CN101734115A - Alarm management method of vehicle tyre pressure monitoring system - Google Patents
Alarm management method of vehicle tyre pressure monitoring system Download PDFInfo
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- CN101734115A CN101734115A CN200810044003A CN200810044003A CN101734115A CN 101734115 A CN101734115 A CN 101734115A CN 200810044003 A CN200810044003 A CN 200810044003A CN 200810044003 A CN200810044003 A CN 200810044003A CN 101734115 A CN101734115 A CN 101734115A
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Abstract
The invention discloses an alarm management method of a vehicle tyre pressure monitoring system, which comprises the following steps of: measuring the pressure, the temperature and the acceleration of a tyre at fixed time through a tyre pressure sensor, comparing the pressure, the temperature and the acceleration with preset standard values and then judging whether conditions of low pressure, high pressure, rapid air leakage and high temperature exist; if judging that a condition needing to give an alarm exists, writing alarm information on a corresponding data mark bit, sending out the alarm information in a radio frequency mode within setup time and simultaneously counting the emitting times of the alarm information; and after the counted emitting times of the alarm information reach a preset numerical value, stopping emitting the same alarm information and recovering normal timed monitoring and timed information emitting states. The method of the invention can effectively reduce the mutual interference among signals, decrease the electric power consumption of a battery and prolong the service life of the tyre pressure sensor.
Description
Technical field
The present invention relates to a kind of alarm management method of vehicle tyre pressure monitoring system.
Background technology
Air pressure of automobile tire monitoring system (TPMS) is installed in the parameters such as air pressure that can monitor tire on the vehicle in real time, and shows and report to the police with visual signal (also can comprise audible signal).Tire flat is caused low tire pressure, and Yin Gaowen, high tire pressure and easily produce the situation of blowing out and carry out early warning.Running safety can be improved, and energy consumption can be reduced because of not enough tire accelerated wear test that causes of air pressure and reduction vehicle.
The TPMS system mainly contains two types at present, a kind of TPMS system (indirect type TPMS) that is based on wheel velocity, this system comes rotating speed difference between each tire of comparison by the wheel speed of automobile ABS system (anti-skid brake system), reaches the purpose that monitors tire pressure.The major defect of this type systematic is can't occur the situation that low tire pressure and speed surpasses 100 kilometers/hour simultaneously to plural tire to judge, and precision is lower.Another kind is based on the TPMS (direct-type TPMS) of pressure sensor, and the utilization of this system is installed in the air pressure that each tyre pressure sensor of taking turns tyre cavity is directly measured tire, and the air pressure of each tire is shown and monitors; When tire pressure is crossed low or gas leakage is arranged, system's auto alarm.Direct-type TPMS is mainly by the tyre pressure sensor (comprising that pressure, temperature, acceleration pick-up and signal processing unit, RF projector, MCU etc. form) that is installed in the motor tire, and the receiver module that is installed in the automobile is formed with the display module that is installed on chaufeur instrument desk or the instrument carrier panel.Direct-type TPMS is divided into passive TPMS and active TPMS.The tyre pressure sensor of active TPMS uses powered battery, and battery has service life.Tyre pressure sensor is when transmitting, and consumption of current is tens times when not transmitting.Simultaneously, each tire of automobile if there is the tyre pressure sensor more than two or two transmitting in the same time, easily causes the mutual interference of signal when transmitting, make dropout.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of alarm management method of air pressure of automobile tire monitoring system, can effectively reduce mutual interference among signals, reduces battery power consumption, improves the service life of tyre pressure sensor.
For solving the problems of the technologies described above, the alarm method of air pressure of automobile tire monitoring system of the present invention is to adopt following technical scheme to realize, tyre pressure sensor is regularly measured air pressure, temperature and the acceleration/accel of tire, and compare with default standard value, and then judge whether to exist low pressure, high pressure, gas leakage and high-temperature condition fast, wherein: if judge the situation that existence need be reported to the police, then need write on the corresponding data zone bit by alarm message, and in the time of setting, this alarm message is sent with RF-wise, add up the number of times of this alarm message emission simultaneously; After the alarm message emitting times of statistics reaches default value, stop to launch identical alarm message, recover normal periodic monitor and regularly launch information state.
Adopt method of the present invention,, can effectively reduce the emitting times of tyre pressure sensor alarm message because the emitting times of alarm message is controlled; Launch accurately, rapidly under the prerequisite of alarm message in assurance like this, can significantly reduce the battery power consumption of tyre pressure sensor, reduce the mutual interference of information of tyre pressure sensor emission, prolong the service life of tyre pressure sensor.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is an alarm management method control flow chart of the present invention;
Fig. 2 is the lasting alarming and managing diagram of circuit of band EEPROM;
Fig. 3 is the lasting alarming and managing diagram of circuit of no EEPROM.
The specific embodiment
As shown in Figure 1, be installed on air pressure, temperature and the acceleration/accel of tyre pressure sensor timing (short period at interval) the measurement tire in the wheel tyre in the method for the invention, and, judge whether to exist low pressure, high pressure, gas leakage and hi-heat situation fast by comparing with default standard value.Under the situation that does not exist needs to report to the police, tyre pressure sensor is the pressure and temperature information of (long period at interval) emission tire regularly, and receiver module shows by display module after receiving the information of sensor emission.If judge the situation that existence need be reported to the police first, then need write on the corresponding data zone bit by alarm message, and in the time of setting (some seconds), this alarm message is sent with RF-wise, add up this alarm message number of times of emission continuously simultaneously.The tire pressure that measures when continuous several times and the informational needs of temperature are reported to the police, and launch by the transmitter module in the tyre pressure sensor, after the continuous emitting times of alarm message of statistics reaches default value, stop to launch identical alarm message, recover the current tire pressure of normal regularly (long period at interval) emission and the function of temperature information.Detected state in follow-up timing detects for still needing to report to the police, what then regularly launch is alarm message, do not need to report to the police as detected state, the normal pressure and temperature information of emission state then, and a continuous emitting times of alarm message of statistics makes zero, after receiver module receives the normal information of state, eliminate alarm condition.
Receiver module receives the radiofrequency signal that tyre pressure sensor is launched first by antenna, reads data, picks out to have alarm message on corresponding marker bit, then controls the display module display alarm information, reports to the police to chaufeur.Under the situation of not power down, the information that receiver module is reported to the police to chaufeur will exist always, and until the normal signal of state of receiving that tyre pressure sensor is sent, receiver module control display module is eliminated alarm message.
In the process of statistics alarm message emitting times, if the centre monitors the normal signal of state, then the alarm message emitting times of this statistics makes zero, and the normal signal of emission state.
For preventing that receiver module is under alarm condition, owing to automobile flameout causes power down, restarting energising back alarm message at automobile loses, can adopt two kinds of methods to control, be respectively the method for using EEPROM (EEPROM) and not using EEPROM (EEPROM).
First method is, receiver module is when receiving alarm message, this this alarm message is stored in EEPROM (EEPROM), receiver module outage under alarm condition, the information that is stored among the EEPROM can not lost, and after the energising, receiver module carries out self check again, be stored in the alarm message of EEPROM before in self check, detecting, then proceed to report to the police.After receiving the normal signal of state that tyre pressure sensor is sent, to eliminate alarm condition, and delete the alarm message of having stored, idiographic flow is seen Fig. 2.
Second method is, there is alarm message in tyre pressure sensor, but the number of times that identical alarm message is launched in the time of setting continuously reaches preset times, and alarm message is emitted as regularly under the prerequisite of (long period at interval) emission, after the receiver module outage, alarm message can't be stored; After automobile relaunches energising, receiver module self check alarm free information, so display module is not reported to the police.Tyre pressure sensor is monitoring under the prerequisite that has alarm message, reach a certain preset value (smaller value when detecting automobile speed, so that automobile is reported to the police after restarting as early as possible), tyre pressure sensor sends this alarm message in the time of setting (some seconds) again with the RF-wise consecutive intervals.Receiver module is received alerting signal, begins to report to the police, and has kept the continuity of reporting to the police, and idiographic flow is seen Fig. 3.But receiver module is energized in this short time than slow train speed (default running car low velocity) that receives alerting signal from relaunching, and does not report to the police in the method.
The alarm management method of air pressure of automobile tire monitoring system of the present invention, can prolong the service life of tyre pressure sensor, effectively reduce mutual interference among signals, reduced the rate of false alarm of system, improve running safety, minimizing has bigger economy because of the air pressure deficiency causes the increase of tire accelerated wear test and energy consumption of vehicles.
Claims (4)
1. the alarm management method of a vehicle tyre pressure monitoring system, tyre pressure sensor is regularly measured air pressure, temperature and the acceleration/accel of tire, and compare with default standard value, and then judge whether to exist low pressure, high pressure, gas leakage and high-temperature condition fast, it is characterized in that: if judge the situation that existence need be reported to the police, then need write on the corresponding data zone bit by alarm message, and in the time of setting, this alarm message is sent with RF-wise, add up the number of times of this alarm message emission simultaneously; After the alarm message emitting times of statistics reaches default value, stop to launch identical alarm message, recover normal periodic monitor and regularly launch information state.
2. the alarm management method of vehicle tyre pressure monitoring system according to claim 1, it is characterized in that: receiver module is reported to the police behind the alarm message that receives tyre pressure sensor first, removes after receiver module receives the normal information of state that tyre pressure sensor transmits and reports to the police.
3. the alarm management method of vehicle tyre pressure monitoring system according to claim 1 and 2, it is characterized in that: receiver module is when receiving alarm message, store this alarm message, after receiver module cuts off the power supply under alarm condition, receiver module carries out self check when switching on again, the alarm message of storage before detecting in self check is then proceeded to report to the police; After receiving the normal signal of state that tyre pressure sensor is sent, eliminate alarm condition, and delete the alarm message of having stored.
4. the alarm management method of vehicle tyre pressure monitoring system according to claim 1 and 2, it is characterized in that: receiver module cuts off the power supply under alarm condition, again after the energising, when Electrically Erasable Read Only Memory was arranged, receiver module was reported to the police by self check; During no Electrically Erasable Read Only Memory, transmission once more by the tyre pressure sensor alarm message under the lower-speed state, receiver module is reported to the police after receiving alarm message again, receives alerting signal during this period of time before from being energized to again, does not report to the police.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810044003XA CN101734115B (en) | 2008-11-25 | 2008-11-25 | Alarm management method of vehicle tyre pressure monitoring system |
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| CN200810044003XA CN101734115B (en) | 2008-11-25 | 2008-11-25 | Alarm management method of vehicle tyre pressure monitoring system |
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| CN101734115A true CN101734115A (en) | 2010-06-16 |
| CN101734115B CN101734115B (en) | 2011-07-20 |
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| CN200810044003XA Expired - Fee Related CN101734115B (en) | 2008-11-25 | 2008-11-25 | Alarm management method of vehicle tyre pressure monitoring system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832226A (en) * | 2014-03-17 | 2014-06-04 | 深圳市道通科技有限公司 | Method and device for identifying abnormity of tire pressure detection devices |
| CN107251443A (en) * | 2015-03-13 | 2017-10-13 | 株式会社自动网络技术研究所 | Communications system for vehicle and vehicular communication unit |
| CN107539041A (en) * | 2016-06-29 | 2018-01-05 | 长城汽车股份有限公司 | The data transmission method and system of tyre pressure sensor |
| WO2018232608A1 (en) * | 2017-06-20 | 2018-12-27 | 万通智控科技股份有限公司 | Tire management system |
| CN109203870A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The Information abnormity processing method and system of tire networking |
| CN110281712A (en) * | 2019-06-24 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of tire pressure data-updating method, device and medium |
| CN112693265A (en) * | 2020-12-11 | 2021-04-23 | 江门市大长江集团有限公司 | Electronic instrument alarm device, method, electronic equipment and storage medium |
| CN113165457A (en) * | 2018-12-13 | 2021-07-23 | 法国大陆汽车公司 | Method for detecting the risk of blowout of a tyre |
| CN114454672A (en) * | 2022-04-14 | 2022-05-10 | 深圳市其利天下技术开发有限公司 | Intelligent management system for tire pressure of vehicle tire |
| CN115384239A (en) * | 2022-09-05 | 2022-11-25 | 东风柳州汽车有限公司 | Method and system for detecting quick air leakage of tire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7075421B1 (en) * | 2002-07-19 | 2006-07-11 | Tuttle John R | Tire temperature and pressure monitoring sensors and systems |
| CN1586932A (en) * | 2004-08-31 | 2005-03-02 | 武汉虹信通信技术有限责任公司 | Tyre pressure real time monitor system |
| CN100487736C (en) * | 2005-04-05 | 2009-05-13 | 上海飞恩微电子有限公司 | Radio vehicle tyre safety monitoring sound alarm system |
| CN100466004C (en) * | 2006-04-03 | 2009-03-04 | 环隆电气股份有限公司 | Radio transmission tire detecting signal method |
| CN101301846B (en) * | 2008-02-22 | 2011-06-22 | 哈尔滨工业大学 | Automotive tire pressure monitoring system calibration instrument and calibration method |
-
2008
- 2008-11-25 CN CN200810044003XA patent/CN101734115B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832226B (en) * | 2014-03-17 | 2016-05-04 | 深圳市道通科技股份有限公司 | Abnormal method and the device of identification tire pressure checkout equipment |
| CN103832226A (en) * | 2014-03-17 | 2014-06-04 | 深圳市道通科技有限公司 | Method and device for identifying abnormity of tire pressure detection devices |
| CN107251443B (en) * | 2015-03-13 | 2019-06-18 | 株式会社自动网络技术研究所 | Communications system for vehicle and vehicular communication unit |
| CN107251443A (en) * | 2015-03-13 | 2017-10-13 | 株式会社自动网络技术研究所 | Communications system for vehicle and vehicular communication unit |
| CN107539041A (en) * | 2016-06-29 | 2018-01-05 | 长城汽车股份有限公司 | The data transmission method and system of tyre pressure sensor |
| CN107539041B (en) * | 2016-06-29 | 2020-01-31 | 长城汽车股份有限公司 | Data transmission method and system of tire pressure sensor |
| WO2018232608A1 (en) * | 2017-06-20 | 2018-12-27 | 万通智控科技股份有限公司 | Tire management system |
| CN109203870A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The Information abnormity processing method and system of tire networking |
| CN109203870B (en) * | 2017-07-07 | 2020-08-04 | 杭州中策车空间汽车服务有限公司 | Information exception handling method and system for tire networking |
| CN113165457A (en) * | 2018-12-13 | 2021-07-23 | 法国大陆汽车公司 | Method for detecting the risk of blowout of a tyre |
| CN110281712A (en) * | 2019-06-24 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of tire pressure data-updating method, device and medium |
| CN112693265A (en) * | 2020-12-11 | 2021-04-23 | 江门市大长江集团有限公司 | Electronic instrument alarm device, method, electronic equipment and storage medium |
| CN114454672A (en) * | 2022-04-14 | 2022-05-10 | 深圳市其利天下技术开发有限公司 | Intelligent management system for tire pressure of vehicle tire |
| CN115384239A (en) * | 2022-09-05 | 2022-11-25 | 东风柳州汽车有限公司 | Method and system for detecting quick air leakage of tire |
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| CN101734115B (en) | 2011-07-20 |
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