring operating data of a drive system of the vehicle, and determining power loss based on the operating data; A target heating power is determined according to the required heating power and the power loss, and the water temperature heater is controlled based on the target heating power.

6. The heating control method according to claim 5, characterized in that: The operating parameters include a DC bus current and a DC bus voltage of the drive system, and determining the power loss based on the operating parameters includes: determining a drive efficiency of the drive system; Obtaining a difference between a preset coefficient and the driving efficiency to obtain a first difference; The power loss is obtained by acquiring a product of the first difference, the DC bus current, and the DC bus voltage.

7. The heating control method according to claim 5, characterized in that: Determining a target heating power according to the required heating power and the power loss, and controlling the water heater based on the target heating power, including: Obtaining a difference between the required heating power and the loss power to obtain the target heating power; determining a second target heating gear according to the target heating power and a second preset relationship, wherein the second preset relationship is used to represent a mapping relationship between the target heating power and the second target heating gear; The water temperature heater is controlled based on the second target heating gear.

8. A computer-readable storage medium, characterized in that A heating control program of an air conditioner is stored thereon, and when the heating control program of the air conditioner is executed by a processor, a heating control method of an air conditioner according to any one of claims 1 to 7 is implemented.

9. A heating control device for an air conditioner, characterized in that: Applied to a vehicle, the air conditioner includes an electric heater and a water heater, and the device includes: a first acquisition module, configured to acquire the ambient temperature of the vehicle in response to a heating control instruction of the air conditioner; a second acquisition module, configured to acquire, when the ambient temperature is lower than a preset temperature, navigation information input by a user and / or an actual driving time of the vehicle after receiving the heating control instruction; a control module for controlling the air conditioner to enter a heating mode based on the electric heater when it is determined based on the navigation information and / or the actual driving duration that the vehicle is in a short-distance operating condition, and for controlling the air conditioner to enter a heating mode based on the water heater when it is determined based on the navigation information and / or the actual driving duration that the vehicle is not in a short-distance operating condition.

10. A vehicle, characterized in that: The invention comprises a memory, a processor and a heating control program for an air conditioner stored in the memory and executable on the processor. When the processor executes the heating control program for the air conditioner, the heating control method for the air conditioner according to any one of claims 1 to 7 is implemented.

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