Vehicle air conditioning system control method and device, electronic equipment and storage medium

Abstract

The application discloses a vehicle air conditioning system control method and device, electronic equipment and storage medium, belongs to the technical field of vehicle control, and the air conditioning system comprises a fan, an air conditioning switch and an air conditioning pressure switch. The control method comprises the following steps: obtaining a trigger signal of the air conditioning switch; when the trigger signal is received, controlling the fan to work at a first rotating speed for a preset time length; obtaining a first opening duty cycle of the air conditioning pressure switch within the preset time length; and adjusting the rotating speed of the fan based on the first opening duty cycle and a preset adjustment amount. After receiving the trigger signal of the air conditioning switch, the fan is controlled to work at a set first rotating speed for a preset time length, and then the rotating speed of the fan is adjusted according to the first opening duty cycle of the air conditioning pressure switch and the preset adjustment amount, so that the rotating speed of the fan and the working condition of the air conditioning compressor gradually reach balance, the energy consumption of the engine is prevented from being increased due to the excessively high rotating speed of the fan, and the situation that the fault rate is increased due to the long working time of the air conditioning compressor is avoided.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and specifically to a vehicle air conditioning system control method, device, electronic equipment, and storage medium. Background Technology

[0002] When a driver turns on the air conditioning, the engine fan will rotate at the set minimum speed. If the fan speed is too high, it will increase engine energy consumption and over-cool the air conditioning condenser; if the fan speed is too low, it will not cool the air conditioning condenser sufficiently, causing the air conditioning compressor to work for too long, which in turn will increase the failure rate of the air conditioning compressor. Summary of the Invention

[0003] To address at least one of the technical problems mentioned in the background section, this invention provides a vehicle air conditioning system control method, apparatus, vehicle, electronic device, and storage medium.

[0004] According to one aspect of the embodiments of this application, a vehicle air conditioning system control method is provided. The air conditioning system includes a fan, an air conditioning switch, and an air conditioning pressure switch. The control method includes: acquiring a trigger signal of the air conditioning switch; upon receiving the trigger signal, controlling the fan to operate at a first speed for a preset duration; acquiring a first on-duty cycle of the air conditioning pressure switch within the preset duration; and adjusting the speed of the fan based on the first on-duty cycle and a preset adjustment amount.

[0005] Optionally, adjusting the fan speed based on the first duty cycle and the preset adjustment amount includes: controlling the fan speed to remain unchanged when the first duty cycle is included in the first interval; and adjusting the current fan speed based on the preset adjustment amount when the first duty cycle is not included in the first interval.

[0006] Optionally, adjusting the current speed of the fan based on the preset adjustment amount when the first duty cycle is not included in the first interval includes: when the first duty cycle is included in the second interval, controlling the first speed to decrease by the preset adjustment amount; when the first duty cycle is included in the third interval, controlling the first speed to increase by the preset adjustment amount, wherein the maximum value of the second interval is less than the minimum value of the first interval, and the maximum value of the first interval is less than the minimum value of the third interval.

[0007] Optionally, after adjusting the fan speed based on the preset adjustment amount and the first on-duty cycle, the process includes: obtaining the second on-duty cycle of the air conditioner pressure switch within the next adjacent preset time period; and adjusting the actual fan speed based on the second on-duty cycle and the preset adjustment amount.

[0008] Optionally, the first interval is greater than 10% and less than or equal to 15%.

[0009] Optionally, the first rotational speed is 450-550 rpm.

[0010] Optionally, the preset duration is 4-6 minutes.

[0011] According to another aspect of the embodiments of this application, a vehicle air conditioning system control device is also provided. The air conditioning system includes a fan, an air conditioning switch, and an air conditioning pressure switch. The control device includes: a first acquisition module for acquiring a trigger signal of the air conditioning switch; a first execution module for controlling the fan to operate at a first speed for a preset duration when the trigger signal is received; a second acquisition module for acquiring a first on-duty cycle of the air conditioning pressure switch within the preset duration; and a second execution module for adjusting the speed of the fan based on the first on-duty cycle and a preset adjustment amount.

[0012] According to another aspect of the embodiments of this application, an electronic device is also provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein the memory is used to store a computer program; and the processor is used to execute the method steps of any of the above embodiments by running the computer program stored in the memory.

[0013] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, wherein a computer program is stored therein, wherein the computer program is configured to execute the method steps of any of the above embodiments when running.

[0014] In this embodiment, after receiving the trigger signal from the air conditioner switch, the fan is controlled to operate at a set first speed for a preset duration. During fan operation, the on / off state of the air conditioner pressure switch is monitored in real time to obtain the first duty cycle during which the air conditioner pressure switch is in the open state within the preset duration, i.e., the ratio of the air conditioner compressor's operating time to the preset duration. This allows analysis to determine whether the air conditioner compressor's operating time is too long or too short, and the first speed is adjusted in conjunction with a preset adjustment amount. This gradually balances the fan speed with the air conditioner compressor's operating conditions, preventing the air conditioner compressor's operating time from being too short, which would lead to a high fan speed and increased engine energy consumption. Conversely, it prevents the fan speed from being too low, which would lead to an excessively long air conditioner compressor operating time and increased air conditioner compressor failure rate. By analyzing the first duty cycle of the air conditioner pressure switch, the fan speed is adjusted, gradually stabilizing the operating conditions of the fan and air conditioner compressor. This reduces engine energy consumption and air conditioner compressor failure rate while ensuring the air conditioner's cooling capacity. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic flowchart of an optional vehicle air conditioning system control method according to an embodiment of this application;

[0018] Figure 2 This is another schematic flowchart of an optional vehicle air conditioning system control method according to an embodiment of this application;

[0019] Figure 3 This is a structural block diagram of an optional vehicle air conditioning system control device according to an embodiment of this application;

[0020] Figure 4 This is a structural block diagram of an optional electronic device according to an embodiment of this application. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. 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 comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] As described in the background section, during vehicle operation, when the driver turns on the air conditioning, the engine fan will rotate at the set minimum speed. When the fan speed is too high, it increases engine energy consumption and overcools the air conditioning condenser; when the fan speed is too low, it fails to cool the air conditioning condenser adequately, causing the air conditioning compressor to operate for too long, which in turn increases the failure rate of the air conditioning compressor.

[0024] Therefore, according to one aspect of the embodiments of this application, a vehicle air conditioning system control method is provided, see below. Figure 1 As shown, the process of this method may include the following steps:

[0025] S10. Obtain the trigger signal of the air conditioner switch.

[0026] S20. Upon receiving the trigger signal, control the fan to operate at a first speed for a preset duration.

[0027] S30. Obtain the first opening duty cycle of the air conditioner pressure switch within the preset time period.

[0028] S40. Adjust the fan speed based on the first duty cycle and the preset adjustment amount.

[0029] In this embodiment, after receiving the trigger signal from the air conditioner switch, the fan is controlled to operate at a set first speed for a preset duration. During fan operation, the on / off state of the air conditioner pressure switch is monitored in real time to obtain the first duty cycle of the air conditioner pressure switch being in the open state within the preset duration, i.e., the ratio of the air conditioner compressor's operating time to the preset duration. This allows analysis to determine whether the air conditioner compressor's operating time is too long or too short, and the first speed is adjusted in conjunction with a preset adjustment amount to gradually balance the fan speed and the air conditioner compressor's operating conditions. This avoids the air conditioner compressor's operating time being too short, leading to a high fan speed and increased engine energy consumption, while also avoiding the fan speed being too low, resulting in an excessively long air conditioner compressor operating time and increased air conditioner compressor failure rate. By analyzing the first duty cycle of the air conditioner pressure switch, the fan speed is adjusted to gradually stabilize the operating conditions of the fan and air conditioner compressor, reducing engine energy consumption and air conditioner compressor failure rate while ensuring the air conditioner's cooling capacity.

[0030] It should be noted that the first speed and preset duration can be set differently depending on the vehicle model or air conditioning system. The first speed and preset duration can be obtained through experimentation. For example, the first speed can be 450-550 rpm and the preset duration can be 4-6 minutes.

[0031] As an exemplary embodiment, adjusting the fan speed based on the first duty cycle and a preset adjustment amount includes: when the first duty cycle is within a first range, controlling the fan speed to remain unchanged; when the first duty cycle is not within the first range, adjusting the current fan speed based on the preset adjustment amount. The first range is greater than 10% and less than or equal to 15%.

[0032] In this embodiment, the first duty cycle represents the ratio of the time the air conditioning pressure switch is in the open state within a preset time period to the preset time period, that is, the ratio of the time the air conditioning compressor is in the working state within a preset time period to the preset time period. This reflects the operating condition of the air conditioning compressor and allows analysis to determine whether the working time of the air conditioning compressor is too long or too short when the fan speed is at the first speed. When the first duty cycle is included in the first interval, it indicates that the working time of the air conditioning compressor has a relatively small impact on the compressor itself, resulting in a low failure rate. Simultaneously, the fan speed is relatively stable at this time, without excessively consuming engine energy; therefore, no adjustment is made to the fan speed. The range of 10%-15% in the first interval can be adjusted in other ways, such as 11%-14%, 9%-15%, etc., and is not intended to limit the embodiments of this application.

[0033] When the first duty cycle is not included in the first interval, it indicates that the air conditioning compressor's operating time is too long or too short. An excessively long operating time increases the compressor's failure rate and affects its reliability, while an excessively short operating time leads to excessive fan speed, excessively consuming engine energy and wasting energy. Therefore, when the first duty cycle is not included in the first interval, the current fan speed is adjusted based on a preset adjustment amount—that is, the first speed is increased or decreased—to balance the fan speed and the air conditioning compressor's operating time, thereby improving the compressor's operational reliability and reducing fan energy consumption.

[0034] As an exemplary embodiment, adjusting the current speed of the fan based on the preset adjustment amount when the first duty cycle is not included in the first interval includes: when the first duty cycle is included in the second interval, controlling the first speed to decrease by the preset adjustment amount; when the first duty cycle is included in the third interval, controlling the first speed to increase by the preset adjustment amount, wherein the maximum value of the second interval is less than the minimum value of the first interval, and the maximum value of the first interval is less than the minimum value of the third interval.

[0035] In this embodiment, when the first duty cycle is included in the second interval, it indicates that the fan speed is too high, resulting in a short working time for the air conditioning compressor and excessive energy consumption of the engine by the fan. Therefore, at this time, the fan speed can be reduced by a preset adjustment amount based on the first speed. By reducing the fan speed, the working time of the air conditioning compressor can be increased, thus avoiding excessive energy consumption of the engine by the fan. When the first duty cycle is included in the third interval, it indicates that the working time of the air conditioning compressor is too long, resulting in a high failure rate of the air conditioning compressor. At this time, the fan speed can be increased by a preset adjustment amount based on the first speed, thereby reducing the working time of the air conditioning compressor, lowering the failure rate of the air conditioning compressor, and improving the reliability of operation.

[0036] It should be noted that the preset adjustment amount can be 50 rpm, 30 rpm, 40 rpm, etc., the range of the second interval can be 0-10%, and the range of the third interval can be 15%-100%. It is sufficient to ensure that the sum of the ranges of the first, second, and third intervals is 0-100%. At the same time, the endpoint values ​​of each interval can be set differently according to the usage needs, which is not a limitation of the embodiments of this application.

[0037] As an exemplary embodiment, after adjusting the fan speed based on the preset adjustment amount and the first on-duty cycle, the method includes: obtaining the second on-duty cycle of the air conditioner pressure switch within the next adjacent preset time period; and adjusting the actual fan speed based on the second on-duty cycle and the preset adjustment amount.

[0038] In this embodiment, after adjusting the fan speed once, the system enters the next adjacent preset time period for detection, obtains the second on duty cycle within the second preset time period, and repeats the fan speed adjustment process of the above embodiment. By gradually adjusting the fan speed, the fan speed and the air conditioning compressor reach a gradually stable operating condition. While ensuring the cooling capacity of the fan, the system avoids excessive fan speed leading to increased engine energy consumption, and also avoids excessive working time of the air conditioning compressor leading to increased failure rate. This achieves energy saving and improves the reliability of the air conditioning system.

[0039] See Figure 2 The control method of this application is fully described as follows:

[0040] After starting work, the system acquires the trigger signal from the air conditioner switch. Upon receiving the trigger signal, it first controls the fan to operate at a first speed for a preset duration. During this preset duration, the operating condition of the air conditioner pressure switch is monitored in real time. After the preset duration ends, the first duty cycle of the air conditioner pressure switch is obtained. When the first duty cycle is within the first range, it indicates that the fan speed and the operating condition of the air conditioner compressor are in a relatively stable state, the air conditioner compressor failure rate is low, and the fan consumes less additional energy from the engine while achieving good cooling. At this time, the fan speed is not controlled, and the fan can continue to operate at the current first speed for a preset duration before the duty cycle of the air conditioner pressure switch is monitored and analyzed again.

[0041] When the first duty cycle is included in the second interval, it indicates that the fan speed is relatively high and the engine energy consumption is relatively high, resulting in energy waste. At this time, the first speed of the fan is reduced by the preset adjustment amount, the fan speed is reduced, the working time of the air conditioning compressor within the preset time is increased, and the energy consumption of the fan on the engine is reduced.

[0042] When the first duty cycle is included in the third interval, it indicates that the air conditioner compressor has been working for a longer period of time within the preset time, resulting in a higher failure rate. At this time, the first speed of the control fan is increased by the preset adjustment amount to increase the fan speed, reduce the working time of the air conditioner compressor within the preset time, reduce the failure rate of the air conditioner compressor, and improve operational reliability.

[0043] After adjusting the fan speed once, it is determined whether the air conditioner switch is in the off state. If the air conditioner switch is off, the control process ends. If the air conditioner switch is still in the on state, the fan speed is maintained at the current adjusted speed for a preset time, and the second duty cycle is obtained. The fan speed is then adjusted again based on the second duty cycle.

[0044] According to another aspect of the embodiments of this application, a vehicle air conditioning system control device is provided. The air conditioning system includes a fan, an air conditioning switch, and an air conditioning pressure switch. See [link to relevant documentation]. Figure 3 As shown, the control device includes:

[0045] The first acquisition module 301 is used to acquire the trigger signal of the air conditioner switch;

[0046] When the first execution module 302 receives the trigger signal, it controls the fan to operate at a first speed for a preset time.

[0047] The second acquisition module 303 is used to acquire the first opening duty cycle of the air conditioner pressure switch within the preset time period;

[0048] The second execution module 304 adjusts the fan speed based on the first duty cycle and the preset adjustment amount.

[0049] It should be noted that the first acquisition module 301 in this embodiment can be used to execute the above step S10, the first execution module 302 in this embodiment can be used to execute the above step S20, the second acquisition module 303 in this embodiment can be used to execute the above step S30, and the second execution module 304 in this embodiment can be used to execute the above step S40.

[0050] According to another aspect of the embodiments of this application, an electronic device is provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus, the memory is used to store a computer program, and the processor is used to execute the vehicle air conditioning system control method described in any of the above embodiments by running the computer program stored in the memory.

[0051] Figure 4 This is a structural block diagram of an optional electronic device according to an embodiment of this application, such as... Figure 4 As shown, it includes a processor 402, a communication interface 404, a memory 406, and a communication bus 408. The processor 402, communication interface 404, and memory 406 communicate with each other via the communication bus 408.

[0052] Memory 406 is used to store computer programs;

[0053] When processor 402 executes a computer program stored in memory 406, it performs the following steps:

[0054] Obtain the trigger signal of the air conditioner switch;

[0055] Upon receiving the trigger signal, the fan is controlled to operate at a first speed for a preset duration;

[0056] Obtain the first opening duty cycle of the air conditioner pressure switch within the preset time period;

[0057] The fan speed is adjusted based on the first duty cycle and the preset adjustment amount.

[0058] Optionally, in this embodiment, the communication bus can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0059] The communication interface is used for communication between the aforementioned electronic devices and other devices.

[0060] The memory may include RAM, or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0061] According to another aspect of the embodiments of this application, a computer-readable storage medium is provided, the storage medium storing a computer program, wherein the computer program is configured to execute the vehicle air conditioning system control method described in any of the above embodiments when it is run.

[0062] Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:

[0063] Obtain the trigger signal of the air conditioner switch;

[0064] Upon receiving the trigger signal, the fan is controlled to operate at a first speed for a preset duration;

[0065] Obtain the first opening duty cycle of the air conditioner pressure switch within the preset time period;

[0066] The fan speed is adjusted based on the first duty cycle and the preset adjustment amount.

[0067] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated in this embodiment.

[0068] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, ROMs, RAMs, portable hard drives, magnetic disks, or optical disks.

[0069] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0070] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0071] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for controlling a vehicle air conditioning system, characterized in that, The air conditioning system includes a fan, an air conditioning switch, and an air conditioning pressure switch, and the control method includes: Obtain the trigger signal of the air conditioner switch; Upon receiving the trigger signal, the fan is controlled to operate at a first speed for a preset duration; the preset duration is 4-6 minutes. Obtain the first opening duty cycle of the air conditioner pressure switch within the preset time period; The fan speed is adjusted based on the first duty cycle and the preset adjustment amount; When the first duty cycle is within the first range, the fan speed is kept constant. When the first duty cycle is not included in the first interval, adjusting the current speed of the fan based on the preset adjustment amount includes: When the first duty cycle is included in the second range, the first rotation speed is controlled to decrease by a preset adjustment amount; When the first duty cycle is included in the third interval, the first rotation speed is controlled to increase by a preset adjustment amount, the maximum value of the second interval is less than the minimum value of the first interval, and the maximum value of the first interval is less than the minimum value of the third interval.

2. The vehicle air conditioning system control method as described in claim 1, characterized in that, After adjusting the fan speed based on the preset adjustment amount and the first on duty cycle, the following steps are included: Obtain the second opening duty cycle of the air conditioner pressure switch within the next adjacent preset time period; The actual speed of the fan is adjusted based on the second duty cycle and the preset adjustment amount.

3. The vehicle air conditioning system control method as described in claim 1, characterized in that, The first interval is greater than 10% and less than or equal to 15%.

4. The vehicle air conditioning system control method as described in claim 1, characterized in that, The first rotational speed is 450-550 rpm.

5. A control device for a vehicle air conditioning system based on the vehicle air conditioning system control method according to claim 1, characterized in that, The air conditioning system includes a fan, an air conditioning switch, and an air conditioning pressure switch. The control device includes: The first acquisition module is used to acquire the trigger signal of the air conditioner switch; Upon receiving the trigger signal, the first execution module controls the fan to operate at a first speed for a preset duration. The second acquisition module is used to acquire the first opening duty cycle of the air conditioner pressure switch within the preset time period; The second execution module adjusts the fan speed based on the first duty cycle and the preset adjustment amount.

6. An electronic device comprising a processor, a communication interface, a memory, and a communication bus, wherein, The processor, the communication interface, and the memory communicate with each other via the communication bus, characterized in that... The memory is used to store computer programs; The processor is configured to execute the vehicle air conditioning system control method according to any one of claims 1-4 by running the computer program stored in the memory.

7. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, wherein the computer program is configured to execute the vehicle air conditioning system control method according to any one of claims 1-4 when it is run.

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