Semi-trailer blind area track early warning method and device for external environment

Abstract

The invention discloses a semi-trailer blind area track early warning method and device for an external environment, and relates to the technical field of vehicle driving safety, the semi-trailer blind area track early warning device is provided with four inner wheel difference coverage area mapping point positions of the left side of a tractor body, the left side of a semi-trailer body, the right side of the tractor body and the right side of the semi-trailer body, and each point position is provided with a front straight laser lamp and a rear straight laser lamp. The formed early warning device can greatly increase the turning early warning area, early warning is carried out on the path which is not passed by the semitrailer when the semitrailer turns, the response time of pedestrians or non-motor vehicles is prolonged, and potential safety hazards are greatly reduced. The early warning area of the device is based on real-time calculation of the turning inner wheel difference, and the early warning area is dynamically adjusted along with the vehicle driving state and is more accurate.

Description

technical field [0001] The invention relates to the technical field of vehicle driving safety, in particular to a semi-trailer blind spot trajectory warning method and device for the external environment. Background technique [0002] When the semi-trailer is turning, there is a large inner wheel difference due to the too long wheelbase, which poses a great safety hazard to pedestrians or non-motorized vehicles in the area covered by the inner wheel difference when driving. The main problems and defects of the current common turning warning devices are as follows: mainly to remind the driver, which is more common in the auxiliary reminder device or rearview mirror auxiliary control device in the car, and the early warning for external pedestrians or non-motor vehicles is not enough; the early warning system outside the car The warning range is limited to the current vehicle body length range (see figure 1 S1 area in the middle), unable to estimate the path to be passed (see...

AI Technical Summary

Problems solved by technology

[0002] When the semi-trailer is turning, there is a large inner wheel difference due to the long wheelbase, which poses a great safety hazard to pedestrians or non-motorized vehicles in the area covered by the inner wheel difference when driving.

The main problems and defects of the current common turning warning devices are as follows: mainly to remind the driver, which is more common in the auxiliary reminder device or rearview mirror auxiliary control device in the car, and the early warning for external pedestrians or non-motor vehicles is not enough; the early warning system outside the car The warning range is limited to the current vehicle body length (see Figure 1Middle S1 area), it is impossible to track the path to be passed (see Figure 1) play an early warning role; the coverage area of ​​the inner wheel difference on the outer side when the vehicle reverses and turns is not considered (see S3 area in Figure 1) early warning and reversing blind zone (see Figure 1 (S4 area) early warning

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