Vehicle air conditioner control method, device, storage medium and vehicle air conditioner

Abstract

The present invention discloses a vehicle air conditioner control method, device, storage medium and vehicle air conditioner, belonging to the field of air conditioner control technology. When the vehicle air conditioner on the vehicle turns on the cooling mode, the present invention detects the current temperature in the cabin and the current battery voltage of the vehicle in real time; when the current battery voltage is greater than the first preset voltage, it is judged whether the cabin is in the preset temperature state according to the current temperature, the preset temperature threshold and the set temperature of the vehicle air conditioner; when the cabin is in the preset temperature state, the set air outlet gear of the vehicle air conditioner is adjusted according to the current temperature and the preset temperature threshold, and it is judged whether the cabin is in the preset state according to the current temperature in the cabin, the preset temperature threshold and the set temperature of the vehicle air conditioner, and then the air outlet gear of the vehicle air conditioner is adjusted according to the difference between the current temperature and the preset temperature threshold, so as to quickly reduce the temperature in the cabin and improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner control, and in particular to a vehicle air conditioner control method, device, storage medium and vehicle air conditioner. Background Art

[0002] The DC-driven car air conditioner is driven by a 24V power supply and is directly applied in the car. When exposed to the sun for a long time, the actual temperature in the car cabin is extremely high. The existing car air conditioner wind speed and frequency control method is the same as that of the conventional air conditioner, which makes it impossible for the wind speed in the cockpit to circulate quickly, the cooling capacity is small, and the temperature cannot be reduced quickly.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a vehicle air conditioner control method, device, storage medium and vehicle air conditioner, aiming to solve the technical problem that the prior art vehicle air conditioner cannot quickly cool down the cockpit.

[0005] To achieve the above object, the present invention provides a vehicle air conditioner control method, the vehicle air conditioner control method comprising the following steps:

[0006] When the vehicle air conditioner on the vehicle is turned on in cooling mode, real-time detection of the current temperature in the vehicle cabin and the current battery voltage of the vehicle;

[0007] When the current battery voltage is greater than a first preset voltage, judging whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold, and a set temperature of the vehicle air conditioner; and

[0008] When the vehicle cabin is in the preset temperature state, the set air outlet gear of the vehicle air conditioner is adjusted according to the current temperature and the preset temperature threshold.

[0009] Optionally, judging whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner includes:

[0010] comparing the current temperature with a preset temperature threshold and a set temperature of the vehicle air conditioner respectively; and

[0011] When the current temperature is greater than the preset temperature threshold and the current temperature is greater than the set temperature of the vehicle air conditioner, it is determined that the vehicle cabin is in a preset temperature state.

[0012] Optionally, the adjusting the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold comprises:

[0013] Obtaining a temperature difference between the current temperature and the preset temperature threshold; and

[0014] The set air outlet gear of the vehicle air conditioner is adjusted according to the temperature difference.

[0015] Optionally, when the current battery voltage is greater than a first preset voltage, after judging whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner, the method further includes:

[0016] When the vehicle cabin is not at the preset temperature state, the vehicle air conditioner is controlled to perform cooling operation according to the set air outlet gear.

[0017] Optionally, when the vehicle air conditioner on the vehicle is in cooling mode, after real-time detection of the current temperature in the vehicle cabin and the current battery voltage of the vehicle, the method further includes:

[0018] When the current battery voltage is not greater than the first preset voltage, determining whether the current battery voltage is greater than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage;

[0019] When the current battery voltage is greater than the second preset voltage, adjusting the current compressor frequency of the vehicle air conditioner according to a first preset frequency control coefficient; and

[0020] When the current battery voltage is less than or equal to the second preset voltage, a low battery warning prompt is issued, and the vehicle air conditioner is controlled to stop cooling operation.

[0021] Optionally, when the vehicle cabin is in the preset temperature state, after adjusting the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold, the method further includes:

[0022] When it is detected that the vehicle cabin is in a thermally stable state, obtaining a current temperature in the vehicle cabin and a current battery voltage of the vehicle; and

[0023] The current compressor frequency of the vehicle air conditioner is adjusted according to the current temperature and the current battery voltage.

[0024] Optionally, adjusting the current compressor frequency of the vehicle air conditioner according to the current temperature and the current battery voltage includes:

[0025] Comparing the current temperature with a preset temperature threshold and a set temperature of the vehicle air conditioner respectively, and detecting whether the current battery voltage is less than a third preset voltage, wherein the third preset voltage is greater than the first preset voltage; and

[0026] When the current temperature is greater than the set temperature and less than the preset temperature threshold, and the current battery voltage is less than the third preset voltage, the current compressor frequency of the vehicle air conditioner is adjusted according to a second preset frequency control coefficient.

[0027] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle air conditioner control device, the vehicle air conditioner control device comprising:

[0028] A detection module, used for detecting the current temperature in the vehicle cabin and the current battery voltage of the vehicle in real time when the vehicle air conditioner is turned on in cooling mode;

[0029] a judgment module, configured to judge whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner when the current battery voltage is greater than a first preset voltage;

[0030] The adjustment module is used to adjust the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold when the vehicle cabin is in the preset temperature state.

[0031] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle air conditioner, which includes: a memory, a processor, and a vehicle air conditioner control program stored in the memory and executable on the processor, and the vehicle air conditioner control program is configured to implement the steps of the vehicle air conditioner control method described above.

[0032] In addition, to achieve the above purpose, the present invention also proposes a storage medium, on which a vehicle air conditioner control program is stored. When the vehicle air conditioner control program is executed by a processor, the steps of the vehicle air conditioner control method described above are implemented.

[0033] When the vehicle air conditioner on the vehicle turns on the cooling mode, the present invention detects the current temperature in the cabin and the current battery voltage of the vehicle in real time; when the current battery voltage is greater than a first preset voltage, it is determined whether the cabin is in a preset temperature state according to the current temperature, the preset temperature threshold and the set temperature of the vehicle air conditioner; when the cabin is in the preset temperature state, the set air outlet gear of the vehicle air conditioner is adjusted according to the current temperature and the preset temperature threshold, and whether the cabin is in the preset state is determined by the current temperature in the cabin, the preset temperature threshold and the set temperature of the vehicle air conditioner, and then the air outlet gear of the vehicle air conditioner is adjusted according to the difference between the current temperature and the preset temperature threshold, which can quickly reduce the temperature in the cabin and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a structural diagram of a vehicle air conditioner in a hardware operating environment involved in an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of a flow chart of a first embodiment of a vehicle air conditioner control method of the present invention;

[0036] Figure 3 A schematic flow chart of a second embodiment of a vehicle air conditioner control method according to the present invention;

[0037] Figure 4 A schematic flow chart of a third embodiment of a vehicle air conditioner control method according to the present invention;

[0038] Figure 5 It is a structural block diagram of the first embodiment of the vehicle air conditioner control device of the present invention.

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0041] Reference Figure 1 , Figure 1 The schematic diagram of the structure of the vehicle air conditioner in the hardware operating environment involved in the embodiment of the present invention.

[0042] like Figure 1As shown, the vehicle air conditioner may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0043] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the vehicle air conditioner, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0044] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a vehicle air conditioner control program.

[0045] exist Figure 1 In the vehicle air conditioner shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the vehicle air conditioner of the present invention can be set in the vehicle air conditioner, and the vehicle air conditioner calls the vehicle air conditioner control program stored in the memory 1005 through the processor 1001, and executes the vehicle air conditioner control method provided by the embodiment of the present invention.

[0046] The embodiment of the present invention provides a vehicle air conditioner control method, referring to Figure 2 , Figure 2 The figure is a flow chart of a first embodiment of a vehicle air conditioner control method according to the present invention.

[0047] In this embodiment, the vehicle air conditioner control method includes the following steps:

[0048] Step S10: When the vehicle air conditioner on the vehicle is turned on in cooling mode, the current temperature in the vehicle cabin and the current battery voltage of the vehicle are detected in real time.

[0049] It should be noted that the executor of this embodiment can be a vehicle air-conditioner control device, and the vehicle air-conditioner control device can be an electronic device such as a personal computer, a server or a vehicle terminal, or other controllers and devices that can achieve the same or similar functions. This embodiment does not limit this. In this embodiment and the following embodiments, the vehicle air-conditioner control method of the present invention is explained by taking the vehicle terminal as an example.

[0050] In this embodiment, the vehicle air conditioner is an air conditioner installed on the vehicle, which can adjust the ambient temperature in the cabin to provide a comfortable environment for the passengers in the vehicle. The vehicle air conditioner adjusts the ambient temperature based on the control instructions issued by the vehicle terminal. After the vehicle air conditioner receives the control instructions issued by the vehicle terminal, the ambient temperature in the cabin is increased or decreased according to the control instructions. The control instructions issued by the vehicle terminal to the vehicle air conditioner are based on the ambient temperature in the cabin detected by the vehicle sensor, and the corresponding control instructions are issued according to the ambient temperature. It should also be noted that in this embodiment, the vehicle terminal, the vehicle air conditioner and the vehicle sensor communicate through the controller area network (CAN) to realize data transmission. It should be noted that the vehicle sensor can not only detect the current ambient temperature in the cabin, but also detect the current battery voltage of the vehicle, and then send the detected temperature and battery voltage to the vehicle terminal.

[0051] In a specific implementation, the vehicle terminal can also send a control instruction to the vehicle air conditioner according to the temperature set by the user. Assuming that the user sets the ambient temperature to 26°, the vehicle terminal sends a corresponding control instruction to the vehicle air conditioner to adjust the temperature in the cabin to 26°. Furthermore, in this embodiment, a preset time can be set. When the preset time is reached, the vehicle terminal automatically sends a control instruction to the vehicle air conditioner to adjust the temperature in the cabin. In this embodiment, the vehicle terminal can also control the vehicle air conditioner to adjust the temperature in the cabin in other ways. It can be set accordingly according to actual conditions, and this embodiment does not limit this.

[0052] Step S20: When the current battery voltage is greater than a first preset voltage, judging whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner.

[0053] It should be noted that when the vehicle air conditioner turns on the cooling mode to cool the ambient temperature in the cabin, the vehicle battery will consume power, thereby affecting the battery voltage. When the battery power is low, the corresponding battery voltage will also drop. In this embodiment, after the battery voltage of the battery is obtained, the current battery voltage is compared with the first preset voltage to determine whether the battery power is sufficient at this time. The first preset voltage in this implementation is the voltage corresponding to the sufficient battery power. If the current battery voltage is greater than the voltage corresponding to the sufficient battery power after comparison, it means that the battery power is sufficient at this time. If the current battery voltage is less than the first preset voltage, it means that the battery power is not sufficient at this time. The first preset voltage can be set according to the performance parameters of the vehicle battery, and this embodiment does not limit this.

[0054] In a specific implementation, if it is detected that the current voltage is greater than the first preset voltage corresponding to the battery power, the preset temperature threshold and the set temperature of the vehicle air conditioner are obtained, and then the current temperature, set temperature and preset temperature threshold detected in the vehicle cabin are used to determine whether the vehicle cabin is in the preset temperature state. In this embodiment, the set temperature of the vehicle air conditioner is the temperature set by the user, and the preset temperature threshold is the temperature environment corresponding to the preset temperature state. The preset temperature threshold can be set accordingly according to actual needs. For example, if the preset temperature state is a high temperature state, the preset temperature threshold can be set to 35°, or it can be set to other temperature values. It should also be emphasized that the preset temperature threshold can be greater than the current temperature in the vehicle cabin detected by the sensor, and can also be less than the current temperature in the vehicle cabin detected by the sensor. This embodiment is not limited to this and can be set accordingly according to actual needs. In this embodiment, it can be determined whether the vehicle cabin is in the preset temperature state based on the temperature difference between the current temperature and the preset temperature threshold, or the temperature difference between the current temperature and the set temperature of the vehicle air conditioner.

[0055] Furthermore, in order to more accurately judge whether the cabin is in a preset temperature state, in this embodiment, the current temperature is compared with the preset temperature threshold, and then the current temperature is compared with the set temperature of the vehicle air conditioner. The preset temperature state in this embodiment includes a high temperature state. Whether the cabin is in a high temperature state is judged based on the two temperature comparison results. If the current temperature is greater than the preset temperature threshold, and the current temperature is also greater than the set temperature of the vehicle air conditioner, it is determined that the cabin is in a preset temperature state. For example, assuming that the set temperature of the vehicle air conditioner is 26°, the current temperature of the cabin obtained is 32°, and the preset temperature threshold is 35°. According to the comparison, it can be obtained that the current temperature is greater than the set temperature of the vehicle air conditioner, but the current temperature is less than the preset temperature threshold. At this time, the cabin is not in the preset temperature state, that is, the high temperature state. Assuming that the preset temperature threshold is 30°, it can be obtained that the current temperature is greater than the set temperature of the vehicle air conditioner and the preset temperature threshold at the same time. At this time, it can be determined that the cabin is in a preset temperature state, that is, the high temperature state.

[0056] Step S30: When the vehicle cabin is in the preset temperature state, adjusting the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold.

[0057] In a specific implementation, if it is detected that the cabin is in a preset temperature state, that is, a high temperature state, it means that the temperature in the cabin is high at this time. In order to lower the ambient temperature of the cabin, in this embodiment, the vehicle air conditioner can be set according to the current temperature and the preset temperature threshold corresponding to the high temperature state to quickly cool the cabin. The set air outlet gear of the vehicle air conditioner can be set accordingly according to actual needs. This embodiment is not limited to this. This embodiment can adjust the set air outlet gear of the vehicle air conditioner according to the corresponding relationship between the current temperature, the preset temperature threshold and the air outlet gear, and can also adjust the set air outlet gear of the vehicle air conditioner in other ways.

[0058] Furthermore, in order to accurately adjust the set air outlet gear of the vehicle air conditioner and improve the cooling effect of the vehicle air conditioner, in this embodiment, after obtaining the current temperature and the preset temperature threshold, the temperature difference between the current temperature and the preset temperature threshold is calculated, and then the corresponding target air outlet gear is determined according to the temperature difference, and finally the set air outlet gear of the vehicle air conditioner is adjusted according to the target air outlet gear. Specifically, after obtaining the temperature difference, the air outlet gear adjustment coefficient is determined according to the temperature difference and the preset difference threshold, and the air outlet gear adjustment coefficient can be calculated according to the following formula, which is n = (T1-T0) / ΔT, where n is the air outlet gear adjustment coefficient, T1 is the current temperature in the cabin, T0 is the preset temperature threshold, and ΔT is the preset difference threshold. Furthermore, after obtaining the air outlet gear adjustment coefficient, the target air outlet gear can be calculated according to the following formula: IR = IRset + n * IR0, where IR is the target air outlet gear, IRset is the set air outlet gear, n is the air outlet gear adjustment coefficient, and IR0 is the gear adjustment step. IR0 can be set accordingly according to the actual air outlet gear adjustment requirements. After obtaining the target air outlet gear, the set air outlet gear can be raised to the target air outlet gear to achieve rapid cabin cooling. It can be understood that the air outlet gear has a corresponding maximum value, namely IR max After obtaining the target air outlet position IR, the target air outlet position IR and IR max Compare, if the target air outlet position IR is less than IR max , the set air outlet position of the vehicle air conditioner is adjusted according to the target air outlet position IR. If the target air outlet position IR is greater than IR max , then according to IR max Adjust the air outlet setting of the vehicle air conditioner to ensure that the vehicle air conditioner is running while reducing battery power consumption.

[0059] It can be understood that if the cabin is in a preset temperature state, that is, the cabin is not in a high temperature state, in order to reduce the loss of battery power and increase the endurance, in this embodiment, when the cabin is not in a high temperature state, the vehicle air conditioner is controlled to perform cooling operation according to the set air outlet gear of the vehicle air conditioner to reduce the temperature in the cabin.

[0060] This embodiment determines whether the cabin is in a preset state through the current temperature in the cabin, the preset temperature threshold and the set temperature of the vehicle air conditioner, and then adjusts the air outlet gear of the vehicle air conditioner according to the difference between the current temperature and the preset temperature threshold, which can quickly reduce the temperature in the cabin and improve the user experience.

[0061] refer to Figure 3 , Figure 3 The figure is a flow chart of a second embodiment of a vehicle air conditioner control method according to the present invention.

[0062] Based on the first embodiment, the vehicle air conditioner control method of this embodiment further includes, after step S10:

[0063] Step S101: when the current battery voltage is not greater than a first preset voltage, determining whether the current battery voltage is greater than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage.

[0064] It is easy to understand that the first preset voltage is the battery voltage corresponding to when the battery power is sufficient. If the current battery voltage is not greater than the battery voltage corresponding to when the battery power is sufficient, it means that the battery power is insufficient. If the battery power is too low, the operation of the vehicle air conditioner needs to be stopped. In this embodiment, the second preset voltage indicates the battery voltage corresponding to the operation of the vehicle air conditioner needs to be controlled. The second preset voltage can be set accordingly according to the performance parameters of the vehicle battery. This embodiment is not limited to this, and it should be noted that the second preset voltage is less than the first preset voltage. When the battery power is insufficient, continue to detect whether the battery voltage is greater than the second preset voltage.

[0065] Step S102: When the current battery voltage is greater than the second preset voltage, the current compressor frequency of the vehicle air conditioner is adjusted according to a first preset frequency control coefficient.

[0066] It should be noted that if it is detected that the battery voltage is greater than the battery voltage corresponding to the need to control the operation of the vehicle air conditioner, it means that even if the battery power is not sufficient at this time, it is not necessary to stop the operation of the vehicle air conditioner, and the vehicle air conditioner can still support the vehicle air conditioner to cool the current temperature in the cabin. At this time, the air outlet gear is not adjusted in this embodiment, but the frequency of the compressor in the vehicle air conditioner is adjusted. Specifically, the current compressor frequency in the cooling mode is first obtained, and then adjusted according to the corresponding adjustment coefficient. In this embodiment, the current compressor frequency can be adjusted to the target compressor frequency according to the first preset frequency coefficient, and can be adjusted according to the following frequency adjustment formula. The frequency adjustment formula is FR=k1Fr, k1<1, where FR is the target compressor frequency, that is, the adjusted current compressor frequency, k1 is the first preset frequency adjustment coefficient, Fr is the current compressor frequency, k1 is less than 1, and the specific coefficient value of k1 can be set accordingly according to the actual situation, and this embodiment does not limit this.

[0067] Step S103: When the current battery voltage is less than or equal to the second preset voltage, a low battery warning prompt is issued, and the vehicle air conditioner is controlled to stop cooling operation.

[0068] It should be noted that if the battery voltage is detected to be less than or equal to the second preset voltage, it means that the battery power is insufficient and it is difficult to continue to support the cooling operation of the vehicle air conditioner. In order to improve the battery life, the vehicle air conditioner needs to be stopped at this time, and after the vehicle air conditioner stops running, a corresponding prompt message will be output to remind the driver that the current vehicle is in a low-battery state and needs to be charged in time. In this embodiment, the alarm prompt can be given by a flashing red indicator light on the vehicle terminal, or by a voice message. It can be set accordingly according to actual needs, and this implementation does not impose any restrictions on this.

[0069] This embodiment compares the current battery voltage with the second preset voltage when the current battery voltage is not greater than the first preset voltage to determine whether the insufficient battery power can continue to support the cooling operation of the vehicle air conditioner. If so, the current compressor frequency of the vehicle air conditioner is controlled; if not, the operation of the vehicle air conditioner is stopped, thereby improving the battery life of the vehicle.

[0070] refer to Figure 4 , Figure 4 The figure is a flow chart of a third embodiment of a vehicle air conditioner control method according to the present invention.

[0071] Based on the above first embodiment, a third embodiment of a vehicle air conditioner control method of the present invention is proposed.

[0072] In this embodiment, after step S30, the following steps are further included:

[0073] Step S40: when it is detected that the vehicle cabin is in a thermally stable state, obtaining a current temperature in the vehicle cabin and a current battery voltage of the vehicle.

[0074] In a specific implementation, due to the presence of sheet metal and large-area glass in the cabin, the heat leakage and radiation heat are relatively large compared to the home use environment. If the user sets a lower temperature, it is impossible to ensure that the temperature in the cabin reaches the temperature set by the user. This will cause the vehicle air conditioner to be in high-frequency operation for a long time, greatly reducing the battery life of the vehicle. In order to avoid this situation, after adjusting the set air outlet gear of the vehicle air conditioner, this embodiment will detect whether the cabin is in a thermally stable state, that is, the temperature in the cabin no longer fluctuates greatly. In this embodiment, it is determined whether the cabin is in a thermally stable state based on the current temperature in the cabin. Specifically, after obtaining the current temperature, the current temperature and the preset temperature constant are differenced, and then the obtained difference is compared with the preset difference threshold. For example, T1 is the current temperature, the preset temperature constant is 1, and the preset difference threshold is ΔT. T1-1 is compared with ΔT. If T1-1>ΔT, it can be determined that the cabin is not in a thermally stable state. If T1-1<ΔT, it can be determined that the cabin is in a thermally stable state.

[0075] Step S50: adjusting the current compressor frequency of the vehicle air conditioner according to the current temperature and the current battery voltage.

[0076] In a specific implementation, after obtaining the current temperature and the current battery voltage, in this embodiment, the current compressor of the vehicle air conditioner can be adjusted according to the correspondence between the current temperature, the current battery voltage and the compressor frequency. The current compressor frequency can also be adjusted in other ways, which is not limited in this embodiment.

[0077] Furthermore, in order to improve the accuracy of compressor frequency adjustment and ensure the battery life, in this embodiment, the current battery voltage is compared with the first preset voltage and the third preset voltage. The third preset voltage is the maximum voltage of the battery. If the battery voltage is greater than the battery voltage corresponding to when the battery is fully charged and is less than the maximum voltage of the battery, it means that the battery is in a voltage limiting state at this time.

[0078] Further, after determining that the battery is in a voltage-limited state, it is determined whether the current temperature meets the conditions. If the current temperature meets the conditions and the battery is in a voltage-limited state, the compressor frequency is adjusted according to the corresponding adjustment coefficient.

[0079] In the specific implementation, in this embodiment, the current compressor frequency can be adjusted to the target compressor frequency according to the second preset frequency coefficient, and can be adjusted according to the following frequency adjustment formula, such as FR=k2Fr, k2<1, where FR is the target compressor frequency, that is, the adjusted current compressor frequency, k2 is the second preset frequency adjustment coefficient, Fr is the current compressor frequency, k2 is less than 1, and the specific coefficient value of k2 can be set accordingly according to the actual situation, and this embodiment does not limit this. In addition, it should be noted that before judging whether the current temperature meets the conditions, it is also necessary to judge whether the current temperature is in the preset comfort range, and the preset comfort range can be set according to the user setting, and this embodiment does not limit this. For example, assuming that the preset comfort range is 24°~28°, the current temperature is 27°, the set temperature of the vehicle air conditioner is 26°, and the preset temperature threshold is 30°. At this time, the current temperature is within the preset comfort range, and the current temperature is greater than the set temperature and less than the preset temperature threshold. If the battery voltage is in a voltage-limited state at this time, the current compressor frequency can be adjusted in the above manner.

[0080] When the present embodiment detects that the vehicle cabin is in a thermally stable state, the current temperature in the vehicle cabin and the current battery voltage of the vehicle are obtained; when the vehicle cabin is in a thermally stable state, the compressor frequency of the vehicle air conditioner is adjusted, thereby improving the battery life of the vehicle.

[0081] In addition, an embodiment of the present invention further provides a storage medium on which a vehicle air conditioner control program is stored. When the vehicle air conditioner control program is executed by a processor, the steps of the vehicle air conditioner control method described above are implemented.

[0082] Reference Figure 5 , Figure 5 It is a structural block diagram of the first embodiment of the vehicle air conditioner control device of the present invention.

[0083] like Figure 5 As shown, the vehicle air conditioner control device proposed in the embodiment of the present invention includes:

[0084] The detection module 10 is used to detect the current temperature in the vehicle cabin and the current battery voltage of the vehicle in real time when the vehicle air conditioner is turned on in the cooling mode.

[0085] In this embodiment, the vehicle air conditioner is an air conditioner installed on the vehicle, which can adjust the ambient temperature in the cabin to provide a comfortable environment for the passengers in the vehicle. The vehicle air conditioner adjusts the ambient temperature based on the control instruction issued by the vehicle air conditioner control device. After the vehicle air conditioner receives the control instruction issued by the vehicle air conditioner control device, the ambient temperature in the cabin is increased or decreased according to the control instruction. The control instruction issued by the vehicle air conditioner control device to the vehicle air conditioner is based on the ambient temperature in the cabin detected by the vehicle sensor, and the corresponding control instruction is issued according to the ambient temperature. It should also be noted that in this embodiment, the vehicle air conditioner control device, the vehicle air conditioner and the vehicle sensor communicate through the controller area network (CAN) to realize data transmission. It should be noted that the vehicle sensor can not only detect the current ambient temperature in the cabin, but also detect the current battery voltage of the vehicle, and then send the detected temperature and battery voltage to the vehicle air conditioner control device.

[0086] In a specific implementation, the vehicle air conditioner control device can also send a control instruction to the vehicle air conditioner according to the temperature set by the user. Assuming that the user sets the ambient temperature to 26°, the vehicle air conditioner control device sends a corresponding control instruction to the vehicle air conditioner to adjust the temperature in the vehicle cabin to 26°. Furthermore, in this embodiment, a preset time can also be set. When the preset time is reached, the vehicle air conditioner control device automatically sends a control instruction to the vehicle air conditioner to adjust the temperature in the vehicle cabin. In this embodiment, the vehicle air conditioner control device can also control the vehicle air conditioner to adjust the temperature in the vehicle cabin in other ways. It can be set accordingly according to actual conditions, and this embodiment does not limit this.

[0087] The judgment module 20 is used to judge whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner when the current battery voltage is greater than a first preset voltage.

[0088] It should be noted that when the vehicle air conditioner turns on the cooling mode to cool the ambient temperature in the cabin, the vehicle battery will consume power, thereby affecting the battery voltage. When the battery power is low, the corresponding battery voltage will also drop. In this embodiment, after the battery voltage of the battery is obtained, the current battery voltage is compared with the first preset voltage to determine whether the battery power is sufficient at this time. The first preset voltage in this implementation is the voltage corresponding to the sufficient battery power. If the current battery voltage is greater than the voltage corresponding to the sufficient battery power after comparison, it means that the battery power is sufficient at this time. If the current battery voltage is less than the first preset voltage, it means that the battery power is not sufficient at this time. The first preset voltage can be set according to the performance parameters of the vehicle battery, and this embodiment does not limit this.

[0089] In a specific implementation, if it is detected that the current voltage is greater than the first preset voltage corresponding to the battery power, the preset temperature threshold and the set temperature of the vehicle air conditioner are obtained, and then the current temperature, set temperature and preset temperature threshold detected in the vehicle cabin are used to determine whether the vehicle cabin is in the preset temperature state. In this embodiment, the set temperature of the vehicle air conditioner is the temperature set by the user, and the preset temperature threshold is the temperature environment corresponding to the preset temperature state. The preset temperature threshold can be set accordingly according to actual needs. For example, if the preset temperature state is a high temperature state, the preset temperature threshold can be set to 35°, or it can be set to other temperature values. It should also be emphasized that the preset temperature threshold can be greater than the current temperature in the vehicle cabin detected by the sensor, and can also be less than the current temperature in the vehicle cabin detected by the sensor. This embodiment is not limited to this and can be set accordingly according to actual needs. In this embodiment, it can be determined whether the vehicle cabin is in the preset temperature state based on the temperature difference between the current temperature and the preset temperature threshold, or the temperature difference between the current temperature and the set temperature of the vehicle air conditioner.

[0090] Furthermore, in order to more accurately judge whether the cabin is in a preset temperature state, in this embodiment, the current temperature is compared with the preset temperature threshold, and then the current temperature is compared with the set temperature of the vehicle air conditioner. The preset temperature state in this embodiment includes a high temperature state. Whether the cabin is in a high temperature state is judged based on the two temperature comparison results. If the current temperature is greater than the preset temperature threshold, and the current temperature is also greater than the set temperature of the vehicle air conditioner, it is determined that the cabin is in a preset temperature state. For example, assuming that the set temperature of the vehicle air conditioner is 26°, the current temperature of the cabin obtained is 32°, and the preset temperature threshold is 35°. According to the comparison, it can be obtained that the current temperature is greater than the set temperature of the vehicle air conditioner, but the current temperature is less than the preset temperature threshold. At this time, the cabin is not in the preset temperature state, that is, the high temperature state. Assuming that the preset temperature threshold is 30°, it can be obtained that the current temperature is greater than the set temperature of the vehicle air conditioner and the preset temperature threshold at the same time. At this time, it can be determined that the cabin is in a preset temperature state, that is, the high temperature state.

[0091] The adjustment module 30 is used to adjust the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold when the vehicle cabin is in the preset temperature state.

[0092] In a specific implementation, if it is detected that the cabin is in a preset temperature state, that is, a high temperature state, it means that the temperature in the cabin is high at this time. In order to lower the ambient temperature of the cabin, in this embodiment, the vehicle air conditioner can be set according to the current temperature and the preset temperature threshold corresponding to the high temperature state to quickly cool the cabin. The set air outlet gear of the vehicle air conditioner can be set accordingly according to actual needs. This embodiment is not limited to this. This embodiment can adjust the set air outlet gear of the vehicle air conditioner according to the corresponding relationship between the current temperature, the preset temperature threshold and the air outlet gear, and can also adjust the set air outlet gear of the vehicle air conditioner in other ways.

[0093] Furthermore, in order to accurately adjust the set air outlet gear of the vehicle air conditioner and improve the cooling effect of the vehicle air conditioner, in this embodiment, after obtaining the current temperature and the preset temperature threshold, the temperature difference between the current temperature and the preset temperature threshold is calculated, and then the corresponding target air outlet gear is determined according to the temperature difference, and finally the set air outlet gear of the vehicle air conditioner is adjusted according to the target air outlet gear. Specifically, after obtaining the temperature difference, the air outlet gear adjustment coefficient is determined according to the temperature difference and the preset difference threshold, and the air outlet gear adjustment coefficient can be calculated according to the following formula, which is n = (T1-T0) / ΔT, where n is the air outlet gear adjustment coefficient, T1 is the current temperature in the cabin, T0 is the preset temperature threshold, and ΔT is the preset difference threshold. Furthermore, after obtaining the air outlet gear adjustment coefficient, the target air outlet gear can be calculated according to the following formula: IR = IRset + n * IR0, where IR is the target air outlet gear, IRset is the set air outlet gear, n is the air outlet gear adjustment coefficient, and IR0 is the gear adjustment step. IR0 can be set accordingly according to the actual air outlet gear adjustment requirements. After obtaining the target air outlet gear, the set air outlet gear can be raised to the target air outlet gear to achieve rapid cabin cooling. It can be understood that the air outlet gear has a corresponding maximum value, namely IR max After obtaining the target air outlet position IR, the target air outlet position IR and IR max Compare, if the target air outlet position IR is less than IR max , the set air outlet position of the vehicle air conditioner is adjusted according to the target air outlet position IR. If the target air outlet position IR is greater than IR max , then according to IR max Adjust the air outlet setting of the vehicle air conditioner to ensure that the vehicle air conditioner is running while reducing battery power consumption.

[0094] It can be understood that if the cabin is in a preset temperature state, that is, the cabin is not in a high temperature state, in order to reduce the loss of battery power and increase the endurance, in this embodiment, when the cabin is not in a high temperature state, the vehicle air conditioner is controlled to perform cooling operation according to the set air outlet gear of the vehicle air conditioner to reduce the temperature in the cabin.

[0095] This embodiment compares the current battery voltage with the second preset voltage when the current battery voltage is not greater than the first preset voltage to determine whether the insufficient battery power can continue to support the cooling operation of the vehicle air conditioner. If so, the current compressor frequency of the vehicle air conditioner is controlled; if not, the operation of the vehicle air conditioner is stopped, thereby improving the battery life of the vehicle.

[0096] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0097] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0098] In addition, for technical details that are not described in detail in this embodiment, reference can be made to the vehicle air conditioner control method provided in any embodiment of the present invention, and will not be repeated here.

[0099] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0100] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0101] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0102] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vehicle air conditioner control method, characterized in that: The vehicle air conditioner control method comprises: When the vehicle air conditioner on the vehicle is turned on in cooling mode, real-time detection of the current temperature in the vehicle cabin and the current battery voltage of the vehicle; When the current battery voltage is greater than a first preset voltage, judging whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner; When the vehicle cabin is in the preset temperature state, adjusting the set air outlet position of the vehicle air conditioner according to the current temperature and the preset temperature threshold; The determining whether the vehicle cabin is in a preset temperature state according to the current temperature, the preset temperature threshold and the set temperature of the vehicle air conditioner includes: Comparing the current temperature with a preset temperature threshold and a set temperature of the vehicle air conditioner respectively; When the current temperature is greater than the preset temperature threshold and the current temperature is greater than the set temperature of the vehicle air conditioner, determining that the vehicle cabin is in a preset temperature state; The adjusting the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold comprises: Obtaining a temperature difference between the current temperature and the preset temperature threshold; Determine an air outlet gear adjustment coefficient according to the temperature difference and a preset temperature threshold, and determine a target air outlet gear according to the air outlet gear adjustment coefficient; The set air outlet gear of the vehicle air conditioner is adjusted according to the target air outlet gear.

2. The vehicle air conditioner control method according to claim 1, characterized in that: When the current battery voltage is greater than the first preset voltage, after judging whether the vehicle cabin is in a preset temperature state according to the current temperature, the preset temperature threshold and the set temperature of the vehicle air conditioner, the method further includes: When the vehicle cabin is not at the preset temperature state, the vehicle air conditioner is controlled to perform cooling operation according to the set air outlet gear.

3. The vehicle air conditioner control method according to claim 1 or 2, characterized in that: When the vehicle air conditioner on the vehicle is in cooling mode, after real-time detection of the current temperature in the vehicle cabin and the current battery voltage of the vehicle, the method further includes: When the current battery voltage is not greater than the first preset voltage, determining whether the current battery voltage is greater than a second preset voltage, wherein the first preset voltage is greater than the second preset voltage; When the current battery voltage is greater than the second preset voltage, adjusting the current compressor frequency of the vehicle air conditioner according to a first preset frequency control coefficient; and When the current battery voltage is less than or equal to the second preset voltage, a low battery warning prompt is issued, and the vehicle air conditioner is controlled to stop cooling operation.

4. The vehicle air conditioner control method according to claim 1 or 2, characterized in that: When the vehicle cabin is at the preset temperature state, after adjusting the set air outlet gear of the vehicle air conditioner according to the current temperature and the preset temperature threshold, the method further includes: When it is detected that the vehicle cabin is in a thermally stable state, obtaining a current temperature in the vehicle cabin and a current battery voltage of the vehicle; and The current compressor frequency of the vehicle air conditioner is adjusted according to the current temperature and the current battery voltage.

5. The vehicle air conditioner control method according to claim 4, characterized in that: The adjusting the current compressor frequency of the vehicle air conditioner according to the current temperature and the current battery voltage includes: Comparing the current temperature with a preset temperature threshold and a set temperature of the vehicle air conditioner respectively, and detecting whether the current battery voltage is less than a third preset voltage, wherein the third preset voltage is greater than the first preset voltage; and When the current temperature is greater than the set temperature and less than the preset temperature threshold, and the current battery voltage is less than the third preset voltage, the current compressor frequency of the vehicle air conditioner is adjusted according to a second preset frequency control coefficient.

6. A vehicle air conditioner control device, characterized in that: The vehicle air conditioner control device comprises: A detection module, used for detecting the current temperature in the vehicle cabin and the current battery voltage of the vehicle in real time when the vehicle air conditioner is turned on in cooling mode; a judgment module, configured to judge whether the vehicle cabin is in a preset temperature state according to the current temperature, a preset temperature threshold and a set temperature of the vehicle air conditioner when the current battery voltage is greater than a first preset voltage; an adjustment module, configured to adjust the set air outlet position of the vehicle air conditioner according to the current temperature and the preset temperature threshold when the vehicle cabin is in the preset temperature state; The judgment module is further used to compare the current temperature with a preset temperature threshold and a set temperature of the vehicle air conditioner respectively; when the current temperature is greater than the preset temperature threshold and the current temperature is greater than the set temperature of the vehicle air conditioner, it is determined that the vehicle cabin is in a preset temperature state; The adjustment module is also used to obtain the temperature difference between the current temperature and the preset temperature threshold; determine the air outlet gear adjustment coefficient according to the temperature difference and the preset temperature threshold, and determine the target air outlet gear according to the air outlet gear adjustment coefficient; and adjust the set air outlet gear of the vehicle air conditioner according to the target air outlet gear.

7. A vehicle air conditioner, characterized in that: The vehicle air conditioner comprises: a memory, a processor and a vehicle air conditioner control program stored in the memory and executable on the processor, wherein the vehicle air conditioner control program is configured to implement the vehicle air conditioner control method according to any one of claims 1 to 5.

8. A storage medium, characterized in that: The storage medium stores a vehicle air conditioner control program, and when the vehicle air conditioner control program is executed by the processor, the vehicle air conditioner control method according to any one of claims 1 to 5 is implemented.

Images