Arrangement of a spray path for a vehicle windscreen washer

Abstract

The application discloses a kind of arrangement methods of automobile front windshield washer spray path, it is related to the field of automobile, according to standard GB11555 "the performance and test method of automobile windshield defrosting and demisting system", using the CATIA software in the outer surface of automobile front windshield glass 3D data model, draw the A area of automobile front windshield glass, A' area, B area, to A area as reference left automobile front windshield washer and right automobile front windshield washer are arranged, according to environmental requirements and limit adjustment again, determine automobile front windshield washer spray path, spray surface and glass outer surface related line, i.e. the position of nozzle spray path finally falls on glass, realize the visibility optimization of whole vehicle vision, ensure the safety of driving, when front windshield needs to be cleaned, can provide a good visual for the driver and passenger, fully realize the safety of whole vehicle.

Description

Technical Field

[0001] This invention relates to the automotive field, and in particular to a method for arranging the spray path of a car windshield washer. Background Technology

[0002] When a car is parked outdoors for an extended period, or while driving, mud and dust easily accumulate on the outer surface of its windshield, obstructing visibility. Before removing this mud and dust, it's necessary to first spray washer fluid and then use the wipers to clear the obstructed view. The layout of the windshield washer's spray path is designed within the constraints of the surrounding environment, while simultaneously ensuring overall forward visibility and ultimately guaranteeing driving safety, especially when mud or dust on the windshield impairs the driver's vision. Current windshield washer placement is flawed; the spray path prevents the washer fluid from completely covering area A of the windshield, resulting in ineffective mud or dust removal by the wipers and requiring manual adjustment, which affects driver concentration and poses a safety hazard.

[0003] Document (CN 115056749 A) ​​discloses an automatic defogging control system for automotive windshields. Its first camera is located in an independent sealed space, while a second camera is located in an open space inside the vehicle. The first camera captures images of the environment directly in front of the first vehicle at the current sampling period through the windshield, and the second camera captures images of the environment directly in front of the second vehicle at the same sampling period. The automatic defogging controller calculates the similarity between the images of the first and second vehicles at the current sampling period. When the similarity is less than a threshold, the controller sends a control signal for intermittent operation of the windshield wipers. The above defogging method is ineffective at handling sludge or dust, necessitating the innovative development of a method for arranging the spray path of the automotive windshield washer to eliminate safety hazards. Summary of the Invention

[0004] This invention addresses the problems existing in the prior art by devising a method for arranging the spray path of a car windshield washer. By standardizing the arrangement of the car windshield washer, the overall visibility of the vehicle is optimized, avoiding the waste of human and material resources caused by multiple calibrations on actual vehicles.

[0005] The technical solution adopted to achieve the present invention is a method for arranging the spray path of a car windshield washer, characterized by comprising the following steps:

[0006] 1) Using the extract command in CATIA software, extract the 3D data model of the car windshield. According to the requirements of standard GB11555 "Performance and test methods of automotive windshield defrosting and defogging systems", use the CATIA software to draw area A, area A', and area B of the car windshield on the outer surface of the 3D data model of the car windshield.

[0007] 2) Using the extraction command in the CATIA software, extract the lower boundary of the 3D data model of the car windshield, measure the distance between the line segments in the glass, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of the windshield.

[0008] 3) Use the extract command in the CATIA software to extract the lower boundary of area A, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of area A;

[0009] 4) A left windshield washer and a right windshield washer are arranged on the outer panel of the hood, the water trough grille or the inner panel of the hood of the car. The water drop points of the spray paths of the left windshield washer and the right windshield washer are set in the lower 1 / 3 of area A and the lower 1 / 3 of the glass.

[0010] 5) Verify that the distance between the spray path of the left and right windshield washer and the inner panel of the wiper and hood is ≥5mm, and determine the spray path of the windshield washer.

[0011] Furthermore, the left and right windshield washers are arranged symmetrically about the Y0 plane.

[0012] Furthermore, the lateral spray opening angle α of the left and right windshield washer fluids is 50°±5°.

[0013] Furthermore, the longitudinal opening angle of the left and right windshield washers is ±1°.

[0014] Furthermore, the installation tilt angle β of the left and right windshield washer is 26°±0.5°.

[0015] Furthermore, the test pressure for the left and right windshield washers is 1.6 ± 0.3 bar.

[0016] The beneficial effects of the present invention's method for arranging the spray path of a car windshield washer are as follows:

[0017] A method for arranging the spray path of a car windshield washer is disclosed. Using area A as a reference, the left and right windshield washers are arranged. Further adjustments are made based on environmental requirements and limitations to determine the spray path of the windshield washer. The spray surface is aligned with the outer surface of the glass, i.e., the final position of the nozzle spray path on the glass. This optimizes the overall vehicle visibility, ensuring driving safety. When the windshield needs cleaning, it provides excellent visibility for the driver and passengers, fully realizing the safety of the entire vehicle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the horizontal spray opening angle α of a car's windshield washer.

[0019] Figure 2 This is a schematic diagram showing the tilt angle β of the car's windshield washer.

[0020] Figure 3 This is a schematic diagram of a 3D data model of a car's windshield. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described in detail below with reference to specific embodiments. In order to make the purpose, technical solution and advantages of the embodiments clearer, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0022] The car windshield washer system includes a left windshield washer and a right windshield washer. The left and right windshield washers are symmetrically positioned about the Y0 plane. They are located at four positions: the outer panel of the windshield, the inner panel of the windshield, the water channel grille, and the wiper arm. The optimal vertical spray positions for the left and right windshield washers are corresponding to the lower 1 / 3 and lower 1 / 3 of the glass zone (area A). The horizontal spray opening angle α of the left and right windshield washers is 50°±5° respectively, as shown in the attached diagram. Figure 1 As shown; the longitudinal opening angles of the left and right windshield washers are ±1°, and the installation tilt angles β of the left and right windshield washers are 26°±0.5°, respectively. Figure 2 As shown, the test pressures for the left and right windshield washers were 1.6 ± 0.3 bar, respectively.

[0023] A method for arranging the spray path of a car windshield washer includes the following steps:

[0024] 1) Using the extract command in CATIA software, extract the 3D data model of the car windshield. According to the requirements of standard GB11555 "Performance and test methods of automotive windshield defrosting and defogging systems", use the CATIA software to draw area A, area A', and area B of the car windshield on the outer surface of the 3D data model of the car windshield.

[0025] 2) Using the extraction command in the CATIA software, extract the lower boundary of the 3D data model of the car windshield, measure the distance between the line segments in the glass, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of the windshield.

[0026] 3) Use the extract command in the CATIA software to extract the lower boundary of area A, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of area A;

[0027] 4) A left and right windshield washer are installed on the outer panel, water trough grille, or inner panel of the car's hood. The water droplets of the left and right windshield washers are positioned in the lower 1 / 3 and lower 1 / 3 position range of area A, as shown in the attached diagram. Figure 3 As shown;

[0028] 5) Verify that the distance between the spray path of the left and right windshield washer and the inner panel of the wiper and hood is ≥5mm, and determine the spray path of the windshield washer.

[0029] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for arranging the spray path of a car windshield washer, characterized in that, It includes the following steps: 1) Using the extract command in CATIA software, extract the 3D data model of the car windshield. According to the requirements of standard GB11555 "Performance and test methods of automotive windshield defrosting and defogging systems", use the CATIA software to draw area A, area A', and area B of the car windshield on the outer surface of the 3D data model of the car windshield. 2) Using the extraction command in the CATIA software, extract the lower boundary of the 3D data model of the car windshield, measure the distance between the line segments in the glass, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of the windshield. 3) Use the extract command in the CATIA software to extract the lower boundary of area A, and use the parallel curve command in the CATIA software to find the lower 1 / 3 position of area A; 4) A left windshield washer and a right windshield washer are arranged on the outer panel of the hood, the water trough grille or the inner panel of the hood of the car. The water drop points of the spray paths of the left windshield washer and the right windshield washer are set in the lower 1 / 3 of area A and the lower 1 / 3 of the glass. 5) Verify that the distance between the spray path of the left and right windshield washer and the inner panel of the wiper and hood is ≥5mm, and determine the spray path of the windshield washer.

2. The method for arranging the spray path of a car windshield washer according to claim 1, characterized in that, The left and right windshield washers are arranged symmetrically about the Y0 plane.

3. The method for arranging the spray path of a car windshield washer according to claim 1, characterized in that, The lateral spray opening angle α of the left and right windshield washer fluids is 50°±5°.

4. The method for arranging the spray path of a car windshield washer according to claim 1, characterized in that, The longitudinal opening angle of the left and right windshield washer fluids is ±1°.

5. The method for arranging the spray path of a car windshield washer according to claim 1, characterized in that, The installation tilt angle β of the left and right windshield washer is 26°±0.5°.

6. The method for arranging the spray path of a car windshield washer according to claim 1, characterized in that, The test pressure for the left and right windshield washer fluids of the vehicle is 1.6 ± 0.3 bar.

Images