Active pressure release valve control method and system for air conditioner joint control and pressure release valve

Abstract

The invention discloses an active pressure release valve control method for air conditioner joint control, and relates to the technical field of vehicle engineering. If it is obtained that the vehicle is in the normal running mode, the vehicle door opening and closing state, the vehicle window opening and closing state, the air conditioner running state and in-vehicle environment information are detected; under the working conditions that a vehicle door is closed, a vehicle window is closed and an air conditioner is started, when the in-vehicle environment information parameter reaches a preset threshold value, the pressure release valve is controlled to be closed; when the in-vehicle environment parameters do not reach the preset threshold value, the pressure release valve is controlled to be opened or intermittently opened; if it is obtained that the vehicle is in the uphill and downhill mode, in-vehicle environment information is detected; when the in-vehicle environment information parameter reaches a preset threshold value, the pressure release valve is controlled to be in a closed state, when the in-vehicle environment information parameter exceeds the preset threshold value, the pressure release valve is controlled to release pressure in a small-opening, multi-frequency and staged mode, and when the in-vehicle environment information is abnormal, the opening degree of the pressure release valve is controlled, air conditioner external circulation is started, and air pressure inside and outside the vehicle is balanced.

Description

Technical Field

[0001] The present application belongs to the field of vehicle engineering technology, and specifically relates to an active pressure relief valve control method, system and pressure relief valve for air-conditioning joint control. Background Art

[0002] The pressure relief valve (also called pressure release valve or safety valve) plays a vital role in the automobile engine. Its main functions include protecting the engine and maintaining the system pressure stable. When the internal pressure of the engine exceeds the preset value, the pressure relief valve will automatically open to release the excess pressure and prevent the engine from being damaged due to excessive pressure. The pressure relief valve ensures that the engine's fuel supply system and ignition system work within a certain pressure range, thereby ensuring the normal operation of the engine.

[0003] In the prior art, the pressure relief valve in the cabin of a car is a passively opened structure, which is designed with a certain angle and is kept in a normally closed state. It will only be passively opened when the indoor air pressure increases instantaneously and the air curtain is under force. However, if the vehicle is in a harsh environment such as uphill and downhill, high altitude areas, rapid uphill, high temperature, high humidity and dryness for a long time, the pressure relief valve will be affected by material aging, temperature and humidity, manufacturing process, etc., and the passive opening will appear insensitive or even ineffective, thereby affecting the airflow pressure relief performance. There are also a small number of car models that do not have a separate pressure relief valve. The reason is that the overall air tightness of the car body is poor. The installation of an independent pressure relief valve increases the cost and does not play the role it should. What's worse, some car models will integrate the pressure relief valve into the waterproof film of the car door and the car door, which can only be used for door switches and cannot achieve air circulation. Because the sealing of the vehicle itself is very poor, there is no need for a pressure relief valve, let alone air circulation. However, vehicles with high quality and high sealing requirements need to be equipped with pressure relief valves. Traditional passive pressure relief valves cannot be used in special application scenarios, resulting in the pressure relief valves being unable to achieve sufficient air circulation inside and outside the vehicle, ensuring the balance of air pressure inside and outside the vehicle, and protecting the safety of people and vehicles. Summary of the invention

[0004] The present application provides an active pressure relief valve control method, system and pressure relief valve for air conditioning linkage control to solve the above-mentioned technical problem that when a vehicle is in a harsh environment such as uphill and downhill, high altitude areas, rapid uphill, high temperature, high humidity and dryness for a long time, the pressure relief valve will be affected by material aging, temperature and humidity, manufacturing process, etc., and passive opening will become insensitive or even fail, thereby affecting the airflow pressure relief performance, and failing to achieve sufficient air circulation inside and outside the vehicle, ensuring the balance of air pressure inside and outside the vehicle, and protecting the safety of people and vehicle driving.

[0005] The technical solution adopted in this application is:

[0006] An active pressure relief valve control method for air conditioning joint control specifically includes:

[0007] Acquire a working mode of the vehicle, wherein the working mode includes a normal driving mode and an uphill and downhill mode;

[0008] If the vehicle is in normal driving mode, the door opening and closing status, window opening and closing status, air conditioning operation status and vehicle interior environment information are detected;

[0009] When the vehicle door is closed, the window is closed and the air conditioner is turned on: when the vehicle interior environment information parameter reaches the preset threshold, the pressure relief valve is controlled to be closed; when the vehicle interior environment parameter does not reach the preset threshold, the pressure relief valve is controlled to be opened or intermittently opened;

[0010] If it is obtained that the vehicle is in uphill or downhill mode, the vehicle interior environment information is detected;

[0011] When the parameters of the in-vehicle environmental information reach the preset threshold, the pressure relief valve is controlled to be in a closed state. When the parameters of the in-vehicle environmental information exceed the preset threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages. When the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled and the air conditioning external circulation is turned on to balance the air pressure inside and outside the vehicle.

[0012] The active pressure relief valve control method of the air conditioning joint control of the present application also has the following additional technical features:

[0013] The specific method for obtaining whether the vehicle is in uphill or downhill mode includes: detecting the working information of the engine or motor, the vehicle's driving posture information, height information and the air pressure parameters inside and outside the vehicle, comparing them with the working condition parameters of a normally driving vehicle, and judging whether the vehicle is in uphill or downhill mode by accuracy.

[0014] The operating information of the engine or the motor includes high torque, high power, low power and low torque of the engine, and high torque, high power, low power and low torque of the motor.

[0015] The working mode also includes a high altitude area mode;

[0016] If the vehicle is detected to be in high altitude area mode, the vehicle interior environment information is detected. When the parameters of the vehicle interior environment information do not reach the set threshold, the pressure relief valve is closed and the air conditioning is circulated outside;

[0017] When the in-vehicle environment information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to be closed;

[0018] When the in-vehicle environmental information parameter is higher than the set threshold, the pressure relief valve is controlled to open with a small opening, multiple frequencies and in stages to relieve pressure;

[0019] When abnormalities are detected in the vehicle's environmental information, the pressure relief valve is controlled to open intermittently and the air conditioner is turned on to external circulation to balance the air pressure inside and outside the vehicle.

[0020] The working mode also includes a high temperature and high humidity mode;

[0021] If it is obtained that the vehicle is in high temperature and high humidity mode, the in-vehicle environment information is detected;

[0022] When the in-vehicle environmental information parameters are lower than the set threshold, the pressure relief valve is controlled to close and the air conditioner starts external circulation;

[0023] When the in-vehicle environmental information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to close;

[0024] When the parameters of the in-vehicle environmental information exceed the set threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages to balance the air pressure inside and outside the vehicle.

[0025] The in-car environment information includes in-car air pressure, in-car temperature, in-car humidity, in-car air quality, in-car oxygen concentration and in-car carbon dioxide concentration.

[0026] The working modes also include a vehicle locking mode and a vehicle door opening and closing mode;

[0027] If it is obtained that the vehicle is in the locking mode, the pressure relief valve is controlled to close;

[0028] If it is obtained that the vehicle is in the door opening and closing mode, the door opening and closing status and the window opening and closing status are detected;

[0029] When the door opening and closing switching or the window opening and closing switching is detected, the pressure relief valve is opened instantly so that the pressure relief valve is opened to the maximum state.

[0030] The present application also relates to an active pressure relief valve control system for air conditioning joint control, based on the active pressure relief valve control method for air conditioning joint control described above, comprising:

[0031] A computing center processing module is used to obtain the mode of the vehicle;

[0032] An air conditioning system module, connected to the computing center processing module, for controlling the working mode of the pressure relief valve and the air conditioning;

[0033] The sensor module is connected to the computing center processing module and is used to detect the door opening and closing status, window opening and closing status, air conditioning operation status, in-vehicle environment information, engine or motor working information, vehicle driving posture, altitude, outside air pressure and inside air pressure.

[0034] The present application also relates to a pressure relief valve, based on the above-mentioned active pressure relief valve control method for air-conditioning linkage control, comprising a shell, a valve body and an opening actuator; the valve body is arranged in the shell, the valve body comprises a connected rotating shaft and blades, the rotating shaft is rotatably connected to the shell; the opening actuator is connected to the shell, and the opening actuator can be connected to the blade for adjusting the opening of the blade.

[0035] The opening actuator includes a gear assembly and a driving member; the gear assembly includes a first gear and a second gear that are meshed with each other, the first gear is fixedly connected to the rotating shaft, and the second gear is fixedly connected to the output shaft of the driving member, and the driving member drives the second gear to rotate a preset angle relative to the first gear to adjust the opening of the blade.

[0036] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0037] 1. The present application discloses an active pressure relief valve control method for air conditioning joint control, which obtains the working mode of the vehicle, whether it is a normal driving mode or an uphill or downhill mode; when in the normal driving mode, detects the door opening and closing state, the window opening and closing state, the air conditioning operation state and the vehicle interior environment information; when the vehicle door is closed, the window is closed and the air conditioning is turned on, when the vehicle interior environment information parameter reaches a preset threshold, the pressure relief valve is controlled to be closed; when the vehicle interior environment parameter does not reach the preset threshold, the pressure relief valve is controlled to be opened or intermittently opened; the present application can realize the active opening of the pressure relief valve, actively open the pressure relief valve according to the vehicle interior environment, and intermittently open the pressure relief valve appropriately according to the comparison between the vehicle interior environment parameter and the preset threshold, and control the exhaust volume to balance the air pressure inside and outside the vehicle;

[0038] In addition, if it is obtained that the vehicle is in uphill or downhill mode, the in-vehicle environmental information is detected; when the in-vehicle environmental information parameters reach the preset threshold, the pressure relief valve is controlled to be in a closed state. When the in-vehicle environmental information parameters exceed the preset threshold, the air pressure inside the car is greater than the air pressure outside the car, then the pressure relief valve is controlled to have a small opening, multiple frequencies, and pressure relief in stages, so as to avoid tinnitus and other discomforts for people in the car, and the pressure relief valve can be opened gradually and actively to achieve airflow discharge; when the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled and the air conditioning external circulation is turned on. When the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled to ensure the amount of air discharged, so as to avoid high pressure in the car. The air intake in the car is guaranteed by turning on the air conditioner, so as to balance the air pressure inside and outside the car. The present application ensures the balance of air flow inside and outside the vehicle through joint control with the air conditioner. The pressure relief valve can be opened actively, opened passively, closed actively, opened with a delay, etc., to solve the defect that the existing traditional pressure relief valve is easy to fail when the air pressure drops rapidly due to long-term uphill and downhill driving, mountainous plateau environment, rapid uphill and downhill driving, etc., and cannot effectively and real-time ensure the balance of air flow inside and outside the vehicle.

[0039] 2. As a preferred embodiment of the present application, the specific method for obtaining whether the vehicle is in uphill or downhill mode includes: detecting the working information of the engine or motor, the vehicle's driving posture information, height information and the air pressure parameters inside and outside the vehicle, comparing them with the operating parameters of a normally driving vehicle, and judging whether the vehicle is in uphill or downhill mode by accuracy.

[0040] By detecting the working information of the engine or motor, the vehicle's driving posture information and height information, as well as the air pressure parameters inside and outside the vehicle, and comparing them with the operating parameters of a normally running vehicle, the operating parameters of a normally running vehicle are used as a benchmark to determine whether the vehicle is in an uphill or downhill mode, thereby accurately determining whether the vehicle is in a rapid uphill or downhill state.

[0041] 3. As a preferred embodiment of the present application, the working information of the engine or the motor includes the high torque, high power, low power and low torque of the engine, and the high torque, high power, low power and low torque of the motor.

[0042] When going uphill rapidly, the engine or motor is characterized by high torque and high power, and when going downhill rapidly, the engine or motor is characterized by low torque and low power. Therefore, by detecting the working state of the engine or motor as a way to determine whether the vehicle is in a rapid uphill or downhill mode, the opening and closing state of the pressure relief valve and the regulation state of the air conditioner can be further controlled to effectively ensure the balance of air circulation inside and outside the vehicle in real time.

[0043] 4. As a preferred embodiment of the present application, the working mode also includes a high-altitude area mode; if it is obtained that the vehicle is in the high-altitude area mode, the in-vehicle environmental information is detected, and when the in-vehicle environmental information parameters do not reach the set threshold, the pressure relief valve is closed and the air conditioner is circulated externally; when the in-vehicle environmental information parameters reach the set threshold, the current pressure of the air conditioner is maintained, and the pressure relief valve is controlled to be closed; when the in-vehicle environmental information parameters are higher than the set threshold, the pressure relief valve is controlled to open with a small opening, multiple frequencies and in stages to relieve pressure; when the in-vehicle environmental information is detected to be abnormal, the pressure relief valve is controlled to open intermittently, and the air conditioner is turned on to external circulation to balance the air pressure inside and outside the vehicle.

[0044] The present application also actively regulates the pressure relief valve when the vehicle is in the high-altitude area mode. When it is detected that the parameters of the in-vehicle environmental information do not reach the set threshold, the pressure relief valve closes the air conditioner and starts the external circulation. As the altitude increases or decreases, the air flow inside and outside the vehicle is balanced by controlling the air intake volume of the air conditioner in real time. When the in-vehicle environmental parameter information reaches the set threshold, the current pressure of the air conditioner is maintained, and the pressure relief valve is closed. The air flow of the air conditioner is adaptively adjusted according to the altitude. When the in-vehicle environmental parameter information is higher than the set threshold, it is necessary to control the pressure relief valve to a small opening, multiple frequencies, and to open the pressure relief valve in stages for pressure relief to avoid sudden large-scale pressure relief causing discomfort to the human body. Ultimately, the pressure in the vehicle is gradually released, so that the air pressure inside and outside the vehicle is balanced.

[0045] 5. As a preferred embodiment of the present application, the working mode also includes a high temperature and high humidity mode; if it is obtained that the vehicle is in the high temperature and high humidity mode, the in-vehicle environmental information is detected; when the in-vehicle environmental information parameter is lower than the set threshold, the pressure relief valve is controlled to close and the air conditioner is turned on for external circulation; when the in-vehicle environmental information parameter reaches the set threshold, the current pressure of the air conditioner is maintained and the pressure relief valve is controlled to close; when the in-vehicle environmental information parameter exceeds the set threshold, the pressure relief valve is controlled to open slightly, and the pressure is released at multiple frequencies and in stages to balance the air pressure inside and outside the vehicle.

[0046] The control system can also detect whether the vehicle is in a high temperature and high humidity mode. When the vehicle is in a high temperature and high humidity mode, the in-vehicle environmental information is detected and compared with a set threshold. When the in-vehicle environmental information parameter is lower than the set threshold, the pressure relief valve needs to be controlled to close, the air conditioner is turned on, and the air conditioning intake flow is adjusted according to the set threshold parameters to meet the balance of air flow inside and outside the vehicle; when the in-vehicle environmental information parameter reaches the set threshold, the current air intake volume of the air conditioner is maintained, and the pressure relief valve is still in the closed stage. When the in-vehicle environmental information parameter exceeds the set threshold, in order to prevent human discomfort, the pressure relief valve is controlled to release pressure with a small opening, multiple frequencies and in stages to balance the pressure inside the vehicle with the pressure outside the vehicle, that is, to achieve a balance of air flow inside and outside the vehicle, so that the vehicle can adapt to the high temperature and high humidity environment. By detecting the mode of the vehicle, the air conditioner is adjusted for coordinated control. When the pressure inside the vehicle is too high, the pressure relief valve is opened in time to release pressure, thereby avoiding the pressure relief valve from failing and being unable to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0048] Figure 1 A schematic flow chart of an active pressure relief valve control method for air conditioning joint control according to an implementation mode of the present application;

[0049] Figure 2 This is a schematic structural diagram of a pressure relief valve at a first angle in one implementation of the present application;

[0050] Figure 3 A schematic structural diagram of a pressure relief valve at a second angle according to an implementation of the present application;

[0051] In the figure,

[0052] 1. Outer shell; 2. Rotating shaft; 3. Blades; 4. Connectors; 5. Opening actuator; 6. Waterproof cover; 7. Protective cover; 8. Sealing gasket. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0055] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] The present application relates to an active pressure relief valve control method for air conditioning joint control, such as Figure 1 As shown, specifically including:

[0059] Acquire a working mode of the vehicle, wherein the working mode includes a normal driving mode and an uphill and downhill mode;

[0060] If the vehicle is in normal driving mode, the door opening and closing status, window opening and closing status, air conditioning operation status and vehicle interior environment information are detected;

[0061] When the vehicle door is closed, the window is closed and the air conditioner is turned on: when the vehicle interior environment information parameter reaches the preset threshold, the pressure relief valve is controlled to be closed; when the vehicle interior environment parameter does not reach the preset threshold, the pressure relief valve is controlled to be opened or intermittently opened;

[0062] If it is obtained that the vehicle is in uphill or downhill mode, the vehicle interior environment information is detected;

[0063] When the parameters of the in-vehicle environmental information reach the preset threshold, the pressure relief valve is controlled to be in a closed state. When the parameters of the in-vehicle environmental information exceed the preset threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages. When the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled and the air conditioning external circulation is turned on to balance the air pressure inside and outside the vehicle.

[0064] The present application discloses an active pressure relief valve control method for air conditioning joint control, which obtains the working mode of the vehicle, whether it is a normal driving mode or an uphill or downhill mode; when in the normal driving mode, detects the door opening and closing state, the window opening and closing state, the air conditioning operation state and the vehicle interior environment information; when the vehicle door is closed, the window is closed and the air conditioning is turned on, when the vehicle interior environment information parameter reaches a preset threshold, the pressure relief valve is controlled to be closed; when the vehicle interior environment parameter does not reach the preset threshold, the pressure relief valve is controlled to be opened or intermittently opened; the present application can realize the active opening of the pressure relief valve, actively open the pressure relief valve according to the vehicle interior environment, and appropriately open the pressure relief valve intermittently according to the comparison between the vehicle interior environment parameter and the preset threshold, and control the exhaust volume to balance the air pressure inside and outside the vehicle;

[0065] In addition, if it is obtained that the vehicle is in uphill or downhill mode, the in-vehicle environmental information is detected; when the in-vehicle environmental information parameters reach the preset threshold, the pressure relief valve is controlled to be in a closed state. When the in-vehicle environmental information parameters exceed the preset threshold, the air pressure inside the car is greater than the air pressure outside the car, then the pressure relief valve is controlled to have a small opening, multiple frequencies, and pressure relief in stages, so as to avoid tinnitus and other discomforts for people in the car, and the pressure relief valve can be opened gradually and actively to achieve airflow discharge; when the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled and the air conditioning external circulation is turned on. When the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled to ensure the amount of air discharged, so as to avoid high pressure in the car. The air intake in the car is guaranteed by turning on the air conditioner, so as to balance the air pressure inside and outside the car. The present application ensures the balance of air flow inside and outside the vehicle through joint control with the air conditioner. The pressure relief valve can be opened actively, opened passively, closed actively, opened with a delay, etc., to solve the defect that the existing traditional pressure relief valve is easy to fail when the air pressure drops rapidly due to long-term uphill and downhill driving, mountainous plateau environment, rapid uphill and downhill driving, etc., and cannot effectively and real-time ensure the balance of air flow inside and outside the vehicle.

[0066] As a preferred implementation, the specific method for obtaining whether the vehicle is in uphill or downhill mode includes: detecting the working information of the engine or motor, the vehicle's driving posture information, altitude information and the air pressure parameters inside and outside the vehicle, comparing them with the operating parameters of a normally driving vehicle, and judging whether the vehicle is in uphill or downhill mode by accuracy.

[0067] By detecting the working information of the engine or motor, the vehicle's driving posture information and height information, as well as the air pressure parameters inside and outside the vehicle, and comparing them with the operating parameters of a normally running vehicle, the operating parameters of a normally running vehicle are used as a benchmark to determine whether the vehicle is in an uphill or downhill mode, thereby accurately determining whether the vehicle is in a rapid uphill or downhill state.

[0068] Furthermore, the operating information of the engine or the motor includes high torque, high power, low power and low torque of the engine, and high torque, high power, low power and low torque of the motor.

[0069] When going uphill rapidly, the engine or motor is characterized by high torque and high power, and when going downhill rapidly, the engine or motor is characterized by low torque and low power. Therefore, by detecting the working state of the engine or motor as a way to determine whether the vehicle is in a rapid uphill or downhill mode, the opening and closing state of the pressure relief valve and the regulation state of the air conditioner can be further controlled to effectively ensure the balance of air circulation inside and outside the vehicle in real time.

[0070] As a preferred implementation, the working mode further includes a high altitude area mode;

[0071] If the vehicle is detected to be in high altitude area mode, the vehicle interior environment information is detected. When the parameters of the vehicle interior environment information do not reach the set threshold, the pressure relief valve is closed and the air conditioning is circulated outside;

[0072] When the in-vehicle environment information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to be closed;

[0073] When the in-vehicle environmental information parameter is higher than the set threshold, the pressure relief valve is controlled to open with a small opening, multiple frequencies and in stages to relieve pressure;

[0074] When abnormalities are detected in the vehicle's environmental information, the pressure relief valve is controlled to open intermittently and the air conditioner is turned on to external circulation to balance the air pressure inside and outside the vehicle.

[0075] The present application also actively regulates the pressure relief valve when the vehicle is in the high-altitude area mode. When it is detected that the parameters of the in-vehicle environmental information do not reach the set threshold, the pressure relief valve closes the air conditioner and starts the external circulation. As the altitude increases or decreases, the air flow inside and outside the vehicle is balanced by controlling the air intake volume of the air conditioner in real time. When the in-vehicle environmental parameter information reaches the set threshold, the current pressure of the air conditioner is maintained, and the pressure relief valve is closed. The air flow of the air conditioner is adaptively adjusted according to the altitude. When the in-vehicle environmental parameter information is higher than the set threshold, it is necessary to control the pressure relief valve to a small opening, multiple frequencies, and to open the pressure relief valve in stages for pressure relief to avoid sudden large-scale pressure relief causing discomfort to the human body. Ultimately, the pressure in the vehicle is gradually released, so that the air pressure inside and outside the vehicle is balanced.

[0076] When the computing center processing module described below detects that the parameters of the in-vehicle environmental information are abnormal, it will give priority to ensuring the in-vehicle air quality according to the severity of the abnormal situation, control the pressure relief valve to open actively, and adjust the opening size of the pressure relief valve or whether to open it intermittently according to the air pressure values ​​inside and outside the vehicle, and upload it to the air-conditioning system module at the same time. The air conditioner is started through the air-conditioning system module to realize the input of air pressure so that the air intake flow of the air conditioner is coordinated with the air discharge flow of the pressure relief valve. Through the coordinated control of the two, the air pressure inside and outside the vehicle can be entered, discharged and balanced, thereby improving the air quality, thereby realizing a slow deceleration and step-by-step release of the air pressure in the vehicle, and improving the vehicle's operating safety and the comfort experience of the people.

[0077] As a preferred implementation, the working mode also includes a high temperature and high humidity mode;

[0078] If it is obtained that the vehicle is in high temperature and high humidity mode, the in-vehicle environment information is detected;

[0079] When the in-vehicle environmental information parameters are lower than the set threshold, the pressure relief valve is controlled to close and the air conditioner starts external circulation;

[0080] When the in-vehicle environmental information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to close;

[0081] When the parameters of the in-vehicle environmental information exceed the set threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages to balance the air pressure inside and outside the vehicle.

[0082] The control system can also detect whether the vehicle is in a high temperature and high humidity mode. When the vehicle is in a high temperature and high humidity mode, the in-vehicle environmental information is detected and compared with a set threshold. When the in-vehicle environmental information parameter is lower than the set threshold, the pressure relief valve needs to be controlled to close, the air conditioner is turned on, and the air conditioning intake flow is adjusted according to the set threshold parameters to meet the balance of air flow inside and outside the vehicle; when the in-vehicle environmental information parameter reaches the set threshold, the current air intake volume of the air conditioner is maintained, and the pressure relief valve is still in the closed stage. When the in-vehicle environmental information parameter exceeds the set threshold, in order to prevent human discomfort, the pressure relief valve is controlled to release pressure with a small opening, multiple frequencies and in stages to balance the pressure inside the vehicle with the pressure outside the vehicle, that is, to achieve a balance of air flow inside and outside the vehicle, so that the vehicle can adapt to the high temperature and high humidity environment. By detecting the mode of the vehicle, the air conditioner is adjusted for coordinated control. When the pressure inside the vehicle is too high, the pressure relief valve is opened in time to release pressure, thereby avoiding the pressure relief valve from failing and being unable to open.

[0083] Furthermore, the in-vehicle environmental information includes in-vehicle air pressure, in-vehicle temperature, in-vehicle humidity, in-vehicle air quality, in-vehicle oxygen concentration, and in-vehicle carbon dioxide concentration.

[0084] By installing a temperature sensor on the side of the car body to detect the temperature inside the car, a humidity sensor to detect the humidity inside the car, an air pressure sensor to detect the air pressure inside the car, and an air flow quality sensor to detect the air quality and oxygen concentration and carbon dioxide concentration inside the car.

[0085] As a preferred implementation, the working mode also includes a vehicle locking mode and a vehicle door opening and closing mode;

[0086] If it is obtained that the vehicle is in the locking mode, the pressure relief valve is controlled to close;

[0087] If it is obtained that the vehicle is in the door opening and closing mode, the door opening and closing status and the window opening and closing status are detected;

[0088] When the door opening and closing switching or the window opening and closing switching is detected, the pressure relief valve is opened instantly so that the pressure relief valve is opened to the maximum state.

[0089] In the vehicle lock mode, the vehicle is not in operation, so just close the pressure relief valve.

[0090] When the vehicle is in door opening and closing mode, that is, the door is in the opening and closing switching state or the window is in the opening and closing switching state, in order to ensure the balance of air flow when opening and closing the inside and outside of the vehicle, and to ensure the rapid pressure relief when the air pressure increases at the moment of opening and closing the door, the pressure relief valve is opened to the maximum state to ensure sufficient circulation of the airflow inside the vehicle and the airflow outside the vehicle.

[0091] In addition, the start and close of the pressure relief valve can also be remotely controlled. It is necessary to establish a vehicle-machine environment interaction system on the vehicle body, and perform automatic learning and memory functions through the computing center processing module. According to the use effect of the car, the corresponding degree is set, and the air-conditioning system module is connected to the computing center processing module to control the pressure relief valve to open or close or intermittently close, so that the airflow inside and outside the car remains flowing and the air pressure inside and outside the car is balanced.

[0092] Example 2

[0093] The present application also relates to an active pressure relief valve control system for air conditioning joint control, based on the active pressure relief valve control method for air conditioning joint control described above, comprising:

[0094] A computing center processing module is used to obtain the mode of the vehicle;

[0095] An air conditioning system module, connected to the computing center processing module, for controlling the working mode of the pressure relief valve and the air conditioning;

[0096] The sensor module is connected to the computing center processing module and is used to detect the door opening and closing status, window opening and closing status, air conditioning operation status, in-vehicle environment information, engine or motor working information, vehicle driving posture, altitude, outside air pressure and inside air pressure.

[0097] The sensor module includes a door switch sensor for detecting the open and closed status of the door, a window switch sensor for detecting the open and closed status of the window, and a current sensor for detecting the operating status of the air conditioner, as well as a temperature sensor for detecting the in-vehicle temperature data in the in-vehicle environment information, a humidity sensor for detecting the in-vehicle humidity data, a pressure sensor for detecting the in-vehicle air pressure data, an outlet flow quality sensor for detecting the in-vehicle air quality data and the oxygen and carbon dioxide concentrations, a vehicle sensor for detecting the working information of the engine or the motor, a vehicle attitude angle sensor for detecting the vehicle's driving attitude angle data, an altitude sensor for detecting the vehicle's altitude, an outside air pressure sensor for detecting the outside air pressure data, and an inside air pressure sensor for detecting the inside air pressure data.

[0098] The computing center processing module analyzes the data detected by the sensor module to determine whether the vehicle is in normal driving, uphill and downhill mode, high altitude area mode, high temperature and high humidity mode, locked mode and door opening and closing mode; then the air conditioning system module controls the operating status of the pressure relief valve or the air conditioner accordingly to achieve pressure balance inside and outside the vehicle, air circulation balance, and improve air quality.

[0099] Example 3

[0100] The present application also relates to a pressure relief valve, such as Figure 2-3 As shown, an active pressure relief valve control method based on the above-mentioned air-conditioning joint control includes a shell 1, a valve body and an opening actuator 5; the valve body is arranged in the shell 1, and the valve body includes a connected shaft 2 and a blade 3, and the shaft 2 is rotatably connected to the shell; the opening actuator 5 is connected to the shell 1, and the opening actuator 5 can be connected to the blade 3 for adjusting the opening of the blade 3.

[0101] like Figure 2 As shown, a waterproof cover 6 is provided on one side of the housing 1, and a filter layer formed by non-woven fabric and low-resistance filter cotton cloth is detachably connected to the inner side of the waterproof cover 6; a protective cover 7 is provided on the other side of the housing 1, and a space for accommodating the valve body is formed between the protective cover 7 and the waterproof cover 6, and a rotating shaft 2 is connected to both sides of the blade 3 of the valve body, and a mounting hole is provided on the protective cover 7. The rotating shaft 2 is rotatably connected to the mounting hole through a bearing assembly, and the rotating shaft 2 is connected to the opening actuator 5 to realize the rotation of the rotating shaft 2, and the edge of the blade 3 can close the inner cavity of the housing 1. When the rotating shaft 2 rotates, it drives the blade 3 to flip in the housing 1 to open and close the inner cavity of the housing 1, thereby realizing the opening and closing of the valve body; a sealing gasket 8 is also connected to the peripheral side of the housing 1, which is used to form a sealed connection when connected to the vehicle body. A plug connector 4 for wiring harness plug connection is also provided on the housing 1, which is convenient for adjusting the opening of the blade 3 by electrically starting the opening actuator 5.

[0102] Furthermore, the opening actuator 5 includes a gear assembly and a driving member; the gear assembly includes a first gear and a second gear that are meshed with each other, the first gear is fixedly connected to the rotating shaft 2, and the second gear is fixedly connected to the output shaft of the driving member, and the second gear is driven by the driving member to rotate a preset angle relative to the first gear to adjust the opening of the blade 3.

[0103] The gear assembly includes a first gear and a second gear, wherein the first gear is a bevel gear, the second gear is a bevel gear, the first gear is connected to the rotating shaft 2, the second gear is connected to the output shaft of the driving member, the driving member can be a motor, when the output shaft of the motor is distributed in the vertical direction, the rotating shaft 2 is distributed in the horizontal direction, the first gear is meshed with the second gear and the axis direction of the first gear is perpendicular to the axis direction of the second gear, so that the rotational motion of the output shaft of the motor in the vertical direction can be converted into the rotational motion in the lateral direction, so as to adjust the opening size of the blade 3 by adjusting the circumferential rotation position of the first gear along the second gear. The places not described in this application can be realized by adopting or drawing on the existing technology.

[0104] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0105] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An active pressure relief valve control method for air conditioning joint control, characterized in that: Specifically include: Acquire a working mode of the vehicle, wherein the working mode includes a normal driving mode and an uphill and downhill mode; If the vehicle is in normal driving mode, the door opening and closing status, window opening and closing status, air conditioning operation status and vehicle interior environment information are detected; When the vehicle door is closed, the window is closed and the air conditioner is turned on: when the vehicle interior environment information parameter reaches the preset threshold, the pressure relief valve is controlled to close; When the in-vehicle environmental parameters do not reach the preset threshold, the pressure relief valve is controlled to open or open intermittently; If it is obtained that the vehicle is in uphill or downhill mode, the vehicle interior environment information is detected; When the parameters of the in-vehicle environmental information reach the preset threshold, the pressure relief valve is controlled to be in a closed state. When the parameters of the in-vehicle environmental information exceed the preset threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages. When the in-vehicle environmental information is abnormal, the opening of the pressure relief valve is controlled and the air conditioning external circulation is turned on to balance the air pressure inside and outside the vehicle.

2. The active pressure relief valve control method for air conditioning joint control according to claim 1, characterized in that: The specific method for obtaining whether the vehicle is in uphill or downhill mode includes: detecting the working information of the engine or motor, the vehicle's driving posture information, height information and the air pressure parameters inside and outside the vehicle, comparing them with the working condition parameters of a normally driving vehicle, and judging whether the vehicle is in uphill or downhill mode by accuracy.

3. The active pressure relief valve control method for air conditioning joint control according to claim 2, characterized in that: The operating information of the engine or the motor includes high torque, high power, low power and low torque of the engine, and high torque, high power, low power and low torque of the motor.

4. The active pressure relief valve control method for air conditioning joint control according to claim 1, characterized in that: The working mode also includes a high altitude area mode; If the vehicle is detected to be in high altitude area mode, the vehicle interior environment information is detected. When the parameters of the vehicle interior environment information do not reach the set threshold, the pressure relief valve is closed and the air conditioning is circulated outside; When the in-vehicle environment information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to be closed; When the in-vehicle environmental information parameter is higher than the set threshold, the pressure relief valve is controlled to open with a small opening, multiple frequencies and in stages to relieve pressure; When abnormalities are detected in the vehicle's environmental information, the pressure relief valve is controlled to open intermittently and the air conditioner is turned on to external circulation to balance the air pressure inside and outside the vehicle.

5. The active pressure relief valve control method for air conditioning joint control according to claim 1, characterized in that: The working mode also includes a high temperature and high humidity mode; If it is obtained that the vehicle is in high temperature and high humidity mode, the in-vehicle environment information is detected; When the in-vehicle environmental information parameters are lower than the set threshold, the pressure relief valve is controlled to close and the air conditioner starts external circulation; When the in-vehicle environmental information parameter reaches the set threshold, the current air conditioning pressure is maintained and the pressure relief valve is controlled to close; When the parameters of the in-vehicle environmental information exceed the set threshold, the pressure relief valve is controlled to open slightly, release pressure at multiple frequencies and in stages to balance the air pressure inside and outside the vehicle.

6. The active pressure relief valve control method for air conditioning joint control as described in claims 4-5, characterized in that: The in-vehicle environmental information parameters include in-vehicle air pressure, in-vehicle temperature, in-vehicle humidity, in-vehicle air quality, in-vehicle oxygen concentration and in-vehicle carbon dioxide concentration.

7. The active pressure relief valve control method for air conditioning joint control according to claim 1, characterized in that: The working modes also include a vehicle locking mode and a vehicle door opening and closing mode; If it is obtained that the vehicle is in the locking mode, the pressure relief valve is controlled to close; If it is obtained that the vehicle is in the door opening and closing mode, the door opening and closing status and the window opening and closing status are detected; When the door opening and closing switching or the window opening and closing switching is detected, the pressure relief valve is opened instantly so that the pressure relief valve is opened to the maximum state.

8. An active pressure relief valve control system for air conditioning joint control, based on an active pressure relief valve control method for air conditioning joint control according to any one of claims 1 to 7, characterized in that: include: A computing center processing module is used to obtain the mode of the vehicle; An air conditioning system module, connected to the computing center processing module, for controlling the working mode of the pressure relief valve and the air conditioning; The sensor module is connected to the computing center processing module and is used to detect the door opening and closing status, window opening and closing status, air conditioning operation status, in-vehicle environment information, engine or motor working information, vehicle driving posture, altitude, outside air pressure and inside air pressure.

9. A pressure relief valve, applied to an active pressure relief valve control method for air conditioning joint control as claimed in any one of claims 1 to 7, characterized in that: It includes a shell, a valve body and an opening actuator; the valve body is arranged in the shell, the valve body includes a rotating shaft and a blade connected to each other, and the rotating shaft is rotatably connected to the shell; the opening actuator is connected to the shell, and the opening actuator can be connected to the blade to adjust the opening of the blade.

10. A pressure relief valve according to claim 9, characterized in that: The opening actuator includes a gear assembly and a driving member; the gear assembly includes a first gear and a second gear that are meshed with each other, the first gear is fixedly connected to the rotating shaft, and the second gear is fixedly connected to the output shaft of the driving member, and the driving member drives the second gear to rotate a preset angle relative to the first gear to adjust the opening of the blade.

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