CN110626325A - Vehicle emergency braking method, device and system - Google Patents
Vehicle emergency braking method, device and system Download PDFInfo
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- CN110626325A CN110626325A CN201910883235.2A CN201910883235A CN110626325A CN 110626325 A CN110626325 A CN 110626325A CN 201910883235 A CN201910883235 A CN 201910883235A CN 110626325 A CN110626325 A CN 110626325A
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- emergency braking
- adhesion coefficient
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The invention discloses a vehicle emergency braking method, device and system. Wherein, the method comprises the following steps: sending the position parameters to a vehicle cloud platform to obtain an attachment coefficient; and determining the braking deceleration according to the adhesion coefficient, and performing emergency braking according to the braking deceleration. According to the technical scheme of the embodiment of the invention, the accurate attachment coefficient is obtained on the vehicle cloud platform through the vehicle position parameter, so that the accuracy of the attachment coefficient calculation is improved, the time for determining the attachment coefficient by the vehicle is shortened, the error of the braking speed is reduced, and the safety of vehicle running can be improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of computer application, in particular to a vehicle emergency braking method, device and system.
Background
With the development of cloud computing technology, the cloud computing technology is more and more applied to the aspects of life, wherein a vehicle cloud platform is an important embodiment of applying cloud computing to the field of automobiles, and the vehicle cloud platform further improves the safety and comfort of the automobiles. In the automotive field, the emergency braking function of a vehicle is an important guarantee for the safety of the lives and properties of drivers.
In the prior art, when a vehicle encounters an emergency, an emergency braking system is automatically activated, and a controller determines the required braking deceleration through a road adhesion coefficient. In the existing road adhesion coefficient estimation method, a vehicle body and wheels of a vehicle are measured and monitored, and the adhesion coefficient on the road is estimated according to the parameter change of the vehicle, but the method needs the vehicle to travel in the road for a certain distance to obtain a more accurate adhesion coefficient, but once a dangerous condition occurs in the process, the adhesion coefficient is not accurately obtained, the braking and deceleration speed error determined by the vehicle according to the adhesion coefficient is large, and the potential safety hazard exists during the vehicle traveling.
Disclosure of Invention
The invention provides a vehicle emergency braking method, device and system, which are used for accurately acquiring a road adhesion coefficient and improving the driving safety of a vehicle.
In a first aspect, an embodiment of the present invention provides a vehicle emergency braking method, which is applied to a vehicle, and includes:
sending the position parameters to a vehicle cloud platform to obtain an attachment coefficient;
and determining the braking deceleration according to the adhesion coefficient, and performing emergency braking according to the braking deceleration.
In a second aspect, an embodiment of the present invention further provides a vehicle emergency braking method, which is applied to a vehicle cloud platform, and the method includes:
determining a corresponding attachment coefficient according to the position parameter of the target vehicle;
and sending the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
In a third aspect, an embodiment of the present invention further provides a vehicle emergency braking device, which is applied to a vehicle, and includes:
the coefficient acquisition module is used for sending the position parameters to the vehicle cloud platform to acquire the attachment coefficient;
and the braking deceleration module is used for determining braking deceleration according to the adhesion coefficient and carrying out emergency braking according to the braking deceleration.
In a fourth aspect, an embodiment of the present invention further provides a vehicle emergency braking device, which is applied to a vehicle cloud platform, and the device includes:
the coefficient determining module is used for determining a corresponding attachment coefficient according to the position parameter of the target vehicle;
and the coefficient sending module is used for sending the adhesion coefficient to the target vehicle so as to brake the target vehicle according to the adhesion coefficient.
In a fifth aspect, an embodiment of the present invention further provides a vehicle emergency braking system, including: the vehicle and the vehicle cloud platform are used for realizing the vehicle emergency braking method in any embodiment of the invention.
According to the technical scheme of the embodiment of the invention, the position parameter is sent to the vehicle cloud platform to obtain the adhesion coefficient, the braking speed is determined according to the adhesion coefficient, and emergency braking is carried out according to the braking speed, so that the accuracy of obtaining the adhesion coefficient is improved, the determination time of the adhesion coefficient is reduced, and the potential safety hazard of the vehicle in the driving process is solved.
Drawings
FIG. 1 is a flowchart illustrating steps of a method for emergency braking of a vehicle according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a method for emergency braking of a vehicle according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a method for emergency braking of a vehicle according to a third embodiment of the present invention;
FIG. 4 is a flowchart illustrating steps of a method for emergency braking of a vehicle according to a fourth embodiment of the present invention;
FIG. 5 is a diagram illustrating an emergency braking method for a vehicle according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a vehicle emergency braking device according to a fifth embodiment of the invention;
fig. 7 is a schematic structural diagram of a vehicle emergency braking device according to a sixth embodiment of the invention;
fig. 8 is a schematic structural diagram of a vehicle emergency braking system according to a seventh embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only a part of the structures related to the present invention, not all of the structures, are shown in the drawings, and furthermore, embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Example one
Fig. 1 is a flowchart of steps of a vehicle emergency braking method according to an embodiment of the present invention, where the embodiment is applicable to a situation where a vehicle performs emergency braking, and the method may be executed by a vehicle emergency braking device, and the device may be implemented in a hardware and/or software manner. Referring to fig. 1, the following steps may be specifically included in general:
step 101, sending the position parameters to a vehicle cloud platform to obtain an attachment coefficient.
The position parameters can be that the position information of the vehicle comprises information such as longitude and latitude or altitude and the like, can be acquired by a positioning module arranged in the vehicle, the vehicle cloud platform can be a cloud server, data calculation and vehicle data interaction can be carried out, the adhesion coefficient can be the ratio of the adhesive force to the normal pressure of the vehicle tire, the static friction coefficient between the tire and the road surface can be used for representing, and the larger the adhesion coefficient of the road and the vehicle is, the less the vehicle is easy to slip.
Specifically, the vehicle cloud platform can be prestored with the attachment coefficient, different roads can correspond to different attachment coefficients, when the vehicle needs to acquire the attachment coefficient, the position parameter of the position where the vehicle is located can be sent to the vehicle cloud platform, and the vehicle cloud platform can determine the corresponding attachment coefficient according to the position parameter and send the corresponding attachment coefficient to the vehicle. Further, in the embodiment of the invention, when the vehicle can arrive at a new road, the position parameter of the vehicle can be sent to the cloud platform to obtain the adhesion coefficient, the adhesion coefficient can be stored in the vehicle, and when the emergency braking situation is met, the emergency braking can be directly carried out according to the stored adhesion coefficient.
And 102, determining the braking deceleration according to the adhesion coefficient, and carrying out emergency braking according to the braking deceleration.
The braking deceleration may be an acceleration determined by the vehicle based on an adhesion coefficient, which is opposite to the vehicle traveling direction, and the larger the braking deceleration is, the shorter the time for which the vehicle stops, and the larger the adhesion coefficient is, the larger the braking deceleration can be obtained when the vehicle outputs the same braking power.
In the embodiment of the present invention, when emergency braking is required, a braking deceleration may be determined according to the adhesion coefficient, and then the engine is controlled to output corresponding power according to the braking deceleration so as to make the vehicle perform emergency braking.
According to the technical scheme of the embodiment of the invention, the position parameter is sent to the vehicle cloud platform to obtain the adhesion coefficient, the braking deceleration is determined according to the adhesion coefficient, and emergency braking is carried out according to the braking deceleration, so that the accurate determination of the adhesion coefficient is realized, the acquisition time of the adhesion coefficient is reduced, the vehicle can acquire the accurate adhesion coefficient without driving for a period of time, and the driving safety performance of the vehicle is improved.
Example two
Fig. 2 is a flowchart of steps of a vehicle emergency braking method according to a second embodiment of the present invention, which is embodied based on the second embodiment of the present invention. Correspondingly, the method of the embodiment of the invention comprises the following steps:
step 201, sending road position parameters of all roads in a planned path to a vehicle cloud platform to obtain an attachment coefficient; and the attachment coefficient is determined by the vehicle cloud platform according to the road position parameters.
The planned path may be a driving path generated according to a departure position and a target position of a driver, the planned path may be generated by a navigation module of a vehicle, and the road may be a component of the planned path, or may be a road that the vehicle needs to pass through when reaching the target position.
In the embodiment of the invention, a driver can generate a planned path according to a demand, the planned path can be used for vehicle navigation, after the planned path is generated, roads of the planned path can be obtained, position parameters of each road can be generated to a vehicle cloud platform, and an adhesion coefficient corresponding to each road can be obtained.
Step 202, obtaining vehicle state parameters of the driving process to generate a monitoring adhesion coefficient.
The driving process can represent the driving process of the vehicle in the planned path, the vehicle state parameters can be information reflecting the driving state of the vehicle in the road, and can include parameters such as longitude and latitude, altitude, tire pressure, tire outline shape and the like, the vehicle state parameters can be used for determining an estimated adhesion coefficient of the road, and the monitored adhesion coefficient can be an adhesion coefficient estimated through the vehicle state parameters.
Specifically, when the vehicle travels according to the planned path, the vehicle may be monitored to obtain vehicle state parameters of a traveling state of the vehicle during the traveling process, for example, tire pressure, vehicle speed, and the like of vehicle tires, the adhesion coefficient may be generated according to the obtained vehicle state parameters, and the generated adhesion coefficient may be used as the monitored adhesion coefficient. Methods of generating the adhesion coefficient from the vehicle state parameter are many in the prior art, and may include, for example, analyzing the adhesion coefficient from noise between the tire and the ground, determining the adhesion coefficient from tire pressure variation, and the like.
And step 203, uploading the monitoring attachment coefficient to a vehicle cloud platform for storage.
The monitoring adhesion coefficient may be an adhesion coefficient of the vehicle and the current road estimated by the vehicle according to the driving state parameter.
In the embodiment of the invention, the vehicle can upload the acquired monitoring adhesion coefficient to the vehicle cloud platform, and the vehicle cloud platform stores the monitoring adhesion coefficient, and it can be understood that the monitoring adhesion coefficient in the vehicle cloud platform can be stored in association with a road, different roads can correspond to different monitoring adhesion coefficients, a plurality of vehicles can be driven in each road at the same time, the monitoring adhesion coefficient acquired by each vehicle can be stored in association with the road, and the road can correspond to a plurality of monitoring adhesion coefficients.
And step 204, searching for corresponding braking deceleration in a preset coefficient deceleration table according to the adhesion coefficient, and carrying out emergency braking according to the braking deceleration.
The preset coefficient deceleration table may be a correlation table of an adhesion coefficient and a braking deceleration pre-stored in the vehicle, the adhesion coefficient and the braking deceleration in the preset coefficient deceleration table may correspond to each other one by one, different adhesion coefficients may correspond to different braking decelerations, and a correspondence relationship between the adhesion coefficient and the braking deceleration may be determined through a test in a test yard.
Specifically, an adhesion coefficient deceleration table may be stored in the vehicle in advance, after the adhesion coefficient is obtained through the vehicle cloud platform, the corresponding brake deceleration may be looked up in the adhesion coefficient deceleration table according to the adhesion coefficient, and the vehicle may output the corresponding power according to the brake deceleration.
According to the technical scheme of the embodiment of the invention, the road position parameters of each road in the planned path are sent to the vehicle cloud platform to obtain the corresponding adhesion coefficient, the monitoring adhesion coefficient is generated according to the vehicle state parameters in the driving process and is uploaded to the vehicle cloud platform for storage, the corresponding guiding deceleration is searched in the preset coefficient deceleration table according to the adhesion coefficient, and emergency braking is carried out, so that the accuracy of obtaining the adhesion coefficient is improved, the necessary driving length for obtaining the adhesion coefficient is reduced, the potential safety hazard of vehicle driving is eliminated, and the safety of the vehicle is improved.
EXAMPLE III
Fig. 3 is a flowchart of steps of a vehicle emergency braking method according to a third embodiment of the present invention, where the method is applicable to a situation where a vehicle performs emergency braking, and the method may be implemented by a vehicle emergency braking device, and the device may be implemented in a hardware and/or software manner. Referring to fig. 3, the following steps may be specifically included in general:
and 301, determining a corresponding attachment coefficient according to the position parameter of the target vehicle.
The target vehicle may be a vehicle needing to obtain an adhesion coefficient, or a vehicle driving into a new road, the position parameter may be a parameter representing a geographical position of the target vehicle, and may be a parameter such as longitude, latitude, altitude and the like of the target vehicle, the adhesion coefficient may be an adhesion coefficient of the target vehicle and the road where the target vehicle is located, and may be used to represent the braking capability of the target vehicle, and when the vehicle outputs the same power, the larger the adhesion coefficient is, the stronger the braking capability of the vehicle is.
Specifically, the position parameters uploaded by the target vehicle can be acquired, the corresponding attachment coefficients can be searched according to the position parameters, it can be understood that the position parameters and the corresponding attachment coefficients can be stored in the vehicle cloud platform in advance, and the corresponding attachment coefficients can be acquired according to the position parameters.
And step 302, sending the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
In the embodiment of the present invention, the adhesion coefficient may be sent to the target vehicle, and the target vehicle may perform emergency braking according to the adhesion coefficient.
According to the technical scheme of the embodiment of the invention, the corresponding attachment coefficient is determined according to the position parameter of the target vehicle, and the attachment coefficient is sent to the target vehicle so that the target vehicle brakes according to the attachment coefficient, so that the accurate determination of the attachment coefficient is realized, the determination time of the attachment coefficient is reduced, the driving distance required by the determination of the attachment coefficient is shortened, the error of the attachment coefficient when an emergency occurs is avoided, and the driving safety of the vehicle is improved.
Example four
Fig. 4 is a flowchart of steps of a vehicle emergency braking method according to a fourth embodiment of the present invention, which is embodied based on the foregoing embodiment of the present invention, and referring to fig. 4, the vehicle emergency braking method according to the embodiment of the present invention includes:
step 401, determining the road where the target vehicle is located according to the position parameter.
The road may be a current driving road of the target vehicle, and may be determined according to the location parameter of the target vehicle.
Specifically, the road where the target vehicle is currently located may be determined according to the location parameter of the target vehicle, for example, a road with the same longitude and latitude may be searched according to the longitude and latitude in the location parameter of the target vehicle, and the road may be determined as the road where the target vehicle is located.
And step 402, acquiring the monitoring adhesion coefficient of each vehicle in the road.
In the embodiment of the present invention, other vehicles may run on the road where the target vehicle is located, and the monitoring adhesion coefficients of the other vehicles on the road may be obtained, where the monitoring adhesion coefficients may be estimated and determined by each vehicle according to its own running state parameter, for example, the monitoring adhesion coefficients of the vehicle and the road are determined according to the tire pressure of the vehicle, the monitoring adhesion coefficients of each vehicle on the road may be uploaded to the vehicle cloud platform, and the monitoring adhesion coefficients uploaded by other vehicles on the same road may be obtained according to the road where the target vehicle is located.
And step 403, taking the average value of the monitoring adhesion coefficients as the adhesion coefficient of the target vehicle.
Specifically, the average value of each monitored adhesion coefficient of the corresponding road may be calculated in the vehicle cloud platform, and the average value may be used as the adhesion coefficient of the target vehicle. For example, an average value of monitoring adhesion coefficients of all vehicles in the road at the current time may be obtained in the vehicle cloud platform, and the obtained average value may be used as the adhesion coefficient between the target vehicle and the road at the current time.
And step 404, sending the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
In an embodiment of the present invention, the vehicle cloud platform may transmit the adhesion coefficient to the target vehicle, may determine a braking deceleration according to the adhesion coefficient by a controller of the target vehicle, and may output a corresponding power according to the braking deceleration, which may be in a direction opposite to a traveling direction of the target vehicle, so that the target vehicle achieves emergency braking.
And 405, acquiring a monitoring adhesion coefficient uploaded by the vehicle, and storing the monitoring adhesion coefficient.
Specifically, the vehicle may be a vehicle that establishes a connection with the vehicle cloud platform, and when the vehicle travels on each road, the monitoring adhesion coefficient generated according to the vehicle state parameter may be sent to the vehicle cloud platform, and the vehicle cloud platform may store the monitoring adhesion coefficient in association with the corresponding road, and wait for the target vehicle to obtain the adhesion coefficient.
According to the technical scheme of the embodiment of the invention, the road where the target vehicle is located is determined according to the position parameters, the monitoring adhesion coefficient of each vehicle in the road is obtained, the average value of each monitoring adhesion coefficient is determined as the adhesion coefficient, and the adhesion coefficient is sent to the target vehicle to brake the target vehicle, so that the emergency braking of the vehicle is realized, the accuracy of the adhesion coefficient is improved, the failure of the emergency braking of the vehicle caused by the overlarge error of the adhesion coefficient is prevented, and the running safety of the vehicle is improved.
For an exemplary illustration of a vehicle emergency braking method provided in fig. 5 according to a fourth embodiment of the present invention, referring to fig. 5, when a vehicle 51 travels on a road, an estimated monitored adhesion coefficient may be sent to a vehicle cloud platform 52 according to a travel state parameter, when a target vehicle 50 travels on a new road according to a travel path, a position parameter may be sent to the vehicle cloud platform 52, and the vehicle cloud platform 52 may determine an adhesion coefficient according to the uploaded monitored adhesion coefficient and send the adhesion coefficient to the target vehicle 50. If there are n vehicles 51 on the new road, the monitoring adhesion coefficient uploaded to the vehicle cloud platform is distributed asThe adhesion coefficient of the new road is
EXAMPLE five
Fig. 6 is a schematic structural diagram of a vehicle emergency braking device provided in the fifth embodiment of the present invention, which is capable of executing the vehicle emergency braking method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects of the execution method. The device can be realized by software and/or hardware, is applied to a vehicle, and specifically comprises: a coefficient acquisition module 501 and a brake deceleration module 502.
The coefficient obtaining module 501 is configured to send the position parameter to the vehicle cloud platform to obtain the attachment coefficient.
And the brake deceleration module 502 is used for determining brake deceleration according to the adhesion coefficient and carrying out emergency braking according to the brake deceleration.
According to the technical scheme of the embodiment of the invention, the position parameter is sent to the vehicle cloud platform through the coefficient acquisition module to acquire the adhesion coefficient, the braking deceleration module determines the braking deceleration according to the adhesion coefficient and carries out emergency braking according to the braking deceleration, so that the accurate determination of the adhesion coefficient is realized, the acquisition time of the adhesion coefficient is reduced, the vehicle can acquire the accurate adhesion coefficient without driving for a period of time, and the driving safety performance of the vehicle is improved.
Further, on the basis of the above embodiment of the present invention, the coefficient obtaining module includes:
the coefficient acquisition unit is used for sending the road position parameters of all roads in the planned path to the vehicle cloud platform to acquire the attachment coefficients; and the attachment coefficient is determined by the vehicle cloud platform according to the road position parameters.
Further, on the basis of the above embodiment of the invention, the braking deceleration module includes:
and the brake execution unit is used for searching the corresponding brake deceleration in the preset coefficient deceleration table according to the adhesion coefficient and carrying out emergency braking according to the brake deceleration.
Further, on the basis of the above embodiment of the invention, the method further includes:
the monitoring module is used for acquiring vehicle state parameters in the driving process to generate a monitoring adhesion coefficient;
and the uploading module is used for uploading the monitoring attachment coefficient to a vehicle cloud platform for storage.
EXAMPLE six
Fig. 7 is a schematic structural diagram of a vehicle emergency braking device provided in a sixth embodiment of the present invention, which is capable of executing a vehicle emergency braking method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. The device can be realized by software and/or hardware, is applied to the car cloud platform, specifically includes: a coefficient determination module 601 and a coefficient transmission module 602.
The coefficient determining module 601 is configured to determine a corresponding attachment coefficient according to the position parameter of the target vehicle.
And a coefficient sending module 602, configured to send the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
According to the technical scheme of the embodiment of the invention, the coefficient determining module is used for determining the corresponding attachment coefficient according to the position parameter of the target vehicle, and the coefficient sending module is used for sending the attachment coefficient to the target vehicle so as to brake the target vehicle according to the attachment coefficient, so that the accurate determination of the attachment coefficient is realized, the determination time of the attachment coefficient is reduced, the driving distance required by the determination of the attachment coefficient is shortened, the error of the attachment coefficient when an emergency occurs is avoided, and the driving safety of the vehicle is improved.
Further, on the basis of the above embodiment of the invention, the method further includes:
and the coefficient storage module is used for acquiring the monitoring adhesion coefficient uploaded by the vehicle and storing the monitoring adhesion coefficient.
Further, on the basis of the above embodiment of the present invention, the coefficient determining module includes:
and the road determining unit is used for determining the road where the target vehicle is located according to the position parameters.
And the coefficient acquisition unit is used for acquiring the monitoring adhesion coefficient of each vehicle in the road.
And the coefficient determining unit is used for taking the average value of the monitoring adhesion coefficients as the adhesion coefficient of the target vehicle.
EXAMPLE seven
Fig. 8 is a schematic structural diagram of a vehicle emergency braking system according to a seventh embodiment of the present invention, as shown in fig. 8, the system includes a vehicle 80 and a vehicle cloud platform 81, and each of the vehicle 80 and the vehicle cloud platform 81 may include a processor 800, a memory 801, an input device 802, and an output device 803; the number of the processors 800 in the vehicle 80 and the vehicle cloud platform 81 may be one or more, and one processor 800 is taken as an example in fig. 8; the processor 800, the memory 801, the input device 802, and the output device 803 in the vehicle 80 and the vehicle cloud platform 81 may be connected by a bus or other means, and fig. 8 illustrates an example of a connection by a bus.
The memory 801 may be used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program modules corresponding to the vehicle emergency braking method in the embodiment of the present invention (for example, the coefficient acquisition module 501 and the brake deceleration module 502 in the vehicle emergency braking apparatus or the coefficient determination module 601 and the coefficient transmission module 602 in the vehicle emergency braking apparatus). The processor 800 implements the above-described vehicle emergency braking method by executing software programs, instructions, and modules stored in the memory 801 to apply various functions of the vehicle emergency braking system and process data.
The memory 801 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 801 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 801 may further include memory located remotely from the processor 800, which may be connected to the vehicle 80 or the vehicle cloud platform 81 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 802 may be used to receive input numeric or character information and generate key signal inputs relating to user settings and function controls of the vehicle emergency brake system. The output device 803 may include a display device such as a display screen.
Example eight
An eighth embodiment of the present invention also provides a storage medium containing computer-executable instructions which, when executed by a computer processor, perform a method for emergency braking of a vehicle, the method comprising:
sending the position parameters to a vehicle cloud platform to obtain an attachment coefficient;
and determining the braking deceleration according to the adhesion coefficient, and performing emergency braking according to the braking deceleration.
Or determining a corresponding attachment coefficient according to the position parameter of the target vehicle;
and sending the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle emergency braking method provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the vehicle emergency braking device, the included units and modules are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A vehicle emergency braking method is characterized by being applied to a vehicle, and the vehicle emergency braking method comprises the following steps:
sending the position parameters to a vehicle cloud platform to obtain an attachment coefficient;
and determining the braking deceleration according to the adhesion coefficient, and performing emergency braking according to the braking deceleration.
2. The method of claim 1, wherein the sending the location parameters to a vehicle cloud platform to obtain the attachment coefficient comprises:
sending the road position parameters of each road in the planned path to a vehicle cloud platform to obtain an attachment coefficient;
and the attachment coefficient is determined by the vehicle cloud platform according to the road position parameters.
3. The method of claim 1, wherein determining a braking deceleration from the adhesion coefficient and performing emergency braking based on the braking deceleration comprises:
and searching the corresponding braking deceleration in a preset coefficient deceleration table according to the adhesion coefficient, and carrying out emergency braking according to the braking deceleration.
4. The method of claim 1, further comprising:
acquiring vehicle state parameters in the driving process to generate a monitoring adhesion coefficient;
and uploading the monitoring attachment coefficient to a vehicle cloud platform for storage.
5. The vehicle emergency braking method is applied to a vehicle cloud platform and comprises the following steps:
determining a corresponding attachment coefficient according to the position parameter of the target vehicle;
and sending the adhesion coefficient to the target vehicle so that the target vehicle brakes according to the adhesion coefficient.
6. The method of claim 5, further comprising:
and acquiring a monitoring adhesion coefficient uploaded by the vehicle, and storing the monitoring adhesion coefficient.
7. The method of claim 5, wherein determining the corresponding adhesion coefficient based on the location parameter of the target vehicle comprises:
determining the road where the target vehicle is located according to the position parameters;
acquiring a monitoring adhesion coefficient of each vehicle in a road;
and taking the average value of the monitoring adhesion coefficients as the adhesion coefficient of the target vehicle.
8. A vehicle emergency braking device, for application to a vehicle, the vehicle emergency braking device comprising:
the coefficient acquisition module is used for sending the position parameters to the vehicle cloud platform to acquire the attachment coefficient;
and the braking deceleration module is used for determining braking deceleration according to the adhesion coefficient and carrying out emergency braking according to the braking deceleration.
9. The utility model provides a vehicle emergency braking device which characterized in that is applied to car cloud platform, vehicle emergency braking device includes:
the coefficient determining module is used for determining a corresponding attachment coefficient according to the position parameter of the target vehicle;
and the coefficient sending module is used for sending the adhesion coefficient to the target vehicle so as to brake the target vehicle according to the adhesion coefficient.
10. A vehicle emergency braking system, comprising a vehicle and a vehicle cloud platform;
the vehicle for implementing the vehicle emergency braking method according to any one of claims 1 to 4;
the vehicle cloud platform is used for realizing the vehicle emergency braking method according to any one of claims 5 to 7.
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| CN201910883235.2A CN110626325A (en) | 2019-09-18 | 2019-09-18 | Vehicle emergency braking method, device and system |
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| CN201910883235.2A CN110626325A (en) | 2019-09-18 | 2019-09-18 | Vehicle emergency braking method, device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264597A (en) * | 2021-12-21 | 2022-04-01 | 盐城工学院 | Low-cost road adhesion coefficient determination method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670191A (en) * | 2015-02-09 | 2015-06-03 | 浙江吉利汽车研究院有限公司 | Automatic emergency braking method and device |
| CN104924872A (en) * | 2015-06-25 | 2015-09-23 | 厦门金龙联合汽车工业有限公司 | Air-conditioner control method based on vehicle networking technology |
| CN109219547A (en) * | 2016-06-07 | 2019-01-15 | Zf 腓德烈斯哈芬股份公司 | Method for estimating the probability distribution of the maximum friction coefficient at the current and/or following way point of vehicle |
| CN109801397A (en) * | 2018-12-28 | 2019-05-24 | 施帆 | A kind of car-mounted terminal and information interacting method based on information sharing |
-
2019
- 2019-09-18 CN CN201910883235.2A patent/CN110626325A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670191A (en) * | 2015-02-09 | 2015-06-03 | 浙江吉利汽车研究院有限公司 | Automatic emergency braking method and device |
| CN104924872A (en) * | 2015-06-25 | 2015-09-23 | 厦门金龙联合汽车工业有限公司 | Air-conditioner control method based on vehicle networking technology |
| CN109219547A (en) * | 2016-06-07 | 2019-01-15 | Zf 腓德烈斯哈芬股份公司 | Method for estimating the probability distribution of the maximum friction coefficient at the current and/or following way point of vehicle |
| CN109801397A (en) * | 2018-12-28 | 2019-05-24 | 施帆 | A kind of car-mounted terminal and information interacting method based on information sharing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264597A (en) * | 2021-12-21 | 2022-04-01 | 盐城工学院 | Low-cost road adhesion coefficient determination method and system |
| CN114264597B (en) * | 2021-12-21 | 2022-07-22 | 盐城工学院 | Low-cost road adhesion coefficient determination method and system |
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