CN103085612A - Tire low pressure alarming device and method - Google Patents
Tire low pressure alarming device and method Download PDFInfo
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- CN103085612A CN103085612A CN2011103386414A CN201110338641A CN103085612A CN 103085612 A CN103085612 A CN 103085612A CN 2011103386414 A CN2011103386414 A CN 2011103386414A CN 201110338641 A CN201110338641 A CN 201110338641A CN 103085612 A CN103085612 A CN 103085612A
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Abstract
The invention discloses a tire low pressure alarming device and a tire low pressure alarming method. According to a scheme provided by the invention, the tire low pressure alarming device provided by the invention is characterized in comprising a plurality of pressure sensors, an ECU, and a display section. The pressure sensors are respectively arranged on every one of a plurality of tires, and are used for determining the pressure of each tire and transmitting corresponding signals of the pressures. The ECU is used for comparing the signal intensities (RF Power, RSSI) with preset standards, and is used for identifying that whether the pressure of front tires or the pressure of back tires is the pressure corresponding to the signals; if the pressure is from the front tire, the pressure is compared with a first standard pressure; and if the pressure is from the back tire, the pressure is compared with a second standard pressure, such that whether a tire corresponding to the signals is in a low-pressure state is determined. The display section is used for providing alarms that the front tire or the back tire is in a low-pressure state, under the control of the ECU according to the determination result.
Description
Technical field
The present invention relates to TPMS (Tire Pressure Monitoring System: system for monitoring pressure in tyre), more specifically, relate to and to utilize TPMS to produce low pressure of tire alarm device and the method for carrying out alarm to the low pressure of tire.
Background technology
Recently, system for monitoring pressure in tyre (below, be called " TPMS ") be useful in automobile as indispensable system.
Existing TPMS owing to being at least one tire generation low pressure in a plurality of tires, just produces the mode of carrying out alarm to low pressure, so for the low pressure of identifying in a plurality of tires produces tire, need to confirm one by one all tire.
Still more, in recent years, automobile is not only domestic in Korea S, what comprise US and European is also carrying out foundry production (OEM) abroad, with regard to Europe, because the variety classes according to vehicle requires the applicable different pressure reference of front and back tire, so the plan that also need tackle.
Therefore, in the past, used by set up LFi (Low Frequency Initiator: low-frequency trigger) module, distinguish the mode of position of the TPMS sensor of transmitted signal, but the problem of this mode because using the LFi module to exist price significantly to rise.
Summary of the invention
The present invention proposes under technical background as described above, and its purpose is, provides a kind of and can for the base pressure of the low pressure that judges tire, differently be applicable to respectively low pressure of tire alarm device and the method for front and back tire.
Another object of the present invention is to, a kind of intensity that can utilize the signal corresponding with the pressure of tire is provided, distinguishing the tire that is in low-pressure state is the place ahead tire or low pressure of tire alarm device and the method for rear tire.
The low pressure of tire alarm device that a scheme of the present invention is related, it is characterized in that, comprising: a plurality of pressure sensors, these pressure sensors are assemblied in respectively each tire of a plurality of tires, measure respectively the pressure of each tire of above-mentioned a plurality of tires, and the transmission signal corresponding with above-mentioned pressure; ECU, this ECU is with intensity (the RF Power of above-mentioned signal, RSSI) compare with predefined benchmark, identifying the pressure corresponding with above-mentioned signal is the pressure of the place ahead tire or the pressure of rear tire, if the pressure of above-mentioned the place ahead tire compares with the first base pressure, if the pressure of above-mentioned rear tire, compare with the second base pressure, judge whether the tire corresponding with above-mentioned signal is low-pressure state; And display part, this display part is according to the control of carrying out according to judged result of above-mentioned ECU, and making above-mentioned the place ahead tire or rear tire is the alarm of low-pressure state.
ECU (the Electronic Control Unit: low pressure of tire alarming method electronic control unit) that another program of the present invention is related, it is characterized in that, comprise: each pressure sensor from each tire that is assemblied in a plurality of tires receives the step of the signal corresponding with the pressure of the above-mentioned tire that assembles; The intensity (RF Power, RSSI) of above-mentioned signal and predefined benchmark are compared, identify pressure that the pressure corresponding with above-mentioned signal is the place ahead tire or the step of the pressure of rear tire; If the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire, be confirmed whether to be below the first base pressure, if the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire, be confirmed whether to be below the second base pressure, judge whether above-mentioned the place ahead tire or above-mentioned rear tire are the step of low-pressure state; And if be judged as above-mentioned low-pressure state, making above-mentioned the place ahead tire or rear tire is the step of the alarm of low-pressure state.
According to the present invention, can utilize from the intensity of the signal of a plurality of pressure sensors transmissions, the low pressure of the place ahead tire and rear tire is distinguished alarm, thereby have the effect of the convenience that can improve tire changing.
In addition, the present invention can set up the judgement signal strength in existing TPMS module logical gate/circuit easily is suitable for, so compare Cost reduction significantly with the TPMS of the existing LFi of utilization module.
Description of drawings
Fig. 1 is the constructional drawing of the related low pressure of tire alarm device of embodiments of the invention.
Fig. 2 is the figure of the related display part of embodiments of the invention.
Fig. 3 is the diagram of circuit of the related low pressure of tire alarming method of embodiments of the invention.
Fig. 4 is the chart of received signal strength (RSSI) that a plurality of pressure sensors are shown.
(description of reference numerals)
110: pressure sensor; 120:ECU; 130: display part.
The specific embodiment
Advantage of the present invention and feature also have in order to realize their method, as long as the reference embodiment that is described in detail together with accompanying drawing hereinafter can obtain clear and definite.Yet, the present invention is not limited to following the disclosed embodiments, also can be realized by mutual different various forms, the present embodiment is just for full disclosure the present invention, and in order to inform that intactly category of the present invention provides for those skilled in the art, the present invention is only defined by the category of claim.On the other hand, term as used in this specification just is used for illustrating not limiting the present invention by various embodiment.In this manual, if singulative do not mention especially in the text, also comprise plural form." the comprising (comprises) " of using in specification sheets and/or " comprising ... at interior (comprising) ", do not get rid of mentioned structural constituent, step, action and/or element and have or set up more than one other structural constituent, step, action and/or element.
Referring now to accompanying drawing, to a preferred embodiment of the present invention will be described in detail.Fig. 1 is the constructional drawing of the related low pressure of tire alarm device of embodiments of the invention.
As shown in Figure 1, the related low pressure of tire alarm device 10 of embodiments of the invention comprises a plurality of pressure sensors 110, ECU120 and display part 130.
A plurality of pressure sensors 110 are assemblied in respectively each tire of a plurality of tires, the pressure of each tire of a plurality of tires is measured respectively, and sent the signal corresponding with the pressure that determines.
ECU120 comprises the determination units such as the circuit of intensity of measured signal or logical gate (Logic).
ECU120 is when at least one from a plurality of pressure sensors 110 receives the signal corresponding with pressure, utilize intensity (the RF Power of determination unit acknowledgment signal, RSSI), the identification pressure corresponding with this signal is the pressure of the place ahead tire or the pressure of rear tire.
For example, in the situation that comparing the rear tire, determination unit is positioned at the position of tyre side more on the front, if the intensity of signal is more than the first benchmark, ECU120 makes the such identification of pressure that the pressure corresponding with signal is the place ahead tire, if less than the first benchmark, to make the pressure corresponding with signal be the such identification of rear tire to ECU120.
On the contrary, in the situation that comparing the place ahead tire, determination unit is positioned at the position of more leaning on the rear tyre side, if the intensity of signal is more than the first benchmark, to make the pressure corresponding with signal be the such identification of rear tire to ECU120, if less than the first benchmark, to make the pressure corresponding with signal be the such identification of the place ahead tire to ECU120.
The ECU120 pair of pressure corresponding with each signal and base pressure compare, if the pressure corresponding with each signal below base pressure, the judgement tire corresponding with signal is low-pressure state.
At this moment, if the pressure of ECU120 the place ahead tire compares with the first base pressure, if the pressure of rear tire compares with the second base pressure, thereby the low-pressure state that can judge the place ahead tire and rear tire whether.Wherein, comprising the base pressure of the first and second base pressure, can be both according to the place ahead tire of experiment decision and the suitable pressure of rear tire, also can determine respectively according to different types of vehicle.
ECU120 making the place ahead tire or rear tire when being the judgement of low-pressure state, is low-pressure state by display part 130 alarm the place ahead tires or rear tire.
Below, with reference to Fig. 3, the low pressure of tire alarming method related to embodiments of the invention describes.Fig. 3 is the diagram of circuit of the related low pressure of tire alarming method of embodiments of the invention.
With reference to Fig. 3, ECU120 receives the signal (S310) corresponding with the pressure of each tire from being assemblied in each pressure sensor 110 of each tire.
Then, ECU120 utilizes the intensity of the determination unit measured signals such as circuit or logical gate, and compares with predefined benchmark, identifies pressure that the pressure corresponding with signal is the place ahead tire or the pressure (S320) of rear tire.
For example, if the intensity of signal is more than the first benchmark, ECU120 makes the such identification of pressure that the pressure corresponding with signal is the place ahead tire, if less than the first benchmark, ECU120 makes the such identification of pressure that the pressure corresponding with signal is the rear tire.
If the pressure of ECU120 the place ahead tire compares with the first base pressure, if the pressure of rear tire compares with the second base pressure, thereby judge whether the place ahead tire or rear tire are low-pressure state (S330).Wherein, base pressure can be according to the place ahead tire of experiment decision and the suitable pressure of rear tire, can be different according to car type.
ECU120 carries out alarm (S340) to the low-pressure state of the place ahead tire or rear tire when judging the place ahead tire or rear tire and be low-pressure state.
Like this, the present invention can utilize from the intensity of the signal of a plurality of pressure sensors transmissions, and the low pressure of the place ahead tire and rear tire is distinguished alarm, has the effect of the convenience that can improve tire changing.
In addition, the logical gate/circuit that can set up the judgement signal strength due to the present invention in existing TPMS module easily is suitable for, so compare Cost reduction significantly with the TPMS of the existing LFi of utilization module.
Above, with reference to accompanying drawing, structure of the present invention is had been described in detail, but this is illustration, for those skilled in the art, also can make various distortion and change in the scope of technological thought of the present invention, this is apparent.
Namely, in the above-described embodiment, for example understand 10 situations of the front and back tire being distinguished alarm of low pressure of tire alarm device, but as shown in the below chart of Fig. 4, intensity due to the signal that sends from each pressure sensor, left and right, the place ahead tire and left and right, rear tire are according to the diverse location of ECU120 and may there be some differences, so ECU120 can distinguish left and right, the place ahead tire and left and right, rear tire according to the intensity of signal, and being suitable for the low-pressure state that corresponding with it base pressure judges tire, this is apparent.
Therefore, protection scope of the present invention is not limited to the above embodiments, but should be determined by the scope that claim is put down in writing.
Claims (8)
1. a low pressure of tire alarm device, is characterized in that, comprising:
A plurality of pressure sensors, these pressure sensors are assemblied in respectively each tire of a plurality of tires, measure respectively the pressure of each tire of above-mentioned a plurality of tires, and the transmission signal corresponding with above-mentioned pressure;
ECU, this ECU compares intensity and the predefined benchmark of above-mentioned signal, identifying the pressure corresponding with above-mentioned signal is the pressure of the place ahead tire or the pressure of rear tire, if the pressure of above-mentioned the place ahead tire, compare with the first base pressure, if the pressure of above-mentioned rear tire compares with the second base pressure, judge whether the tire corresponding with above-mentioned signal is low-pressure state; And
Display part, this display part is according to the control of carrying out according to judged result of above-mentioned ECU, and making above-mentioned the place ahead tire or rear tire is the alarm of low-pressure state.
2. low pressure of tire alarm device according to claim 1, is characterized in that, applicable above-mentioned the first base pressure and above-mentioned the second base pressure that determines by experiment according to different car types of above-mentioned ECU.
3. low pressure of tire alarm device according to claim 1, is characterized in that, above-mentioned ECU comprises circuit or the logical gate of the intensity of measuring above-mentioned signal.
4. low pressure of tire alarm device according to claim 1, is characterized in that,
Above-mentioned ECU is positioned in the situation that compare above-mentioned rear tire the position of more leaning on above-mentioned the place ahead tyre side, if the intensity of above-mentioned signal is more than the first benchmark, make the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire, if the intensity of above-mentioned signal is less than above-mentioned the first benchmark, make the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire
Above-mentioned ECU is positioned in the situation that compare above-mentioned the place ahead tire the position of more leaning on above-mentioned rear tire, if the intensity of above-mentioned signal is more than the first benchmark, make the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire, if the intensity of above-mentioned signal less than above-mentioned the first benchmark, is made the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire.
5. low pressure of tire alarming method, the method is the low pressure of tire alarming method of ECU, it is characterized in that, comprises the following steps:
Each pressure sensor from each tire that is assemblied in a plurality of tires receives the step of the signal corresponding with the pressure of the above-mentioned tire that assembles;
Intensity and the predefined benchmark of above-mentioned signal are compared, identify pressure that the pressure corresponding with above-mentioned signal is the place ahead tire or the step of the pressure of rear tire;
If the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire, be confirmed whether to be below the first base pressure, if the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire, be confirmed whether to be below the second base pressure, judge whether above-mentioned the place ahead tire or above-mentioned rear tire are the step of low-pressure state; And
If be judged as above-mentioned low-pressure state, making above-mentioned the place ahead tire or rear tire is the step of the alarm of low-pressure state.
6. low pressure of tire alarming method according to claim 5, is characterized in that, the step of above-mentioned identification comprises the step of utilizing circuit or logical gate to measure the intensity of above-mentioned signal.
7. low pressure of tire alarming method according to claim 5, is characterized in that,
The step of above-mentioned identification comprises:
Above-mentioned ECU is positioned in the situation that compare above-mentioned rear tire the position of more leaning on above-mentioned the place ahead tyre side, if the intensity of above-mentioned signal is more than the first benchmark, make the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire, if the intensity of above-mentioned signal less than above-mentioned the first benchmark, is made the step of identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire; And
Above-mentioned ECU is positioned in the situation that compare above-mentioned the place ahead tire the position of more leaning on above-mentioned rear tire, if the intensity of above-mentioned signal is more than the first benchmark, make the identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned rear tire, if the intensity of above-mentioned signal less than above-mentioned the first benchmark, is made the step of identification that the pressure corresponding with above-mentioned signal is the pressure of above-mentioned the place ahead tire.
8. low pressure of tire alarming method according to claim 5, is characterized in that, the step of above-mentioned judgement comprises applicable above-mentioned the first base pressure that determines by experiment according to different car types and the step of above-mentioned the second base pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110338641.4A CN103085612B (en) | 2011-10-31 | 2011-10-31 | Tire low pressure alarming device and method |
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| CN201110338641.4A CN103085612B (en) | 2011-10-31 | 2011-10-31 | Tire low pressure alarming device and method |
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| CN103085612A true CN103085612A (en) | 2013-05-08 |
| CN103085612B CN103085612B (en) | 2015-07-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136864A (en) * | 2015-10-20 | 2018-06-08 | 株式会社自动网络技术研究所 | Tire air pressure monitoring system, detection device and monitoring arrangement |
| CN112512840A (en) * | 2018-07-19 | 2021-03-16 | 北美日产公司 | Vehicle tire pressure monitoring interface |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030164758A1 (en) * | 2002-03-01 | 2003-09-04 | Lear Corporation | System and method for tire pressure monitoring providing automatic tire location recognition |
| US20030197603A1 (en) * | 2002-04-18 | 2003-10-23 | Stewart William David | Determination of wheel sensor position using a wireless solution |
| US20050187667A1 (en) * | 2004-02-19 | 2005-08-25 | Johnson Controls Technology Company | System and method for identifying tire position on a vehicle |
| US20050253696A1 (en) * | 2004-05-13 | 2005-11-17 | Denso Corporation | Tire inflation pressure sensing apparatus with function of detecting tire location |
| US20060290484A1 (en) * | 2005-06-22 | 2006-12-28 | International Business Machines Corporation | Method and system for locating tires using RFID |
| CN101428540A (en) * | 2007-09-12 | 2009-05-13 | 李尔公司 | Automotive tire pressure monitoring system |
-
2011
- 2011-10-31 CN CN201110338641.4A patent/CN103085612B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030164758A1 (en) * | 2002-03-01 | 2003-09-04 | Lear Corporation | System and method for tire pressure monitoring providing automatic tire location recognition |
| US20030197603A1 (en) * | 2002-04-18 | 2003-10-23 | Stewart William David | Determination of wheel sensor position using a wireless solution |
| US20050187667A1 (en) * | 2004-02-19 | 2005-08-25 | Johnson Controls Technology Company | System and method for identifying tire position on a vehicle |
| US20050253696A1 (en) * | 2004-05-13 | 2005-11-17 | Denso Corporation | Tire inflation pressure sensing apparatus with function of detecting tire location |
| US20060290484A1 (en) * | 2005-06-22 | 2006-12-28 | International Business Machines Corporation | Method and system for locating tires using RFID |
| CN101428540A (en) * | 2007-09-12 | 2009-05-13 | 李尔公司 | Automotive tire pressure monitoring system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136864A (en) * | 2015-10-20 | 2018-06-08 | 株式会社自动网络技术研究所 | Tire air pressure monitoring system, detection device and monitoring arrangement |
| CN108136864B (en) * | 2015-10-20 | 2020-06-05 | 株式会社自动网络技术研究所 | Tire air pressure monitoring system, detection device, and monitoring device |
| CN112512840A (en) * | 2018-07-19 | 2021-03-16 | 北美日产公司 | Vehicle tire pressure monitoring interface |
| CN112512840B (en) * | 2018-07-19 | 2023-03-14 | 北美日产公司 | Vehicle tire pressure monitoring interface |
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