CN101337492A - New method of automotive tire pressure detection and safe identification - Google Patents

Abstract

The invention provides a method for correspondingly marking the most protuberant part of the deformed rubber corresponding to the outer side of an automobile tire with a white fluorescent paint line and coating a red fluorescent paint line in the position which is one second distance below from the white line as a safety mark according to the allowable normal inflation pressure standard range calibrated when the tires of sedans and miniature vehicles leave the factory (for example, the allowable normal inflation pressure standard ranges of a 1.5t FIAT sedan, a 0.6t CHANG'AN STAR miniature minibus and a 1.0t LINGYANG sedan are respectively 2.3 to 2.8 Kg/cm<2>, 2.2 to 2.5Kg/cm<2> and 2.2 to 2.6Kg/cm<2>). When the red fluorescent paint line disappears and the most protuberant part of the deformed rubber on the outer side of the tire is above the white fluorescent paint line, the tire pressure is indicated to be too low, and measures, such as inflation, tire repair, etc., should be carried out. When the most protuberant part is below the white fluorescent paint line and above the red fluorescent paint line, the tire pressure is indicated to be too high, and the measure of deflation should be carried out. The method has the advantages of visibility, rapidness, convenience, safety, practicality and low cost, and is easily accepted by drivers and tire manufacturers, completed at one time in the tire manufacturer and easily generalized and applied.

Description

The new mode of automotive tire pressure detection and secure ID

Technical field

The present invention relates to automobile and safety engineering field, particularly relate to the method for automotive tire pressure detection and secure ID.

Background technology

Along with the development of China's economic society and the raising of living standards of the people, increasing family has the ability to buy automobile, particularly car.When automobile offered convenience for people's life and trip, the safety performance of automobile also became the emphasis that the customer pays close attention to.Statistics according to 2007 annual safety traffic supervisory management zones in all parts of the country, the traffic accident of express highway 46% is owing to the tire et out of order causes, wherein blow out one and just account for 70% of accident total amount, abnormal tire pressure is the one of the main reasons that causes traffic accident.The accident hazard of blowing out is big, and car crash probability height has caused massive losses for family, unit and society.Therefore, how to improve the security alarm mechanism of tire effectively? the generation of how avoiding and trying to forestall traffic accidents effectively? guarantee driving safety? become the urgent task that automotive engineering faces, also by various circles of society's extensive concern.

The inflation pressure of tire is that the permission quality according to tire, the classification and the handling characteristics of tire determine that by series of computation and test back this mainly is to be finished by tire production unit.If tire pressure is bigger than normal, inside tires pressure increases, and ground contact area reduces, and causes crown wearing and tearing aggravation, and traction is descended, and can cause the crown serious wear in travelling, and just may blow out.If tire pressure is less than normal, the deflection of tire increases, the distortion of tire side is bigger, crown position inwardly protruding, make the wearing and tearing aggravation of wheel shoulder position, the friction force when travelling between tire and the road surface increases, and makes the temperature build-up of tire, aging and the delamination of accelerating pulley tire rubber also will cause wheel rim to break and blow out.Therefore, tire pressure is one of key factor that influences automotive safety, and whether the pressure of tire is normal, directly affects the safety and the oil consumption of running car.

According to pertinent data report both domestic and external, the detection mode of tire pressure has two kinds, direct-type detects with indirect type and detects, it is to utilize electronic pressure transmitter to come the detection wheel air pressure that direct-type detects, it then is the running number of 4 tires on the statistics car that indirect type detects, and calculates the pressure variation that tyre in operation produced and reaches the purpose of pressure of tire monitoring.Relevant motor tire electronics air pressure testing product all depends on import in enclosing, and just the part high-grade car just is equipped with such detecting instrument.Domestic research and application in this field at present also belongs to follow-up study or dependence chaufeur and maintainer's experience etc.

The subject matter of tire checking existence at present has:

1) to detect error big for direct-type, and poor stability needs repeatedly high-frequency to proofread and correct and overcomes this problem, and the costing an arm and a leg of every electronic detector, and only is confined to high-grade car;

2) indirect type detects needs suitable complexity and H.D Computing, and it is big to detect error, and costing an arm and a leg of every monitor also only is confined to high-grade car simultaneously;

3) electronic pressure transmitter is subjected to the influence that running environment changes, poor stability easily;

4) lack in cost height, service life, inconvenience is installed, be not easy to be accepted application difficulty etc. by consumers in general.

Summary of the invention

Therefore, in the face of the problem that above-mentioned motor tire exists, motor tire detection new mode that the present invention proposes and secure ID are towards the popular low and middle-grade cars, minicar and the truck that have a large capacity and a wide range.Can overcome the deficiency of existing tire checking method, and the traditional detection way that relies on chaufeur and maintainer's experience, the new mode that the invention vehicle tyre safety detects and effective and safe sign.Simultaneously, reach the security alarm mechanism that improves tire, the generation of prevention or minimizing traffic accident.

It is that the star mini van in Fiat's car of 1.5 tons, 1.0 tons of antelope cars and 0.6 ton of Chang'an is an implementation column that the present invention selects representative deadweight, and used fluorescence painting color is red and white.The concrete principle of motor tire travel conditions as shown in Figure 1.A represents-and tire pressure is normal, and wear on tyres is even; B represents-low tyre or overload that wear on tyres is serious; C represents-and tire pressure is excessive, and tire-contact area is little.

The scope of the required normal inflation of being indicated when dispatching from the factory according to motor tire is 2.3～2.8Kg/cm as 1.5 tons of Fiat's cars², 1.0 tons of antelope cars are 2.2～2.6Kg/cm², the star mini van in 0.6 ton of Chang'an is 2.2～2.5Kg/cm², the height that the position is protruded in the corresponding motor tire outside most is the standard Deformation Height, and at the most outstanding position coated with the white fluorescent painted line, 1/2 place's coated red fluorescence painted line is as the secure ID line below white line.Specifically as shown in Figure 2.

When red fluorescent paint heading line off, tire outside rubber deformation protrudes the position most when white fluorescent lacquer line is above, represents that then tire pressure is on the low side, need take measures such as aerating or tire patching, specifically as shown in Figure 3.

When tire outside rubber deformation protrudes the position most below white fluorescent lacquer line, when red fluorescence lacquer line is above, represent that then tire pressure is higher, need take the venting measure, specifically as shown in Figure 4.

Adopt the height identification of fluorescence painted line, have reflecting effect, make the safety detection of tire not be subjected to the influence and the restriction of daytime and evening and daylight power as motor tire rubber safety deformation position.Simultaneously, above-mentioned safety detection and sign can directly perceived, quick and easy, practicably in time remind chaufeur to take Corresponding Countermeasures and measure, and cost of manufacture is cheap, is accepted by vast chaufeur and tire production unit easily.

Experimental result of the present invention and analysis are discussed:

(1) according to the mutual action notion of power in the physics, the pressure notion of air, with and with the Changing Pattern of external condition factor, the effect and the variation phenomenon of tire gaseous tension carried out theoretical analysis and explanation, specifically as shown in Figure 5.

The suffered bearing force of F1-gas; F2-gas pressure; The inner surface area of supposing motor tire is certain.

When F2=F1, the suffered upper and lower power of motor tire gas is cancelled each other, and the height that protrudes the position most of the tire outside rubber deformation that shows is the standard Deformation Height, and promptly the most outstanding position of tire and white fluorescent lacquer line coincide, the expression tire pressure is normal, and is consistent with Fig. 2 phenomenon.

When F2＞F1, pressure suffered on the motor tire internal unit area increases, cause the distortion of rubber for tire to increase, show as the height rising that tire outside rubber protrudes the position most, it is red fluorescence lacquer heading line off, tire outside rubber deformation protrudes the position most on white fluorescent lacquer line, represents that then tire pressure is on the low side, and is consistent with Fig. 3 phenomenon.

When F2＜F1, suffered pressure reduces on the motor tire internal unit area, cause the distortion of rubber for tire to reduce, show as tire outside rubber deformation and protrude the position most below the white fluorescent lacquer line, more than the red fluorescence lacquer line, the expression tire pressure is higher, need take the venting measure, consistent with Fig. 4 phenomenon.

The overvoltage of motor tire or under-voltage be the major reason that causes the tire safety accident, understand and the air pressure situation of control tire will help improving the safe application performance of tire.Adopt the sign of fluorescence paint, have reflecting effect, make the safety detection of tire not be subjected to the influence and the restriction of daytime and evening and daylight power as motor tire rubber deformation safe condition.The one-to-one relationship of method of inspection of the present invention and secure ID and motor tire gaseous tension, the Changing Pattern research by tire gaseous tension and tire outside rubber protrude the position Deformation Height most further obtains experiment and checking.Characteristics such as new mode has directly perceived, fast, convenient and safe practicality and cost is low are accepted by vast chaufeur and tire production unit easily, also are easy to once finish and promote the use of in tire production unit.Also have simultaneously great social significance and application prospect.

Description of drawings

Fig. 1 represents the concrete principle of motor tire travel conditions, and M represents to protrude most the position among Fig. 1, and N represents tire normal deformation standard baseline, and A represents that tire pressure is normal, and wear on tyres is even; B represents low tyre or overload, and wear on tyres is serious; C represents that tire pressure is excessive, and tire-contact area is little.

Fig. 2 represents tire standards distortion sign, and W represents to protrude most position and white fluorescent lacquer line among Fig. 2, and R represents red fluorescence lacquer line.

Fig. 3 represents that tire pressure is on the low side, and P represents the most outstanding position among Fig. 3, and W represents white fluorescent lacquer line.

Fig. 4 represents that tire pressure is higher, and X represents the rubber deformation position, and W represents white fluorescent lacquer line, and R represents red fluorescence lacquer line.

Fig. 5 represents motor tire gas force diagram, and among Fig. 5, F1 represents the suffered bearing force of gas; F2 represents the gas pressure, and Q represents gas in the tire, and T represents the rubber tyre sidewall.

Fig. 6 represents the corresponding relation of 1.5 tons of car front and rear wheel tire gaseous tensions and tire white line, red line height change.Abscissa is gaseous tension/kg/cm², ordinate is outside height/mm, is the experiment of Fiat's car (1.5 tons) front and rear wheel air pressure.

Fig. 7 represents the corresponding relation of 1 ton of passenger car tire gaseous tension and tire white line, red line height change.Abscissa is gaseous tension/kg/cm², ordinate is outside height/mm, is the experiment of antelope car (1 ton) trailing wheel air pressure.

Fig. 8 represents the corresponding relation of the variation of 0.6 ton of minicar tire gaseous tension and tire white line, red line height.Abscissa is gaseous tension/kg/cm², ordinate is outside height/mm, is star utility van (0.6 ton) the trailing wheel air pressure experiment in Chang'an.

The specific embodiment

Below, illustrate in greater detail the present invention by enumerating embodiment.But the present invention is not subjected to the restriction of these embodiment, and scope of the present invention proposes in the appended claims.

The scope of the required normal inflation of being indicated when dispatching from the factory according to motor tire is 2.3～2.8Kg/cm as 1.5 tons of Fiat's cars², 1.0 tons of antelope cars are 2.2～2.6Kg/cm², the star mini van in 0.6 ton of Chang'an is 2.2～2.5Kg/cm², the height that the position is protruded in the corresponding motor tire outside most is the standard Deformation Height, and at the most outstanding position coated with the white fluorescent painted line, 1/2 place's coated red fluorescence painted line is as the secure ID line below white line.Specifically as shown in Figure 2.

When red fluorescent paint heading line off, tire outside rubber deformation protrudes the position most when white fluorescent lacquer line is above, represents that then tire pressure is on the low side, need take measures such as aerating or tire patching, specifically as shown in Figure 3.

When tire outside rubber deformation protrudes the position most below white fluorescent lacquer line, when red fluorescence lacquer line is above, represent that then tire pressure is higher, need take the venting measure, specifically as shown in Figure 4.

In order to test and explore the one-to-one relationship of white fluorescent lacquer line, the height and position variation of red fluorescence lacquer line and tire gaseous tension size, systematic survey, analysis and the statistics of data have been carried out according to the analysis method scheduling theory of data in the mathematics, and be depicted as composite bar chart, specifically shown in Fig. 6,7,8, the detailed data tire pressure observed data table of seeing Appendix.

By Fig. 6,7,8 explanations, the height change at motor tire outside white wire, red line position is one by one corresponding to the motor tire variation of gas pressure, and proportional routine variation relation, can be used as the indirect sign of detection wheel nausea body pressure size.

Therefore, the present invention has overcome the deficiency that exists in the present tire checking, and the conventional approach that relies on chaufeur and maintainer's experience to judge, new mode that the invention vehicle tyre safety detects and effective and safe sign, possess features such as directly perceived, efficient and convenient, safety and cost be low, help chaufeur in time to understand and accurately grasp the safety performance and the usage condition of tire, thereby effectively control the generation of tyre explosion accident.Effectively improve and improve the security alarm mechanism of tire, the generation of avoiding He effectively trying to forestall traffic accidents, guarantee driving safety, in all kinds of vehicle industries of automobile, and the motor tire production unit is promoted the use of.

Claims (4)

1, the method of a kind of automotive tire pressure detection and secure ID, it is characterized in that, according to car, the normal inflation of being demarcated during the mini van tire shipment allows standard range, corresponding colour code is done at protrusion position at the cooresponding rubber deformation in the motor tire outside, white fluorescent painted line for example, simultaneously, 1/2 place below white line makes corresponding another colour code, for example coated red fluorescent paint line is as secure ID, when colour code red fluorescence lacquer heading line off for example, tire outside rubber deformation protrudes the position most at another colour code when for example white fluorescent lacquer line is above, represent that then tire pressure is on the low side, need take measures such as aerating or tire patching; When tire outside rubber deformation protrude most the position another colour code for example below the white fluorescent lacquer line, a colour code is when for example red fluorescence lacquer line is above, represents that then tire pressure is higher, need take the venting measure.

2, the method for a kind of automotive tire pressure detection and secure ID, it is characterized in that method of inspection and secure ID and motor tire gaseous tension have one-to-one relationship, Changing Pattern research by tire gaseous tension and tire outside rubber protrude the position Deformation Height most further obtains experiment and checking.

3, the method for a kind of automotive tire pressure detection and secure ID is characterized in that being applied in time remind chaufeur to take Corresponding Countermeasures and measure according to applying the sign change in color.

4, the method for a kind of automotive tire pressure detection and secure ID is characterized in that this method of inspection and secure ID are applied to tire production unit and car production unit.

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