CN111775889A

CN111775889A - Automobile defogging and defrosting system, automobile and automobile defogging method

Info

Publication number: CN111775889A
Application number: CN202010574835.3A
Authority: CN
Inventors: 刘州; 梁佳佳; 刘继伟; 龙海峰; 席忠民; 许俊海; 何凯欣; 陈家培; 牛魁
Original assignee: Guangzhou Automobile New Energy Automobile Co Ltd
Current assignee: GAC Aion New Energy Automobile Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-10-16
Anticipated expiration: 2040-06-22
Also published as: CN111775889B

Abstract

The invention provides an automobile defogging and defrosting system, an automobile and an automobile defogging method. Automobile defogging defrost system and car include: a windshield; a heating device disposed in the front windshield; an air-conditioning heating system; and the control module is used for controlling the heating device to heat the windshield and controlling the air-conditioning heating system to selectively perform inner circulation and outer circulation. When the heating device just starts to heat the front windshield, the temperature of the front windshield is low, low-temperature dry air outside the automobile can be introduced through external circulation, the humidity on the inner side of the front windshield is reduced, and therefore the front windshield is not easy to fog. After the heating device is heated for a period of time, the temperature of the front windshield is increased, fog is not easy to form, at the moment, the external circulation can be closed, and only the internal circulation is carried out, so that the heat loss and the energy consumption can be reduced, and the winter endurance mileage of the automobile is improved.

Description

Automobile defogging and defrosting system, automobile and automobile defogging method

Technical Field

The invention relates to the technical field of new energy automobiles, in particular to an automobile defogging and defrosting system, an automobile and an automobile defogging method.

Background

A large amount of heat energy needs to be consumed in the defrosting and demisting processes in winter by the conventional vehicle-mounted air conditioner, so that the technical requirement for energy conservation of the new energy electric vehicle cannot be met. In winter, in order to prevent the front windshield from fogging, the automobile usually needs to open an external circulation to reduce the humidity in the automobile during driving, which undoubtedly increases the power consumption of the air conditioner.

In winter, the frosting of the front windshield of the automobile is caused by the air containing water vapor, when the (absolute) humidity H of the air is kept unchanged, and the relative humidity of the air is reduced along with the reduction of the (dry-bulb) temperature t

Also decrease when

(saturation is achieved), and when the temperature is lower than the freezing point, the water vapor is condensed to form ice crystals (frost) outside the vehicle window.

In winter, the fog is formed on the front windshield of the automobile because the water vapor pressure of the wet air in the passenger compartment reaches the saturated water vapor pressure at the surface temperature of the glass, and the water vapor condenses on the glass into small water drops. Front windshield fogging depends primarily on the humidity (i.e., water vapor pressure) of the humid air in the vehicle and the temperature inside the glass. The lower the temperature, the lower the saturated vapor pressure; the higher the temperature, the higher the saturated water vapor pressure.

The defrosting and demisting device aims at the problem of defrosting and demisting of the new energy automobile in winter, the electric energy consumption is large during demisting of the traditional new energy automobile, and the mileage of the new energy automobile in winter can be reduced undoubtedly.

Disclosure of Invention

Based on this, it is necessary to provide an energy-saving automobile defogging and defrosting system, an automobile and an automobile defogging method aiming at the problem of large power consumption in a defrosting and defogging mode of a traditional new energy automobile.

The embodiment of the application provides a car defogging defrost system, include:

the heating device is arranged in a front windshield on the automobile;

an air-conditioning heating system; and

and the control module is used for controlling the heating device to heat the front windshield and controlling the air-conditioning heating system to selectively perform inner circulation and outer circulation.

According to the automobile defogging and defrosting system, the air-conditioning heating system can selectively perform the inner circulation and the outer circulation, so that when defogging is performed on the front windshield, the heating device can be controlled by the control module to heat the front windshield, and meanwhile, the air-conditioning heating system is controlled to perform the inner circulation and the outer circulation simultaneously. When the heating device just starts to heat the front windshield, the temperature of the front windshield is low, low-temperature dry air outside the automobile can be introduced through external circulation, the humidity on the inner side of the front windshield is reduced, and therefore the front windshield is not easy to fog. After the heating device is heated for a period of time, the temperature of the front windshield is increased, fog is not easy to form, at the moment, the external circulation can be closed, and only the internal circulation is carried out, so that the heat loss and the energy consumption can be reduced, and the winter endurance mileage of the automobile is improved.

In one embodiment, the heating device is disposed within an interlayer of the front windshield.

In an embodiment, the heating device comprises a resistance wire, which is arranged in the interlayer of the front windshield.

In one embodiment, the air-conditioning heating system includes:

an inlet chamber having an adjustable size internal gas inlet and an external gas inlet;

an evaporator for cooling the gas from the inlet chamber;

the warm air core is used for heating the air from the air inlet chamber;

and the air outlet distribution chamber is provided with a defogging and defrosting air outlet, and air cooled by the evaporator and/or heated by the warm air core body flows out of the defogging and defrosting air outlet after entering the air outlet distribution chamber, and the defogging and defrosting air outlet faces the front windshield.

In one embodiment, the automobile defogging and defrosting system has a defogging mode, wherein the defogging mode comprises a first defogging mode, in the first defogging mode, the heating device heats the front windshield, and the air-conditioning heating system simultaneously performs inner circulation and outer circulation, wherein the air inflow of the internal air inlet is larger than that of the external air inlet.

In one embodiment, the defogging modes further include a second defogging mode, in which the heating device heats the front windshield and the air-conditioning heating system only performs internal circulation; the control module is used for controlling the automobile defogging and defrosting system to switch between the first defogging mode and the second defogging mode.

In one embodiment, the automobile defogging and defrosting system has a defrosting mode, in the defrosting mode, the heating device heats the front windshield, and the air-conditioning heating system only carries out internal circulation; the control module is used for controlling the automobile defogging and defrosting system to switch between the defogging mode and the defrosting mode.

In one embodiment, the demisting mode further comprises a third demisting mode, in which the heating device is turned off and the air-conditioning heating system performs only internal circulation; the control module is used for controlling the automobile defogging and defrosting system to switch between the third defogging mode and the first defogging mode or the second defogging mode or the defrosting mode.

In an embodiment, the defogging and defrosting air outlet includes a front windshield air outlet and a front windshield air outlet, wherein the size of the front windshield air outlet is adjustable, and when the third defogging mode is switched to the first defogging mode, the second defogging mode or the defrosting mode, a ratio of an air output of the front windshield air outlet to an air output of the front windshield air outlet is increased.

In one embodiment, the heating device has a plurality of power steps, each step having a different power level.

In one embodiment, the system for defogging and defrosting of an automobile further comprises:

the first temperature sensor is arranged on the front windshield and used for measuring the temperature data of the front windshield and sending the temperature data of the front windshield to the control module, and the control module is used for controlling the working states of the heating device and the air-conditioning heating system according to the temperature data of the front windshield; and/or the presence of a gas in the gas,

the second temperature sensor is arranged in the automobile and used for measuring temperature data in the automobile and sending the temperature data in the automobile to the control module, and the control module is used for controlling the working states of the heating device and the air-conditioning heating system according to the temperature data in the automobile; and/or the presence of a gas in the gas,

the third temperature sensor is arranged outside the automobile and used for measuring temperature data outside the automobile and sending the temperature data outside the automobile to the control module, and the control module is used for controlling the working states of the heating device and the air-conditioning heating system according to the temperature data outside the automobile; and/or the presence of a gas in the gas,

the humidity sensor is arranged inside the automobile and used for measuring humidity data inside the automobile and sending the humidity data inside the automobile to the control module, and the control module is used for controlling the heating device and the working state of the air-conditioning heating system according to the humidity data inside the automobile.

Another embodiment of this application still provides an automobile, including body and above-mentioned any car defogging defrost system, car defogging defrost system install in the body.

The present application further provides a defogging method for an automobile, based on any one of the above-mentioned defogging and defrosting systems for an automobile, including:

the control module controls the heating device to heat the front windshield and controls the air-conditioning heating system to simultaneously perform external circulation and internal circulation;

when the temperature data of the windshield measured by the first temperature sensor rises to a first preset temperature, the control module controls the air-conditioning heating system to close the external circulation.

In one embodiment, the automobile defogging and defrosting system has a first defogging mode, in the first defogging mode, the heating device heats the front windshield, and the air-conditioning heating system simultaneously performs inner circulation and outer circulation, wherein the air inflow of the internal air inlet is larger than that of the external air inlet;

the control module controls the heating device to heat the front windshield and controls the air-conditioning heating system to simultaneously perform external circulation and internal circulation, and the steps are as follows: the control module controls the automobile defogging and defrosting system to enter the first defogging mode.

In one embodiment, the automobile defogging and defrosting system has a second defogging mode, in the second defogging mode, the heating device heats the front windshield, and the air-conditioning heating system only performs internal circulation;

the automobile defogging and defrosting system is provided with a humidity sensor, and the humidity sensor is arranged in the automobile and used for measuring humidity data in the automobile and sending the humidity data in the automobile to the control module;

the automobile defogging method further comprises the following steps: when the humidity data in the automobile measured by the humidity sensor is reduced to a first preset humidity, the control module controls the air-conditioning heating system to close the external circulation and enters the second demisting mode.

In one embodiment, when the humidity data of the interior of the vehicle measured by the humidity sensor falls to a first preset humidity, the control module controls the air-conditioning heating system to close the external circulation to enter the second defogging mode,

when the humidity data in the automobile measured by the humidity sensor rises to a second preset humidity, the control module controls the air-conditioning heating system to start the external circulation to enter the first demisting mode.

In one embodiment, the automobile defogging and defrosting system has a third defogging mode, in the third defogging mode, the heating device is closed, and the air-conditioning heating system only performs internal circulation; the defogging and defrosting air outlet comprises a front windshield air outlet and a front side windshield air outlet, and the sizes of the front windshield air outlet and the front side windshield air outlet can be adjusted;

the automobile defogging method further comprises the following steps: when the automobile defogging and defrosting system is switched from the third defogging mode to the first defogging mode or the second defogging mode, the control module controls the air-conditioning heating system, so that the ratio of the air output of the front side windshield air outlet to the air output of the front windshield air outlet is increased.

Drawings

FIG. 1 is a block diagram of an exemplary embodiment of a defogging and defrosting system for an automobile;

FIG. 2 is a schematic view of the front windshield and the front side windshield of the defogging and defrosting system of the automobile shown in FIG. 1;

fig. 3 is a schematic structural view of the air-conditioning heating system in fig. 1;

FIG. 4 is a flowchart illustrating a defogging method for a vehicle according to an embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 in conjunction with fig. 2 and 3, an embodiment of the present application provides a defogging and defrosting system 100 for an automobile. The defogging and defrosting system 100 for an automobile comprises: a windshield, a heating device 120, an air conditioning and heating system 130, and a control module 140.

In the present embodiment, the windshield includes a front windshield 110 and a front windshield 150. The heating device 120 is provided in the front windshield 110, and heats the front windshield 110.

Specifically, the heating device 120 includes a resistance wire. The front windshield 110 is generally a double-glazing. The resistance wire is provided in the interlayer of the front windshield 110. The resistance wire is very small, so that the resistance wire is convenient to place in the interlayer of the front windshield 110, is simple and convenient, and is not easy to influence the visual field of an automobile driver.

In other embodiments, the resistance wire may also be pre-embedded into the glass.

Referring to fig. 3, the air-conditioning heating system 130 includes an air inlet chamber 101, an evaporator 132, a warm air core 131, and an air outlet distribution chamber 102.

The inlet chamber 101 has an adjustable size internal gas inlet 101a and external gas inlet 101 b. The evaporator 132 is used to cool the gas from the inlet chamber 101. The heater core 131 serves to heat the gas from the intake chamber 101. The outlet air distribution chamber 102 has a defogging and defrosting outlet 102a, a blowing face outlet 102b, and a blowing foot outlet 102c, and the air cooled by the evaporator 132 and/or heated by the hot air core 131 enters the outlet air distribution chamber 102 and then flows out of one or more of the defogging and defrosting outlet 102a, the blowing face outlet 102b, and the blowing foot outlet 102 c. The defogging and defrosting air outlet 102a faces the front windshield 110.

Specifically, the air-conditioning heating system 130 may perform an internal circulation and an external circulation. During internal circulation, air inside the automobile enters the air inlet chamber 101 from the internal air inlet 101a, is cooled by the evaporator 132 and/or heated by the warm air core 131, enters the outlet air distribution chamber 102, and then flows out to the front windshield 110 through the defogging and defrosting outlets 102 a. During the external circulation, the air outside the automobile enters the air inlet chamber 101 from the external air inlet 101b, is cooled by the evaporator 132 and/or heated by the warm air core 131, enters the outlet air distribution chamber 102, and then flows out to the front windshield 110 through the defogging and defrosting outlets 102 a. In the present embodiment, the air intake method of the air-conditioning heating system 130 is not limited to the general air-conditioning and the double-flow air-conditioning. The heating method of the air-conditioning heating system 130 is not limited to the general air-conditioner and the heat pump air-conditioner.

In one embodiment, the hvac system 130 further includes a fan 133 and a filter element 134. The fan 133 is used to deliver air so that the air enters the air inlet chamber 101 from the internal air inlet 101a and/or the external air inlet 101b, and after impurities are filtered by the filter element 134, enters the evaporator 132 and/or the heater core 131, and then flows out of the defogging and defrosting air outlet 102a, the blowing surface air outlet 102b, and the foot blowing air outlet 102 c.

The control module 140 is used for controlling the heating device 120 to heat the front windshield 110 and controlling the air-conditioning and heating system 130 to selectively perform an inner circulation and an outer circulation.

Specifically, the control module 140 includes an air conditioning control module (not shown) and a heating device 120 control module (not shown). The air conditioner controller is used to control the air-conditioning heating system 130 to selectively perform an internal circulation and an external circulation. The heating device 120 control module 140 controls the heating device 120 to operate to heat the front windshield 110.

In the above-mentioned defogging and defrosting system 100 for an automobile, the air-conditioning heating system 130 can selectively perform the inner circulation and the outer circulation, so that when the front windshield 110 is defogged, the control module 140 can control the heating device 120 to heat the front windshield 110, and at the same time, the air-conditioning heating system 130 can be controlled to perform the inner circulation and the outer circulation at the same time. When the heating device 120 starts to heat the front windshield 110, the temperature of the front windshield 110 is low, low-temperature dry air outside the automobile can be introduced through external circulation, the humidity inside the front windshield 110 is reduced, and the front windshield 110 is not easily fogged. After the heating device 120 is heated for a period of time, the temperature of the front windshield 110 is increased, fogging is not easy to occur, and at the moment, the external circulation can be closed and only the internal circulation is performed, so that the heat loss and the energy consumption can be reduced, and the winter endurance mileage of the automobile can be increased.

In one embodiment, the vehicle defogging and defrosting system 100 further includes a power source (not shown). The resistance wire is connected to a power source.

In particular, the power source may be a battery. The resistance wire can be connected to a power supply of an automobile, and an independent power supply can be configured for the resistance wire.

In one embodiment, the vehicle defogging and defrosting system 100 has a defogging mode. The defogging mode includes a first defogging mode. In the first defogging mode, the heating device 120 heats the front windshield 110, and the air-conditioning heating system 130 performs both an inner cycle and an outer cycle, in which the intake air amount of the inside air inlet 101a is greater than the intake air amount of the outside air inlet 101 b.

Specifically, when the first defogging mode, the air input of inside air inlet 101a is greater than the air input of outside air inlet 101b to, compare in the inner loop, the outer loop has introduced relatively less outside low temperature drying gas, both can play the effect that reduces humidity in the car, can consume relatively less electric energy again, and then both can the defogging have reached energy-conserving effect again.

Referring to fig. 3, in one embodiment, the intake chamber 101 has an internal gas intake damper 101c and an external gas intake damper 101 d. The inside air intake damper 101c can adjust the size of the inside air intake port 101a, for example, the size of the inside air intake port can be adjusted according to the degree to which the inside air intake damper 101c is opened. The outside air intake damper 101d can adjust the size of the outside air intake port 101b, for example, the size of the outside air intake port can be adjusted according to the degree to which the outside air intake damper 101d is opened.

In one embodiment, the demisting mode further includes a second demisting mode. In the second defogging mode, the heating device 120 heats the front windshield 110 and the air conditioning heating system 130 performs only the inner circulation. The control module 140 is used for controlling the defogging and defrosting system 100 to switch between the first defogging mode and the second defogging mode.

Specifically, after the automobile defogging and defrosting system 100 operates in the first defogging mode for a certain time, the humidity in the automobile is reduced to a certain degree, the front windshield 110 is not easily fogged, and at this time, the automobile defogging and defrosting system 100 can be controlled to be switched to the second defogging mode through the control module 140. Since the heating device 120 heats the front windshield 110 and the air-conditioning heating system 130 performs only the internal circulation without performing the external circulation in the second defogging mode, energy consumption can be further saved.

After the automobile defogging and defrosting system 100 works in the second defogging mode for a certain time, the humidity in the automobile rises, the control module 140 can control the automobile defogging and defrosting system 100 to be switched to the first defogging mode again, the outer circulation is introduced, and the humidity in the automobile is reduced. Through switching between first defogging mode and second defogging mode, both can in time reduce humidity in the car, can further energy saving again.

In one embodiment, the demisting mode further includes a third demisting mode. In the third defogging mode, the heating device 120 is turned off and the air-conditioning heating system 130 performs only the inner circulation. The control module 140 is used for controlling the automobile defogging and defrosting system 100 to switch between the third defogging mode and the first defogging mode or the second defogging mode.

Specifically, when the temperature of the front windshield 110 is high enough, the front windshield is not easily fogged, and the heating device 120 may be turned off, and only the internal circulation is performed, so as to achieve the energy saving effect.

After the heating device 120 is turned off for a period of time, when the temperature of the front windshield is lowered again, the control module 140 may control the automobile defogging and defrosting system 100 to switch from the third defogging mode to the first defogging mode or the second defogging mode, so as to heat the front windshield again, and thus, the temperature of the front windshield may be timely increased, and the heating device may be turned off in good time to save electric energy.

In one embodiment, the vehicle defogging and defrosting system 100 also has a defrost mode. In the defrosting mode, the heating device 120 heats the front windshield 110, and the air-conditioning heating system 130 performs only an internal circulation. The control module 140 is used for controlling the defogging and defrosting system 100 to switch between a defogging mode and a defrosting mode.

Specifically, the heating device 120 heats the front windshield 110, and the temperature of the front windshield 110 is increased, so that the front windshield 110 is less likely to frost. Because the air-conditioning heating system 130 only carries out internal circulation, the heat in the automobile is not easy to dissipate during the internal circulation, and the electric energy consumption is low.

The temperature and humidity conditions of frosting of the front windshield 110 are different from the temperature and humidity conditions of fogging, and the power of the heating device in the defrosting mode may be different from the power in the defogging mode. The control module 140 may control the automobile defogging and defrosting system 100 to switch between the defogging mode and the defrosting mode according to the temperature and humidity of the front windshield 110.

In one embodiment, the defogging and defrosting outlet 102a includes a front windshield outlet (not shown) and a front side windshield outlet (not shown), wherein the ratio of the air output of the front side windshield outlet to the air output of the front windshield outlet increases when the third defogging mode is switched to the first defogging mode, the second defogging mode or the defrosting mode.

Specifically, the outlet air distribution chamber 102 has a front windshield outlet door (not shown) and a front side windshield outlet door (not shown). The size of the air outlet of the front windshield can be adjusted by the air outlet door of the front windshield, so that the air output of the air outlet of the front windshield can be adjusted. For example, the size of the front windshield vent may be adjusted according to the degree of opening of the front windshield vent door. The size of the front side windshield air outlet can be adjusted by the front side windshield air outlet door, so that the air outlet quantity of the front side windshield air outlet can be adjusted. For example, the size of the front windshield outlet may be adjusted according to the degree of opening of the front windshield outlet.

Referring to fig. 1 and 2, front windshield 150 includes a main driving side windshield 151 and a sub driving side windshield 152.

When the temperature of the front windshield 110 is low, the heating device 120 needs to be used to heat the front windshield 110, and at this time, the automobile defogging and defrosting system 100 can be controlled by the control module 140 to switch from the third defogging mode to the first defogging mode, the second defogging mode or the defrosting mode. Since the front windshield 110 is heated by the heating device 120 while the front windshield 150 is not provided with the heating device 120 in the first defogging mode or the second defogging mode or the defrosting mode, the temperature of the front windshield 150 is relatively lower than that of the front windshield 110. Therefore, when the third defogging mode is switched to the first defogging mode or the second defogging mode, the ratio of the air output of the front windshield air outlet to the air output of the front windshield air outlet is increased, so that the temperature of the front windshield 150 can be relatively increased, and the front windshield 150 is not easy to fog and frost.

In one embodiment, the heating device 120 has a plurality of power steps, each step having a different power level.

Specifically, the heating device 120 may be provided with three gears, four gears, and the like. The power of a plurality of gears is increased in sequence. The heating device 120 can be heated by selecting a specific power gear according to the temperature condition of the front windshield 110.

In one embodiment, the automobile defogging and defrosting system 100 further includes a first temperature sensor 161. First temperature sensor 161 is provided on front windshield 110. The first temperature sensor 161 is configured to measure temperature data of the front windshield 110 and transmit the temperature data of the front windshield 110 to the control module 140. The control module 140 is used for controlling the operating states of the heating device 120 and the air-conditioning heating system 130 according to the temperature data of the front windshield 110.

Specifically, the first temperature sensor 161 may be attached to the surface of the front windshield 110, thereby facilitating accurate measurement of the temperature of the front windshield 110. The temperature data of the front windshield 110 measured by the first temperature sensor 161 is sent to the control module 140, so that the control module 140 can control the operating states of the heating device 120 and the air-conditioning heating system 130 according to the temperature data of the windshield, for example, select a first defogging mode, a second defogging mode, a third defogging mode or a defrosting mode in the defogging mode, thereby facilitating the defogging and defrosting of the front windshield 110.

In one embodiment, the automobile defogging and defrosting system 100 further includes a second temperature sensor 162. The second temperature sensor 162 is disposed inside the vehicle, and is configured to measure temperature data inside the vehicle and send the temperature data inside the vehicle to the control module 140. The control module 140 is used for controlling the operation states of the heating device 120 and the air-conditioning heating system 130 according to the temperature data of the interior of the automobile.

Specifically, the second temperature sensor 162 is provided inside the vehicle, thereby facilitating accurate measurement of the temperature inside the vehicle. The temperature data of the interior of the vehicle measured by the second temperature sensor 162 is sent to the control module 140, so that the control module 140 can control the operating states of the heating device 120 and the air-conditioning heating system 130 according to the temperature data of the interior of the vehicle, for example, select a first defogging mode, a second defogging mode, a third defogging mode or a defrosting mode in the defogging mode, thereby facilitating the defogging and defrosting of the front windshield 110.

In one embodiment, the automobile defogging and defrosting system 100 further includes a third temperature sensor 163. The third temperature sensor 163 is disposed outside the vehicle, and is configured to measure temperature data outside the vehicle and send the temperature data outside the vehicle to the control module 140, and the control module 140 is configured to control the operating states of the heating device 120 and the air-conditioning and heating system 130 according to the temperature data outside the vehicle.

Specifically, the third temperature sensor 163 is disposed outside the automobile, thereby facilitating accurate measurement of the temperature outside the automobile. The temperature data of the outside of the vehicle measured by the third temperature sensor 163 is sent to the control module 140, so that the control module 140 can control the operating states of the heating device 120 and the air-conditioning heating system 130 according to the temperature data of the outside of the vehicle, for example, select the first defogging mode, the second defogging mode, the third defogging mode or select the defrosting mode in the defogging mode, thereby facilitating the defogging and defrosting of the front windshield 110.

In one embodiment, the automobile defogging and defrosting system 100 further includes a humidity sensor 164. The humidity sensor 164 is disposed inside the vehicle, and is configured to measure humidity data inside the vehicle and send the humidity data inside the vehicle to the control module 140, and the control module 140 is configured to control operating states of the heating device 120 and the air-conditioning heating system 130 according to the humidity data inside the vehicle.

Specifically, the humidity sensor 164 may be disposed beside the rearview mirror between the main driver and the sub-driver, thereby facilitating measurement of humidity near the front windshield 110. The humidity data measured by the humidity sensor 164 is sent to the control module 140, so that the control module 140 can control the operation states of the heating device 120 and the air-conditioning heating system 130 according to the humidity data near the front windshield 110, for example, one of the defogging modes is selected or the defrosting mode is selected, thereby facilitating the defogging and defrosting of the front windshield 110.

Referring to fig. 4, an embodiment of the present application provides a defogging method for an automobile. The method comprises the following steps:

step S110: the control module 140 controls the heating device 120 to heat the windshield and controls the air-conditioning heating system 130 to perform the external circulation and the internal circulation at the same time.

Specifically, in the present embodiment, the windshield includes a front windshield 110 and a front windshield 150. The heating device 120 is provided in the front windshield 110, and heats the front windshield 110.

When the front windshield 110 is demisted, the control module 140 controls the heating device 120 to heat the front windshield 110, and controls the air-conditioning and heating system 130 to perform inner circulation and outer circulation simultaneously. When the heating device 120 starts to heat the front windshield 110, the temperature of the front windshield 110 is low, low-temperature dry air outside the automobile can be introduced through external circulation, the humidity inside the front windshield 110 is reduced, and the front windshield 110 is not easily fogged.

Step S130: when the temperature data of the windshield measured by the first temperature sensor 161 rises to a first preset temperature, the control module 140 controls the air-conditioning heating system 130 to close the external circulation.

After the heating device 120 heats the front windshield 110 for a certain period of time, the temperature of the front windshield 110 increases. When the temperature of the front windshield 110 rises to the first preset temperature, the saturated water vapor pressure increases, so that fogging is less likely to occur. At this time, the control module 140 may control the air-conditioning heating system 130 to close the external circulation and only perform the internal circulation, thereby reducing the heat loss and energy consumption and increasing the mileage of the vehicle in winter.

In the above-mentioned defogging and defrosting system 100 for an automobile, the air-conditioning heating system 130 can selectively perform the inner circulation and the outer circulation, so that when the front windshield 110 is defogged, the control module 140 can control the heating device 120 to heat the front windshield 110, and at the same time, the air-conditioning heating system 130 can be controlled to perform the inner circulation and the outer circulation at the same time. When the heating device 120 starts to heat the front windshield 110, the temperature of the front windshield 110 is low, low-temperature dry air outside the automobile can be introduced through external circulation, the humidity inside the front windshield 110 is reduced, and the front windshield 110 is not easily fogged. After the heating device 120 heats the front windshield 110 for a period of time, the temperature of the front windshield 110 is raised to the first preset temperature, the saturated vapor pressure is increased, and fogging is not easily generated. At this time, the control module 140 controls the air-conditioning heating system 130 to close the external circulation and only perform the internal circulation, so that the heat loss and the energy consumption can be reduced, and the winter endurance mileage of the automobile can be increased.

In one embodiment, the defogging and defrosting system for an automobile has a first defogging mode in which the heating device 120 heats the windshield and the air conditioning heating system 130 performs an inner cycle and an outer cycle simultaneously, wherein the intake air amount of the inside air inlet 101a is greater than the intake air amount of the outside air inlet 101 b.

Step S110 specifically includes: the control module 140 controls the vehicle defogging and defrosting system to enter a first defogging mode.

The degree to which the inside air intake damper 101c is opened and the degree to which the outside air intake damper 101d is opened may be controlled by the control module 140 so that the sizes of the inside air inlet 101a and the outside air inlet 101b are adjusted, respectively, so that the amount of intake air of the inside air inlet 101a is larger than that of the outside air inlet 101 b. For example, the ratio of the intake air amount of the inside air intake port 101a to the intake air amount of the outside air intake port 101b may be 7: 3.

In one embodiment, the defogging and defrosting system has a second defogging mode in which the heater 120 heats the windshield and the air conditioning system 130 only performs internal circulation.

The automobile defogging and defrosting system is provided with a humidity sensor 164, and the humidity sensor 164 is arranged in the automobile and used for measuring the humidity data in the automobile and sending the humidity data in the automobile to the control module 140.

The automobile defogging method further comprises the following steps: when the humidity data of the interior of the vehicle measured by the humidity sensor 164 falls to the first preset humidity, the control module 140 controls the air-conditioning heating system 130 to close the external circulation and enter the second defogging mode.

Specifically, after the automobile defogging and defrosting system 100 operates in the first defogging mode for a certain period of time, the humidity in the automobile decreases. When the humidity in the vehicle is reduced to the first preset humidity, the front windshield 110 is not easily fogged, and at this time, the control module 140 may control the vehicle defogging and defrosting system 100 to switch to the second defogging mode. Since the heating device 120 heats the front windshield 110 and the air-conditioning heating system 130 performs only the internal circulation without performing the external circulation in the second defogging mode, energy consumption can be further saved. The value of the first preset humidity may be set in advance according to the actual humidity condition and stored in the control module 140.

In one embodiment, when the humidity data measured by the humidity sensor 164 in the vehicle interior falls to a first preset humidity, the control module 140 controls the air-conditioning heating system 130 to close the external circulation, and after entering the second defogging mode,

when the humidity data of the interior of the vehicle measured by the humidity sensor 164 rises to the second preset humidity, the control module 140 controls the air-conditioning heating system 130 to start the external circulation to enter the first defogging mode.

Specifically, after the automobile defogging and defrosting system 100 operates in the second defogging mode for a certain period of time, the humidity in the automobile increases. When the humidity in the vehicle is increased to the second preset humidity, the control module 140 may control the vehicle defogging and defrosting system 100 to switch to the first defogging mode again, so as to introduce an external circulation to reduce the humidity in the vehicle. Through switching between first defogging mode and second defogging mode, both can in time reduce humidity in the car, can further energy saving again. The value of the second preset humidity may be set in advance according to the actual humidity condition and stored in the control module 140.

In one embodiment, the control module 140 controls the gear of the heating device to increase when the temperature of the windshield measured by the first temperature sensor 161 decreases to a second preset temperature.

Specifically, the value of the second preset temperature may be set in advance according to the actual temperature condition and stored in the control module 140. When the temperature of the front windshield 10 is decreased to the second preset temperature, the control module 140 controls the gear of the heating device to be increased, so that the power of the heating device is increased, the temperature of the front windshield can be rapidly increased, and the purpose of rapid defogging is achieved.

In one embodiment, the vehicle defogging and defrosting system 100 has a third defogging mode. In the third defogging mode, the heating device 120 is turned off and the air-conditioning heating system 130 performs only the inner circulation. The windshield includes a front windshield 110 and a front windshield 150. The heating device 120 is provided in the front windshield 110. The defogging and defrosting vents 102a include an adjustable size front windshield vent (not shown) and a front side windshield vent (not shown). When the automobile defogging and defrosting system 100 is switched from the third defogging mode to the first defogging mode or the second defogging mode, the control module 140 controls the air-conditioning heating system 130 so that the ratio of the air output of the front side windshield air outlet to the air output of the front windshield air outlet is increased.

Specifically, since the front windshield 110 is heated by the heating device 120 while the front windshield 150 is not provided with the heating device 120 in the first defogging mode or the second defogging mode, the temperature of the front windshield 150 is relatively lower than that of the front windshield 110. Therefore, when the third defogging mode is switched to the first defogging mode or the second defogging mode, the ratio of the air output of the front windshield air outlet to the air output of the front windshield air outlet is increased, so that the temperature of the front windshield 150 can be relatively increased, and the front windshield 150 is not easy to fog and frost.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An automotive defogging and defrosting system comprising:

the heating device is arranged in a front windshield on the automobile;

an air-conditioning heating system; and

2. The system of claim 1, wherein the heating device is disposed within an interlayer of the front windshield.

3. The system of claim 2, wherein the heating device comprises a resistance wire disposed within an interlayer of the front windshield.

4. The defogging and defrosting system according to claim 1, wherein said air conditioning heating system comprises:

an evaporator for cooling the gas from the inlet chamber;

the warm air core is used for heating the air from the air inlet chamber;

5. The defogging and defrosting system according to claim 4, wherein said defogging and defrosting system has a defogging mode, said defogging mode including a first defogging mode, in said first defogging mode, said heating device heats said front windshield, and said air conditioning heating system simultaneously performs an inner cycle and an outer cycle, wherein an air intake amount of said inner air intake port is larger than an air intake amount of said outer air intake port.

6. The system of claim 5, wherein the defogging mode further comprises a second defogging mode wherein the heating device heats the front windshield and the air conditioning heating system is only internally cycled; the control module is used for controlling the automobile defogging and defrosting system to switch between the first defogging mode and the second defogging mode.

7. The defogging and defrosting system according to claim 5, wherein said defogging and defrosting system has a defrosting mode in which said heating device heats said front windshield and said air conditioning heating system only performs an internal cycle; the control module is used for controlling the automobile defogging and defrosting system to switch between the defogging mode and the defrosting mode.

8. The defogging and defrosting system according to claim 5, 6 or 7, wherein said defogging mode further comprises a third defogging mode wherein said heating device is turned off and said air conditioning heating system is only internally cycled; the control module is used for controlling the automobile defogging and defrosting system to switch between the third defogging mode and the first defogging mode or the second defogging mode or the defrosting mode.

9. The system of claim 8, wherein the defogging and defrosting outlets comprise a front windshield outlet and a front side windshield outlet, wherein the size of the front windshield outlet is adjustable, and wherein when the third defogging mode is switched to the first defogging mode, the second defogging mode or the defrosting mode, the ratio of the air output of the front side windshield outlet to the air output of the front windshield outlet is increased.

10. The system of claim 1, wherein the heating device has a plurality of power stages, each stage having a different power level.

11. The defogging and defrosting system for an automobile according to any one of claims 1 to 10, further comprising:

12. An automobile comprising a body and an automobile defogging and defrosting system according to any one of claims 1 to 11, wherein said automobile defogging and defrosting system is mounted on said body.

13. A method for defogging and defrosting an automobile, based on any one of claims 1 to 11, comprising:

14. The defogging method according to claim 13, wherein said defogging and defrosting system has a first defogging mode, in which said heating device heats said front windshield and said air conditioning heating system simultaneously performs an inner cycle and an outer cycle, wherein an air intake of said interior air intake is larger than an air intake of said exterior air intake;

15. The method as claimed in claim 14, wherein the defogging and defrosting system has a second defogging mode, wherein the heating device heats the front windshield and the air conditioning heating system performs only an internal circulation;

16. The defogging method according to claim 15, wherein after the step of controlling the air conditioning heating system to close the external circulation to enter the second defogging mode when the humidity data of the interior of the vehicle measured by the humidity sensor falls to a first preset humidity,

17. The method as claimed in claim 15, wherein the defogging and defrosting system has a third defogging mode, wherein the heating device is turned off and the air conditioning heating system is only internally circulated; the defogging and defrosting air outlet comprises a front windshield air outlet and a front side windshield air outlet, and the sizes of the front windshield air outlet and the front side windshield air outlet can be adjusted;