CN111483276A - Method for improving stability of tire pressure monitor and tire pressure monitor applying method - Google Patents
Method for improving stability of tire pressure monitor and tire pressure monitor applying method Download PDFInfo
- Publication number
- CN111483276A CN111483276A CN202010401478.0A CN202010401478A CN111483276A CN 111483276 A CN111483276 A CN 111483276A CN 202010401478 A CN202010401478 A CN 202010401478A CN 111483276 A CN111483276 A CN 111483276A
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- data
- tire pressure
- temperature
- receiving unit
- data wireless
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
Abstract
The invention provides a method for improving the stability of a tire pressure monitor, and relates to the field of automobile parts. The invention is based on the principle that the crystal oscillator frequency changes along with the temperature change, and the characteristic that the change curve of the crystal oscillator frequency changes like linear change, and corrects the situation that the tire pressure data transmission is not smooth due to the crystal oscillator frequency change caused by overhigh temperature of the tire in time. And the data transmitting frequency can be adjusted by combining the actual road condition, the power supply energy of the tire pressure sensor is saved, the signal error rate is reduced, the reliability and the stability of the tire pressure sensor are improved, and the vehicle accidents caused by the faults of the automobile tires are reduced.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a method for improving the stability of a tire pressure monitor.
Background
The tire pressure monitor is an indispensable automobile part for ensuring the safe operation of an automobile in the automobile industry, and in the prior art, the tire pressure monitor adopts a nondestructive testing and wireless data transmission method to monitor the tire pressure. Under normal conditions and in the laboratory environment, the stability of ordinary tire pressure monitor is all very good, and the error code condition appears rarely, and cost and reliability are also higher. However, for most common or low-grade tire pressure monitors, after the automobile runs for a period of time, the wireless transmission error rate of the tire pressure monitor also increases along with the temperature rise of the tire, mainly caused by the frequency drift of the crystal oscillator of the wireless transmitting part of the tire pressure monitor due to the influence of temperature.
Due to the problems, the working environment of the automobile tire pressure monitor is in a high-speed rotation and high-temperature state, the automobile tire pressure monitor is severe in most cases, the problem of frequency drift of the tire pressure monitor is easily caused, and the tire pressure display device and the alarm device in the automobile cannot accurately receive the tire pressure information sent by the sensor in the tire, so that abnormality cannot be found in time, and further more serious consequences such as traffic accidents are caused.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for improving the stability of a tire pressure monitor.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a high-stability tire pressure monitor comprises a tire pressure sensor, a data wireless transmitting unit, a temperature sensor, a data wireless receiving unit, a data processing unit, a tire pressure display device and an alarm device, wherein the tire pressure sensor, the data wireless transmitting unit and the temperature sensor are electrically connected with each other and are arranged in a tire; the data processing unit is internally provided with a crystal oscillator frequency change along with temperature rule table, and the frequency of the data wireless receiving unit is corrected according to the crystal oscillator frequency change along with temperature list and the temperature data sent by the data wireless transmitting unit so as to ensure the frequency synchronization of the data wireless receiving unit and the data wireless transmitting unit.
Further, the tire pressure sensor, the data wireless transmitting unit and the temperature sensor are electrically connected, the data wireless receiving unit, the data processing unit, the tire pressure display device and the alarm device are electrically connected, the data processing unit sets a tire pressure safety data range, and when the tire pressure data received by the data wireless receiving unit exceeds the tire pressure safety data range, the alarm device is started to send out an alarm.
A method of improving tire pressure monitor stability, comprising the steps of:
testing the rule that the frequency of the data wireless transmitting unit and the data wireless receiving unit changes along with the ambient temperature, making a table which can be read by the data processing unit, and inputting the table into the data processing unit;
mounting each component to a corresponding position of the automobile;
when the temperature of the working environment of the data wireless transmitting unit rises, the temperature sensor sends the temperature data to the data wireless receiving unit, and the data processing unit adjusts the frequency of the data receiving unit according to the temperature data and the crystal oscillator frequency along with the temperature change list until the frequency of the data receiving unit is consistent with that of the data transmitting unit. The same frequency is achieved, and the signal instruction can be received more accurately and timely.
The invention has the beneficial effects that: the invention is based on the principle that the crystal oscillator frequency changes along with the temperature change, and the characteristic that the change curve of the crystal oscillator frequency changes like linear change, and corrects the situation that the tire pressure data transmission is not smooth due to the crystal oscillator frequency change caused by overhigh temperature of the tire in time. And the data transmitting frequency can be adjusted by combining the actual road condition, the power supply energy of the tire pressure sensor is saved, the signal error rate is reduced, the reliability and the stability of the tire pressure sensor are improved, and the vehicle accidents caused by the faults of the automobile tires are reduced.
Drawings
Fig. 1 is a schematic view of a tire pressure monitor of the present invention.
Fig. 2 is a table listing crystal frequency as a function of temperature.
Fig. 3 is a bit error rate comparison table.
Detailed Description
The invention will be further illustrated with reference to specific examples:
with reference to fig. 1 and fig. 2, a high-stability tire pressure monitor includes a tire pressure sensor, a data wireless transmitting unit, a temperature sensor, a data wireless receiving unit, a data processing unit, a tire pressure display device, and an alarm device, wherein the tire pressure sensor, the data wireless transmitting unit, and the temperature sensor are electrically connected to each other and mounted inside a tire, and the data wireless receiving unit, the data processing unit, the tire pressure display device, and the alarm device are disposed inside a cab; the data processing unit is internally provided with a crystal oscillator frequency change along with temperature change rule table, and the frequency of the data wireless receiving unit is corrected according to the crystal oscillator frequency change along with temperature change list and the temperature data sent by the data wireless transmitting unit so as to ensure that the frequencies of the data wireless receiving unit and the data wireless transmitting unit are synchronous and do not deviate too much. The tire pressure monitoring device comprises a tire pressure sensor, a data wireless transmitting unit, a temperature sensor and a data wireless receiving unit, wherein the data wireless receiving unit, the data processing unit, a tire pressure display device and an alarm device are electrically connected, the data processing unit sets a tire pressure safety data range, and when the tire pressure data received by the data wireless receiving unit exceeds the tire pressure safety data range, the alarm device is started to send out an alarm.
And testing the rule that the frequency of the data wireless transmitting unit and the data wireless receiving unit changes along with the ambient temperature, making a table which can be read by the data processing unit, and inputting the table into the data processing unit.
And mounting each component to the corresponding position of the automobile.
When the temperature of the working environment of the data wireless transmitting unit rises, the temperature sensor sends the temperature data to the data wireless receiving unit, the data processing unit adjusts the frequency of the data receiving unit according to the temperature data and the crystal oscillator frequency along with the temperature change list until the frequency of the data receiving unit is consistent with the frequency of the data transmitting unit, and when the temperature of the tire changes by 10 ℃, the frequency of the data receiving unit is adjusted once.
The tire pressure monitor using the method provided by the present application and the tire pressure monitor not using the method provided by the present application are tested separately, and the error rates thereof are recorded, as shown in fig. 3, it can be known from the data in fig. 3 that the error rate of the tire pressure monitor using the method provided by the present application can be greatly reduced.
Finally, it should be noted that the embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to make further changes without departing from the spirit of the invention, and all such changes are intended to fall within the scope of the appended claims.
Claims (3)
1. A high stability tire pressure monitor which characterized in that: the tire pressure monitoring device comprises a tire pressure sensor, a data wireless transmitting unit, a temperature sensor, a data wireless receiving unit, a data processing unit, a tire pressure display device and an alarm device, wherein the tire pressure sensor, the data wireless transmitting unit and the temperature sensor are electrically connected with each other and are arranged in a tire; the data processing unit is internally provided with a crystal oscillator frequency change along with temperature rule list, and the frequency of the data wireless receiving unit is corrected according to the crystal oscillator frequency change along with temperature list and the temperature data sent by the data wireless transmitting unit so as to ensure the frequency synchronization of the data wireless receiving unit and the data wireless transmitting unit.
2. The high stability tire pressure monitor of claim 1, wherein: the tire pressure monitoring device comprises a tire pressure sensor, a data wireless transmitting unit, a temperature sensor and a data wireless receiving unit, wherein the data wireless receiving unit, the data processing unit, a tire pressure display device and an alarm device are electrically connected, the data processing unit sets a tire pressure safety data range, and when the tire pressure data received by the data wireless receiving unit exceeds the tire pressure safety data range, the alarm device is started to send out an alarm.
3. A method of improving tire pressure monitor stability, comprising: the method comprises the following steps:
testing the rule that the frequency of the data wireless transmitting unit and the data wireless receiving unit changes along with the ambient temperature, making a table which can be read by the data processing unit, and inputting the table into the data processing unit;
mounting each component to a corresponding position of the automobile;
when the temperature of the working environment of the data wireless transmitting unit is increased or decreased, the temperature sensor sends the temperature data to the data wireless receiving unit, and the data processing unit adjusts the frequency of the data receiving unit according to the temperature data and the crystal oscillator frequency along with the temperature change list until the frequency of the data receiving unit is consistent with that of the data transmitting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401478.0A CN111483276A (en) | 2020-05-13 | 2020-05-13 | Method for improving stability of tire pressure monitor and tire pressure monitor applying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401478.0A CN111483276A (en) | 2020-05-13 | 2020-05-13 | Method for improving stability of tire pressure monitor and tire pressure monitor applying method |
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| CN111483276A true CN111483276A (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010401478.0A Pending CN111483276A (en) | 2020-05-13 | 2020-05-13 | Method for improving stability of tire pressure monitor and tire pressure monitor applying method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6243007B1 (en) * | 1999-12-01 | 2001-06-05 | Mclaughlin John T. | Tire condition monitoring system |
| EP1820671A2 (en) * | 2006-02-17 | 2007-08-22 | Alps Electric Co., Ltd. | System of detecting tire information |
| CN200981462Y (en) * | 2006-08-28 | 2007-11-28 | 沈维荣 | Vehicle tyre pressure monitoring, displaying and warning device |
| CN203191710U (en) * | 2013-02-26 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Time synchronization system of three screens of automobile |
| CN104175820A (en) * | 2014-09-09 | 2014-12-03 | 南京泰晟科技实业有限公司 | Tire pressure monitoring device with wireless transceiver |
-
2020
- 2020-05-13 CN CN202010401478.0A patent/CN111483276A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6243007B1 (en) * | 1999-12-01 | 2001-06-05 | Mclaughlin John T. | Tire condition monitoring system |
| EP1820671A2 (en) * | 2006-02-17 | 2007-08-22 | Alps Electric Co., Ltd. | System of detecting tire information |
| CN200981462Y (en) * | 2006-08-28 | 2007-11-28 | 沈维荣 | Vehicle tyre pressure monitoring, displaying and warning device |
| CN203191710U (en) * | 2013-02-26 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Time synchronization system of three screens of automobile |
| CN104175820A (en) * | 2014-09-09 | 2014-12-03 | 南京泰晟科技实业有限公司 | Tire pressure monitoring device with wireless transceiver |
Non-Patent Citations (1)
| Title |
|---|
| 黄志伟: "《锁相环与频率合成器电路设计》", 31 October 2008, 西安电子科技大学出版社 * |
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Application publication date: 20200804 |
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