Vehicle-mounted air purifier control method, vehicle-mounted air purifier and automobile

Abstract

The application discloses a kind of vehicle-mounted air purifier control method, vehicle-mounted air purifier and car, method includes: determining the speed gear of fan, according to the speed gear of fan determines the compensation coefficient of each gear;Define speed gradual change time;Record current speed gear as first gear;Switch the speed of fan, and the speed gear after switching is regarded as second gear;According to speed gradual change time, the compensation coefficient of first gear and the compensation coefficient of second gear constructs speed gradual change algorithm;According to speed gradual change algorithm, adjust the current compensation coefficient of fan, so that fan is gradually changed from the compensation coefficient of first gear to the compensation coefficient of second gear in speed gradual change time.The application can realize the smooth gradual change of compensation coefficient, so that fan will not cause air quality numerical value change amplitude too big because of compensation coefficient mutation when switching speed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle-mounted air purification, in particular to a vehicle-mounted air purifier control method, a vehicle-mounted air purifier and a vehicle. BACKGROUND

[0002] In recent years, with the rapid development of economy, the number of people owning vehicles has increased, and most people rely on vehicles for travel, so poor air quality in the vehicle can affect physical health. With the enhancement of people's environmental protection consciousness, there is a higher requirement for the air quality in the vehicle, and conventional ventilation cannot meet people's needs. At present, many vehicles are equipped with vehicle-mounted air purifiers to improve the air quality in the vehicle.

[0003] The existing vehicle-mounted purifier avoids the influence of the speed on the air quality value by using different compensation coefficients to compensate the air quality at different speeds. However, the compensation coefficient of the fan directly jumps when the speed gear is switched, which can cause the air quality value to change too much. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a vehicle-mounted air purifier control method, a vehicle-mounted air purifier and a vehicle, which can avoid the air quality value changing too much when the speed gear is switched.

[0005] The vehicle-mounted air purifier control method according to the first aspect of the present application is used to control the fan of the vehicle-mounted air purifier, and includes the following steps:

[0006] Determine the speed gear of the fan, and determine the compensation coefficient of each gear according to the speed gear of the fan;

[0007] Define a speed gradual change time, which is the time taken for the compensation coefficient of the previous gear to switch to the compensation coefficient of the current gear;

[0008] Record the current speed gear as the first gear;

[0009] Switch the speed of the fan, and take the switched speed gear as the second gear;

[0010] Construct a speed gradual change algorithm according to the speed gradual change time, the compensation coefficient of the first gear and the compensation coefficient of the second gear;

[0011] Adjust the current compensation coefficient of the fan according to the speed gradual change algorithm, so that the fan gradually changes from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time.

[0012] The vehicle-mounted air purifier control method according to the first aspect of the present application has at least the following beneficial effects:

[0013] The embodiment of the present application takes the speed gear before switching as the first gear, takes the speed gear after switching as the second gear, adjusts the current compensation coefficient of the fan according to the speed gradual change algorithm, and makes the fan gradually change from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time, so that the smooth gradual change of the compensation coefficient can be realized, and the fan will not cause the air quality value to change too much due to the sudden change of the compensation coefficient when the speed is switched.

[0014] According to some embodiments of the present application, the speed gears of the fan include a speed gear one, a speed gear two and a speed gear three in the step of determining the compensation coefficient of each gear according to the speed gears of the fan.

[0015] According to some embodiments of the present application, the compensation coefficient of the speed gear one is 3.0, the compensation coefficient of the speed gear two is 2.0, and the compensation coefficient of the speed gear three is 1.6.

[0016] According to some embodiments of the present application, the formula of the speed gradual change algorithm is:

[0017] CF=C1+(C2-C1)*(T / T0)

[0018] wherein CF is the current compensation coefficient, C2 is the compensation coefficient of the second gear, C1 is the compensation coefficient of the first gear, T0 is the speed gradual change time, and T is the time elapsed after the speed of the fan is switched.

[0019] According to some embodiments of the present application, if the speed gear of the fan is switched during the gradual change process, the current compensation coefficient is taken as the compensation coefficient of the first gear, the speed gear after switching is taken as the second gear, the current compensation coefficient of the fan is controlled again according to the speed gradual change algorithm, and the fan gradually changes from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time in the step of controlling the current compensation coefficient of the fan according to the speed gradual change algorithm, so that the fan gradually changes from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time.

[0020] According to some embodiments of the present application, the method further includes a midway shutdown control step: if the fan is closed and then opened during the gradual change process, the compensation coefficient of the current speed gear of the fan is directly adjusted in the step of controlling the current compensation coefficient of the fan according to the speed gradual change algorithm, so that the fan gradually changes from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time.

[0021] According to some embodiments of the present application, the speed gradual change time is set to 30 seconds.

[0022] The vehicle-mounted air purifier according to the second aspect of the embodiment of the present application compensates the air quality by the above method.

[0023] According to the vehicle-mounted air purifier of the second aspect of the embodiment of the present application, at least the following beneficial effects are achieved:

[0024] The embodiment of the present application takes the speed gear before switching as the first gear, takes the speed gear after switching as the second gear, adjusts the current compensation coefficient of the fan according to the speed gradual change algorithm, and makes the fan gradually change from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time, so that the smooth gradual change of the compensation coefficient is realized, and the fan will not cause the air mass value to change too much because of the sudden change of the compensation coefficient when the speed is switched.

[0025] According to the vehicle of the third aspect of the embodiment of the present application, the vehicle is installed with the above-mentioned vehicle-mounted air purifier.

[0026] According to the vehicle of the third aspect of the embodiment of the present application, at least the following beneficial effects are achieved:

[0027] The embodiment of the present application takes the speed gear before switching as the first gear, takes the speed gear after switching as the second gear, adjusts the current compensation coefficient of the fan according to the speed gradual change algorithm, and makes the fan gradually change from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the speed gradual change time, so that the smooth gradual change of the compensation coefficient is realized, and the fan will not cause the air mass value to change too much because of the sudden change of the compensation coefficient when the speed is switched.

[0028] Additional aspects and advantages of the present application will be made apparent from the following description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0030] Figure 1 The flow chart of the control method of the vehicle-mounted air purifier in the embodiment of the present application;

[0031] Figure 2 The compensation coefficient change schematic diagram in the gradual change process in the embodiment of the present application;

[0032] Figure 3 The compensation coefficient change schematic diagram in the gradual change process in the embodiment of the present application;

[0033] Figure 4 The compensation coefficient change schematic diagram in the gradual change process in the embodiment of the present application;

[0034] Figure 5 The comparison schematic diagram of the air mass change in the embodiment of the present application. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only and are not to be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] Referring to Figure 1 As shown in the drawings, a vehicle-mounted air purifier control method for controlling a fan of a vehicle-mounted air purifier comprises the following steps:

[0040] S100, determining the speed gear of the fan, and determining the compensation coefficient of each gear according to the speed gear of the fan;

[0041] Specifically, those skilled in the art can set the speed gear of the fan according to the model and function of the vehicle-mounted air purifier. In the present embodiment, the speed gear of the fan is set to three gears, i.e. speed gear one, speed gear two and speed gear three, i.e. low, medium and high gears. The compensation coefficient of each gear is determined according to the speed gear of the fan. The compensation coefficient of each gear can be obtained through experiments. In actual testing, the value of air quality is stable and small at low speed, and the value of air quality is stable and large at high speed. Therefore, the fan control module needs to be multiplied by a compensation coefficient to make the air quality relatively consistent at different speed gears, so as to avoid the value of air quality jumping. The value of air quality is obtained by a PM2.5 sensor. In the present embodiment, the compensation coefficient of speed gear one is 3.0, the compensation coefficient of speed gear three is 2.0, and the compensation coefficient of speed gear three is 1.6. The compensation coefficient can keep the value of air quality stable at three speed gears.

[0042] S200, define a rotation speed gradient time, the rotation speed gradient time being a time used for switching a compensation coefficient of a previous gear to a compensation coefficient of a current gear;

[0043] Specifically, in the embodiment, the rotation speed gradient time is 30 seconds, that is, after switching the rotation speed gear, the fan gradually changes from the compensation coefficient of the previous gear to the compensation coefficient of the target gear within 30 seconds. Of course, the rotation speed gradient time can also adopt other numerical values. However, too fast rotation speed gradient time will affect the smoothness in the gradual change process, resulting in unstable air quality values. Too long rotation speed gradient time will result in too long adjustment process. It has been verified that 30 seconds can maintain a smooth gradual change process and shorten the adjustment time as much as possible.

[0044] S300, record the current rotation speed gear as a first gear;

[0045] Specifically, the first gear is the rotation speed gear before switching, and the compensation coefficient of the first gear is the compensation coefficient of the fan before switching;

[0046] S400, switch the rotation speed of the fan, and take the switched rotation speed gear as a second gear;

[0047] Specifically, the second gear is the switched rotation speed gear, and the compensation coefficient of the second gear is the target compensation coefficient;

[0048] S500, construct a rotation speed gradient algorithm according to the rotation speed gradient time, the compensation coefficient of the first gear, and the compensation coefficient of the second gear;

[0049] Specifically, in the embodiment, the formula of the rotation speed gradient algorithm is:

[0050] CF=C1+(C2-C1)*(T / T0)

[0051] Wherein CF is the current compensation coefficient, C2 is the compensation coefficient of the second gear, C1 is the compensation coefficient of the first gear, T0 is the rotation speed gradient time, and T is the time elapsed after switching the rotation speed of the fan.

[0052] In the embodiment, the rotation speed gradient time is 30 seconds, so the formula of the rotation speed gradient algorithm is

[0053] CF=C1+(C2-C1)*(T / 30)

[0054] S600, adjust the current compensation coefficient of the fan according to the rotation speed gradient algorithm, so that the fan gradually changes from the compensation coefficient of the first gear to the compensation coefficient of the second gear within the rotation speed gradient time.

[0055] Specifically, refer to Figure 2As shown, when the fan speed switches from the first gear to the second gear, the current compensation coefficient gradually changes from 3.0 to 2.0 within 30 seconds to avoid abrupt changes.

[0056] If the speed is switched again during the gradual change process in step S600, the current compensation coefficient is used as the compensation coefficient of the first speed, and the speed speed after the switch is used as the second speed. The current compensation coefficient of the fan is controlled again according to the speed gradual change algorithm, so that the fan gradually changes from the compensation coefficient of the first speed to the compensation coefficient of the second speed within the speed gradual change time.

[0057] For details, please refer to Figure 3 As shown, the speed is switched from speed level 2 to speed level 1, and after 15 seconds it switches back to speed level 2. At this time, the fan controller uses the compensation coefficient at 15 seconds as the compensation coefficient for the first speed level, and then gradually changes back to the compensation coefficient of 2.0 for speed level 2 within 30 seconds.

[0058] If the fan stops and restarts during the gradual change process in step S600, the compensation coefficient is directly adjusted to the current fan speed level.

[0059] For details, please refer to Figure 4 As shown, for example, when switching from speed level 2 to speed level 1, after 6 seconds of shutdown and then restarting, the machine will be directly controlled with the compensation coefficient of speed level 1 (3.0), and will no longer continue the previous gradual change process.

[0060] refer to Figure 5 The figure shows the air quality change curves when the fan speed is switched using conventional control methods and when the fan speed is switched using the control method of this application. It can be seen from the figure that the vehicle air purifier control method of this application can make the air quality curve change smoother.

[0061] In this embodiment of the invention, the speed gear before switching is taken as the first gear and the speed gear after switching is taken as the second gear. The current compensation coefficient of the fan is adjusted according to the speed gradient algorithm, so that the compensation coefficient of the fan gradually changes from the first gear to the second gear within the speed gradient time. This can achieve a smooth gradient of the compensation coefficient, so that the air quality value will not change too much due to the sudden change of the compensation coefficient when the fan switches speeds.

[0062] The present invention also relates to a vehicle air purifier that compensates for air quality using the methods described in the above embodiments.

[0063] The present invention also relates to a car equipped with the in-vehicle air purifier described in the above embodiments.

[0064] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A control method for a vehicle-mounted air cleaner having a fan therein, characterized by, The method comprises the following steps: determining the speed grade of the fan, and determining the compensation coefficient of each grade according to the speed grade of the fan; defining a speed transition time, which is the time for switching the compensation coefficient of the previous grade to the compensation coefficient of the current grade; recording the current speed grade as the first grade; switching the speed of the fan, and taking the switched speed grade as the second grade; constructing a speed transition algorithm according to the speed transition time, the compensation coefficient of the first grade and the compensation coefficient of the second grade; adjusting the current compensation coefficient of the fan according to the speed transition algorithm, so that the fan gradually transitions from the compensation coefficient of the first grade to the compensation coefficient of the second grade within the speed transition time; the formula of the speed transition algorithm is: CF=C1+(C2-C1)*(T / T0); where CF is the current compensation coefficient, C2 is the compensation coefficient of the second grade, C1 is the compensation coefficient of the first grade, T0 is the speed transition time, and T is the time elapsed after switching the speed of the fan.

2. The in-vehicle air purifier control method according to claim 1, characterized by: In the step of determining the speed grade of the fan and determining the compensation coefficient of each grade according to the speed grade of the fan, the speed grade of the fan includes speed one, speed two and speed three.

3. The in-vehicle air purifier control method according to claim 2, characterized by: The compensation coefficient of the speed one is 3.0, the compensation coefficient of the speed three is 2.0, and the compensation coefficient of the speed three is 1.

6.

4. The in-vehicle air purifier control method according to claim 1, characterized by: In the step of adjusting the current compensation coefficient of the fan according to the speed transition algorithm, so that the fan gradually transitions from the compensation coefficient of the first grade to the compensation coefficient of the second grade within the speed transition time, if the speed grade of the fan is switched during the transition process, the current compensation coefficient is taken as the compensation coefficient of the first grade, the switched speed grade is taken as the second grade, and the current compensation coefficient of the fan is adjusted again according to the speed transition algorithm, so that the fan gradually transitions from the compensation coefficient of the first grade to the compensation coefficient of the second grade within the speed transition time.

5. The in-vehicle air purifier control method according to claim 1, characterized by: The method further comprises a midway shutdown control step: in the step of adjusting the current compensation coefficient of the fan according to the speed transition algorithm, so that the fan gradually transitions from the compensation coefficient of the first grade to the compensation coefficient of the second grade within the speed transition time, if the fan is closed and then opened during the transition process, the compensation coefficient of the current speed grade of the fan is directly adjusted.

6. The in-vehicle air purifier control method according to claim 1, characterized by: The speed transition time is set to 30 seconds.

7. A vehicle-mounted air cleaner characterized by comprising: The vehicle-mounted air purifier compensates for air quality by the method according to any one of claims 1 to 6.

8. An automobile characterized by comprising: The vehicle-mounted air purifier is mounted on the car according to claim 7.

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