CN101520370A - Method and device for monitoring tire pressure by utilizing vehicle body control module - Google Patents
Method and device for monitoring tire pressure by utilizing vehicle body control module Download PDFInfo
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- CN101520370A CN101520370A CN200910132391A CN200910132391A CN101520370A CN 101520370 A CN101520370 A CN 101520370A CN 200910132391 A CN200910132391 A CN 200910132391A CN 200910132391 A CN200910132391 A CN 200910132391A CN 101520370 A CN101520370 A CN 101520370A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000009466 transformation Effects 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002618 waking effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention relates to a method and a device for conveniently and effectively monitoring tire pressure by utilizing vehicle body control module. A tire pressure monitoring emission module is arranged on a tire; the emission module checks the pressure and the temperature of a tire and sends out the checked data through an antenna after the frequency transformation modulation. The invention is characterized in that a vehicle body control module is internally provided with a receiving chip which receives and modulates the tire checking data; the receiving chip has the amplitude transformation modulation/frequency transformation modulation mode switching control function, can receive the amplitude transformation modulation mode signals of a RKE system and the frequency transformation modulation mode signals of an emission module; and the vehicle body control module displays the tire checking data on an instrument through a CAN bus.
Description
Technical field
The present invention relates to utilize car body control module to carry out the method and the device of monitoring tire pressure.
Background technology
Existing system for monitoring pressure in tyre comprises transmitter module and receiver module, transmitter module is installed in the tire, can directly detect the air pressure and the temperature of each tire, and measurement data radioed to receiving antenna, receiving antenna transfers data to the receiver module that is installed in below the instrument panel by concentric cable, receiver module is responsible for demodulation, analyzes data and is given instrument with data by CAN (controller local area network) bus transfer, instrument shows the pressure and temperature of each tire, takes place as tire that instrument can in time give the alarm to the driver when unusual.
RKE system (non-key gate control system) can pass through ASK (amplitude conversion modulation) receiving mode and receive remote signal, and remote signal carried out demodulation, by the microcontroller in the car body control module data are decoded, analyzed to signal after the demodulation, thereby realize setting up defences or separating anti-operation of car load.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of method and device that utilizes car body control module to carry out monitoring tire pressure, can monitor tire pressure easily and effectively.
Based on same inventive concept, the present invention has two technical schemes:
1, a kind of method of utilizing car body control module to carry out monitoring tire pressure, the monitoring tire pressure transmitter module is housed on tire, this transmitter module detects tire pressure and temperature, and the data that detect are launched by antenna through frequency transformation modulation back, it is characterized in that:
Be provided with receiving chip in the car body control module, this receiving chip to tire checking data receive, demodulation, this receiving chip tool amplitude conversion modulation/frequency transformation modulating mode switching control function can receive the amplitude conversion modulating mode signal of RKE system and the frequency transformation modulating mode signal of transmitter module; Car body control module shows tire checking data by the CAN bus on instrument.
The low frequency wake-up circuit is arranged in the car body control module, and this low frequency wake-up circuit can send the low frequency wake-up signal, is used for waking up corresponding monitoring tire pressure transmitter module; The low frequency wake-up circuit is arranged on the monitoring tire pressure transmitter module, receive the low frequency wake-up signal that car body control module sends after, wake the sensor in the monitoring tire pressure transmitter module up, tire pressure and temperature are detected.
Car body control module detects the speed of a motor vehicle, is the Parking pattern when speed of a motor vehicle is lower than reference value, is the driving pattern when speed of a motor vehicle is higher than reference value;
At Parking pattern or driving pattern, car body control module is by the control to the low frequency wake-up circuit, and control monitoring tire pressure transmitter module makes it to be under the different mode of operations and controls the time interval that sends data.
2, a kind of device of realizing the described monitoring tire pressure method of claim 1, it is characterized in that: be provided with the receiving chip with amplitude conversion modulation/frequency transformation modulating mode switching control function in the car body control module, this receiving chip signal output part connects the microcontroller in the car body control module; Car body control module carries out communication by CAN bus and instrument, and instrument shows tire pressure detection information.
Also be provided with the low frequency wake-up circuit in the car body control module, the microcontroller in the control termination car body control module of low frequency wake-up circuit, this low frequency wake-up circuit can wake the monitoring tire pressure transmitter module up.
The beneficial effect that the present invention has:
The present invention is integrated into car body control module with RKE system and monitoring tire pressure, makes monitoring tire pressure convenient effectively.The low frequency wake-up circuit of setting up in the car body control module can be realized the effectively control in real time to the monitoring tire pressure transmitter module.
Description of drawings
Accompanying drawing is the circuit structure block diagram of apparatus of the present invention.
Embodiment
As shown in the figure, car body control module and instrument belong to two nodes on the CAN bus, and car body control module sends tire pressure detection information to instrument by the CAN bus.CAN transceiver in the car body control module is selected TJA1040 for use, be provided with the receiving chip (selecting TDA5210 for use) with amplitude conversion modulation (ASK)/frequency transformation modulation (FSK) mode switch control function in the receiving circuit of car body control module, this receiving chip signal output part connects the microcontroller in the car body control module.Also be provided with the low frequency wake-up circuit in the car body control module, the microcontroller in the control termination car body control module of low frequency wake-up circuit, this low frequency wake-up radiating circuit can wake the monitoring tire pressure transmitter module up.
The monitoring tire pressure transmitter module is housed on tire, this transmitter module detects tire pressure and temperature, and the data that detect are modulated (FSK) back through frequency transformation launch by antenna, receiving chip in the car body control module to tire checking data receive, demodulation, simultaneously, this chip can also receive amplitude conversion modulating mode (ASK) signal of RKE system.Car body control module determines the radio-frequency information of current which system to be received by the igniting information of current vehicle, switches between two kinds of receiving modes of amplitude conversion modulation/frequency transformation modulation.
Be provided with the low frequency wake-up circuit in the car body control module, this low frequency wake-up circuit can send the low frequency wake-up signal, is used for waking up corresponding monitoring tire pressure transmitter module; Also be provided with the low frequency wake-up circuit on the monitoring tire pressure transmitter module, receive the low frequency wake-up signal that car body control module sends after, wake the sensor in the monitoring tire pressure transmitter module up, tire pressure and temperature are detected.
Tire and car body control module write car body control module with ID and the positional information thereof that is arranged in each tire inner sensor after assembling on the car load is finished.After car body control module is judged engine ignition, wake each sensor in the tire up by the low frequency wake-up circuit, whether the detection wheel tire pressure is normal, if tire pressure is normal, enters corresponding modes, if abnormal tyre pressure is then reported to the police.
Car body control module detects the speed of a motor vehicle, and the speed of a motor vehicle is the Parking pattern when being lower than reference value (20 kms/hour), and the speed of a motor vehicle is the driving pattern when being higher than reference value (20 kms/hour); At different patterns, car body control module sends the time interval of data in the control monitoring tire pressure transmitter module, thereby prolongs the serviceable life of sensor in the monitoring tire pressure transmitter module by the control to the low frequency wake-up circuit.
Under the Parking pattern, when not changing as if the air pressure in the tire, sensor per hour sends message one time, reports current tire pressure and temperature information.If tire pressure reduced or rising 200kPa in 30 seconds, launch a secondary data.Under the driving pattern, sensor 3 seconds detects a pressure data, if pressure (30 seconds) emission one secondary data normally then is regularly then launched data continuously as pressure low-pressure.
Car body control module has the undervoltage warning function, and the one or more tire pressure in doughnut are lower than under-voltage setting value, and car body control module sent undervoltage warning and indicates the position of under-voltage tire in 6 seconds.When the one or more tire pressure in the doughnut reduced with the speed greater than 30kPa/min, car body control module sent quick leakage alarm signal in 1 minute, and indicated the position of flat.If should in 10 minutes, send alerting signal when car body control module itself breaks down.
Claims (5)
1, a kind of method of utilizing car body control module to carry out monitoring tire pressure, the monitoring tire pressure transmitter module is housed on tire, this transmitter module detects tire pressure and temperature, and the data that detect are launched by antenna through frequency transformation modulation back, it is characterized in that:
Be provided with receiving chip in the car body control module, this receiving chip to tire checking data receive, demodulation, this receiving chip tool amplitude conversion modulation/frequency transformation modulating mode switching control function can receive the amplitude conversion modulating mode signal of RKE system and the frequency transformation modulating mode signal of transmitter module; Car body control module shows tire checking data by the CAN bus on instrument.
2, the method for utilizing car body control module to carry out monitoring tire pressure according to claim 1 is characterized in that:
Be provided with the low frequency wake-up circuit in the car body control module, this low frequency wake-up circuit can send the low frequency wake-up signal, is used for waking up corresponding monitoring tire pressure transmitter module;
Also be provided with the low frequency wake-up circuit on the monitoring tire pressure transmitter module, receive the low frequency wake-up signal that car body control module sends after, wake the sensor in the monitoring tire pressure transmitter module up, tire pressure and temperature are detected.
3, the method for utilizing car body control module to carry out monitoring tire pressure according to claim 2 is characterized in that:
Car body control module detects the speed of a motor vehicle, is the Parking pattern when speed of a motor vehicle is lower than reference value, is the driving pattern when speed of a motor vehicle is higher than reference value;
At Parking pattern or driving pattern, car body control module is by the control to the low frequency wake-up circuit, and control monitoring tire pressure transmitter module makes it to be under the different mode of operations and controls the time interval that sends data.
4, a kind of device of realizing the described monitoring tire pressure method of claim 1, it is characterized in that: be provided with the receiving chip with amplitude conversion modulation/frequency transformation modulating mode switching control function in the car body control module, this receiving chip signal output part connects the microcontroller in the car body control module; Car body control module carries out communication by CAN bus and instrument, and instrument shows tire pressure detection information.
5, the device of realization monitoring tire pressure method according to claim 4, it is characterized in that: also be provided with the low frequency wake-up circuit in the car body control module, microcontroller in the control termination car body control module of low frequency wake-up circuit, this low frequency wake-up circuit can wake the monitoring tire pressure transmitter module up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910132391A CN101520370A (en) | 2009-04-01 | 2009-04-01 | Method and device for monitoring tire pressure by utilizing vehicle body control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910132391A CN101520370A (en) | 2009-04-01 | 2009-04-01 | Method and device for monitoring tire pressure by utilizing vehicle body control module |
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| Publication Number | Publication Date |
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| CN101520370A true CN101520370A (en) | 2009-09-02 |
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| CN200910132391A Pending CN101520370A (en) | 2009-04-01 | 2009-04-01 | Method and device for monitoring tire pressure by utilizing vehicle body control module |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767519A (en) * | 2010-02-10 | 2010-07-07 | 广东铁将军防盗设备有限公司 | Tyre pressure monitoring system and tyre pressure vehicular device thereof |
| CN101985267A (en) * | 2010-03-29 | 2011-03-16 | 苏州市梯欧梯汽车电子有限公司 | Automobile safety system comprising intelligent passive keyless entry system and tire pressure monitoring system, and control method |
| CN102424032A (en) * | 2011-12-21 | 2012-04-25 | 湖南工业大学 | Remote control key, tire pressure monitoring and engine anti-theft locking system |
| CN102431397A (en) * | 2011-11-09 | 2012-05-02 | 吉林市航盛宏宇电子有限公司 | Wireless charging monitoring device for automobile tire pressure |
| CN103112323A (en) * | 2013-02-17 | 2013-05-22 | 奇瑞汽车股份有限公司 | Automotive tire pressure monitoring system and monitoring method thereof |
| CN103818204A (en) * | 2014-03-06 | 2014-05-28 | 深圳市道通科技有限公司 | Method and device for tire pressure monitoring |
| CN104417287A (en) * | 2013-08-22 | 2015-03-18 | 江苏卡威汽车工业集团有限公司 | Tire detecting and alarming system |
| CN106248401A (en) * | 2016-08-30 | 2016-12-21 | 万通智控科技股份有限公司 | A kind of electronic module and vehicle tyre wear detecting system |
| CN106515321A (en) * | 2016-11-11 | 2017-03-22 | 常熟理工学院 | Tyre pressure monitoring system based on single chip microcomputer |
| CN106739857A (en) * | 2016-12-30 | 2017-05-31 | 重庆集诚汽车电子有限责任公司 | The wireless frequency hopping tire pressure detecting sensor and system of a kind of integrated Body Control |
| CN110831787A (en) * | 2017-06-26 | 2020-02-21 | 株式会社普利司通 | Tire pressure monitoring system, tire pressure monitoring method, tire pressure monitoring program, and vehicle |
-
2009
- 2009-04-01 CN CN200910132391A patent/CN101520370A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767519B (en) * | 2010-02-10 | 2013-05-01 | 广东铁将军防盗设备有限公司 | Tyre pressure monitoring system and tyre pressure vehicular device thereof |
| CN101767519A (en) * | 2010-02-10 | 2010-07-07 | 广东铁将军防盗设备有限公司 | Tyre pressure monitoring system and tyre pressure vehicular device thereof |
| CN101985267A (en) * | 2010-03-29 | 2011-03-16 | 苏州市梯欧梯汽车电子有限公司 | Automobile safety system comprising intelligent passive keyless entry system and tire pressure monitoring system, and control method |
| CN102431397A (en) * | 2011-11-09 | 2012-05-02 | 吉林市航盛宏宇电子有限公司 | Wireless charging monitoring device for automobile tire pressure |
| CN102424032A (en) * | 2011-12-21 | 2012-04-25 | 湖南工业大学 | Remote control key, tire pressure monitoring and engine anti-theft locking system |
| CN103112323B (en) * | 2013-02-17 | 2016-07-13 | 奇瑞汽车股份有限公司 | A kind of monitoring method of Tire Pressure Monitor System |
| CN103112323A (en) * | 2013-02-17 | 2013-05-22 | 奇瑞汽车股份有限公司 | Automotive tire pressure monitoring system and monitoring method thereof |
| CN104417287A (en) * | 2013-08-22 | 2015-03-18 | 江苏卡威汽车工业集团有限公司 | Tire detecting and alarming system |
| CN103818204A (en) * | 2014-03-06 | 2014-05-28 | 深圳市道通科技有限公司 | Method and device for tire pressure monitoring |
| CN106248401A (en) * | 2016-08-30 | 2016-12-21 | 万通智控科技股份有限公司 | A kind of electronic module and vehicle tyre wear detecting system |
| CN106515321A (en) * | 2016-11-11 | 2017-03-22 | 常熟理工学院 | Tyre pressure monitoring system based on single chip microcomputer |
| CN106739857A (en) * | 2016-12-30 | 2017-05-31 | 重庆集诚汽车电子有限责任公司 | The wireless frequency hopping tire pressure detecting sensor and system of a kind of integrated Body Control |
| CN110831787A (en) * | 2017-06-26 | 2020-02-21 | 株式会社普利司通 | Tire pressure monitoring system, tire pressure monitoring method, tire pressure monitoring program, and vehicle |
| US11179977B2 (en) | 2017-06-26 | 2021-11-23 | Bridgestone Corporation | Tire pressure monitoring system, tire pressure monitoring method, tire pressure monitoring program, and vehicle |
| CN110831787B (en) * | 2017-06-26 | 2022-02-25 | 株式会社普利司通 | Tire pressure monitoring system, tire pressure monitoring method, tire pressure monitoring program, and vehicle |
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Open date: 20090902 |