CN102967276A - Method for detecting degree of adaptability between glass and windscreen wiper - Google Patents
Method for detecting degree of adaptability between glass and windscreen wiper Download PDFInfo
- Publication number
- CN102967276A CN102967276A CN2012105461344A CN201210546134A CN102967276A CN 102967276 A CN102967276 A CN 102967276A CN 2012105461344 A CN2012105461344 A CN 2012105461344A CN 201210546134 A CN201210546134 A CN 201210546134A CN 102967276 A CN102967276 A CN 102967276A
- Authority
- CN
- China
- Prior art keywords
- glass
- angle
- active line
- point
- windscreen wiper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to a method for detecting a glass profile, and especially relates to a method for detecting the adaptability between glass and a windscreen wiper. The method comprises the following steps of: (1) placing the windscreen wiper and the glass to be detected on a worktable, acquiring the image data of the windscreen wiper and the glass through reverse engineering and transmitting the image data to an image processing module; (2) obtaining a glass action line formed by a wiper blade at various positions in a stroke range by the image processing module; (3) converting the glass action line in the step 2 into parameter data capable of carrying out index detection; and (4) carrying out index detection on the parameter data and judging that whether the adaptability between the windscreen wiper and the glass satisfies the requirement or not according to that whether the parameter data is in a set range. The method has the advantages of dispensing with detection instruments which are high in cost and easy to damage so as to reduce the production cost and analyzing the parameters which cannot be measured by the original detection instrument so as to obtain correct measurement result.
Description
Technical field:
The present invention relates to a kind of detection method of glass profile, particularly the detection method of the fitness of a kind of windshield and windscreen wiper.
Background technology:
Along with the development of automotive engineering, people are more and more higher to the requirement of vehicle security energy aspect.Windscreen wiper can be cleared away water, snow and sand and dust on the windshield effectively as parts indispensable on the motor vehicles, guarantees that the driver still has the good visual field when adverse weather, guarantees traffic safety.If cooperating of the outside surface of the scraping blade of windscreen wiper and windshield is bad, can cause the problems such as wiper noise and wiping effect be poor, this just needs in advance to carry out determination and analysis to the fitness of windscreen wiper and windshield.The determinative of the fitness of windscreen wiper and windshield comprises the windscreen wiper angle of attack, angle of attack gradient, curvature and curvature gradient etc.Wherein, the windscreen wiper angle of attack is an important parameter that determines windscreen wiper and windshield fitness, is to represent wiper blades in operational process, the angular relationship between scraping blade and the glass.When windscreen wiper fitness parameter was in scope of design, the scraping blade operational process is steady, smooth and easy, and was good with glass contact; And when windscreen wiper fitness parameter exceeded scope of design, the scraping blade phenomenon such as shake, beat then can appear in operational process, then cause the problems such as noise and wiping effect be poor.
In the prior art, normally adopt windscreen wiper angle of attack instrument that this angle is measured, compare by the windscreen wiper angle of attack and the setting value that will detect, when the windscreen wiper angle of attack during less than setting value, judge that then the outside surface of glass and windscreen wiper fitness meet the demands.And fix from the angle of attack apparatus frame of external import at present, can accurately simulate the position of the coupling shaft of original windscreen wiper system scraping arm and scraping blade, but can not accurately simulate the position of scraping arm and swing arm coupling shaft, inconsistent with actual conditions, in analytic process, there is certain error.And this angle of attack instrument is expensive, damages easily.
Chinese patent CN101430185 also discloses a kind of method that adopts the attack angle measurement instrument that this angle is measured, by the fit angle of measurement scraping arm and glass, thus the approximate angle that draws between scraping blade and glass, there is certain error in measurement result; The method can only be for detection of the angle of attack of scraping blade and scraping blade connecting rod connecting portion branch, and measurement data is single; The glass windscreen wiper system that the attack angle measurement instrument can only be exclusively used in correspondingly-sized carries out Entity measurement, and range of application is restricted.
Summary of the invention:
Technical matters to be solved by this invention is for the shortcoming that measuring error is large, cost is high of the detection method existence of the fitness of existing glass and windscreen wiper, and a kind of detection method of measuring the fitness of glass accurate, with low cost and windscreen wiper is provided.
The technical solution adopted for the present invention to solve the technical problems is:
The detection method of the fitness of a kind of glass and windscreen wiper, described windscreen wiper comprises swing arm, scraping arm and scraping blade, described swing arm is rotationally connected by the first rotating shaft and vehicle body, described swing arm and described scraping arm are rotationally connected by the second rotating shaft, described scraping arm and described scraping blade are rotationally connected by the 3rd rotating shaft, and it is characterized in that: the method comprises the steps:
Step 1: windscreen wiper to be detected and glass are positioned on the worktable according to assembly relation, gather the geometric data of described windscreen wiper and the cooperation of described glass by reverse-engineering, described geometric data is transferred to image processing module, and described geometric data forms three-dimensional model after treatment in image processing module;
Step 2: by the action of the three-dimensional model in described image processing module simulation windscreen wiper on the outside surface of glass, thereby when determining that scraping blade is in diverse location on the outside surface of glass formed glass active line;
Step 3: the supplemental characteristic of finding the solution the fitness that affects glass and windscreen wiper according to the glass active line of determining in the step 2, described supplemental characteristic comprises the angle of attack, and the described angle of attack is the angle between the vertical plane of the glass surface normal of certain point on the glass active line and the second rotating shaft;
Step 4: described supplemental characteristic is carried out index detect, whether in setting range, judge whether the fitness of windscreen wiper and glass meets the demands according to described supplemental characteristic.
Further, geometric data described in the step 1 comprises the locus of described the first rotating shaft, the second rotating shaft, the 3rd rotating shaft and scraping blade active line and the outside surface of described glass, and described scraping blade active line is the active line when fitting with the outside surface of glass on the scraping blade.
Further, the method of the definite glass active line described in the step 2 is: at first described scraping blade active line is turned to each position in the travel range around the first rotating shaft, then described scraping blade active line is rotated so that A point bee-line to the outside surface of described glass in the windscreen wiper plane equals d around described the second rotating shaft
1, arriving at this moment the shortest any of A point distance on the intersection of the outside surface of windscreen wiper plane and glass is the E point; On described intersection, choose the F point away from an end of the first rotating shaft, so that the arc length between F point and the E point equals d
2End near the first rotating shaft on described intersection is chosen the G point, so that the arc length between G point and the E point equals d
3Segment of curve on the described intersection between F point and the G point is exactly the glass active line;
Wherein, the A point is the intersection point on described the 3rd rotating shaft and windscreen wiper plane, the B point be on the scraping blade active line to A point distance the shortest a bit, the C point be on the scraping blade active line away from the end points of the first rotating shaft, the D point is the end points of close the first rotating shaft on the scraping blade active line, d
1Be the line segment length between A point and the B point, d
2Be the arc length between B point on the scraping blade active line and the C point, d
3For between B point on the scraping blade active line and the D point arc length, described windscreen wiper plane is the plane at scraping blade active line place.
Further, in index detected, the setting range of the described angle of attack was in ± 9 degree scopes.
Further, the supplemental characteristic described in the step 3 also comprises linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient; Described linear angle of attack gradient is the ratio of the arc length of the glass active line between angle of attack variation adjacent 2 on the glass active line and these 2; Described angle property angle of attack gradient be on the adjacent glass active line with separately interior end points between 2 the angle of attack equating of arc length and the ratio between the angle on this plane, two adjacent glass active line places; Described radius-of-curvature is the radius-of-curvature of upper certain point of glass active line; Described curvature gradient is the ratio of the arc length of the glass active line between the variation of radius-of-curvature adjacent 2 on the glass active line and these 2.
Further, in index detects, the setting range of described linear angle of attack gradient is in ± 0.04 degree/millimeter scope, the setting range of described angle property angle of attack gradient is in ± 0.5 degree/degree scope, the setting range of described radius-of-curvature is 1500 millimeters to 15000 millimeters, and the setting range of described curvature gradient is in ± 27 millimeters/millimeter scopes.
Further, the method of finding the solution the angle of attack in the step 3 is: take up an official post at described glass active line and get 1 P, obtain respectively the vertical plane of the second rotating shaft and cross the P point perpendicular to the normal of the outside surface of glass, the angle of obtaining at last between described vertical plane and the described normal is the angle of attack.
Further, the method for solving of described linear angle of attack gradient is: the glass active line take up an official post get 1 P and and the P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, then the P angle of attack gradient of ordering=(a1-a2)/L1; The method for solving of described angle property angle of attack gradient is: two adjacent glass active lines get with separately interior end points between 2 points that equate of arc length, the angle on plane, described adjacent two glass active line places is a4, obtain this angle of attack of 2 and be respectively a2 and a3, wherein the angle of attack be a2 a bit be the P point, the P angle property angle of attack gradient of ordering=(a3-a2)/a4 then; The method for solving of described radius-of-curvature is: described glass active line take up an official post get 1 P and with the P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered; The method for solving of described curvature gradient is: the glass active line take up an official post get 1 P and and the P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, then the P curvature gradient of ordering=(r6-r5)/L2.
Further, in described step 4, if described supplemental characteristic exceeds setting range, then add up described supplemental characteristic and exceed the zone of setting range as the defect area of glass.
Further, the geometric data described in the step 1 is replaced the data of using reverse-engineering to gather with the data of Computer Design.
The present invention is owing to taked technique scheme, and it has following beneficial effect:
(1) directly adopts reverse-engineering acquisition of image data and converting to can carry out the supplemental characteristic that index detects, thereby realize the determination and analysis of the windscreen wiper angle of attack, do not need the purchasing price costliness to hold again flimsy windscreen wiper angle of attack detecting instrument, save cost;
(2) all sizes are simulated according to the size of wiper body fully, can analyze original angle of attack detecting instrument measure less than parameter, more accurate than apparatus measures, more near virtual condition;
(3) adopt method of the present invention, just can analyze the fitness of windscreen wiper and glass in the design phase, avoid later development unsuccessfully to cause huge economic loss.
Description of drawings:
Fig. 1: the structural representation of glass of the present invention and windscreen wiper;
Fig. 2: the process flow diagram of the detection method of the fitness of glass of the present invention and windscreen wiper;
Fig. 3: the synoptic diagram of the parameter of scraping blade active line of the present invention;
Fig. 4: the synoptic diagram of the parameter of glass active line of the present invention;
Fig. 5: the synoptic diagram of the location parameter of the some P on the glass active line of the present invention;
Fig. 6: the synoptic diagram of linear angle of attack gradient parameter of the present invention;
Fig. 7: the synoptic diagram of angle property angle of attack gradient parameter of the present invention;
Fig. 8: the synoptic diagram of curvature gradient parameter of the present invention;
Fig. 9: the curve map of the relation of the angle of attack of the present invention and glass active line rotational angle;
Figure 10: linear angle of attack gradient of the present invention and this point are to the curve map of the relation of the arc length of interior end points;
Figure 11: the curve map of the relation of angle property angle of attack angle of attack gradient of the present invention and glass active line rotational angle;
Figure 12: radius-of-curvature of the present invention and this point are to the curve map of the relation of the arc length of interior end points;
Figure 13: curvature gradient of the present invention and this point are to the curve map of the relation of the arc length of interior end points.
Embodiment:
Below in conjunction with accompanying drawing content of the present invention is described further.
The windscreen wiper angle of attack is an important parameter that determines windscreen wiper and windshield fitness, and the curvature of glass profile directly affects the angle of attack size of windscreen wiper and changes.In the windscreen wiper rotation process, the required scraping arm expulsive force of the identical scraping blade pressure of the larger generation of the windscreen wiper angle of attack is also larger, and the continuous variation of the angle of attack also can impact the windscreen wiper power system affects steadily sweeping of windscreen wiper.Purpose of the present invention is exactly size and the situation of change by the windscreen wiper angle of attack of analyzing the glass profile, is confirmed whether to allow the scraping blade outside surface of glass of fitting fully, solves the matching problem of windscreen wiper and windshield; Analysis result can be used for design and the modification of glass profile, also can be used for the design windscreen wiper and judge whether glass is fit to the assembling windscreen wiper.
Hereinafter introduce for convenient, at first the relevant portion in the windscreen wiper system named:
As shown in Figure 1, windscreen wiper 10 described in the present invention comprises swing arm 14, scraping arm 15 and scraping blade 16, described swing arm 14 is rotationally connected with vehicle body by the first rotating shaft 11, described swing arm 14 and described scraping arm 15 are rotationally connected by the second rotating shaft 12, and described scraping arm 15 and described scraping blade 16 are rotationally connected by the 3rd rotating shaft 13.
1. the scraping blade active line is the active line when fitting with the outside surface of glass 20 on the scraping blade 16, the osculatory of the outside surface of scraping blade 16 and glass 20 when namely windscreen wiper 10 sweeps, it is the bar plane curve, and when windscreen wiper swept, scraping blade effect curvature of a curve changed along with the variation of the outside surface of glass 20.
2. the glass active line is the formed active line when fitting tightly with scraping blade 16 on the outside surface of windscreen wiper described glass 20 when sweeping.When the intimate of scraping blade and glass was fitted, the plastic deformation of scraping blade active line was fitted in formation glass active line on glass.
Two end points of glass active line are defined as respectively outer end points and interior end points, and described outer end points is distance the first rotating shaft 11 end points far away on the glass active line, and described interior end points is the nearer end points of distance the first rotating shaft 11 on the glass active line.
Glass active line rotational angle a refers to the angle of the initial position of the physical location of glass active line and glass active line, and the initial position of described glass active line is the glass active line residing position of windscreen wiper when quitting work.
3. the windscreen wiper plane is the plane at scraping blade active line place, and described scraping blade active line is positioned on the intersection on the outside surface of glass 20 and windscreen wiper plane.
4. the angle of attack is to sweep the district at windscreen wiper, the angle on the glass active line between the vertical plane of the glass surface normal of certain point and the second rotating shaft 12.
5. linear angle of attack gradient be windscreen wiper in optional position on glass, the angle of attack variation gradient of each location point on the glass active line, the i.e. ratio of the arc length of the glass active line between adjacent 2 angle of attack variation and these 2 on the glass active line.
6. angle property angle of attack gradient be at windscreen wiper in rotation process, the angle of attack variation gradient of certain point on the glass active line, namely on the adjacent glass active line with separately interior end points between 2 the angle of attack equating of arc length and the ratio between the angle on this plane, two adjacent glass active line places.
7. the windscreen wiper curvature of glass is glass effect curvature of a curve, the i.e. radius-of-curvature of the upper arbitrfary point of glass active line.
8. the curvature gradient refers to windscreen wiper in optional position on glass, the radius-of-curvature variable gradient of each location point on the glass active line, the i.e. ratio of the glass active line length between the variation of adjacent 2 radius-of-curvature and these 2 on the glass active line.
In order to illustrate in greater detail inventive point of the present invention, below elaborate the detection method of the fitness of a kind of glass of the present invention 20 and windscreen wiper 10.Described windscreen wiper 10 comprises swing arm 14, scraping arm 15 and scraping blade 16, described swing arm 14 is rotationally connected with vehicle body by the first rotating shaft 11, described swing arm 14 and described scraping arm 15 are rotationally connected by the second rotating shaft 12, and described scraping arm 15 and described scraping blade 16 are rotationally connected by the 3rd rotating shaft 13.Simplify modeling process, suppose scraping blade unlimited flexibility in windscreen wiper plane glass of fitting fully, scraping blade is incompressible, and windscreen wiper length is constant, the whole rigidity of windscreen wiper system.
Shown in the process flow diagram among Fig. 2, the method comprises the steps:
1) windscreen wiper to be detected 10 and glass 20 are positioned on the worktable, gather the geometric data that described windscreen wiper 10 and described glass 20 cooperates by reverse-engineering, described geometric data is transferred to image processing module; Described geometric data comprises the locus of described the first rotating shaft 11, the second rotating shaft 12, the 3rd rotating shaft 13 and scraping blade active line 161 and the outside surface of described glass 20, and described scraping blade active line 161 is the active lines when fitting with the outside surface of glass 20 on the scraping blade 16;
For windscreen wiper 10 and glass 20 prints, utilize the 3D digitalized measuring apparatus, measure accurately and rapidly the some data of the outside surface of the locus of the first rotating shaft 11, the second rotating shaft 12, the 3rd rotating shaft 13, scraping blade active line 161 of windscreen wiper 10 and glass 20, put data processing, curved surface establishment, the image processing module that reaches the CAD geometry designs after the modification is constructed the 3D dummy model.
In order just can to analyze the fitness of windscreen wiper and glass in the design phase, avoid later development unsuccessfully to cause huge economic loss, can be directly that Computer Design is good geometric data transfers to image processing module and processes.
When 2) determining that scraping blade is in each position on the outside surface of glass formed glass active line.
In scraping arm wiper process, to scrape on the outside surface that sector-meeting generation plastic deformation is fitted in glass, scraping blade effect curvature of a curve changes along with the variation of the curvature of glass outer surface, but the arc length of scraping blade active line remains unchanged.In scraping blade plastic deformation process, there is the relative position of a reference point and the 3rd rotating shaft can not change on the scraping blade active line, that is to say the scraping blade active line around this reference point generation plastic deformation, this reference point is the shortest unique point of distance that arrives the intersection point on described the 3rd rotating shaft and windscreen wiper plane on the scraping blade active line.Therefore, can be according to scraping blade under state of nature, when namely scraping blade did not contact glass outer surface, two end points of scraping blade active line divided the arc length that is clipped to this reference point, extrapolated scraping blade two positions of end points on the outside surface of glass under fit-state.
As shown in Figure 3 and Figure 4, the present invention simulates the windscreen wiper action by the constructed 3D dummy model of image processing module, when described scraping blade active line 161 when the first rotating shaft 11 turns to each position in the travel range, described scraping blade active line 161 is rotated so that A point bee-line to the outside surface of described glass 20 in the windscreen wiper plane equals d around described the second rotating shaft 12
1, arriving at this moment the shortest any of A point distance on the intersection of the outside surface of windscreen wiper plane and glass 20 is the E point; On described intersection, choose the F point away from an end of the first rotating shaft 11, so that the arc length between F point and the E point equals d
2End near the first rotating shaft 11 on described intersection is chosen the G point, so that the arc length between G point and the E point equals d
3Segment of curve on the described intersection between F point and the G point is exactly the glass active line.
Wherein, the A point is described the 3rd rotating shaft 13 and the intersection point on windscreen wiper plane, B point be on the scraping blade active line 161 to the A point apart from the shortest a bit, the C point is away from the end points of the first rotating shaft 11 on the scraping blade active line 161, the D point is the end points of close the first rotating shaft 11 on the scraping blade active line 161, d
1Be the line segment length between A point and the B point, d
2Be the arc length between B point on the scraping blade active line 161 and the C point, d
3For between B point on the scraping blade active line 161 and the D point arc length, described windscreen wiper plane is the plane at scraping blade active line 161 places.
3) find the solution the windscreen wiper parameters in series, comprise the angle of attack, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient.
As shown in Figure 5, the P point refers to that the scraping blade active line has rotated a angle, is the point of L in glass active line arc length between the end points in the glass active line.
The method for solving of the angle of attack: take up an official post at described glass active line and to get 1 P, obtain respectively the vertical plane of the second rotating shaft 12 and cross the P point perpendicular to the normal of the outside surface of glass 20, the angle of obtaining at last between described vertical plane and the described normal is the angle of attack.
The method for solving of linear angle of attack gradient: as shown in Figure 6, the glass active line take up an official post get 1 P and and the P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, then the P angle of attack gradient of ordering=(a1-a2)/L1.
The method for solving of angle property angle of attack gradient: as shown in Figure 7, two adjacent glass active lines get with separately interior end points between 2 points that equate of arc length, the angle on plane, described adjacent two glass active line places is a4, obtain this angle of attack of 2 and be respectively a2 and a3, wherein the angle of attack be a2 a bit be the P point, the P angle property angle of attack gradient of ordering=(a3-a2)/a4 then.
The method for solving of radius-of-curvature: refer in particular to the radius-of-curvature that windscreen wiper sweeps the arbitrfary point on the middle glass active line.The radius-of-curvature method that the upper P of approximate solution glass active line is ordered is: described glass active line take up an official post get 1 P and with the P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered.
The method for solving of curvature gradient: as shown in Figure 8, the glass active line take up an official post get 1 P and and the P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, then the P curvature gradient of ordering=(r6-r5)/L2.
4) parameters such as the angle of attack, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient are carried out index and detect, whether in setting range, judge whether the fitness of windscreen wiper 10 and glass 20 meets the demands according to described supplemental characteristic.
The angle of attack General Requirements of glass profile will cause windscreen wiper steadily to scrape if the angle of attack goes beyond the scope in ± 9 degree scopes, makes easily windscreen wiper that shake and abnormal sound occur.
The angle property angle of attack gradient General Requirements of glass profile if angle property angle of attack gradient goes beyond the scope, will cause windscreen wiper steadily to scrape in ± 0.5 degree/degree scope, make easily windscreen wiper that shake and abnormal sound occur.
The linear angle of attack gradient General Requirements of glass profile if linear angle of attack gradient is excessive, will cause the force unbalance that is subjected to of windscreen wiper both sides in ± 0.04 degree/millimeter scope, also make easily windscreen wiper that shake and abnormal sound occur.
The radius-of-curvature General Requirements of the glass active line of glass profile is in 1500 millimeters to 15000 millimeters scopes, if radius-of-curvature is excessive, the both sides of windscreen wiper can not touch glass, and it is unclean that the windscreen wiper two ends are swept; If radius-of-curvature is too small, the centre of windscreen wiper can not touch glass, makes easily the windscreen wiper centre sweep unclean.
Glass profile upper glass effect curvature of a curve gradient General Requirements if the curvature gradient goes beyond the scope, also makes windscreen wiper can not touch glass in ± 27 millimeters/millimeter scopes easily, and windscreen wiper can not well sweep glass like this.
If windscreen wiper angle of attack parameters in series all in setting range, judges that then glass 20 and windscreen wiper 10 fitnesss meet the demands; If windscreen wiper angle of attack parameters in series exceeds setting range, then add up windscreen wiper angle of attack parameters in series and exceed the zone of setting range as the defect area of glass 20.Analysis result can be used for design and the modification of glass profile, also can be used for the design windscreen wiper and judge whether glass is fit to the assembling windscreen wiper.
The curve map of windscreen wiper angle of attack parameters in series can be realized by the manual mode that adds hand computation of drawing, but manual mode work is more loaded down with trivial details, wastes time and energy.The present invention has developed corresponding software to this, software mainly comprises input, exports and analyzes three parts and forms.
The input of this software comprises the quantity that is evenly arranged on rain shaving blade number of positions that the outside surface, glass active line rotational angle, needs of the first rotating shaft, the second rotating shaft, the 3rd rotating shaft, scraping blade active line, glass are arranged and the scraping blade active line a little.The output of this software comprises the angle of attack value of each layout points on each windscreen wiper placement location, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient.This software Output rusults show various ways, only list in the accompanying drawing of the present invention wherein a kind of, such as the curve map of Fig. 6 to the windscreen wiper parameters in series that Figure 10 shows that certain glass profile.
As shown in Figure 9, be 0 in the 700mm scope to the arc length of interior end points at the glass active line, choose a point every 35mm, horizontal ordinate represents the glass active line rotational angle of this point, ordinate represents the angle of attack of this point, and curve represents the relation of the angle of attack and the glass active line rotational angle of these points.The angle of attack of all layout points all in ± 9 degree scopes, meets the requirements.
As shown in figure 10, in glass active line rotational angle is 0 ° to 80 ° scope, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on the glass active line arrives the arc length of interior end points, ordinate represents linear angle of attack gradient, and curve represents the linear angle of attack gradient of the layout points on these glass active lines and the relation that this point arrives the arc length of interior end points.The linear angle of attack gradient of all layout points all in ± 0.04 degree/millimeter scope, meets the requirements.
As shown in figure 11, be 0 in the 700mm scope to the arc length of interior end points at the glass active line, choose a point every 35mm, horizontal ordinate represents the glass active line rotational angle of this point, ordinate represents the angle property angle of attack gradient of this point, and curve represents the angle property angle of attack gradient of these points and the relation of glass active line rotational angle.The angle property angle of attack gradient of all layout points all in ± 0.5 degree/degree scope, meets the requirements.
As shown in figure 12, in glass active line rotational angle is 0 ° to 80 ° scope, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on the glass active line arrives the arc length between the interior end points, ordinate represents the radius-of-curvature of this layout points, and curve represents the radius-of-curvature of the layout points on these glass active lines and the relation that this point arrives the arc length between the interior end points.The radius-of-curvature of all layout points all in 1500 millimeters to 15000 millimeters scopes, meets the requirements.
As shown in figure 13, in glass active line rotational angle is 0 ° to 80 ° scope, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on the glass active line arrives the arc length between the interior end points, ordinate represents the curvature gradient of this layout points, and curve represents the curvature gradient of the layout points on these glass active lines and the relation that this point arrives the arc length between the interior end points.The curvature gradient of all layout points all in ± 27 millimeters/millimeter scopes, meets the requirements.
The parameters such as the angle of attack of this vehicle windshield profile, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature, curvature gradient are all in scope of design, so the fitness of this windshield and windscreen wiper meets the requirements.
Above content specifically describes the detection method of the fitness of a kind of windshield of the present invention and windscreen wiper; but the present invention is not subjected to the limitation of embodiment content described above; so any improvement, simplification, equivalent modifications and replacement etc. that all foundations technical essential of the present invention is carried out all belong to the scope of protection of the invention.
Claims (10)
1. the detection method of the fitness of a glass and windscreen wiper, described windscreen wiper (10) comprises swing arm (14), scraping arm (15) and scraping blade (16), described swing arm (14) is rotationally connected by the first rotating shaft (11) and vehicle body, described swing arm (14) and described scraping arm (15) are rotationally connected by the second rotating shaft (12), described scraping arm (15) and described scraping blade (16) are rotationally connected by the 3rd rotating shaft (13), and it is characterized in that: the method comprises the steps:
Step 1: windscreen wiper to be detected (10) and glass (20) are positioned on the worktable according to assembly relation, gather the geometric data of described windscreen wiper (10) and described glass (20) cooperation by reverse-engineering, described geometric data is transferred to image processing module, and described geometric data forms three-dimensional model after treatment in image processing module;
Step 2: by the action of the three-dimensional model in described image processing module simulation windscreen wiper (10) on the outside surface of glass (20), thereby determine scraping blade (16) when being in diverse location on the outside surface of glass (20) formed glass active line;
Step 3: the supplemental characteristic of finding the solution the fitness that affects glass and windscreen wiper according to the glass active line of determining in the step 2, described supplemental characteristic comprises the angle of attack, and the described angle of attack is the angle between the vertical plane of the glass surface normal of certain point on the glass active line and the second rotating shaft (12);
Step 4: described supplemental characteristic is carried out index detect, whether in setting range, judge whether the fitness of windscreen wiper (10) and glass (20) meets the demands according to described supplemental characteristic.
2. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: the geometric data described in the step 1 comprises the locus of described the first rotating shaft (11), the second rotating shaft (12), the 3rd rotating shaft (13) and scraping blade active line (161) and the outside surface of described glass (20), the active line when described scraping blade active line (161) is the upper outside surface applying with glass (20) of scraping blade (16).
3. the detection method of the fitness of glass according to claim 2 and windscreen wiper, it is characterized in that: the method for the definite glass active line described in the step 2 is: at first described scraping blade active line (161) is turned to each position in the travel range around the first rotating shaft (11), then described scraping blade active line (161) is rotated so that A point bee-line to the outside surface of described glass (20) in the windscreen wiper plane equals d around described the second rotating shaft (12)
1, arriving at this moment the shortest any of A point distance on the intersection of the outside surface of windscreen wiper plane and glass (20) is the E point; On described intersection, choose the F point away from an end of the first rotating shaft (11), so that the arc length between F point and the E point equals d
2End near the first rotating shaft (11) on described intersection is chosen the G point, so that the arc length between G point and the E point equals d
3Segment of curve on the described intersection between F point and the G point is exactly the glass active line;
Wherein, the A point is the intersection point on described the 3rd rotating shaft (13) and windscreen wiper plane, the B point is that scraping blade active line (161) is upper to the shortest a bit of A point distance, the C point is the upper end points away from the first rotating shaft (11) of scraping blade active line (161), the D point is the upper end points near the first rotating shaft (11) of scraping blade active line (161), d
1Be the line segment length between A point and the B point, d
2Be the arc length between the upper B point of scraping blade active line (161) and the C point, d
3For between the upper B point of scraping blade active line (161) and the D point arc length, described windscreen wiper plane is the plane at scraping blade active line (161) place.
4. the detection method of the fitness of glass according to claim 1 and windscreen wiper is characterized in that: in index detected, the setting range of the described angle of attack was in ± 9 degree scopes.
5. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: the supplemental characteristic described in the step 3 also comprises linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient; Described linear angle of attack gradient is the ratio of the arc length of the glass active line between angle of attack variation adjacent 2 on the glass active line and these 2; Described angle property angle of attack gradient be on the adjacent glass active line with separately interior end points between 2 the angle of attack equating of arc length and the ratio between the angle on this plane, two adjacent glass active line places; Described radius-of-curvature is the radius-of-curvature of upper certain point of glass active line; Described curvature gradient is the ratio of the arc length of the glass active line between the variation of radius-of-curvature adjacent 2 on the glass active line and these 2.
6. the detection method of the fitness of glass according to claim 5 and windscreen wiper, it is characterized in that: in index detects, the setting range of described linear angle of attack gradient is in ± 0.04 degree/millimeter scope, the setting range of described angle property angle of attack gradient is in ± 0.5 degree/degree scope, the setting range of described radius-of-curvature is 1500 millimeters to 15000 millimeters, and the setting range of described curvature gradient is in ± 27 millimeters/millimeter scopes.
7. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: the method for finding the solution the angle of attack in the step 3 is: take up an official post at described glass active line and get 1 P, obtain respectively the vertical plane of the second rotating shaft (12) and cross the P point and perpendicular to the normal of the outside surface of glass (20), the angle of obtaining at last between described vertical plane and the described normal is the angle of attack.
8. the detection method of the fitness of glass according to claim 5 and windscreen wiper, it is characterized in that: the method for solving of described linear angle of attack gradient is: the glass active line take up an official post get 1 P and and the P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, then the P angle of attack gradient of ordering=(a1-a2)/L1; The method for solving of described angle property angle of attack gradient is: two adjacent glass active lines get with separately interior end points between 2 points that equate of arc length, the angle on plane, described adjacent two glass active line places is a4, obtain this angle of attack of 2 and be respectively a2 and a3, wherein the angle of attack be a2 a bit be the P point, the P angle property angle of attack gradient of ordering=(a3-a2)/a4 then; The method for solving of described radius-of-curvature is: described glass active line take up an official post get 1 P and with the P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered; The method for solving of described curvature gradient is: the glass active line take up an official post get 1 P and and the P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, then the P curvature gradient of ordering=(r6-r5)/L2.
9. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: in described step 4, if described supplemental characteristic exceeds setting range, then add up described supplemental characteristic and exceed the zone of setting range as the defect area of glass (20).
10. the detection method of the fitness of glass according to claim 1 and windscreen wiper is characterized in that: the geometric data described in the step 1 is replaced the data of using reverse-engineering to gather with the data of Computer Design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546134.4A CN102967276B (en) | 2012-12-17 | 2012-12-17 | Method for detecting degree of adaptability between glass and windscreen wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546134.4A CN102967276B (en) | 2012-12-17 | 2012-12-17 | Method for detecting degree of adaptability between glass and windscreen wiper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102967276A true CN102967276A (en) | 2013-03-13 |
| CN102967276B CN102967276B (en) | 2014-12-03 |
Family
ID=47797579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546134.4A Active CN102967276B (en) | 2012-12-17 | 2012-12-17 | Method for detecting degree of adaptability between glass and windscreen wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102967276B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323678A (en) * | 2018-09-28 | 2019-02-12 | 上汽大众汽车有限公司 | A kind of capacity checking device and check method |
| CN110044305A (en) * | 2019-04-03 | 2019-07-23 | 信义汽车玻璃(深圳)有限公司 | Glass curvature measuring device and glass curvature measuring method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272468B (en) * | 2018-09-28 | 2020-10-16 | 上汽大众汽车有限公司 | Curved surface checking device and curved surface checking method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0893319A2 (en) * | 1997-07-22 | 1999-01-27 | Nippon Sheet Glass Co. Ltd. | Wiper control apparatus |
| KR20010111397A (en) * | 2000-06-08 | 2001-12-19 | 이계안 | Method for measuring the lift amount of a wiper |
| CN201392191Y (en) * | 2009-04-20 | 2010-01-27 | 吴永芝 | Wiping brush angle detecting device of automotive vehicle windscreen wiper |
-
2012
- 2012-12-17 CN CN201210546134.4A patent/CN102967276B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0893319A2 (en) * | 1997-07-22 | 1999-01-27 | Nippon Sheet Glass Co. Ltd. | Wiper control apparatus |
| KR20010111397A (en) * | 2000-06-08 | 2001-12-19 | 이계안 | Method for measuring the lift amount of a wiper |
| CN201392191Y (en) * | 2009-04-20 | 2010-01-27 | 吴永芝 | Wiping brush angle detecting device of automotive vehicle windscreen wiper |
Non-Patent Citations (1)
| Title |
|---|
| 周磊: "电机摆角检测浅谈", 《电动工具》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323678A (en) * | 2018-09-28 | 2019-02-12 | 上汽大众汽车有限公司 | A kind of capacity checking device and check method |
| CN110044305A (en) * | 2019-04-03 | 2019-07-23 | 信义汽车玻璃(深圳)有限公司 | Glass curvature measuring device and glass curvature measuring method |
| CN110044305B (en) * | 2019-04-03 | 2024-02-02 | 信义汽车玻璃(深圳)有限公司 | Glass curvature detection device and glass curvature detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102967276B (en) | 2014-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104246825B (en) | For the method and apparatus of the on-line calibration of vehicle camera | |
| CN102636093B (en) | Hub characteristic detecting device for production line | |
| CN102207441B (en) | Automatic detection method of static contact angle and dynamic contact angle | |
| CN102967276B (en) | Method for detecting degree of adaptability between glass and windscreen wiper | |
| CN104132817A (en) | Dynamic intelligent detecting platform and method for motor vehicle external characteristics | |
| CN103759952A (en) | Testing device and method for automobile wiper | |
| CN108317999B (en) | Communication iron tower inclination angle measuring method based on inertial sensor | |
| CN103134441A (en) | Large wind tunnel flexible spraying pipe laser tracking measurement method | |
| CN103587528A (en) | Lane change process crossing moment prediction device and method | |
| CN110306414B (en) | Pavement structure depth detection method | |
| CN106644532A (en) | Window wiper parameter detection device | |
| CN106324635B (en) | A kind of straight line traveling detection method and device based on satellite navigation and positioning | |
| CN201812368U (en) | Testing device for lane departure warning system | |
| CN102778314B (en) | Automatic moment detection machine of steering and suspension spherical hinge assembly and control method | |
| CN107132057A (en) | Motor vehicle real vehicle windscreen wiper pilot system and test method | |
| CN101294872A (en) | Vehicle four wheel locating parameter detecting mathematical model based on computer vision | |
| CN112764131A (en) | Test method for rainfall calibration | |
| CN107064538A (en) | A kind of vehicle speed measurement method | |
| CN103177192B (en) | Five-hole probe angular characteristics curve data processing method | |
| CN105783970A (en) | Digitalization identification method of motormeter pointer | |
| JP4691325B2 (en) | Evaluation method of road surface | |
| CN112614371A (en) | Vehicle automatic driving method, device, electronic equipment and computer storage medium | |
| CN101349536A (en) | Instrument for measuring shock angle of wiper | |
| CN111103533A (en) | Vision-based ten-position rotary dial switch reset system and reset method | |
| CN110820495A (en) | Method and system for detecting flatness of road surface of non-motor vehicle and computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |