Method for controlling oxygen concentration in passenger compartment of vehicle and vehicle

Abstract

The invention relates to the technical field of vehicle engineering, and particularly provides an oxygen concentration control method for a driving room of a vehicle and the vehicle. The vehicle comprises an air conditioning system and an oxygen generation module, the air conditioning system comprises an inner circulation mode and an outer circulation mode, a fan can send oxygen generated by the oxygen generation module into a cab, and the oxygen concentration control method comprises the steps that the oxygen concentration inside and outside the cab is obtained; according to the oxygen concentration, the internal circulation mode or the external circulation mode is selectively operated, the oxygen generation module is selectively started, the oxygen concentration inside and outside the driving room is obtained, the difference value between the oxygen concentration inside and outside the driving room is calculated, and the oxygen concentration inside the driving room is compared with a first preset concentration and a second preset concentration; whether oxygen needs to be supplemented in the driving room or not and the oxygen supplementing mode are judged through the oxygen generation module, then oxygen is supplemented through the oxygen generation module or external air supplementing, control over the oxygen concentration in the driving room is more intelligent, and the body health and driving safety of a driver and passengers are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle engineering, and particularly provides an oxygen concentration control method for a driver's room of a vehicle and the vehicle. BACKGROUND

[0002] With the start of the Yakang Hydropower Station, a large number of commercial transport vehicles with on-board roof-mounted air conditioners, muck transport vehicles and other vehicles are in urgent need. Due to the decrease of oxygen partial pressure in the air under the plateau environment, the driver is prone to have a high altitude reaction, and symptoms such as headache, insomnia, fatigue and other symptoms occur, which seriously threatens the health of the driver and driving safety.

[0003] In the on-board roof-mounted air conditioner of the existing vehicle, although an oxygen production module is also configured, the control of the oxygen concentration in the driver's room is not intelligent enough, and the running mode of the on-board roof-mounted air conditioner and the running state of the oxygen production module cannot be adjusted according to the oxygen concentration inside and outside the driver's room, which will lead to problems such as waste of oxygen or insufficient oxygen supply. For example, when the vehicle is in a low altitude area, the oxygen supply amount in the driver's room is small, and the existing vehicle starts the oxygen production module to make the oxygen content in the driver's room too much, causing waste of oxygen. When the vehicle is in a high altitude area, the oxygen content in the driver's room decreases sharply, and the oxygen supply amount in the driver's room is large. The oxygen production amount of the oxygen production module of the existing vehicle is insufficient, and the driver will have symptoms such as headache, dizziness, lack of concentration, rapid breathing, rapid heart rate, mild blood pressure rise and other symptoms, which will cause harm to the health of the driver and cause driving safety accidents.

[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, that is, to solve the problem of waste of oxygen and insufficient oxygen supply caused by the non-intelligent control of the oxygen concentration in the driver's room of the existing vehicle.

[0006] In a first aspect, the present application provides an oxygen concentration control method for a driver's room of a vehicle, the vehicle comprising an air conditioning system and an oxygen production module, the air conditioning system comprising an internal circulation mode and an external circulation mode, a fan of the air conditioning system being capable of sending oxygen produced by the oxygen production module into the driver's room, the oxygen concentration control method comprising: obtaining an oxygen concentration inside the driver's room, denoted as a first concentration V1; obtaining an oxygen concentration outside the driver's room, denoted as a second concentration V2; selectively operating the internal circulation mode or the external circulation mode according to the first concentration V1 and the second concentration V2, and selectively starting the oxygen production module.

[0007] In the preferred technical solution of the oxygen concentration control method, the step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the first concentration V1 and the second concentration V2" specifically comprises: comparing the first concentration V1 with a first preset concentration Vy1 and a second preset concentration Vy2 respectively, wherein Vy1 < Vy2; selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result and the second concentration V2.

[0008] In the preferred technical solution of the oxygen concentration control method, the step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result and the second concentration V2" specifically comprises: if the first concentration V1 is less than the first preset concentration Vy1, calculating a first concentration difference AV1 between the first concentration V1 and the second concentration V2, wherein AV1 = V2-V1; comparing the first concentration difference AV1 with a first preset value AV1y; and selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result.

[0009] In the preferred technical solution of the oxygen concentration control method, the step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result" specifically comprises: if the first concentration difference AV1 is greater than the first preset value AV1y, operating the air conditioning system in the outer circulation mode and not starting the oxygen generation module; and / or if the first concentration difference AV1 is not greater than the first preset value AV1y, operating the air conditioning system in the inner circulation mode and starting the oxygen generation module.

[0010] In the preferred technical solution of the oxygen concentration control method, the step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result" specifically comprises: if the first concentration difference AV1 is greater than the first preset value AV1y, obtaining the air quality outside the passenger compartment; if the air quality outside the passenger compartment meets a preset condition, operating the air conditioning system in the outer circulation mode and not starting the oxygen generation module; if the air quality outside the passenger compartment does not meet the preset condition, operating the air conditioning system in the inner circulation mode and starting the oxygen generation module; and / or if the first concentration difference AV1 is not greater than the first preset value AV1y, operating the air conditioning system in the inner circulation mode and starting the oxygen generation module.

[0011] In the preferred embodiment of the above-mentioned oxygen concentration control method, the step of "selectively operating the internal circulation mode or the external circulation mode according to the comparison result and the second concentration V2, and selectively turning on the oxygen generating module" specifically includes: if the first concentration V1 is not less than the first preset concentration Vy1 and not greater than the second preset concentration Vy2, then according to the second concentration V2 and the target oxygen concentration V0, selectively operating the internal circulation mode or the external circulation mode, and selectively turning on the oxygen generating module, so that the oxygen concentration in the passenger compartment is maintained at the target oxygen concentration V0; and / or the step of "selectively operating the internal circulation mode or the external circulation mode according to the comparison result and the second concentration V2, and selectively turning on the oxygen generating module" specifically includes: if the first concentration V1 is greater than the second preset concentration Vy2, then the air conditioning system operates the internal circulation mode and the oxygen generating module is not turned on.

[0012] In the preferred embodiment of the above-mentioned oxygen concentration control method, the step of "selectively operating the internal circulation mode or the external circulation mode according to the second concentration V2 and the target oxygen concentration V0, and selectively turning on the oxygen generating module to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0" specifically includes: calculating a second concentration difference ΔV2 between the second concentration V2 and the target oxygen concentration V0; wherein, ΔV2 = |V2 - V0|; comparing the second concentration difference ΔV2 with a second preset value ΔV2y; and selectively operating the internal circulation mode or the external circulation mode according to the comparison result, and selectively turning on the oxygen generating module to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0.

[0013] In the preferred embodiment of the above-mentioned oxygen concentration control method, the step of "selectively operating the internal circulation mode or the external circulation mode according to the comparison result, and selectively turning on the oxygen generation module to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0" specifically includes: if the second concentration difference ΔV2 is greater than the second preset value ΔV2y, then the air conditioning system operates the internal circulation mode and the oxygen generation module is turned on; and / or if the second concentration difference ΔV2 is not greater than the second preset value ΔV2y, then the air conditioning system operates the external circulation mode and the oxygen generation module is not turned on.

[0014] In the preferred embodiment of the above-mentioned oxygen concentration control method, the target oxygen concentration V0 is positively correlated with the altitude of the vehicle.

[0015] In a second aspect, the present invention also provides a vehicle, the vehicle of the present invention further comprising a controller configured to perform the oxygen concentration control method described above.

[0016] Those skilled in the art will understand that the vehicle of the present invention obtains the oxygen concentration inside the passenger compartment, i.e., a first concentration V1, and obtains the oxygen concentration outside the passenger compartment, i.e., a second concentration V2, and compares the first concentration V1 with a first preset concentration Vy1 and a second preset concentration Vy2, respectively. Simultaneously, it calculates the first concentration difference ΔV1 between the first concentration V1 and the second concentration V2. When the oxygen concentration inside the passenger compartment is too low and the oxygen concentration outside the passenger compartment is high, the air conditioning system operates in external circulation mode and does not activate the oxygen generation module, allowing outside air to be introduced to replenish oxygen in a timely manner without wasting oxygen. When the oxygen concentration inside the passenger compartment is too low and the oxygen concentration outside the passenger compartment is high, the air conditioning system operates in external circulation mode and does not activate the oxygen generation module, allowing outside air to be introduced to replenish oxygen in a timely manner without wasting oxygen. When the outdoor oxygen concentration is low, the air conditioning system operates in recirculation mode and activates the oxygen generator to replenish oxygen in a timely manner, ensuring the health of passengers and driving safety. When the oxygen concentration inside the passenger compartment is within a suitable range, the system maintains the oxygen concentration at the target concentration V0, alleviating fatigue and boosting energy, thus ensuring driving safety. When the oxygen concentration inside the passenger compartment is high, the air conditioning system operates in recirculation mode and does not activate the oxygen generator, reducing oxygen consumption and saving oxygen and energy. This control makes the oxygen concentration control inside the vehicle's passenger compartment more intelligent, preventing oxygen waste and insufficient oxygen supply.

[0017] Furthermore, when the oxygen concentration inside the vehicle's passenger compartment is too low and the oxygen concentration outside the passenger compartment is high, the present invention obtains the air quality outside the passenger compartment. When the air quality outside the passenger compartment is poor, the air conditioning system operates in internal circulation mode and the oxygen generation module is activated. This can prevent external air pollution from harming the air environment inside the passenger compartment and thus affecting the respiratory system of the occupants, thereby affecting driving safety.

[0018] Furthermore, when the oxygen concentration in the passenger compartment of the vehicle is within a suitable range, the present invention calculates the second concentration difference ΔV2 between the second concentration V2 and the target oxygen concentration V0. When the oxygen concentration outside the passenger compartment is greater than the target oxygen concentration V0, the air conditioning system operates in internal circulation mode and the oxygen generation module is activated. When the oxygen concentration outside the passenger compartment is less than the target oxygen concentration V0, the air conditioning system operates in external circulation mode and the oxygen generation module is not activated, thereby maintaining the oxygen concentration in the passenger compartment at the target oxygen concentration V0. This makes the control of the vehicle's oxygen generation module more intelligent, improves the efficiency of the oxygen generation module, keeps the occupants in a constant oxygen environment, protects the health of the occupants, and ensures driving safety. Attached Figure Description

[0019] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which: Figure 1 This is a flowchart of the oxygen concentration control method for the driver's and passenger compartment of a vehicle according to the present invention; Figure 2 This is a flowchart of an embodiment of the oxygen concentration control method for the driver's compartment of a vehicle according to the present invention. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that although the steps of the oxygen concentration control method of the present invention are described in a specific order in this application, this order is not restrictive. Without departing from the basic principles of the present invention, those skilled in the art can perform the steps in different orders. For example, the execution order of steps S100 to S200 of the control method of the present invention can be interchanged, or steps S100 to S200 can be performed simultaneously. The adjusted technical solution is equivalent to the technical solution described in this application and therefore will also fall within the protection scope of the present invention.

[0022] It should be noted that in the description of this invention, terms such as "inner," "outer," "upper," and "lower," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] As indicated in the background art, the unintelligent control of oxygen concentration in the passenger compartment of existing vehicles leads to oxygen waste and insufficient oxygen supply. This invention provides a method and vehicle for controlling oxygen concentration in the passenger compartment. The method aims to determine whether oxygen supplementation is needed and the method of supplementation by acquiring the oxygen concentrations inside and outside the passenger compartment, calculating the difference between the two, and comparing the oxygen concentration inside the passenger compartment with a first preset concentration and a second preset concentration. Then, by activating the external circulation mode or the internal circulation mode and the oxygen generation module, oxygen is supplemented, thereby increasing the oxygen concentration inside the passenger compartment and maintaining it within a suitable range, ensuring driving safety.

[0025] Specifically, the present invention provides a vehicle including an air conditioning system and an oxygen generation module. The air conditioning system includes an internal circulation mode and an external circulation mode. The fan of the air conditioning system can deliver oxygen generated by the oxygen generation module into the passenger compartment of the vehicle.

[0026] For example, the air conditioning system of the present invention includes a vehicle roof-mounted air conditioner, which is an air conditioning system that integrates indoor and outdoor units. It is usually installed on the roof of the vehicle and is suitable for semi-trailer tractors, full-trailer tractors, RVs and trucks. It has the advantages of high concealment, convenient installation and small space occupation. The independent power supply and dual cooling and heating functions of the vehicle roof-mounted air conditioner can meet the needs when parking and resting, and it is especially suitable for areas with high summer temperatures or cold winters.

[0027] The vehicle rooftop air conditioner includes a heat pump module, an air duct, and a fan. The heat pump module exchanges heat through a refrigerant circulation loop to regulate the temperature inside the vehicle. The fan is installed inside the air duct and provides air circulation power, supporting multiple fan speed adjustments. The air outlets in the air duct can guide air in different zones. There are air valves inside the air duct that can adjust the state and angle of the fresh air inlets, thereby regulating the airflow speed entering the air duct.

[0028] The oxygen generation module mainly separates oxygen from the air through physical methods (such as pressure swing adsorption) to provide drivers and passengers with high concentrations of oxygen, thereby improving air quality, alleviating driving fatigue, and specifically addressing the problem of hypoxia at high altitudes.

[0029] The oxygen outlet of the oxygen generating module is connected to the air duct of the vehicle's rooftop air conditioner, and the oxygen is delivered to the passenger compartment through a fan.

[0030] It should be noted that this invention does not limit the type of oxygen generating module. For example, those skilled in the art can also configure the oxygen generating module to use polymer membrane technology to separate oxygen, etc. Such adjustments and changes to the specific type of oxygen generating module do not deviate from the principles and scope of this invention and should be limited to the protection scope of this invention.

[0031] The vehicle of the present invention obtains the oxygen concentration inside and outside the driver's cab and calculates the difference between the two. It then compares the oxygen concentration inside the driver's cab with a first preset concentration and a second preset concentration to determine whether the driver's cab needs oxygen replenishment and how to replenish it. By activating the external circulation mode or the internal circulation mode and the oxygen generation module, oxygen is replenished, thereby increasing the oxygen concentration inside the driver's cab and maintaining it within a suitable range, thus ensuring driving safety.

[0032] On the other hand, based on the vehicle described above, the present invention also provides a method for controlling the oxygen concentration in the passenger compartment of a vehicle, such as... Figure 1 As shown, the oxygen concentration control method of the present invention includes the following steps: S100: Obtain the oxygen concentration in the driver's cab, denoted as the first concentration V1.

[0033] For example, the present invention has a gas concentration sensor installed in the passenger compartment, which can detect the oxygen concentration in the passenger compartment and transmit the oxygen concentration information to the vehicle controller.

[0034] S200: Obtain the oxygen concentration outside the driver's and passenger's cabin, denoted as the second concentration V2.

[0035] For example, the present invention has a gas concentration sensor installed outside the driver's compartment, which can detect the oxygen concentration outside the driver's compartment and transmit the oxygen concentration information to the vehicle controller.

[0036] S300: Based on the first concentration V1 and the second concentration V2, selectively operate the internal circulation mode or the external circulation mode, and selectively activate the oxygen generation module.

[0037] For example, the vehicle of the present invention can determine whether oxygen needs to be supplemented in the passenger compartment based on the first concentration V1 and the second concentration V2, and determine whether to supplement oxygen by introducing air from outside the passenger compartment or by turning on the oxygen generation module, so that the control of oxygen concentration in the passenger compartment of the vehicle is more intelligent and will not cause problems such as oxygen waste and insufficient oxygen supply.

[0038] For example, such as Figure 2 As shown, step S300 includes steps S310 to S360.

[0039] S310: Compare the first concentration V1 with the first preset concentration Vy1 and the second preset concentration Vy2, respectively, where Vy1 < Vy2.

[0040] For example, the present invention can directly compare the first concentration V1 with the first preset concentration Vy1 and the second preset concentration Vy2, or it can calculate the difference between the first concentration V1 and the first preset concentration Vy1 and the second preset concentration Vy2, etc., to adjust the oxygen supply strategy.

[0041] S320: If the first concentration V1 is less than the first preset concentration Vy1, then calculate the first concentration difference ΔV1 between the first concentration V1 and the second concentration V2; where, ΔV1 = V2 - V1.

[0042] For example, the first preset concentration Vy1 of the present invention is 19.5%, the second preset concentration Vy2 is 23.5%, and the detected first concentration V1 is 19%. V1 < Vy1, which indicates that the oxygen concentration in the passenger compartment is low. Prolonged exposure to an oxygen-deficient environment can lead to altitude sickness, which has affected the health of the passengers and driving safety. At this time, the first concentration difference ΔV1 between the first concentration V1 and the second concentration V2 is calculated to determine whether the oxygen concentration outside the passenger compartment is sufficient.

[0043] S330: Compare the first concentration difference ΔV1 with the first preset value ΔV1y.

[0044] For example, the present invention can directly compare the first concentration difference ΔV1 with the first preset value ΔV1y, or calculate the ratio between the two, etc.

[0045] S340: Based on the comparison results, selectively operate the internal circulation mode or the external circulation mode, and selectively activate the oxygen generation module.

[0046] In other words, by comparing the oxygen concentration inside and outside the driver's cabin, it can be determined whether oxygen is replenished through external air circulation or through internal air circulation and the oxygen generation module.

[0047] It should be noted that the present invention does not limit the magnitude of the first preset concentration Vy1 and the second preset concentration Vy2. For example, those skilled in the art can set the first preset concentration Vy1 to 19.4% or 19.6%, and the second preset concentration Vy2 to 23.4% or 23.6%, etc. Such adjustments and changes to the specific magnitudes of the first preset concentration Vy1 and the second preset concentration Vy2 do not deviate from the principles and scope of the present invention, and should all be limited to the protection scope of the present invention.

[0048] In a first preferred embodiment, step S340 includes steps S341 to S342.

[0049] S341: If the first concentration difference △V1 is greater than the first preset value △V1y, the air conditioning system will run in external circulation mode and the oxygen generation module will not be turned on.

[0050] For example, the first concentration V1 detected by the present invention is 19%, the second concentration V2 is 20.5%, the first concentration difference ΔV1 is ΔV1=V2-V1=1.5%, the first preset value ΔV1y is 1%, and ΔV1>ΔV1y indicates that the oxygen concentration outside the driver's seat is high enough to meet the oxygen replenishment needs of the driver's seat. At this time, the air conditioning system is set to external circulation mode and the oxygen generation module is not turned on to replenish oxygen. This allows the oxygen to be replenished using the air outside the driver's seat, avoiding the waste of resources caused by turning on the oxygen generation module.

[0051] S342: If the first concentration difference △V1 is not greater than the first preset value △V1y, then the air conditioning system will run in internal circulation mode and the oxygen generation module will be turned on.

[0052] For example, the first concentration V1 detected by the present invention is 19%, the second concentration V2 is 19.1%, the first concentration difference ΔV1 is ΔV1=V2-V1=0.1%, the first preset value ΔV1y is 1%, ΔV1<ΔV1y indicates that the oxygen concentration outside the driver's seat is low and cannot meet the oxygen replenishment needs inside the driver's seat. At this time, the air conditioning system is set to internal circulation mode and the oxygen generation module is turned on to replenish oxygen, which can quickly replenish oxygen.

[0053] In the second preferred embodiment, step S340 includes steps S343 to S346.

[0054] S343: If the first concentration difference △V1 is greater than the first preset value △V1y, then obtain the air quality outside the driver and passenger room.

[0055] For example, the first concentration V1 detected by the present invention is 19%, the second concentration V2 is 20.5%, the first concentration difference ΔV1 is ΔV1=V2-V1=1.5%, the first preset value ΔV1y is 1%, ΔV1>ΔV1y, indicating that the oxygen concentration outside the driver and passenger room is high, and it is necessary to further judge the air quality outside the driver and passenger room.

[0056] S344: If the air quality outside the passenger compartment meets the preset conditions, the air conditioning system will operate in external circulation mode and the oxygen generation module will not be activated.

[0057] For example, the vehicle of the present invention is also equipped with an air quality detection device, which can detect the content of PM2.5, PM10, sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), ozone (O3), volatile organic compounds (VOCs) in the air, thereby determining the air quality. When the air quality meets the standard, the air conditioning system is set to external circulation mode and the oxygen generation module is not turned on to supplement oxygen. This allows the oxygen to be supplemented by the air outside the vehicle, avoiding the waste of resources caused by turning on the oxygen generation module.

[0058] S345: If the air quality outside the driver's and passenger's rooms does not meet the preset conditions, the air conditioning system will operate in recirculation mode and the oxygen generation module will be activated.

[0059] For example, the air quality detection device of the present invention detects that the PM2.5 and carbon monoxide levels outside the driver's and passenger's room exceed the standard. If the driver or passenger inhales these levels, it will cause damage to their respiratory system. At this time, the air conditioning system is set to internal circulation mode and the oxygen generation module is turned on to replenish oxygen, which can quickly replenish oxygen.

[0060] S346: If the first concentration difference △V1 is not greater than the first preset value △V1y, then the air conditioning system will run in internal circulation mode and the oxygen generation module will be turned on.

[0061] For example, the first concentration V1 detected by the present invention is 19%, the second concentration V2 is 19.1%, the first concentration difference ΔV1 is ΔV1=V2-V1=0.1%, the first preset value ΔV1y is 1%, ΔV1<ΔV1y indicates that the oxygen concentration outside the driver's seat is low and cannot meet the oxygen replenishment needs inside the driver's seat. At this time, the air conditioning system is set to internal circulation mode and the oxygen generation module is turned on to replenish oxygen, which can quickly replenish oxygen.

[0062] It should be noted that the present invention does not limit the size of the first preset value △V1y. For example, those skilled in the art can set the first preset value △V1y to 0.9% or 1.1%, etc. Such adjustments and changes to the specific size of the first preset value △V1y do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0063] S350: If the first concentration V1 is not less than the first preset concentration Vy1 and not greater than the second preset concentration Vy2, then based on the second concentration V2 and the target oxygen concentration V0, the internal circulation mode or the external circulation mode is selectively operated, and the oxygen generation module is selectively turned on, so that the oxygen concentration in the passenger compartment is maintained at the target oxygen concentration V0.

[0064] For example, the first preset concentration Vy1 of the present invention is 19.5%, the second preset concentration Vy2 is 23.5%, and the detected first concentration V1 is 21%. Vy1 < V1 < Vy2, indicating that the oxygen concentration in the passenger compartment is within a suitable range. At this time, by running the internal circulation mode or the external circulation mode, or by turning on the oxygen generation module, the oxygen concentration in the passenger compartment can be maintained at the target oxygen concentration V0, i.e., constant oxygen mode. In constant oxygen mode, the concentration of the driver and passengers can be improved and fatigue can be relieved.

[0065] Preferably, step S350 includes steps S351 to S354.

[0066] S351: Calculate the second concentration difference ΔV2 between the second concentration V2 and the target oxygen concentration V0; where, ΔV2=|V2-V0|.

[0067] For example, the first concentration V1 of the present invention is 21%, the second concentration V2 is 19%, the target oxygen concentration V0 is 21%, and ΔV2=|V2-V0|=2%.

[0068] S352: Compare the second concentration difference ΔV2 with the second preset value ΔV2y.

[0069] For example, the present invention can directly compare the second concentration difference ΔV2 with the second preset value ΔV2y, or it can calculate the ratio between the two, etc.

[0070] S353: If the second concentration difference △V2 is greater than the second preset value △V2y, the air conditioning system will run in internal circulation mode and the oxygen generation module will be turned on.

[0071] For example, the first concentration V1 of the present invention is 21%, the second concentration V2 is 19%, the target oxygen concentration V0 is 21%, ΔV2=|V2-V0|=2%, the second preset value ΔV2y is 0.5%, ΔV2>ΔV2y indicates that the oxygen concentration outside the driver's seat is significantly different from the target oxygen concentration V0. At this time, the air conditioning system is set to internal circulation mode and the oxygen generation module is turned on to supplement oxygen and maintain constant oxygen mode.

[0072] S354: If the second concentration difference △V2 is not greater than the second preset value △V2y, the air conditioning system will run in external circulation mode and the oxygen generation module will not be turned on.

[0073] For example, the first concentration V1 of the present invention is 21%, the second concentration V2 is 20.7%, the target oxygen concentration V0 is 21%, ΔV2=|V2-V0|=0.3%, the second preset value ΔV2y is 0.5%, ΔV2<ΔV2y indicates that the oxygen concentration outside the driver's seat is close to the target oxygen concentration V0. At this time, the air conditioning system is set to external circulation mode and the oxygen generation module is not turned on. Oxygen is supplemented by introducing external air to maintain a constant oxygen mode, which can save energy.

[0074] It should be noted that the present invention does not limit the size of the second preset value △V2y. For example, those skilled in the art can set the second preset value △V2y to 0.4% or 0.6%, etc. Such adjustments and changes to the specific size of the second preset value △V2y do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0075] S360: If the first concentration V1 is greater than the second preset concentration Vy2, the air conditioning system will run in internal circulation mode and the oxygen generation module will not be turned on.

[0076] For example, the first preset concentration Vy1 of the present invention is 19.5%, the second preset concentration Vy2 is 23.5%, and the detected first concentration V1 is 23.7%. V1 > Vy2, indicating that there is sufficient oxygen in the passenger compartment. At this time, the internal circulation mode is run and the oxygen generation module is not turned on, the oxygen in the passenger compartment is consumed normally, the physical and mental state of the driver and passengers is good, and energy can be saved.

[0077] Preferably, the target oxygen concentration V0 is positively correlated with the altitude of the vehicle.

[0078] For example, as altitude increases, the partial pressure of oxygen decreases, leading to a reduction in the efficiency of oxygen entering the bloodstream. The body then needs to inhale more air to meet its oxygen requirements. Therefore, the target oxygen concentration V0 needs to be positively correlated with the vehicle's altitude. For instance: at 1500m, the target oxygen concentration V0 is set at 21.2%; at 2500m, it is set at 21.8%; at 3500m, it is set at 22.7%; at 4500m, it is set at 23.9%; and above 5000m, it is set at 24.5%.

[0079] Preferably, the vehicle of the present invention further includes a controller, which is capable of controlling the vehicle to perform the oxygen concentration control method described above.

[0080] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0081] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method of controlling oxygen concentration in a passenger compartment of a vehicle, characterized by, The vehicle includes an air conditioning system and an oxygen generating module, the air conditioning system includes an internal circulation mode and an external circulation mode, a fan of the air conditioning system can send oxygen generated by the oxygen generating module into the cabin, and the oxygen concentration control method includes: Obtaining the oxygen concentration in the cabin, denoted as a first concentration V1; Obtaining the oxygen concentration outside the cabin, denoted as a second concentration V2; According to the first concentration V1 and the second concentration V2, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module.

2. The oxygen concentration control method according to claim 1, characterized by, The step of "according to the first concentration V1 and the second concentration V2, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module" specifically includes: Comparing the first concentration V1 with a first preset concentration Vy1 and a second preset concentration Vy2 respectively, wherein Vy1 According to the comparison result and the second concentration V2, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module.

3. The oxygen concentration control method according to claim 2, characterized by, The step of "according to the comparison result and the second concentration V2, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module" specifically includes: If the first concentration V1 is less than the first preset concentration Vy1, calculating a first concentration difference AV1 of the first concentration V1 and the second concentration V2; wherein AV1=V2-V1; Comparing the first concentration difference AV1 with a first preset value AV1y; According to the comparison result, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module.

4. The oxygen concentration control method according to claim 3, characterized by, The step of "according to the comparison result, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module" specifically includes: If the first concentration difference AV1 is greater than the first preset value AV1y, making the air conditioning system run the external circulation mode and not starting the oxygen generating module; and / or If the first concentration difference AV1 is not greater than the first preset value AV1y, making the air conditioning system run the internal circulation mode and starting the oxygen generating module.

5. The oxygen concentration control method according to claim 3, characterized by, The step of "according to the comparison result, selectively running the internal circulation mode or the external circulation mode, and selectively starting the oxygen generating module" specifically includes: If the first concentration difference AV1 is greater than the first preset value AV1y, obtaining the air quality outside the cabin; If the air quality outside the cabin meets a preset condition, making the air conditioning system run the external circulation mode and not starting the oxygen generating module; If the air quality outside the cabin does not meet the preset condition, making the air conditioning system run the internal circulation mode and starting the oxygen generating module; and / or If the first concentration difference AV1 is not greater than the first preset value AV1y, making the air conditioning system run the internal circulation mode and starting the oxygen generating module.

6. The oxygen concentration control method according to claim 2, characterized by, The step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result and the second concentration V2" specifically comprises: If the first concentration V1 is not less than the first preset concentration Vy1 and not greater than the second preset concentration Vy2, then selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the second concentration V2 and a target oxygen concentration V0 so as to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0; and / or The step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result and the second concentration V2" specifically comprises: If the first concentration V1 is greater than the second preset concentration Vy2, then operating the air conditioning system in the inner circulation mode and not starting the oxygen generation module.

7. The oxygen concentration control method according to claim 6, characterized by, The step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the second concentration V2 and a target oxygen concentration V0 so as to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0" specifically comprises: calculating a second concentration difference AV2 between the second concentration V2 and the target oxygen concentration V0; wherein AV2 = |V2-V0|; comparing the second concentration difference AV2 with a second preset value AV2y; selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result so as to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0.

8. The oxygen concentration control method according to claim 7, characterized by, The step of "selectively operating the inner circulation mode or the outer circulation mode and selectively starting the oxygen generation module according to the comparison result so as to maintain the oxygen concentration in the passenger compartment at the target oxygen concentration V0" specifically comprises: If the second concentration difference AV2 is greater than the second preset value AV2y, then operating the air conditioning system in the inner circulation mode and starting the oxygen generation module; and / or If the second concentration difference AV2 is not greater than the second preset value AV2y, then operating the air conditioning system in the outer circulation mode and not starting the oxygen generation module.

9. The oxygen concentration control method according to claim 6, characterized by, The target oxygen concentration V0 has a positive relationship with the altitude at which the vehicle is located.

10. A vehicle characterized by comprising: The vehicle comprises a controller configured to perform the oxygen concentration control method according to any one of claims 1 to 9.

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