CN104553635A - Two-way communication tire pressure monitoring system - Google Patents
Two-way communication tire pressure monitoring system Download PDFInfo
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- CN104553635A CN104553635A CN201310522102.5A CN201310522102A CN104553635A CN 104553635 A CN104553635 A CN 104553635A CN 201310522102 A CN201310522102 A CN 201310522102A CN 104553635 A CN104553635 A CN 104553635A
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Abstract
The invention relates to a two-way communication tire pressure monitoring system. The two-way communication tire pressure monitoring system comprises a plurality of transmitters, a plurality of low-frequency antennas and a receiver, wherein a plurality of transmitters are fixed on an automobile rim respectively, each transmitter comprises a low-frequency receiving module for receiving a low-frequency wake-up signal; a plurality of low-frequency antennas are used for transmitting all low-frequency wake-up signals respectively; the receiver is arranged inside an automobile body and comprises one or more low-frequency driving modules which are connected with all low-frequency antennas in a wired manner for outputting all low-frequency wake-up signals to all low-frequency antennas respectively.
Description
Technical field
The present invention relates to the system for monitoring pressure in tyre of automobile.
Background technology
At system for monitoring pressure in tyre (Tire Pressure Monitoring System, TPMS) in, emitter is arranged on automobile rim, the pressure and temperature of monitoring tire, and by wireless transmission method pressure and temperature signal is sent to the receiver in automobile.
Cause electric energy expense excessive in order to avoid emitter transmits too frequently, part TPMS system disposition low-frequency trigger, in order to wake emitter up when needed, impels the latter to launch aforesaid signal.Fig. 1 illustrates the TPMS system construction drawing with low frequency wake-up function.With reference to shown in Fig. 1, TPMS system comprises 4 emitters, 11,4 low-frequency triggers 12 and 1 receiver 13.Emitter 11 can be fixed on wheel rim by tire tube valve.Low-frequency trigger 12 is fixed near four emitters 11, as wheel cover or mud guard place.Receiver 13 is fixed on interior of body.Receiver 13 can connect storage battery or ignition wire, can by CAN and other ECU(Electronic Control Unit of vehicle, electronic control unit) unit communication.Asynchronous serial communication can be carried out by LIN line etc. between receiver 13 and low-frequency trigger 12.
Receiver 13 mainly comprises micro controller system, power module, Receiver Module, CAN transceiver, LIN transceiver and watchdog circuit etc.The mode of operation of receiver 13 is: after vehicle ignition, receiver normally works, and starts to carry out System self-test, and sent by LIN line and wake frame up to low-frequency trigger 12, low-frequency trigger 12 sends corresponding low frequency signal to emitter 11.Emitter 11 sends radio-frequency signal detection data, then receiver 13 received RF data, and carries out analysis and treament to data, sends a signal to display unit by CAN.Under the state that vehicle keeps igniting, send different low frequency signals according to functional design requirements transmission Different L IN Frame to low-frequency trigger 12 and wake emitter up.
Low-frequency trigger 12 mainly comprises micro controller system, power module, low frequencies module (comprising low-frequency antenna), LIN transceiver composition.Low-frequency trigger 12 inside has ID(IDentifier, identifier) as mark.Vehicle is when assigned line study identifier, and receiver needs to realize emitter ID and low-frequency trigger ID binds.When receiving the instruction of receiver 13, low-frequency trigger 12 can drive its low frequencies module transmission low frequency signal to carry out emitter and wake up.
Emitter 11 mainly comprises micro controller system, low frequency reception module, battery, radiofrequency emitting module, pressure, temperature sensor etc., can be waken up by low frequency signal, sends RF(radio frequency) data.
When low-frequency trigger 12 sends low frequency wake-up signal, emitter 11 sends radiofrequency signal data.When low-frequency trigger 12 does not carry out waking work up, emitter 11 is emitting radio frequency signal data not.By changing the interval that low frequency signal wakes up, the frequency change that radiofrequency signal data are launched can be realized.
The major defect of above-mentioned TPMS system comprises:
(1) cost of raw material is higher: because each low-frequency trigger needs to comprise corresponding micro controller system, LIN transceiver, power module, and because the situation of installation site, requires that the working environment parameter of components and parts is high, cause components and parts price high.
(2) low-frequency trigger volume and weight is large: because the components and parts comprised are many, corresponding volume and weight can increase, and proposes high requirement for installation, and potential failure possibility increases.
(3) emitter ID and low-frequency trigger ID binds: need to produce line and learn identifier and realize binding, also need to bind, can not realize full automation to code when service provider locates operation after sale.
(4) low frequency wake-up strategy: each low frequency wake-up frame that sends wakes up, emitter just sends radiofrequency signal data, cause low frequency wake-up frequent, and because low frequency wake-up power is higher, power consumption is larger, and cause EMC(Electro Magnetic Compatibility, electromagnetic compatibility) interference also increase.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of system for monitoring pressure in tyre of two way communication, to reduce the volume and weight of low-frequency trigger.
The present invention is that to solve the problems of the technologies described above the technical scheme adopted be the system for monitoring pressure in tyre proposing a kind of two way communication, comprises multiple emitter, multiple low-frequency antenna and receiver.Multiple emitter is separately fixed on the wheel rim of automobile, and each emitter comprises one for receiving the low frequency reception module of low frequency wake-up signal.Multiple low-frequency antenna is in order to launch each low frequency wake-up signal respectively.Receiver is installed on the interior of body of automobile, and this receiver comprises one or more low frequency driving module, and this one or more low frequency driving module is typically wire connected to each low-frequency antenna, for exporting each low frequency wake-up signal respectively to each low-frequency antenna.
In one embodiment of this invention, each low frequency driving module adopts differential driving, and this one or more low frequency driving module is by twisted pair line connection extremely each low-frequency antenna.
In one embodiment of this invention, each emitter is fixed on the tire of automobile in external mode.
In one embodiment of this invention, each emitter is fixed on the tire of automobile in built-in mode.
In one embodiment of this invention, each emitter also comprises the radiofrequency emitting module launching pressure and temperature signal.
In one embodiment of this invention, this receiver also comprises the Receiver Module receiving pressure and temperature signal.
In one embodiment of this invention, each low frequency wake-up signal comprises the low-frequency protocols frame of instruction different working modes, and wherein each mode of operation has corresponding detection and emission of radio frequency signals cycle.
In one embodiment of this invention, each low frequency wake-up signal is modulated signal.
The present invention is owing to adopting above technical scheme, make it compared with prior art, owing to simplifying former low-frequency trigger, low frequency driving is adjusted in receiver, eliminate the components and parts such as LIN transceiver, micro controller system, power module in 4 low-frequency triggers, therefore this embodiment reduces components and parts, reduce cost.In addition, after low-frequency trigger components and parts reduce, volume and weight reduces thereupon, installs and fixes more succinct reliable.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates the TPMS system construction drawing of existing two way communication.
Fig. 2 illustrates the TPMS system construction drawing of the two way communication of one embodiment of the invention.
Detailed description of the invention
Fig. 2 illustrates the TPMS system construction drawing of the two way communication of one embodiment of the invention.With reference to shown in Fig. 2, the TPMS system of the present embodiment comprises 4 emitters, 21,1 receiver 22 and 4 low-frequency antennas 23.Each emitter 21 can be separately fixed on the tire of automobile by external or built-in mode.For external fixed form, each emitter 21 can lock onto the oral area that tire tube valve exposes to wheel rim, is fixed on wheel rim by tire tube valve.For built-in fixed form, the partial fixing that each emitter 21 can be positioned at wheel rim inside by tire tube valve in wheel rim inside (with reference to China Patent Publication No. CN101890885A), or is fixed on wheel rim inside by the mode such as gluing.4 low-frequency antennas 23 can be fixed near 4 emitters 21, as wheel cover or mud guard place.
Receiver 22 can be fixed on interior of body.Receiver 22 can connect storage battery or ignition wire, by bus (such as CAN) and other ECU unit communication of vehicle.Receiver 22 mainly comprises micro controller system 201, Receiver Module 202, low frequency driving module 203, CAN transceiver 204, watchdog circuit 205, power module 206 etc.With existing receiver, such as shown in Fig. 1, receiver is compared, and the feature of the present embodiment receiver 22 is to add 4 low frequency driving modules 203, eliminates LIN transceiver.Low frequency signal between receiver 22 and each low-frequency antenna 23 preferably adopts differential driving.Therefore receiver 22 and each low-frequency antenna 23 are by twisted pair line connection, and preferably use Shielded Twisted Pair.Although the present embodiment illustrates 4 low frequency driving modules 203, but being appreciated that the low frequency driving module 203 needed for driving 4 low-frequency antennas is not limited to 4, also can be 1 or 2.
Because receiver 22 inside comprises low frequency driving module 203, the low-frequency antenna 23 that existing low-frequency trigger can be significantly simplified substitutes.Typically, in each low-frequency antenna 23, only have 1 low-frequency coil, be connected resonance to 125kHz frequency with the electric capacity of each low frequency driving module 202 of receiver 22.
The emitter of the present embodiment can adopt existing transmitter architecture.Such as, emitter can comprise micro controller system, low frequency reception module, battery, radiofrequency emitting module, pressure, temperature sensor etc.Like this, emitter can be waken up by low frequency signal, sends RF data.
Although the present embodiment is described for 4 emitters, 21,4 low-frequency antennas 23, be appreciated that this is only the example of adaptation four tire automobiles.If motor tire is more than 4, then the number of emitter and low-frequency antenna can correspondingly change.
When receiver 22 needs to receive the signal from each emitter 21, directly can control 4 road low frequency driving modules 203, send low frequency wake-up signal by each low-frequency antenna 23, respectively low frequency wake-up be carried out to each emitter 21.
On the other hand, on low frequency control policy.The present embodiment improves the mode of the triggering acquisition data of existing question-response, changes to the conversion and control of emitter mode of operation.Receiver 22 by different low-frequency protocols frames, can require that each emitter 21 keeps different mode of operations, under each mode of operation, keeps detecting and the emission of radio frequency signals cycle.For example, when driving states have changed, such as the speed of a motor vehicle exceedes certain numerical value, and receiver 22 sends the low frequency signal frame of corresponding states, requires that each emitter 21 improves emission of radio frequency signals frequency.After flame-out, receiver 22 can send low frequency signal and to stop working frame, controls each emitter 21 and enters sleep state.This design, can reduce low frequency and trigger the frequency, reduce energy consumption, reduces receiver to the expense of low frequency driving, also reduces the interference of EMC.
The present embodiment can also improve original low frequency trigger mode, and coding 4kHz data, modulate 125kHz sinusoidal waveform in ASK mode.Emitter 21 carries out demodulation after receiving 125kHz signal, decoding 4kHz data, and judges that data realize different control.Like this, the modulation of a byte can realize 256 kinds of different LF signal frames, can realize, to the conversion of emitter more multi-operation mode, improve emitter work efficiency, reducing consumption of current.
The TPMS system of the above embodiment of the present invention has following beneficial effect compared with existing system:
1, owing to simplifying former low-frequency trigger, low frequency driving is adjusted in receiver, eliminate 5 LIN transceivers altogether, cancel micro controller system, the power module in 4 low-frequency triggers, only comprise low-frequency coil, therefore this embodiment reduces components and parts, reduce cost;
2, after low-frequency trigger components and parts reduce, volume and weight reduces thereupon, installs and fixes more succinct reliable;
3, the LIN that the present embodiment eliminates between receiver with low-frequency trigger communicates, directly control low frequencies by receiver, decrease the software overhead of communication, shorten the period of emitter, decrease the detection of startup self-detection to low-frequency trigger, decrease the trouble diagnosing of low-frequency trigger and the transmission of failure code and storage;
4, change control policy, reduce overall energy consumption, reduce EMC interference;
5, use the low frequency signal of modulating wave, increase work efficiency, reduce energy consumption.
Although the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, change or the replacement of various equivalence also can be made when not departing from spirit of the present invention, therefore, as long as all will drop in the scope of claims of the application the change of above-described embodiment, modification in spirit of the present invention.
Claims (8)
1. a system for monitoring pressure in tyre for two way communication, comprising:
Multiple emitter, is separately fixed on the tire of automobile, and each emitter comprises one for receiving the low frequency reception module of low frequency wake-up signal;
Multiple low-frequency antenna, in order to launch each low frequency wake-up signal respectively; And
Receiver, is installed on the interior of body of automobile, and this receiver comprises one or more low frequency driving module, and this one or more low frequency driving module is typically wire connected to each low-frequency antenna, for exporting each low frequency wake-up signal respectively to each low-frequency antenna.
2. the system for monitoring pressure in tyre of two way communication as claimed in claim 1, is characterized in that, each low frequency driving module adopts differential driving, and this one or more low frequency driving module is by twisted pair line connection extremely each low-frequency antenna.
3. the system for monitoring pressure in tyre of two way communication as claimed in claim 1, it is characterized in that, each emitter is fixed on the tire of automobile in external mode.
4. the system for monitoring pressure in tyre of two way communication as claimed in claim 1, it is characterized in that, each emitter is fixed on the tire of automobile in built-in mode.
5. the system for monitoring pressure in tyre of two way communication as claimed in claim 1, it is characterized in that, each emitter also comprises the radiofrequency emitting module launching pressure and temperature signal.
6. the system for monitoring pressure in tyre of two way communication as claimed in claim 5, it is characterized in that, this receiver also comprises the Receiver Module receiving pressure and temperature signal.
7. the system for monitoring pressure in tyre of two way communication as claimed in claim 5, is characterized in that, each low frequency wake-up signal comprises the low-frequency protocols frame of instruction different working modes, and wherein each mode of operation has corresponding detection and emission of radio frequency signals cycle.
8. the system for monitoring pressure in tyre of the two way communication as described in claim 1 or 7, is characterized in that, each low frequency wake-up signal is modulated signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522102.5A CN104553635A (en) | 2013-10-29 | 2013-10-29 | Two-way communication tire pressure monitoring system |
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| CN201310522102.5A CN104553635A (en) | 2013-10-29 | 2013-10-29 | Two-way communication tire pressure monitoring system |
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| CN104553635A true CN104553635A (en) | 2015-04-29 |
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| CN201310522102.5A Pending CN104553635A (en) | 2013-10-29 | 2013-10-29 | Two-way communication tire pressure monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128606A (en) * | 2015-09-18 | 2015-12-09 | 薛骥 | Tire pressure sensor positioning method and system for vehicle tire |
| CN107422716A (en) * | 2017-04-20 | 2017-12-01 | 上海保隆汽车科技股份有限公司 | The test device and test control method of TPMS systems |
| CN110121434A (en) * | 2017-10-30 | 2019-08-13 | 太平洋工业株式会社 | Tire condition detecting device |
| CN110132480A (en) * | 2019-06-17 | 2019-08-16 | 青岛大学 | A kind of tire intelligent checking system |
| CN111114213A (en) * | 2020-01-03 | 2020-05-08 | 南京泰晟科技实业有限公司 | TPMS automatic calibration device and method |
| CN113619334A (en) * | 2021-09-13 | 2021-11-09 | 江西五十铃汽车有限公司 | Tire pressure sensor matching system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040041699A1 (en) * | 2002-09-03 | 2004-03-04 | Nantz John S. | System and method for adaptive variable magnetic field generator |
| EP1428694A2 (en) * | 2002-12-10 | 2004-06-16 | Alps Electric Co., Ltd. | Passive keyless entry device for monitoring tire pneumatic pressure by bidirectional communication |
| EP1227018B1 (en) * | 2001-01-29 | 2005-10-19 | The Goodyear Tire & Rubber Company | Monitoring pneumatic tire conditions |
| US20060259214A1 (en) * | 2005-05-11 | 2006-11-16 | Ford Global Technologies, Llc | Method and apparatus for automatically identifying the location of pressure sensors in a tire pressure monitoring system |
| US20070262856A1 (en) * | 2006-05-15 | 2007-11-15 | Denso Corporation | Batteryless tire inflation pressure detecting apparatus with improved power-saving configuration |
| CN101797873A (en) * | 2009-02-06 | 2010-08-11 | 环隆电气股份有限公司 | Power saving method for tyre pressure monitoring system |
| KR20120053763A (en) * | 2010-11-18 | 2012-05-29 | 현대모비스 주식회사 | Apparatus for recognizing position sensor in tire pressure monitoring system and method thereof |
| CN202448688U (en) * | 2012-02-14 | 2012-09-26 | 联创汽车电子有限公司 | Automobile tire pressure monitoring device |
-
2013
- 2013-10-29 CN CN201310522102.5A patent/CN104553635A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1227018B1 (en) * | 2001-01-29 | 2005-10-19 | The Goodyear Tire & Rubber Company | Monitoring pneumatic tire conditions |
| US20040041699A1 (en) * | 2002-09-03 | 2004-03-04 | Nantz John S. | System and method for adaptive variable magnetic field generator |
| EP1428694A2 (en) * | 2002-12-10 | 2004-06-16 | Alps Electric Co., Ltd. | Passive keyless entry device for monitoring tire pneumatic pressure by bidirectional communication |
| US20060259214A1 (en) * | 2005-05-11 | 2006-11-16 | Ford Global Technologies, Llc | Method and apparatus for automatically identifying the location of pressure sensors in a tire pressure monitoring system |
| US20070262856A1 (en) * | 2006-05-15 | 2007-11-15 | Denso Corporation | Batteryless tire inflation pressure detecting apparatus with improved power-saving configuration |
| CN101797873A (en) * | 2009-02-06 | 2010-08-11 | 环隆电气股份有限公司 | Power saving method for tyre pressure monitoring system |
| KR20120053763A (en) * | 2010-11-18 | 2012-05-29 | 현대모비스 주식회사 | Apparatus for recognizing position sensor in tire pressure monitoring system and method thereof |
| CN202448688U (en) * | 2012-02-14 | 2012-09-26 | 联创汽车电子有限公司 | Automobile tire pressure monitoring device |
Non-Patent Citations (2)
| Title |
|---|
| 冯永忠: "《汽车轮胎压力监测系统（TPMS）图解》", 31 January 2011, 机械工业出版社 * |
| 沈瑞琴: "《通信原理》", 31 August 2011, 中国铁道出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128606A (en) * | 2015-09-18 | 2015-12-09 | 薛骥 | Tire pressure sensor positioning method and system for vehicle tire |
| CN107422716A (en) * | 2017-04-20 | 2017-12-01 | 上海保隆汽车科技股份有限公司 | The test device and test control method of TPMS systems |
| CN107422716B (en) * | 2017-04-20 | 2023-09-29 | 保隆霍富(上海)电子有限公司 | Test device and test control method of TPMS (tire pressure monitor System) |
| CN110121434A (en) * | 2017-10-30 | 2019-08-13 | 太平洋工业株式会社 | Tire condition detecting device |
| CN110121434B (en) * | 2017-10-30 | 2021-04-06 | 太平洋工业株式会社 | Tire condition detection device |
| CN110132480A (en) * | 2019-06-17 | 2019-08-16 | 青岛大学 | A kind of tire intelligent checking system |
| CN111114213A (en) * | 2020-01-03 | 2020-05-08 | 南京泰晟科技实业有限公司 | TPMS automatic calibration device and method |
| CN113619334A (en) * | 2021-09-13 | 2021-11-09 | 江西五十铃汽车有限公司 | Tire pressure sensor matching system |
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