Control method and device for preventing cut-in of intelligent vehicle

Abstract

Disclosed is a control method for preventing cut-in of an intelligent vehicle. The control method comprises the steps that the distance between the vehicle and a cut-in vehicle is detected; the relation between the distance between the vehicle and the cut-in vehicle and a safe vehicle following distance is obtained through comparing, and whether cut-in prevention control needs to be conducted or not is judged according to the comparing result; when cut-in prevention control needs to be conducted, change of the distance between the vehicle and the cut-in vehicle is calculated; a cut-in prevention control type needing to be conducted is determined according to the change of the distance between the vehicle and the cut-in vehicle; and a cut-in prevention control scheme is determined according to the cut-in prevention control type. Appropriate torque, braking and steering control responses of the vehicle can be made when other vehicles cut in a lane of the vehicle with the short distance, under the situation of avoiding risks such as collision, the unnecessary sudden braking response is avoided as far as possible, the vehicle keeps the safe-enough vehicle spacing with the cut-in vehicle, and the driving comfort and driving and taking experience of the intelligent vehicle under the cut-in situation are improved. The invention further provides a control device for preventing cut-in of the intelligent vehicle.

Description

technical field [0001] The invention relates to the technical field of smart car control, in particular to a control method and device for a smart car to prevent other cars. Background technique [0002] In the current smart car, the distance and speed information of the vehicle is generally detected by the on-board radar system. According to the current technical conditions, the distance information of the intruded vehicle detected by the vehicle radar system is relatively accurate, but the speed information of the intruded vehicle has certain errors, especially when the intruded vehicle has just entered the radar field of view or is not well within the field of view. There will be a relatively large speed detection error during regular movement. [0003] Since the current on-board radar system cannot accurately measure the speed of the intruding vehicle, especially when the vehicle enters the lane from other lanes, the irregular movement may cause a large error in the spe...

AI Technical Summary

Problems solved by technology

[0003] Since the current on-board radar system cannot accurately measure the speed of the intruding vehicle, especially when the vehicle enters the lane from other lanes, the irregular movement may cause a large error in the speed measurement of the intruding vehicle, and due to At present, the effective detection distance of on-board radar systems is not very far. At present, the fully automatic driverless cars developed by domestic and foreign enterprises or research institutes will either brake sharply or directly ignore the situation regardless of the situation. Slowing down or only slightly braking, this kind of response will not only make the occupant feel uncomfortable, but also pose a safety risk, that is, it is easy to be rear-ended by the car behind or collide with other vehicles

Images