CN201824807U - Tire pressure monitoring alarm device - Google Patents
Tire pressure monitoring alarm device Download PDFInfo
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- CN201824807U CN201824807U CN201020539998XU CN201020539998U CN201824807U CN 201824807 U CN201824807 U CN 201824807U CN 201020539998X U CN201020539998X U CN 201020539998XU CN 201020539998 U CN201020539998 U CN 201020539998U CN 201824807 U CN201824807 U CN 201824807U
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- tire pressure
- sensor
- pressure monitoring
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- tire
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- 230000001133 acceleration Effects 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
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Abstract
The utility model aims to provide a tire pressure monitoring alarm device, which is low in cost and accurate in monitoring. The tire pressure monitoring alarm device comprises a control unit, a vehicle speed sensor, a wheel axle rotation speed sensor and an instrument, wherein the vehicle speed sensor is used for providing vehicle speed signals, the wheel axle rotation speed sensor is used for providing wheel angular speed signals, the instrument is used for warning, and the vehicle speed sensor, the wheel axle rotation speed sensor and the instrument are respectively connected with the control unit. The tire pressure monitoring alarm device utilizes signals of vehicle speed, wheel angular speed, lateral acceleration, yaw velocity, engine torque, environmental temperature and the like to acquire air pressure of tires, the signals can be acquired by the original different sensors of a vehicle, a tire pressure sensor and a TPMS (tire pressure monitor system) controller can be omitted, and accordingly cost is reduced greatly, affection of external environment onto signal transmission is simultaneously avoided, alarm accuracy rate is increased, and the tire pressure monitoring alarm device can be popularized favorably.
Description
Technical field
The utility model belongs to technical field of automotive electronics, specially refers to the tire pressure monitoring warning device of automobile.
Background technology
The safety performance of automobile receives the concern of customer and producer always, along with development of science and technology, a large amount of up-to-date technologys such as auto-safety mechanism such as anti-skid brake system (ABS), driving anti-skid device (ASR), electronic stability program of automobile (ESP), safety air bag (SRS) and automatic collision avoidance system all are widely used in the automobile product.In addition, be that the air pressure of automobile tire monitoring system (TPMS) of representative and tire pressure detection technique are also popularized gradually with the U.S. NPP-301 of NOVASENSOR company high stable absolute pressure sensor.But above-mentioned TPMS utilizes tyre pressure sensor to come the pressure and temperature of perception vehicle, and by radioing to the TPMS controller, the TPMS controller sends to instrument with result of calculation then, by the instrument display alarm information or send alarm sound.The cost of tyre pressure sensor and TPMS controller is higher, and the quantity of tyre pressure sensor will can bring bigger cost pressure to automobile vendor like this corresponding to the quantity of tire, thereby has influenced popularizing of tire pressure monitoring system.In addition, complicated external environment condition also can impact the signal transmission of tyre pressure sensor, has influenced the accuracy rate of reporting to the police then.
The utility model content
The purpose of this utility model is to propose low, the accurate monitoring tire pressure monitoring warning device of a kind of cost.
Tire pressure monitoring warning device of the present utility model comprises control unit, is used to provide the car speed sensor of vehicle speed signal, is used to provide the wheel shaft speed transducer of angular speed of wheel signal and the instrument that is used to warn, and described car speed sensor, wheel shaft speed transducer, instrument link to each other with control unit respectively.
The control unit of tire pressure monitoring warning device of the present utility model goes out tire radius (vehicle speed signal is tire radius divided by the angular speed of wheel signal) by vehicle speed signal and angular speed of wheel calculated signals, then by tire radius under the contrast standard inflated condition and the tire radius that calculates, whether the atmospheric pressure state that can tentatively judge tire is normal, because the air pressure difference in the tire, the radius of tire is also just different, in general air pressure is big more, and theoretical running radius of tire is big more.After the air pressure in the tire was more than preassigned, control unit was warned to chaufeur by instrument.For avoiding the influence of road surface and driving situation to measuring, under the ground-surface situation that the standard that may be selected in is straight the radius of tire is measured, to reduce the influence of external environment, improve survey precision.
Behind the vehicle input redirect, by calculating the fast and slow of fore suspension and rear suspension system (comprising tire) response, can determine the frequency of tire, the air pressure of tire is excessive or low excessively, will cause under the same input corner, lateral acceleration and yaw velocity all are different.Consider above-mentioned factor, tire pressure monitoring warning device of the present utility model comprises also and is used to the lateral acceleration sensor that the yaw-rate sensor of yaw velocity signal is provided and/or is used to provide lateral acceleration signal that described yaw-rate sensor and/or lateral acceleration sensor link to each other with control unit.
The driving situation also can impact the precision of measuring, for example say that automobile is in and slide or during acceleration mode, the frequency of its tire is also different, consider above-mentioned factor, tire pressure monitoring warning device of the present utility model also comprises the engine torque sensor that is used to provide engine torque signal, and described engine torque sensor links to each other with control unit.
The variation meeting of ambient temperature exerts an influence to the hardness of tire, and the frequency of tire is relevant with hardness, and ambient temperature is low, and tire is hard, and frequency is low, opposite ambient temperature height, and tire is soft, the frequency height.Consider above-mentioned factor, tire pressure monitoring warning device of the present utility model also comprises the temperature sensor that is used to provide ambient temperature signal, and described temperature sensor links to each other with control unit.
Tire pressure monitoring warning device of the present utility model utilizes signals such as the speed of a motor vehicle, angular speed of wheel, lateral acceleration, yaw velocity, engine torque and ambient temperature to know the air pressure of tire, and above-mentioned signal can be obtained by the original various sensors of automobile, can save tyre pressure sensor and TPMS controller like this, reduced cost greatly, avoided the influence of external environment condition simultaneously to the signal transmission, improve the accuracy rate of reporting to the police, helped popularizing of tire pressure monitoring warning device.
Description of drawings
Fig. 1 is the principle schematic of tire pressure monitoring warning device of the present utility model.
The specific embodiment
Describe the utility model in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
As shown in Figure 1, the tire pressure monitoring warning device of present embodiment comprises control unit 1, be used to provide the car speed sensor 4 of vehicle speed signal, be used to provide the wheel shaft speed transducer 5 of angular speed of wheel signal, be used to provide the yaw-rate sensor 6 of yaw velocity signal, be used to provide the lateral acceleration sensor 7 of lateral acceleration signal, be used to provide the engine torque sensor 8 of engine torque signal, be used to provide the temperature sensor 3 of ambient temperature signal and the instrument 2 that is used to warn, described car speed sensor 4, wheel shaft speed transducer 5, yaw-rate sensor 6, lateral acceleration sensor 7, engine torque sensor 8, temperature sensor 3 links to each other with control unit 1 respectively with instrument 2.
The control unit 1 of above-mentioned tire pressure monitoring warning device goes out tire radius by vehicle speed signal and angular speed of wheel calculated signals, then by tire radius under the contrast standard state and the tire radius that calculates, whether the atmospheric pressure state that can tentatively judge tire is normal, after the air pressure in the tire was more than preassigned, control unit was warned to chaufeur by instrument.And yaw-rate sensor 6, lateral acceleration sensor 7, engine torque sensor 8, temperature sensor 3 can reduce the influence to survey precision of driving condition and external environment.
Above-mentioned car speed sensor 4, wheel shaft speed transducer 5, yaw-rate sensor 6, lateral acceleration sensor 7 generally all are integrated in the ESP system, tire pressure monitoring warning device than traditional tyre pressure sensor and TPMS controller composition, significantly therefore cost-cutting helps popularizing of tire pressure monitoring warning device.
Claims (5)
1. tire pressure monitoring warning device, it is characterized in that comprising control unit, be used to provide vehicle speed signal car speed sensor, be used to provide the wheel shaft speed transducer of angular speed of wheel signal and the instrument that is used to warn, described car speed sensor, wheel shaft speed transducer, instrument link to each other with control unit respectively.
2. tire pressure monitoring warning device according to claim 1 is characterized in that also comprising the yaw-rate sensor that is used to provide the yaw velocity signal, and described yaw-rate sensor links to each other with control unit.
3. tire pressure monitoring warning device according to claim 1 is characterized in that also comprising the lateral acceleration sensor that is used to provide lateral acceleration signal, and described lateral acceleration sensor links to each other with control unit.
4. tire pressure monitoring warning device according to claim 1 is characterized in that also comprising the engine torque sensor that is used to provide engine torque signal, and described engine torque sensor links to each other with control unit.
5. tire pressure monitoring warning device according to claim 1 is characterized in that also comprising the temperature sensor that is used to provide ambient temperature signal, and described temperature sensor links to each other with control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020539998XU CN201824807U (en) | 2010-09-20 | 2010-09-20 | Tire pressure monitoring alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020539998XU CN201824807U (en) | 2010-09-20 | 2010-09-20 | Tire pressure monitoring alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824807U true CN201824807U (en) | 2011-05-11 |
Family
ID=43963361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020539998XU Expired - Lifetime CN201824807U (en) | 2010-09-20 | 2010-09-20 | Tire pressure monitoring alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824807U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867131A (en) * | 2016-09-27 | 2018-04-03 | 深圳联友科技有限公司 | A kind of vehicle safety monitoring method and system |
| CN108020239A (en) * | 2016-11-03 | 2018-05-11 | 比亚迪股份有限公司 | A kind of computational methods of vehicle driving mileage, computing device and automobile |
| WO2018177068A1 (en) * | 2017-03-29 | 2018-10-04 | 比亚迪股份有限公司 | Train, and method and device for measuring speed thereof |
| CN110481251A (en) * | 2019-08-30 | 2019-11-22 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of tire pressure monitoring system and method |
-
2010
- 2010-09-20 CN CN201020539998XU patent/CN201824807U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867131A (en) * | 2016-09-27 | 2018-04-03 | 深圳联友科技有限公司 | A kind of vehicle safety monitoring method and system |
| CN108020239A (en) * | 2016-11-03 | 2018-05-11 | 比亚迪股份有限公司 | A kind of computational methods of vehicle driving mileage, computing device and automobile |
| WO2018177068A1 (en) * | 2017-03-29 | 2018-10-04 | 比亚迪股份有限公司 | Train, and method and device for measuring speed thereof |
| CN108663533A (en) * | 2017-03-29 | 2018-10-16 | 比亚迪股份有限公司 | Train and its speed-measuring method and device |
| CN110481251A (en) * | 2019-08-30 | 2019-11-22 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of tire pressure monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |