Vehicle-mounted oxygen supply control method and device and vehicle

Abstract

The invention relates to a vehicle-mounted oxygen supply control method and device and a vehicle. The vehicle-mounted oxygen supply control method comprises the steps that data of a plurality of oxygen concentration sensors in a compartment are obtained; wherein the oxygen concentration sensors are arranged at dispersion oxygen supply ports at different positions of the carriage; determining the actual oxygen concentration in the compartment based on the data of each oxygen concentration sensor; and under the condition that the actual oxygen concentration at the oxygen outlet of the oxygen generation device meets the first target oxygen concentration, the oxygen output at the oxygen outlet of the oxygen generation device is controlled based on the actual oxygen concentration in the compartment and the second target oxygen concentration in the compartment, so that the actual oxygen concentration in the compartment meets the second target oxygen concentration, and the oxygen output at the oxygen outlet of the oxygen generation device is controlled. According to the invention, the detection deviation of the oxygen concentration in the carriage can be effectively reduced, so that the control precision of the oxygen flow in the carriage is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to an on-board oxygen supply control method, device and vehicle. Background Technology

[0002] As living standards continue to improve in my country, more and more people are taking self-driving tours to the western plateau regions. However, a typical disadvantage of such tours is altitude sickness, primarily caused by a significant drop in oxygen concentration. For example, at an altitude of 3500m, the oxygen concentration is only 75% of that at sea level, posing a considerable challenge for self-driving tourists. In response, in-vehicle oxygen supply control methods offer a good solution to address altitude sickness.

[0003] Diffuse oxygen supply has the advantages of high comfort, large oxygen supply area, and wide applicability. Conventional diffuse oxygen supply strategies are controlled by a single space oxygen concentration sensor. Using a single oxygen concentration sensor for detection and control is affected by many external factors, which can lead to detection bias and cause the oxygen concentration control output in the vehicle to fail to achieve the expected results. Summary of the Invention

[0004] Therefore, it is necessary to provide a vehicle-mounted oxygen supply control method, device, and vehicle to address the aforementioned technical problems.

[0005] In a first aspect, the method provided in the embodiments of this application includes:

[0006] Data from multiple oxygen concentration sensors inside the carriage is acquired; wherein each oxygen concentration sensor is located at a diffusion oxygen supply port at a different position in the carriage.

[0007] Based on the data from each of the oxygen concentration sensors, the actual oxygen concentration inside the carriage is determined;

[0008] When the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, the oxygen output at the oxygen outlet of the oxygen generator is controlled based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration.

[0009] In one embodiment, determining the actual oxygen concentration inside the carriage based on data from each of the oxygen concentration sensors includes:

[0010] Obtain the distance between each oxygen concentration sensor and the oxygen outlet;

[0011] The actual oxygen concentration inside the carriage is determined based on the distance between each oxygen concentration sensor and the oxygen outlet, as well as the data from each oxygen concentration sensor.

[0012] In one embodiment, controlling the oxygen output at the oxygen generator outlet based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage includes:

[0013] An error signal is determined based on the actual oxygen concentration inside the carriage and the first target oxygen concentration.

[0014] Based on the error signal, determine the proportional and integral terms of the PI control;

[0015] Based on the proportional term and the integral term, the control quantity of oxygen output at the oxygen outlet is determined;

[0016] The opening degree of the total valve at the oxygen outlet is controlled based on the oxygen output control amount, so as to control the oxygen output at the oxygen outlet.

[0017] In one embodiment, the method further includes:

[0018] Obtain the current altitude of the environment in which the carriage is located;

[0019] Based on the actual oxygen concentration inside the carriage, the current altitude, and the second target oxygen concentration inside the carriage, the oxygen output at the oxygen outlet of the oxygen generator is controlled so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration.

[0020] In one embodiment, controlling the oxygen output at the oxygen generator outlet based on the actual oxygen concentration inside the carriage, the current altitude, and the second target oxygen concentration inside the carriage, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration, includes:

[0021] An error signal is determined based on the actual oxygen concentration inside the carriage and the second target oxygen concentration.

[0022] Based on the error signal, determine the proportional and integral terms of the PI control;

[0023] Based on the proportional term and the integral term, the control quantity of the oxygen output is determined;

[0024] Based on the current altitude, the gain of the oxygen output control is adjusted to obtain the final oxygen output control.

[0025] The opening degree of the total valve at the oxygen outlet is controlled based on the final control amount of the oxygen output, so as to control the oxygen output at the oxygen outlet.

[0026] In one embodiment, the method further includes:

[0027] The control parameters of the integral term and the output oxygen are limited based on the target oxygen flow rate of the carriage.

[0028] In one embodiment, the method further includes:

[0029] Obtain the actual oxygen concentration at the oxygen outlet of the oxygen generator;

[0030] Based on the actual oxygen concentration at the oxygen outlet and the first target oxygen concentration, the compressor speed of the oxygen generating device is controlled so that the actual oxygen concentration at the oxygen outlet of the oxygen generating device meets the first target oxygen concentration.

[0031] In one embodiment, the method further includes:

[0032] Determine whether the data from each oxygen concentration sensor deviates from the threshold.

[0033] If so, the oxygen output at the corresponding diffused oxygen supply port will be adjusted based on the number of passengers seated in the carriage and the data from the corresponding oxygen concentration sensor.

[0034] In one embodiment, adjusting the oxygen output at the corresponding diffused oxygen supply port based on the number of passengers seated in the carriage and the data from the corresponding oxygen concentration sensor includes:

[0035] Based on the number of seated people and the first coefficient table, the first coefficient is determined;

[0036] The second coefficient is determined based on the data from the corresponding oxygen concentration sensor and the second coefficient table.

[0037] Based on the weighted value of the first coefficient and the second coefficient, the control amount of oxygen output at the corresponding diffused oxygen supply port is obtained; and the oxygen output at the corresponding diffused oxygen supply port is adjusted based on the control amount.

[0038] Secondly, embodiments of this application also provide an on-board oxygen supply control device, the device comprising:

[0039] The acquisition module is used to acquire data from multiple oxygen concentration sensors inside the carriage; wherein each of the oxygen concentration sensors is located at a diffusion oxygen supply port at a different position in the carriage.

[0040] The determination module is used to determine the actual oxygen concentration inside the carriage based on the data from each of the oxygen concentration sensors.

[0041] The control module is used to control the oxygen output at the oxygen outlet of the oxygen generator, based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage, when the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration.

[0042] Thirdly, embodiments of this application also provide a vehicle, including the on-board oxygen supply control device as described in the second aspect above.

[0043] The aforementioned vehicle-mounted oxygen supply control method, device, and vehicle, during vehicle operation, generate oxygen through an oxygen generator. When the actual oxygen concentration at the outlet of the oxygen generator meets a first target oxygen concentration, the actual oxygen concentration inside the vehicle compartment is determined comprehensively based on oxygen concentrations measured by multiple oxygen concentration sensors within the compartment. Then, based on the actual oxygen concentration inside the compartment and the second target oxygen concentration, the oxygen flow rate at the outlet of the oxygen generator is controlled to ensure that the actual oxygen concentration inside the compartment meets the second target oxygen concentration. Compared to related technologies that control oxygen flow rate based solely on the actual oxygen concentration inside the compartment measured by a single spatial oxygen concentration sensor, this application effectively reduces the detection deviation of the oxygen concentration inside the compartment, thereby improving the control accuracy of the oxygen flow rate inside the compartment.

[0044] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0045] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0046] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted oxygen generator in one embodiment;

[0047] Figure 2 This is a flowchart illustrating the on-board oxygen supply control method in one embodiment;

[0048] Figure 3 This is a schematic diagram of controlling the oxygen flow rate at the oxygen outlet of the oxygen generator in the first embodiment;

[0049] Figure 4 This is a schematic diagram of controlling the oxygen flow rate at the oxygen outlet of the oxygen generator in the second embodiment;

[0050] Figure 5 This is a schematic diagram illustrating the control of the oxygen flow rate at the oxygen outlet of the oxygen generator in the third embodiment.

[0051] Figure 6 This is a schematic diagram of feedforward control of the valve opening at the diffused oxygen supply port in one embodiment;

[0052] Figure 7 This is a structural block diagram of the vehicle-mounted oxygen supply control device in the third embodiment. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0054] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0055] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0056] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0057] The method embodiment provided in this example is applied to an on-board oxygen supply system, which includes an oxygen generator and an oxygen supply device. The oxygen generator produces oxygen, and a main valve is installed at the oxygen outlet to control the oxygen flow rate at the outlet. The oxygen generator can be an on-board oxygen concentrator. Figure 1 This is a schematic diagram of the vehicle-mounted oxygen generator in an embodiment of this application. An oxygen supply device is connected to the oxygen generator, and the oxygen supply device includes multiple diffused oxygen supply ports distributed at different locations in the vehicle compartment, used to diffuse oxygen from the oxygen outlet of the oxygen generator into the vehicle compartment. Each diffused oxygen supply port is equipped with a sub-valve for controlling the oxygen flow rate at each port.

[0058] This application provides an embodiment of a vehicle-mounted oxygen supply control method, such as... Figure 2 As shown, the method includes the following steps:

[0059] Step 201: Obtain data from multiple oxygen concentration sensors inside the carriage; wherein each oxygen concentration sensor is installed at a diffusion oxygen supply port at a different location in the carriage.

[0060] Step 202: Determine the actual oxygen concentration inside the carriage based on the data from each of the oxygen concentration sensors.

[0061] Step 203: When the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, the oxygen output at the oxygen outlet of the oxygen generator is controlled based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration.

[0062] The first target oxygen concentration is the set value of the oxygen concentration at the outlet of the oxygen generator, and the second target oxygen concentration is the set value of the oxygen concentration inside the vehicle compartment. The specific values ​​of the first and second target oxygen concentrations are empirical values. The first and second target oxygen concentrations will be adjusted accordingly based on the current altitude. Optionally, the first target oxygen concentration is 93%, and the second target concentration can be a value within a specified concentration range, which can be 23%-25%, and this range will decrease to 21%-23% under high-altitude conditions.

[0063] In steps S201 to S203 above, during vehicle operation, oxygen is generated by an oxygen generator. When the actual oxygen concentration at the outlet of the oxygen generator meets the first target oxygen concentration, data from multiple oxygen concentration sensors inside the vehicle compartment is acquired. Based on the data from each oxygen concentration sensor, the actual oxygen concentration inside the vehicle compartment is determined. Based on the actual oxygen concentration inside the vehicle compartment and the second target oxygen concentration inside the vehicle compartment, the oxygen flow rate at the outlet of the oxygen generator is controlled to ensure that the actual oxygen concentration inside the vehicle compartment meets the second target oxygen concentration. Compared to related technologies that control oxygen flow rate based on the actual oxygen concentration inside the vehicle compartment measured by only one spatial oxygen concentration sensor, this application can effectively reduce the detection deviation of oxygen concentration inside the vehicle compartment, thereby improving the control accuracy of oxygen flow rate inside the vehicle compartment.

[0064] In one embodiment, determining the actual oxygen concentration inside the carriage based on data from each of the oxygen concentration sensors includes the following steps:

[0065] Step S301: Obtain the distance between each oxygen concentration sensor and the oxygen outlet.

[0066] The distance between each oxygen concentration sensor and the oxygen outlet can be obtained through real-time detection or by storing the distances in a memory for real-time reading.

[0067] Step S302: Based on the distance between each oxygen concentration sensor and the oxygen outlet and the data from each oxygen concentration sensor, determine the actual oxygen concentration inside the carriage.

[0068] This application embodiment uses data measured by multiple oxygen concentration sensors and the distance between each oxygen concentration sensor and the oxygen outlet to comprehensively determine the actual oxygen concentration inside the carriage, which can effectively reduce the detection deviation of oxygen concentration inside the carriage, thereby improving the control accuracy of oxygen flow rate inside the carriage.

[0069] In one embodiment, four diffused oxygen supply ports are installed at different locations in the carriage, and correspondingly, an oxygen concentration sensor is installed at each diffused oxygen supply port. As shown in Table 1, the distance between each oxygen concentration sensor and the oxygen outlet of the oxygen generator is obtained, and the concentration value data detected by each oxygen concentration sensor is also obtained. Wherein, L1, L2, L3, and L4 are the distance values ​​between each oxygen concentration sensor and the oxygen outlet of the oxygen generator, and R1, R2, R3, and R4 are the diffused oxygen concentration values ​​at different spatial locations within the carriage detected by each oxygen concentration sensor.

[0070] Table 1

[0071]

[0072] The actual oxygen concentration inside the carriage in this application is determined by a weighted average method. The weighting coefficient is obtained by measuring the distance between multiple oxygen concentration sensors and the oxygen outlet. Specifically, the actual oxygen concentration R inside the carriage is determined by the following formula.

[0073]

[0074] Each oxygen concentration sensor employs multi-channel independent signal processing technology to eliminate cross-interference between sensors. When an oxygen concentration value collected by a certain oxygen concentration sensor is abnormal, the oxygen concentration value collected by that oxygen concentration sensor and the corresponding distance from the oxygen outlet are discarded, and the actual oxygen concentration in the carriage is calculated according to the above formula.

[0075] In one embodiment, such as Figure 3 As shown, controlling the oxygen output at the oxygen outlet of the oxygen generator based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage includes the following steps: determining an error signal based on the actual oxygen concentration inside the carriage and the second target oxygen concentration; determining the proportional and integral terms of PI (proportional-integral) control based on the error signal; determining the control quantity of the oxygen output at the oxygen outlet based on the proportional and integral terms; and controlling the opening of the total valve at the oxygen outlet based on the control quantity of the oxygen output, thereby controlling the oxygen output at the oxygen outlet.

[0076] In one embodiment, the method further includes: obtaining the current altitude of the environment in which the carriage is located; and controlling the oxygen output at the oxygen outlet of the oxygen generating device based on the actual oxygen concentration in the carriage, the current altitude, and the second target oxygen concentration in the carriage, so that the actual oxygen concentration in the carriage meets the second target oxygen concentration.

[0077] Specifically, since different altitudes affect the required target oxygen concentration inside the vehicle compartment, the oxygen concentration inside the compartment is generally stable within a safe range of 23%-25%, which may decrease to 21%-23% in high-altitude conditions. This application acquires the current altitude of the environment inside the compartment in real time during vehicle operation, and controls the oxygen output at the oxygen generator outlet based on the actual oxygen concentration inside the compartment, the current altitude, and the second target oxygen concentration inside the compartment, to meet the influence of different altitude environments.

[0078] In one embodiment, such as Figure 4 As shown, the oxygen output at the oxygen generator outlet is controlled based on the actual oxygen concentration inside the carriage, the current altitude, and the second target oxygen concentration inside the carriage. This involves: determining an error signal based on the actual oxygen concentration inside the carriage and the second target oxygen concentration; determining the proportional and integral terms of the PI control based on the error signal; determining the control quantity of the oxygen output based on the proportional and integral terms; adjusting the gain of the control quantity of the oxygen output based on the current altitude; and controlling the opening of the main valve at the oxygen outlet based on the final control quantity of the oxygen output.

[0079] In one embodiment, such as Figure 5 As shown, the control of the oxygen output at the oxygen generator outlet based on the actual oxygen concentration inside the carriage, the current altitude, and the second target oxygen concentration inside the carriage further includes limiting the control amount of the integral term and the oxygen output based on the target oxygen flow rate inside the carriage.

[0080] The target oxygen flow rate of the carriage is a value preset by the user. In this embodiment, the target oxygen flow rate is used to limit the initial control quantity of the integral term and the total valve opening, thereby improving the stability of the system control.

[0081] In one embodiment, the method further includes: obtaining the actual oxygen concentration at the oxygen outlet of the oxygen generator; and controlling the compressor speed of the oxygen generator based on the actual oxygen concentration at the oxygen outlet and the first target oxygen concentration, so that the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration.

[0082] Specifically, in order to ensure that the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, this application may also employ a PI control method. This involves detecting the actual oxygen concentration at the oxygen outlet using an oxygen concentration sensor, obtaining a control value for the compressor speed of the oxygen generator based on the error between the actual oxygen concentration at the outlet and the first target oxygen concentration, and controlling the compressor speed based on this control value to ensure that the actual oxygen concentration at the oxygen outlet meets the first target oxygen concentration.

[0083] In one embodiment, the compressor speed of the oxygen generating device is controlled based on the actual oxygen concentration at the oxygen outlet, the current altitude, and the first target oxygen concentration, so that the actual oxygen concentration at the oxygen outlet of the oxygen generating device meets the first target oxygen concentration.

[0084] In one embodiment, the method further includes: determining whether the data from each of the oxygen concentration sensors deviates from a threshold; if so, adjusting the oxygen output at the corresponding diffused oxygen supply port based on the number of passengers seated in the carriage and the data from the corresponding oxygen concentration sensors. For example, the threshold is set to 18%.

[0085] The number of people seated can be obtained by pressure sensors installed on each seat in the carriage, or by identifying and detecting the number of people by collecting photos of the carriage.

[0086] In one embodiment, such as Figure 6As shown, adjusting the oxygen output at the corresponding diffused oxygen supply port based on the number of passengers seated in the carriage and the data from the corresponding oxygen concentration sensor includes the following steps: The number of passengers seated is obtained from the seat pressure sensor. Based on the number of passengers seated and a first coefficient table, a first coefficient is determined. The first coefficient table is a coefficient table relating the number of passengers seated to the valve opening at the diffused oxygen supply port. By looking up the table, the first coefficient α1 corresponding to the current number of passengers is determined. A second coefficient is determined based on the oxygen concentration data from the corresponding oxygen concentration sensor and a second coefficient table. The second coefficient table is a coefficient table relating the oxygen concentration data from the oxygen concentration sensor to the valve opening at the diffused oxygen supply port. By looking up the table, the second coefficient α2 corresponding to the oxygen concentration data is determined. Based on the weighted value of the first and second coefficients, a control value for the oxygen output at the corresponding diffused oxygen supply port is obtained. The valve opening at the corresponding diffused oxygen supply port is adjusted based on the control value, thereby controlling the oxygen flow rate at the corresponding diffused oxygen supply port.

[0087] Specifically, the valve opening O of the corresponding diffused oxygen supply port is determined by the following formula.

[0088]

[0089] Among them, O1 and O2 are weighting coefficients. The coefficients in the first and second coefficient tables, as well as the weighting coefficients O1 and O2, need to be calibrated based on the actual vehicle.

[0090] The present embodiment will now be described and illustrated through preferred embodiments, wherein the on-board oxygen supply control method includes the following steps:

[0091] Step 301: The actual oxygen concentration at the oxygen outlet of the oxygen generator is obtained in real time by detecting the oxygen concentration sensor at the oxygen outlet of the oxygen generator.

[0092] Step 302: Obtain the current altitude of the environment in which the carriage is located in real time.

[0093] Step 303: Based on the actual oxygen concentration at the oxygen outlet of the oxygen generator, the current altitude, and the first target oxygen concentration, control the compressor speed of the oxygen generator to ensure that the actual oxygen concentration at the oxygen outlet meets the first target oxygen concentration. The first target oxygen concentration is set to 93%.

[0094] Step 304: If the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, the oxygen concentration at each of the diffusion oxygen supply ports is obtained in real time by multiple oxygen concentration sensors inside the carriage.

[0095] Step 305: Determine the actual oxygen concentration inside the carriage based on the oxygen concentration data detected by each oxygen concentration sensor at the diffused oxygen supply port.

[0096] Step 306: Based on the actual oxygen concentration inside the carriage, the current altitude, and the second target oxygen concentration inside the carriage, control the opening of the main valve at the oxygen outlet of the oxygen generator to control the oxygen flow rate, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration. The second target oxygen concentration is set to 24%.

[0097] Step 306: Determine whether the oxygen concentration detected by each oxygen concentration sensor in the carriage deviates from the threshold; if so, adjust the valve opening of the corresponding diffused oxygen supply port according to the number of seated people and the oxygen concentration detected by the corresponding oxygen concentration sensor to control the oxygen flow rate of the diffused oxygen supply port. The threshold is set to 18%.

[0098] This application also provides an embodiment of an on-board oxygen supply control device, such as... Figure 7 As shown, the device includes:

[0099] The acquisition module 10 is used to acquire data from multiple oxygen concentration sensors inside the carriage; wherein each of the oxygen concentration sensors is installed at a diffusion oxygen supply port at a different location in the carriage.

[0100] The determining module 20 is used to determine the actual oxygen concentration inside the carriage based on the data from each of the oxygen concentration sensors;

[0101] The control module 30 is used to control the oxygen output at the oxygen outlet of the oxygen generator based on the actual oxygen concentration inside the carriage and the second target oxygen concentration inside the carriage, when the actual oxygen concentration at the oxygen outlet of the oxygen generator meets the first target oxygen concentration, so that the actual oxygen concentration inside the carriage meets the second target oxygen concentration.

[0102] It should be noted that the information interaction and execution process between the above modules are based on the same concept as the method embodiment of this application, and are the system corresponding to the above vehicle oxygen supply control method. All implementation methods in the above method embodiment are applicable to the embodiment of this device. For details on its specific functions and the resulting technical effects, please refer to the method embodiment section, which will not be repeated here.

[0103] This application also provides a vehicle including the on-board oxygen supply control device as described in the above embodiments.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An in-vehicle oxygen supply control method characterized by comprising: The method comprises: acquiring data of a plurality of oxygen concentration sensors in a vehicle cabin; wherein each oxygen concentration sensor is arranged at a diffused oxygen supply port at a different position in the vehicle cabin; determining the actual oxygen concentration in the vehicle cabin based on the data of each oxygen concentration sensor; when the actual oxygen concentration at the oxygen outlet of the oxygen generating device meets the first target oxygen concentration, controlling the oxygen output at the oxygen outlet of the oxygen generating device based on the actual oxygen concentration in the vehicle cabin and the second target oxygen concentration in the vehicle cabin, so that the actual oxygen concentration in the vehicle cabin meets the second target oxygen concentration.

2. The method of claim 1, wherein, The method comprises: acquiring the distance between each oxygen concentration sensor and the oxygen outlet; determining the actual oxygen concentration in the vehicle cabin based on the distance between each oxygen concentration sensor and the oxygen outlet and the data of each oxygen concentration sensor.

3. The method of claim 2, wherein, The method comprises: determining an error signal based on the actual oxygen concentration in the vehicle cabin and the second target oxygen concentration; determining the proportional term and the integral term of the PI control based on the error signal; determining the control amount of the oxygen output at the oxygen outlet based on the proportional term and the integral term; controlling the total valve opening at the oxygen outlet based on the control amount of the oxygen output to control the oxygen output at the oxygen outlet.

4. The method of claim 1, wherein, The method further comprises: acquiring the current altitude of the environment where the vehicle cabin is located; controlling the oxygen output at the oxygen outlet of the oxygen generating device based on the actual oxygen concentration in the vehicle cabin, the current altitude, and the second target oxygen concentration in the vehicle cabin, so that the actual oxygen concentration in the vehicle cabin meets the second target oxygen concentration.

5. The method of claim 4, wherein, The method comprises: determining an error signal based on the actual oxygen concentration in the vehicle cabin and the second target oxygen concentration; determining the proportional term and the integral term of the PI control based on the error signal; determining the control amount of the oxygen output based on the proportional term and the integral term; gain adjusting the control amount of the oxygen output based on the current altitude to obtain the final control amount of the oxygen output; controlling the total valve opening at the oxygen outlet based on the final control amount of the oxygen output to control the oxygen output at the oxygen outlet.

6. The method according to claim 3 or 5, characterized in that, The method further comprises: limiting the integral term and the control amount of the oxygen output based on the target oxygen flow of the vehicle cabin.

7. The method of claim 1, wherein, The method further comprises: acquiring the actual oxygen concentration at the oxygen outlet of the oxygen generating device; controlling the compressor speed of the oxygen generating device based on the actual oxygen concentration at the oxygen outlet and the first target oxygen concentration, so that the actual oxygen concentration at the oxygen outlet of the oxygen generating device meets the first target oxygen concentration.

8. The method of claim 1, wherein, The method further comprises: determining whether data of each of the oxygen concentration sensors deviates from a threshold value; if yes, adjusting an oxygen output amount at a corresponding diffused oxygen supply port according to a number of seated persons in the vehicle cabin and data of the corresponding oxygen concentration sensor.

9. The method of claim 8, wherein, The adjusting an oxygen output amount at a corresponding diffused oxygen supply port according to a number of seated persons in the vehicle cabin and data of the corresponding oxygen concentration sensor comprises: determining a first coefficient based on the number of seated persons and a first coefficient table; determining a second coefficient based on data of the corresponding oxygen concentration sensor and a second coefficient table; obtaining a control amount of the oxygen output amount at the corresponding diffused oxygen supply port based on a weighted value of the first coefficient and the second coefficient, and adjusting the oxygen output amount at the corresponding diffused oxygen supply port based on the control amount.

10. An in-vehicle oxygen supply control device characterized by comprising: The device comprises: an acquisition module configured to acquire data of a plurality of oxygen concentration sensors in a vehicle cabin; wherein each of the oxygen concentration sensors is arranged at a diffused oxygen supply port at a different position of the vehicle cabin; a determination module configured to determine an actual oxygen concentration in the vehicle cabin based on data of each of the oxygen concentration sensors; a control module configured to, in a case where an actual oxygen concentration at an oxygen output port of an oxygen generating device meets a first target oxygen concentration, control an oxygen output amount at the oxygen output port of the oxygen generating device based on the actual oxygen concentration in the vehicle cabin and a second target oxygen concentration in the vehicle cabin, so that the actual oxygen concentration in the vehicle cabin meets the second target oxygen concentration.

11. A vehicle characterized by comprising: The vehicle-mounted oxygen supply control device according to claim 10. The vehicle-mounted oxygen supply control device according to claim 10.

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