CN101284485A - Automotive tire pressure monitoring system - Google Patents
Automotive tire pressure monitoring system Download PDFInfo
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- CN101284485A CN101284485A CNA2008100250321A CN200810025032A CN101284485A CN 101284485 A CN101284485 A CN 101284485A CN A2008100250321 A CNA2008100250321 A CN A2008100250321A CN 200810025032 A CN200810025032 A CN 200810025032A CN 101284485 A CN101284485 A CN 101284485A
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- 238000012360 testing method Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 206010039203 Road traffic accident Diseases 0.000 description 2
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Abstract
The invention discloses an automobile tire pressure monitoring system, which comprises a tire pressure sensor, a TPMS receiver and a PMS emitter. The system is characterized in that: the TPMS receiver is arranged in the vehicle body controller; the pressure and the temperature data detected by the tire pressure sensor are sent to instruments through the vehicle body controller and a CAN bus. Compared with the prior art, the TPMS receiver is arranged in the vehicle body controller; the integrated IPMS (tire pressure monitoring system) can use the communication interface, the radio-frequency antenna and the receiving processor of the BCM in the vehicle body controller to finish the signal receiving treatment and transmit the displayed information to instruments, reducing electrical components and improving reliability; furthermore, the whole module after integration only needs one EMC and alternative temperature test, at the same time, the module weight and the development cost are reduced.
Description
Technical field
The claimed technical scheme of the present invention relates to a kind of automobile tire pressure monitoring system.
Background technology
In the galloping process, tire fault is that the driver worries and the most difficult prevention the most, also is the major reason that sudden traffic accident takes place.According to statistics, the traffic accident that takes place on Chinese express highway has 70% owing to blow out and cause, in this ratio of the U.S. then up to 80%.According to the analysis expert at national rubber tire quality surveillance center, the tyre pressure that maintains the standard travels and in time finds that tire gas leakage is to prevent the key of blowing out.Therefore present top-of-the-range version has all assembled system for monitoring pressure in tyre.
The direct-type TPMS (automobile tire pressure monitoring system) of main flow utilizes and is installed in air pressure and the temperature that each sensor of taking turns tyre cavity is directly measured tire at present, and each tire pressure and temperature monitored, when tire pressure too low (be lower than standard pressure 25%) or when seepage is arranged, system can auto alarm prompting driver.
Direct-type automobile tire pressure monitoring system TPMS adopts independently receiver module at present, total system comprises tyre pressure sensor, receiving wire assembly and receiver module, system's theory of constitution as shown in Figure 4, vehicle for last CAN bus, TPMS is as a node of CAN bus 5, and receiver module needs independent CAN transceiver and CAN controller, the TPMS cost height of such scheme, and the Test item of receptor is many, and cost is higher.
Summary of the invention
Technical matters to be solved by this invention provides a kind of automobile tire pressure monitoring system, has reduced electronic devices and components to reach, and improves the purpose of reliability.
For solving the problems of the technologies described above, technical scheme of the present invention is, a kind of automobile tire pressure monitoring system, comprise tire pressure sensor, TPMS receptor, PMS projector, it is characterized in that: described TPMS receptor is located in the car body controller, and the detected pressure of described tire pressure sensor, temperature data are sent to instrument by car body controller, CAN bus.By the wireless radiofrequency communication between the tire pressure sensor of TPMS and the receptor, four tire pressure sensors are measured tire pressure and temperature signal and are launched with the RF signal by the TPMS projector, the antenna assembly received signal also is transferred to receptor, and car body controller BCM and remote-control key be also by radio-frequency communication, and the transmitting frequency unanimity of two systems.Integrated system for monitoring pressure in tyre TPMS in BCM (car body controller), independently two system's actvies are integrated originally, the TPMS receptor can utilize hardware circuits such as the communication interface, radio-frequency antenna, radio frequency receiving processor of car body controller BCM, reduce electronic devices and components, improved the property of leaning on of vehicle tyre pressure monitoring system.
Automobile tire pressure monitoring system, received RF receiving circuit module in the described car body controller, collect the wireless signal of TPMS projector emission by the receiving wire of car body controller BCM, and data are sent to the CAN bus by the microprocessor in the car body controller, CAN controller and CAN transceiver, be transferred to instrument.
Automobile tire pressure monitoring system, described microprocessor is connected with the memory of storage TPMS emitter data.
Automobile tire pressure monitoring system, owing to adopt said structure, a kind of automobile tire pressure monitoring system, comprise tire pressure sensor, TPMS receptor, PMS projector, described TPMS receptor is located in the car body controller, and the detected pressure of described tire pressure sensor, temperature data are sent to instrument by car body controller, CAN bus.Compared with prior art, the TPMS receptor is located in the car body controller, integrated TPMS (system for monitoring pressure in tyre), can utilize communication interface, radio-frequency antenna, the receiving processor of BCM in the car body controller to wait reception processing and the transmission demonstration information of finishing signal to give instrument, reduce electronic devices and components, improved reliability.And the whole module in integrated back only need do tests such as EMC, temperature alternating, alleviates module weight simultaneously, reduces cost of development.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is an automobile tire pressure monitoring system structural representation of the present invention;
Fig. 2 is a TPMS receiver architecture block diagram shown in Figure 1;
Fig. 3 is a TPMS receptor signal transmission block diagram shown in Figure 1;
Fig. 4 is a prior art automobile tire pressure monitoring system structural representation;
In Fig. 1 ~ Fig. 4,1, tire pressure sensor; 2, TPMS receptor; 3, TPMS projector; 4, car body controller; 5, CAN bus; 6, instrument; 7, receiving wire; 8, radio-frequency (RF) receiving circuit module; 9, low noise amplification, filter; 10, rectifier; 11, CAN controller; 12, CAN transceiver.
The specific embodiment
As Fig. 1 ~ shown in Figure 3, a kind of automobile tire pressure monitoring system, comprise tire pressure sensor (1), TPMS receptor 2, TPMS projector 3, described TPMS receptor 2 is located in the car body controller 4, and described tire pressure sensor 1 detected pressure, temperature data are sent to instrument 6 by car body controller 4, CAN bus 5.Received RF receiving circuit module 8 is collected the wireless signal RF of TPMS projector 3 emissions in the car body controller 4 by the receiving wire 7 of car body controller 4, and data are sent to CAN bus 5 by the microprocessor MCU in the car body controller 4, CAN controller 11 and CAN transceiver 12, be transferred to instrument 6.
By the wireless radiofrequency communication between the tire pressure sensor 1 of TPMS and the receptor 2.Four tire pressure sensors 1 are measured tire pressure and temperature signal and are launched with wireless signal RF, and s-f is 433MHz.After TPMS projector 3 sends signal by rf carrier, receiving wire 7 by car body controller 4 is collected wireless signal, receiving wire 7 received signals also are transferred to receptor 2, amplify through the low noise in the car body controller 4 radio-frequency (RF) receiving circuit modules 8, filter 9 carries out low noise and amplifies and filtering, again by rectifier 10 with the digital demodulation signal input microprocessor MCU that comes out, microprocessor MCU in the car body controller 4 analyzes ID number of TPMS projector 3 from memory (EEPROM), pressure data and temperature data and other data messages, after TPMS receptor 2 processing signals, and data being sent to CAN bus 5 by CAN controller 11 and CAN transceiver 12, instrument 6 is obtained signal and is shown that the state of each tire is (normal from CAN bus 5, tire pressure is low, leak gas fast and 4 kinds of states of the TPMS system failure).
Because radio-frequency (RF) receiving circuit RKC (Remote Keytroller) circuit of the receptor 2 shared car body controllers 4 of TPMS, communication interface (the CAN communication of shared car body controller 4 simultaneously, the CAN transceiver of the shared BCM of TPMS and CAN controller), reduce the electronic devices and components of system for monitoring pressure in tyre, improve reliability.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (4)
1, a kind of automobile tire pressure monitoring system, comprise tire pressure sensor (1), TPMS receptor (2), TPMS projector (3), it is characterized in that: described TPMS receptor (2) is located in the car body controller (4), and the detected pressure of described tire pressure sensor (1), temperature data are sent to instrument (6) by car body controller (4), CAN bus (5).
2, automobile tire pressure monitoring system according to claim 1, it is characterized in that: the interior received RF receiving circuit module of described car body controller (4) (8) is collected the wireless signal (RF) of TPMS projector (3) emission by the receiving wire (7) of car body controller (4), and data are sent to CAN bus (5) by the microprocessor (MCU) in the car body controller (4), CAN controller (11) and CAN transceiver (12), be transferred to instrument (6).
3, automobile tire pressure monitoring system according to claim 2, it is characterized in that: described radio-frequency (RF) receiving circuit module (8) is made up of low noise amplification, filter (9) and rectifier (10), low noise is amplified, an end of filter (9) is connected with receiving wire (7), and the other end is connected with microprocessor (MCU) by rectifier (10).
4, according to claim 1 or 2 or 3 described automobile tire pressure monitoring systems, it is characterized in that: described microprocessor (MCU) is connected with the memory (EEPROM) of storage TPMS projector (3) data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100250321A CN101284485A (en) | 2008-04-24 | 2008-04-24 | Automotive tire pressure monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100250321A CN101284485A (en) | 2008-04-24 | 2008-04-24 | Automotive tire pressure monitoring system |
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| Publication Number | Publication Date |
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| CN101284485A true CN101284485A (en) | 2008-10-15 |
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| CNA2008100250321A Pending CN101284485A (en) | 2008-04-24 | 2008-04-24 | Automotive tire pressure monitoring system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401719A (en) * | 2010-09-17 | 2012-04-04 | 深圳市加力尔电子科技有限公司 | Intelligent testing system of automobile tire pressure monitoring module |
| CN102514491A (en) * | 2011-12-23 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle instrument display device |
| CN104468341A (en) * | 2014-08-27 | 2015-03-25 | 浙江中科领航汽车电子有限公司 | TPMS gateway receiving system and method |
| CN106042793A (en) * | 2016-07-26 | 2016-10-26 | 金龙联合汽车工业（苏州）有限公司 | Integrated tire pressure intelligent detection system |
| CN106827976A (en) * | 2017-01-20 | 2017-06-13 | 奇瑞汽车股份有限公司 | Automobile tyre inflation prompt system and automobile tyre inflation reminding method |
| CN108284714A (en) * | 2017-01-09 | 2018-07-17 | 亚得克测量仪器（上海）有限公司 | Method and apparatus for reprogram TPMS tire sensor data in vehicle control system |
| CN110962512A (en) * | 2019-12-24 | 2020-04-07 | 深圳供电局有限公司 | Intelligent monitoring system for automobile tire |
| CN111516437A (en) * | 2020-04-30 | 2020-08-11 | 陕西重型汽车有限公司 | Automobile tire inflation and deflation monitoring control system |
-
2008
- 2008-04-24 CN CNA2008100250321A patent/CN101284485A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401719A (en) * | 2010-09-17 | 2012-04-04 | 深圳市加力尔电子科技有限公司 | Intelligent testing system of automobile tire pressure monitoring module |
| CN102514491A (en) * | 2011-12-23 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle instrument display device |
| CN104468341A (en) * | 2014-08-27 | 2015-03-25 | 浙江中科领航汽车电子有限公司 | TPMS gateway receiving system and method |
| CN104468341B (en) * | 2014-08-27 | 2017-10-20 | 浙江中科领航汽车电子有限公司 | A kind of TPMS gateways reception system and method for reseptance |
| CN106042793A (en) * | 2016-07-26 | 2016-10-26 | 金龙联合汽车工业（苏州）有限公司 | Integrated tire pressure intelligent detection system |
| CN108284714A (en) * | 2017-01-09 | 2018-07-17 | 亚得克测量仪器（上海）有限公司 | Method and apparatus for reprogram TPMS tire sensor data in vehicle control system |
| CN106827976A (en) * | 2017-01-20 | 2017-06-13 | 奇瑞汽车股份有限公司 | Automobile tyre inflation prompt system and automobile tyre inflation reminding method |
| CN110962512A (en) * | 2019-12-24 | 2020-04-07 | 深圳供电局有限公司 | Intelligent monitoring system for automobile tire |
| CN111516437A (en) * | 2020-04-30 | 2020-08-11 | 陕西重型汽车有限公司 | Automobile tire inflation and deflation monitoring control system |
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Open date: 20081015 |