KR20150096845A - Particulates measuring apparatus in vehicles and operating method thereof - Google Patents

Particulates measuring apparatus in vehicles and operating method thereof Download PDF

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Publication number
KR20150096845A
KR20150096845A KR1020140017639A KR20140017639A KR20150096845A KR 20150096845 A KR20150096845 A KR 20150096845A KR 1020140017639 A KR1020140017639 A KR 1020140017639A KR 20140017639 A KR20140017639 A KR 20140017639A KR 20150096845 A KR20150096845 A KR 20150096845A
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South Korea
Prior art keywords
vehicle
fine dust
filter
unit
pollution
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KR1020140017639A
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Korean (ko)
Inventor
신진욱
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신진욱
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Priority to KR1020140017639A priority Critical patent/KR20150096845A/en
Publication of KR20150096845A publication Critical patent/KR20150096845A/en

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    • B01D46/0065—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/0065—Control members, e.g. levers or knobs
    • B60H1/00657—Remote control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00792—Arrangement of detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00985—Control systems or circuits characterised by display or indicating devices, e.g. voice simulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream
    • B60H3/0616—Filter arrangements in the air stream with provisions for replacing the filter element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0608—Filter arrangements in the air stream
    • B60H3/0633—Filter arrangements in the air stream with provisions for regenerating or cleaning the filter element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H2003/0683—Filtering the quality of the filter or the air being checked

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The present invention relates to an indoor fine dust measuring apparatus for a vehicle and a method of operating the same for measuring airborne contamination in a vehicle interior by measuring fine dust in a vehicle interior, the fine dust detecting unit measuring fine dust in a vehicle interior; The pollution level informing unit displays or audibly outputs the fine dust pollution degree in the vehicle interior according to the measured value transmitted from the fine dust sensor unit; The contamination state management unit manages the contamination of the interior of the vehicle corresponding to the measurement value transmitted from the fine dust sensor unit or the value of the fine dust pollution degree transmitted from the pollution degree notification unit, Notify the driver or passenger of the cleaning; The power supply section converts the power into the power required for the fine dust sensor section, the contamination level notification section, and the contamination status management section.

Description

TECHNICAL FIELD [0001] The present invention relates to an indoor fine dust measuring apparatus and an operating method thereof,

The present invention relates to an indoor fine dust measuring device for a vehicle and a method of operating the same. More particularly, the present invention relates to an indoor fine dust measuring device for a vehicle and a method of operating the indoor fine dust measuring device for measuring fine dust in a vehicle interior.

As the industry has advanced and improved the quality of life and the vehicle penetration rate has increased and the 5-day workweek has been implemented, the frequency of vehicle use has been increasing as the weekend leisure activity has become active. Therefore, The exposure time also increased.

In the vehicle, the state of the indoor air can be controlled by opening or closing the window or manually operating the air circulation mode of the temperature control device, that is, by controlling the opening and closing of the windows and the air circulation mode of the temperature control device The air inside the vehicle can be circulated. Accordingly, when the driver or the occupant feels that the indoor air of the vehicle is turbid, the indoor air is prevented from being contaminated by opening the window or changing the air circulation mode of the temperature control device to the outdoor air suction mode.

Such an operation for preventing the contamination of the vehicle interior air only depends on the manual operation of the driver or the occupant, that is, solely depending on the actor or actress of the occupant, so that accidental poisoning due to contaminated indoor air may occur unexpectedly.

Recently, AQS (Air Quality Control System) is installed in a vehicle. AQS measures the pollution degree of the air coming from the outside of the vehicle when the vehicle is running, and when the pollution degree is above a certain level, Block the air. Such a system has only a function of shutting off the air sucked from the outside, and there is no function for the pollution of the air inside the vehicle, so that the fuel gas is sucked into the inside of the vehicle, In the event of contamination, the driver or passenger must directly detect the opening and closing of the window and adjust the air circulation mode of the temperature control device.

Korean Registered Utility Model No. 20-0300242 (registered on December 24, 2002) describes the indoor air pollution warning and prevention device of a vehicle. It is installed in a vehicle interior and detects indoor air pollution Sensor and indoor air pollution detection sensor are compared with a reference value to output a warning control signal, a temperature control signal, and a motor driving control signal for preventing contamination of the indoor air of the vehicle An alarm unit for receiving an alarm control signal outputted from the ECU and lighting an indoor air pollution warning lamp provided on the vehicle instrument panel to make an alarm sound; and an air circulation mode An outdoor air suction mode, and a control unit for receiving a motor driving control signal output from the ECU, Being configured to drive the motor to a window control section for the drive motor to open a window of a vehicle is characterized. According to the disclosed technology, the degree of air pollution in a vehicle interior is measured. When the air pollution degree is higher than a reference value, a warning lamp is turned on, an alarm is sounded, or an air circulation mode is changed to an outdoor air intake mode, Thereby preventing the driver or the passenger from being in danger.

Korean Patent Laid-Open No. 10-2007-0103228 (published on October 22, 2007) discloses an automobile internal air measurement system for measuring the air pollution degree by using a sensor. According to the disclosed technology, a sensor for sucking air inside the automobile and measuring the degree of contamination of the inhaled air; A contamination reading unit for reading the air pollution degree using the value output by the sensor; An output unit for outputting a result read by the contamination reading unit; An air purifier control unit for controlling a predetermined air purifier using the result read by the pollution reading unit; And a window control unit for controlling the opening and closing of the window of the automobile using the result read by the pollution reading unit. Thus, it is possible to manage the air pollution in the vehicle by measuring the air pollution degree in the automobile.

The prior art as described above focuses on simply purifying the air inside the vehicle by using the air purifier and does not solve the original problem of generating fine dust in the interior of the vehicle by the air purifier itself, Therefore, there is a disadvantage that the pollution of the indoor air is vicious. In addition, in the conventional art, the apparatus for measuring indoor dust particles is large in size and easy to measure in general, and is not developed for vehicles, so that it is not possible to easily identify the indoor air pollution. In addition, The indoor air purification is separately performed irrespective of whether the indoor air is cleaned or not.

Korean Registered Utility Model No. 20-0300242 Korean Patent No. 10-1026222

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide an indoor fine dust measuring device for a vehicle and a method of operating the indoor fine dust measuring device for measuring the fine dust of a vehicle interior, do.

In order to solve such a problem, according to one aspect of the present invention, there is provided an air conditioner comprising: a fine dust sensor unit for measuring fine dust in a vehicle interior; A pollution degree notification unit for displaying or audibly outputting a fine dust pollution degree in a vehicle interior according to a measurement value transmitted from the fine dust sensor unit; The control unit controls the contamination of the interior of the vehicle corresponding to the measured value transmitted from the fine dust sensor unit or the fine dust pollution degree value transmitted from the pollution level notification unit, A pollution state management unit for informing the driver or the passenger; And a power supply unit for converting the power supplied to the fine dust sensor unit, the pollution level notification unit, and the pollution state management unit into a power source and supplying the power.

In one embodiment, the fine dust sensor unit includes an amplifier formed at an output portion to amplify a measured value.

In one embodiment, the fine dust sensor unit is characterized by having a bypass capacitor connected in parallel to an output portion to remove noise of a measured value.

In one embodiment, the fine dust sensor unit includes: a frame; A plurality of filters carried within the frame; An intake port formed at an upper portion of the frame; An outlet formed at a lower portion of the frame; A vacuum pump for allowing indoor air of the vehicle to pass through the intake port and pass through the filter to the exhaust port; A flow regulator for regulating the amount of air in the vehicle; A light source for irradiating the beta rays with the filter; A sensor for measuring the amount of fine dust passing through the filter to measure fine dust in the inside of the vehicle; A filter hull for dusting the dust accumulated in the filter; A dust collector for dust collected from the filter hairs; And a filter feeder for feeding the new filter after the sensor measures the fine dust and for transferring the previous filter to the filter hairs.

In one embodiment, the pollution level informing unit displays the fine dust pollution level by dividing the pollution level into a plurality of levels.

In one embodiment, the contamination state management unit drives the dust removal filter device according to the measurement value transmitted from the fine dust sensor unit or the fine dust pollution degree value transmitted from the pollution degree notification unit to purify the air inside the vehicle The air conditioner filter and the air filter are inspected by driving the air conditioner or the vehicle air conditioning system to drive the filter inspecting device or the external dust sensor device is driven to measure the pollution degree of the outside air.

In one embodiment, the vehicular indoor fine dust measuring device may include a wireless communication module, and may include a warning, a filter replacement, and a vehicle interior cleaning according to the contamination management result of the vehicle interior performed by the contamination state management unit, And a remote device unit for notifying the terminal.

In one embodiment, the remote unit informs the personal terminal of the driver or the passenger of the measurement value transmitted from the fine dust sensor unit or the fine dust pollution degree value transmitted from the pollution level notification unit, or performs the indoor pollution management And transmits the remote control command received from the personal terminal installed with the app to the controller to the contamination state management unit to manage contamination of the vehicle interior corresponding to the remote control command.

In one embodiment, the power supply unit supplies power of the vehicle power source or the vehicle battery generated from the vehicle generator at the time of using the vehicle to the micro dust sensor unit, the pollution level notification unit, the pollution state management unit, .

In one embodiment, the power supply unit charges the internal rechargeable battery by receiving the vehicle power supplied from a generator or a battery of the vehicle, discharges the power charged in the rechargeable battery, and notifies the fine dust sensor unit, The contamination state management unit, and the remote device unit.

In one embodiment, the power supply unit is charged with an internal rechargeable battery by receiving solar cell power provided from a solar cell power supply unit provided on an upper surface.

In one embodiment, the power supply unit includes a capacitor connected in parallel to the input portion to supply the vehicle power supplied from the generator or battery of the vehicle, or the solar battery power of the solar battery power supply to the internal rechargeable battery stably, And a capacitor connected in parallel at an output portion for stably supplying power from the rechargeable battery to the fine dust sensor unit, the contamination level notification unit, the contamination state management unit, and the remote device unit.

According to another aspect of the present invention, there is provided a method of controlling a micro-dust sensor, comprising: converting a power supply unit into a power source necessary for a micro dust sensor unit, a pollution notification unit, and a pollution state management unit; A fine dust sensor unit for measuring fine dust in a vehicle interior; A step of displaying a degree of fine dust on the inside of the vehicle corresponding to the measured value of the fine dust or outputting a sound according to the measured value of the fine dust; Managing pollution of the interior of the vehicle corresponding to the measured value of the fine dust or the value of the fine dust pollution; And the pollution state management unit notifies the driver or the passenger of the warning, the replacement of the filter, and the interior cleaning of the vehicle according to the management result.

In one embodiment, the supplying step may include supplying power to the internal rechargeable battery in accordance with whether the vehicle generator is driven, the vehicle battery charging state, the solar battery power supply state of the solar battery power supply state, And the discharge line of the internal rechargeable battery.

In one embodiment, the supplying step includes the steps of: switching the line for supplying the power generation power or the vehicle battery power depending on whether the vehicle generator is driven when the charging state of the internal rechargeable battery is full; Switching the line for supplying the vehicle battery power or the power of the internal rechargeable battery according to the state of charge of the vehicle battery when the vehicle generator is not driven in a fully charged state of the internal rechargeable battery; Switching the line for supplying the power of the solar cell power supply or the internal rechargeable battery according to the solar battery power supply state of the solar battery power supply unit when the vehicle generator is not driven in a fully charged state of the internal rechargeable battery; When the charging state of the internal rechargeable battery is not good, a line for supplying the power generation power and a line for charging the internal rechargeable battery are switched or controlled depending on whether the vehicle generator is driven or a line for supplying the vehicle battery power is switched ; When the vehicle generator is not driven in the fully charged state of the internal rechargeable battery, the line for supplying the vehicle battery power and the line for charging the internal rechargeable battery may be switched or controlled depending on the state of charge of the vehicle battery, Switching the line for supplying power to the battery; And switching the line for supplying the power of the solar cell power supply or the internal rechargeable battery depending on the state of the solar battery power supply of the solar battery power supply unit when the vehicle generator is not driven in the full- And controlling switching of a line for charging the solar cell power source to the internal rechargeable battery.

In one embodiment, the measuring step comprises the steps of: a filter conveyor to transfer the filter to fix the filter; Operating the vacuum pump to introduce indoor air through the intake port and passing through the filter to the exhaust port; Adjusting the amount of air in the vehicle through which the flow rate regulator flows through the intake port and allowing air in the vehicle to flow in the vehicle for a predetermined period of time to accumulate fine dust in the interior of the vehicle; Irradiating the filter with a beta ray from the light source after stopping the operation of the vacuum pump; Measuring the amount of fine dust passing through the filter and measuring fine dust in the interior of the vehicle; Allowing the filter feeder to transfer the new filter while transferring the previous filter to the filter hull; And a step in which the filter hairs shake the dust accumulated in the previous filter, and the dust collector picks up the dust which has been cleaned.

In one embodiment, the managing step may include filtering the air in the interior of the vehicle in accordance with driving control of the contamination state management unit by the dust removing filter apparatus; Ventilating the vehicle interior air in a recirculation mode or an outside air intake mode by controlling the intake and exhaust lines of the vehicle in accordance with drive control of the contaminated state management unit by the vehicle air conditioning system; The filter check apparatus checks the condition of the air conditioner filter or the air filter according to the drive control of the pollution state management unit and informs the driver or the passenger of the replacement of the air conditioner filter or the air filter according to the value of the fine dust pollution degree of the checked filter A step; And the external dust sensor device measures the pollution degree of the outside air according to the drive control of the pollution state management section and controls the driving of the vehicle air conditioning system according to the measured value of the outside air pollution degree .

According to the present invention, fine dusts in a vehicle interior are measured to manage the cleanliness of the vehicle interior air, thereby displaying (for example, three LED color displays) according to the degree of contamination of the vehicle interior air, The air inside the vehicle is cleaned to effectively remove the fine dust in the inside of the vehicle. Accordingly, it is possible to easily check the air pollution in the vehicle interior, and the indoor air purification can be effectively performed according to the pollution degree of the air inside the vehicle.

According to the present invention, by analyzing the internal contamination of the vehicle due to fine dust, and managing the clean state of pollutants (for example, inside the air conditioner filter and the blower), it is possible to provide an apparatus for measuring indoor fine dust for vehicles It is easy to integrate with PC and mobile terminal through hardware upgrading, and can also function as interior decoration.

1 is a view for explaining an indoor fine dust measuring apparatus for a vehicle according to an embodiment of the present invention.
FIG. 2 is a view for explaining the power supply unit, the fine dust sensor unit, and the pollution level notification unit shown in FIG. 1;
2 is a flowchart illustrating a method of operating an indoor fine dust measuring apparatus for a vehicle according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An indoor fine dust measuring apparatus and method for a vehicle according to an embodiment of the present invention will now be described in detail with reference to the drawings.

1 is a view for explaining an indoor fine dust measuring apparatus for a vehicle according to an embodiment of the present invention.

1, the in-vehicle indoor fine particle measuring apparatus 100 includes a power supply unit 110, a fine dust sensor unit 120, a pollution level notification unit 130, a pollution status management unit 140, a remote device unit 150 ).

The power supply unit 110 is required to supply the in-vehicle indoor fine dust measuring apparatus 100 (i.e., the fine dust sensor unit 120, the contamination level notification unit 130, the contamination state management unit 140, and the remote device unit 150) Power supply and supply it.

In one embodiment, the power supply unit 110 may use an internal power source of the vehicle such as a vehicle battery, and may also supply power to the fine dust sensor unit 120 at all times Thereby making it possible to perform fine dust measurement on the fine dust sensor unit 120.

The fine dust sensor unit 120 is driven by a power source supplied from the power supply unit 110 and measures fine dust and small particles in the interior of the vehicle and transmits the measured value to the contamination level notification unit 130 (E.g., remote device 140 or remote device 150).

In one embodiment, the fine dust sensor unit 120 includes a frame, a plurality of filters that are transferred to the inside of the frame, a filter feeder, a light source installed on the upper portion of the filter, A vacuum pump, a filter hull, and a dust collector. After the filter feeder feeds the filter to fix the filter so as not to move to the right and left, The flow rate controller adjusts the amount of indoor air introduced through the flow rate regulator, and at the same time, the indoor air of the vehicle is introduced for a predetermined period of time, After putting it on the filter, stop the operation of the vacuum pump, illuminate the Beta line with the filter in the light source, It senses the amount of flying wire to measure fine dust in the interior of the vehicle. Then, the filter feeder feeds the new filter and transfers the old filter to the filter hairs. The filter hairs shake dust accumulated in the old filter By allowing the dust to be collected through a dust collector, it is always possible to replace the filter with a new filter to more accurately measure the minute dust in the interior of the vehicle.

The pollution level notification unit 130 is driven by the power supplied from the power supply unit 110 and displays the degree of fine dust pollution in the vehicle interior or outputs voice according to the measurement value transmitted from the fine dust sensor unit 120.

In one embodiment, the pollution level informing unit 130 includes a CPU IC (i.e., a programmable IC (e.g., ATmega 8)) that has been programmed to measure the pollution level from the fine dust sensor unit 120 Or may display the pollution degree value of the fine dust corresponding to the read measurement value through the LED or the LCD or may transmit it to the pollution state management unit 140 or the remote device unit 150.

The contamination state management unit 140 is driven by a power source supplied from the power supply unit 110 and detects a measurement value transmitted from the fine dust sensor unit 120 (or a fine dust pollution degree value transmitted from the pollution level notification unit 130) And displays a warning according to the management result or outputs it by voice to notify the driver or the passenger of the replacement of the filter or cleaning of the inside of the vehicle.

In one embodiment, the contamination state management unit 140 may control the pollution level of the interior of the vehicle corresponding to the measured value transmitted from the fine dust sensor unit 120 (or the fine dust pollution degree value transmitted from the pollution level notification unit 130) In this case, the dust removing filter device is driven to purify the air inside the vehicle, or the vehicle air conditioning system is driven to ventilate the air conditioner, or the filter check device is driven to check the condition of the air conditioner filter and the air filter, The pollution degree of the outside air can be measured by driving the external dust sensor device.

In one embodiment, the dust removing filter device is installed in the indoor fine dust measuring device 100 for a vehicle, or installed in a tentacle or the like of a vehicle, and filters the air in the vehicle interior according to drive control of the contaminated state management part 140. [ As an apparatus, it may have at least one particle filter region and at least one chemical filter region comprising an activated carbon filter. Here, the particle filtration area is the initial (at initial start-up) filter efficiency T (0.3 μm) measured according to DIN 71460/1 @ 300 m 3 / h using an AC Fine Test Dust ≥ 90% and a filter efficiency T (0.1 탆) ≥60% measured according to DIN 71460 @ 300 m 3 / h using NaCl as the experimental aerosol. At this time, the filtering can be performed on submicron particles (<2.5 μm; the maximum number distribution of air-transported particles is approximately 0.1 μm to 0.3 μm). Also, the activated carbon filter has catalytic or basic activated carbon filter regions, and can remove acidic gas present in the air of the vehicle interior.

In one embodiment, the vehicle air conditioning system may include an air purifying unit, a blower unit, a damper unit, a heating unit, a cooling unit, a humidifying unit, and the like. Air circulation mode can be operated in the recirculation mode or the outside air suction mode by controlling the discharge line. In the case of the recirculation mode, the air in the vehicle interior space is recirculated so that no outside air is introduced into the vehicle interior space , And to allow external air to flow into the vehicle interior space to some extent in the case of the outside air intake mode. Here, the air-cleaning unit includes a filter for removing fine dust, which includes a wrinkled intermediate filter, a high-efficiency air filter, an electrostatic filter, an activated carbon filter, a certain type of catalytic filter, a chemically- .

In one embodiment, the filter checking device checks the condition of the air conditioner filter and the air filter according to the drive control of the pollution condition managing unit 140, and includes a light source on the filter and a sensor under the filter, And the sensor senses the amount of the beta rays passing through the filter to measure the fine dust accumulated on the filter and inform the contamination state management unit 140 of the fine dust contamination value of the measured filter.

In an embodiment, the external dust sensor device is similar in construction to the above-described fine dust sensor unit 120, and thus description thereof will be omitted. However, according to the drive control of the contamination state management unit 140, And may report the measured external air pollution degree value to the pollution state management unit 140. At this time, the pollution state management unit 140 can control the driving of the vehicle air conditioning system (i.e., the recirculation mode, the outside air intake mode, and the like) according to the value of the external air pollution degree measured by the external dust sensor device.

The remote device unit 150 is driven by a power source supplied from the power supply unit 110 and includes a wireless communication module to perform a warning based on the contamination management result of the vehicle interior performed by the contamination state management unit 140, (E.g., a smart phone, etc.) of a driver or a passenger.

The remote device unit 150 may transmit the measured value transmitted from the fine dust sensor unit 120 (or the value of the fine dust contamination degree transmitted from the contamination level notification unit 130) to the driver's terminal or the occupant's personal terminal By transmitting a remote control command received from a personal terminal installed with an app for allowing the user to perform indoor air pollution management to the pollution state management unit 140 to manage pollution in a vehicle interior corresponding to the remote control command, The passenger can remotely control the in-vehicle fine dust measuring device 100 using his / her personal terminal.

The indoor fine dust measuring apparatus 100 for a vehicle having the above-described structure measures minute dust in the interior of the vehicle from the fine dust sensor unit 120, and according to the measurement result, (For example, three colors of LED colors) according to the degree of contamination of the inside of the vehicle through the pollution level notification unit 130, and at the same time, the management of the pollution state management unit 140 The air inside the vehicle is cleaned to effectively remove fine dust from the inside of the vehicle. Accordingly, it is possible to easily check the contamination of the indoor air, and the indoor air can be effectively cleaned according to the degree of the indoor air pollution.

The indoor fine dust measuring apparatus 100 for a vehicle having the above-described structure analyzes the inside contamination of the vehicle due to fine dust in the contaminated state managing unit 140 and measures the amount of pollutants (for example, inside the air conditioner filter and the blower) By managing the cleanliness of the interior, it is possible to provide a compact and low-cost device for measuring indoor dust particles for vehicles, and it is easy to fuse with PCs and mobile terminals through advanced hardware, give.

FIG. 2 is a view for explaining the power supply unit, the fine dust sensor unit, and the pollution level notification unit shown in FIG. 1;

Referring to FIG. 2, the power supply unit 110 receives a vehicle power supply (VCC) provided from a vehicle generator or a battery of the vehicle, charges the internal rechargeable battery, discharges the rechargeable battery It is possible to supply the discharge power to the power source necessary for the indoor fine dust measuring apparatus 100 for a vehicle.

In one embodiment, the power supply unit 110 may supply the solar cell power provided from the solar cell power supply unit installed on the upper surface of the in-vehicle indoor fine dust measurement apparatus 100 to charge the internal rechargeable battery.

In one embodiment, the power supply unit 110 is connected in parallel to the output unit to supply power discharged from the rechargeable battery to the fine dust sensor unit 120, the pollution level notification unit 130, the pollution status management unit 140, A capacitor for stably supplying the voltage to the unit 150 may be provided. Further, the capacitor may be connected in parallel to the input portion so as to stably charge the vehicle power supply (VCC) supplied from the vehicle battery or the vehicle generator to the internal rechargeable battery.

The fine dust sensor unit 120 may include an amplifier at the output portion. Here, the amplifier may amplify the measured value and output the amplified measurement value to the pollution level informing unit 130 as the OP AMP IC.

In one embodiment, the fine dust sensor unit 120 includes a bypass capacitor (Bypass) for transmitting measurement values output to the pollution level notification unit 130 in parallel to the output unit, And a capacitor. At this time, the setting value of the bypass capacitor can be set in advance so that the noise of the measured value is minimized through the test.

The pollution level informing unit 130 reads out the measured value (i.e., DUST OUT) output from the fine dust sensor unit 120 through the internal PWM control using the CPU IC programmed in the C language, RAM.

In one embodiment, the pollution level informing unit 130 can display the pollution degree value of the fine dust classified by the LED color, that is, display the pollution degree value of the fine dust in a plurality of stages (for example, As shown in FIG. In addition, the pollution level informing unit 130 may further display the LED display step in detail.

3 is a flowchart illustrating an operation method of an indoor fine dust measuring apparatus for a vehicle according to an embodiment of the present invention.

Referring to FIG. 3, first, the power supply unit 110 supplies the components of the in-vehicle indoor fine dust measuring apparatus 100, that is, the fine dust sensor unit 120, the pollution level notification unit 130, , And supplies power to the remote device unit 150 (S301). At this time, the power supply unit 110 uses the internal power source of the vehicle such as a vehicle battery, or uses the generator of the vehicle at the time of using the vehicle to always turn on the vehicle battery power or the power generation power source to the fine dust sensor unit 120 So that the fine dust sensor unit 120 can always measure minute dust.

In step S301 described above, the power supply unit 110 receives the vehicle power supply VCC provided from the vehicle's generator or the battery of the vehicle and charges the internal rechargeable battery. Alternatively, the in-vehicle indoor fine dust measuring apparatus 100 The solar cell power supply unit provided on the upper surface of the solar cell power supply unit is charged with the internal rechargeable battery to discharge the power charged in the rechargeable battery when necessary, It is possible to supply the necessary power to the indoor fine dust measuring apparatus 100.

The capacitor connected in parallel to the output portion of the power supply unit 110 in the step S301 may supply the power discharged from the internal rechargeable battery to the fine dust sensor unit 120, the pollution level notification unit 130, 140 and the remote device unit 150 in a stable manner. Also, the capacitor connected in parallel to the input portion of the power supply unit 110 may stably charge the vehicle battery (VCC) supplied from the vehicle battery or the vehicle generator to the internal rechargeable battery.

In the above-described step S301, the power supply unit 110 may supply power to the internal (external) power supply according to whether the vehicle generator is driven, the vehicle battery is charged, the solar battery is supplied with power from the solar battery, The charging line to the rechargeable battery or the discharging line of the internal rechargeable battery may be controlled to be switched.

In one embodiment, when the state of charge of the internal rechargeable battery is full, depending on whether the vehicle generator is driven, the power generation power source (when the vehicle generator is driven) or the vehicle battery power source (when the vehicle generator is not driven) To the respective constituent elements provided in the in-vehicle fine dust measuring apparatus 100 for vehicle.

In one embodiment, when the vehicle generator is not driven in a fully charged state of the internal rechargeable battery, depending on the state of charge of the vehicle battery, the vehicle battery power (the vehicle battery is charged to at least the limit value (In the case where the vehicle battery is in a charged state of a limit of the battery) to the respective constituent elements provided in the in-vehicle fine dust measuring apparatus 100. In this case,

In one embodiment, when the vehicle generator is not driven in a fully charged state of the internal rechargeable battery, the power of the solar battery power or the internal rechargeable battery is measured in accordance with the solar battery power supply state of the solar battery power supply device It is possible to switch and control the line for supplying each component provided in the apparatus 100. [

In one embodiment, when the state of charge of the internal rechargeable battery is not good, when the vehicle generator is driven depending on whether the vehicle generator is driven or not, the generator power is supplied to each component provided in the vehicle interior fine dust measurement apparatus 100 And supplies the vehicle battery power to each component provided in the in-vehicle fine dust measuring apparatus 100 when the vehicle generator is not driven, The line can be switched and controlled.

In one embodiment, when the vehicle generator is not driven in a non-full charging state of the internal rechargeable battery, when the vehicle battery is in a charging state of more than a threshold value according to the charging state of the vehicle battery, A line for supplying each component provided in the in-vehicle indoor fine dust measuring apparatus 100, a line for charging the internal rechargeable battery, or a line for charging the internal rechargeable battery when the vehicle battery is in a charged state, Can be controlled by switching the line for supplying power to the components of the in-vehicle indoor fine dust measuring apparatus 100. [

In one embodiment, when the vehicle generator is not driven in the fully-charged state of the internal rechargeable battery, the power of the solar battery power or the internal rechargeable battery is switched to the indoor fine It is also possible to perform switching control for switching the line for supplying each constituent element provided in the dust measuring apparatus 100 or switching the line for charging the solar battery power to the internal rechargeable battery.

The power source supplied in step S301 is input to the fine dust sensor unit 120. The fine dust sensor unit 120 measures fine dust (or small particles) in the interior of the vehicle, To the notification unit 130 (or the contamination state management unit 140 or the remote device unit 150) (S302).

In the above-described step S302, the fine dust sensor unit 120 includes a frame, a plurality of filters to be transferred inside the frame, a filter feeder, a light source on the filter, a sensor under the filter, In the case where a flow regulator, a vacuum pump, a filter hull, and a dust collector are provided, the filter feeder first feeds the filter to fix the filter so that the filter is not moved to the right and left, and then operates the vacuum pump, Take it through the filter and discharge it to the outlet. At this time, the flow rate controller adjusts the amount of air in the vehicle through the intake port, and also allows the indoor air to flow into the vehicle for a predetermined period of time to accumulate fine dust in the interior of the vehicle. Then, after stopping the operation of the vacuum pump, the light source irradiates the beta ray with a filter, and the sensor senses the amount of the beta ray passing through the filter, thereby measuring the fine dust in the vehicle interior. The filter feeder then feeds the new filter and at the same time feeds the old filter to the filter hairs so that the filter hairs can remove the dust accumulated in the previous filter and allow the dust collector to collect the dust, It is possible to measure fine dust in the vehicle interior more accurately by replacing the filter with a filter.

In one embodiment, the amplifier provided at the output portion of the fine dust sensor portion 120 is an OP AMP IC that amplifies the value measured at the fine dust sensor portion 120 (i.e., the amount of the betaine sensed by the sensor) And output the amplified measurement value to the pollution level notification unit 130.

The bypass capacitor connected in parallel to the output portion of the fine dust sensor unit 120 removes the noise of the measured value from the fine dust sensor unit 120 and then transmits the noise to the pollution notification unit 130 At this time, the setting value of the bypass capacitor can be preset so that the noise of the measured value is minimized through the test.

The power supplied in step S301 is input to the pollution level informing unit 130 and the measurement value transmitted in step S302 is input to the pollution level informing unit 130. The pollution level informing unit 130 notifies the pollution level informing unit 130 of the fine dust (S303) according to the measurement value transmitted from the sensor unit 120, or displays the corresponding fine dust pollution degree in the vehicle interior.

In step S303 described above, the contamination degree notification unit 130 including the CPU IC (that is, the programmable IC (for example, ATmega8)) that has been programmed executes the measurement value output from the fine dust sensor unit 120 And may display the contamination value of the fine dust corresponding to the read measurement value through the LED or the LCD or may transmit it to the contamination state management unit 140 or the remote device unit 150.

In one embodiment, when the pollution level informing unit 130 uses the CPU IC programmed in the C language, the pollution level informing unit 130 may measure the measurement value (i.e., the measured value) output from the fine dust sensor unit 120 through the internal PWM control, DUST OUT) and store the read measured value in the RAM.

In one embodiment, the pollution level informing unit 130 can display the pollution degree value of the fine dust classified by the LED color, that is, display the pollution degree value of the fine dust in a plurality of stages (for example, As shown in FIG. In addition, the pollution level informing unit 130 may further display the LED display step in detail.

For example, a green LED can be displayed (lower level display) in a good condition with an indoor air pollution degree of 0 to 40%. If indoor air pollution degree of 40 ~ 70% is necessary and ventilation is necessary and check of air conditioner filter and air filter is necessary, yellow LED can be displayed (middle stage display). It is possible to unconditionally ventilate the room with more than 70% of the indoor air pollution degree, and to display the red LED (phase step display) when it is necessary to check replacement of all the filters, clean the interior of the vehicle and check the outside air.

The power supplied in the above-described step S301 is input to the contamination state management unit 140 and the measurement value (or the fine dust pollution degree value transmitted in the above-described step S303) transmitted in the above-described step S302 is supplied to the contamination state management unit 140 The pollution state management unit 140 controls the pollution degree management unit 140 to measure the pollution degree of the vehicle interior according to the measured value transmitted from the fine dust sensor unit 120 (S304). A warning according to the management result is displayed or output by voice to notify the driver or the passenger of the replacement of the filter, the inside of the vehicle, and the like (S305).

In performing the contamination management of the interior of the vehicle in the above-described step S304, the contamination state management unit 140 drives the dust removing filter unit to purify the air inside the vehicle in the middle stage display, And the state of the air conditioner filter and the air filter can be checked by driving the filter checking device. Further, in the case of the phase step display, the vehicle air conditioning system may be driven to ventilate, or the external dust sensor device may be driven to measure the pollution degree of the outside air, or to perform the above-described step S305.

In the above-described step S304, the dust removing filter device can be driven in accordance with the drive control of the contamination state managing section 140 to filter air in the inside of the vehicle.

In the above-described step S304, the vehicle air conditioning system may control the suction and discharge lines of the vehicle in accordance with the drive control of the contamination state management unit 140 to operate the air in the vehicle room in the recirculation mode or the outside air suction mode. For example, in the case of the recirculation mode, no external air is introduced into the interior space of the vehicle, and the air in the interior space of the vehicle is recirculated. On the other hand, in the case of the external air intake mode, Allowing the outside air to enter the space.

In step S304, the filter check device checks the condition of the air conditioner filter (or the air filter) according to the drive control of the pollution condition managing unit 140. At this time, And the sensor detects the amount of the betaine passing through the air conditioner filter (or the air filter) to measure the fine dust accumulated in the filter, and notifies the contamination state managing unit 140 of the fine dust contamination value of the measured filter You can give. Accordingly, the contamination state management unit 140 informs the driver or the passenger of the replacement of the air conditioner filter (or the air filter) according to the value of the fine dust pollution degree measured by the filter inspecting apparatus.

In the above-described step S304, the external dust sensor device may measure the contamination degree of the outside air according to the drive control of the contamination state management section 140 and inform the contamination state management section 140 of the measured outside air pollution degree value . At this time, the pollution state management unit 140 can control the driving of the vehicle air conditioning system (i.e., the recirculation mode, the outside air intake mode, and the like) according to the value of the external air pollution degree measured by the external dust sensor device.

The power supplied in step S301 is input to the remote device unit 150. The contamination management result of the vehicle interior performed in step S304 is transmitted to the remote device unit 150, Informs the driver or passenger of the personal terminal (for example, a smart phone or the like) of the warning, the filter replacement, and the inside of the vehicle according to the pollution management result performed by the pollution state management unit 140.

In one embodiment, the power supplied in step S301 described above is input to the remote device unit 150, and the measurement value (or the fine dust contamination value value transmitted in step S303) transmitted in the above-described step S302 is The remote device unit 150 receives the measurement value transmitted from the fine dust sensor unit 120 or the value of the fine dust contamination degree transmitted from the pollution level notification unit 130 to the driver To the occupant's personal terminal. The remote device unit 150 receives the remote control command from the personal terminal installed with the app for performing the indoor pollution management of the vehicle and transfers the remote control command to the pollution state management unit 140. The pollution state management unit 140 transmits The driver or the occupant can remotely control the in-vehicle indoor fine dust measuring apparatus 100 using his / her personal terminal by managing the contamination of the vehicle interior corresponding to the received remote control command.

The embodiments of the present invention are not limited to the above-described apparatuses and / or methods, but may be implemented by a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded, And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: Indoor fine dust measuring device for vehicles
110: Power supply
120: Fine dust sensor unit
130: Pollution degree notification section
140:
150: remote unit

Claims (10)

A fine dust sensor unit for measuring fine dust in a vehicle interior;
A pollution degree notification unit for displaying or audibly outputting a fine dust pollution degree in a vehicle interior according to a measurement value transmitted from the fine dust sensor unit;
The control unit controls the contamination of the interior of the vehicle corresponding to the measured value transmitted from the fine dust sensor unit or the fine dust pollution degree value transmitted from the pollution level notification unit, A pollution state management unit for informing the driver or the passenger; And
And a power supply unit for converting the power supplied to the fine dust sensor unit, the pollution level notification unit, and the pollution state management unit into a power source and supplying the power.
The micro-dust sensor according to claim 1,
And a bypass capacitor connected in parallel to the output part for removing noise of the measured value.
The micro-dust sensor according to claim 1,
frame;
A plurality of filters carried within the frame;
An intake port formed at an upper portion of the frame;
An outlet formed at a lower portion of the frame;
A vacuum pump for allowing indoor air of the vehicle to pass through the intake port and pass through the filter to the exhaust port;
A flow regulator for regulating the amount of air in the vehicle;
A light source for irradiating the beta rays with the filter;
A sensor for measuring the amount of fine dust passing through the filter to measure fine dust in the inside of the vehicle;
A filter hull for dusting the dust accumulated in the filter;
A dust collector for dust collected from the filter hairs; And
And a filter feeder for feeding the new filter after the sensor measures the fine dust and transferring the previous filter to the filter hairs.
The method according to claim 1,
The dust removal filter device is driven according to the measured value transmitted from the fine dust sensor unit or the fine dust pollution degree value transmitted from the pollution level notification unit to purify air inside the vehicle or to drive the vehicle air conditioning system to ventilate , The state of the air conditioner filter and the air filter is checked by driving the filter check device, or the external dust sensor device is driven to measure the pollution degree of the outside air.
The method according to claim 1,
And a remote device unit for informing the driver or the passenger of the occupant of the warning, the replacement of the filter, and the cleaning of the vehicle according to the contamination management result of the interior of the vehicle, which is performed by the contamination state management unit, The indoor fine dust measuring device for a vehicle.
6. The apparatus of claim 5,
From a personal terminal equipped with an app for notifying a personal terminal of a driver or a passenger of a measured value transmitted from the fine dust sensor unit or a fine dust pollution degree value transmitted from the pollution level notification unit, And transmits the remote control command to the contamination state management unit to manage contamination of the vehicle interior corresponding to the remote control command.
The power supply unit according to claim 5,
A capacitor connected in parallel to the input portion or a power source discharged from the rechargeable battery in order to stably charge the internal rechargeable battery by receiving the vehicle power supplied from the generator or the battery of the vehicle or the solar battery power supplied from the solar battery power supply, And a capacitor connected in parallel to an output portion to stably supply the fine dust sensor portion, the contamination degree notification portion, the contamination state management portion, and the remote device portion.
Converting the power supply unit into a power source necessary for the fine dust sensor unit, the pollution level notification unit, and the pollution state management unit;
A fine dust sensor unit for measuring fine dust in a vehicle interior;
A step of displaying a degree of fine dust on the inside of the vehicle corresponding to the measured value of the fine dust or outputting a sound according to the measured value of the fine dust;
Managing pollution of the interior of the vehicle corresponding to the measured value of the fine dust or the value of the fine dust pollution; And
And the pollution state management unit notifies the driver or the passenger of the warning, the replacement of the filter, and the cleaning of the interior of the vehicle according to the management result.
9. The method of claim 8,
The filter feeder transporting the filter to fix the filter;
Operating the vacuum pump to introduce indoor air through the intake port and passing through the filter to the exhaust port;
Adjusting the amount of air in the vehicle through which the flow rate regulator flows through the intake port and allowing air in the vehicle to flow in the vehicle for a predetermined period of time to accumulate fine dust in the interior of the vehicle;
Irradiating the filter with a beta ray from the light source after stopping the operation of the vacuum pump;
Measuring the amount of fine dust passing through the filter and measuring fine dust in the interior of the vehicle;
Allowing the filter feeder to transfer the new filter while transferring the previous filter to the filter hull; And
And a step of dusting the dust accumulated on the filter by the filter hull and collecting the dust that has been picked up by the dust collector.
10. The method of claim 9,
Filtering the air in the interior of the vehicle according to driving control of the contaminated state management unit;
Ventilating the vehicle interior air in a recirculation mode or an outside air intake mode by controlling the intake and exhaust lines of the vehicle in accordance with drive control of the contaminated state management unit by the vehicle air conditioning system;
The filter check apparatus checks the condition of the air conditioner filter or the air filter according to the drive control of the pollution state management unit and informs the driver or the passenger of the replacement of the air conditioner filter or the air filter according to the value of the fine dust pollution degree of the checked filter A step; And
The external dust sensor device measures the pollution degree of the outside air according to the drive control of the pollution state management section and controls the driving of the vehicle air conditioning system according to the measured value of the outside air pollution degree. Method of operating indoor fine dust measuring device.
KR1020140017639A 2014-02-17 2014-02-17 Particulates measuring apparatus in vehicles and operating method thereof KR20150096845A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180062596A (en) 2016-12-01 2018-06-11 현대자동차주식회사 Moisture inflow prevent device of vehicle dust sensor
WO2020032317A1 (en) * 2018-08-07 2020-02-13 (주)아이준 Fine dust purification device using moving means
KR20200076246A (en) * 2018-12-19 2020-06-29 소치재 A Safety System For A Children's School Bus
KR20210147608A (en) 2020-05-29 2021-12-07 현대자동차주식회사 Cabin air quatlity sensing system for vehicle and operating method for the same
KR20220014930A (en) * 2020-07-29 2022-02-08 주식회사 엔아이티코리아 Rail moving device including an electric dust collecting module
KR20220058057A (en) 2020-10-30 2022-05-09 주식회사 루프트센스 Monitoring system and methods for replacing fine dust filters for vehicles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180062596A (en) 2016-12-01 2018-06-11 현대자동차주식회사 Moisture inflow prevent device of vehicle dust sensor
WO2020032317A1 (en) * 2018-08-07 2020-02-13 (주)아이준 Fine dust purification device using moving means
KR20200016442A (en) * 2018-08-07 2020-02-17 (주)아이준 Apparatus for cleaning particulate in air using vehicle
KR20200076246A (en) * 2018-12-19 2020-06-29 소치재 A Safety System For A Children's School Bus
KR20210147608A (en) 2020-05-29 2021-12-07 현대자동차주식회사 Cabin air quatlity sensing system for vehicle and operating method for the same
US11604130B2 (en) 2020-05-29 2023-03-14 Hyundai Motor Company Cabin air state sensing system for a vehicle and operation method thereof
KR20220014930A (en) * 2020-07-29 2022-02-08 주식회사 엔아이티코리아 Rail moving device including an electric dust collecting module
KR20220058057A (en) 2020-10-30 2022-05-09 주식회사 루프트센스 Monitoring system and methods for replacing fine dust filters for vehicles

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