阅读说明：本技术 车辆除雾方法、装置、设备及存储介质 (Vehicle defogging method, device, equipment and storage medium ) 是由 陈涛 吴皆学 谭明香 刘晓宇 林泽鸿 欧增开 于 2021-09-08 设计创作，主要内容包括：本发明涉及汽车技术领域,公开一种车辆除雾方法、装置、设备及存储介质。本发明通过判断车辆是否设置有装设在前挡风玻璃上的除雾传感器,在车辆设置有除雾传感器时,根据当前环境温度确定第一阶段出风模式对应的除雾参数信息,然后根据除雾参数信息控制车辆进入第一阶段出风模式,并通过风道传感器实时采集风道温度,在风道温度满足预设风温条件时,控制车辆进入第二阶段出风模式,通过除雾传感器获取相对湿度和饱和湿度,再根据饱和湿度和相对湿度确定风量值,根据风量值和当前环境温度确定第二阶段出风模式对应的工作参数,并根据工作参数控制车辆除雾。本发明在车辆设置有除雾传感器时确定合适的工作参数,控制车辆除雾,从而降低能耗。(The invention relates to the technical field of automobiles, and discloses a vehicle defogging method, device, equipment and storage medium. The invention determines whether a vehicle is provided with a defogging sensor arranged on a front windshield, determines defogging parameter information corresponding to a first-stage air-out mode according to the current environmental temperature when the vehicle is provided with the defogging sensor, then controls the vehicle to enter the first-stage air-out mode according to the defogging parameter information, collects the air duct temperature in real time through the air duct sensor, controls the vehicle to enter a second-stage air-out mode when the air duct temperature meets the preset air temperature condition, acquires the relative humidity and the saturated humidity through the defogging sensor, determines the air quantity value according to the saturated humidity and the relative humidity, determines the working parameter corresponding to the second-stage air-out mode according to the air quantity value and the current environmental temperature, and controls the defogging of the vehicle according to the working parameter. According to the invention, when the vehicle is provided with the defogging sensor, the proper working parameters are determined, and the vehicle is controlled to be defogged, so that the energy consumption is reduced.)

1. A vehicle defogging method comprising:

judging whether the vehicle is provided with a defogging sensor arranged on a front windshield or not;

when the vehicle is provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and acquiring relative humidity and saturated humidity through the defogging sensor;

and determining an air quantity value according to the saturated humidity and the relative humidity, determining working parameters corresponding to the second stage air-out mode according to the air quantity value and the current environment temperature, and controlling the vehicle to demist according to the working parameters.

2. The defogging method for a vehicle as claimed in claim 1, wherein when the temperature of the air duct satisfies a preset air temperature condition, the step of controlling the vehicle to enter a second stage air-out mode and obtaining the relative humidity and the saturated humidity through the defogging sensor specifically comprises:

when the air duct temperature meets a preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, acquiring the glass temperature and the air temperature around the glass through a temperature module in the defogging sensor, and determining the saturation humidity according to the glass temperature and the air temperature around the glass;

and acquiring the relative humidity through a humidity module in the defogging sensor.

3. The defogging method for a vehicle as claimed in claim 1, wherein after the steps of determining an air volume value according to the saturation humidity and the relative humidity, determining an operating parameter corresponding to the second stage air-out mode according to the air volume value and the current ambient temperature, and controlling defogging of the vehicle according to the operating parameter, further comprising:

determining a first operation time corresponding to the second stage air outlet mode according to the current environment temperature and the relative humidity;

and after the first running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

4. The vehicle defogging method according to claim 3, wherein after said first operating time, controlling the vehicle to enter a third stage air-out mode, and after said step of controlling the defogging of the vehicle through said third stage air-out mode, further comprising:

judging whether a fogging risk exists or not according to the relative humidity and the saturated humidity;

when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode;

and judging whether the second-stage air outlet mode needs to be adjusted to the third-stage air outlet mode or not according to the relative humidity and the saturated humidity.

5. A defogging method for a vehicle according to claim 1, wherein said step of determining whether the vehicle is provided with a defogging sensor mounted on a front windshield is further followed by:

when the vehicle is not provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

and when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and controlling the vehicle to demist through the second-stage air outlet mode.

6. The defogging method for a vehicle as claimed in claim 5, wherein when the temperature of said air duct satisfies a predetermined air temperature condition, the step of controlling the vehicle to enter a second stage air-out mode, and after the step of controlling the defogging of the vehicle by said second stage air-out mode, further comprises:

acquiring the current ambient temperature through an ambient temperature sensor, and acquiring the current solar radiation value through a light sensor;

determining a second operation time corresponding to the second stage air-out mode according to the current environment temperature, the current solar radiation value and the current vehicle speed;

and after the second running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

7. The vehicle defogging method according to claim 6, wherein after said second operation time, controlling the vehicle to enter a third stage air-out mode, and after said step of controlling the defogging of the vehicle through said third stage air-out mode, further comprising:

judging whether a fogging risk exists or not according to the current vehicle speed and the current solar radiation value;

when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode;

determining a third operation time corresponding to the second-stage air-out mode according to the current vehicle speed;

and after the third running time, controlling the vehicle to adjust to the third-stage air-out mode.

8. A vehicle defogging device, comprising:

the sensor judging module is used for judging whether the vehicle is provided with a defogging sensor arranged on a front windshield or not;

the parameter determining module is used for determining demisting parameter information corresponding to the first-stage air-out mode according to the current ambient temperature when the vehicle is provided with the demisting sensor;

the temperature acquisition module is used for controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information and acquiring the air duct temperature in real time through an air duct sensor;

the humidity acquisition module is used for controlling the vehicle to enter a second stage air outlet mode when the air duct temperature meets a preset air temperature condition, and acquiring the relative humidity and the saturated humidity through the defogging sensor;

and the vehicle demisting module is used for determining an air quantity value according to the saturation humidity and the relative humidity, determining working parameters corresponding to the second stage air-out mode according to the air quantity value and the current environment temperature, and controlling demisting of the vehicle according to the working parameters.

9. A vehicle defogging device, comprising: a memory, a processor, and a vehicle defogging program stored on the memory and executable on the processor, the vehicle defogging program configured to implement the vehicle defogging method recited in any one of claims 1 to 7.

10. A storage medium having a vehicle defogging program stored thereon, the vehicle defogging program when executed by a processor implementing the vehicle defogging method recited in any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of automobiles, in particular to a vehicle defogging method, device, equipment and storage medium.

Background

With the development of science and technology, the sales volume of new energy automobiles continuously and rapidly increases, and compared with the traditional automobile models, the new energy automobile models lack engine heat sources and need to consume a large amount of energy to realize heating when used in winter, so that the scheme of relatively saving energy is adopted in winter working conditions and is very important for the new energy automobile models.

When the new energy automobile is demisting, some vehicles are arranged with a demisting sensor, some vehicles are not arranged with a demisting sensor, and corresponding measures are provided for each situation. If the vehicle is not provided with a defogging sensor, the risk of front gear fogging cannot be sensed, and the vehicle is ensured not to be fogged by adopting an active defense strategy, the conventional method is to increase the proportion of external circulation of the vehicle, but the proportion of the external circulation is increased once, which inevitably leads to the sharp increase of the energy consumption of the vehicle, for example, a common car needs to increase the power loss of 200W for every 10% increase of the external circulation under the environment of-20 ℃, and needs to increase the power loss of 300W for every 10% increase of the external circulation under the environment of-30 ℃. If the vehicle is equipped with a defogging humidity sensor, a strategy of "passive defense" is adopted, that is, a lower proportion of external circulation (for example, 30%) is set, and after the front gear is detected to have a fogging risk, a one-key defogging strategy (100% external circulation defrosting mode) is activated, which results in two adverse consequences: firstly, the automatic air-conditioning mode of 30% external circulation is switched to the defrosting mode of 100% external circulation full air volume, which inevitably leads to the increase of energy consumption; secondly, the comfort of the passenger compartment is influenced.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a vehicle defogging method, a vehicle defogging device, vehicle defogging equipment and a storage medium, and aims to solve the technical problems of high energy consumption and poor passenger experience in defogging in the prior art.

In order to achieve the above object, the present invention provides a vehicle defogging method including:

judging whether the vehicle is provided with a defogging sensor arranged on a front windshield or not;

when the vehicle is provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and acquiring relative humidity and saturated humidity through the defogging sensor;

and determining an air quantity value according to the saturated humidity and the relative humidity, determining working parameters corresponding to the second stage air-out mode according to the air quantity value and the current environment temperature, and controlling the vehicle to demist according to the working parameters.

Optionally, when the air duct temperature meets a preset air temperature condition, the vehicle is controlled to enter a second-stage air outlet mode, and the step of obtaining the relative humidity and the saturation humidity through the defogging sensor specifically includes:

when the air duct temperature meets a preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, acquiring the glass temperature and the air temperature around the glass through a temperature module in the defogging sensor, and determining the saturation humidity according to the glass temperature and the air temperature around the glass;

and acquiring the relative humidity through a humidity module in the defogging sensor.

Optionally, after the steps of determining an air volume value according to the saturation humidity and the relative humidity, determining a working parameter corresponding to the second stage air-out mode according to the air volume value and the current ambient temperature, and controlling demisting of the vehicle according to the working parameter, the method further includes:

determining a first operation time corresponding to the second stage air outlet mode according to the current environment temperature and the relative humidity;

and after the first running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

Optionally, after the step of controlling the vehicle to enter the third-stage air-out mode after the first operating time passes, the method further includes:

judging whether a fogging risk exists or not according to the relative humidity and the saturated humidity;

when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode;

and judging whether the second-stage air outlet mode needs to be adjusted to the third-stage air outlet mode or not according to the relative humidity and the saturated humidity.

Optionally, after the step of determining whether the vehicle is provided with a defogging sensor mounted on a front windshield, the method further includes:

when the vehicle is not provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

and when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and controlling the vehicle to demist through the second-stage air outlet mode.

Optionally, when the air duct temperature meets a preset air temperature condition, the controlling the vehicle to enter a second-stage air-out mode, and after the step of controlling the vehicle to demist through the second-stage air-out mode, the method further includes:

acquiring the current ambient temperature through an ambient temperature sensor, and acquiring the current solar radiation value through a light sensor;

determining a second operation time corresponding to the second stage air-out mode according to the current environment temperature, the current solar radiation value and the current vehicle speed;

and after the second running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

Optionally, after the step of controlling the vehicle to enter the third-stage air-out mode after the second operating time passes, the method further includes:

judging whether a fogging risk exists or not according to the current vehicle speed and the current solar radiation value;

when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode;

determining a third operation time corresponding to the second-stage air-out mode according to the current vehicle speed;

and after the third running time, controlling the vehicle to adjust to the third-stage air-out mode.

In addition, to achieve the above object, the present invention also provides a defogging device for a vehicle, including:

the sensor judging module is used for judging whether the vehicle is provided with a defogging sensor arranged on a front windshield or not;

the parameter determining module is used for determining demisting parameter information corresponding to the first-stage air-out mode according to the current ambient temperature when the vehicle is provided with the demisting sensor;

the temperature acquisition module is used for controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information and acquiring the air duct temperature in real time through an air duct sensor;

the humidity acquisition module is used for controlling the vehicle to enter a second stage air outlet mode when the air duct temperature meets a preset air temperature condition, and acquiring the relative humidity and the saturated humidity through the defogging sensor;

and the vehicle demisting module is used for determining an air quantity value according to the saturation humidity and the relative humidity, determining working parameters corresponding to the second stage air-out mode according to the air quantity value and the current environment temperature, and controlling demisting of the vehicle according to the working parameters.

Further, to achieve the above object, the present invention also proposes a vehicle defogging device including: a memory, a processor, and a vehicle defogging program stored on the memory and executable on the processor, the vehicle defogging program configured to implement the vehicle defogging method as described above.

In addition, to achieve the above object, the present invention further proposes a storage medium having a vehicle defogging program stored thereon, which when executed by a processor implements the vehicle defogging method as described above.

The invention determines whether a vehicle is provided with a defogging sensor arranged on a front windshield, determines defogging parameter information corresponding to a first-stage air-out mode according to the current environmental temperature when the vehicle is provided with the defogging sensor, then controls the vehicle to enter the first-stage air-out mode according to the defogging parameter information, collects the air duct temperature in real time through the air duct sensor, controls the vehicle to enter a second-stage air-out mode when the air duct temperature meets the preset air temperature condition, acquires the relative humidity and the saturated humidity through the defogging sensor, determines the air quantity value according to the saturated humidity and the relative humidity, determines the working parameter corresponding to the second-stage air-out mode according to the air quantity value and the current environmental temperature, and controls the defogging of the vehicle according to the working parameter. When the vehicle is provided with the defogging sensor, the vehicle firstly enters the first-stage air-out mode, then enters the second-stage air-out mode when the air duct temperature meets the preset air temperature condition, then determines the working parameters corresponding to the second-stage air-out mode, can determine the proper working parameters according to the current environmental factors, and then controls the vehicle to defogg according to the working parameters, so that the proper air volume can be provided for passengers while defogging is performed, the energy consumption is reduced, and the passenger experience is improved.

Drawings

FIG. 1 is a schematic diagram of a vehicle defogging device according to an embodiment of the present invention in a hardware operating environment;

FIG. 2 is a schematic flow chart diagram illustrating a first embodiment of a vehicle defogging method according to the present invention;

FIG. 3 is a schematic flow chart diagram of a second embodiment of a vehicle defogging method according to the present invention;

FIG. 4 is a control block diagram of a vehicle defogging method according to the present invention with a defogging sensor disposed on the vehicle;

FIG. 5 is a schematic flow chart diagram illustrating a third embodiment of a vehicle defogging method according to the present invention;

FIG. 6 is a control block diagram of a defogging sensor in a vehicle according to the method of the present invention;

fig. 7 is a block diagram showing the construction of a first embodiment of the defogging device for a vehicle according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 1 is a schematic diagram of a vehicle defogging device according to a hardware operating environment according to an embodiment of the invention.

As shown in fig. 1, the vehicle defogging device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the configuration shown in FIG. 1 does not constitute a limitation of vehicle defogging devices and may include more or less components than those shown, or some components in combination, or a different arrangement of components.

As shown in fig. 1, a memory 1005, which is one type of storage medium, may include therein an operating system, a network communication module, a user interface module, and a vehicle defogging program.

In the vehicle defogging device illustrated in fig. 1, the network interface 1004 is primarily used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the vehicle defogging device of the invention may be disposed in the vehicle defogging device which calls the vehicle defogging program stored in the memory 1005 through the processor 1001 and executes the vehicle defogging method provided by the embodiment of the invention.

An embodiment of the invention provides a vehicle defogging method, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the vehicle defogging method according to the invention.

In this embodiment, the vehicle defogging method includes the following steps:

step S10: judging whether the vehicle is provided with a defogging sensor arranged on a front windshield or not;

it should be noted that the executing body of the present embodiment may be the vehicle defogging device with the network communication and program running functions, or may be other devices capable of implementing the same or similar functions, and this embodiment is not particularly limited thereto.

It is understood that the defogging sensors in the present embodiment are mounted on the front windshield, and can monitor the related parameter information of the front windshield, and the defogging sensors in the present embodiment may include a temperature sensor and a humidity sensor.

Step S20: when the vehicle is provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

it should be noted that after the vehicle enters the defogging mode, the preset air outlet mode can be automatically opened, and the first air outlet mode is the air outlet mode that the vehicle needs to enter when just being opened.

It can be understood that, at different current ambient temperatures, the defogging parameter information corresponding to the first-stage air-out mode is also different, and the defogging parameter information may include an external circulation parameter and a defogging mode parameter.

In a specific implementation, in a general case, when the current ambient temperature reaches below 0 ℃, the vehicle is triggered to enter the defogging mode, and in this embodiment, when the current ambient temperature is set to be between-10 ℃ and 0 ℃, the defogging parameter information corresponding to the first-stage air-out mode is 20% external circulation and 100% defogging mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the demisting parameter information corresponding to the first-stage air-out mode is 30% external circulation and 100% demisting mode; when the current ambient temperature is lower than minus 20 ℃, the demisting parameter information corresponding to the first-stage air-out mode is 40% external circulation and 100% demisting mode. The defogging parameter information may also be set to other values according to actual situations, which is not limited in this embodiment.

Step S30: controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

it should be understood that the first stage air-out mode can avoid just beginning to blow the temperature and hang down excessively, and cold wind blows the foot, promotes passenger's travelling comfort, adopts the full defrosting mode simultaneously, can effectively avoid the fog.

Understandably, the air duct sensor can collect the air duct temperature, namely the temperature of the air outlet.

Step S40: when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and acquiring relative humidity and saturated humidity through the defogging sensor;

it should be noted that the preset air temperature condition is a preset air duct temperature condition, which may be set to be a temperature acceptable to human body, for example, greater than 30 degrees celsius, and when the air duct temperature is greater than 30 degrees celsius, the vehicle is controlled to enter the second stage air outlet mode.

It should be understood that the second-stage air-out mode is preset in the vehicle, and after the first-stage air-out mode is completed, the vehicle can judge whether to enter the second-stage air-out mode according to the air duct temperature.

Further, in order to determine the saturation humidity, the above step S40 includes: when the air duct temperature meets a preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, acquiring the glass temperature and the air temperature around the glass through a temperature module in the defogging sensor, and determining the saturation humidity according to the glass temperature and the air temperature around the glass; and acquiring the relative humidity through a humidity module in the defogging sensor.

The relative humidity refers to the humidity of the air around the front windshield, and the saturated humidity refers to the humidity at which the vehicle does not mist.

It will be appreciated that the temperature of the front windshield and the temperature of the air surrounding the front windshield can be obtained by the temperature module in the defogging sensors mounted on the front windshield, and the relative humidity of the air surrounding the front windshield can be obtained by the humidity module in the defogging sensors mounted on the front windshield.

In a specific implementation, the air temperature around the glass corresponds to a saturated humidity without fogging at the temperature of the front windshield, that is, there is a corresponding relationship between the saturated humidity and the air temperature around the glass and the temperature of the front windshield, and the corresponding relationship may be set according to an actual situation, which is not limited in this embodiment. For example: after the air temperature around the glass and the temperature of the front windshield are obtained, the non-fogging saturated humidity is searched from the preset corresponding relationship.

Step S50: and determining an air quantity value according to the saturated humidity and the relative humidity, determining working parameters corresponding to the second stage air-out mode according to the air quantity value and the current environment temperature, and controlling the vehicle to demist according to the working parameters.

Specifically, the present embodiment may determine the air volume value through a first preset formula, where the first preset formula is:

M＝30％+10[RH-(SH-2％)]

in the formula, M is the air volume value, RH is the relative humidity, and SH is the saturated humidity.

It can be understood that the working parameters of the second stage air-out mode corresponding to different current ambient temperatures are also different, and in the embodiment, when the current ambient temperature is between-10 ℃ and 0 ℃, the working parameters corresponding to the second stage air-out mode are 20% of external circulation, (1-M) foot-blowing mode, and M demisting mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the working parameters corresponding to the air-out mode at the second stage are 30% of external circulation, (1-M) a foot-blowing mode and an M demisting mode; when the current environment temperature is lower than-20 ℃, the working parameters corresponding to the second stage air-out mode are 40% external circulation, (1-M) foot blowing mode and M demisting mode. The above operating parameters may also be set to other values according to actual conditions, but the sum of the foot blowing mode and the defogging mode needs to be set to 100%, and the embodiment is not particularly limited to other values.

In a specific implementation, when the difference between the relative humidity RH and the saturated humidity SH is larger, the larger the air volume value M is, the larger the proportion of the foot blowing mode distribution is, which means that when the difference between the relative humidity RH and the saturated humidity SH is larger, the less the fog is generated, so the proportion of the fog removal mode distribution is smaller.

Whether the vehicle is provided with the defogging sensor arranged on the front windshield or not is judged, when the vehicle is provided with the defogging sensor, defogging parameter information corresponding to the first-stage air-out mode is determined according to the current ambient temperature, then the vehicle is controlled to enter the first-stage air-out mode according to the defogging parameter information, the air channel temperature is collected in real time through the air channel sensor, when the air channel temperature meets the preset air temperature condition, the vehicle is controlled to enter the second-stage air-out mode, the relative humidity and the saturation humidity are obtained through the defogging sensor, the air volume value is determined according to the saturation humidity and the relative humidity, the working parameter corresponding to the second-stage air-out mode is determined according to the air volume value and the current ambient temperature, and defogging of the vehicle is controlled according to the working parameter. This embodiment is when the vehicle is provided with the defogging sensor, advance into first stage air-out mode, then when wind channel temperature satisfies preset wind temperature condition, get into second stage air-out mode, confirm the working parameter that second stage air-out mode corresponds again, can confirm suitable working parameter according to current environmental factor, then control the vehicle defogging according to working parameter, can provide suitable amount of wind to the passenger in the defogging to reduce the energy consumption, improve passenger experience.

Referring to fig. 3, fig. 3 is a schematic flow chart of a vehicle defogging method according to a second embodiment of the invention.

Based on the first embodiment, in this embodiment, after the step S50, the method further includes:

step S60: determining a first operation time corresponding to the second stage air outlet mode according to the current environment temperature and the relative humidity;

specifically, the first operating time corresponding to the second-stage air-out mode may be determined by a second preset formula in this embodiment, where the second preset formula is:

in the formula, X is the first operation time, T is the current ambient temperature, and RH is the relative humidity.

Step S70: and after the first running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

It should be understood that, after the internal crystal oscillator of the automatic air conditioner controller determines that the second stage air-out mode has completed the first operation time, the air conditioner controller sends a mode switching command to the mode motor, so that the vehicle enters the third stage air-out mode from the second stage air-out mode.

It can be understood that the working modes of the third-stage air-out mode corresponding to different current ambient temperatures are different, and in this embodiment, when the current ambient temperature is between-10 ℃ and 0 ℃, the defogging parameter information corresponding to the third-stage air-out mode is 30% of external circulation and foot-blowing mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the defogging parameter information corresponding to the air-out mode in the third stage is an external circulation of 40%, and a foot-blowing mode is adopted; when the current environment temperature is lower than minus 20 ℃, the defogging parameter information corresponding to the first-stage air-out mode is 60% external circulation and a foot blowing mode. The above working mode may also be set as other parameters according to actual situations, and this embodiment does not specifically limit this.

In a specific implementation, when the air-out mode of the third stage is entered, it is described that the vehicle has entered a steady state, which means that the interior of the vehicle is not fogged, and the temperature in the vehicle reaches the temperature set by the user, so the working mode only needs to be set to the external circulation foot-blowing mode, and the defogging mode is not needed to defogg the vehicle.

Specifically, referring to table 1, table 1 shows the working modes corresponding to the first stage air-out mode, the second stage air-out mode and the third stage air-out mode when the vehicle is provided with the defogging sensor.

Table 1:

it should be noted that, the parameters in the working modes corresponding to the air outlet modes in table 1 may be set according to actual conditions, and the corresponding range of the current environment temperature may also be set by itself, which is not limited in this embodiment.

Further, the step S70 is followed by: judging whether a fogging risk exists or not according to the relative humidity and the saturated humidity; when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode; and judging whether the second-stage air outlet mode needs to be adjusted to the third-stage air outlet mode or not according to the relative humidity and the saturated humidity.

It should be understood that, the determining manner for determining whether the risk of fogging exists in this embodiment may be that when the relative humidity RH is greater than or equal to the saturation humidity SH-2%, the risk of fogging exists, and the specific determining condition may also be set according to the actual situation, which is not limited in this embodiment.

Understandably, when there is the risk of fogging, the foot-blowing mode needs to be switched to the foot-blowing demisting mode, that is, the second-stage air-out mode, then the vehicle is demisted through the demisting mode, and when there is no risk of fogging, the vehicle maintains the third-stage air-out mode.

In specific implementation, when the relative humidity RH is less than the saturation humidity SH-5%, it is determined that the second-stage air-out mode needs to be adjusted to the third-stage air-out mode, and the specific determination condition may also be set according to an actual situation, which is not specifically limited in this embodiment.

This embodiment judges whether the vehicle has the risk of fogging when the vehicle is in third stage air-out mode, when having the risk of fogging, gets into second stage air-out mode, can get into the stable state back at the vehicle, judges whether the vehicle has the risk of fogging in real time to carry out the defogging to the vehicle through second stage air-out mode, after the defogging is accomplished, automatic adjustment is third stage air-out mode, thereby reduces the energy consumption, improves passenger experience.

Further, referring to fig. 4, fig. 4 is a control block diagram of the defogging method for a vehicle according to the present invention, wherein the defogging sensor is disposed on the vehicle.

As shown in fig. 4, when the vehicle is provided with the defogging sensor, the humidity information collected by the vehicle sensor, the current ambient temperature collected by the ambient temperature sensor, and the air duct temperature collected by the air temperature sensor jointly control the automatic air-conditioning controller, and then the automatic air-conditioning controller sends a mode switching instruction to the mode motor, and switches from the foot blowing mode to the defogging mode, or switches from the defogging mode to the foot blowing mode.

According to the embodiment, the first operation time corresponding to the second-stage air-out mode is determined according to the current environment temperature and the relative humidity, after the first operation time, the vehicle is controlled to enter the third-stage air-out mode, and the vehicle is controlled to be demisted through the third-stage air-out mode. This embodiment is through increasing third stage air-out mode after second stage air-out mode, after the second stage reaches corresponding operating time, automatic switch to third stage air-out mode, because third stage air-out mode does not have the defogging mode, only blows the foot mode to reduce the energy consumption, improve passenger's experience.

Referring to fig. 5, fig. 5 is a schematic flow chart illustrating a defogging method for a vehicle according to a third embodiment of the invention.

Based on the first embodiment, in this embodiment, after the step S10, the method further includes:

step S20': when the vehicle is not provided with the defogging sensor, determining defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature;

it can be understood that, at different current ambient temperatures, the defogging parameter information corresponding to the first-stage air-out mode is also different, and the defogging parameter information may include an external circulation parameter and a defogging mode parameter.

In a specific implementation, in a general case, when the current ambient temperature reaches below 0 ℃, the vehicle is triggered to enter the defogging mode, and in this embodiment, when the current ambient temperature is set to be between-10 ℃ and 0 ℃, the defogging parameter information corresponding to the first-stage air-out mode is 20% external circulation and 100% defogging mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the demisting parameter information corresponding to the first-stage air-out mode is 30% external circulation and 100% demisting mode; when the current ambient temperature is lower than minus 20 ℃, the demisting parameter information corresponding to the first-stage air-out mode is 40% external circulation and 100% demisting mode. The defogging parameter information may also be set to other values according to actual situations, which is not limited in this embodiment.

Step S30': controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor;

step S40': and when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and controlling the vehicle to demist through the second-stage air outlet mode.

It can be understood that the working parameters of the second stage air-out mode corresponding to different current ambient temperatures are also different, and in the embodiment, when the current ambient temperature is between-10 ℃ and 0 ℃, the working parameters corresponding to the second stage air-out mode are 20% of external circulation, 50% of foot-blowing mode and 50% of demisting mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the working parameters corresponding to the air-out mode at the second stage are 30% of external circulation, 50% of foot-blowing mode and 50% of demisting mode; when the current environment temperature is lower than minus 20 ℃, the working parameters corresponding to the air outlet mode at the second stage are 40% of external circulation, 50% of foot blowing mode and 50% of demisting mode. The above operating parameters may also be set to other values depending on the actual situation, but the sum of the foot blowing mode plus the defogging mode needs to be set to 100%, for example: the 30% foot-blowing mode plus the 70% defogging mode, and other values are not specifically limited in this embodiment.

When the vehicle is not provided with the defogging sensor, the defogging parameter information corresponding to the first-stage air-out mode is determined according to the current environment temperature, then the vehicle is controlled to enter the first-stage air-out mode according to the defogging parameter information, the air duct temperature is collected in real time through the air duct sensor, when the air duct temperature meets the preset air temperature condition, the vehicle is controlled to enter the second-stage air-out mode, and the vehicle is controlled to be defogged through the second-stage air-out mode. This embodiment gets into first stage air-out mode earlier when the vehicle does not set up the defogging sensor, then when wind channel temperature satisfied the predetermined wind temperature condition, gets into second stage air-out mode, then through second stage air-out mode control vehicle defogging, can be when not setting up the defogging sensor, confirm the working parameter that second stage air-out mode corresponds according to actual conditions, provide suitable amount of wind to the passenger when can the defogging to reduce the energy consumption, improve passenger experience.

Further, after the step S40', the method further includes:

step S50': acquiring the current ambient temperature through an ambient temperature sensor, and acquiring the current solar radiation value through a light sensor;

it should be noted that the current solar radiation value, i.e. the current solar radiation intensity, may be obtained by the light sensor.

Step S60': determining a second operation time corresponding to the second stage air-out mode according to the current environment temperature, the current solar radiation value and the current vehicle speed;

specifically, the second operation time corresponding to the second-stage air-out mode may be determined by a third preset formula in this embodiment, where the third preset formula is:

in the formula, X' is the second operation time, T is the current environment temperature, V is the current vehicle speed, R is the current solar radiation value, and a and b are coefficients.

It should be noted that a is greater than 1, b is greater than 1, and the specific value needs calibration confirmation.

Step S70': and after the second running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

It should be understood that, after the second-stage air-out mode has been completed by the internal crystal oscillator timing of the automatic air-conditioning controller, the air-conditioning controller sends a mode switching instruction to the mode motor, so that the vehicle enters the third-stage air-out mode from the second-stage air-out mode.

It can be understood that the working modes of the third-stage air-out mode corresponding to different current ambient temperatures are different, and in this embodiment, when the current ambient temperature is between-10 ℃ and 0 ℃, the defogging parameter information corresponding to the third-stage air-out mode is 30% of external circulation and foot-blowing mode; when the current environment temperature is between minus 20 ℃ and minus 10 ℃, the defogging parameter information corresponding to the air-out mode in the third stage is an external circulation of 40%, and a foot-blowing mode is adopted; when the current environment temperature is lower than minus 20 ℃, the defogging parameter information corresponding to the first-stage air-out mode is 60% external circulation and a foot blowing mode. The above working mode may also be set as other parameters according to actual situations, and this embodiment does not specifically limit this.

Specifically, referring to table 2, table 2 shows the working modes corresponding to the first stage air-out mode, the second stage air-out mode and the third stage air-out mode when the vehicle is not provided with the defogging sensor.

Table 2:

it should be noted that, the parameters in the working modes corresponding to the air outlet modes in table 2 may be set according to actual conditions, and the corresponding range of the current environment temperature may also be set by itself, which is not limited in this embodiment.

Further, the step S70' is followed by: judging whether a fogging risk exists or not according to the current vehicle speed and the current solar radiation value; when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode; determining a third operation time corresponding to the second-stage air-out mode according to the current vehicle speed; and after the third running time, controlling the vehicle to adjust to the third-stage air-out mode.

It should be understood that, in the present embodiment, the determination manner for determining whether the fog risk exists may be that the current vehicle speed V is greater than or equal to 60km/h within a period of time, and the current solar radiation value R is less than 100, and it is determined that the fog risk exists, the period of time may be more than 10 seconds, or more than 15 seconds, which is not specifically limited in the present embodiment, and the specific determination condition may also be set according to an actual situation, which is not specifically limited in the present embodiment.

Specifically, the third operating time corresponding to the second-stage air-out mode may be determined by a fourth preset formula in this embodiment, where the fourth preset formula is:

where Y is the third operating time, V is the current vehicle speed, and a is a coefficient.

It should be understood that when the current solar radiation value R is less than 100, the solar radiation compensation glass temperature is indicated, and at this time, the air outlet mode does not need to be switched, and the vehicle maintains the third stage air outlet mode.

In the concrete implementation, when entering a high speed from a city, the speed is suddenly increased, the temperature of the front windshield is rapidly reduced, and the front windshield is caused to fog immediately, so the fog needs to be avoided by switching the air outlet mode.

This embodiment judges whether the vehicle has the risk of fogging when the vehicle is in third stage air-out mode, when having the risk of fogging, gets into second stage air-out mode, can get into the stable state back at the vehicle, judges whether the vehicle has the risk of fogging in real time to carry out the defogging to the vehicle through blowing foot defogging mode, after the defogging is accomplished, automatic adjustment is third stage air-out mode, thereby reduces the energy consumption, improves passenger experience.

Further, referring to fig. 6, fig. 6 is a control block diagram of the defogging method for a vehicle according to the present invention, wherein the defogging sensor is not disposed on the vehicle.

As shown in fig. 6, when the vehicle is not provided with the defogging sensor, the current ambient temperature collected by the ambient temperature sensor, the current solar radiation value collected by the light sensor, the current vehicle speed collected by the vehicle speed sensor and the air duct temperature collected by the air temperature sensor control the automatic air conditioner controller together, and then the automatic air conditioner controller sends a mode switching instruction to the mode motor, and switches from the foot blowing mode to the defogging mode or from the defogging mode to the foot blowing mode.

The present embodiment obtains the current ambient temperature through the ambient temperature sensor, and obtains current solar radiation value through the optical line sensor, then determines the second operation time that the second stage air-out mode corresponds according to current ambient temperature, current solar radiation value and current speed of a motor vehicle, after second operation time, controls the vehicle and gets into the third stage air-out mode, through the defogging of third stage air-out mode control vehicle. This embodiment is through increasing third stage air-out mode after second stage air-out mode, after the second stage reaches corresponding operating time, automatic switch to third stage air-out mode, because third stage air-out mode does not have the defogging mode, only blows the foot mode to reduce the energy consumption, improve passenger's experience.

Furthermore, an embodiment of the present invention further provides a storage medium, where the storage medium stores a vehicle defogging program, and the vehicle defogging program is executed by a processor to implement the vehicle defogging method as described above.

Referring to fig. 7, fig. 7 is a block diagram illustrating a first embodiment of a defogging device for a vehicle according to the present invention.

As shown in fig. 7, a defogging device for a vehicle according to an embodiment of the present invention includes:

a sensor judgment module 701, configured to judge whether a vehicle is provided with a defogging sensor installed on a front windshield;

a parameter determining module 702, configured to determine defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature when the vehicle is provided with the defogging sensor;

the temperature acquisition module 703 is used for controlling the vehicle to enter a first-stage air outlet mode according to the defogging parameter information and acquiring the air duct temperature in real time through an air duct sensor;

the humidity obtaining module 704 is configured to control the vehicle to enter a second-stage air outlet mode when the air duct temperature meets a preset air temperature condition, and obtain the relative humidity and the saturation humidity through the defogging sensor;

and the vehicle defogging module 705 is configured to determine an air volume value according to the saturation humidity and the relative humidity, determine a working parameter corresponding to the second stage air-out mode according to the air volume value and the current ambient temperature, and control defogging of the vehicle according to the working parameter.

Whether the vehicle is provided with the defogging sensor arranged on the front windshield or not is judged, when the vehicle is provided with the defogging sensor, defogging parameter information corresponding to the first-stage air-out mode is determined according to the current ambient temperature, then the vehicle is controlled to enter the first-stage air-out mode according to the defogging parameter information, the air channel temperature is collected in real time through the air channel sensor, when the air channel temperature meets the preset air temperature condition, the vehicle is controlled to enter the second-stage air-out mode, the relative humidity and the saturation humidity are obtained through the defogging sensor, the air volume value is determined according to the saturation humidity and the relative humidity, the working parameter corresponding to the second-stage air-out mode is determined according to the air volume value and the current ambient temperature, and defogging of the vehicle is controlled according to the working parameter. This embodiment is when the vehicle is provided with the defogging sensor, advance into first stage air-out mode, then when wind channel temperature satisfies preset wind temperature condition, get into second stage air-out mode, confirm the working parameter that second stage air-out mode corresponds again, can confirm suitable working parameter according to current environmental factor, then control the vehicle defogging according to working parameter, can provide suitable amount of wind to the passenger in the defogging to reduce the energy consumption, improve passenger experience.

A second embodiment of the vehicle defogging device of the present invention is provided based on the first embodiment of the vehicle defogging device of the present invention.

In this embodiment, the humidity obtaining module 704 is further configured to, when the air duct temperature meets a preset air temperature condition, control the vehicle to enter a second-stage air outlet mode, obtain the glass temperature and the air temperature around the glass through a temperature module in the defogging sensor, and determine the saturation humidity according to the glass temperature and the air temperature around the glass; and acquiring the relative humidity through a humidity module in the defogging sensor.

Further, the vehicle defogging device further includes a first vehicle defogging module 707, where the first vehicle defogging module 707 is configured to determine a first operation time corresponding to the second stage air outlet mode according to the current ambient temperature and the relative humidity; and after the first running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

Further, the vehicle defogging device further comprises a mode adjusting module 707, wherein the mode adjusting module 707 is configured to determine whether a fogging risk exists according to the relative humidity and the saturated humidity; when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode; and judging whether the second-stage air outlet mode needs to be adjusted to the third-stage air outlet mode or not according to the relative humidity and the saturated humidity.

Further, the vehicle defogging device further includes a second vehicle defogging module 708, where the second vehicle defogging module 708 is configured to determine defogging parameter information corresponding to the first-stage air-out mode according to the current ambient temperature when the vehicle is not provided with the defogging sensor; controlling the vehicle to enter a first-stage air outlet mode according to the demisting parameter information, and acquiring air channel temperature in real time through an air channel sensor; and when the air duct temperature meets the preset air temperature condition, controlling the vehicle to enter a second-stage air outlet mode, and controlling the vehicle to demist through the second-stage air outlet mode.

Further, the vehicle defogging device further includes a third vehicle defogging module 709, where the third vehicle defogging module 709 is configured to obtain a current ambient temperature through the ambient temperature sensor and obtain a current solar radiation value through the light sensor; determining a second operation time corresponding to the second stage air-out mode according to the current environment temperature, the current solar radiation value and the current vehicle speed; and after the second running time, controlling the vehicle to enter a third-stage air-out mode, and controlling the vehicle to demist through the third-stage air-out mode.

Further, the vehicle defogging device further comprises a mode readjusting module 710, wherein the mode readjusting module 710 is configured to determine whether a fogging risk exists according to the current vehicle speed and the current solar radiation value; when the fog risk exists, the third stage air outlet mode is adjusted to the second stage air outlet mode; determining a third operation time corresponding to the second-stage air-out mode according to the current vehicle speed; and after the third running time, controlling the vehicle to adjust to the third-stage air-out mode.

Other embodiments or specific implementation manners of the vehicle defogging device of the invention can refer to the above method embodiments, and are not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., a rom/ram, a magnetic disk, an optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.