CN107264191B - A kind of TPMS sensor sending method, apparatus and system - Google Patents
A kind of TPMS sensor sending method, apparatus and system Download PDFInfo
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- CN107264191B CN107264191B CN201710415436.0A CN201710415436A CN107264191B CN 107264191 B CN107264191 B CN 107264191B CN 201710415436 A CN201710415436 A CN 201710415436A CN 107264191 B CN107264191 B CN 107264191B
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- tire pressure
- sensor
- variation
- detection
- tire
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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
- 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
-
- 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
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0452—Antenna structure, control or arrangement
-
- 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
-
- 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
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to field of automobile control, disclose a kind of TPMS sensor sending method, comprising: judge vehicle driving state；When the car is at rest, judge that tire pressure changes, reporting policy is changed using different tire pressures according to different tire pressure variations.Invention additionally discloses a kind of TPMS sensor device and systems, comprising: acceleration transducer, microprocessor, pressure sensor, power supply, battery voltage sensor, low frequency reception antenna and high frequency transmission antenna and alarm module.The present invention improve sensor send signal reliability, achieve the effect that more rapidly with accurate warning reminding；Inflation, deflate reports in time, can satisfy user's primary demand；Sensor battery level can also be saved, sensor service life is extended, reduces maintenance cost.
Description
Technical field
The present invention relates to field of automobile control, more particularly to a kind of TPMS sensor sending method, apparatus and system.
Background technique
In direct-type TPMS system, sensor is sent out high frequency letter in the tire that can be rotated in a wireless form
Number, under the influence of vehicle electromagnetic environment, TPMS system parts EMC performance parameter can neither be more than that vehicle EMC requires limitation,
The reliability for guaranteeing the transmission of tire signal again, the sensor for being mounted on inside tires are needed to shield around wheel rim, tire, be born
High speed rotation reliably exports wireless signal to the TPMS receiver of passenger compartment is typically mounted at, to be transferred to display dress
It sets, informs driver.
Sensor is in normal use process, in order to save electricity, is divided into different operating modes according to speed.Vehicle is quiet
When only, it is more slow that sensor sends data, or even does not send out data；When vehicle movement, in order to guarantee that vehicle can be fast as far as possible
Speed and the tire condition information for accurately receiving sensor upload provide effectively in abnormal tyre situation to driver
Warning and prompt, data can be sent out relatively fast.Car tyre pressure monitoring system uses directly built-in active substantially at present
The scheme of TPMS system, since sensor is mounted on inside tires, the dynamic balancing limitation of tire rotation, it is desirable that the quality of sensor
Not too much with volume and the smaller the better, the capacity and volume of battery directly limit sensor bulk and quality again and can not set
Very little is counted, in the service life for determining to need to consider sensor between battery volume and capacity again.Simultaneously as TPMS system is mostly
For open cycle system, static state is lower and initializes in a period of time, and sensor immediately can not quickly report tire information, and be supplied to
Driver.Therefore, find out a kind of reasonable sending logic of sensor very it is necessary to.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of TPMS sensor sending methods, apparatus and system, for improving sensor hair
The reliability for the number of delivering letters, achieve the effect that more rapidly with accurate warning reminding；Sensor battery level can also be saved, extends and passes
Sensor service life reduces maintenance cost.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of TPMS sensor sending methods, comprising:
Judge vehicle driving state；
When the car is at rest, judge that tire pressure changes, different tires is used according to different tire pressure variations
Buckling reporting policy.
Wherein, further includes:
When automobile is kept in motion, reporting policy is changed using dynamic tire pressure.
Wherein, tire pressure was detected for detection cycle with five seconds, when the variation of the tire pressure of continuous two detection cycles is less than 5kPa,
It is tactful using not reporting tire pressure to change；When the variation of the tire pressure of continuous two detection cycles is greater than 5kPa and is less than 30kPa, use
Periodical tire pressure changes reporting policy；When the variation of the tire pressure of continuous two detection cycles is greater than 30kPa, using reporting tire immediately
Buckling strategy.
Wherein, it is tire pressure variation of periodic report that the periodical tire pressure variation reporting policy, which is with every 3 minutes,；It is described
Report tire pressure variation immediately to report a tire pressure variation.
Wherein, with five seconds for detection cycle detect tire pressure include repeated detection tire pressure data, every time detect tire pressure data with
Machine interval 20ms, 30ms, 50ms, 70ms or 110ms.
It wherein, further include carrying out periodical gas leakage detection；
If continuous two detection cycles are gas leakage, principal fault is reported；If not continuous two detection cycles are
Gas leakage then returns to detection tire pressure variation.
Invention additionally discloses a kind of TPMS sensor devices, comprising:
Acceleration transducer, for obtaining vehicle acceleration；
Microprocessor, the vehicle acceleration that will acquire calculate vehicle running state；
Pressure sensor, for detecting tire pressure data.
Invention additionally discloses a kind of TPMS sensing systems, comprising:
A kind of TPMS sensor device of the present invention；
Temperature sensor, for detecting tyre temperature, when tyre temperature is in preset alarm temperature range, record is at this time
Tyre temperature, starting alarm；When 5 ° of tyre temperature lower than record of tyre temperature, then cancel alarm；
Power supply, for providing electric power；
Battery voltage sensor, for detecting the voltage of the power supply；
Low frequency reception antenna and high frequency transmission antenna, for receiving the information of each sensor and sending information；
Alarm module for receiving information, and is alarmed.
(3) beneficial effect
A kind of TPMS sensor sending method provided by the invention, apparatus and system, improve that sensor sends signal can
By property, achieve the effect that more rapidly with accurate warning reminding；Inflation, deflate reports in time, can satisfy user's primary demand；Also
Sensor battery level can be saved, sensor service life is extended, reduces maintenance cost.
Detailed description of the invention
Fig. 1 is a kind of flow chart of TPMS sensor sending method of the present invention；
Fig. 2 is a kind of structure chart of TPMS sensor device of the present invention；
Fig. 3 is a kind of structure chart of TPMS sensing system of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention discloses a kind of TPMS sensor sending method characterized by comprising
Judge vehicle driving state；
When the car is at rest, judge that tire pressure changes, different tires is used according to different tire pressure variations
Buckling reporting policy.
Specifically, first starting self-check program before TPMS working sensor, self-test is carried out, after self-test completion,
Start to judge vehicle driving state.A velocity amplitude is preset, if current vehicle speed is less than or equal to preset velocity amplitude, is determined as
Theoretic vehicle remains static；When current vehicle speed is greater than preset velocity amplitude, then it is determined as at theoretic vehicle
In motion state.
The invention discloses a kind of TPMS sensor sending methods, under vehicle stationary state, judge that vehicle tire pressure changes,
And changed according to tire pressure and use different reporting policies, improve the reliability that sensor sends signal, reaches more rapidly and accurately
The effect of warning reminding；Inflation, deflate reports in time, can satisfy user's primary demand；Sensor battery electricity can also be saved
Amount extends sensor service life, reduces maintenance cost.
Wherein, further includes:
When automobile is kept in motion, reporting policy is changed using dynamic tire pressure, this dynamic reporting policy and TPMS are passed
Sensor model, automobile brand, tire brand, the relevant informations such as driving status are programmed decision.
Wherein, tire pressure was detected for detection cycle with five seconds, when the variation of the tire pressure of continuous two detection cycles is less than 5kPa,
It is tactful using not reporting tire pressure to change；When the variation of the tire pressure of continuous two detection cycles is greater than 5kPa and is less than 30kPa, use
Periodical tire pressure changes reporting policy；When the variation of the tire pressure of continuous two detection cycles is greater than 30kPa, using reporting tire immediately
Buckling strategy.With 5s for a tire pressure detection cycle, and the tire pressure data in continuous two periods subtract each other to obtain a tire pressure change
Change data.It is proved by abundant experimental results, under different operating conditions (such as hollow area), some changes can occur for tire pressure
Change, but all do not exceed 5kPa/10s, therefore when tire pressure variation is lower than 5kPa/10s, it is normal as tire pressure without reporting
Change process is considered as tire and is in normal condition.And tire pressure variation in 5kPa/10s-30kPa/10s and is greater than 30kPa/
When 10s, then tire pressure is not belonging to tire pressure normal variation, that is, is considered as tire and is in abnormal condition, be likely to be inflation or leakage at this time
Gas.Different reporting schemes are taken for 5kPa/10s-30kPa/10s and greater than two kinds of situations of 30kPa/10s, are become with tire pressure
Change 30kPa/10s is watershed, when being greater than 30kPa/10s, is in compared with the state of emergency, therefore reported data immediately；And it is greater than
5kPa/10s and when being less than 30kPa/10s, in the state relatively mitigated, therefore with periodical reported data.
Wherein, it is tire pressure variation of periodic report that the periodical tire pressure variation reporting policy, which is with every 3 minutes,；It is described
Report tire pressure variation immediately to report a tire pressure variation.
Wherein, with five seconds for detection cycle detect tire pressure include repeated detection tire pressure data, every time detect tire pressure data with
Machine interval 20ms, 30ms, 50ms, 70ms or 110ms.TPMS sensor is using 5s as cycle detection tire pressure, and each period can be with
Tire pressure data of the average as this 5s period are obtained according to multiple tire pressure is detected.Specifically, each detection cycle is detection
Four tire pressure data.
It wherein, further include carrying out periodical gas leakage detection after reporting tire pressure to change；
If continuous two detection cycles are gas leakage, principal fault is reported；If not continuous two detection cycles are
Gas leakage then returns to detection tire pressure variation.Specifically, the period of gas leakage detection is 5 seconds, four numbers are also detected using a cycle
According to data each random interval 20ms, 30ms, 50ms, 70ms or 110ms carry out gas leakage judgement further according to data.
As shown in Fig. 2, invention additionally discloses a kind of TPMS sensor devices, comprising:
Acceleration transducer, for obtaining vehicle acceleration；
Microprocessor, the vehicle acceleration that will acquire calculate vehicle running state；
Pressure sensor, for detecting tire pressure data.
Specifically, microprocessor can use the relationship of formula speed, acceleration and time, current vehicle is calculated
Speed.
As shown in figure 3, invention additionally discloses a kind of TPMS sensing systems, comprising:
TPMS sensor device of the invention；
Temperature sensor, for detecting tyre temperature, when tyre temperature is in the first preset temperature range, record is at this time
Tyre temperature, starting alarm；When tyre temperature is the second preset temperature lower than the tyre temperature of record, then cancel alarm；
Power supply, for providing electric power；
Battery voltage sensor, for detecting the voltage of the power supply；
Low frequency reception antenna and high frequency transmission antenna, for receiving the information of each sensor and sending information；
Alarm module for receiving information, and is alarmed.
Specifically, the microprocessor in TPMS is also used for treatment temperature data, power-supply battery pressure data and is to entire
System is controlled.Also there is low frequency signal transmission channel and high frequency signal transmission unit inside this system, be used for low frequency and high frequency
Signal transmission and conversion.
A kind of TPMS sensor sending method provided by the invention, apparatus and system, improve that sensor sends signal can
By property, achieve the effect that more rapidly with accurate warning reminding；Inflation, deflate reports in time, can satisfy user's primary demand；Also
Sensor battery level can be saved, sensor service life is extended, reduces maintenance cost.
In the claims, any reference symbol between parentheses should not be configured to limitations on claims.
Word "comprising" does not exclude the presence of element or step not listed in the claims.Word " one " located in front of the element or " one
It is a " do not exclude the presence of multiple such elements.The present invention can by means of include several different elements hardware and by
It is realized in properly programmed computer.In the unit claims listing several devices, several in these devices
It can be and be embodied by the same item of hardware.The use of word first, second, and third does not indicate any suitable
Sequence.These words can be construed to title.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (5)
1. a kind of TPMS sensor sending method characterized by comprising
A velocity amplitude is preset, if current vehicle speed is less than or equal to preset velocity amplitude, is determined as that theoretic vehicle is in
Stationary state；When current vehicle speed is greater than preset velocity amplitude, then it is determined as that theoretic vehicle is kept in motion；
Judge vehicle driving state；
When the car is at rest, judge that tire pressure changes, become according to different tire pressure variations using different tire pressures
Change reporting policy；It is wherein, described that reporting policy is changed using different tire pressures according to different tire pressure variations are as follows:
Tire pressure was detected for detection cycle with five seconds, when the variation of the tire pressure of continuous two detection cycles is less than 5kPa, adopts and does not use
Report tire pressure variation strategy；When the variation of the tire pressure of continuous two detection cycles is greater than 5kPa and is less than 30kPa, using periodical tire
Buckling reporting policy；When continuous two detection cycles tire pressure variation be greater than 30kPa when, using report immediately tire pressure change plan
Slightly.
2. the method as described in claim 1, which is characterized in that further include:
When automobile is kept in motion, reporting policy is changed using dynamic tire pressure.
3. the method as described in claim 1, which is characterized in that the periodicity tire pressure variation reporting policy is with every 3 minutes
For tire pressure variation of periodic report；It is described to report tire pressure variation immediately to report a tire pressure variation.
4. the method as described in claim 1, which is characterized in that described to detect tire pressure including repeatedly examining for detection cycle with five seconds
Tire pressure data are surveyed, detect tire pressure data random interval 20ms, 30ms, 50ms, 70ms or 110ms every time.
5. the method as described in any one of claim 1-4, which is characterized in that further include carrying out periodical gas leakage detection；
If continuous two detection cycles are gas leakage, principal fault is reported；If not continuous two detection cycles are gas leakage,
Then return to detection tire pressure variation.
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| CN201710415436.0A CN107264191B (en) | 2017-06-05 | 2017-06-05 | A kind of TPMS sensor sending method, apparatus and system |
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| CN201710415436.0A CN107264191B (en) | 2017-06-05 | 2017-06-05 | A kind of TPMS sensor sending method, apparatus and system |
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| CN107264191B true CN107264191B (en) | 2019-06-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108873780A (en) * | 2018-07-04 | 2018-11-23 | 李艳华 | A kind of preceding dress TPMS device for supporting automatic positioning function |
| CN111806167A (en) * | 2020-04-30 | 2020-10-23 | 北京嘀嘀无限科技发展有限公司 | Method, device and equipment for monitoring tire state based on T-BOX |
| CN112776541A (en) * | 2021-01-07 | 2021-05-11 | 重庆长安汽车股份有限公司 | Tire pressure monitoring system and method |
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| FR2780682A1 (en) * | 1998-07-06 | 2000-01-07 | Michelin Rech Tech | METHOD AND DEVICE FOR DETECTING A CONDITION OF A FLAT ROLLING OF A TIRE - INSERTS, WHEELS AND TIRES DESIGNED FOR THIS PROCESS |
| CN1286669C (en) * | 2003-09-03 | 2006-11-29 | 上海泰好电子科技有限公司 | Tyre monitoring display device |
| JP5609393B2 (en) * | 2010-08-02 | 2014-10-22 | 日産自動車株式会社 | Tire pressure monitoring device |
| US8700286B2 (en) * | 2011-12-21 | 2014-04-15 | Infineon Technologies Ag | Tire localization systems and methods in tire pressure monitoring systems |
| CN105252972B (en) * | 2015-11-18 | 2017-07-07 | 江阴市创新气门嘴有限公司 | Monitoring system for tyres of automobile and its low-power consumption alarm method |
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