Automatic driving system

Abstract

The invention provides an automatic driving system which comprises the components of a first processing unit and a second processing unit. The first processing unit acquires current position information and first obstacle information, generates first decision-making result information and acquires state information; the second processing unit is used for acquiring second obstacle information, steering information and speed information and generating second decision-making result information; each piece of state information is compared with a preset mechanism, and when any piece of state information is different from all information in the preset mechanism and the difference value of the first decision-making result information and the second decision-making result information is within a preset threshold value, the first decision-making result information is marked as first credible information and stored; and when the difference value between the first decision-making result information and the second decision-making result information is not within the preset threshold value, planning parking is carried out according to the stored second credible information and the second decision-making result information, so that the safety of the automatic driving system is improved.

Description

technical field [0001] The invention relates to the field of automatic driving system design, in particular to an automatic driving system. Background technique [0002] With the rapid development of unmanned vehicle algorithms, theories and information technology, autonomous driving has gradually moved from the laboratory to the industry. New methods are constantly being proposed in the core technical fields of autonomous driving such as perception, positioning, decision-making, control, and software architecture. While new software algorithms and architectures expand the boundaries of capabilities, they pose major challenges to the safety of autonomous driving. [0003] Traditional automotive electronic and electrical systems ensure safety through functional safety systems, such as ISO26262. The system requires the designer to analyze all potential failures of the system software and hardware, and propose corresponding handling mechanisms. However, L3 and higher-level a...

AI Technical Summary

Problems solved by technology

First of all, whether the perception and decision-making subsystem works normally is judged by itself, as long as it sends a heartbeat normally, it will be executed, resulting in the safety of the entire system being limited by the perception and decision-making subsystem, which cannot meet the functional safety standards; secondly, the control subsystem can Some risks are identified through mmWave and ultrasound, but they cannot address every possible point of failure in the perception and decision subsystems

Third, due to the limited perception capabilities of millimeter waves and ultrasonic waves, once the perception and decision-making subsystem fails, the control system alone cannot achieve safe parking in complex environments; finally, even if subsequent technology breakthroughs are made, the perception and decision-making subsystem can achieve functional safety , and its certification cost is also higher

Images