CN201208887Y - Automotive tire pressure monitoring device - Google Patents
Automotive tire pressure monitoring device Download PDFInfo
- Publication number
- CN201208887Y CN201208887Y CNU2008200870705U CN200820087070U CN201208887Y CN 201208887 Y CN201208887 Y CN 201208887Y CN U2008200870705 U CNU2008200870705 U CN U2008200870705U CN 200820087070 U CN200820087070 U CN 200820087070U CN 201208887 Y CN201208887 Y CN 201208887Y
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- Prior art keywords
- tire
- radio frequency
- tyre
- signal processor
- tire pressure
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Abstract
The utility model discloses a monitoring device, more particularly relates to pressure monitoring equipment used for an automobile tyre. The utility model is characterized in that the pressure monitoring equipment comprises a sensor, signal processors, a sending antenna, a radio frequency emitter, a radio frequency receiver and a display, wherein the senor in a tyre is connected with the signal processor in the tyre; the signal processor in the tyre is connected with the radio frequency emitter; the radio frequency emitter is connected with the radio frequency receiver through a one-way radio asynchronous communication mode; the radio frequency receiver is connected with the signal processor outside the tyre; and the signal processor outside the tyre is then connected with the display. The utility model has the advantages that hidden trouble existing in the automobile tyre can be discovered in time, the occurrence of traffic accidents such as tyre burst and the like can be avoided, the service life of the automobile tyre can be prolonged, and the like. The utility model can be widely applied to various motor vehicles.
Description
Technical field
The utility model relates to the monitoring field, specifically is meant the pressure monitoring devices of motor tire.
Technical background
Along with the continuous development of auto-industry, frequent accidents takes place, and traffic safety problem is serious day by day, has brought great threat for human life and property.This not only requires people to improve the safety meaning of self, more will propose higher requirement to the performance safety of running car.Safety measures such as existing anti-lock braking system in automobiles (Anti-lock Break System abridge ABS), electronics driving stability system, safety air bag all belong to " passive afterwards " type security, promptly just play the effect of protection personal safety after accident takes place.Consideration now more is " in advance initiatively " type security, and promptly automobile can give a warning to chaufeur before fault or accident generation, avoids the generation of accident, as the avoidance system of automobile.
In the galloping process, tire fault is that all drivers worry and the most difficult prevention the most, also is the major reason that sudden traffic accident takes place.Wherein tyre explosion becomes the primary factor of traffic accident generation owing to its unpredictability and uncontrollability.According to statistics, the traffic accident that takes place on Chinese express highway has 70% to be caused by tyre explosion, and then up to 80%, the tire fault in U.S. every year 75% is owing to tire seepage or underinflation causing in this ratio of the U.S..Analyze according to the relevant expert, the tire pressure that maintains the standard travels and finds that in time tire flat is to prevent the key of blowing out.In vehicle traveling process, initiatively monitor the air pressure and the temperature of tire in real time, remind chaufeur to carry out preventive, prevent that tyre explosion from having become an important subject of vehicle safety travel.
Automotive tire pressure supervisory system (Tire Pressure Monitoring System abridge TPMS), be mainly used in when running car and in real time tire pressure monitored automatically, to tire flat and infrabar and air pressure is too high reports to the police, with guarantee driving safety, be that motorist, rider's life security ensures forewarn system.TPMS belongs to " active in advance " security, promptly occurs in time reporting to the police when unusual at tire, takes measures, and accident is eliminated in rudiment.Since 2000, what this notion was frequent appears in the various newspapers and periodicals, becomes the focus of attention of automotive field.
Carry out the research of system for monitoring pressure in tyre abroad and compare early, just propose as far back as the eighties in last century, but owing to lacked the market environment of otherwise effective technique condition and maturation at that time, and only rest on the imagination aspect.
Toyota in 1996 just has on the MarkII type car that a kind of TPMS product is applied to produce at that time.But this system is measure tire pressure directly, and has the factor that is easy to generate error, and also there is deficiency in the ageing and accuracy of data.
2000, logical (Firestone) tire incident of U.S.'s this mortal world makes TPMS develop into trend, the quality problems of the logical tire of this mortal world, the injures and deaths that surpass thousand people have been caused, this thing has caused showing great attention to of industry and United States Government, United States Government requires automaker's accelerated development TPMS system, in the hope of reducing the generation of tire accident.And by federal bill transport, require the new car after in November, 2003 all will be progressively tire pressure monitoring system as standard configuration, after 1 day September in 2007, all vehicles all must be observed and be carried out.After the U.S., corresponding regulations has also been formulated in Europe, requires its domestic automobile vendor that TPMS is installed, and the system for monitoring pressure in tyre technology becomes the focus of research.
2002, the tire pressure real-time monitoring system of Johnson Company comprised the room mirror of a particular design, four tyre pressure sensors and emission, reception facilities.The tire pressure data are to send integrated receiver in the windscreen to by being integrated in emitter in the tire valve valve during system works, utilize radio-frequency technique to show then on back mirror.This system can show the pressure data of each tire that advantages of high practicability and feasibility are arranged in real time when work.
In addition, tire sentry (Tire Guard) monitoring device of Siemens VDO Automobile Parts Company independent development, tire patron saint (Tire Shield) monitoring device of Britain A.I.R. Automobile Parts Company production and selling; France group company of Michelin and Wei Bai can the cooperative development of (Wabco) company a kind of inflation of tire inspection of inner pressure device, be the monitoring device of specializing in the commercial vehicle/comm..vehicle use; Germany BEAU company and U.S. Lear company unites the tire pressure real-time monitoring system of release, with electronic door lock device and the system integration together, is a kind of total solution that has price competitiveness of recent release.
Group company of Michelin, Goodyear Tire and Rubber Co. are imbedded pressure, temperature monitoring and sender unit in the tire tyre sidewall, and these devices play a role at the whole life period (being generally 1 year～7 years) of tire.
This project is utilized modern sensor technology, Eltec and microcontroller technology, and the system for monitoring pressure in tyre of development and exploitation undoubtedly will be the ideal tools that guarantees vehicle safety travel.
The utility model content
The utility model is at deficiency of the prior art, proposed a kind of easy to operate, device for monitoring in real time.
The utility model is achieved by following technical proposals:
Automobile tire pressure monitor, it comprises: sensor, signal processor, emitting antenna, radiofrequency launcher, radio frequency receiver, telltale, it is characterized in that: place the sensor in the tire, sensor is connected with signal processor in the tire, and signal processor is connected with radiofrequency launcher in the tire; Radiofrequency launcher is connected by the uni-directional wireless asynchronous communication means with radio frequency receiver, and radio frequency receiver is connected with tire external signal treater, and signal processor is connected with telltale again.
As preferably, described sensor comprises temperature sensor, pressure sensor, acceleration pick-up, timer.As preferably, described radiofrequency launcher is the superhigh frequency projector.When described radiofrequency launcher is when carrying out the signal transmission with the frequency band transmission mode that baseband signal is modulated carrier wave, to have better effect.
As preferably, described emitting antenna is a helical antenna.
As preferably, described radio frequency receiver is the superhet radio frequency receiver.
As preferably, described telltale is the telltale of band annunciator, can discovery more directly perceived, monitor the pressure condition of tire etc.
The utility model adopts the direct-type system for monitoring pressure in tyre, at the four-wheel tire, each inside tires is all installed an emission coefficient, tire inner sensor collecting temperature, pressure signal are gone out by the radiofrequency launcher modulate emission after micro controller system is handled, the main frame receiving system that is installed in the operator platform receives and this radiofrequency signal of demodulation, when showing and also opening annunciator when unusual appears in the pressure and temperature of tire, remind the driver to take measures necessary.
Emission coefficient requires the 3-5 that can work under the inferior battery of a joint lithium, so the economize on electricity of system is an important problems, have only the most of the time to allow system be in dormant state, could prolong battery service life.This paper adopts the mode of acceleration pick-up, vehicle ' is monitored, the mode of operation of control emission coefficient, when stop and automobile driving speed slowly the time system enter low power consumpting state, system enters mode of operation when reaching certain speed, because it is slower that motor tire pressure inside and temperature data change, and can carry out the monitoring of data every certain hour.
After receiving system receives signal, amplify demodulation, give the microprocessor serial interface digital signal by demodulator circuit.Decode by microprocessor then, from data flow, extract position code, temperature value, force value and the CRC check sign indicating number etc. of tire, do corresponding processing, as carry out verification, upgrade the current data value, carry out sound and light alarm etc.
Man machine interface partly comprises telltale, annunciator and button etc.Telltale shows current pressure, temperature value.Button then can carry out the function setting and the pressure, the temperature value that read when front tyre of system.Annunciator sends different alerting signals according to concrete abnormal condition.Automobile in the process of moving because each tire is different with the ground-surface contact position, the load difference, each Tyte Wear position degree has difference clearly.Even in order to guarantee each wear on tyres, increase the service life, often carry out the transposition of tire.When the transmission data, necessary determination data is from which tire, and this system also must have the transposition recognition function.
The utility model adopts the interchanging of tires RM of manually setting: behind interchanging of tires, we write down the particular location before and after the transposition, comprise front, rear, left and right, then by the identity code of the cooresponding emission coefficient of each tire location of button input transposition back, like this emission coefficient with regard to and the actual position of tire connected.
The beneficial effects of the utility model: can in time find the hidden danger that motor tire exists, avoid the generation of traffic accidents such as blowing out, and can prolong the service life of motor tire, have more advantages such as economy.
Description of drawings
The module map of Fig. 1 automobile tire pressure monitor
The specific embodiment
Below in conjunction with accompanying drawing utility model is specified:
Embodiment one
In each tire of automobile, corresponding apparatus is installed, as Fig. 1, tire inner sensor 101 is installed in the near front wheel of automobile, signal processor 201 in the tire, radiofrequency launcher 301, tire inner sensor 101 is connected with signal processor 201 in the tire, and signal processor 201 is connected with radiofrequency launcher 301 again in the tire; At operator's compartment radio frequency receiver 401 is installed again, tire external signal treater 501, telltale 601 and warning device, wherein radio frequency receiver 401 is connected with tire external signal treater 501, and tire external signal treater 501 is connected with warning device with telltale 601.The equipment unit annexation of other tire is identical with the annexation of the near front wheel.Off front wheel is: tire inner sensor 102 is connected with signal processor 202 in the tire, and signal processor 202 is connected with radiofrequency launcher 302 again in the tire; Left rear wheel is: tire inner sensor 103 is connected with signal processor 203 in the tire, and signal processor 203 is connected with radiofrequency launcher 303 again in the tire; Off hind wheel is: tire inner sensor 104 is connected with signal processor 204 in the tire, and signal processor 204 is connected with radiofrequency launcher 304 again in the tire.
When the near front wheel tire pressure occurs and reduces, tire inner sensor 101 can be transferred to signal processor 201 in the tire to the tire pressure signal that monitors, and be converted into digital signal, be transmitted to radio frequency receiver 401 by radiofrequency launcher 301, radio frequency receiver 401 is transferred to tire external signal treater 501 to the signal of receiving, and directly reflects by telltale 601, when telltale 601 shows that numerical value is set the numerical value volume above the car owner, annunciator pipes, and gives the alarm.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above examples of implementation, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (7)
1, automobile tire pressure monitor, it comprises: sensor, signal processor, emitting antenna, radiofrequency launcher, radio frequency receiver, telltale, it is characterized in that: place the sensor in the tire to be connected with signal processor in the tire, signal processor is connected with radiofrequency launcher in the tire; Radiofrequency launcher is connected by the uni-directional wireless asynchronous communication means with radio frequency receiver, and radio frequency receiver is connected with tire external signal treater, and signal processor is connected with telltale again.
2, automobile tire pressure monitor according to claim 1 is characterized in that described sensor comprises temperature sensor, pressure sensor, acceleration pick-up, timer.
3, automobile tire pressure monitor according to claim 1 is characterized in that described radiofrequency launcher is the superhigh frequency projector.
4, automobile tire pressure monitor according to claim 3 is characterized in that described radiofrequency launcher is to carry out the signal transmission with the frequency band transmission mode that baseband signal is modulated carrier wave.
5, automobile tire pressure monitor according to claim 1 is characterized in that described emitting antenna is a helical antenna.
6, automobile tire pressure monitor according to claim 1 is characterized in that described radio frequency receiver is the superhet radio frequency receiver.
7, automobile tire pressure monitor according to claim 1 is characterized in that described telltale is the telltale of band annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200870705U CN201208887Y (en) | 2008-05-15 | 2008-05-15 | Automotive tire pressure monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200870705U CN201208887Y (en) | 2008-05-15 | 2008-05-15 | Automotive tire pressure monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN201208887Y true CN201208887Y (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200870705U Expired - Fee Related CN201208887Y (en) | 2008-05-15 | 2008-05-15 | Automotive tire pressure monitoring device |
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| CN (1) | CN201208887Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035914A (en) * | 2016-12-05 | 2019-07-19 | 米其林集团总公司 | Radio-frequency communication module for tire |
-
2008
- 2008-05-15 CN CNU2008200870705U patent/CN201208887Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110035914A (en) * | 2016-12-05 | 2019-07-19 | 米其林集团总公司 | Radio-frequency communication module for tire |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20110515 |