CN107499074A - Control the method, apparatus and storage medium of vehicle safe driving - Google Patents
Control the method, apparatus and storage medium of vehicle safe driving Download PDFInfo
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- CN107499074A CN107499074A CN201710643589.0A CN201710643589A CN107499074A CN 107499074 A CN107499074 A CN 107499074A CN 201710643589 A CN201710643589 A CN 201710643589A CN 107499074 A CN107499074 A CN 107499074A
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
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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
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
Abstract
The disclosure is directed to a kind of method, apparatus and storage medium for controlling vehicle safe driving.Methods described includes：Coefficient of friction between the speed and wheel and track of acquisition vehicle；According to the speed and the coefficient of friction, the braking distance of vehicle is calculated；It is less than default coefficient of friction threshold value in the coefficient of friction, or when the braking distance is more than the safe distance corresponding with the speed, increases the degree of roughness of wheel surface.So, when being constituted a threat to because of frictional force deficiency to vehicle safe driving, vehicle by the frictional force for increasing the degree of roughness of wheel surface to increase between wheel and track, can ensure the driving safety of vehicle, vehicle is realized safety traffic on relatively sliding road surface.
Description
Technical field
This disclosure relates to field of vehicle safety, more particularly to a kind of method, apparatus for controlling vehicle safe driving and storage
Medium.
Background technology
With the increasingly increase of automobile quantity, traffic safety becomes more and more important.When driving, keep safety away from
From the generation that can effectively try to forestall traffic accidents.Safe distance refers to front vehicle in order to avoid unexpected touch occurs with front vehicles
The minimum separation distances for hitting and being kept under steam with front truck.In order to ensure traffic safety, the braking distance of vehicle can not be big
In safe distance.But in vehicle travel process, for different pavement behavior or for different speeds, brake away from
From different.For example, if vehicle is driven to from dry road surface after rain on the road surface of ponding, due to the change of pavement behavior
Change, the braking distance of vehicle may increase, so as to meet the requirement of safe distance.
The content of the invention
To overcome problem present in correlation technique, the disclosure provides a kind of method, apparatus for controlling vehicle safe driving
And storage medium.
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of method for controlling vehicle safe driving, methods described bag
Include：Coefficient of friction between the speed and wheel and track of acquisition vehicle；According to the speed and the friction system
Number, calculate the braking distance of vehicle；It is less than default coefficient of friction threshold value in the coefficient of friction, or the braking distance is big
When the safe distance corresponding with the speed, increase the degree of roughness of wheel surface.
Alternatively, the coefficient of friction obtained between the wheel and track, including：Obtain vehicle position
Weather information；, will be corresponding with the Weather information according to the corresponding relation between default Weather information and coefficient of friction
Coefficient of friction be defined as coefficient of friction between the wheel and track.
Alternatively, the coefficient of friction obtained between the wheel and track, including：Obtain camera shooting
Track image；According to the pavement behavior of track described in the track image recognition；According to default road surface shape
Corresponding relation between condition and coefficient of friction, the coefficient of friction corresponding with the pavement behavior is defined as the wheel and row
Sail the coefficient of friction between road surface.
Alternatively, methods described also include it is following at least one：It is less than default coefficient of friction threshold in the coefficient of friction
Value, or when the braking distance is more than the safe distance corresponding with the speed, export for prompting user's reduction speed
Prompting message；In the case where the degree of roughness of the surface of vehicle is increased into maximum, when the braking distance still greater than
During corresponding with speed safe distance, speed is reduced.
Alternatively, the wheel surface is provided with multiple telescopic anti-slip parts；The coarse journey of the increase wheel surface
Degree, including：At least one anti-slip part is controlled to stretch out, to increase the degree of roughness of wheel surface.
Alternatively, at least one anti-slip part of the control is stretched out, including：According to the coefficient of friction or the brake
The distance between distance and safe distance difference, it is determined that the quantity of anti-slip part to be stretched out, wherein, it is described to be stretched out anti-skidding
The quantity in portion and the range difference are proportionate variation relation, with the negatively correlated variation relation of the coefficient of friction；According to described
The distributing position of the quantity of anti-slip part to be stretched out and the multiple anti-slip part, it is determined that anti-slip part to be stretched out；Described in control
Anti-slip part to be stretched out is stretched out.
Alternatively, the anti-slip part is anti-skid stud.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of device for controlling vehicle safe driving, described device bag
Include：Acquisition module, be configured as obtain vehicle speed and wheel and track between coefficient of friction；Computing module,
It is configured as, according to the speed and the coefficient of friction, calculating the braking distance of vehicle；First control module, is configured as
The coefficient of friction is less than default coefficient of friction threshold value, or the braking distance is more than the safety corresponding with the speed
Apart from when, increase the degree of roughness of wheel surface.
Alternatively, the acquisition module includes：First acquisition submodule, it is configured as obtaining the weather of vehicle position
Information；First determination sub-module, it is configured as according to the corresponding relation between default Weather information and coefficient of friction, will be with institute
State the coefficient of friction that the corresponding coefficient of friction of Weather information is defined as between the wheel and track.
Alternatively, the acquisition module includes：Second acquisition submodule, it is configured as obtaining the traveling road of camera shooting
Face image；Submodule is identified, is configured as the pavement behavior of the track according to the track image recognition；Second
Determination sub-module, it is configured as according to the corresponding relation between default pavement behavior and coefficient of friction, will be with the road surface shape
The corresponding coefficient of friction of condition is defined as the coefficient of friction between the wheel and track.
Alternatively, described device also include it is following at least one：Output module, it is configured as being less than in the coefficient of friction
Default coefficient of friction threshold value, or when the braking distance is more than the safe distance corresponding with the speed, exports and be used for
User is prompted to reduce the prompting message of speed；Second control module, it is configured as by the degree of roughness of the surface of vehicle
In the case of increasing to maximum, when the braking distance is still greater than the safe distance corresponding with the speed, speed is reduced.
Alternatively, the wheel surface is provided with multiple telescopic anti-slip parts；First control module is configured as
At least one anti-slip part is controlled to stretch out, to increase the degree of roughness of wheel surface.
Alternatively, first control module includes：3rd determination sub-module, it is configured to rub according to
Coefficient or the distance between the braking distance and the safe distance difference are wiped, it is determined that the quantity of anti-slip part to be stretched out, wherein,
The quantity of the anti-slip part to be stretched out and the range difference are proportionate variation relation, with the negatively correlated change of the coefficient of friction
Change relation；4th determination sub-module, it is configured as the quantity of anti-slip part to be stretched out according to and the multiple anti-slip part
Distributing position, it is determined that anti-slip part to be stretched out；Control submodule, it is configured as anti-slip part to be stretched out described in control and stretches out.
Alternatively, the anti-slip part is anti-skid stud.
According to the third aspect of the embodiment of the present disclosure, there is provided a kind of device for controlling vehicle safe driving, including：Processing
Device；For storing the memory of processor-executable instruction；Wherein, the processor is configured as：Obtain vehicle speed, with
And the coefficient of friction between wheel and track；According to the speed and the coefficient of friction, the braking distance of vehicle is calculated；
It is less than default coefficient of friction threshold value in the coefficient of friction, or the braking distance is more than the peace corresponding with the speed
During full distance, increase the degree of roughness of wheel surface.
According to the fourth aspect of the embodiment of the present disclosure, there is provided a kind of computer-readable recording medium, be stored thereon with calculating
Machine programmed instruction, the programmed instruction realize the control vehicle safe driving that disclosure first aspect is provided when being executed by processor
Method the step of.
The technical scheme provided by this disclosed embodiment can include the following benefits：According to the car of the vehicle got
The braking distance of vehicle can be calculated in speed and the coefficient of friction between wheel and track, small in the coefficient of friction
When default coefficient of friction threshold value or the braking distance are more than the safe distance corresponding with the speed, increase wheel table
The degree of roughness in face.So, when being constituted a threat to because of frictional force deficiency to vehicle safe driving, vehicle can be by increasing wheel
The degree of roughness on surface ensures the driving safety of vehicle to increase the frictional force between wheel and track, make vehicle compared with
Safety traffic can also be realized on sliding road surface.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is a kind of flow chart of the method for control vehicle safe driving according to an exemplary embodiment.
Fig. 2 is in the method for the control vehicle safe driving provided according to the disclosure, is obtained between wheel and track
Coefficient of friction the step of a kind of example implementations flow chart.
Fig. 3 is in the method for the control vehicle safe driving provided according to the disclosure, is obtained between wheel and track
Coefficient of friction the step of another example implementations flow chart.
Fig. 4 A are that wheel surface is provided with multiple stretch in the method for the control vehicle safe driving provided according to the disclosure
A kind of external structure schematic diagram of example implementations of the wheel of the anti-slip part of contracting.
Fig. 4 B are that wheel surface is set telescopic in the method for the control vehicle safe driving provided according to the disclosure
A kind of overlooking the structure diagram of example implementations of anti-slip part.
Fig. 4 C are that wheel surface is set telescopic in the method for the control vehicle safe driving provided according to the disclosure
A kind of structural representation of example implementations when anti-slip part is in stretching state.
Fig. 4 D are that wheel surface is set telescopic in the method for the control vehicle safe driving provided according to the disclosure
Anti-slip part is in a kind of structural representation of example implementations when not extending out state.
Fig. 5 is the degree of roughness for increasing wheel surface in the method for the control vehicle safe driving provided according to the disclosure
The step of a kind of example implementations flow chart.
Fig. 6 is in the method for the control vehicle safe driving provided according to the disclosure, controls at least one anti-slip part to stretch out
The step of a kind of example implementations flow chart.
Fig. 7 is a kind of flow chart of the method for control vehicle safe driving according to another exemplary embodiment.
Fig. 8 is a kind of block diagram of the device of control vehicle safe driving according to an exemplary embodiment.
Fig. 9 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.
Figure 10 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.
Figure 11 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.
Figure 12 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.
Figure 13 is a kind of block diagram of the device of control vehicle safe driving according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of flow chart of the method for control vehicle safe driving according to an exemplary embodiment, such as Fig. 1
Shown, this method may comprise steps of.
In a step 101, obtain vehicle speed and wheel and track between coefficient of friction.
The acquisition of the coefficient of friction between speed and wheel and track to vehicle can be in order in subsequent step
Calculating to the braking distance of vehicle.Illustratively, vehicle can obtain speed by the vehicle speed sensor carried.
Coefficient of friction between wheel and track is related with the pavement behavior of track.Pavement behavior can be such as
It is road surface normal, surface gathered water, snowfield, ice face etc..Illustratively, when the pavement behavior of track is surface gathered water, then can
Coefficient of friction is caused to reduce compared to the coefficient of friction on normal road surface.And for example, when the pavement behavior of track is snowfield
Or during ice face, then coefficient of friction can be caused significantly to reduce compared to the coefficient of friction on normal road surface.
In the disclosure, the coefficient of friction obtained between wheel and track can be in several ways.
In one embodiment, as shown in Fig. 2 the step of obtaining the coefficient of friction between wheel and track can be with
Comprise the following steps.
In step 201, the Weather information of vehicle position is obtained.
In one embodiment, vehicle can determine the position where vehicle by self poisoning system, afterwards by this
Position can obtain the Weather information of vehicle position in real time.In another embodiment, vehicle can be with user's (e.g., car
Upper occupant) terminal (for example, mobile phone) communication, the Weather information of vehicle position is obtained from terminal.Illustratively, the weather is believed
Breath can for example, sunny, rainfall, snowfall etc..
In step 202, will be with the Weather information according to the corresponding relation between default Weather information and coefficient of friction
Corresponding coefficient of friction is defined as the coefficient of friction between wheel and track.
Coefficient of friction can be varied from according to the change of weather.For example, it is assumed that when weather information table shows that vehicle institute is in place
Put when there is no sleet, the coefficient of friction between vehicle and track is the first coefficient of friction, then when weather information table shows car
When position is snowed, then when now the coefficient of friction between vehicle and track can be compared to not snowing before
First coefficient of friction has declined, and such as drops to the second coefficient of friction.Various Weather informations can be pre-set is with friction
Corresponding relation between number.So, vehicle can be closed according to the Weather information of Current vehicle position by inquiring about the correspondence
System, can obtain the coefficient of friction corresponding with the Weather information, and by the coefficient of friction be defined as wheel and track it
Between coefficient of friction.Illustratively, the vehicle position Weather information got is rainfall, then according to default Weather information
Corresponding relation between coefficient of friction, coefficient of friction corresponding to rainy weather can be defined as between wheel and track
Coefficient of friction.
In another embodiment, as shown in figure 3, the step of obtaining the coefficient of friction between wheel and track can
To comprise the following steps：
In step 301, the track image of camera shooting is obtained；
In step 302, according to the pavement behavior of the track image recognition track；
In step 303, will be with the pavement behavior according to the corresponding relation between default pavement behavior and coefficient of friction
Corresponding coefficient of friction is defined as the coefficient of friction between wheel and track.
The track that the camera carried on vehicle can travel to vehicle is shot, and obtains track image.
Vehicle can identify the pavement behavior of the track according to the track image.As described above, pavement behavior is different, friction
Coefficient is different therewith.According to the corresponding relation between default pavement behavior and coefficient of friction, the road that can be obtained and recognize
The corresponding coefficient of friction of planar condition, and the coefficient of friction is defined as to the coefficient of friction between wheel and track.Example
Ground, the pavement behavior that the track image recognition shot by camera goes out current driving road surface is snowfield, then, according to pre-
If pavement behavior and coefficient of friction between corresponding relation, the coefficient of friction corresponding with snowfield can be defined as wheel and row
Sail the coefficient of friction between road surface.
In another embodiment, pavement behavior can be obtained by the road surface sensor of vehicle self-carrying, so as to obtain
Coefficient of friction between wheel and track.Illustratively, if road surface sensor detects surface gathered water, then road can be passed through
Corresponding relation between the thickness and default ponding thickness and coefficient of friction of the surface gathered water that face sensor obtains, this is accumulated
Coefficient of friction corresponding to water thickness is defined as the coefficient of friction between wheel and track.
Fig. 1 is returned to, in a step 102, according to the speed and the coefficient of friction, calculates the braking distance of vehicle.
Illustratively, braking distance s can be calculated by equation below (1)：
Wherein, v is speed, and g is that (general value is 9.8m/s to acceleration of gravity2), μ is between wheel and track
Coefficient of friction.
In step 103, it is less than default coefficient of friction threshold value in the coefficient of friction, or the braking distance is more than and this
During the corresponding safe distance of speed, increase the degree of roughness of wheel surface.
Coefficient of friction between wheel and track is relevant with the pavement behavior of track, acceptable and wheel surface
Degree of roughness it is relevant.Surface conditions are bad cause vehicle driving safety to be on the hazard in the case of, can be by increasing car
Coefficient of friction between the degree of roughness increase wheel and track of wheel surface, so as to lift the security of vehicle traveling.
In one embodiment, coefficient of friction threshold value is preset.Illustratively, the coefficient of friction threshold value can be to ensure car
The allowed minimized friction coefficient of safety traffic.If the friction system between the wheel and track that are obtained by step 101
Number is less than default coefficient of friction threshold value, illustrates that the coefficient of friction between wheel and track is too small, potential safety hazard be present, needs
To ensure the safety traffic of vehicle by increasing the degree of roughness of wheel surface.Illustratively, default coefficient of friction threshold value can
Corresponding friction coefficient μ during being set to pavement behavior as ice face1(such as 0.2), when between the wheel and track got
Coefficient of friction is less than μ1When, illustrate it is now icy on road, vehicle traveling potential safety hazard be present, it is necessary to increase the coarse of wheel surface
Degree is to ensure the driving safety of vehicle.
In another embodiment, according to the speed of the vehicle of acquisition can obtain corresponding with speed safety away from
From.In order to ensure to drive safely, braking distance when vehicle travels should be less than or equal to the safe distance.When passing through above-mentioned steps
When 102 braking distances being calculated are more than the safe distance, illustrate that vehicle traveling has potential safety hazard, it is necessary to increase wheel table
The degree of roughness in face ensures traffic safety to reduce braking distance.
Degree of roughness for increasing wheel surface, it can be set in the wheel surface directly contacted with track multiple
Telescopic anti-slip part.The stretching of anti-slip part can increase the degree of roughness of wheel surface, can reach vehicle limited slip, ensure peace
The purpose travelled entirely.Illustratively, the anti-slip part can be anti-skid stud, and what the stretching of anti-skid stud can effectively strengthen wheel grabs ground
Power, reach anti-skidding purpose.
In one embodiment, multiple anti-slip parts can be embedded in wheel surface, it is preferable that multiple will can prevent
Cunning portion is uniformly embedded in wheel surface, such as multiple anti-slip parts are uniformly embedded in the tyre surface of wheel.As shown in Figure 4 A, it is tyre surface
It is inlaid with the schematic diagram of the wheel of anti-slip part.Wherein, the wheel surface is inlaid with multiple anti-slip parts 400.Fig. 4 B to Fig. 4 D are shown
The schematic diagram of anti-slip part 400.As shown in Fig. 4 B to Fig. 4 D, anti-slip part 400 can include：Base 401 and in base 401
The extensible member 402 of centre.In the present embodiment, it is actually flexible in control anti-slip part 400 to control anti-slip part 400 to stretch out
Part 402 stretches out.Wherein, base 401 plays fixation to anti-slip part 400, it is fixed on wheel surface, prevents from coming off.Such as
Shown in Fig. 4 C, when extensible member 402 is in stretching state, the degree of roughness of wheel surface is increased, and then can be lifted
The non-skid property of wheel.As shown in Figure 4 D, extensible member 402 in do not extend out state when, its top 4021 is retracted.It is optional
Ground, the top 4021 of extensible member 402 in do not extend out state when, base or contour with base can be less than, to ensure
Influence in the case where anti-slip part 400 is not employed to vehicle traveling is minimum.Alternatively, the extensible member 402 is not in
Base can be fully recessed under stretching state, so, if causing Wheel deflection because the tyre surface of wheel is softer, the vehicle of traveling is not
It can be influenceed by the anti-slip part of wheel surface.Fig. 4 A to Fig. 4 D are cup dolly and pars contractilis with regard to the base 401 of anti-slip part 400
Part 402 has carried out example for the situation of cylinder.In other cases, base 401 can also be, for example, square base, positive six
Side shape base etc., extensible member 402 can also be, for example, quadrangular, six prisms, cone etc..
In addition to embodiments shown above, anti-slip part can also be by other means set, make it in vehicle row
The purpose of the degree of roughness of increase wheel surface can be reached during sailing, herein without being described in detail.
As shown in figure 5, the degree of roughness of increase wheel surface may comprise steps of：
In step 501, at least one anti-slip part is controlled to stretch out, to increase the degree of roughness of wheel surface.
In one embodiment, vehicle can directly control all anti-slip parts on the wheel surface to stretch out.So, car
When contacting track, its degree of roughness will increase wheel surface, ensure the driving safety of vehicle.
In another embodiment, the quantity of anti-slip part to be stretched out can be determined first, as shown in fig. 6, step 501
It may comprise steps of：
In step 601, according to coefficient of friction or the distance between braking distance and safe distance difference, it is determined that to be stretched out
The quantity of anti-slip part, wherein, the quantity of anti-slip part to be stretched out and range difference are proportionate variation relation, with coefficient of friction in negative
Associated change relation.
In one embodiment, can be determined according to the coefficient of friction between wheel and track to be stretched out anti-skidding
The quantity in portion, wherein, the quantity of anti-slip part to be stretched out and the negatively correlated variation relation of the coefficient of friction.The coefficient of friction is got over
Greatly, the threat of the pavement behavior for driving safety on current driving road surface is illustrated away from smaller with default coefficient of friction threshold difference
It is smaller, stretch out less anti-slip part can meet safety traffic condition, it is thus determined that anti-slip part to be stretched out quantity
It is less.The coefficient of friction is smaller, bigger with the gap of default coefficient of friction threshold value, illustrates the pavement behavior on current driving road surface
There is very big threat for driving safety, require height, it is necessary to stretch out a large amount of anti-slip parts to reach for the degree of roughness of wheel surface
Increase wheel surface degree of roughness purpose, it is thus determined that anti-slip part to be stretched out quantity it is more.
In another embodiment, can be determined according to the distance between braking distance and safe distance difference to be stretched out
The quantity of anti-slip part, wherein, the quantity of anti-slip part to be stretched out and the range difference are proportionate variation relation.Braking distance and peace
The distance between full distance difference is bigger, illustrates to need reduced braking distance bigger, and the degree of roughness requirement for wheel surface is got over
Height, so the quantity of the anti-slip part to be stretched out determined is more.Braking distance and poor smaller, the explanation of the distance between safe distance
Need reduced braking distance smaller, though required for the degree of roughness of wheel surface, it is less demanding, so what is determined waits to stretch
The quantity of the anti-slip part gone out can be lacked.
In step 602, according to the distributing position of the quantity of anti-slip part to be stretched out and multiple anti-slip parts, it is determined that treating
The anti-slip part of stretching.
Multiple anti-slip parts can have different distribution modes in wheel surface, such as be uniformly distributed, random distribution etc..According to
The quantity of the anti-slip part to be stretched out determined, with reference to the distributing position of multiple anti-slip parts, can choose suitable anti-slip part, by it
As anti-slip part to be stretched out.Alternatively, the anti-slip part to be stretched out selected is evenly distributed on wheel surface, is so advantageous to
Ensure the stability of increase wheel surface degree of roughness rear vehicle traveling.
In step 603, anti-slip part to be stretched out is controlled to stretch out.
According to the anti-slip part to be stretched out determined in step 602, stretched out by the corresponding anti-slip part of wagon control.
By the above-mentioned means, according to coefficient of friction or the difference of the distance between braking distance and safe distance difference, stretch out
Anti-slip part quantity and position respective change, ensure drive safely on the premise of, reduce the anti-slip part that need not be stretched out
Utilization rate, it is possible to reduce the abrasion to anti-slip part, extend the service life of anti-slip part.
In addition, human pilot can also control the stretching of anti-slip part manually.Illustratively, human pilot can be by by motor-car
Anti-slip part control button on causes anti-slip part to stretch out, and reaches the purpose of the degree of roughness increase of control wheel surface manually.
Pass through above-mentioned technical proposal, when being constituted a threat to because of frictional force deficiency to vehicle safe driving, vehicle can pass through
Increase the degree of roughness of wheel surface to increase the frictional force between wheel and track, ensure the driving safety of vehicle, make
Vehicle can also realize safety traffic on relatively sliding road surface.
Fig. 7 is a kind of flow chart of the method for control vehicle safe driving according to another exemplary embodiment, such as
Shown in Fig. 7, this method on the basis of the step of method shown in Fig. 1, can also include it is following at least one：
In step 701, it is less than default coefficient of friction threshold value in the coefficient of friction, or the braking distance is more than and this
During the corresponding safe distance of speed, the prompting message for prompting user to reduce speed is exported；
In a step 702, in the case where the degree of roughness of surface of vehicle is increased into maximum, when braking distance still greater than
During corresponding with speed safe distance, speed is reduced.
Be less than default coefficient of friction threshold value in coefficient of friction, or braking distance be more than the safety corresponding with speed away from
From when, except increase wheel surface degree of roughness, can also be ensured by way of reducing speed traveling safety.For example,
Vehicle can export the prompting message for prompting user to reduce speed, remind user so that user takes countermeasure.Example
Ground, can by Vehicular screen export for example " current road conditions are bad, low speed of begging to surrender！" etc. be used to prompt user to reduce speed
Prompting message, it is easy to user to take corresponding measure manually according to the prompting message.It should be noted that exported in step 701
The step of for prompting user to reduce the prompting message of speed and the step of the degree of roughness of increase wheel surface in above-mentioned steps 103
It is rapid without fixed sequencing, can simultaneously perform and perform when can also be different.Illustratively, it is less than in coefficient of friction default
Coefficient of friction threshold value, or when braking distance is more than the safe distance corresponding with speed, increase the coarse of wheel surface first
Degree, the prompting message for prompting user to reduce speed is exported afterwards.For another example it is less than default friction system in coefficient of friction
Number threshold values, or when braking distance is more than the safe distance corresponding with speed, increase the degree of roughness of wheel surface, and simultaneously
Export the prompting message for prompting user to reduce speed.
In addition, braking distance is relevant with the coefficient of friction of track with speed and wheel, coefficient of friction identical situation
Under, speed is higher, and braking distance is longer.In the case where the degree of roughness of surface of vehicle is increased into maximum, if braking distance is still
Safe distance can not be so reduced to, at this moment needs to force to reduce speed, to ensure the driving safety of vehicle.
Fig. 8 is a kind of block diagram of the device of control vehicle safe driving according to an exemplary embodiment.Such as Fig. 8 institutes
Show, the device 800 can include：Acquisition module 801, be configured as obtaining vehicle speed and wheel and track it
Between coefficient of friction；Computing module 802, be configured as, according to the speed and the coefficient of friction, calculating the brake of vehicle away from
From；First control module 803, it is configured as being less than default coefficient of friction threshold value, or the brake in the coefficient of friction
When distance is more than the safe distance corresponding with the speed, increase the degree of roughness of wheel surface.
Fig. 9 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.Such as Fig. 9
Shown, acquisition module 801 can include：First acquisition submodule 901, it is configured as obtaining the weather letter of vehicle position
Breath；First determination sub-module 902, it is configured as according to the corresponding relation between default Weather information and coefficient of friction, will be with
The corresponding coefficient of friction of the Weather information is defined as the coefficient of friction between the wheel and track.
Figure 10 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.Such as figure
Shown in 10, acquisition module 801 can include：Second acquisition submodule 1001, it is configured as obtaining the traveling road of camera shooting
Face image；Submodule 1002 is identified, is configured as the pavement behavior of the track according to the track image recognition；
Second determination sub-module 1003, it is configured as according to the corresponding relation between default pavement behavior and coefficient of friction, will be with institute
State the coefficient of friction that the corresponding coefficient of friction of pavement behavior is defined as between the wheel and track.
Figure 11 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.Such as figure
Shown in 11, the device 800 can also include it is following at least one：Output module 1101, it is configured as small in the coefficient of friction
In default coefficient of friction threshold value, or when the braking distance is more than the safe distance corresponding with the speed, output is used
The prompting message of speed is reduced in prompting user；Second control module 1102, it is configured as by the thick of the surface of vehicle
In the case that rough degree increases to maximum, when the braking distance is still greater than the safe distance corresponding with the speed, reduce
Speed.
Alternatively, the first control module 803 can be configured as controlling at least one anti-slip part to stretch out, to increase car
The degree of roughness of wheel surface.
Figure 12 is a kind of block diagram of the device of control vehicle safe driving according to another exemplary embodiment.Such as figure
Shown in 12, the first control module 803 can include：3rd determination sub-module 1201, it is configured to rub according to
Coefficient or the distance between the braking distance and the safe distance difference are wiped, it is determined that the quantity of anti-slip part to be stretched out, wherein,
The quantity of the anti-slip part to be stretched out and the range difference are proportionate variation relation, with the negatively correlated change of the coefficient of friction
Change relation；4th determination sub-module 1202, it is configured as according to the quantity of anti-slip part to be stretched out and the multiple anti-
The distributing position in cunning portion, it is determined that anti-slip part to be stretched out；Control submodule 1203, it is configured as to be stretched out anti-skidding described in control
Is stretched out in portion
Alternatively, the anti-slip part can be anti-skid stud.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
The disclosure also provides a kind of computer-readable recording medium, is stored thereon with computer program instructions, and the program refers to
The step of method for the control vehicle safe driving that the disclosure provides, is realized in order when being executed by processor.
Figure 13 is a kind of block diagram of the device 1300 of control vehicle safe driving according to an exemplary embodiment.Ginseng
According to Figure 13, device 1300 can include following one or more assemblies：Processing component 1302, memory 1304, electric power assembly
1306, multimedia groupware 1308, audio-frequency assembly 1310, the interface 1312 of input/output (I/O), sensor cluster 1314, and
Communication component 1316.
The integrated operation of the usual control device 1300 of processing component 1302, as data communicate.Processing component 1302 can wrap
Include one or more processors 1320 and carry out execute instruction, to complete to control all or part of of method of vehicle safe driving to walk
Suddenly.In addition, processing component 1302 can include one or more modules, the friendship being easy between processing component 1302 and other assemblies
Mutually.For example, processing component 1302 can include multi-media module, to facilitate between multimedia groupware 1308 and processing component 1302
Interaction.
Memory 1304 is configured as storing various types of data to support the operation in device 1300.These data
Example includes the instruction of any application program or method for being operated on device 1300.Memory 1304 can be by any class
The volatibility or non-volatile memory device or combinations thereof of type are realized, such as static RAM (SRAM), electricity
Erasable Programmable Read Only Memory EPROM (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory
(PROM), read-only storage (ROM), magnetic memory, flash memory, disk or CD.
Electric power assembly 1306 provides electric power for the various assemblies of device 1300.Electric power assembly 1306 can include power management
System, one or more power supplys, and other components associated with generating, managing and distributing electric power for device 1300.
Multimedia groupware 1308 is included in the screen of one output interface of offer between described device 1300 and user.
In some embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel,
Screen may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch and passed
Sensor is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or slip be dynamic
The border of work, but also detect the duration and pressure related to the touch or slide.In certain embodiments, it is more
Media component 1308 includes a front camera and/or rear camera.When device 1300 is in operator scheme, mould is such as shot
When formula or video mode, front camera and/or rear camera can receive outside multi-medium data.Each preposition shooting
Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio-frequency assembly 1310 is configured as output and/or input audio signal.For example, audio-frequency assembly 1310 includes a wheat
Gram wind (MIC), when device 1300 is in operator scheme, during such as logging mode or speech recognition mode, microphone is configured as connecing
Receive external audio signal.The audio signal received can be further stored in memory 1304 or via communication component 1316
Send.In certain embodiments, audio-frequency assembly 1310 also includes a loudspeaker, for exports audio signal.
I/O interfaces 1312 provide interface, above-mentioned peripheral interface module between processing component 1302 and peripheral interface module
It can be click on taking turns, button etc..These buttons may include but be not limited to：Volume button, start button and locking press button.
Sensor cluster 1314 includes one or more sensors, and the state for providing various aspects for device 1300 is commented
Estimate.For example, sensor cluster 1314 can detect opening/closed mode of device 1300, the relative positioning of component, such as institute
The display and keypad that component is device 1300 are stated, sensor cluster 1314 can be with detection means 1300 or device 1,300 1
The position of individual component changes, the existence or non-existence that user contacts with device 1300, the orientation of device 1300 or acceleration/deceleration and dress
Put 1300 temperature change.Sensor cluster 1314 can include proximity transducer, be configured in no any physics
The presence of object nearby is detected during contact.Sensor cluster 1314 can also include optical sensor, as CMOS or ccd image are sensed
Device, for being used in imaging applications.In certain embodiments, the sensor cluster 1314 can also include acceleration sensing
Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 1316 is configured to facilitate the communication of wired or wireless way between device 1300 and other equipment.Dress
The wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof can be accessed by putting 1300.It is exemplary at one
In embodiment, communication component 1316 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel
Information.In one exemplary embodiment, the communication component 1316 also includes near-field communication (NFC) module, to promote short distance
Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 1300 can be by one or more application specific integrated circuits (ASIC), numeral
Signal processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for performing control vehicle safe driving
Method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 1304 of instruction, above-mentioned instruction can be performed by the processor 1320 of device 1300 to complete to control vehicle safety
The method of traveling.For example, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM),
CD-ROM, tape, floppy disk and optical data storage devices etc..
Those skilled in the art will readily occur to other embodiment party of the disclosure after considering specification and putting into practice the disclosure
Case.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or adaptability
Change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure or usual skill
Art means.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following claim
Point out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (16)
- A kind of 1. method for controlling vehicle safe driving, it is characterised in that methods described includes：Coefficient of friction between the speed and wheel and track of acquisition vehicle；According to the speed and the coefficient of friction, the braking distance of vehicle is calculated；It is less than default coefficient of friction threshold value, or the braking distance more than corresponding with the speed in the coefficient of friction Safe distance when, increase the degree of roughness of wheel surface.
- 2. according to the method for claim 1, it is characterised in that the friction obtained between the wheel and track Coefficient, including：Obtain the Weather information of vehicle position；According to the corresponding relation between default Weather information and coefficient of friction, by the friction system corresponding with the Weather information Number is defined as the coefficient of friction between the wheel and track.
- 3. according to the method for claim 1, it is characterised in that the friction obtained between the wheel and track Coefficient, including：Obtain the track image of camera shooting；According to the pavement behavior of track described in the track image recognition；According to the corresponding relation between default pavement behavior and coefficient of friction, by the friction system corresponding with the pavement behavior Number is defined as the coefficient of friction between the wheel and track.
- 4. according to the method for claim 1, it is characterised in that methods described also include it is following at least one：It is less than default coefficient of friction threshold value, or the braking distance more than corresponding with the speed in the coefficient of friction Safe distance when, export for prompt user reduce speed prompting message；In the case where the degree of roughness of the surface of vehicle is increased into maximum, when the braking distance still greater than with the car During the corresponding safe distance of speed, speed is reduced.
- 5. according to the method any one of claim 1-4, it is characterised in that the wheel surface is provided with multiple stretch The anti-slip part of contracting；The degree of roughness of the increase wheel surface, including：At least one anti-slip part is controlled to stretch out, to increase the degree of roughness of wheel surface.
- 6. according to the method for claim 5, it is characterised in that at least one anti-slip part of control is stretched out, including：According to the coefficient of friction or the distance between the braking distance and the safe distance difference, it is determined that to be stretched out is anti-skidding The quantity in portion, wherein, the quantity of the anti-slip part to be stretched out and the range difference are proportionate variation relation, with the friction The negatively correlated variation relation of coefficient；According to the distributing position of the quantity of the anti-slip part to be stretched out and the multiple anti-slip part, it is determined that to be stretched out is anti- Cunning portion；Anti-slip part to be stretched out is stretched out described in control.
- 7. according to the method for claim 5, it is characterised in that the anti-slip part is anti-skid stud.
- 8. a kind of device for controlling vehicle safe driving, it is characterised in that described device includes：Acquisition module, be configured as obtain vehicle speed and wheel and track between coefficient of friction；Computing module, it is configured as, according to the speed and the coefficient of friction, calculating the braking distance of vehicle；First control module, be configured as being less than default coefficient of friction threshold value in the coefficient of friction, or the brake away from During from more than the safe distance corresponding with the speed, increase the degree of roughness of wheel surface.
- 9. device according to claim 8, it is characterised in that the acquisition module includes：First acquisition submodule, it is configured as obtaining the Weather information of vehicle position；First determination sub-module, it is configured as according to the corresponding relation between default Weather information and coefficient of friction, will be with institute State the coefficient of friction that the corresponding coefficient of friction of Weather information is defined as between the wheel and track.
- 10. device according to claim 8, it is characterised in that the acquisition module includes：Second acquisition submodule, it is configured as obtaining the track image of camera shooting；Submodule is identified, is configured as the pavement behavior of the track according to the track image recognition；Second determination sub-module, it is configured as according to the corresponding relation between default pavement behavior and coefficient of friction, will be with institute State the coefficient of friction that the corresponding coefficient of friction of pavement behavior is defined as between the wheel and track.
- 11. device according to claim 8, it is characterised in that described device also include it is following at least one：Output module, it is configured as being less than default coefficient of friction threshold value in the coefficient of friction, or the braking distance is big When the safe distance corresponding with the speed, the prompting message for prompting user to reduce speed is exported；Second control module, it is configured as in the case where the degree of roughness of the surface of vehicle is increased into maximum, when described When braking distance is still greater than the safe distance corresponding with the speed, speed is reduced.
- 12. according to the device any one of claim 8-11, it is characterised in that the wheel surface be provided with it is multiple can Flexible anti-slip part；First control module is configured as controlling at least one anti-slip part to stretch out, to increase wheel table The degree of roughness in face.
- 13. device according to claim 12, it is characterised in that first control module includes：3rd determination sub-module, it is configured as according between the coefficient of friction or the braking distance and the safe distance Range difference, it is determined that the quantity of anti-slip part to be stretched out, wherein, quantity and the range difference of the anti-slip part to be stretched out are in just Associated change relation, with the negatively correlated variation relation of the coefficient of friction；4th determination sub-module, it is configured as according to the quantity of anti-slip part to be stretched out and the multiple anti-slip part Distributing position, it is determined that anti-slip part to be stretched out；Control submodule, it is configured as anti-slip part to be stretched out described in control and stretches out.
- 14. device according to claim 12, it is characterised in that the anti-slip part is anti-skid stud.
- A kind of 15. device for controlling vehicle safe driving, it is characterised in that including：Processor；For storing the memory of processor-executable instruction；Wherein, the processor is configured as：Coefficient of friction between the speed and wheel and track of acquisition vehicle；According to the speed and the coefficient of friction, the braking distance of vehicle is calculated；It is less than default coefficient of friction threshold value, or the braking distance more than corresponding with the speed in the coefficient of friction Safe distance when, increase the degree of roughness of wheel surface.
- 16. a kind of computer-readable recording medium, is stored thereon with computer program instructions, it is characterised in that the programmed instruction The step of method any one of claim 1-7 is realized when being executed by processor.
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| CN201710643589.0A CN107499074A (en) | 2017-07-31 | 2017-07-31 | Control the method, apparatus and storage medium of vehicle safe driving |
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| CN201710643589.0A CN107499074A (en) | 2017-07-31 | 2017-07-31 | Control the method, apparatus and storage medium of vehicle safe driving |
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