Redundancy warning system and method for autonomous vehicle

Abstract

The invention relates to a redundancy warning system and method for an automatic driving vehicle. The system is suitable for an L3-level automatic driving vehicle. The system comprises a vehicle body controller L, a vehicle body controller R and an automatic driving controller. The automatic driving controller is connected with the vehicle body controller R through a CAN (Controller Area Network) line and is also connected with the vehicle body controller L through a redundant CAN line; the vehicle body controller L and the vehicle body controller R are connected through a CAN line; the vehicle body controller L controls the steering lamp through a hard wire, and the vehicle body controller R controls the brake lamp through a hard wire. The brake lamp and the steering lamp are connected to different controllers respectively, and the problem that when a single controller or a single link fails (including single-point failure and multi-point failure) in a traditional framework, the brake lamp or the steering lamp (double flash) cannot be lightened to warn a rear vehicle is solved.

Description

technical field [0001] The invention belongs to the technical field of automatic driving, and in particular relates to a redundant warning system and method for an automatic driving vehicle. Background technique [0002] In the traditional car architecture, the brake lights and turn signals used to warn the rear vehicle when parking are connected to the same controller, as shown in the appendix. figure 1 shown. In L3-level autonomous driving, if this architecture is still adopted, there are the following risks: (1) When the body controller fails, the brake lights and turn signals cannot be turned on to warn the vehicles behind; When the communication link of the body controller is disconnected, the braking and emergency information cannot be transmitted to the body controller; (3) When the automatic driving system controls the vehicle to stop, it is difficult to divide the responsibility for the traffic accident caused by the failure of the warning information. [0003] In...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a redundant warning system and method for an automatic driving vehicle, so as to avoid the problem that the warning light cannot be turned on when the automatic driving vehicle controller and the body controller fail

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