阅读说明：本技术 车辆紧急制动方法、装置和系统 (Vehicle emergency braking method, device and system ) 是由 迟霆 王迪 刘涛 蒋鑫 王兴东 王新竹 程悦 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种车辆紧急制动方法、装置和系统。其中,该方法包括：将位置参数发送到车云平台以获取附着系数；根据附着系数确定制动减速度,并根据所述制动减速度进行紧急制动。本发明实施例的技术方案,通过车辆位置参数在车云平台获取准确附着系数,提高了附着系数计算的准确性,减少了车辆确定附着系数的时间,缩小了制动速度的误差,可提高车辆行驶的安全性。(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.)

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.

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.

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.