A method for testing the pollution purification capability of a whole vehicle

Abstract

The present invention provides a method for testing the interior pollution purification capability of a whole vehicle, which belongs to the field of automobile purification technology. The testing method is not limited to being performed in four testing modes. The whole vehicle barrier capability testing mode is used to measure the purification capability of a vehicle to be tested under a first working condition, and obtain a first purification value; the whole vehicle particle pollutant purification capability testing mode under normal temperature is used to measure the purification capability under a second working condition, and obtain a second purification value; the whole vehicle particle pollutant purification capability testing mode under high temperature and high humidity is used to measure the purification capability under a third working condition, and obtain a third purification value; the whole vehicle toxic and harmful gas purification capability testing mode is used to measure the purification capability under a fourth working condition, and obtain a fourth purification value; and obtain a total purification value, and then obtain a purification grade used to reflect the whole vehicle purification capability of the vehicle to be tested. Compared with the prior art, the testing method is more unified.

Description

Technical Field

[0001] The invention relates to the technical field of automobile purification, and in particular to a method for testing the pollution purification capability of a whole vehicle. Background Art

[0002] In the prior art, the vehicle's ability to block external particulate matter and its ability to purify internal particulate matter are often tested during the vehicle development stage. In the prior art, when testing the vehicle's purification ability, only the vehicle's purification ability under the influence of external climatic factors is considered. However, this testing method of the prior art is inaccurate, which makes the accuracy of the final test result low. The purification of in-vehicle air pollution mainly focuses on two aspects: internal pollutants and external pollutants entering the vehicle. By using the purification function of the whole vehicle, pollutants that are about to enter or have entered the vehicle can be purified, thereby improving the air quality in the vehicle.

[0003] It can be seen from this that the variety of air pollutants in cars has led to diverse research and development directions for the active in-car air purification capabilities of automobile products, and the purification objects of automobile products are different; secondly, the description of the purification effect of automobile products often lacks an explanation of the standard basis and actual usage conditions, and the authenticity is questionable. The above two points make it difficult to measure the in-car pollution purification capabilities of automobile products, and it is difficult to evaluate the control effect of purification technology on in-car air quality. The development of purification technology is relatively chaotic. The fundamental reason for these problems is that the automobile industry has not yet made a unified definition of the in-car pollution purification capabilities of the entire vehicle. The existing in-car pollution purification capability evaluation methods vary, and none of them can be combined with the actual usage conditions of the vehicle. Therefore, there are limitations in the testing and evaluation of the in-car pollution purification capabilities of the entire vehicle. Summary of the invention

[0004] The purpose of the present invention is to provide a method for testing the pollution purification capability of a vehicle interior in view of the above problems, comprising:

[0005] It is used to evaluate the in-vehicle pollution purification capability of the vehicle to be tested in the test system. The test method includes but is not limited to four test modes, namely, the whole vehicle barrier capability test mode, the whole vehicle particle pollutant purification capability test mode under normal temperature, the whole vehicle particle pollutant purification capability test mode under high temperature and high humidity, and the whole vehicle toxic and harmful gas purification capability test mode;

[0006] The vehicle barrier capacity test mode is used to measure the purification capacity of the vehicle under test in a first working condition to obtain a first purification value;

[0007] The whole vehicle particulate pollutant purification capacity test mode under normal temperature is used to measure the purification capacity of the vehicle under test in the second working condition to obtain a second purification value;

[0008] The whole vehicle particulate pollutant purification capacity test mode under high temperature and high humidity conditions is used to measure the purification capacity of the vehicle under test in the third working condition to obtain the third purification value;

[0009] The vehicle toxic and harmful gas purification capacity test mode is used to measure the purification capacity of the vehicle under test in the fourth working condition to obtain the fourth purification value;

[0010] Calculating a total purification value of the vehicle to be tested according to the first purification value, the second purification value, the third purification value, and the fourth purification value;

[0011] The purification level of the vehicle to be tested is obtained according to the total purification value; the purification level is used to reflect the whole vehicle purification capacity of the vehicle to be tested.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] A test method for the interior pollution purification capability of a whole vehicle is provided, which is used to evaluate the interior pollution purification capability of the vehicle to be tested, including: a whole vehicle barrier capability test mode, a whole vehicle particle pollutant purification capability test mode under normal temperature, a whole vehicle particle pollutant purification capability test mode under high temperature and high humidity conditions, and a whole vehicle toxic and harmful gas purification capability test mode. The above four modes obtain four purification values ​​respectively, and finally calculate the total purification value used to reflect the whole vehicle purification capability of the vehicle to be tested. This method can take into account the actual pollution conditions of the vehicle to be tested in various scenarios during use, and can comprehensively and accurately calculate the actual purification capability of the whole vehicle, filling the gap in the pollutant purification capability test method of the vehicle to be tested, and can help users better understand the purification capability of the whole vehicle, so as to make a choice of vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A general overview diagram of a method for testing the pollution purification capability of a vehicle provided by an embodiment of the present invention;

[0015] Figure 2 A flow chart in a vehicle barrier capability test mode provided by an embodiment of the present invention;

[0016] Figure 3 A flow chart of a vehicle particle pollution purification capability test mode under normal temperature and humidity conditions provided by an embodiment of the present invention;

[0017] Figure 4 A flow chart of a vehicle particle pollution purification capability test mode under high temperature and high humidity conditions provided by an embodiment of the present invention;

[0018] Figure 5 A flow chart provided in an embodiment of the present invention when the vehicle is in a toxic and harmful gas purification capability test mode;

[0019] Figure 6 A structural diagram of a vehicle test cabin provided by an embodiment of the present invention;

[0020] Figure 7 A structural diagram of placing a filtration system in an environmental chamber provided in an embodiment of the present invention;

[0021] Figure 8 A structural diagram of injecting automobile exhaust gas into a vehicle test chamber is provided for an embodiment of the present invention;

[0022] Fig. 9 A structural diagram of injecting industrial waste gas into a vehicle test chamber provided by an embodiment of the present invention;

[0023] Among them: 1. Vehicle test chamber; 2. Stirring fan; 3. Circulation fan; 4. Pollution source generator; 5. Environmental chamber; 6. Filtration system; 7. Test vehicle; 8. Automobile exhaust; 9. Industrial waste gas pollution source; 10. Industrial waste gas; 11. Vehicle to be tested. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0025] In the prior art, the vehicle's ability to block particles outside the vehicle and its ability to purify particles inside the vehicle are often tested during the vehicle development stage. When testing the vehicle's purification ability, only the vehicle's purification ability under the influence of external climate factors is considered, and the test data is incomplete, resulting in low accuracy of the final test results.

[0026] The purification of air pollution in the car mainly targets two aspects: internal pollutants and external pollutants. By using the purification function of the whole vehicle, the pollutants that are about to enter or have entered the car can be purified to improve the air quality in the car.

[0027] The key to evaluating the pollutant purification capacity of a vehicle is the following aspects:

[0028] (1) Pollutant removal efficiency: The key to evaluating the purification capacity of a vehicle is to detect and evaluate the removal efficiency of toxic and harmful gases in the air inside the vehicle. By measuring the concentration changes of pollutants in the air inside the vehicle, the effectiveness of the vehicle purification system can be evaluated;

[0029] (2) Filter performance: Key indicators for evaluating filters include particle and gas filtration efficiency, service life, and maintenance cost;

[0030] (3) System stability and reliability: When evaluating the purification capacity of a vehicle, it is also necessary to consider the stability of the system and its reliability under multiple pollution scenarios.

[0031] Requirements for the vehicle 11 to be tested in the embodiment of the present invention:

[0032] Passenger car, a car used to carry passengers and carry-on luggage or temporary items, with a maximum of 9 seats including the driver's seat;

[0033] The vehicle itself is equipped with an active air purification system and has not been disassembled or modified except for replacing the filter element;

[0034] The active air purification system works normally and the filter element can be replaced;

[0035] The air conditioning system can work normally and manually switch between internal and external circulation modes.

[0036] Requirements for the test system in the embodiments of the present invention:

[0037] The vehicle test chamber 1 can accommodate the vehicle 11 to be tested, and the clearance between the vehicle 11 to be tested and the vehicle test chamber 1 is at least 1.5m, and the clearance between the top of the vehicle 11 to be tested and the vehicle test chamber 1 is at least 2m.

[0038] The vehicle test chamber 1 is equipped with an air purification device and a constant temperature and humidity device;

[0039] The vehicle test chamber 1 is equipped with lighting equipment - movable irradiation surface light panel (1000W);

[0040] The vehicle test chamber 1 instrument can perform PM10 detection, PM2.5 detection, CO / SO2 / NO2 detection, and TVOC (a general term for volatile organic compounds) detection;

[0041] The vehicle test chamber 1 is equipped with a device for generating or introducing particulate pollutants or gaseous pollutants, a circulating fan and a stirring fan;

[0042] There are 5 recording points inside the vehicle 11 to be tested, and 6 recording points outside the vehicle 11 to be tested;

[0043] The recording points inside the car are the maximum number of passengers (at least 5), and the detection points are located within the range of the passengers' heads when they are sitting normally; the external recording points are located at the front and rear of the car, the left front door, the left rear door, the right front door, and the right rear door.

[0044] The vehicle 11 to be tested has a first state and a second state: in the first state, the doors, windows, rear trunk, and sunroof of the vehicle 11 to be tested are all in an open state; in the second state, the doors, windows, rear trunk, and sunroof of the vehicle 11 to be tested are all in a closed state.

[0045] The first preset condition is: the temperature is within the first temperature range (23±5°C); the relative humidity is within the first relative humidity range (50%±10%RH), and the concentration of the particle pollutants is within the first concentration range;

[0046] The second preset condition is: the temperature is within the first temperature range, the relative humidity is within the first relative humidity range, the concentration of particulate pollutants is within the first concentration range, and the TVOC concentration is less than or equal to the preset concentration (200 μg / m 3 ).

[0047] The first concentration range of particulate pollutants is: the concentration of PM10 is less than or equal to 50μg / m 3 , PM2.5 concentration is less than or equal to 35μg / m 3 ; The second concentration range is: the concentration of PM10 and PM2.5 are both maintained at 2500 500 μg / m 3 .

[0048] The first preset duration is 20 minutes; the second preset duration is 15 minutes.

[0049] The present invention provides a method for testing the interior pollution purification capability of a whole vehicle, which is used to evaluate the interior pollution purification capability of a vehicle to be tested 11 in a test system. The testing method is not limited to the following four testing modes: Figure 1 As shown, the test modes include:

[0050] 1. Vehicle barrier capability test mode;

[0051] The test system includes a whole vehicle test cabin 1, in which a vehicle to be tested 11, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested 11; the whole vehicle barrier capacity test mode is used to measure the purification capacity of the vehicle to be tested 11 under a first working condition and obtain a first purification value.

[0052] like Figure 2 As shown, the steps in the vehicle barrier capability test mode include:

[0053] Turn on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan, so that the vehicle test chamber 1 reaches a first preset condition, wherein the first preset condition is that the temperature is within a first temperature range, the relative humidity is within a first relative humidity range, and the particulate pollutants are within a first concentration range;

[0054] The vehicle to be tested 11 is placed in a first state and is stationary in the vehicle test chamber 1 . After the accumulated time reaches a first preset time, the vehicle to be tested 11 is placed in a second state.

[0055] After the vehicle 11 to be tested maintains the second state for a second preset time, the concentration value of the particulate pollutants in the vehicle 11 to be tested for 5 minutes is obtained to obtain a first average concentration value;

[0056] Turn off the air purification device and the constant temperature and humidity device, inject specific particulate pollutants (for example, PM10 and PM2.5) into the vehicle test chamber 1, stabilize it to the second concentration range, and maintain it for a third preset time;

[0057] Obtaining the concentration value of the particulate pollutants in the vehicle to be tested 11 for 5 minutes to obtain a second average concentration value;

[0058] The first purification value is calculated according to the first average concentration value and the second average concentration value.

[0059] Specifically, in this embodiment, in the vehicle barrier capability test mode, the test steps are:

[0060] Turn on the air purification device, constant temperature and humidity device, stirring fan and circulating fan to make the whole vehicle test chamber 1 reach the first preset condition, and place the vehicle to be tested 11 in the whole vehicle test chamber 1 that has reached the first preset condition, and keep it for the first preset time. Put the vehicle to be tested 11 in the second state and keep it for the second preset time, which is 15 minutes. Obtain the concentration value of the particulate pollutants in the vehicle to be tested 11 for 5 minutes to obtain the first average concentration value. When calculating the first average concentration value, it is necessary to obtain all the first concentration values ​​of all the recording points in the vehicle to be tested 11 within 5 minutes. , where the minimum first concentration value is , the first maximum concentration is , the first average concentration value The calculation formula is as follows:

[0061]

[0062] In the formula: Here and after Both represent the number of all recording points in the vehicle 11 to be tested; x here and in the following text represents 2.5 or 10; n, i are integers greater than 0, n or i=1, 2, 3...

[0063] Turn off the air purification device and the constant temperature and humidity device, and inject specific particulate pollutants into the vehicle test cabin until the concentration of the particulate pollutants increases and stabilizes to the second concentration range, so that the vehicle to be tested is in the first working condition and maintained for a third preset time, which is 120 minutes. Obtain the concentration value of the particulate pollutants in the vehicle to be tested for 5 minutes to obtain the second average concentration value. When calculating the second average concentration value, it is necessary to obtain all the second concentration values ​​of all recording points in the vehicle to be tested within 5 minutes. , where the minimum second concentration value is The second maximum concentration is , the second average concentration value The calculation formula is as follows:

[0064]

[0065] Where: Represents the number of all recording points in the vehicle 11 to be tested.

[0066] According to the first average concentration value and the second average concentration value, a first purification value is calculated. The calculation formula of the first purification value is as follows:

[0067]

[0068] in, is the first purification value, include They represent the corresponding purification values ​​under PM2.5 and PM10 conditions respectively.

[0069] 2. Test mode of vehicle particle pollution purification capability at normal temperature

[0070] The whole vehicle particulate pollutant purification capacity simulation test mode under normal temperature is used to measure the purification capacity of the vehicle 11 under the second working condition to obtain a second purification value. The normal temperature state refers to a temperature less than or equal to 28°C and greater than or equal to 20°C; relative humidity ≤ 60%RH.

[0071] For further reference, Figure 3 The test system includes a vehicle test cabin 1, in which a vehicle to be tested 11, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed. A purification system and an air conditioner are also provided in the vehicle to be tested 11. The purification system has a working mode and a non-working mode. The working modes of the air conditioner include external circulation and internal circulation. At least two recording points for recording concentration are provided inside and outside the vehicle to be tested 11; the second working condition includes working condition A, working condition B, working condition C and working condition D, and the test steps include:

[0072] The vehicle to be tested 11 is placed in a first state, in which the doors, windows, trunk, and sunroof of the vehicle to be tested 11 are all in an open state; the air purification device, constant temperature and humidity device, stirring fan, and circulating fan are turned on to make the vehicle test chamber 1 reach the first preset condition, and the vehicle to be tested 11 is placed in the vehicle test chamber 1 for a cumulative time that reaches the first preset time;

[0073] According to the A condition, the B condition, the C condition and the D condition, in accordance with the set sequence, the state of the vehicle to be tested 11, the start and stop of the air purification device, the start and stop of the constant temperature and humidity device, the start and stop of the purification system, the selection of the air conditioning working mode, and the type of the injected particulate pollutants are adjusted;

[0074] The concentration values ​​of the particulate pollutants in the vehicle 11 to be tested and the vehicle test chamber 1 under each working condition are obtained respectively, and the purification values ​​corresponding to working conditions A, B, C and D are calculated and weighted summed to obtain a second purification value.

[0075] Next, the steps of measuring the vehicle 11 under the A working condition are specifically unfolded. The A working condition is used to simulate the circulating filtering ability of the dust particle pollution outside the vehicle:

[0076] The vehicle to be tested 11 is placed in the whole vehicle test cabin 1, so that the vehicle to be tested 11 is in the first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the whole vehicle test cabin 1 reach the first preset condition, and the vehicle to be tested 11 is placed in the whole vehicle test cabin 1, and is left to stand for a first preset time, which is 20 minutes in this embodiment; the air purification device and the constant temperature and humidity device are turned off to make the vehicle to be tested 11 in the second state, and the dust particle generator is started. When the concentrations of PM2.5 and PM10 of the dust particles in the whole vehicle test cabin 1 are detected to reach and stabilize in the second concentration range, the dust particle generator is turned off, and the purification system of the vehicle to be tested 11 is adjusted to the working mode, and the working mode of the air conditioner is adjusted to the external circulation, and is at the maximum power, and maintained for a fourth preset time, which is 100 minutes in this embodiment, to simulate the purification capacity of the vehicle to be tested 11 in an external sandstorm environment;

[0077] Obtain the concentration value of dust particles at all recording points outside the vehicle 11 to be tested for 10 minutes, and record it as the third concentration value , where the minimum concentration is The maximum concentration is , the third average concentration value The calculation formula is as follows:

[0078]

[0079] At the same time, obtain the concentration value of dust particles at all recording points in the vehicle to be tested for 10 minutes, which is recorded as the fourth concentration value , where the minimum concentration is The maximum concentration is , the fourth average concentration value The calculation formula is as follows:

[0080]

[0081] According to the third average concentration value and the fourth average concentration value, the purification value corresponding to the A working condition is calculated. The calculation formula is as follows, where Indicates that, Indicates or.

[0082]

[0083] After the A-condition test is completed, the B-condition test is carried out. In the B-condition, the exterior of the test vehicle is in an environment with high oily particle pollutants, which is used to simulate the vehicle purification capacity in the oil fume exhaust environment. The specific steps are as follows:

[0084] The vehicle to be tested is placed in the whole vehicle test cabin 1, so that the vehicle to be tested is in the first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the whole vehicle test cabin 1 reach the first preset condition, the vehicle to be tested is placed in the whole vehicle test cabin 1, and it is left to stand for a first preset time, the air purification device and the constant temperature and humidity device are turned off to make the vehicle to be tested in the second state, the oil fume particle generator outside the whole vehicle test cabin 1 is started, and oil fume particles are injected into the whole vehicle test cabin 1. When the concentrations of oil fume particles PM2.5 and PM10 in the whole vehicle test cabin 1 reach and stabilize in the second concentration range, the oil fume particle generator is turned off, the purification system of the vehicle to be tested is adjusted to the working mode, the working mode of the air conditioner is adjusted to the external circulation, and it is at maximum power, and maintained for a fourth preset time. The fourth preset time is 100 minutes in this embodiment, which is used to simulate the purification ability of the vehicle to be tested in the smoke exhaust environment.

[0085] Obtain the concentration value of oil smoke particles at all recording points outside the vehicle under test for 10 minutes, and record it as the fifth concentration value , where the minimum concentration is The maximum concentration is , the fifth average concentration value The calculation formula is as follows:

[0086]

[0087] At the same time, obtain the concentration values ​​of oil smoke particles at all recording points in the vehicle under test at different times for 10 minutes, and record them as the sixth concentration value , where the minimum concentration is The maximum concentration is , the sixth average concentration value The calculation formula is as follows:

[0088]

[0089] According to the fifth average concentration value and the sixth average concentration value, the purification value corresponding to the B working condition is calculated. The calculation formula is as follows:

[0090]

[0091] Specifically, in this embodiment, the test steps are carried out when the vehicle to be tested is in the C condition, and the C condition is used to simulate the ability of the test vehicle to use clean air through external circulation and reduce the pollution inside the vehicle:

[0092] After the vehicle enters the whole vehicle test chamber, the vehicle to be tested is placed in the first state, and the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the whole vehicle test chamber 1 reach the first preset condition, and the vehicle to be tested is left to stand in the whole vehicle test chamber 1 for a first preset time, the air purification device and the constant temperature and humidity device are turned off, the oil fume generator in the whole vehicle test chamber 1 is started, and specific particulate pollutants are injected into the whole vehicle test chamber 1. In the C working condition, the specific particulate pollutants are highly polluted oily particles. The vehicle to be tested is still in the first state, and the stirring fan and the circulating fan continue to work. When the concentrations of oil fume particles PM2.5 and PM10 in the whole vehicle test chamber 1 reach and stabilize in the second concentration range, the oil fume generator is turned off, and the vehicle to be tested 11 is in the second state, the purification system is in working mode, the working mode of the air conditioner is adjusted to external circulation, and is at maximum power, and maintained for a fifth preset time. The fifth preset time is 30 minutes in this embodiment, which is used to simulate the internal pollution of the vehicle to be tested 11 and the purification capacity of the external circulation pollutants.

[0093] Then, a second type of concentration change test is performed: the test time is 30 minutes, and the concentrations of PM10 and PM2.5 inside and outside the vehicle 11 to be tested are recorded in real time.

[0094] Obtain the concentration value of highly polluted oily particles at all recording points outside the vehicle 11 to be tested for 10 minutes, and record it as the seventh concentration value , where the minimum concentration is The maximum concentration is , the seventh average concentration value The calculation formula is as follows:

[0095]

[0096] At the same time, the concentration values ​​of highly polluted oily particles at all recording points in the vehicle 11 to be tested for 10 minutes are obtained and recorded as the eighth concentration value. , where the minimum concentration is The maximum concentration is , the eighth average concentration value The calculation formula is as follows:

[0097]

[0098] According to the seventh average concentration value and the eighth average concentration value, calculate the purification value corresponding to the C condition , the calculation formula is as follows:

[0099]

[0100] Specifically, in this embodiment, the test steps are carried out when the vehicle 11 to be tested is in the D working condition, and the D working condition is used to simulate the ability of the internal circulation filtration of the test vehicle:

[0101] After the vehicle enters the whole vehicle test chamber, the vehicle to be tested 11 is placed in the first state, and the air purification device, constant temperature and humidity device, stirring fan and circulating fan are turned on to make the whole vehicle test chamber 1 reach the first preset condition, and the vehicle to be tested 11 is left stationary in the whole vehicle test chamber 1 for a first preset time. When the cumulative time reaches the first preset time, the air purification device and the constant temperature and humidity device are turned off, the oil fume generator in the whole vehicle test chamber 1 is started, and oil fume particles are injected into the whole vehicle test chamber 1. When the concentrations of oil fume particles PM2.5 and PM10 in the whole vehicle test chamber 1 reach and stabilize in the second concentration range, the oil fume generator is turned off to put the vehicle to be tested 11 in the second state, the working mode of the air conditioner is adjusted to the internal circulation, and is at maximum power, and maintained for the fifth preset time. The fifth preset time is 30 minutes in this embodiment.

[0102] Obtain the concentration value of oil smoke particles at all recording points outside the vehicle 11 to be tested for 10 minutes, and record it as the ninth concentration value , where the minimum concentration is The maximum concentration is , the ninth average concentration value The calculation formula is as follows:

[0103]

[0104] At the same time, the concentration values ​​of oil smoke particles at all recording points in the vehicle 11 to be tested for 10 minutes are obtained and recorded as the tenth concentration value. , where the minimum concentration is The maximum concentration is , the tenth average concentration value The calculation formula is as follows:

[0105]

[0106] According to the ninth and tenth average concentration values, calculate the purification value corresponding to the D condition , the calculation formula is as follows:

[0107]

[0108] According to the purification value corresponding to working condition A , the purification value corresponding to condition B , the purification value corresponding to the C condition , the purification value corresponding to the D condition , calculate the second purification value , the calculation formula is as follows:

[0109]

[0110] III. Test mode for vehicle particle pollution purification capability under high temperature and high humidity conditions

[0111] The vehicle particle pollution purification capability test mode under high temperature and high humidity conditions is used to measure the purification capability of the vehicle 11 under the third working condition to obtain a third purification value. The high temperature and high humidity conditions refer to a temperature of more than 28°C and a relative humidity of more than 60%RH.

[0112] For further reference, Figure 4 The test system includes a vehicle test chamber 1 and an environmental chamber 5 arranged outside the chamber, the environmental chamber 5 is used to create a preset environment, the vehicle to be tested 11, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed in the vehicle to be tested chamber 1, a purification system and an air conditioner are also arranged in the vehicle to be tested 11, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, at least two recording points for recording concentration are arranged inside and outside the vehicle to be tested 11; the third working condition includes E working condition, F working condition, G working condition and H working condition, and the test steps include:

[0113] refer to Figure 7 , the filter system 6 of the vehicle to be tested 11 is placed in the environmental box 5, and after the filter system 6 is pre-treated, it is restored and installed in the vehicle to be tested 11; the filter system 6 pre-treatment process includes: setting the filter system 6 of the vehicle to be tested 11 in the environmental box 5, standing for 1 hour, and keeping the environmental box 5 at 23 5℃, relative humidity maintained at 50 10%RH; raise the temperature of environmental chamber 5 to 55°C and the relative humidity to 90%RH for 96 hours; lower the temperature of environmental chamber 5 to 23 5℃, relative humidity restored to 50 10% RH, maintain for 2 hours.

[0114] The vehicle to be tested 11 is placed in the vehicle test chamber 1, and the vehicle to be tested 11 is in a first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the vehicle test chamber 1 reaches the first preset condition, and the vehicle to be tested 11 is placed in the vehicle test chamber 1 for a cumulative time that reaches the first preset time;

[0115] According to the E condition, F condition, G condition and H condition, in accordance with the set sequence, the state of the vehicle to be tested 11, the start and stop of the air purification device, the start and stop of the constant temperature and humidity device, the start and stop of the purification system, the selection of the air conditioning working mode, and the type of injected particulate pollutants are adjusted;

[0116] The concentration values ​​corresponding to the particulate matter in the vehicle to be tested 11 and in the whole vehicle test chamber 1 under each working condition are obtained respectively, the purification values ​​corresponding to the E working condition, the F working condition, the G working condition and the H working condition are calculated and weighted summed, and the third purification value is calculated.

[0117] Next, the steps of measuring the vehicle 11 under the E working condition are specifically unfolded. The E working condition is used to simulate the circulating filtering capacity of the dust particle pollution outside the vehicle after pretreatment by the filter system 6:

[0118] Specifically, in this embodiment, the filter system 6 of the vehicle to be tested 11 is placed in the environmental box 5, and after the filter system 6 is pre-treated, the filter system 6 is placed back into the vehicle to be tested 11, and the vehicle to be tested 11 is placed in the vehicle test chamber 1, so that the vehicle to be tested is in the first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the vehicle test chamber 1 reach the first preset condition, and the vehicle to be tested is placed in the vehicle test chamber 1 and left to stand for a first preset time, which is 20 minutes in this embodiment; the air purification device is turned off .... The constant humidity device puts the vehicle to be tested in the second state, starts the dust particle generator, and when the concentrations of PM2.5 and PM10 of the dust particles in the whole vehicle test chamber 1 reach and stabilize in the second concentration range, turns off the dust particle generator, adjusts the purification system of the vehicle to be tested to the working mode, adjusts the working mode of the air conditioner to the external circulation, and is at maximum power, and maintains the fourth preset time. The fourth preset time is 100 minutes in this embodiment, which is used to simulate the internal cleaning of the vehicle to be tested under high temperature and high humidity, and the purification capacity of the vehicle to be tested in the external sandstorm environment;

[0119] Obtain the dust particle concentration value at all recording points outside the vehicle under test for 10 minutes, and record it as the eleventh concentration value , where the minimum concentration is The maximum concentration is , the eleventh average concentration value The calculation formula is as follows:

[0120]

[0121] At the same time, obtain the concentration value of dust particles at all recording points in the vehicle to be tested for 10 minutes, and record it as the twelfth concentration value , where the minimum concentration is The maximum concentration is , the twelfth average concentration value The calculation formula is as follows:

[0122]

[0123] According to the eleventh average concentration value and the twelfth average concentration value, calculate the purification value corresponding to the E condition , the calculation formula is as follows:

[0124]

[0125] Next, the steps of measuring the vehicle under test in the F working condition are specifically unfolded. The F working condition is used to simulate the vehicle purification capacity in the oil fume exhaust environment after the pretreatment of the filter system 6:

[0126] Specifically, in this embodiment, the filter system 6 of the vehicle to be tested is placed in the environmental box 5, and after the filter system 6 is pre-treated, the filter system 6 is placed back into the vehicle to be tested, and the vehicle to be tested is placed in the vehicle test chamber 1, so that the vehicle to be tested is in the first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the vehicle test chamber 1 reach the first preset condition, the vehicle to be tested is placed in the vehicle test chamber 1, and is left to stand for a first preset time, the air purification device and the constant temperature and humidity device are turned off to make the vehicle to be tested in the second state, and the vehicle test chamber 1 is started. The oil fume particle generator outside the test chamber 1 injects oil fume particles into the whole vehicle test chamber 1. When the concentrations of PM2.5 and PM10 of the oil fume particles in the whole vehicle test chamber 1 reach and stabilize in the second concentration range, the oil fume particle generator is turned off, the purification system of the vehicle to be tested is adjusted to the working mode, the working mode of the air conditioner is adjusted to the external circulation, and is at maximum power, and maintained for the fourth preset time. The fourth preset time is 100 minutes in this embodiment, which is used to simulate the internal cleaning of the vehicle to be tested and the purification capacity in the external smoke exhaust environment under high temperature and high humidity.

[0127] Obtain the concentration value of oil smoke particles at all recording points outside the vehicle under test for 10 minutes, and record it as the 13th concentration value , where the minimum concentration is The maximum concentration is , the thirteenth average concentration value The calculation formula is as follows:

[0128]

[0129] At the same time, obtain the concentration value of oil smoke particles at all recording points in the vehicle to be tested for 10 minutes, and record it as the fourteenth concentration value , where the minimum concentration is The maximum concentration is , the fourteenth average concentration value The calculation formula is as follows:

[0130]

[0131] According to the 13th and 14th average concentration values, calculate the purification value corresponding to the F condition , the calculation formula of the purification value corresponding to the F condition is as follows:

[0132]

[0133] The following are the specific steps for testing the purification capacity of the vehicle under the G working condition. The G working condition is used to simulate the ability of the vehicle to use clean air through external circulation and reduce the pollution inside the vehicle after pretreatment by the filtration system 6:

[0134] Specifically, in this embodiment, the filter system 6 of the vehicle to be tested is placed in the environmental chamber 5 and then restored and installed in the vehicle to be tested after the filter system 6 is pre-treated;

[0135] After the vehicle enters the whole vehicle test chamber, the vehicle to be tested is placed in the first state, and the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the whole vehicle test chamber 1 reach the first preset condition, and the vehicle to be tested is left to stand in the whole vehicle test chamber 1 for a first preset time, the air purification device and the constant temperature and humidity device are turned off, the oil fume generator in the whole vehicle test chamber 1 is started, and specific particulate pollutants are injected into the whole vehicle test chamber 1. In the G working condition, the specific particulate pollutants are highly polluted oily particles. The vehicle to be tested is still in the first state, and the stirring fan and the circulating fan continue to work. When the concentrations of oil fume particles PM2.5 and PM10 in the whole vehicle test chamber 1 are detected to reach and stabilize in the second concentration range, the oil fume generator is turned off, and the vehicle to be tested is placed in the second state, the purification system is placed in the working mode, the working mode of the air conditioner is adjusted to the external circulation, and is at the maximum power, and the fifth preset time is maintained. The fifth preset time is 30 minutes in this embodiment, which is used to simulate the internal pollution of the vehicle to be tested and the purification capacity of the external circulation pollutants.

[0136] Obtain the concentration value of highly polluted oily particles at all recording points outside the vehicle under test for 10 minutes, and record it as the fifteenth concentration value , where the minimum concentration is The maximum concentration is , the fifteenth average concentration value The calculation formula is as follows:

[0137]

[0138] At the same time, obtain the concentration value of highly polluted oily particles at all recording points in the vehicle to be tested for 10 minutes, and record it as the sixteenth concentration value , where the minimum concentration is The maximum concentration is , the sixteenth average concentration value The calculation formula is as follows:

[0139]

[0140] According to the 15th average concentration value and the 16th average concentration value, calculate the purification value corresponding to the G condition , the calculation formula is as follows:

[0141]

[0142] The following are the specific steps for testing the purification capacity of the vehicle under the H working condition. The H working condition is used to simulate the ability of the vehicle's internal circulation filtration after pretreatment by the filtration system 6:

[0143] Specifically, in this embodiment, the filter system 6 of the vehicle to be tested is placed in the environmental chamber 5 and then restored and installed in the vehicle to be tested after the filter system 6 is pre-treated;

[0144] After the vehicle enters the whole vehicle test cabin, the vehicle to be tested is placed in the first state, and the air purification device, constant temperature and humidity device, stirring fan and circulating fan are turned on to make the whole vehicle test cabin 1 reach the first preset condition, and the vehicle to be tested is left to stand in the whole vehicle test cabin 1 for the first preset time. When the cumulative time reaches the first preset time, the air purification device and the constant temperature and humidity device are turned off, the oil fume generator in the whole vehicle test cabin 1 is started, and oil fume particles are injected into the whole vehicle test cabin 1. When the concentrations of oil fume particles PM2.5 and PM10 in the whole vehicle test cabin 1 reach and stabilize in the second concentration range, the oil fume generator is turned off to put the vehicle to be tested in the second state, and the working mode of the air conditioner is adjusted to the internal circulation and is at maximum power, and maintained for the fifth preset time. The fifth preset time is 30 minutes in this embodiment, which is used to simulate the internal pollution of the vehicle to be tested and the internal circulation pollutant purification capacity.

[0145] Obtain the concentration value of oil smoke particles at all recording points outside the vehicle under test for 10 minutes, and record it as the seventeenth concentration value , where the minimum concentration is The maximum concentration is , the seventeenth average concentration value The calculation formula is as follows:

[0146]

[0147] At the same time, obtain the concentration value of oil smoke particles at all recording points in the vehicle to be tested for 10 minutes, and record it as the eighteenth concentration value , where the minimum concentration is The maximum concentration is , the eighteenth average concentration value The calculation formula is as follows:

[0148]

[0149] According to the 17th average concentration value and the 18th average concentration value, calculate the purification value corresponding to the H condition , the calculation formula is as follows:

[0150]

[0151] The third purification value is calculated based on the purification value corresponding to the E condition, the purification value corresponding to the F condition, the purification value corresponding to the G condition, and the purification value corresponding to the H condition. , the calculation formula is as follows:

[0152]

[0153] IV. Test mode for vehicle toxic and harmful gas purification capability

[0154] The vehicle toxic and harmful gas purification capacity test mode is used to measure the purification capacity of the vehicle under test in the fourth working condition to obtain a fourth purification value.

[0155] The whole vehicle toxic and harmful gas purification ability test mode includes a whole vehicle test cabin 1, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a stirring fan and a circulating fan are placed, and a purification system and an air conditioner are also provided in the vehicle to be tested. The purification system has a working mode and a non-working mode, and the working mode of the air conditioner includes an internal circulation and an external circulation. At least two recording points for recording concentrations are provided inside and outside the vehicle to be tested. The test system also includes a test vehicle 7 placed outside the whole vehicle test cabin 1. The test vehicle 7 needs to comply with the National VI emission regulations as a source of automobile exhaust 8. The fourth working condition includes multiple sub-working conditions, namely, working condition I, working condition J, working condition K and working condition L;

[0156] like Figure 5As shown, the test steps are as follows: the test system includes a whole vehicle test cabin 1, the whole vehicle test cabin 1 contains a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan, a purification system and an air conditioner are also provided in the vehicle to be tested, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; the fourth working condition includes working condition I, working condition J, working condition K and working condition L, and the test steps include:

[0157] The vehicle to be tested is placed in a first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on to make the whole vehicle test chamber 1 reach the second preset condition, and the vehicle to be tested is placed in the whole vehicle test chamber 1 for a cumulative time that reaches the first preset time;

[0158] According to the I condition, the J condition, the K condition and the L condition, in accordance with the set sequence, the state of the vehicle to be tested, the start and stop of the air purification device, the start and stop of the constant temperature and humidity device, the start and stop of the purification system, the selection of the air conditioning working mode, the selection of the injection of specific gas pollutants, the state of the vehicle to be tested includes the first state and the second state;

[0159] Obtain the gas concentration values ​​corresponding to the vehicle to be tested or the whole vehicle test chamber 1 under each working condition, calculate the purification values ​​corresponding to the I working condition, J working condition, K working condition and L working condition, and perform weighted summation to calculate the fourth purification value.

[0160] Next, the test steps of the vehicle purification capacity under the I working condition are carried out. The I working condition is used to simulate the vehicle's ability to purify automobile exhaust. The specific steps are as follows:

[0161] like Figure 8 As shown, the automobile exhaust gas 8 generated by the test vehicle 7 is discharged into the vehicle test chamber 1 through the stirring fan 2.

[0162] The vehicle to be tested is placed in the vehicle test chamber 1, so that the vehicle to be tested is in the first state, the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the vehicle test chamber 1 reaches the first preset condition, the vehicle to be tested is placed in the vehicle test chamber 1 and is kept still for the first preset time, the test vehicle 7 is connected to the rotating hub, which is used to connect the exhaust tail pipe of the test vehicle 7 and the vehicle test chamber, the air purification device and the constant temperature and humidity device are turned off, so that the vehicle to be tested is in the second state, and the test vehicle 7 is controlled to be at the highest speed, and the throttle is released after maintaining the sixth preset time, the sixth preset time in this embodiment is 10 minutes, the purification system of the vehicle to be tested is adjusted to the working mode, the working mode of the air conditioner is adjusted to the external circulation, and adjusted to the maximum power, the timing is started, and the seventh preset time is maintained, the seventh preset time in this embodiment is 10 minutes, to simulate the purification capacity of the whole vehicle under road exhaust, the harmful gases contained in the automobile exhaust 8 mainly include sulfur dioxide and nitrogen dioxide, which kind of harmful gas filtration efficiency needs to be tested, and the concentration of the harmful gas is controlled;

[0163] When the filtration efficiency of sulfur dioxide needs to be tested, obtain the sulfur dioxide concentration values ​​recorded at all recording points outside the vehicle to be tested for 10 minutes and record them as the nineteenth concentration value. , select the minimum value among all nineteenth concentration values , select the maximum value among all nineteenth concentration values , the nineteenth average concentration value The calculation formula is as follows:

[0164]

[0165] Obtain the sulfur dioxide concentration values ​​recorded at all recording points in the vehicle to be tested for 10 minutes and record them as the 20th concentration value , select the minimum value among all the twentieth concentration values , select the maximum value among all the twentieth concentration values , the 20th average concentration value The calculation formula is as follows:

[0166]

[0167] When the filtration efficiency of nitrogen dioxide needs to be tested, obtain the nitrogen dioxide concentration values ​​recorded at all recording points outside the vehicle to be tested for 10 minutes and record them as the 21st concentration value. , select the minimum value among all the 21st concentration values , select the maximum value among all the 21st concentration values , the twenty-first average concentration value The calculation formula is as follows:

[0168]

[0169] At the same time, obtain the nitrogen dioxide concentration value of all recording points in the vehicle to be tested for 10 minutes, and record it as the 22nd concentration value , select the minimum value among all the 22nd concentration values , select the maximum value among all the 22nd concentration values , the 22nd average concentration value The calculation formula is as follows:

[0170]

[0171] Then the purification value corresponding to condition I is The calculation formula is as follows:

[0172]

[0173] like Figure 5-6 As shown, the test steps for the vehicle purification capacity under the J condition are then expanded. The J condition is used to simulate the vehicle's ability to purify industrial waste gas. The specific steps are as follows:

[0174] The vehicle to be tested is placed in the vehicle test cabin 1, so that the vehicle to be tested is in a first state, the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the vehicle test cabin 1 reaches the first preset condition, the vehicle to be tested is placed in the vehicle test cabin 1 and is left to stand for a first preset time, and the vehicle test cabin 1 and the pollution source generator 4 are connected with a connecting pipe to introduce the industrial waste gas generated by the pollution source into the vehicle test cabin 1, wherein the stirring fan 2 connected to the pollution source generator 4 is arranged in the vehicle test cabin 1, and the vehicle test cabin 1 is also provided with a circulating fan 3;

[0175] Turn off the air purification device and the constant temperature and humidity device, put the vehicle under test in the second state, turn on the pollution source generator 4, and release the SO x , NO x The industrial waste gas is introduced into the whole vehicle test cabin 1 and maintained for a sixth preset time, which is 10 minutes in the present embodiment. The purification system of the vehicle to be tested is adjusted to the working mode, and the working mode of the air conditioner is adjusted to the external circulation and the maximum power. The timing is started and maintained for a seventh preset time, which is 10 minutes in the present embodiment. The purification function of the whole vehicle under the industrial waste gas environment is simulated. The harmful gases contained in the industrial waste gas mainly include sulfur dioxide and nitrogen dioxide. The concentration of the harmful gas that needs to be tested is controlled.

[0176] refer to Fig. 9, the industrial waste gas pollution source 9 generates industrial waste gas 10, which is discharged into the vehicle test chamber 1 through the stirring fan 2. When the filtration efficiency of sulfur dioxide needs to be tested, the sulfur dioxide concentration values ​​recorded at all recording points outside the vehicle to be tested for 10 minutes are obtained and recorded as the 23rd concentration value , select the minimum value among all the twenty-third concentration values , select the maximum value among all the twenty-third concentration values , the 23rd average concentration value The calculation formula is as follows:

[0177]

[0178] At the same time, obtain the sulfur dioxide concentration values ​​recorded at all recording points in the vehicle to be tested for 10 minutes, and record it as the 24th concentration value , select the minimum value among all the twenty-fourth concentration values , select the maximum value among all the twenty-fourth concentration values , the twenty-fourth average concentration value The calculation formula is as follows:

[0179]

[0180] When the filtration efficiency of nitrogen dioxide needs to be tested, the concentration value of nitrogen dioxide recorded at all recording points outside the vehicle 11 to be tested for 10 minutes is obtained and recorded as the 25th concentration value , select the minimum value among all the 25th concentration values , select the maximum value among all the twenty-fifth average concentration values , the 25th average concentration value The calculation formula is as follows:

[0181]

[0182] At the same time, the concentration values ​​of nitrogen dioxide recorded at all recording points in the vehicle 11 to be tested for 10 minutes are obtained and recorded as the 26th concentration value , select the minimum value among all the twenty-sixth concentration values , select the maximum value among all the twenty-sixth average concentration values , the twenty-sixth average concentration value The calculation formula is as follows:

[0183]

[0184] Then the purification value corresponding to the J condition is The calculation formula is as follows:

[0185]

[0186] Next, the test steps under the K condition are described. The K condition is used to simulate the vehicle's ability to purify TVOC in the vehicle under the first condition, which refers to the normal temperature condition:

[0187] Specifically, the vehicle to be tested 11 is placed in the whole vehicle test cabin 1, so that the vehicle to be tested 11 is in the first state, the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the whole vehicle test cabin 1 reaches the second preset condition, and the vehicle to be tested 11 is placed in the whole vehicle test cabin 1 and remains there for the first preset time; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan in the test cabin are turned off, so that the vehicle to be tested 11 is in the second state and maintained for an eighth preset time. The eighth preset time in this embodiment is a week (7 days, 168 hours), the TVOC detector is turned on, and the TVOC concentration value of each recording point in the vehicle to be tested 11 for 5 minutes is obtained, which is recorded as the twenty-seventh concentration value , select the minimum value among all the 27th concentration values ​​as the 27th concentration minimum value , select the maximum value among all the 27th concentration values ​​as the 27th concentration maximum value , the 27th average concentration value is calculated , the calculation formula is:

[0188]

[0189] The vehicle 11 to be tested is still in the second state, the in-vehicle purification system is in working mode, the working mode of the air conditioner is adjusted to the internal circulation, and the air conditioner is operated for the ninth preset time at the maximum power. The ninth preset time is 10 minutes in this embodiment, and the TVOC concentration value of each recording point in the vehicle for 5 minutes is obtained, which is recorded as the twenty-eighth average concentration value , select the minimum value among all the 28th concentration values ​​as the 28th concentration minimum value , select the maximum value among all the 28th concentration values ​​as the 28th concentration maximum value , the 28th average concentration value is calculated , the calculation formula is:

[0190]

[0191] Then the corresponding purification value under the K condition is:

[0192]

[0193] The following are the test steps for the vehicle 11 to be tested under the L working condition, which is used to simulate the purification ability of the vehicle for the TVOC in the vehicle under the second condition, which is after high temperature exposure:

[0194] Specifically, the vehicle to be tested 11 is placed in the whole vehicle test cabin 1, so that the vehicle to be tested 11 is in the first state, the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the whole vehicle test cabin 1 reaches the second preset condition, and the vehicle to be tested 11 is placed in the whole vehicle test cabin 1 and remains there for the first preset time; the vehicle to be tested 11 is placed in the second state, the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned off, and the movable irradiation panel light (1000W) is turned on to vertically irradiate the four directions of the vehicle to be tested 11 in sequence, namely the front windshield, the left side glass, the right side glass, and the rear windshield, and the movable irradiation panel light is 50 cm vertically away from the glass. The tenth preset time is maintained, and the tenth preset time is 4 hours in this embodiment. The TVOC concentration value of each recording point in the vehicle to be tested 11 for 5 minutes is obtained, which is recorded as the twenty-ninth concentration value , select the minimum value among all the 29th concentration values ​​as the 29th concentration minimum value , select the maximum value among all the 29th concentration values ​​as the 29th concentration maximum value , the 29th average concentration value is calculated , the calculation formula is as follows:

[0195]

[0196] The vehicle 11 to be tested is still in the second state, the in-vehicle purification system is in working mode, the working mode of the air conditioner is adjusted to the internal circulation, and the air conditioner is operated for the eleventh preset time at the maximum power. The eleventh preset time is 10 minutes in this embodiment, and the TVOC concentration value of each recording point in the vehicle 11 to be tested for 5 minutes is obtained, which is recorded as the thirtieth average concentration value , select the minimum value among all the 30th concentration values ​​as the 30th concentration minimum value , select the maximum value among all the 30th concentration values ​​as the 30th concentration maximum value , calculate the 30th average concentration value , the calculation formula is as follows:

[0197]

[0198] The purification value corresponding to the L condition is:

[0199]

[0200] According to the purification value corresponding to the I working condition, the purification value corresponding to the J working condition, the purification value corresponding to the K working condition and the purification value under the L working condition, the fourth purification value is calculated and the calculation formula is as follows:

[0201]

[0202] Furthermore, the process of calculating the total purification value using the first purification value, the second purification value, the third purification value and the fourth purification value is as follows:

[0203] Taking 12 hours as the standard cycle, the vehicle is set to stay in a static state for 4 hours, with a time weight of 1 / 3; the vehicle treats particulate pollutants for 2 hours at high temperature and high humidity, with a time weight of 1 / 6; the vehicle treats particulate pollutants for 3 hours at room temperature, with a time weight of 1 / 4; the vehicle treats toxic and harmful gases for 3 hours, with a time weight of 1 / 4; the comprehensive purification capacity of the vehicle, that is, the total purification value E, needs to be calculated according to the following formula vehiele :

[0204] .

[0205] Then, the purification level of the vehicle 11 to be tested is obtained according to the total purification value, and the purification level is used to reflect the purification capacity of the vehicle 11 to be tested. Referring to the table below, the higher the purification level, the stronger the purification capacity of the vehicle.

[0206] Purification level Total purification value 1 Evehiele<50 2 50≤Evehiele<60 3 60≤Evehiele<70 4 70≤Evehiele<80 5 80≤Evehiele<90 6 90≤Evehiele≤100

[0207] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A method for testing the pollution purification capability of a vehicle interior, characterized in that: It is used to evaluate the in-vehicle pollution purification capability of the vehicle to be tested in the test system, and the test method includes but is not limited to being performed in four test modes, namely, a whole vehicle barrier capability test mode, a whole vehicle particle pollutant purification capability test mode at normal temperature, a whole vehicle particle pollutant purification capability test mode at high temperature and high humidity, and a whole vehicle toxic and harmful gas purification capability test mode; The whole vehicle barrier capacity test mode is used to measure the purification capacity of the vehicle under test in a first working condition to obtain a first purification value; The vehicle particle pollutant purification capacity test mode at normal temperature is used to measure the purification capacity of the vehicle under test in the second working condition to obtain a second purification value; the normal temperature refers to less than or equal to 28° C. and greater than or equal to 20° C., and the relative humidity is less than or equal to 60% RH; Among them, the second working condition includes working condition A, working condition B, working condition C and working condition D. Working condition A is used to simulate the circulating filtration ability of dust particle pollution outside the vehicle, working condition B is used to simulate the purification ability of the vehicle in the environment of oil fume exhaust, working condition C is used to simulate the ability of the vehicle to quote clean air through external circulation and reduce pollution inside the vehicle, and working condition D is used to simulate the ability of internal circulation filtration of the vehicle; The vehicle particle pollutant purification capacity test mode under the high temperature and high humidity state is used to measure the purification capacity of the vehicle under test in the third working condition to obtain a third purification value; the high temperature and high humidity refers to a temperature greater than 28° C. and a relative humidity greater than 60% RH; The vehicle toxic and harmful gas purification capacity test mode is used to measure the purification capacity of the vehicle under test in a fourth working condition to obtain a fourth purification value; Calculating a total purification value of the vehicle to be tested according to the first purification value, the second purification value, the third purification value, and the fourth purification value includes: Taking 12 hours as the standard cycle, the vehicle is kept in a static state for 4 hours, with a time weight of 1 / 3; the vehicle treats particulate pollutants for 2 hours at high temperature and high humidity, with a time weight of 1 / 6; the vehicle treats particulate pollutants for 3 hours at room temperature, with a time weight of 1 / 4; the vehicle treats toxic and harmful gases for 3 hours, with a time weight of 1 / 4; The purification level of the vehicle to be tested is obtained according to the total purification value; the purification level is used to reflect the whole vehicle purification capacity of the vehicle to be tested.

2. The method for testing the pollution purification capability of a vehicle interior according to claim 1, characterized in that: The test system includes a whole vehicle test cabin, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulation fan and a stirring fan are placed, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; The steps in the vehicle barrier capability test mode include: Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach a first preset condition; The vehicle to be tested in the first state is placed in the vehicle test chamber for a cumulative time that reaches a first preset time; the vehicle to be tested is placed in the second state, wherein the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; in the first state, the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in an open state; After the vehicle to be tested maintains the second state for a second preset time, the concentration value of the particulate pollutants in the vehicle to be tested for a period of time is obtained to obtain a first average concentration value; Turning off the air purification device and the constant temperature and humidity device, injecting particulate pollutants into the vehicle test chamber, stabilizing the concentration to a second range, and maintaining the concentration for a third preset time; Acquire the concentration value of the particulate pollutants in the vehicle to be tested for a period of time to obtain a second average concentration value; The first purification value is calculated according to the first average concentration value and the second average concentration value.

3. The method for testing the pollution purification capability of a vehicle interior according to claim 1, characterized in that: The third operating condition includes E condition, F condition, G condition and H condition. The E condition is used to simulate the circulating filtration capacity of dust particle pollution outside the vehicle after pre-treatment by the test filtration system. The F condition is used to simulate the purification capacity of the vehicle in an oil fume exhaust environment after pre-treatment by the test filtration system. The G condition is used to simulate the ability of the vehicle to quote clean air through external circulation and reduce pollution inside the vehicle after pre-treatment by the test filtration system. The H condition is used to simulate the ability of the vehicle to circulate and filter inside the vehicle after pre-treatment by the test filtration system.

4. The method for testing the pollution purification capability of a vehicle interior according to claim 1, characterized in that: The fourth operating condition includes condition I, condition J, condition K and condition L. Condition I is used to simulate the ability of the test vehicle to purify automobile exhaust, condition J is used to simulate the ability of the test vehicle to purify industrial waste gas, condition K is used to simulate the ability of the test vehicle to purify TVOC in the vehicle under the first condition, and condition L is used to simulate the ability of the test vehicle to purify TVOC in the vehicle under the second condition.

5. The method for testing the pollution purification capability of a vehicle interior according to claim 1, characterized in that: Both the A condition and the B condition include: The test system includes a whole vehicle test cabin, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed, a purification system and an air conditioner are also provided in the vehicle to be tested, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; The vehicle to be tested is placed in a first state, wherein the vehicle doors, windows, rear luggage box, and sunroof are all in an open state; Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach a first preset condition, and placing the vehicle to be tested in the vehicle test chamber for a cumulative time that reaches a first preset time; The vehicle to be tested is placed in a second state, the air purification device and the constant temperature and humidity device are turned off, and particulate pollutants are injected into the vehicle test chamber and stabilized to a second concentration range, wherein the second state is that the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; The purification system of the vehicle under test is placed in the working mode, and the air conditioner of the vehicle under test is placed in an external circulation mode and at maximum power for a fourth preset time period; Wherein, the A working condition also includes: Obtaining a third average concentration value outside the vehicle to be tested and a fourth average concentration value inside the vehicle under working condition A for a certain period of time; calculating a purification value corresponding to working condition A according to the third average concentration value and the fourth average concentration value, and the particle pollutants injected in working condition A are dust particle pollutants; Wherein, the B working condition also includes: Obtaining a fifth average concentration value outside the vehicle to be tested and a sixth average concentration value inside the vehicle under the B working condition for a certain period of time; calculating a purification value corresponding to the B working condition according to the fifth average concentration value and the sixth average concentration value; the particle pollutants injected in the B working condition are oily particle pollutants; The C operating mode includes: The test system includes a whole vehicle test cabin, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed, a purification system and an air conditioner are also provided in the vehicle to be tested, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; The vehicle to be tested is placed in a first state, wherein the vehicle doors, windows, rear luggage box, and sunroof are all in an open state; Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach a first preset condition, and placing the vehicle to be tested in the vehicle test chamber for a cumulative time that reaches a first preset time; Turning off the air purification device and the constant temperature and humidity device, injecting particulate pollutants into the vehicle test chamber, and stabilizing them to a second concentration range; The vehicle to be tested is placed in a second state, the purification system of the vehicle to be tested is placed in a working mode, the working mode of the air conditioner of the vehicle to be tested is adjusted to an external circulation mode and is at maximum power, and is maintained for a fifth preset time length; Obtaining a seventh average concentration value outside the vehicle to be tested and an eighth average concentration value inside the vehicle to be tested under the C condition for a certain period of time; Calculate the purification value corresponding to the C condition according to the seventh average concentration value and the eighth average concentration value; The D operating mode includes: The test system includes a whole vehicle test cabin, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed, a purification system and an air conditioner are also provided in the vehicle to be tested, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; The vehicle to be tested is placed in a first state, wherein the vehicle doors, windows, rear luggage box, and sunroof are all in an open state; Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach a first preset condition, and placing the vehicle to be tested in the vehicle test chamber for a cumulative time that reaches a first preset time; Turning off the air purification device and the constant temperature and humidity device, injecting particulate pollutants into the vehicle test chamber, and stabilizing them to a second concentration range; The vehicle to be tested is placed in a second state, the purification system of the vehicle to be tested is placed in a working mode, the working mode of the air conditioner of the vehicle to be tested is adjusted to internal circulation and is at maximum power for a fifth preset time, wherein the second state is that the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; Obtaining a ninth average concentration value outside the vehicle to be tested and a tenth average concentration value inside the vehicle to be tested under the D working condition for a certain period of time; The purification value corresponding to the D working condition is calculated according to the ninth average concentration value and the tenth average concentration value; The second purification value is calculated according to the purification value corresponding to the A operating condition, the purification value corresponding to the B operating condition, the purification value corresponding to the C operating condition and the purification value corresponding to the D operating condition.

6. The method for testing the pollution purification capability of a vehicle interior according to claim 3, characterized in that: The E condition and the F condition both include: The test system includes a vehicle test chamber and an environmental chamber arranged outside the chamber, wherein the environmental chamber is used to create a preset environment, wherein the vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed in the vehicle test chamber, and a purification system and an air conditioner are also arranged in the vehicle to be tested, wherein the purification system has a working mode and a non-working mode, and the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentrations are arranged inside and outside the vehicle to be tested; Placing the filter system of the vehicle to be tested in the environmental chamber, and restoring and installing it in the vehicle to be tested after pretreatment by the filter system; The vehicle to be tested is placed in a first state, wherein the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in an open state; Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach a first preset condition, and placing the vehicle to be tested in the vehicle test chamber for a cumulative time that reaches a first preset time; The vehicle to be tested is placed in a second state, the air purification device and the constant temperature and humidity device are turned off, and particulate pollutants are injected into the vehicle test chamber and stabilized to a second concentration range, wherein the second state is that the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; The purification system of the vehicle under test is placed in the working mode, and the air conditioner of the vehicle under test is placed in an external circulation mode and at maximum power for a fourth preset time period; Wherein, the E condition also includes: Obtaining an eleventh average concentration value outside the vehicle to be tested and a twelfth average concentration value inside the vehicle to be tested within a certain period of time under the E condition, and calculating a purification value corresponding to the E condition according to the eleventh average concentration value and the twelfth average concentration value, wherein the particle pollutants injected into the E condition are dust particle pollutants; Wherein, the F condition also includes: Obtaining a thirteenth average concentration value outside the vehicle to be tested and a fourteenth average concentration value inside the vehicle to be tested under the F working condition for a certain period of time; calculating a purification value corresponding to the F working condition according to the thirteenth average concentration value and the fourteenth average concentration value; the particle pollutants injected under the F working condition are oily particle pollutants; The G operating mode includes: The test system includes a vehicle test chamber and an environmental chamber arranged outside the chamber, wherein the environmental chamber is used to create a preset environment, wherein the vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed in the vehicle test chamber, and a purification system and an air conditioner are also arranged in the vehicle to be tested, wherein the purification system has a working mode and a non-working mode, and the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentrations are arranged inside and outside the vehicle to be tested; The filter system of the vehicle to be tested is placed in the environmental chamber, and after pre-treatment by the filter system, it is restored and installed in the vehicle to be tested; the vehicle to be tested is placed in a first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the vehicle test chamber reaches a first preset condition and maintains a first preset time; Turning off the air purification device and the constant temperature and humidity device, injecting particulate pollutants into the vehicle test chamber, and stabilizing them to a second concentration range; The vehicle to be tested is placed in a second state, the purification system of the vehicle to be tested is placed in a working mode, the working mode of the air conditioner of the vehicle to be tested is adjusted to an external circulation mode and is at a maximum power, and is maintained for a fifth preset time, wherein the second state is that the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; Obtaining a fifteenth average concentration value outside the vehicle to be tested and a sixteenth average concentration value inside the vehicle to be tested within a certain period of time under the G condition; Calculate the purification value corresponding to the G condition according to the fifteenth average concentration value and the fifteenth average concentration value; The H operating mode includes: The test system includes a vehicle test chamber and an environmental chamber arranged outside the chamber, wherein the environmental chamber is used to create a preset environment, wherein the vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed in the vehicle test chamber, and a purification system and an air conditioner are also arranged in the vehicle to be tested, wherein the purification system has a working mode and a non-working mode, and the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentrations are arranged inside and outside the vehicle to be tested; The filter system of the vehicle to be tested is placed in the environmental chamber, and after pre-treatment by the filter system, it is restored and installed in the vehicle to be tested; the vehicle to be tested is placed in a first state; the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan are turned on, so that the vehicle test chamber reaches a first preset condition and maintains a first preset time; Turning off the air purification device and the constant temperature and humidity device, injecting particulate pollutants into the vehicle test chamber, and stabilizing them to a second concentration range; The vehicle to be tested is placed in a second state, the purification system of the vehicle to be tested is placed in a working mode, the working mode of the air conditioner of the vehicle to be tested is adjusted to internal circulation and is at maximum power for a fifth preset time, wherein the second state is that the doors, windows, rear trunk, and sunroof of the vehicle to be tested are all in a closed state; Obtaining a seventeenth average concentration value outside the vehicle to be tested and an eighteenth average concentration value inside the vehicle to be tested under the H condition for a certain period of time; The purification value corresponding to the H condition is calculated according to the seventeenth average concentration value and the eighteenth average concentration value; The third purification value is calculated according to the purification value corresponding to the E operating condition, the purification value corresponding to the F operating condition, the purification value corresponding to the G operating condition and the purification value corresponding to the H operating condition.

7. The method for testing the pollution purification capability of a vehicle interior according to claim 4, characterized in that: The I condition and the J condition both include: The test system includes a whole vehicle test cabin, in which a vehicle to be tested, an air purification device, a constant temperature and humidity device, a circulating fan and a stirring fan are placed, a purification system and an air conditioner are also provided in the vehicle to be tested, the purification system has a working mode and a non-working mode, the working mode of the air conditioner includes an external circulation and an internal circulation, and at least two recording points for recording concentration are provided inside and outside the vehicle to be tested; The vehicle to be tested is placed in a first state, wherein the doors, windows, rear luggage box, and sunroof of the vehicle to be tested are all in an open state; Turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan to make the vehicle test chamber reach the second preset condition, and placing the vehicle to be tested in the vehicle test chamber for a cumulative time reaching the first preset time; The vehicle to be tested is placed in the second state, the air purification device and the constant temperature and humidity device are turned off, and gaseous pollutants are injected into the vehicle test chamber for a sixth preset time; the gaseous pollutants include SO x and NO x ; The purification system of the vehicle under test is in working mode, and the working mode of the air conditioner of the vehicle under test is adjusted to external circulation and at maximum power, for a cumulative seventh preset time; Wherein, the I working condition also includes: Obtain the gas pollutant SO outside the vehicle to be tested under the I working condition for a certain period of time x The nineteenth average concentration value of the gaseous pollutant NO outside the vehicle to be tested is compared with the twentieth average concentration value inside the vehicle to be tested. x The twenty-first average concentration value of the gaseous pollutant in the working mode I is automobile exhaust gas; and the twenty-second average concentration value in the vehicle to be tested; Calculate the purification value corresponding to the I working condition according to the nineteenth average concentration value, the twentieth average concentration value, the twenty-first average concentration value and the twenty-second average concentration value; Wherein, the J condition also includes: Obtain the gas pollutant SO outside the vehicle to be tested under the J condition for a certain period of time x The 23rd average concentration value of the gaseous pollutant outside the vehicle to be tested is NO x The 25th average concentration value of the gaseous pollutant in the J operating mode is industrial waste gas; and the 26th average concentration value in the vehicle to be tested; The purification value corresponding to the J condition is calculated based on the 23rd average concentration value, the 24th average concentration value, the 25th average concentration value and the 26th average concentration value.

8. The method for testing the pollution purification capability of a vehicle interior according to claim 7, characterized in that: The K operating mode includes: Placing the vehicle to be tested in the whole vehicle test chamber and making the vehicle to be tested in a first state; turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan, so that the whole vehicle test chamber reaches a second preset condition and maintains the first preset time; The vehicle to be tested is placed in the second state, the air purification device, the constant temperature and humidity device, the circulation fan and the stirring fan are turned off, and the state is maintained for an eighth preset time period; Obtaining the TVOC concentration value within a certain period of time in the vehicle to be tested to obtain a twenty-seventh average concentration value; The purification system of the vehicle to be tested is placed in the working mode, the working mode of the air conditioner of the vehicle to be tested is adjusted to internal circulation and at maximum power, the accumulated time reaches a ninth preset time, and the TVOC concentration value in the vehicle to be tested under the K working condition within a certain period of time is obtained to obtain a twenty-eighth average concentration value; Calculate the purification value corresponding to the K condition according to the twenty-seventh average concentration value and the twenty-eighth average concentration value; The L operating mode includes: Placing the vehicle to be tested in the whole vehicle test chamber and making the vehicle to be tested in a first state; turning on the air purification device, the constant temperature and humidity device, the stirring fan and the circulating fan, so that the whole vehicle test chamber reaches a second preset condition and maintains the first preset time; Put the vehicle to be tested in the second state, and turn off the air purification device, the constant temperature and humidity device, the circulation fan and the stirring fan; The movable irradiation panel lamp is used to illuminate a preset position of the vehicle to be tested at a first preset distance, wherein the preset position includes a front windshield, a left side glass, a rear side glass, and a rear windshield of the vehicle to be tested, for a tenth preset time period; Obtaining the TVOC concentration in the vehicle to be tested under the L condition within a certain period of time to obtain a twenty-ninth average concentration value; The purification system of the vehicle under test is set in the working mode, and the working mode of the air conditioner of the vehicle under test is set in the internal circulation mode and at the maximum power, and maintained for an eleventh preset time period; Obtaining the TVOC concentration in the vehicle to be tested under the L condition within a certain period of time to obtain the 30th average concentration value; Calculate the purification value corresponding to the L condition according to the 29th average concentration value and the 30th average concentration value; The fourth purification value is calculated according to the purification value corresponding to the I operating condition, the purification value corresponding to the J operating condition, the purification value corresponding to the K operating condition and the purification value corresponding to the L operating condition.

9. The method for testing the pollution purification capability of a vehicle interior according to claim 6, characterized in that: The filter system pretreatment includes: placing the filter system of the vehicle to be tested in an environmental chamber, leaving it to stand for 1 hour, and maintaining the temperature in the environmental chamber at 23 5℃, relative humidity maintained at 50 10%RH; raise the temperature of the environmental chamber to 55°C and the relative humidity to 90%RH for 96 hours; lower the temperature of the environmental chamber to 23 5℃, relative humidity restored to 50 10% RH, maintain for 2 hours.

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