CN106143003A - The tire pressure monitoring system being automatically adjusted and its implementation - Google Patents
The tire pressure monitoring system being automatically adjusted and its implementation Download PDFInfo
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- CN106143003A CN106143003A CN201510181469.4A CN201510181469A CN106143003A CN 106143003 A CN106143003 A CN 106143003A CN 201510181469 A CN201510181469 A CN 201510181469A CN 106143003 A CN106143003 A CN 106143003A
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- tire
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- tire pressure
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Abstract
This application discloses a kind of tire pressure monitoring system being automatically adjusted, including: multiple pressure transducers, for measuring the air pressure of each tire of vehicle and being uploaded to controller；Multiple speed probes, for measuring the rotating speed of each tire of vehicle and being uploaded to controller；Controller, receives each tire pressure, each tire rotational speed, speed, calculates the angle needing to correct, and the steering controlling vehicle carries out angle correction.The application can be corrected by steering when coaxial wheels tire pressure difference is normal, makes vehicle be maintained at predetermined track in the process of moving, it is ensured that traffic safety automatically.
Description
Technical field
The application relates to the TPMS (tire pressure monitoring system, tire pressure monitoring system) of a kind of vehicle.
Background technology
TPMS is for the monitoring each tire pressure of vehicle in real time, and sends alarm signal when any abnormality in tire air-pressure.According to
Realize principle different, TPMS be divided into direct-type (direct TPMS, be abbreviated as dTPMS) and indirect type (indirect TPMS,
It is abbreviated as iTPMS) two classes.DTPMS is that multiple pressure transducers are separately mounted to each inside tires or outside, often
Individual pressure transducer is for measuring and report the air pressure of a tire, and each tire pressure is obtained by receptor and determines whether
Tire pressure occurs abnormal.ITPMS does not use pressure transducer directly to measure each tire pressure, but uses other to believe
Number infer tire pressure.Such as, iTPMS uses speed probe to detect each vehicle wheel rotational speed, if a certain vehicle wheel rotational speed shows
Work is different from other wheels, then infer the abnormal tyre pressure of this wheel.
Existing TPMS has the drawback that
One, alarming threshold value scope generally arranges wider, causes vehicle tyre pressure can change in a big way, impact row
Car safety.Assuming that tire pressure normal value is 2.5bar, alarming threshold value scope is typically set to less than 1.8bar or more than 3.2bar,
Then tire pressure between 1.8bar to 3.2bar all without cause report to the police, and if on same vehicle the tire pressure of different kinds of tyre poor
Different still suffer from more greatly potential safety hazard.
Its two, TPMS only sends alarm signal, and does not carry out any regulation action to guarantee traffic safety.Human pilot
Can only manually adjust abnormal tire pressure after the warning receiving TPMS makes it recover normal.If human pilot is ignored
The warning of TPMS and continue to travel, then there is bigger security risk.
Referring to Fig. 1 a, the front axle (or hind axle) of vehicle is connected to two front-wheels (or trailing wheel) and controls theirs
Rotate.When two coaxial tire pressure keep consistent, vehicle body keeps level.Refer to Fig. 1 b, when coaxial two
When tire pressure is inconsistent, vehicle body no longer keeps level but downward-sloping at the tire location that tire pressure is relatively low, and Fig. 1 b adopts
With the technique of painting more exaggerated.Now, even if the steering of vehicle keeps direction of advance not carry out any turning to, car
Actual travel direction also can be partial to the tire direction that tire pressure is relatively low.Additionally, the rotating speed of the relatively low tire of tire pressure can faster,
This accelerates the tire wear that tire pressure is relatively low, and may affect traffic safety.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of TPMS, can be automatic when coaxial tire pressure is inconsistent
The steering of regulation vehicle, so that the travel direction of vehicle will not deviate due to abnormal tyre pressure.
For solving above-mentioned technical problem, the tire pressure monitoring system that the application is automatically adjusted includes:
Multiple pressure transducers, for measuring the air pressure of each tire of vehicle and being uploaded to controller；
Multiple speed probes, for measuring the rotating speed of each tire of vehicle and being uploaded to controller；
Controller, receives each tire pressure, each tire rotational speed, speed, calculates the angle needing to correct, and controls
The steering of vehicle processed carries out angle correction.
The implementation method of the tire pressure monitoring system that the application is automatically adjusted comprises the steps:
1st step, controller receives each tire pressure, each tire rotational speed, speed；
2nd step, when coaxial tire pressure difference more than threshold value time, controller according to each tire pressure, each tire rotational speed,
Speed, obtains the angle needing to correct；
3rd step, controller controls the steering of vehicle and carries out angle correction.
Tire pressure monitoring system and its implementation that the application is automatically adjusted can be when coaxial wheels tire pressure exceptions, by steering system
System is corrected automatically, makes vehicle be maintained at predetermined track in the process of moving, it is ensured that traffic safety.
Accompanying drawing explanation
Fig. 1 a is that the coaxial wheels air pressure of vehicle keeps consistent schematic diagram；
Fig. 1 b is the schematic diagram that the coaxial wheels air pressure of vehicle is inconsistent；
Fig. 2 is the structural representation of the tire pressure monitoring system that the application is automatically adjusted；
Fig. 3 is the structural representation of an embodiment of the tire pressure monitoring system that the application is automatically adjusted；
Fig. 4 is the flow chart of the implementation method of the tire pressure monitoring system that the application is automatically adjusted.
Detailed description of the invention
Referring to Fig. 2, the tire pressure monitoring system that the application is automatically adjusted includes:
Multiple pressure transducers, for measuring the air pressure of each tire of vehicle and being uploaded to controller.These pressure sensings
Device may be mounted at each tire of vehicle interiorly or exteriorly.The tire pressure signal that these pressure transducers are measured can be by wireless
Mode passes to controller, for example, radio communication, and now controller also has wireless communication assembly.These pressure sensings
The tire pressure signal that device is measured can also pass to controller by wired wire harness, for example, vehicle bus.
Multiple speed probes, for measuring the rotating speed of each tire of vehicle and being uploaded to controller.These revolution speed sensings
The tach signal that device is measured can pass through wired wire harness or be wirelessly transmitted to controller, usually vehicle bus.
Vehicle is generally equipped with ABS (Anti-lock Braking System, anti-lock braking system), and ABS has survey
Measure the sensor of each vehicle wheel rotational speed.The TPMS of the application can obtain ABS signals of rotational speed sensor by vehicle bus,
And without arranging single speed probe.Or, the TPMS of the application can be separately provided speed probe.
Controller, receives each tire pressure, each tire rotational speed, speed, obtains the angle needing to correct, and controls
The steering of vehicle carries out angle correction.The ECU (electronic control unit) of controller e.g. vehicle, or individually
MCU (microcontroller), FPGA (field programmable gate array), PLD (PLD) etc..Control
It is for being mutually authenticated with each tire rotational speed signal that device gathers GES.
Vehicle first passes through great many of experiments in advance, to obtain at the different draught heads of coaxial tire, different wheel rotating speed, different car
In the case of speed, there is the angle of deviation in the travel direction of vehicle due to abnormal tyre pressure.This deviation angle is just as needing
The angle corrected, forms a tables of data prestored.Controller obtains the angle needing to correct according to the inquiry of this tables of data.
Or, experiment obtain between the travel direction deviation angle of the draught head of coaxial tire, vehicle wheel rotational speed, speed and vehicle
Functional relationship.Controller calculates the angle needing to correct according to this functional relationship.The parameters of different automobile types is different,
Thus this tables of data or functional relationship need individually to demarcate according to vehicle.
Controller control the steering of vehicle towards the rightabout of this deviation angle carry out identical with this deviation angle greatly
Little angle is corrected.Such as, in the case of certain draught head of coaxial tire, certain vehicle wheel rotational speed, certain speed
Learn that by experiment the travel direction of vehicle can deviate 0.5 degree/min to the wheel direction that tire pressure is less, then controller makes car
Steering deviate from the less wheel direction of tire pressure carry out 0.5 degree/min angle correct.
Referring to Fig. 3, this is the embodiment that the tire pressure monitoring system that the application is automatically adjusted is applied to four-wheel car.
Wherein, at each tire installation pressure transducer to measure each tire pressure, pressure transducer uploads measurement with RF-wise
Data (shown in dotted line).This four-wheel car has ABS, and this ABS has had four revolution speed sensings measuring each tire rotational speed
Device, speed probe uploads measurement data (shown in solid) by vehicle bus.One controller is by radio-frequency communication group
Part receives the measurement data of each pressure transducer, obtains measurement data and the speed of each speed probe also by vehicle bus
Data.This controller according to these data, experimental data that inquiry prestores or be calculated according to the function prestored and need to correct
Angle.This controller controls the steering of vehicle again and carries out angle correction.
Referring to Fig. 4, the implementation method of the tire pressure monitoring system that the application is automatically adjusted comprises the steps:
1st step, controller receives each tire pressure, each tire rotational speed of speed probe measurement, speed.Respectively take turns nausea
Pressure such as comes from the pressure transducer being arranged on each inside tires or outside, can pass to control by wired or wireless mode
Device processed.Each tire rotational speed such as comes from the speed probe being separately provided or in ABS, generally transmits with vehicle bus.
Speed such as comes from the existing vehicle speed sensor of vehicle, ECU etc., generally transmits with vehicle bus.
2nd step, the air pressure maximum of coaxial multiple tires is deducted air pressure minimum, obtains coaxial wheels nausea by controller
Pressure reduction.When coaxial tire pressure difference more than threshold value time, controller according to each tire pressure, each tire rotational speed, speed,
Obtain the angle needing to correct.
Vehicle first passes through great many of experiments in advance, to obtain at the different draught heads of coaxial tire, different wheel rotating speed, different car
In the case of speed, there is the angle of deviation in the travel direction of vehicle due to abnormal tyre pressure.When coaxial tire draught head relatively
Hour, the travel direction of vehicle will not deviate.When the draught head of coaxial tire is bigger, the travel direction of vehicle is
Can deviate.The draught head of coaxial tire during deviation is there is just by the travel direction of the available vehicle of experiment, as
Threshold value.The parameters of different automobile types is different, thus this threshold values needs individually to demarcate according to vehicle.
3rd step, the steering of controller control vehicle is carried out and this deviation angle towards the rightabout of this deviation angle
The angle of formed objects is corrected.
In described method the 1st step, with speed, controller also judges that each tire rotational speed is the most correct.If all tire rotating speed
All meet speed, then controller judges that each tire rotational speed signal is correct.If arbitrarily tire rotational speed is not substantially inconsistent with speed,
Then controller judges that this tire rotational speed signal is wrong, and this rub-out signal negligible is simultaneously emitted by alarm signal.
In described method the 2nd step, when coaxial tire pressure difference is more than threshold value, controller also sends alarm signal.
Existing vehicle when coaxial wheels nausea pressure differential deltap P exceedes threshold value (specifically need to demarcate) according to different automobile types,
Vehicle can deviate predetermined track, the tire direction that deflection air pressure is less in the process of moving, now needs human pilot to enter
Row regulation.The application can be when monitoring coaxial wheels tire pressure exception, and the angle that calculating needs to compensate is transferred to steering system
System, is automatically corrected by steering, makes vehicle be maintained at predetermined track in the process of moving, it is ensured that traffic safety.
Tire pressure monitoring system and its implementation that the application is automatically adjusted have the advantage that
One, can report to the police to coaxial wheels air pressure imbalance.
Its two, can be automatically adjusted turn to system to avoid the predetermined traveling side of vehicle deviation when coaxial wheels air pressure imbalance
To, this can reduce tire wear, it is simple to human pilot arrives maintenace point nearby as early as possible and maintains.
Its three, pressure transducer, speed probe, GES mutually verify, it is to avoid sensor fault and report by mistake
Alert.
Its four, can be used for vehicle unmanned in the case of direction correct.
These are only the preferred embodiment of the application, be not used to limit the application.For a person skilled in the art,
The application can have various modifications and variations.All within spirit herein and principle, any amendment of being made, equivalent
Replacement, improvement etc., within should be included in the protection domain of the application.
Claims (10)
1. the tire pressure monitoring system being automatically adjusted, is characterized in that, including:
Multiple pressure transducers, for measuring the air pressure of each tire of vehicle and being uploaded to controller；
Multiple speed probes, for measuring the rotating speed of each tire of vehicle and being uploaded to controller；
Controller, receives each tire pressure, each tire rotational speed, speed, calculates the angle needing to correct, and controls
The steering of vehicle processed carries out angle correction.
The tire pressure monitoring system being automatically adjusted the most according to claim 1, is characterized in that, described pressure transducer,
Measurement data is uploaded to controller by wired wire harness or wireless mode by speed probe；
Described wired wire harness includes vehicle bus；
Described wireless mode includes radio communication.
The tire pressure monitoring system being automatically adjusted the most according to claim 1, is characterized in that, described speed probe
It is the speed probe in anti-lock braking system or the sensor being separately provided.
The tire pressure monitoring system being automatically adjusted the most according to claim 1, is characterized in that, described controller is car
Electronic control unit, or individually microcontroller, field programmable gate array, PLD.
The tire pressure monitoring system being automatically adjusted the most according to claim 1, is characterized in that, vehicle first passes through reality in advance
Test to obtain in the case of the different draught heads of coaxial tire, different wheel rotating speed, different speed, the traveling side of vehicle
To the angle that deviation occurs due to abnormal tyre pressure；
The angle that this deviation angle is just corrected as needs, forms a tables of data prestored；Controller is according to this tables of data
Inquiry obtains the angle needing to correct；
Or, experiment obtain the travel direction deviation angle of the draught head of coaxial tire, vehicle wheel rotational speed, speed and vehicle
Between functional relationship；Controller calculates the angle needing to correct according to this functional relationship.
The tire pressure monitoring system being automatically adjusted the most according to claim 5, is characterized in that, controller controls vehicle
Steering carry out the angle with this deviation angle formed objects towards the rightabout of this deviation angle and correct.
7. an implementation method for the tire pressure monitoring system being automatically adjusted, is characterized in that, comprises the steps:
1st step, controller receives each tire pressure, each tire rotational speed, speed；
2nd step, when coaxial tire pressure difference more than threshold value time, controller according to each tire pressure, each tire rotational speed,
Speed, obtains the angle needing to correct；
3rd step, controller controls the steering of vehicle and carries out angle correction.
The implementation method of the tire pressure monitoring system being automatically adjusted the most according to claim 7, is characterized in that, described
In method the 1st step, with GES, controller also judges that each tire rotational speed signal is the most correct.
The implementation method of the tire pressure monitoring system being automatically adjusted the most according to claim 7, is characterized in that, described
In method the 2nd step, when coaxial tire pressure difference is more than threshold value, controller also sends alarm signal.
The implementation method of the tire pressure monitoring system being automatically adjusted the most according to claim 7, is characterized in that, vehicle
First pass through in advance and test to obtain in the case of the different draught heads of coaxial tire, different wheel rotating speed, different speed, car
Travel direction occur due to coaxial wheels nausea pressure reduction deviation angle；The travel direction being obtained vehicle by experiment is just opened
When originating raw deviation, the draught head of coaxial tire is as the threshold value in described method the 2nd step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181469.4A CN106143003B (en) | 2015-04-16 | 2015-04-16 | The tire pressure monitoring system and its implementation of automatic adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181469.4A CN106143003B (en) | 2015-04-16 | 2015-04-16 | The tire pressure monitoring system and its implementation of automatic adjustment |
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| CN106143003A true CN106143003A (en) | 2016-11-23 |
| CN106143003B CN106143003B (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510181469.4A Active CN106143003B (en) | 2015-04-16 | 2015-04-16 | The tire pressure monitoring system and its implementation of automatic adjustment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106828188A (en) * | 2017-01-20 | 2017-06-13 | 湖北文理学院 | The control method and control system of a kind of electric automobile |
| CN111391582A (en) * | 2020-03-26 | 2020-07-10 | 湖南行必达网联科技有限公司 | Tire pressure monitoring system and method |
| CN111605563A (en) * | 2020-05-22 | 2020-09-01 | 东风商用车有限公司 | Steering fault coping system and method for automatic driving vehicle |
| CN115352226A (en) * | 2022-09-02 | 2022-11-18 | 浙江吉利控股集团有限公司 | Tire pressure control method, device, equipment and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106828188A (en) * | 2017-01-20 | 2017-06-13 | 湖北文理学院 | The control method and control system of a kind of electric automobile |
| CN111391582A (en) * | 2020-03-26 | 2020-07-10 | 湖南行必达网联科技有限公司 | Tire pressure monitoring system and method |
| CN111605563A (en) * | 2020-05-22 | 2020-09-01 | 东风商用车有限公司 | Steering fault coping system and method for automatic driving vehicle |
| CN115352226A (en) * | 2022-09-02 | 2022-11-18 | 浙江吉利控股集团有限公司 | Tire pressure control method, device, equipment and readable storage medium |
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| Publication number | Publication date |
|---|---|
| CN106143003B (en) | 2018-08-21 |
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