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Collision accident active prevention and control system and method based on vehicle-road cooperation

A collision accident and vehicle-road coordination technology, which is applied to the traffic control system, anti-collision system, and traffic control system of road vehicles. Safety, collision avoidance effect

Pending Publication Date: 2022-08-05
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above method considers the weather factors to realize the speed guidance of road traffic flow, it ignores the active speed control measures when the individual vehicle driver does not drive according to the guidance speed, and cannot guarantee the effective anti-collision of the vehicle when entering the foggy or icy road section.

Method used

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  • Collision accident active prevention and control system and method based on vehicle-road cooperation
  • Collision accident active prevention and control system and method based on vehicle-road cooperation
  • Collision accident active prevention and control system and method based on vehicle-road cooperation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] Example 1: The road ahead is the icing scene

[0138] 1. The vehicle is the active prevention and control system of the present invention and the vehicle of the type I AEBS

[0139] like Figure 4 It is shown, assuming that the vehicle is on the normal section The speed is driving at a constant speed, and the length in front of the vehicle is In the freezing section, the length of the B point B from point A when the vehicle is driving to point A. The length of point B is 200m. Point C is located in the freezing section. The length of point B of the road section is 200m.

[0140] Calculate the maximum braking slowdown of the vehicle to the freezing section:

[0141]

[0142] In the formula:

[0143] Set the slope of the freezing section = 0, and the average pavement attachment coefficient is ,Pick It

[0144] Calculate Essence

[0145] Calculate the maximum safety of the vehicle into the freezing section:

[0146] Based on the effective perception distance, maximum bra...

Embodiment 2

[0174] Example 2: The road ahead is the fog scene scene

[0175] 1. Assuming that the vehicle is a active prevention and control system for the present invention and a type I AEBS.

[0176] like Image 6 It is shown, assuming that the vehicle is on the normal section The speed is driving at a constant speed, and the length in front of the vehicle is The fog road section, the fog concentration of this section is moderate, and the effective perception of the vehicle is 50m. Set the length of the vehicle to point A from point A. The length of point B at the beginning of the fog section is 200m. Point C is located in the foggy section. The length is 50m.

[0177] Let's set the maximum braking slowdown of the vehicle to ensure that the vehicle is not rolled. Essence

[0178] Based on the effective perception distance, maximum braking speed, and maximum safety of the speed of the fog road section, establish a sports model, thereby calculating the maximum safety of the vehicle into the...

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Abstract

The invention provides a collision accident active prevention and control system and method based on vehicle-road cooperation. The active prevention and control system comprises a vehicle-mounted unit, a road side unit and an active prevention and control unit. The road side unit sends front road information to the vehicle-mounted unit, after receiving the road information, the vehicle-mounted unit calculates the maximum safe driving-in speed of a vehicle driving into the road section and dynamically calculates the early warning distance before the vehicle drives into the road section according to the vehicle speed, and the intervention condition of the active prevention and control system is determined by comparing the actual distance with the early warning distance. And if the system detects that an obstacle exists in front, the AEBS is started to execute corresponding speed reduction measures, so that effective collision avoidance of the vehicle on the road section is ensured, and the driving safety is ensured.

Description

Technical field [0001] The present invention involves an active prevention and control system and method based on the collision accident of vehicle and roads, which belongs to the field of intelligent auxiliary driving technology. Background technique [0002] In recent years, the total mileage of road transportation in my country has continued to increase, and the incidence of traffic accidents has also increased year by year. The collision accidents caused by the fog and the freezing of the road often cause major consequences such as group death and group injuries. On the one hand, the road attachment coefficient is reduced when the vehicle is driving to the Dogo Road section, or the road attachment coefficient is reduced when driving to the icing section. Because the heavy fog and the road of ice -bearing car are not detected, the ADVANCED EMERGENCY Braging System is not detected. AEBS) cannot fully play a role; on the other hand, the driver's emergency braking because the dri...

Claims

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Application Information

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IPC IPC(8): G08G1/048G08G1/052G08G1/0967G08G1/16B60W30/09B60W40/06
CPCG08G1/048G08G1/052G08G1/096725G08G1/096783G08G1/16B60W30/09B60W40/06B60W2555/20Y02A90/10
Inventor 李文亮李华建周炜曹琛站琦
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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