CN203543542U - Electric automobile tire pressure monitoring device - Google Patents
Electric automobile tire pressure monitoring device Download PDFInfo
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- CN203543542U CN203543542U CN201320625613.5U CN201320625613U CN203543542U CN 203543542 U CN203543542 U CN 203543542U CN 201320625613 U CN201320625613 U CN 201320625613U CN 203543542 U CN203543542 U CN 203543542U
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- tire pressure
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- tilt angle
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Abstract
The utility model discloses an electric automobile tire pressure monitoring device and method and belongs to the technical field of electric automobiles. The electric automobile tire pressure monitoring device comprises a tire pressure display device, wherein biaxial inclination angle sensors are respectively arranged at the front end and the rear end of an automobile chassis and are connected to a signal processor; the signal processor comprises a database module and a data comparison processing module and transmits comparison data to the tire pressure display device. The device and the method which are disclosed by the utility model are simple and are low in cost; the device is easy to mount and is applied to electric automobile tire pressure monitoring to find and monitor the abnormity of tire pressure in time, so that the driving safety of an electric automobile is guaranteed.
Description
Technical field
The utility model relates to a kind of automotive tyre pressure monitoring device, and particularly a kind of electronlmobil device for monitoring tyre pressure, belongs to electric vehicle engineering field.
Background technology
Development along with electronlmobil, the safety performance of electronlmobil is also more and more outstanding in the process of moving, tire pressure is safely the important component part of electronlmobil safety, tire pressure monitoring is the effective means that guarantees tire safety, the system of monitoring tire pressure has two kinds at present, a kind of is indirect type tire pressure monitoring (Wheel-Speed Based TPMS, be called for short WSB), this system is that the wheel speed sensors by automobile ABS system carrys out the rotating speed difference between comparative tire, its principle of work is when the air pressure of certain tire reduces, the weight of vehicle can make this theoretical running radius of tire of taking turns diminish, cause other wheels of its revolution ratio fast, by the rotating speed difference between comparative tire, to reach the object that monitors tire pressure, this mode cost is relatively low, having equipped 4, to take turns ABS be that the automobile of 1 wheel speed sensors of each tire equipment only need be upgraded to software, but, indirect type device for monitoring tyre pressure does not have direct monitoring system accuracy rate high, it can not determine fault tire at all, and system calibration is extremely complicated, this system can cannot normally be worked in some cases, for example, when 2 of same axletree tire pressures are all low, cannot judge, another kind is direct-type tire pressure monitoring (Pressure-Sensor Based TPMS, be called for short PSB), this system is to utilize to be arranged on the air pressure that each pressure sensor of taking turns tyre cavity is directly measured tire, utilize wireless launcher that pressure information is sent to the system central receiver module from inside tires, then each tire pressure data are shown.When tire pressure is too low or leak gas, system meeting automatic alarm, although this mode is accurate, but system complex, cost is higher, is difficult to realize on general car, needs a kind of relatively cheap, highly sensitive, device for monitoring tyre pressure and method that accuracy is strong on electronlmobil.
Summary of the invention
For overcoming above defect of the prior art, the purpose of this utility model is for providing a kind of electronlmobil device for monitoring tyre pressure.
For realizing the purpose of this utility model, the technical scheme that the utility model adopts is: electronlmobil device for monitoring tyre pressure, comprise tyre pressure indicator, the front-end and back-end of car chassis are respectively arranged with double-shaft tilt angle sensor, double-shaft tilt angle sensor is attached to signal processor, in signal processor, arrange and include DBM and Data Comparison processing module, signal processor by contrast after data transmission to tyre pressure indicator, the double-shaft tilt angle sensor of described front end is arranged on the midway location at two front-wheel centers of front axle, the double-shaft tilt angle sensor of described rear end is arranged on the midway location at two trailing wheel centers of rear axle.
The useful technique effect of the electronlmobil device for monitoring tyre pressure that the utility model adopts is: the one, and simple in structure, with low cost, on hardware, only need to adopt double-shaft tilt angle sensor, signal processor, read out instrument, signal processor can adopt micro controller system or microprocessor, read out instrument can adopt the existing read out instrument of battery-driven car, so this application of installation can not increase too large cost on electronlmobil, the 2nd, monitoring sensitivity is high, in this device, double-shaft tilt angle sensor adopts high-precision dual-axis obliquity sensor, this sensor has good temperature characterisitic and long-time stability, its synthesis precision reaches 0.01 degree, its resolution can reach 0.001 degree, range is positive and negative 30 degree angles, various situations are sensitive in time through test monitoring, result is accurate, the 3rd, in the DBM of signal processor, considered that the various situations in electric automobile during traveling comprehensively judge, judging nicety rate is high, substantially do not produce wrong report.This apparatus structure is simple, with low cost, install easily, be applied on electronlmobil tire pressure monitoring and can find timely and monitor abnormal tyre pressure situation, to remind timely, to reduce energy loss-rate and the service wear of electronlmobil, be conducive to the timely maintaining of electronlmobil and life, ensure electronlmobil traffic safety.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model device.
Fig. 2 is the schematic diagram of the utility model signal acquisition process.
The specific embodiment
In order better to understand and to implement the technical solution of the utility model, at this, provide embodiment more of the present utility model, these embodiments, in order better to explain technical scheme described in the utility model, do not form any form restriction of the present utility model.
As accompanying drawing 1, shown in accompanying drawing 2, electronlmobil device for monitoring tyre pressure, comprise tyre pressure indicator, the front-end and back-end of car chassis are respectively arranged with double-shaft tilt angle sensor, double-shaft tilt angle sensor is attached to signal processor, in signal processor, arrange and include DBM and Data Comparison processing module, signal processor by contrast after data transmission to tyre pressure indicator, the double-shaft tilt angle sensor of described front end is arranged on the midway location at two front-wheel centers of front axle, the double-shaft tilt angle sensor of described rear end is arranged on the midway location at two trailing wheel centers of rear axle.
This device comprises by following steps and judges electronlmobil tire pressure:
(a) preset data library module in signal processor;
(b) two double-shaft tilt angle sensors by car chassis front and back end gather respectively inclination data and input to signal processor;
(c) the Data Comparison processing module in signal processor is judged after the inclination data of two double-shaft tilt angle sensor collections is compared with data default in DBM;
(d) will compare to determine result and export tyre pressure indicator to.
Further.In described Data Comparison processing module, default determination methods comprises following methods:
(1) the continuous wigwag motion of angle signal that former and later two double-shaft tilt angle sensors spread out of changes, and judges that automobile travels at potted road surface, does not export any under-voltage signal to read out instrument;
(2) at a collection signal in the cycle, former and later two double-shaft tilt angle sensors tilt to surpass 0.092 ° in same direction, at next signal, in the cycle, recover again normal, judge that car travels at tilted road surface, do not export any under-voltage signal to read out instrument;
(3) before and after, the angle of any one sensor of double-shaft tilt angle sensor is less than 0.092 °, and the angle of another sensor is greater than 0.092 °, judges the tire deflation of this sensor institute direction of tilt, exports corresponding tyre underpressure signal to read out instrument;
(4) obliquity sensor detects data and is shown as running car at uphill way, the numerical value of record when now Data Comparison processing module will be compared speed and the power of automobile in DBM again and climb in the past, under same uniform slope, speed, it is little that output power of motor ratio records regime values, judge all deficencys rather than really travel on uphill road of two, automobile back wheel tire, export the under-voltage signal of corresponding tire to read out instrument;
(5) obliquity sensor detects data and is shown as running car in downhill path, the numerical value of record when now Data Comparison processing module will be compared the speed of automobile in DBM and power and following climbing again, under same uniform slope, speed, power of motor is greater than the regime values of record, judge all deficencys rather than travel on downhill path of two front tyres of automobile, export corresponding display to read out instrument.
In figure, 1-1 is depicted as front end double-shaft tilt angle sensor, 1-2 is rear end double-shaft tilt angle sensor, 3 are depicted as signal processor, 4 are depicted as read out instrument, are respectively front-wheel a, front-wheel b shown in 5-1,5-2, are respectively trailing wheel a, trailing wheel b shown in 5-3,5-4,6 are depicted as sensor signal receiving device, sensor signal receiving device 6 also can be used as a module and is set directly in signal processor 3, and 3-1 is DBM, and 3-2 is Data Comparison processing module.The utility model is when installing and using, two twin shafts are arranged on respectively car chassis front and rear to obliquity sensor, in the utility model, adopt high-precision dual-axis obliquity sensor, have good temperature characterisitic and long-time stability, its synthesis precision reaches 0.01 degree; It is positive and negative 30 degree angles that its resolution can reach 0.001 tolerance journey, this obliquity sensor precision and range can reach the design's measurement parameter completely, the power supply of obliquity sensor is provided by signal processor, the power supply of signal processor is provided by electrokinetic cell, when automobile in motion, the axial sensor that is arranged on bottom of car can be transferred to signal processing module by collection signal, and signal processing module receives after signal, can be analyzed signal.Signal processing module is analyzed after judgement incoming signal, can on output module, show, prompting client inflates, maintains tire.
More specifically embodiment is set as follows:
First in DBM, carry out inclination angle and corresponding deficency situation default, set up the gradient, the output power of motor of electronlmobil under the various gradients, the relational database of speed in DBM, concrete inclination angle and deficency situation are preset as shown in table 1:
Wherein corresponding angle is with respect to the inclination angle angle of normal tire pressure when single tyre underpressure, if the continuous wigwag motion of the angle signal that former and later two double-shaft tilt angle sensors spread out of changes, judge that automobile travels at potted road surface, if at a collection signal in the cycle, former and later two double-shaft tilt angle sensors tilt over 0.092 ° in same direction, at next signal in the cycle, recover again normal, judge that car travels at tilted road surface, if the angle of front and back any one sensor of double-shaft tilt angle device is less than 0.092 °, and the angle of another sensor is greater than 0.092 °, judge the tire deflation of this sensor institute direction of tilt, if obliquity sensor detects data and is shown as running car at uphill way, the numerical value of record when now Data Comparison processing module will be compared speed and the power of automobile in DBM again and climb in the past, in same uniform slope, under speed, it is little that output power of motor ratio records regime values, judge all deficencys rather than really travel on uphill road of two, automobile back wheel tire, if obliquity sensor detects data and is shown as running car in downhill path, the numerical value of record when now Data Comparison processing module will be compared the speed of automobile in DBM and power and following climbing again, same uniform slope, under speed, power of motor is greater than the regime values of record, judge all deficencys rather than travel on downhill path of two front-wheels of automobile, judged result can output on read out instrument and show, remind in time client to inflate tire, maintenance.For guaranteeing the validity of collection signal, can preset the mode of collection signal, the selected useful signal comparison calculation cycle is 10s, for example: automobile present speed is 30km/h, once, acquisition time is spaced apart 100ms to every 0.83m collection signal, gather after 100 secondary data, microprocessor is to the data analysis, the screening that gather, as image data can not be judged tire whether deficency, Resurvey data.Until image data can accurately judge whether deficency of tire, whether affect driving safety.The utility model is simple in structure, with low cost, on hardware, only need to adopt double-shaft tilt angle sensor, signal processor, read out instrument, signal processor can adopt micro controller system or microprocessor, read out instrument can adopt the existing read out instrument of battery-driven car, so this application of installation can not increase too large cost on electronlmobil, the utility model monitoring sensitivity is high, in this device, double-shaft tilt angle sensor adopts high-precision dual-axis obliquity sensor, this sensor has good temperature characterisitic and long-time stability, its synthesis precision reaches 0.01 degree, its resolution can reach 0.001 degree, range is positive and negative 30 degree angles, various situations are sensitive in time through test monitoring, result is accurate, the utility model has considered that in the DBM of signal processor the various situations in electric automobile during traveling comprehensively judge, judging nicety rate is high, substantially do not produce wrong report.This apparatus structure is simple, with low cost, install easily, be applied on electronlmobil tire pressure monitoring and can find timely and monitor tire pressure condition, to remind timely, to reduce energy loss-rate and the service wear of electronlmobil, be conducive to the timely maintaining of electronlmobil and life, guarantee driving safety.
After describing above various specific embodiment of the present utility model in detail, those of ordinary skill in the art should be well understood to, various common practise according to this area, according to thinking of the present utility model, can carry out various equivalent variations, be equal to and replace or simply revise, these all should belong to the scope of technical solutions of the utility model.
Claims (2)
1. electronlmobil device for monitoring tyre pressure, comprise tyre pressure indicator, it is characterized in that: the front-end and back-end of car chassis are respectively arranged with double-shaft tilt angle sensor, double-shaft tilt angle sensor is attached to signal processor, in signal processor, arrange and include DBM and Data Comparison processing module, signal processor by the data transmission after contrast to tyre pressure indicator.
2. electronlmobil device for monitoring tyre pressure according to claim 1, it is characterized in that: the double-shaft tilt angle sensor of described front end is arranged on the midway location at two front-wheel centers of front axle, the double-shaft tilt angle sensor of described rear end is arranged on the midway location at two trailing wheel centers of rear axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625613.5U CN203543542U (en) | 2013-10-11 | 2013-10-11 | Electric automobile tire pressure monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625613.5U CN203543542U (en) | 2013-10-11 | 2013-10-11 | Electric automobile tire pressure monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN203543542U true CN203543542U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320625613.5U Expired - Fee Related CN203543542U (en) | 2013-10-11 | 2013-10-11 | Electric automobile tire pressure monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890457A (en) * | 2015-06-24 | 2015-09-09 | 中山菲柯特电子电器有限公司 | Tire pressure monitoring system and tire pressure monitoring method capable of achieving automatic angle adjustment |
-
2013
- 2013-10-11 CN CN201320625613.5U patent/CN203543542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890457A (en) * | 2015-06-24 | 2015-09-09 | 中山菲柯特电子电器有限公司 | Tire pressure monitoring system and tire pressure monitoring method capable of achieving automatic angle adjustment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141011 |
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| EXPY | Termination of patent right or utility model |