CN104191914A - Tyre burst state detecting method for following car - Google Patents
Tyre burst state detecting method for following car Download PDFInfo
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- CN104191914A CN104191914A CN201410470163.6A CN201410470163A CN104191914A CN 104191914 A CN104191914 A CN 104191914A CN 201410470163 A CN201410470163 A CN 201410470163A CN 104191914 A CN104191914 A CN 104191914A
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Abstract
The invention discloses a tyre burst state detecting method for a following car. The method comprises the following steps: data of tyre pressure of four tyres and axle load bearing of corresponding axles of the tyres are respectively collected by a data collecting device; an automatic steering control analysis system analyzes a tyre burst state according to the data collected by a data collecting device and operates and controls a state control device of the following car. The tyre burst state detecting method for the following car disclosed by the invention is simple in judgment process of the tyre burst state, and high in judgment accuracy.
Description
Technical field
The method of inspection field that the present invention relates to blow out, more particularly, relates to a kind of with speeding automobile flat tire state testing method.
Background technology
Automobile is the motoring condition that rear car is followed front truck with speeding, and front truck and rear car are reached information communication, and rear car is according to the information of front truck, and car parameter differences before and after contrast, is scaled rear car and drives scheme and realize automatic Pilot.Automatically, with speeding in driving technique, with speeding, automobile travels according to the parameter of travelling of front truck.Vehicle, travelling in way, has a lot of emergency situations, for example: blow out, and the consequence that vehicle is blown out is in the process of moving very serious.With speeding in fleet, more with speeding automobile in order to hold on the road of certain distance, safety traffic distance between adjacent two vehicles can shorten to 20 meters even shorter, and vehicle causes automobile to lose handling required time approximately 3 seconds in the process of running at high speed because blowing out, this is substantially identical with driving brake response time, and the safety control realizing following the fleet of speeding in so short distance is very important, and can ensure to realize safe driving in very short distance with the fleet of speeding.
The existing method to the monitoring of blowing out has a lot, and one, utilizes the wheel speed of each wheel is monitored, and when the rate of change of certain wheel reaches certain value and all the other wheels are not made corresponding reaction, judges and blows out; Its two, determine real-time natural frequency and the effective radius characteristic of tire, when the real-time natural frequency of certain tire is lower than setting threshold and calculate effective radius characteristic and be less than setting threshold, and other tire is all in range of normal value time, judges this tyre explosion.In method one, judge and blow out have at that time misjudgment by the velocity variations of wheel, accuracy rate is not high.In method two, more loaded down with trivial details to the deterministic process of the situation of blowing out.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of with speeding automobile flat tire state testing method, and its deterministic process to the situation of blowing out is simple, and accuracy of judgement degree is high.
The present invention addresses the above problem adopted technical scheme:
A kind of with speeding automobile flat tire state testing method, comprising:
The data acquisition unit respectively wheel shaft load-bearing of the tire pressure to 4 tires and wheel shaft corresponding to each tire carries out data acquisition;
Automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection and the behavior control device of following the automobile of speeding is manipulated.
As preferably, the method step that described automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection comprises:
The wheel bearing tuple of the wheel shaft that the tire pressure to 4 tires and each tire are corresponding is according to doing error correction;
Utilize the wheel bearing tuple of the wheel shaft that the tire pressure of revised 4 tires and each tire are corresponding according to the situation of blowing out is analyzed to judgement.
Further, in the time utilizing revised data to judge the situation of blowing out analysis,
According to tire pressure and wheel shaft load-bearing, the wheel ground area of tire is calculated;
Calculate wheel internal volume according to wheel ground area;
According to wheel internal volume, non-loaded tire pressure is calculated;
Judge according to non-loaded tire pressure the situation of blowing out.
Further, in the time that the situation of blowing out is judged, in the time that tire pressure reduces lower than non-loaded tire pressure at short notice, judge tyre burst.
As preferably, described behavior control device comprises brake, clutch, signal lamp and brake.
To sum up, the invention has the beneficial effects as follows:
1, tire pressure and the wheel shaft load-bearing of the present invention to tire gathers, and utilizes the relation of tire pressure and wheel shaft load-bearing and non-loaded tire pressure to calculate non-loaded tire pressure, and the detection of non-loaded tire pressure is realized to the judgement to the situation of blowing out, and its method is simple.
2, the present invention directly utilizes the relation of tire pressure and wheel shaft load-bearing and non-loaded tire pressure to calculate non-loaded tire pressure, utilizes the changing condition of non-loaded tire pressure to judge the situation of blowing out, and its accuracy rate is high.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
A kind of with speeding automobile flat tire state testing method, comprising:
The data acquisition unit respectively wheel shaft load-bearing of the tire pressure to 4 tires and wheel shaft corresponding to each tire carries out data acquisition;
Automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection and the behavior control device of following the automobile of speeding is manipulated.
Wheel shaft load-bearing is wheel load.Data acquisition unit gathers wheel load and tire pressure data, wheel load, tire pressure and the situation of blowing out have certain relation, directly wheel load and tire pressure data are gathered, recycle it and carry out discriminatory analysis to blowing out with the relation of situation of blowing out, its method letter answer and accuracy rate high.In the time judging that blowing out appears in vehicle, directly in time behavior control device is controlled, to taking measures with the automobile of speeding, reduce traffic accident in time.
Embodiment 2:
The present embodiment and above-described embodiment are basic identical, only on the basis of above-described embodiment, have done refinement, and the method step that described automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection comprises:
The wheel bearing tuple of the wheel shaft that the tire pressure to 4 tires and each tire are corresponding is according to doing error correction;
Utilize the wheel bearing tuple of the wheel shaft that the tire pressure of revised 4 tires and each tire are corresponding according to the situation of blowing out is analyzed to judgement.
When wheel load and tire pressure are gathered, due to precision problem or the other reasons of data acquisition unit, there is certain error with actual value, before the situation of blowing out is judged, first the sampled value of wheel load and tire pressure is carried out to error correction, make its more realistic value, strengthen the accuracy to the situation judgement of blowing out.
Embodiment 3:
The present embodiment and above-described embodiment are basic identical, only on the basis of above-described embodiment, have done refinement, in the time utilizing revised data to judge the situation of blowing out analysis,
According to tire pressure and wheel shaft load-bearing, the wheel ground area of tire is calculated;
Calculate wheel internal volume according to wheel ground area;
According to wheel internal volume, non-loaded tire pressure is calculated;
Judge according to non-loaded tire pressure the situation of blowing out.
In the time that the situation of blowing out is judged, in the time that tire pressure reduces lower than non-loaded tire pressure at short notice, judge tyre burst.In the described short time, between 0.2 second to 0.5 second.
Non-loaded tire pressure can calculate according to wheel load and tire pressure, when tire pressure reduces suddenly, lower than non-loaded tire pressure, to judge tyre explosion.
Embodiment 4:
The present embodiment and above-described embodiment are basic identical, only on the basis of above-described embodiment, have done refinement, and described behavior control device comprises brake, clutch, signal lamp and gear.With speeding automobile while occurring blowing out, blow out with the automobile of the speeding processing such as can take to slow down, change, i.e. the control of automatic Pilot control analysis system is processed brake, bearing circle and signal lamp; In the time that the vehicle of blowing out slows down, for the continuation that realizes front vehicle is with speeding, front vehicle can be taked to change, and brake, bearing circle and signal lamp is controlled; In the time that the vehicle of blowing out changes, front vehicle still can keep same track to travel.
As mentioned above, can realize preferably the present invention.
Claims (5)
1. with speeding an automobile flat tire state testing method, it is characterized in that comprising:
The data acquisition unit respectively wheel shaft load-bearing of the tire pressure to 4 tires and wheel shaft corresponding to each tire carries out data acquisition;
Automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection and the behavior control device of following the automobile of speeding is manipulated.
2. one according to claim 1, with speeding automobile flat tire state testing method, is characterized in that: the method step that described automatic Pilot control analysis system is analyzed the situation of blowing out according to the data of data acquisition unit collection comprises:
The wheel bearing tuple of the wheel shaft that the tire pressure to 4 tires and each tire are corresponding is according to doing error correction;
Utilize the wheel bearing tuple of the wheel shaft that the tire pressure of revised 4 tires and each tire are corresponding according to the situation of blowing out is analyzed to judgement.
3. one according to claim 2, with speeding automobile flat tire state testing method, is characterized in that: in the time utilizing revised data to judge the situation of blowing out analysis,
According to tire pressure and wheel shaft load-bearing, the wheel ground area of tire is calculated;
Calculate wheel internal volume according to wheel ground area;
According to wheel internal volume, non-loaded tire pressure is calculated;
Judge according to non-loaded tire pressure the situation of blowing out.
4. one according to claim 3, with speeding automobile flat tire state testing method, is characterized in that: in the time that the situation of blowing out is judged, in the time that tire pressure reduces lower than non-loaded tire pressure at short notice, judge tyre burst.
5. one according to claim 1, with speeding automobile flat tire state testing method, is characterized in that: described behavior control device comprises brake, clutch, signal lamp and brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470163.6A CN104191914A (en) | 2014-09-16 | 2014-09-16 | Tyre burst state detecting method for following car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470163.6A CN104191914A (en) | 2014-09-16 | 2014-09-16 | Tyre burst state detecting method for following car |
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| CN104191914A true CN104191914A (en) | 2014-12-10 |
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| CN201410470163.6A Pending CN104191914A (en) | 2014-09-16 | 2014-09-16 | Tyre burst state detecting method for following car |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1325821A1 (en) * | 2000-10-13 | 2003-07-09 | Toyota Jidosha Kabushiki Kaisha | Tire burst prediction device |
| CN101101702A (en) * | 2007-07-16 | 2008-01-09 | 陈拙夫 | Automatic driving system for automobile information sharing between automobile and its control method |
| FR2909038A1 (en) * | 2006-11-23 | 2008-05-30 | Renault Sas | Motor vehicle's tire pressure monitoring method, involves measuring magnitude value of effort of wheel by sensor, and delivering informational message, when magnitude value of effort is different from registered value of another wheel |
| CN101380876A (en) * | 2008-09-04 | 2009-03-11 | 清华大学 | Vehicle tyre-bursting security control method and system |
| CN202641271U (en) * | 2012-07-10 | 2013-01-02 | 江苏科技大学 | Detecting emergency device for flat tires of automobile |
| CN103287336A (en) * | 2013-06-24 | 2013-09-11 | 成都衔石科技有限公司 | Vehicle self-condition monitoring device |
-
2014
- 2014-09-16 CN CN201410470163.6A patent/CN104191914A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1325821A1 (en) * | 2000-10-13 | 2003-07-09 | Toyota Jidosha Kabushiki Kaisha | Tire burst prediction device |
| FR2909038A1 (en) * | 2006-11-23 | 2008-05-30 | Renault Sas | Motor vehicle's tire pressure monitoring method, involves measuring magnitude value of effort of wheel by sensor, and delivering informational message, when magnitude value of effort is different from registered value of another wheel |
| CN101101702A (en) * | 2007-07-16 | 2008-01-09 | 陈拙夫 | Automatic driving system for automobile information sharing between automobile and its control method |
| CN101380876A (en) * | 2008-09-04 | 2009-03-11 | 清华大学 | Vehicle tyre-bursting security control method and system |
| CN202641271U (en) * | 2012-07-10 | 2013-01-02 | 江苏科技大学 | Detecting emergency device for flat tires of automobile |
| CN103287336A (en) * | 2013-06-24 | 2013-09-11 | 成都衔石科技有限公司 | Vehicle self-condition monitoring device |
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Application publication date: 20141210 |
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