Intelligent networked four-wheel independent steering and independent driving electric vehicle emergency obstacle avoidance system

Abstract

The invention discloses an intelligent networked four-wheel independent steering and independent driving electric vehicle emergency obstacle avoidance system, and aims to improve the obstacle avoidance capability of the electric vehicle by utilizing a vehicle-to-vehicle interaction technology. According to the obstacle avoidance system, different obstacle avoidance modes can be switched according to the risk degree of collision between the vehicle and a front obstacle under three conditions, namely normal functions, partial function obstacles and function failure, of the vehicle-to-vehicle interaction module carried by the vehicle. The vehicle can receive motion information of other vehicles through the vehicle-to-vehicle interaction module so as to make a more reasonable obstacle avoidance decision; other vehicles can also receive warning information sent by the vehicle, and favorable conditions are created for obstacle avoidance of the vehicle. Particularly, under the emergency condition that the vehicle cannot avoid collision through braking measures, the emergency obstacle avoidance system receives path planning information of other vehicles through the vehicle-to-vehicle interaction module, and judges whether the possibility of lane changing obstacle avoidance exists through a decision module, so that the collision risk is further reduced.

Description

technical field [0001] The invention belongs to the field of intelligent networked automobile safety, relates to vehicle active anti-collision technology, and specifically relates to an intelligent networked four-wheel independent wire-controlled steering and independent wire-controlled drive electric vehicle emergency obstacle avoidance system, which uses vehicle-to-vehicle information interaction technology to improve The obstacle avoidance ability of the car, and then improve the driving safety of the car. Background technique [0002] With the continuous maturity of vehicle industry technology, vehicles are used in all aspects of human production and life. Vehicle driving requirements and road conditions are becoming more and more complex, which puts forward higher requirements for the design of vehicle structure and control strategy. Therefore, a new type of four-wheel independent steering independent drive vehicle is proposed. Compared with traditional vehicles, it ha...

AI Technical Summary

Problems solved by technology

At present, the existing emergency obstacle avoidance system based on four-wheel independent steering and independently driven electric vehicles has the following problems: 1) Only when the vehicle is in the adjacent lanes on both sides of the vehicle and there are no other vehicles, will the lane change obstacle avoidance measures be considered , failed to consider the possibility of changing lanes and avoiding obstacles when there are other vehicles driving in the adjacent lane; 2) The decision-making module of the vehicle only obtains relevant information from the perception module of the vehicle to select the obstacle avoidance measures, and fails to consider the impact of the surrounding traffic conditions on The impact of obstacle avoidance safety; therefore, when taking obstacle avoidance measures, there is still a greater risk

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