Vehicle air conditioning control method, device, controller and storage medium

Abstract

The application discloses a vehicle air conditioner control method and device, a controller and a storage medium, and belongs to the technical field of vehicles. The vehicle air conditioner control method provided by the application determines the rotating speed of the outer circulating fan of the vehicle based on the temperature difference between the inside and outside of the vehicle when the temperature outside the vehicle is greater than a first preset temperature, obtains the current temperature in the vehicle after the outer circulating fan operates at the rotating speed for a period of time, adjusts the rotating speed of the outer circulating fan when the current temperature is still greater than the temperature outside the vehicle, and controls the air conditioning system to start after the outer circulating fan operates at the adjusted rotating speed for a period of time. As can be seen, the method first starts the outer circulating fan, and the outer circulating fan reduces the temperature in the vehicle to a certain extent, so that the air conditioning system does not work under high load, thereby reducing the energy consumption of the vehicle. Therefore, the method can reduce the energy consumption of the vehicle and keep the temperature in the vehicle at an appropriate temperature.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle air conditioning control method, device, controller and storage medium. Background Technology

[0002] With the rapid development of new energy vehicles, users have increasingly higher requirements for vehicle energy consumption. Both high-voltage and low-voltage components need to minimize energy consumption to ensure the vehicle's driving range. Currently, more and more new energy vehicles have remote air conditioning activation capabilities. When the interior temperature is too low or too high, the air conditioning can be remotely turned on in advance to reach a comfortable temperature, ensuring user comfort. However, in actual use, it has been found that remote air conditioning use results in higher vehicle energy consumption. Therefore, how to reduce vehicle energy consumption while maintaining a comfortable interior temperature has become a pressing issue that needs to be addressed. Summary of the Invention

[0003] This application provides a vehicle air conditioning control method, device, controller, and storage medium, which can reduce vehicle energy consumption and ensure that the interior temperature is maintained at a comfortable level. The technical solution is as follows:

[0004] On the one hand, a vehicle air conditioning control method is provided, the method comprising:

[0005] A first temperature and a second temperature are obtained, wherein the first temperature is the temperature outside the vehicle and the second temperature is the temperature inside the vehicle;

[0006] When the first temperature is greater than the first preset temperature, the rotation speed of the vehicle's external circulation fan is determined based on the first temperature difference between the first temperature and the second temperature;

[0007] When the external circulation fan operates based on the specified speed for a duration that reaches a first preset duration, the current temperature inside the vehicle is obtained;

[0008] If the current temperature is higher than the first temperature, adjust the speed of the external circulation fan;

[0009] When the external circulation fan operates for a duration based on the adjusted speed for a second preset duration, the air conditioning system is turned on.

[0010] In one possible implementation, determining the rotational speed of the vehicle's external circulation fan based on the first temperature difference between the first temperature and the second temperature includes:

[0011] If the first temperature difference is less than the first preset difference, the rotation speed of the external circulation fan is determined to be the first rotation speed;

[0012] If the first temperature difference is greater than the first preset difference and less than the second preset difference, the rotation speed of the external circulation fan is determined to be the second rotation speed.

[0013] If the first temperature difference is greater than the second preset difference, the rotation speed of the external circulation fan is determined to be the third rotation speed;

[0014] Wherein, the second preset difference is greater than the first preset difference, the third rotational speed is greater than the second rotational speed, and the second rotational speed is greater than the first rotational speed.

[0015] In another possible implementation, controlling the air conditioning system to turn on when the external circulation fan operates based on the adjusted speed for a second preset duration includes:

[0016] When the external circulation fan operates based on the adjusted speed for a duration that reaches the second preset duration, the set temperature of the air conditioning system is obtained;

[0017] The operating mode and fan speed of the air conditioning system are determined based on a third temperature difference between the current temperature and the set temperature.

[0018] The air conditioning system is controlled to turn on based on its operating mode and fan speed.

[0019] In another possible implementation, controlling the air conditioning system to turn on when the external circulation fan operates based on the adjusted speed for a second preset duration includes:

[0020] If the external circulation fan operates for a duration based on the adjusted speed for a second preset duration, the vehicle type of the vehicle is determined.

[0021] In the case that the vehicle type is a hybrid vehicle, determine the operating mode of the air conditioning system and the driving mode of the vehicle;

[0022] Based on the operating mode and the driving mode, the air conditioning system is controlled to turn on.

[0023] In another possible implementation, the method further includes:

[0024] When the first temperature is greater than the second preset temperature, the rainfall signal detected by the rain sensor is acquired, and the second preset temperature is greater than the first preset temperature.

[0025] When the rainfall signal indicates no rain, the system controls multiple windows of the vehicle to their lowest positions and controls the external circulation fan to rotate at the third speed.

[0026] In another possible implementation, the method further includes:

[0027] When the first temperature is lower than the third preset temperature, the set temperature of the air conditioning system is obtained, wherein the third preset temperature is lower than the first preset temperature;

[0028] The operating mode and fan speed of the air conditioning system are determined based on the fourth temperature difference between the second temperature and the set temperature.

[0029] The air conditioning system is controlled to turn on based on its operating mode and fan speed.

[0030] On the other hand, a vehicle air conditioning control device is provided, the device comprising:

[0031] The first acquisition module is used to acquire a first temperature and a second temperature, wherein the first temperature is the temperature outside the vehicle and the second temperature is the temperature inside the vehicle;

[0032] The first determining module is used to determine the rotational speed of the vehicle's external circulation fan based on a first temperature difference between the first temperature and the second temperature when the first temperature is greater than a first preset temperature.

[0033] The second acquisition module is used to acquire the current temperature inside the vehicle when the external circulation fan has been running for a first preset time based on the rotation speed.

[0034] An adjustment module is used to adjust the speed of the external circulation fan when the current temperature is greater than the first temperature;

[0035] The first control module is used to control the air conditioning system to turn on when the external circulation fan has been running for a second preset time based on the adjusted speed.

[0036] In one possible implementation, the first determining module is configured to: determine the rotational speed of the external circulation fan as a first rotational speed when the first temperature difference is less than a first preset difference; determine the rotational speed of the external circulation fan as a second rotational speed when the first temperature difference is greater than the first preset difference and less than a second preset difference; and determine the rotational speed of the external circulation fan as a third rotational speed when the first temperature difference is greater than the second preset difference; wherein the second preset difference is greater than the first preset difference, the third rotational speed is greater than the second rotational speed, and the second rotational speed is greater than the first rotational speed.

[0037] In another possible implementation, the first control module is configured to: obtain the set temperature of the air conditioning system when the external circulation fan operates for a duration based on the adjusted speed for a second preset duration; determine the operating mode and fan speed of the air conditioning system based on a third temperature difference between the current temperature and the set temperature; and control the air conditioning system to start based on the operating mode and fan speed.

[0038] In another possible implementation, the first control module is configured to determine the vehicle type when the external circulation fan operates for a second preset duration based on the adjusted speed; if the vehicle type is a hybrid vehicle, determine the operating mode of the air conditioning system and the driving mode of the vehicle; and control the air conditioning system to turn on based on the operating mode and the driving mode.

[0039] In another possible implementation, the device further includes:

[0040] The third acquisition module is used to acquire the rainfall signal detected by the rain sensor when the first temperature is greater than the second preset temperature, wherein the second preset temperature is greater than the first preset temperature.

[0041] The second control module is used to control multiple windows of the vehicle to their lowest positions when the rainfall signal indicates that there is no rainfall, and to control the speed of the external circulation fan to a third speed.

[0042] In another possible implementation, the device further includes:

[0043] The third acquisition module is used to acquire the set temperature of the air conditioning system when the first temperature is lower than the third preset temperature, wherein the third preset temperature is lower than the first preset temperature.

[0044] The second determining module is used to determine the operating mode and fan speed of the air conditioning system based on the fourth temperature difference between the second temperature and the set temperature;

[0045] The third control module is used to control the air conditioning system to turn on based on the operating mode and fan speed of the air conditioning system.

[0046] On the other hand, a vehicle controller is provided, the vehicle controller including a main control module, the main control module including a processor and a memory, the memory storing at least one piece of program code, the at least one piece of program code being loaded and executed by the processor to implement the vehicle air conditioning control method described above.

[0047] On the other hand, a computer-readable storage medium is provided, wherein at least one piece of program code is stored in the computer-readable storage medium, the at least one piece of program code being loaded and executed by a processor to implement the vehicle air conditioning control method described in any of the preceding claims.

[0048] On the other hand, a computer program product is provided, wherein at least one piece of program code is stored in the computer program product, and the at least one piece of program code is loaded and executed by a processor to implement the vehicle air conditioning control method described in any of the above claims.

[0049] This application provides a vehicle air conditioning control method. When the outside temperature of the vehicle is higher than a first preset temperature, the method determines the rotation speed of the vehicle's external circulation fan based on the temperature difference between the inside and outside of the vehicle. After the external circulation fan runs at this speed for a period of time, the current temperature inside the vehicle is obtained. If the current temperature is still higher than the outside temperature, the rotation speed of the external circulation fan is adjusted. After the external circulation fan runs at the adjusted speed for a period of time, the air conditioning system is turned on. Therefore, this method turns on the external circulation fan before turning on the air conditioning system, thereby lowering the interior temperature to some extent. This prevents the air conditioning system from operating under high load, thus reducing vehicle energy consumption. Simultaneously, because the air conditioning system is turned on, the interior temperature is kept at a comfortable level. Therefore, this method can both reduce vehicle energy consumption and maintain a comfortable interior temperature.

[0050] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this disclosure. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of a vehicle air conditioning control system provided in an embodiment of this application;

[0052] Figure 2 This is a flowchart of a vehicle air conditioning control method provided in an embodiment of this application;

[0053] Figure 3 This is a schematic diagram of controlling a vehicle air conditioner according to an embodiment of this application;

[0054] Figure 4 This is a schematic diagram of the structure of a vehicle air conditioning control device provided in an embodiment of this application;

[0055] Figure 5 This is a structural block diagram of a vehicle controller provided in an embodiment of this application. Detailed Implementation

[0056] To make the technical solution and advantages of this application clearer, the embodiments of this application will be described in further detail below.

[0057] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0058] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the key signal, rainfall signal, temperature, etc. involved in this application were all obtained with full authorization.

[0059] Figure 1 This is a schematic diagram of a vehicle air conditioning control system provided in an embodiment of this application. See also... Figure 1 The system includes: a vehicle control unit (VCU), a body control module (BCM), an air conditioning system (ECC), a vehicle networking system (T-BOX), an interior temperature sensor (105), and an exterior temperature sensor (106). The exterior temperature sensor (106), the interior temperature sensor (105), the body control module (102), the air conditioning system (103), and the T-BOX (104) are all electrically connected to the vehicle control unit (101).

[0060] The electrical connection can be either a cable connection or a wireless connection; this embodiment does not specifically limit the type of connection. If the electrical connection is a cable connection, the body controller 102 and the vehicle controller 101 can be connected via a CAN (Controller Area Network) signal line, and the air conditioning system 103 and the vehicle controller 101 can be connected via a CAN signal line. If the electrical connection is a wireless connection, the connection method can be a wireless local area network or a WiFi (Wireless Fidelity) network connection.

[0061] In this embodiment, the user can set the vehicle's usage time and the set temperature of the air conditioning system 103 via a terminal, and send the usage time and set temperature to the vehicle controller 101 via the T-BOX 104. Alternatively, the vehicle controller 101 can also determine the usage time and set temperature through self-learning. After receiving the usage time and set temperature, the vehicle controller 101 sends a first temperature acquisition command and a second temperature acquisition command to the outside temperature sensor 106 and the inside temperature sensor 105, respectively. Based on the first temperature acquisition command, the outside temperature sensor 106 acquires the temperature outside the vehicle, i.e., the first temperature, and sends the first temperature to the vehicle controller 101. Based on the second temperature acquisition command, the inside temperature sensor 105 acquires the temperature inside the vehicle, i.e., the second temperature, and sends the second temperature to the vehicle controller 101.

[0062] The number of external temperature sensors 106 and internal temperature sensors 105 can be one or more, without specific limitation. For example, if there are multiple internal temperature sensors 105, these multiple internal temperature sensors 105 send the detected internal temperature to the vehicle controller 101. The vehicle controller 101 determines the average value of the multiple internal temperatures and sets this average value as the second temperature.

[0063] After acquiring the first and second temperatures, the vehicle controller 101 determines the relationship between the first temperature and the first, second, and third preset temperatures, and performs corresponding operations based on this relationship. These operations, in addition to activating the air conditioning system 103, include activating the external circulation fan and controlling at least one of the following: lowering multiple vehicle windows. Specifically, when the vehicle controller 101 controls the windows to lower, it can send a window-lowering command to the body controller 102, which then controls the windows to lower based on the command. The specific implementation process will be described in detail in the method embodiments and will not be elaborated here.

[0064] It should be noted that vehicle air conditioning consists of a compressor, condenser, large fan, blower, etc. For the entire system, the compressor and condenser have relatively high power and account for a large proportion of the vehicle's energy consumption, thus affecting the vehicle's range. This application, through the interaction between the vehicle controller 101, body controller 102, air conditioning system 103, and T-BOX 104, takes into account various weather conditions and user usage scenarios, ensuring that the interior temperature is maintained at a comfortable level when the user needs to use the vehicle. At the same time, the compressor, condenser, and other components of the air conditioning system 103 do not operate under high load, thereby reducing vehicle energy consumption and maintaining a comfortable interior temperature.

[0065] Figure 2This is a flowchart of a vehicle air conditioning control method provided in an embodiment of this application, executed by the vehicle controller. See also... Figure 2 The method includes:

[0066] Step 201: The vehicle controller acquires the first temperature and the second temperature.

[0067] The first temperature is the temperature outside the vehicle, and the second temperature is the temperature inside the vehicle.

[0068] The vehicle controller can acquire the first temperature sent by the outside temperature sensor and the second temperature sent by the inside temperature sensor.

[0069] In this embodiment, the vehicle controller can first obtain the vehicle's usage time and the air conditioning system's set temperature, and if the time interval between the current time and the usage time reaches a preset time interval, it can obtain the first temperature and the second temperature.

[0070] The vehicle's usage time and the air conditioning system's set temperature are set by the user through a target application on the terminal. This process can be as follows: In response to logging into the target application, the terminal displays a remote control interface, which includes usage time setting options and air conditioning temperature setting options. In response to detecting a trigger operation on the usage time setting options and air conditioning temperature setting options, the terminal obtains the set usage time and air conditioning system set temperature. The terminal sends the usage time and set temperature to the vehicle controller via the T-BOX, and the vehicle controller accordingly obtains the usage time and set temperature.

[0071] The vehicle's usage time and the air conditioning system's set temperature can also be determined by the vehicle controller through self-learning based on the user's driving habits.

[0072] The preset time interval can be set and changed as needed, without any specific limitation. For example, the preset time interval can be 10 minutes, 20 minutes, or 30 minutes.

[0073] After acquiring the first temperature, the vehicle controller determines the relationship between the first temperature and a first preset temperature, a second preset temperature, and a third preset temperature. The second preset temperature is greater than the first preset temperature, and the first preset temperature is greater than the third preset temperature. If the first temperature is greater than the first preset temperature, the vehicle controller executes step 202.

[0074] The first, second, and third preset temperatures can all be set and changed as needed, without any specific limitations. For example, the second preset temperature could be 30℃, the first preset temperature 20℃, and the third preset temperature 15℃.

[0075] Step 202: When the first temperature is greater than the first preset temperature, the vehicle controller determines the speed of the vehicle's external circulation fan based on the first temperature difference between the first temperature and the second temperature.

[0076] When the first temperature is greater than the first preset temperature, the vehicle controller determines the first temperature difference between the first temperature and the second temperature, and determines the speed of the external circulation fan based on the first temperature difference.

[0077] Specifically, when the first temperature difference is less than a first preset difference, the vehicle controller determines the external circulation fan speed as a first speed; when the first temperature difference is greater than the first preset difference but less than a second preset difference, the controller determines the external circulation fan speed as a second speed; and when the first temperature difference is greater than the second preset difference, the controller determines the external circulation fan speed as a third speed. The second preset difference is greater than the first preset difference, the third speed is greater than the second speed, and the second speed is greater than the first speed.

[0078] Both the first and second preset differences can be set and changed as needed, without any specific limitations. For example, the first preset difference is 5℃, and the second preset difference is 10℃.

[0079] In this embodiment of the application, the first speed can be the speed corresponding to the first gear, the second speed can be the speed corresponding to the second gear, and the third speed can be the speed corresponding to the third gear. The higher the speed, the higher the gear.

[0080] After the vehicle controller determines the speed of the external circulation fan, it can adjust the external circulation fan to the corresponding gear based on the speed and control the external circulation fan to run at the speed corresponding to that gear.

[0081] It should be noted that when the first temperature is higher than the first preset temperature, the vehicle controller can also acquire the rainfall signal detected by the rain sensor. When the rainfall signal indicates that there is no rain, the controller will lower multiple windows of the vehicle to their lowest positions when the key signal is detected.

[0082] In cases where the rainfall signal indicates no rain, and the user is not inside the vehicle, directly lowering multiple windows to their lowest positions by the vehicle controller could lead to the loss of items. However, when the vehicle controller detects a key signal, indicating the user is approaching the vehicle, it can then lower multiple windows to their lowest positions. This prevents item loss and reduces the interior temperature, thereby lowering energy consumption.

[0083] The vehicle controller can control multiple windows to be lowered to their lowest position via the body controller. This process can be as follows: the vehicle controller sends a window lowering command to the body controller, which can carry multiple window indicators. Based on these indicators, the body controller controls the windows corresponding to those indicators to be lowered to their lowest positions.

[0084] The number of windows can be set and changed as needed, without any specific limitation. For example, the number of windows can be 2, 3, or 4.

[0085] When the rainfall signal indicates rainfall, in order to prevent rainwater from entering the vehicle and damaging the vehicle's components, the vehicle controller can control only the external circulation fan to operate at the corresponding speed.

[0086] Step 203: When the external circulation fan has been running at this speed for a first preset duration, the vehicle controller obtains the current temperature inside the vehicle.

[0087] When the external circulation fan operates at this speed for a period of time that reaches the first preset duration, the vehicle controller obtains the current temperature inside the vehicle through the in-vehicle temperature sensor and determines whether the current temperature is greater than the first temperature.

[0088] The first preset duration can be set and changed as needed, and there is no specific limitation on it. For example, the preset time interval is 20 minutes, and the first preset duration is 15 minutes, 16 minutes, or 18 minutes.

[0089] Step 204: When the current temperature is higher than the first temperature, the vehicle controller adjusts the speed of the external circulation fan.

[0090] In one possible implementation, if the current temperature is higher than a first temperature, the vehicle controller directly adjusts the speed of the external circulation fan.

[0091] In this implementation, if the speed of the external circulation fan in step 202 is the first speed or the second speed, then if the current temperature is greater than the first temperature, the vehicle controller will adjust the speed of the external circulation fan to the third speed.

[0092] In another possible implementation, if the current temperature is higher than the first temperature, the vehicle controller determines a second temperature difference between the current temperature and the first temperature, and adjusts the speed of the external circulation fan based on the second temperature difference.

[0093] In this implementation, if the external circulation fan speed is the first speed in step 202 and the second temperature difference is less than the third preset difference, the vehicle controller adjusts the external circulation fan speed to the second speed. If the external circulation fan speed is the first speed in step 202 and the second temperature difference is greater than the third preset difference, the vehicle controller adjusts the external circulation fan speed to the third speed. If the external circulation fan speed is the second speed in step 202 and the second temperature difference is less than the third preset difference, the vehicle controller adjusts the external circulation fan speed to the third speed.

[0094] It should be noted that when the external circulation fan speed is the third speed in step 202, the vehicle controller will maintain this speed even if the current temperature is higher than the first temperature.

[0095] After the vehicle controller adjusts the speed of the external circulation fan, it can adjust the gear of the external circulation fan according to the adjusted speed and control the external circulation fan to run at the speed corresponding to the adjusted gear.

[0096] Step 205: When the external circulation fan has been running for a second preset time based on the adjusted speed for a period of time, the vehicle controller controls the air conditioning system to turn on.

[0097] This step can be achieved in any of the following ways.

[0098] In the first implementation method, when the external circulation fan runs for a period of time based on the adjusted speed for a second preset duration, the vehicle controller directly controls the air conditioning system to turn on.

[0099] In the second implementation method, when the external circulation fan runs for a second preset time based on the adjusted speed, the vehicle controller obtains the set temperature of the air conditioning system; based on the third temperature difference between the current temperature and the set temperature, it determines the working mode and fan speed of the air conditioning system; and based on the working mode and fan speed of the air conditioning system, it controls the air conditioning system to turn on.

[0100] In this implementation, since the first temperature is greater than the first preset temperature, the vehicle controller determines that the air conditioning system is in cooling mode.

[0101] The process by which the vehicle controller determines the air conditioning system's fan speed based on a third temperature difference can be as follows: If the third temperature difference is less than a fourth preset difference, the vehicle controller determines the air conditioning system's fan speed as a first fan speed; if the third temperature difference is greater than the fourth preset difference but less than a fifth preset difference, the vehicle controller determines the air conditioning system's fan speed as a second fan speed; if the third temperature difference is greater than the fifth preset difference, the vehicle controller determines the air conditioning system's fan speed as a third fan speed. Specifically, the fifth preset difference is greater than the fourth preset difference, the third fan speed is greater than the second fan speed, and the second fan speed is greater than the first fan speed.

[0102] It should be noted that since the vehicle controller has already obtained the set temperature of the air conditioning system in step 201, it is not necessary to obtain it again here.

[0103] In this embodiment, after the external circulation fan has been running for a period of time, the temperature inside the vehicle will drop to a certain extent. Turning on the air conditioning system at this time can greatly reduce energy consumption. Furthermore, when turning on the air conditioning system, the fan speed of the air conditioning system is determined first based on the temperature difference between the current temperature inside the vehicle and the set temperature. The air conditioning system is then turned on based on this fan speed. In this way, the air conditioning system does not need to work under high load, which can further reduce energy consumption.

[0104] The third implementation method involves the vehicle controller determining the vehicle type when the external circulation fan operates for a second preset time based on the adjusted speed; if the vehicle type is a hybrid vehicle, it determines the operating mode of the air conditioning system and the vehicle's drive mode; and based on the operating mode and drive mode, it controls the air conditioning system to turn on.

[0105] In this implementation, the vehicle controller determines whether the vehicle is a hybrid or pure electric vehicle. If the vehicle is a hybrid, the vehicle controller determines the driving mode of the hybrid vehicle. Since the first temperature is higher than the first preset temperature, the vehicle controller determines that the air conditioning system operates in cooling mode.

[0106] The vehicle controller, based on the operating mode and drive mode, controls the air conditioning system to start as follows:

[0107] When the operating mode is cooling mode and the hybrid vehicle's drive mode is pure electric drive mode, the vehicle controller controls the air conditioning system to turn on and controls the power battery to provide power to the air conditioning system.

[0108] When the operating mode is cooling mode and the hybrid vehicle's drive mode is pure engine drive mode, the vehicle controller controls the air conditioning system to turn on and controls the engine to drive the generator to provide power to the air conditioning system.

[0109] When the operating mode is cooling mode and the hybrid vehicle's drive mode is hybrid drive mode, the vehicle controller controls the air conditioning system to start based on the vehicle's required power.

[0110] In the case of operating mode being cooling mode and hybrid vehicle drive mode being hybrid drive mode, the vehicle controller determines whether engine power compensation is needed based on the vehicle's required power. If engine power compensation is needed, the vehicle controller controls the air conditioning system to turn on and controls the generator to provide power to the air conditioning system. If engine power compensation is not needed, the vehicle controller controls the air conditioning system to turn on and controls the power battery to provide power to the air conditioning system.

[0111] In this embodiment, after the external circulation fan has been running for a period of time, the temperature inside the vehicle will drop to a certain extent. Turning on the air conditioning system at this point can significantly reduce energy consumption. Furthermore, when the air conditioning system is turned on, different power sources can be controlled to provide power to the air conditioning system according to the vehicle type and its driving mode, which can further reduce energy consumption.

[0112] The fourth implementation method involves the vehicle controller determining the vehicle type when the external circulation fan operates for a duration based on the adjusted speed for a second preset duration; if the vehicle type is a hybrid vehicle, determining the operating mode of the air conditioning system and the driving mode of the vehicle; and determining the air conditioning system's fan speed based on the third temperature difference; and controlling the air conditioning system to turn on based on the operating mode, driving mode, and fan speed.

[0113] In this implementation, the process of the vehicle controller determining the working mode and drive mode is the same as in the third implementation mentioned above, and the process of determining the air conditioning system's fan speed is the same as in the second implementation mentioned above, so it will not be repeated here.

[0114] The process of controlling the air conditioning system to turn on based on the working mode, driving mode and wind speed can be as follows: when the working mode is cooling mode and the driving mode of the hybrid vehicle is pure electric driving mode, the vehicle controller controls the air conditioning system to turn on based on the wind speed of the air conditioning system, and controls the power battery to provide power to the air conditioning system.

[0115] When the operating mode is cooling mode and the hybrid vehicle's drive mode is pure engine drive mode, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed, and controls the engine to drive the generator to provide power to the air conditioning system.

[0116] When the operating mode is cooling mode and the hybrid vehicle's drive mode is hybrid drive mode, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed and the vehicle's required power.

[0117] In the case of operating mode being cooling mode and hybrid vehicle drive mode being hybrid drive mode, the vehicle controller determines whether engine power compensation is needed based on the vehicle's required power. If engine power compensation is needed, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed and controls the generator to provide power to the air conditioning system. If engine power compensation is not needed, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed and controls the power battery to provide power to the air conditioning system.

[0118] In this embodiment, after the external circulation fan has been running for a period of time, the interior temperature will drop to a certain extent. Turning on the air conditioning system at this point can significantly reduce energy consumption. Furthermore, when the air conditioning system is turned on, different power sources can be controlled to provide power to the air conditioning system based on the vehicle type and its driving mode. Simultaneously, the air conditioning system's fan speed is determined based on the temperature difference between the current interior temperature and the set temperature, and the air conditioning system is turned on based on this fan speed. This way, the air conditioning system does not need to operate under high load, further reducing energy consumption.

[0119] In this embodiment, when the vehicle controller controls the air conditioning system to turn on, it sends an on command to the air conditioning system, and the air conditioning system adjusts to the on state based on the on command. After the air conditioning system is turned on, it can send a notification message to the vehicle controller, and the vehicle controller determines that the air conditioning system is in the on state based on the notification message.

[0120] It should be noted that when the first temperature is higher than the second preset temperature, the vehicle controller can acquire the rainfall signal detected by the rain sensor; when the rainfall signal indicates that there is no rain, when the key signal is detected, the controller will control multiple windows of the vehicle to fall to their lowest positions and control the speed of the external circulation fan to the third speed.

[0121] In this implementation, when the rainfall signal indicates that there is no rain, when the vehicle controller detects the key signal, it means that the user is approaching the vehicle. At this time, the vehicle controller can control multiple windows of the vehicle to fall to their lowest positions and control the speed of the external circulation fan to the third speed.

[0122] The process of the vehicle controller lowering multiple windows to their lowest position is the same as in step 202, and will not be repeated here.

[0123] When the rainfall signal indicates rainfall, to prevent rainwater from entering the vehicle and damaging interior components, the vehicle controller can control the external air circulation fan speed to only the third speed. This third speed is the maximum speed, which quickly lowers the interior temperature.

[0124] Another point to note is that when the first temperature is lower than the third preset temperature, the vehicle controller can control the air conditioning system to turn on in any of the following ways.

[0125] In the first implementation method, when the first temperature is lower than the third preset temperature, the vehicle controller obtains the set temperature; based on the fourth temperature difference between the second temperature and the set temperature, it determines the working mode and fan speed of the air conditioning system; and based on the working mode and fan speed of the air conditioning system, it controls the air conditioning system to turn on.

[0126] In this implementation, since the first temperature is lower than the third preset temperature, the temperature inside the vehicle is not much different from the temperature outside the vehicle. Therefore, the vehicle controller determines that the air conditioning system is in heating mode.

[0127] If the first temperature is lower than the third preset temperature, the vehicle controller determines a fourth temperature difference between the second temperature and the set temperature.

[0128] When the fourth temperature difference is less than the sixth preset difference, the vehicle controller determines the air conditioning system's fan speed as the first fan speed; when the fourth temperature difference is greater than the sixth preset difference but less than the seventh preset difference, the air conditioning system's fan speed is determined as the second fan speed; when the fourth temperature difference is greater than the seventh preset difference, the air conditioning system's fan speed is determined as the third fan speed. The seventh preset difference is greater than the sixth preset difference.

[0129] The third preset temperature can be set and changed as needed, and there is no specific limitation on it. For example, the third preset temperature is 15℃. In addition, since the vehicle controller has obtained the set temperature of the air conditioning system in step 201, it is not necessary to obtain it again here.

[0130] In this embodiment, when the first temperature is lower than the third preset temperature, the vehicle controller can determine the air conditioning system's fan speed based on the temperature difference between the second temperature inside the vehicle and the set temperature, and then turn on the air conditioning system based on the fan speed. In this way, the air conditioning system does not need to work under high load, thereby reducing energy consumption.

[0131] In the second implementation method, when the first temperature is lower than the third preset temperature, the vehicle controller determines the vehicle type; if the vehicle type is a hybrid vehicle, it determines the operating mode of the air conditioning system and the driving mode of the vehicle; based on the operating mode and driving mode, it controls the air conditioning system to turn on.

[0132] In this implementation, since the first temperature is lower than the third preset temperature, the vehicle controller determines that the air conditioning system is in heating mode.

[0133] The vehicle controller, based on the operating mode and drive mode, controls the air conditioning system to start as follows:

[0134] When the operating mode is heating mode and the hybrid vehicle's drive mode is pure electric drive mode, the vehicle controller controls the air conditioning system to turn on and controls the three-electric system to provide heat to the air conditioning system through its coolant; the three-electric system is a collective term for the vehicle's battery, generator, and electronic control system.

[0135] When the operating mode is cooling mode and the hybrid vehicle's drive mode is pure engine drive mode, the vehicle controller controls the air conditioning system to turn on and controls the engine to provide heat to the air conditioning system using residual heat.

[0136] When the operating mode is cooling mode and the hybrid vehicle's drive mode is hybrid drive mode, the vehicle controller controls the air conditioning system to turn on, controls the engine to provide heat to the air conditioning system using residual heat, and / or controls the three-electric system to provide heat to the air conditioning system using its coolant.

[0137] In this embodiment, when the first temperature is lower than the third preset temperature, the vehicle controller can make full use of the waste heat of the engine and the three-electric system to provide a heat source for the air conditioning system according to the vehicle type and its driving mode, thereby reducing energy consumption.

[0138] The third implementation method involves the vehicle controller determining the vehicle type when the first temperature is lower than the third preset temperature; determining the operating mode of the air conditioning system and the driving mode of the vehicle when the vehicle type is a hybrid vehicle; and determining the air conditioning system fan speed based on the fourth temperature difference; and controlling the air conditioning system to turn on based on the operating mode, driving mode, and fan speed.

[0139] In this implementation, the process of the vehicle controller determining the working mode and drive mode is the same as in the second implementation above, and the process of determining the air conditioning system's fan speed is the same as in the first implementation above, so it will not be repeated here.

[0140] The process of controlling the air conditioning system to turn on based on the working mode, driving mode and wind speed can be as follows: when the working mode is heating mode and the driving mode of the hybrid vehicle is pure electric driving mode, the vehicle controller controls the air conditioning system to turn on based on the wind speed of the air conditioning system, and controls the three electric systems to provide heat to the air conditioning system through their coolant.

[0141] When the operating mode is cooling mode and the hybrid vehicle's drive mode is pure engine drive mode, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed, and controls the engine to provide heat to the air conditioning system using residual heat.

[0142] When the operating mode is cooling mode and the hybrid vehicle's drive mode is hybrid drive mode, the vehicle controller controls the air conditioning system to turn on based on the air conditioning system's fan speed, controls the engine to provide a heat source for the air conditioning system using its residual heat, and / or controls the three-electric system to provide a heat source for the air conditioning system using its coolant.

[0143] In this embodiment, when the first temperature is lower than the third preset temperature, the vehicle controller can fully utilize the waste heat from the engine and the three-electric system to provide a heat source for the air conditioning system, thereby reducing energy consumption, based on the vehicle type and its driving mode. Simultaneously, the vehicle controller can also determine the air conditioning system's fan speed based on the temperature difference between the second temperature inside the vehicle and the set temperature, and then activate the air conditioning system based on this fan speed. This way, the air conditioning system does not need to operate under high load, further reducing energy consumption.

[0144] In this embodiment of the application, when the first temperature is between the third preset temperature and the first preset temperature, the temperature inside the vehicle is not much different from the temperature outside the vehicle, and different users have different perceptions of temperature. In this case, the user can control the air conditioning system by himself.

[0145] In this embodiment, the vehicle controller can also provide feedback on the vehicle interior temperature to the user. This process can be as follows: before the user enters the vehicle, the vehicle controller can acquire the interior temperature in real time or periodically, send a feedback message to the terminal via the T-BOX, and the feedback message carries the interior temperature. The terminal then displays the feedback message, allowing the user to clearly know the interior temperature.

[0146] See Figure 3 The terminal acquires the vehicle's usage time and the air conditioning's set temperature, and sends these to the vehicle controller via the T-BOX. The outside temperature sensor sends the outside temperature to the vehicle controller, and the inside temperature sensor sends the inside temperature. Based on the outside temperature, inside temperature, usage time, and set temperature, the vehicle controller first controls the external air circulation fan to turn on and / or controls multiple windows to lower, and then controls the air conditioning system to turn on. Furthermore, the vehicle controller can also send feedback of the inside temperature to the terminal via the T-BOX. Additionally, it can send a notification message to the vehicle controller after the air conditioning system is turned on.

[0147] This application provides a vehicle air conditioning control method. When the outside temperature of the vehicle is higher than a first preset temperature, the method determines the rotation speed of the vehicle's external circulation fan based on the temperature difference between the inside and outside of the vehicle. After the external circulation fan runs at this speed for a period of time, the current temperature inside the vehicle is obtained. If the current temperature is still higher than the outside temperature, the rotation speed of the external circulation fan is adjusted. After the external circulation fan runs at the adjusted speed for a period of time, the air conditioning system is turned on. Therefore, this method turns on the external circulation fan before turning on the air conditioning system, thereby lowering the interior temperature to some extent. This prevents the air conditioning system from operating under high load, thus reducing vehicle energy consumption. Simultaneously, because the air conditioning system is turned on, the interior temperature is kept at a comfortable level. Therefore, this method can both reduce vehicle energy consumption and maintain a comfortable interior temperature.

[0148] Figure 4 This is a schematic diagram of the structure of a vehicle air conditioning control device provided in an embodiment of this application. See also... Figure 4 The device includes:

[0149] The first acquisition module 401 is used to acquire a first temperature and a second temperature, wherein the first temperature is the temperature outside the vehicle and the second temperature is the temperature inside the vehicle.

[0150] The first determining module 402 is used to determine the speed of the vehicle's external circulation fan based on the first temperature difference between the first temperature and the second temperature when the first temperature is greater than the first preset temperature.

[0151] The second acquisition module 403 is used to acquire the current temperature inside the vehicle when the external circulation fan has been running for a first preset time based on its rotation speed.

[0152] Adjustment module 404 is used to adjust the speed of the external circulation fan when the current temperature is higher than the first temperature;

[0153] The first control module 405 is used to control the air conditioning system to turn on when the external circulation fan has been running for a second preset time based on the adjusted speed.

[0154] In one possible implementation, the first determining module 402 is used to determine the rotation speed of the external circulation fan as a first rotation speed when the first temperature difference is less than a first preset difference; to determine the rotation speed of the external circulation fan as a second rotation speed when the first temperature difference is greater than the first preset difference and less than a second preset difference; and to determine the rotation speed of the external circulation fan as a third rotation speed when the first temperature difference is greater than the second preset difference; wherein the second preset difference is greater than the first preset difference, the third rotation speed is greater than the second rotation speed, and the second rotation speed is greater than the first rotation speed.

[0155] In another possible implementation, the first control module 405 is used to obtain the set temperature of the air conditioning system when the external circulation fan runs for a second preset time based on the adjusted speed; determine the working mode and fan speed of the air conditioning system based on the third temperature difference between the current temperature and the set temperature; and control the air conditioning system to start based on the working mode and fan speed of the air conditioning system.

[0156] In another possible implementation, the first control module 405 is used to determine the vehicle type when the external circulation fan has been running for a second preset time based on the adjusted speed; if the vehicle type is a hybrid vehicle, it determines the operating mode of the air conditioning system and the driving mode of the vehicle; and controls the air conditioning system to turn on based on the operating mode and the driving mode.

[0157] In another possible implementation, the device further includes:

[0158] The third acquisition module is used to acquire the rainfall signal detected by the rain sensor when the first temperature is greater than the second preset temperature, wherein the second preset temperature is greater than the first preset temperature.

[0159] The second control module is used to control multiple windows of the vehicle to their lowest positions when the rainfall signal indicates that there is no rain, and to control the speed of the external circulation fan to the third speed.

[0160] In another possible implementation, the device further includes:

[0161] The third acquisition module is used to acquire the set temperature of the air conditioning system when the first temperature is lower than the third preset temperature, wherein the third preset temperature is lower than the first preset temperature.

[0162] The second determining module is used to determine the operating mode and fan speed of the air conditioning system based on the fourth temperature difference between the second temperature and the set temperature.

[0163] The third control module is used to control the air conditioning system to start based on the operating mode and fan speed of the air conditioning system.

[0164] This application provides a vehicle air conditioning control device. When the outside temperature of the vehicle is higher than a first preset temperature, the device determines the speed of the vehicle's external circulation fan based on the temperature difference between the inside and outside of the vehicle. After the external circulation fan runs at this speed for a period of time, the device obtains the current temperature inside the vehicle. If the current temperature is still higher than the outside temperature, the device adjusts the speed of the external circulation fan. After the external circulation fan runs at the adjusted speed for a period of time, the device controls the air conditioning system to turn on. Therefore, this device turns on the external circulation fan before turning on the air conditioning system, thereby lowering the interior temperature to a certain extent. This prevents the air conditioning system from operating under high load, thus reducing vehicle energy consumption. Simultaneously, because the air conditioning system is turned on, the interior temperature is kept at a comfortable level. Therefore, this device can both reduce vehicle energy consumption and maintain a comfortable interior temperature.

[0165] It should be noted that the vehicle air conditioning control device provided in the above embodiments is only illustrated by the division of the above functional modules when running the application. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the vehicle air conditioning control device and the vehicle air conditioning control method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0166] Figure 5 This is a schematic diagram of the structure of a vehicle controller provided according to an embodiment of this application.

[0167] Typically, the vehicle controller 500 includes: a main control module 501, a CAN interface 502, a hard-wired input interface 503, and a hard-wired output interface 504. The main control module 501 is connected to the CAN interface 502, the hard-wired input interface 503, and the hard-wired output interface 504, respectively.

[0168] The main control module 501 typically includes a processor and memory. The processor may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor can be implemented using at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the vehicle's screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, which is used to handle computational operations related to machine learning. The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, a non-transitory computer-readable storage medium in the memory is used to store at least one piece of program code, which is executed by a processor to implement the vehicle air conditioning control method provided in the method embodiments of this application.

[0169] The CAN interface 502 may include a powertrain CAN interface, a motor CAN interface, and a diagnostic CAN interface. The powertrain CAN interface is used to communicate with the vehicle's powertrain module, the motor CAN interface is used to communicate with the vehicle's motor controller, and the diagnostic CAN interface is used to communicate with diagnostic equipment.

[0170] The hard-wired input interface 503 is used to receive hard-wired control signals. The hard-wired output interface 504 is used to send control commands to the vehicle's electronic control components, causing the vehicle's electronic control components to perform corresponding actions. The vehicle's electronic control components include a power management system, a motor controller, an on-board charger, and a body control system.

[0171] The main control module 501 can communicate with the vehicle's powertrain module, motor controller, and diagnostic equipment via the CAN interface 502, and generate control commands based on the hard-wired control signals received by the hard-wired input interface 503, so as to send the control commands to the vehicle's electronic control components via the hard-wired output interface 504.

[0172] Those skilled in the art will understand that Figure 5 The structure shown does not constitute a limitation on the vehicle controller 500, and may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0173] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one piece of program code that is loaded and executed by a processor to implement the vehicle air conditioning control method in the above embodiments.

[0174] In an exemplary embodiment, a computer program product is also provided, which stores at least one piece of program code, which is loaded and executed by a processor to implement the vehicle air conditioning control method in the above embodiments.

[0175] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0176] The above description is only for the purpose of enabling those skilled in the art to understand the technical solution of this application, and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vehicle air conditioning control method characterized by, The method comprises: obtaining a first temperature and a second temperature, the first temperature being a temperature outside a vehicle, and the second temperature being a temperature inside the vehicle; determining a first rotating speed of an outer circulating fan of the vehicle when the first temperature is greater than a first preset temperature, and a first temperature difference between the first temperature and the second temperature is less than a first preset difference; determining a second rotating speed of the outer circulating fan when the first temperature difference is greater than the first preset difference and less than a second preset difference; determining a third rotating speed of the outer circulating fan when the first temperature difference is greater than the second preset difference, the second preset difference being greater than the first preset difference, the third rotating speed being greater than the second rotating speed, and the second rotating speed being greater than the first rotating speed; obtaining a current temperature inside the vehicle when a running time of the outer circulating fan based on the rotating speed reaches a first preset time; adjusting the rotating speed of the outer circulating fan to the third rotating speed when the current temperature is greater than the first temperature, and the rotating speed of the outer circulating fan is the first rotating speed or the second rotating speed; keeping the rotating speed of the outer circulating fan unchanged when the current temperature is greater than the first temperature, and the rotating speed of the outer circulating fan is the third rotating speed; controlling an air conditioning system to start when a running time of the outer circulating fan based on the third rotating speed reaches a second preset time.

2. The method of claim 1, wherein, The controlling the air conditioning system to start when the running time of the outer circulating fan based on the third rotating speed reaches the second preset time comprises: obtaining a setting temperature of the air conditioning system when the running time of the outer circulating fan based on the third rotating speed reaches the second preset time; determining a working mode and a wind speed of the air conditioning system based on a third temperature difference between the current temperature and the setting temperature; controlling the air conditioning system to start based on the working mode and the wind speed of the air conditioning system.

3. The method of claim 1, wherein, The controlling the air conditioning system to start when the running time of the outer circulating fan based on the third rotating speed reaches the second preset time comprises: determining a vehicle type of the vehicle when the running time of the outer circulating fan based on the adjusted rotating speed reaches the second preset time; determining a working mode of the air conditioning system and a driving mode of the vehicle when the vehicle type is a hybrid vehicle; controlling the air conditioning system to start based on the working mode and the driving mode.

4. The method of claim 1, wherein, The method further comprises: obtaining a rain signal detected by a rain sensor when the first temperature is greater than a second preset temperature, the second preset temperature being greater than the first preset temperature; controlling a plurality of windows of the vehicle to be lowered to a lowest position, and controlling the rotating speed of the outer circulating fan to be the third rotating speed when the rain signal indicates that it is not raining.

5. The method of claim 1, wherein, The method further comprises: obtaining a setting temperature of the air conditioning system when the first temperature is less than a third preset temperature, the third preset temperature being less than the first preset temperature; determine a working mode and a wind speed of the air conditioning system based on a fourth temperature difference between the second temperature and the set temperature; control the air conditioning system to be turned on based on the working mode and the wind speed of the air conditioning system.

6. A vehicle air conditioning control device characterized by comprising: The device comprises: a first obtaining module configured to obtain a first temperature and a second temperature, the first temperature being a temperature outside a vehicle, and the second temperature being a temperature inside the vehicle; a first determining module configured to determine a first rotating speed of an external circulating fan of the vehicle in a case where the first temperature is greater than a first preset temperature, and a first temperature difference between the first temperature and the second temperature is less than a first preset difference; determine a second rotating speed of the external circulating fan in a case where the first temperature difference is greater than the first preset difference and less than a second preset difference; and determine a third rotating speed of the external circulating fan in a case where the first temperature difference is greater than the second preset difference, the second preset difference being greater than the first preset difference, the third rotating speed being greater than the second rotating speed, and the second rotating speed being greater than the first rotating speed; a second obtaining module configured to obtain a current temperature inside the vehicle in a case where a running time of the external circulating fan based on the rotating speed reaches a first preset time; an adjusting module configured to adjust the rotating speed of the external circulating fan to the third rotating speed in a case where the current temperature is greater than the first temperature, and the rotating speed of the external circulating fan is the first rotating speed or the second rotating speed; and keep the rotating speed of the external circulating fan unchanged in a case where the current temperature is greater than the first temperature, and the rotating speed of the external circulating fan is the third rotating speed; a first control module configured to control an air conditioning system to be turned on in a case where a running time of the external circulating fan based on the third rotating speed reaches a second preset time.

7. A vehicle control unit, characterized by, The vehicle controller comprises a main control module, the main control module comprises a processor and a memory, at least one program code is stored in the memory, the at least one program code is loaded and executed by the processor to realize the vehicle air conditioning control method in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, At least one program code is stored in the computer readable storage medium, the at least one program code is loaded and executed by the processor to realize the vehicle air conditioning control method in any one of claims 1 to 5.

9. A computer program product, characterised in that, At least one program code is stored in the computer program product, the at least one program code is loaded and executed by the processor to realize the vehicle air conditioning control method in any one of claims 1 to 5.

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