CN106626991B - A kind of vehicle tyre wear sensing equipment and method and vehicle control system - Google Patents
A kind of vehicle tyre wear sensing equipment and method and vehicle control system Download PDFInfo
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- CN106626991B CN106626991B CN201510724211.4A CN201510724211A CN106626991B CN 106626991 B CN106626991 B CN 106626991B CN 201510724211 A CN201510724211 A CN 201510724211A CN 106626991 B CN106626991 B CN 106626991B
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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
- B60C19/00—Tyre parts or constructions not otherwise provided for
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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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C2019/006—Warning devices, e.g. devices generating noise due to flat or worn tyres
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention relates to vehicle tyre abrasion detection field, a kind of vehicle tyre wear sensing equipment and method are provided and vehicle control system, the vehicle tyre abrasion pre-warning detection device include：First distance detection device, for measuring the tire of vehicle at a distance from wheel cover；Second distance detection device, for measuring the suspension of vehicle at a distance from vehicle body；Processing unit, tire is at a distance from wheel cover and measured suspension obtains the actual range of suspension and tire at a distance from vehicle body according to measured under vehicle load, and tire wear amount is calculated according to the initial distance of the actual range and suspension and tire under Vehicle preparation quality of suspension and tire；Warning device is alarmed according to tire wear amount.Technical solutions according to the invention can calculate the abrasion condition of vehicle tyre automatically in the case where not changing tire construction and can control the travel speed of vehicle according to tire wear amount to ensure traffic safety.
Description
Technical field
The present invention relates to vehicle tyre abrasion detection technical field, more particularly to a kind of vehicle tyre wear sensing equipment and
Method and vehicle control system.
Background technology
The method of currently used detection vehicle tyre abrasion condition is to install resistance wire or electric elements in inside tires,
Can also there be abrasion to resistance wire or electric elements while worn tire, thus resistance wire or the electricity of electric elements can be passed through
The situation of change of resistance value obtains the abrasion condition of tire.
However, this mode in the prior art has the following disadvantages：1, mounted on the resistance wire of inside tires or electric appliance
Element can cause tire periphery load uneven, so that dynamic balancing effect is deteriorated；If 2, being mounted on the resistance of inside tires
Silk or electric elements damage, can not repair, and can only integral replacing tire, this also results in many unnecessary wastes；
3, resistance wire or electric elements are embedded in tire, due to the particularity of the rubber material of tire, can cause the embedded resistance of tire
The intensity at the position of silk or electric elements is deteriorated, this can seriously affect the service life of tire, be also possible that under extreme operating condition
It blows out, this has seriously affected the safety driven；4, the extremely difficult realization of signal transmission, and the poor reliability, of high cost being wirelessly transferred,
And easily by external disturbance.
Invention content
In view of this, the present invention is directed to propose a kind of vehicle tyre wear sensing equipment, not change tire construction
In the case of calculate the abrasion condition of vehicle tyre automatically.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of vehicle tyre wear sensing equipment, the vehicle tyre wear sensing equipment include：First distance detection dress
It sets, for measuring the tire of the vehicle at a distance from wheel cover；Second distance detection device, the suspension for measuring the vehicle
At a distance from vehicle body；Processing unit, according to measured tire under vehicle load at a distance from wheel cover and measured suspension
It is and whole according to the actual range of the suspension and tire and in vehicle with the actual range for obtaining suspension and tire at a distance from vehicle body
Tire wear amount is calculated in the initial distance of suspension and tire under standby quality.
Further, the actual range of the suspension and tire be measured tire and wheel cover under vehicle load away from
From the difference at a distance from measured suspension and vehicle body.
Further, the tire wear amount is calculated by the following formula to obtain：D=(G1-H1)-(G2-H2)；Wherein, D
For tire wear amount, G1For first distance detection device (101) tire measured under vehicle load and wheel cover away from
From G2It is the tire under Vehicle preparation quality at a distance from wheel cover, H1It is the second distance detection device (102) in vehicle
The lower measured suspension of load is at a distance from vehicle body, H2It is the suspension under Vehicle preparation quality at a distance from vehicle body, wherein G1-
H1For the actual range of the suspension and tire, G2-H2For the initial distance of the suspension and tire.
Further, first distance detection device is ultrasonic distance sensor, and the wheel cover in the vehicle is arranged
On；And/or the second distance detection device is ultrasonic distance sensor, is arranged on the suspension of the vehicle.
Compared with the existing technology, vehicle tyre wear sensing equipment of the present invention has the advantage that：
(1) it is of the present invention by measured tire under vehicle load at a distance from wheel cover and measured suspension
The initial distance of suspension and tire with the actual range for obtaining suspension and tire at a distance from vehicle body and under Vehicle preparation quality
Tire wear amount is calculated, fundamentally solves inside tires integrated resistor silk or electronic device causes tire periphery load
Unevenness even results in the problem of blowing out.And by using the measurement scheme of two distance detection devices, effectively prevent load change
Change the influence to measurement accuracy.
(2) it is of the present invention by ultrasonic distance sensor come measurement distance, have measure it is accurate, contactless, anti-
The advantages that water, anticorrosion, low cost.
Another object of the present invention is to propose a kind of vehicle control system, to control the row of vehicle according to tire wear amount
Speed is sailed to ensure traffic safety.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of vehicle control system, is arranged the above vehicle tyre wear sensing equipment, and vehicle control system further includes：Vehicle
Controller, the traveling for controlling the vehicle according to the tire wear amount.
Further, the vehicle control device is additionally operable to：It is more than preset risk distance in the tire wear amount
But less than in the case of preset critical distance, control vehicle less than the speed of predetermined speed to travel；And described
In the case that tire wear amount is greater than or equal to preset critical distance, the vehicle control device control vehicle stops row
It sails.
Further, the vehicle control system further includes：Warning device, it is advance for being more than in the tire wear amount
It alarms in the case of the risk distance of setting.
Compared with the existing technology, vehicle control system of the present invention has the advantage that：
(1) vehicle control device of the present invention can ensure driver's according to the traveling of tire wear amount control vehicle
Driving safety simultaneously reminds driver's re-type.
(2) of the present invention that the traveling of vehicle is controlled by the judgement result of risk distance and critical distance, make be
The practicability of system is stronger, can remind as early as possible driver, reserves the time of driver's re-type.
It is (3) of the present invention to be alarmed by warning device in the case where tire wear amount is more than risk distance,
Driver's re-type can be not only reminded, surrounding vehicles can also be played a warning role.
Another object of the present invention is to propose a kind of vehicle tyre wear detecting method, not change tire construction
In the case of calculate the abrasion condition of vehicle tyre automatically.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of vehicle tyre abrasion pre-warning detection method, the vehicle tyre abrasion pre-warning detection method include：Measure institute
The tire of vehicle is stated at a distance from wheel cover and the suspension of the vehicle is at a distance from vehicle body；Measured by under vehicle load
Tire is at a distance from wheel cover and measured suspension obtains the actual range of suspension and tire at a distance from vehicle body, and according to described
Tire wear is calculated in the initial distance of the actual range and suspension and tire under Vehicle preparation quality of suspension and tire
Amount；And it is alarmed according to the tire wear amount.
Further, the actual range of the suspension and tire be measured tire and wheel cover under vehicle load away from
From the difference at a distance from measured suspension and vehicle body.
Further, the tire wear amount is calculated by the following formula to obtain：D=(G1-H1)-(G2-H2)；
Wherein, D is tire wear amount, G1It is tire measured under vehicle load at a distance from wheel cover, G2For in vehicle
Tire under kerb weight is at a distance from wheel cover, H1It is suspension measured under vehicle load at a distance from vehicle body, H2For in vehicle
Suspension under kerb weight is at a distance from vehicle body, wherein G1-H1For the actual range of the suspension and tire, G2-H2For institute
State the initial distance of suspension and tire.
The vehicle tyre wear detecting method is had compared with the existing technology with above-mentioned vehicle tyre wear sensing equipment
Some advantages are identical, and details are not described herein.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the block diagram of the vehicle tyre wear sensing equipment described in the embodiment of the present invention；
Fig. 2 is the block diagram of the vehicle control system described in the embodiment of the present invention；
Fig. 3 is the diagram of the Vehicular system composition and control relevant device described in the embodiment of the present invention；And
Fig. 4 is the flow chart of the vehicle tyre wear detecting method described in the embodiment of the present invention.
Reference sign：
100- vehicle tyre wear sensing equipments, the first distance detection devices of 101-, 102- second distance detection devices,
200- vehicle control devices, 300- warning devices.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In addition, be previously mentioned in an embodiment of the present invention under vehicle load, refer to vehicle in the case that loaded.
Be previously mentioned in an embodiment of the present invention under Vehicle preparation quality, refer to vehicle in the case of zero load.In addition, this field
It will be appreciated by the skilled person that wheel cover is the part for belonging to vehicle body.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the block diagram of the vehicle tyre wear sensing equipment 100 described in the embodiment of the present invention, as shown in Figure 1, the vehicle
Tire wear detection device 100 includes the first distance detection device 101, second distance detection device 102 and processing unit 103.
Wherein, the first distance detection device 101 is used to measure the tire of vehicle at a distance from wheel cover；Second distance detection device 102 is used
In measure vehicle suspension at a distance from vehicle body；Processing unit 103 is according to tire and wheel cover measured under vehicle load
Distance and measured suspension obtain the actual range of suspension and tire at a distance from vehicle body, and according to the reality of suspension and tire
Tire wear amount is calculated in the initial distance of distance and suspension and tire under Vehicle preparation quality.
Wherein, the actual range of suspension and tire by a distance from tire and wheel cover measured under vehicle load with surveyed
Difference of the suspension of amount at a distance from vehicle body.The initial distance of the suspension under Vehicle preparation quality and tire is that basis exists above
Tire under Vehicle preparation quality is at a distance from wheel cover and suspension is calculated at a distance from vehicle body, and calculates suspension and vehicle body
Actual range computational methods it is similar, the initial distance of the suspension and vehicle body is tire and wheel cover under Vehicle preparation quality
Difference of the distance at a distance from suspension and vehicle body, wherein tire under Vehicle preparation quality is at a distance from wheel cover and suspension
Be at a distance from vehicle body vehicle production complete after just it is fixed thus can vehicle production completion after and vehicle not
In the case of using (can also be that operating range is very short, for example, 30 kilometers or less), tire is measured under Vehicle preparation quality
It at a distance from vehicle body and is stored in memory with suspension at a distance from wheel cover.
The process of tire wear detection needs to carry out after vehicle energization, because in vehicle tyre wear sensing equipment 100
Each device be required for be powered after could work normally, it is of course also possible to be set as vehicle launch later just proceed by wheel
Tire abrasion detection.
Specifically, tire wear amount can be calculated by following formula (1)：
D=(G1-H1)-(G2-H2) (1)
Wherein, D is tire wear amount, G1For the first distance detection device 101 tire measured under vehicle load with
The distance of wheel cover, G2It is the tire under Vehicle preparation quality at a distance from wheel cover, H1It is second distance detection device 102 in vehicle
The lower measured suspension of load is at a distance from vehicle body, H2It is the suspension under Vehicle preparation quality at a distance from vehicle body, wherein
G2And H2For pre-stored fixed value, G1-H1For the actual range of suspension and tire, G2-H2For suspension and tire it is initial away from
From.
Since suspension can become larger at a distance from tire with the abrasion of tire, so, by calculating suspension and tire
The difference of the initial distance of actual range and suspension and tire can be obtained by tire wear amount.
Wherein, the first distance detection device 101 can be ultrasonic distance sensor and be arranged on the wheel cover of vehicle, the
Two distance detection devices 102 or ultrasonic distance sensor are simultaneously arranged on the suspension of vehicle.
Ultrasonic distance sensor is by the sound wave conduction time from sensor surface to reflecting surface come measurement distance,
The ultrasonic wave skyborne propagation time is t, and the speed c that sound wave is propagated in air is fixed, so according to formula s=ct/2
Distance s can be calculated.
Fig. 2 is the block diagram of the vehicle control system described in the embodiment of the present invention, as shown in Fig. 2, the vehicle control system packet
Vehicle tyre wear sensing equipment 100 described above is included, further includes vehicle control device 200.Vehicle control device 200 is used for root
The traveling of vehicle is controlled according to tire wear amount.
With reference to Fig. 3 to the present invention is further elaborated.Fig. 3 is the Vehicular system group described in the embodiment of the present invention
At and control relevant device diagram, the function of vehicle control device 200 can be realized by the system CPU of vehicle, general feelings
Under condition, after driver enters vehicle, driver can open ignition switch, and system switching K can correspondingly open system later
It starts to work, the signal that system brings into operation is obtained by the first input end P1 of system CPU, system CPU controls the first distance
Detection device 101 and second distance detection device 102 proceed by distance exam, wherein pass through the second input terminal P2 with CPU
First distance detection device 101 of connection measures tire and wheel cover distance G1, pass through the third input terminal P3 with system CPU
The second distance detection device 102 of connection measures suspension and vehicle body distance H1。
As shown in Figures 2 and 3, vehicle control system provided by the invention further includes warning device 300, the warning device
300 in the case where tire wear amount is more than preset risk distance for alarming.Further, vehicle control device
It is additionally operable to：In the case where tire wear amount is more than preset risk distance but is less than preset critical distance, control
Vehicle processed less than the speed of predetermined speed to travel；And it is greater than or equal to preset critical distance in tire wear amount
In the case of, vehicle control device controls vehicle and stops traveling.It is readily apparent that risk distance is less than critical distance, also, it is dangerous
Preset when distance and critical distance, different values can be arranged in different vehicles.
For Fig. 3, tire wear amount be more than preset risk distance but less than the preset limit away from
From in the case of, system CPU sends out corresponding letter by the CAN bus being connect with output end P4 to Engine ECU, speed changer TCU
Number the travel speed of vehicle is made to reduce (for example, being reduced to 30km/h), vehicle is made to reach a kind of state run at a low speed.In tire
In the case that wear extent is greater than or equal to preset critical distance, system CPU is total by the CAN being connect with output end P4
Line, sending out corresponding signal to Engine ECU, speed changer TCU makes vehicle stopping traveling (usually make the travel speed of vehicle slow
It reduces).
As shown in figure 3, the system CPU on vehicle also connects warning device by the CAN bus being connect with output end P4
And metering device.Metering device is usually the speed for showing current vehicle traveling, and warning device can be by itself having on vehicle
Some audio players and light-emitting device are alarmed to realize, with alerting drivers re-type, also, warning device can also lead to
Warning lamp and the buzzer of outside vehicle are crossed to warn surrounding vehicles (for example, sending out the sound of " drop " every 10s), to ensure to drive
Sail safety.
Fig. 4 is the flow chart of the vehicle tyre wear detecting method described in the embodiment of the present invention, as shown in figure 4, vehicle wheel
Tire wear detecting method includes：Measure vehicle tire is at a distance from wheel cover and the suspension of vehicle is at a distance from vehicle body；According to
Measured tire is at a distance from wheel cover under vehicle load and measured suspension obtains suspension and tire at a distance from vehicle body
Actual range, and according to the initial distance meter of suspension and the actual range and suspension and tire under Vehicle preparation quality of tire
Calculation obtains tire wear amount.
It should be noted that the detail and benefit of vehicle tyre wear detecting method provided by the invention and the present invention
The vehicle tyre abrasion pre-warning detection device of offer is similar, and in this, it will not go into details.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of vehicle tyre wear sensing equipment (100), which is characterized in that the vehicle tyre wear sensing equipment (100)
Including：
First distance detection device (101), for measuring the tire of the vehicle at a distance from wheel cover；
Second distance detection device (102), for measuring the suspension of the vehicle at a distance from vehicle body；
Processing unit (103), according to measured tire under vehicle load at a distance from wheel cover and measured suspension and vehicle
The distance of body obtains the actual range of suspension and tire, and according to the actual range of the suspension and tire and in Vehicle preparation matter
Tire wear amount is calculated in the initial distance of suspension and tire under amount.
2. vehicle tyre wear sensing equipment (100) according to claim 1, which is characterized in that the suspension and tire
Actual range be tire measured under vehicle load at a distance from wheel cover at a distance from measured suspension and vehicle body
Difference.
3. vehicle tyre wear sensing equipment (100) according to claim 2, which is characterized in that the tire wear amount
It is calculated by the following formula to obtain：
D=(G1-H1)-(G2-H2)；
Wherein, D is tire wear amount, G1For first distance detection device (101) tire measured under vehicle load with
The distance of wheel cover, G2It is the tire under Vehicle preparation quality at a distance from wheel cover, H1For the second distance detection device
(102) suspension measured under vehicle load is at a distance from vehicle body, H2For the suspension and vehicle body under the Vehicle preparation quality
Distance, wherein G1-H1For the actual range of the suspension and tire, G2-H2For the initial distance of the suspension and tire.
4. vehicle tyre wear sensing equipment (100) according to claim 1, which is characterized in that
First distance detection device (101) is ultrasonic distance sensor, is arranged on the wheel cover of the vehicle；And/or
The second distance detection device (102) is ultrasonic distance sensor, is arranged on the suspension of the vehicle.
5. a kind of vehicle control system, which is characterized in that be provided with the vehicle tyre mill described in any one of claim 1-4
Detection device (100) is damaged, the vehicle control system further includes：
Vehicle control device (200), the traveling for controlling the vehicle according to the tire wear amount.
6. vehicle control system according to claim 5, which is characterized in that the vehicle control device (200) is additionally operable to：
The tire wear amount is more than preset risk distance but less than in the case of preset critical distance, controls vehicle
To be travelled less than the speed of predetermined speed；And it is greater than or equal to the feelings of preset critical distance in the tire wear amount
Under condition, vehicle control device (200) the control vehicle stops traveling.
7. vehicle control system according to claim 5 or 6, which is characterized in that the vehicle control system further includes：
Warning device (300), for alarming in the case where the tire wear amount is more than preset risk distance.
8. a kind of vehicle tyre wear detecting method, which is characterized in that the vehicle tyre wear detecting method includes：
The tire of the vehicle is measured at a distance from wheel cover and the suspension of the vehicle is at a distance from vehicle body；
It is hanged at a distance from vehicle body with measured suspension at a distance from wheel cover according to measured tire under vehicle load
The actual range of frame and tire, and according to the actual range and the suspension under Vehicle preparation quality and wheel of the suspension and tire
Tire wear amount is calculated in the initial distance of tire.
9. vehicle tyre wear detecting method according to claim 8, which is characterized in that the reality of the suspension and tire
Difference of the distance for measured tire under vehicle load at a distance from wheel cover at a distance from measured suspension and vehicle body.
10. vehicle tyre wear detecting method according to claim 9, which is characterized in that the tire wear amount passes through
Following formula is calculated：
D=(G1-H1)-(G2-H2)；
Wherein, D is tire wear amount, G1It is tire measured under vehicle load at a distance from wheel cover, G2For in Vehicle preparation
Tire under quality is at a distance from wheel cover, H1It is suspension measured under vehicle load at a distance from vehicle body, H2It is whole in vehicle
Suspension under standby quality is at a distance from vehicle body, wherein G1-H1For the actual range of the suspension and tire, G2-H2It is described outstanding
The initial distance of frame and tire.
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| CN201510724211.4A CN106626991B (en) | 2015-10-29 | 2015-10-29 | A kind of vehicle tyre wear sensing equipment and method and vehicle control system |
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|---|---|---|---|
| CN201510724211.4A CN106626991B (en) | 2015-10-29 | 2015-10-29 | A kind of vehicle tyre wear sensing equipment and method and vehicle control system |
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| CN106626991B true CN106626991B (en) | 2018-08-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717027A (en) * | 2018-05-30 | 2018-10-30 | 重庆沐信润喆网络科技有限公司 | A kind of automation degree of tire abrasion test device |
| CN109604217B (en) * | 2018-12-20 | 2022-02-15 | 东风小康汽车有限公司重庆分公司 | Method and system for automatically adjusting cleaning roller spacing |
| CN112629887B (en) * | 2020-12-08 | 2021-12-14 | 东风汽车集团有限公司 | Tire scratch detection device and method |
| CN115805778A (en) * | 2021-09-15 | 2023-03-17 | 博泰车联网(南京)有限公司 | Tire wear automatic monitoring device and system |
| CN116754420B (en) * | 2023-08-21 | 2024-03-19 | 江苏万胜科技股份有限公司 | Device and method for detecting multiple characteristics of vehicle crawler belt |
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| ATE402830T1 (en) * | 2001-11-02 | 2008-08-15 | Michelin Soc Tech | METHOD AND DEVICE FOR MEASURING WEAR OF A VEHICLE-MOUNTED TIRE |
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| DE19613916A1 (en) * | 1996-04-06 | 1997-10-09 | Daimler Benz Ag | Method and device for tire monitoring in a vehicle |
| DE20206518U1 (en) * | 2002-04-24 | 2002-09-12 | Lu, Chun-Ming, Taoyuan | Warning system for burst vehicle tires |
| JP2003344205A (en) * | 2002-05-24 | 2003-12-03 | Bridgestone Corp | Method of detecting abnormality of internal pressure in tire |
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