CN112977342B - Wiper scraping degree detection method - Google Patents
Wiper scraping degree detection method Download PDFInfo
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- CN112977342B CN112977342B CN202110333784.XA CN202110333784A CN112977342B CN 112977342 B CN112977342 B CN 112977342B CN 202110333784 A CN202110333784 A CN 202110333784A CN 112977342 B CN112977342 B CN 112977342B
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- water
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- 238000007790 scraping Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 230000003749 cleanliness Effects 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000000007 visual effect Effects 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 230000001680 brushing effect Effects 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 3
- 239000003599 detergent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention provides a wiper scraping cleanliness detection method, which comprises the following steps: A. cleaning and drying the windshield; B. spraying mixed liquid simulating outdoor pollution on the windshield and waiting for drying; C. spraying a cleaning solution and starting a wiper; D. the in-vehicle image acquisition device acquires the state, the quantity and the thickness of water marks in the wiper area at the driving position and records and scores; the water mark state is divided into two states of keeping unchanged and changing the water mark number or length, and the water mark is subjected to weight division in the wiper scraping area according to the visual field importance. In the scheme, the method is mainly different from the prior art in that the range of the windshield is divided, different weights are given according to different regions, and the changed water marks are still included in a scoring system, so that the subjective feeling of an actual driver is simulated.
Description
Technical Field
The invention belongs to the field of vehicle part testing, and particularly relates to a wiper scraping degree detection method.
Background
With the development of society, the popularization degree and the use frequency of automobiles are higher and higher, the windscreen wiper is used as an important safety part of the automobile, two windscreen wipers are generally arranged on a front windscreen, one windscreen wiper is arranged on a rear windscreen, clear regulation requirements are provided for the wiping area GB, requirements of users on safety performance and driving vision are higher and higher, and the wiping degree problem of the windscreen wiper is paid more and more attention.
Chinese patent CN108791194A discloses a method and a device for determining wiper scraping cleanliness, which comprises the steps of uniformly spraying a prefabricated mixture on the windshield of an automobile; controlling a wiper blade to wash and brush the automobile windshield once so as to scrape the prefabricated mixture of the wiper blade in a cleanable area; acquiring the quantity of overproof residues in a cleanable area, wherein the overproof residues are a prefabricated mixture which is larger than a preset size and remains after the wiper is washed back and forth once; and judging whether the quantity of the overproof residues is greater than a first preset threshold value or not, and judging that the scraping cleanliness of the windscreen wiper does not reach the standard when the quantity of the overproof residues is greater than the first preset threshold value. The method is essentially a method for judging whether the wiper blade should be replaced after being used, an area detector and other devices are needed, the equipment cost is high, the judging process is complicated, the scraping cleanliness is judged only according to the area of residues, however, the scraping cleanliness on glass is related to the specific state of the residues, a specific evaluation standard is not disclosed, the scraping cleanliness is not classified, the method is only suitable for judging whether the wiper blade should be replaced, the performance of the wiper blade cannot be judged, and the scraping cleanliness is still difficult to evaluate and count during actual operation. That is, the scheme is only suitable for being used by a repair shop and is not suitable for testing the performance of the wiper blade in a host factory.
Disclosure of Invention
The invention aims to provide a wiper scraping cleanliness detection method which is simple and easy to carry out statistical classification.
In order to achieve the purpose, the invention adopts the technical scheme that: a wiper scraping degree detection method comprises the following steps: A. cleaning and drying the windshield; B. spraying mixed liquid simulating outdoor pollution on the windshield and waiting for drying; C. spraying washing liquid and starting a wiper; D. the in-vehicle image acquisition device acquires the state, the quantity and the thickness of water marks in the wiper area at the driving position and records and scores; the water mark state is divided into two states of keeping unchanged and changing the water mark number or length, and the water mark is subjected to weight division in the wiper scraping area according to the visual field importance.
In the scheme, the method is mainly different from the prior art in that the range of the windshield is divided, different weights are given according to different regions, and the changed water marks are still included in a scoring system, so that the subjective feeling of an actual driver is simulated.
Detailed Description
A wiper scraping degree detection method comprises the following steps: A. cleaning and drying the windshield; B. spraying mixed liquid simulating outdoor pollution on the windshield and waiting for drying; C. spraying a cleaning solution and starting a wiper; D. the in-vehicle image acquisition device acquires the state, the quantity and the thickness of water marks in the wiper area at the driving position and records and scores; the water mark state is divided into two states of keeping unchanged and changing the water mark number or length, and the water mark is subjected to weight division in the wiper scraping area according to the visual field importance.
In the scheme, the water stain changes to represent that the residual water stain can be evaporated and disappear very little quickly, the water stain remains more invariably, and the natural weight of the middle part of the windscreen wiper is higher for the common visual field range. The method is mainly different from the prior art in that the range of the windshield is divided, different weights are given according to different areas, and water marks which disappear quickly are still included in a scoring system, so that the subjective feeling of actual drivers is simulated. The image acquisition device can be an observer sitting in the vehicle or a camera simulating the eyes of a dummy, so that the sitting posture of a driver is better met.
The wiper is characterized in that the wiper ranges of 1/6 lengths at the upper end and the lower end of the wiper are respectively set to be 1/6L areas which are low-buckling-weight areas, the wiper range between the two 1/6L areas is set to be 2/3L areas which are high-buckling-weight areas. The 2/3L area is the primary viewing angle range for the driver and therefore has a higher deduction weight, and the 1/6L area is the viewing angle edge range which is the deduction weight area.
The grading standard of the wiper scraping cleanliness detection method is as follows:
10 min: no water mark exists in the scraping and brushing range;
9 min: no water mark in region 2/3L, region 1/6L: the water trace in thin strip shape is 1, and the water trace changes;
8 min: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 3, and the water marks are changed; or: no water mark in region 2/3L, region 1/6L: 1 thin strip-shaped water mark, wherein the water mark is unchanged;
7, dividing: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 3, and the water marks are unchanged; or: no water mark in region 1/6L, region 2/3L: the water marks of the thin strips are 1, and the water marks are changed;
6 min: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 4, and the water marks are unchanged; or: 2/3L and 1/6L regions: the number of the water marks is more than 3 and less than or equal to 10, and the water marks are changed; or: no water mark in region 1/6L, region 2/3L: 1 thin strip-shaped water mark, wherein the water mark is unchanged;
and 5, dividing: no water mark in region 2/3L, region 1/6L: the number of the water stains is more than 1 and less than or equal to 6, and the water stains are unchanged; or: 2/3L and 1/6L regions: the number of the thin strip water marks is more than 10 and less than or equal to 16, and the water marks are changed; or: no water mark in region 1/6L, region 2/3L: 2 thin strip-shaped water traces are unchanged;
and 4, dividing: various strip-shaped water stains with different widths and incapable of being fine appear in 1/6L and 2/3L areas, the water stains are unchanged, and the wiping area is larger than 75%;
and 3, dividing: various water stains which are not thin and have different widths appear in 1/6L and 2/3L areas, the water stains are not changed, and the wiping area in a 2/3L area is less than or equal to 75 percent;
and 2, dividing: island-shaped water marks or coarse strip-shaped water marks or residual fine down-flowing water marks appear in 1/6L and 2/3L areas, and the water marks are unchanged;
1 minute: corrugated water traces appear in 1/6L and 2/3L areas, and the water traces are unchanged;
the width of the thin strip-shaped water stain is less than or equal to 0.3mm, the width of the strip-shaped water stain is more than 0.3m and less than or equal to 1mm, and the width of the thick strip-shaped water stain is more than 1 mm.
Dividing performance evaluation and customer subjective satisfaction according to the scores, and specifically comprising the following steps:
performance evaluation: 1-2 points, unacceptable; 3-4 minutes, poor; 5 min, boundary line; 6 min, acceptable; 7 minutes, better; 8 min, good; 9 minutes, very good; 10 minutes, perfect;
customer satisfaction: 1-4 points, very unsatisfied; 5 minutes, slightly less than full; the score is 6 to 7, and the satisfaction is achieved; 8 points, very satisfactory; 9-10 are completely satisfactory. And the detailed scoring standard is converted into the text description of the satisfaction degree, so that the actual feeling of the client is more intuitively approached.
During the test, the vehicle is kept closed, the vehicle window, the air conditioner, the radio and the like are closed, the seat is adjusted to be in the vertical position, the adjusting headrest is positioned in the middle position, and the image acquisition device simulates the normal driving posture. Therefore, the actual driving state of the driver is closer to the actual driving state of the driver, and the detection method is closer to the actual feeling of the driver.
And C, spraying cleaning solution before the wiper scraping test in the step C, starting the wiper, continuously spraying the cleaning solution for more than 3 seconds, and finishing initial running-in after the wiper runs for 6 cycles. Initial break-in is performed first because there may be an assembly tolerance gap in the wiper blade after assembly is completed.
And C, spraying the cleaning solution for more than 3s during the wiper test in the step C, recording and evaluating the water mark state on the windshield in three cycles of the wiper, and taking the water mark state as the initial wiping performance. The wiper is used for simulating the wiping cleanliness of the wiper when the wiper leaves a factory.
And carrying out wiper scraping degree evaluation once again after the wiper is changed and brushed for 25 ten thousand times in a wiper cycle, carrying out wiper scraping degree evaluation once after the wiper is changed and brushed for every 50 ten thousand times, totally 150 ten thousand times in the wiper cycle, obtaining each grade and comparing the initial wiping performance, and taking the each grade as the wiping performance in the service life. The service life of the windscreen wiper can be better simulated, and relevant replacement time can be set so as to remind a customer to replace the windscreen wiper within the service life range of the windscreen wiper.
The initial scraping and brushing performance is more than or equal to 8 minutes, and the scraping and brushing performance is more than or equal to 5 minutes in service life. And setting a delivery standard and a service life standard.
And step A, thoroughly removing oil stains and pollutants on the outer surface of the windshield by using methanol, alcohol or equivalent detergent, cleaning the outer surface of the windshield by using ammonia water with the concentration of 3% -10% after drying, and wiping the windshield by using dry cotton cloth after drying.
Table 1: wiper scraping degree grading
Table 2: satisfaction scoring criteria
Claims (8)
1. A wiper scraping degree detection method is characterized by comprising the following steps: the method comprises the following steps:
A. cleaning and drying the windshield;
B. spraying mixed liquid simulating outdoor pollution on the windshield and waiting for drying;
C. spraying a cleaning solution and starting a wiper;
D. the in-vehicle image acquisition device simulates the state, the quantity and the thickness of water marks in a wiper scraping and brushing area at a driving position and records and scores;
the water mark state is divided into two states of keeping unchanged and changing the number or length of the water marks, and the water marks are subjected to weight division in a wiper area of the wiper according to the importance of a visual field;
the wiper range of the wiper at the upper end and the lower end of each wiper blade with the length of 1/6 is set as a 1/6L area which is a low-buckling weight area, and the wiper range between the two 1/6L areas is set as a 2/3L area which is a high-buckling weight area;
the scoring criteria were:
10 min: no water mark exists in the scraping and brushing range;
9 min: no water mark in region 2/3L, region 1/6L: the water marks of the thin strips are 1, and the water marks are changed;
8 min: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 3, and the water marks are changed; or: no water mark in region 2/3L, region 1/6L: 1 thin strip-shaped water mark, wherein the water mark is unchanged;
7, dividing: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 3, and the water marks are unchanged; or: no water mark in region 1/6L, region 2/3L: the water marks of the thin strips are 1, and the water marks are changed;
6 min: no water mark in region 2/3L, region 1/6L: the number of the water marks is more than 1 and less than or equal to 4, and the water marks are unchanged; or: 2/3L and 1/6L regions: the number of the water marks is more than 3 and less than or equal to 10, and the water marks are changed; or: no water mark in region 1/6L, region 2/3L: 1 thin strip-shaped water mark, wherein the water mark is unchanged;
and 5, dividing: no water mark in region 2/3L, region 1/6L: the number of the water stains is more than 1 and less than or equal to 6, and the water stains are unchanged; or: 2/3L and 1/6L regions: the number of the thin strip water marks is more than 10 and less than or equal to 16, and the water marks are changed; or: no water mark in region 1/6L, region 2/3L: 2 thin strip-shaped water traces are unchanged;
and 4, dividing: various strip-shaped water stains with different widths and incapable of being fine appear in 1/6L and 2/3L areas, the water stains are unchanged, and the wiping area is larger than 75%;
and 3, dividing: various water stains which are not thin and have different widths appear in 1/6L and 2/3L areas, the water stains are not changed, and the wiping area in a 2/3L area is less than or equal to 75 percent;
and 2, dividing: island-shaped water marks or coarse strip-shaped water marks or residual fine down-flowing water marks appear in 1/6L and 2/3L areas, and the water marks are unchanged;
1 minute: corrugated water traces appear in 1/6L and 2/3L areas, and the water traces are unchanged;
the width of the thin strip-shaped water stain is less than or equal to 0.3mm, the width of the strip-shaped water stain is more than 0.3m and less than or equal to 1mm, and the width of the thick strip-shaped water stain is more than 1 mm.
2. The method of detecting wiper cleanliness of a wiper blade of claim 1, further comprising: dividing performance evaluation and customer subjective satisfaction according to the scores, and specifically comprising the following steps:
performance evaluation: 1-2 points, unacceptable; 3-4 minutes, poor; 5 min, boundary line; 6 min, acceptable; 7 minutes, better; 8 min, good; 9 minutes, very good; 10 minutes, perfect;
customer satisfaction: 1-4 points, very unsatisfied; 5 minutes, slightly less than satisfactory; the score is 6-7, and the satisfaction is achieved; 8 points, very satisfactory; 9-10 are completely satisfactory.
3. The method of detecting wiper cleanliness of a wiper blade of claim 1, further comprising: during the test, the vehicle is kept closed, the vehicle window, the air conditioner and the radio are closed, the seat is adjusted to be at the vertical position, the adjusting headrest is located at the middle position, and the image acquisition device adopts a normal driving posture.
4. The method of detecting wiper cleanliness of a wiper blade of claim 1, further comprising: and C, spraying cleaning solution before the wiper scraping test in the step C, starting the wiper, continuously spraying the cleaning solution for more than 3 seconds, and finishing initial running-in after the wiper runs for 6 cycles.
5. The wiper blade wiping degree detection method according to claim 2, characterized in that: and C, spraying the cleaning solution for more than 3s during the wiper test in the step C, recording and evaluating the states of the water marks on the windshield in three cycles of the wiper, and taking the states as initial wiping performances.
6. The method of claim 5, wherein the wiper blade is selected from the group consisting of: and carrying out wiper scraping degree evaluation once again after the wiper is changed and brushed for 25 ten thousand times in a wiper cycle, carrying out wiper scraping degree evaluation once after the wiper is changed and brushed for every 50 ten thousand times, totally 150 ten thousand times in the wiper cycle, obtaining each grade and comparing the initial wiping performance, and taking the each grade as the wiping performance in the service life.
7. The method of claim 6, wherein the wiper blade wiper clearance test is performed by: the delivery standard and the service life standard are respectively as follows: the initial scraping and brushing performance is more than or equal to 8 minutes, and the scraping and brushing performance is more than or equal to 5 minutes in service life.
8. The method of detecting wiper cleanliness of a wiper blade of claim 1, further comprising: and B, completely removing oil stains and pollutants on the outer surface of the windshield by using methanol or alcohol, cleaning the outer surface of the windshield by using ammonia water with the concentration of 3% -10% after drying, and wiping the windshield by using dry cotton cloth after drying.
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| CN202110333784.XA CN112977342B (en) | 2021-03-29 | 2021-03-29 | Wiper scraping degree detection method |
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| CN112977342B true CN112977342B (en) | 2022-05-03 |
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| CN109466510A (en) * | 2018-11-19 | 2019-03-15 | 厦门理工学院 | Rain shaving blade adhesive tape fault detection method and detection system based on rainwater residual scratch |
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2021
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|---|---|---|---|---|
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