Redundancy control method of automatic driving system, automatic driving system, automobile, controller and computer readable storage medium

A redundant control and automatic driving technology, which is applied in the field of automobiles, controllers and computer readable storage media, and automatic driving systems, can solve hardware or software failures and low calculation errors, high complexity of multi-sensor perception fusion systems, lane Line error recognition, etc.
CN112373477AActive Publication Date: 2021-02-19CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING CHANGAN AUTOMOBILE CO LTD
Publication Date
2021-02-19

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Abstract

The invention relates to a redundancy control method of an automatic driving system, the automatic driving system, an automobile, a controller and a computer readable storage medium, which are used for keeping running along the center line of a lane when the automatic driving system has a fault and the fault does not exceed tolerance. The method comprises the steps of: when an automatic driving function is activated, fitting a safe path equation enabling a vehicle to run along the center line of a lane according to information collected by a forward-looking camera and a radar, and determiningthe lane width of the lane where the vehicle is located currently; according to the coefficient of the safe path equation and the determined lane width, determining a current specific offset area of the vehicle; determining the current fault level of a main control subsystem according to the offset area where the vehicle is located and whether the vehicle activates the function of a first redundant safety control module in the previous control period or not; and activating the redundancy control function of the corresponding level according to the current fault level of the main control subsystem, and controlling the vehicle according to the redundancy control function of the corresponding level.
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Description

Technical field

[0001] The invention is used in the field of automobile automatic driving control and safety control, and specifically is a redundant control of an automatic driving system to maintain and decelerate the emergency lane of the vehicle when the sensor / main control subsystem / actuator is faulty and the fault is bounded. Method, automatic driving system, automobile, controller and computer readable storage medium.Background technique

[0002] The safety of a mid / high level (above 2.5 level) autopilot system depends on the correct output of each sensor. The front-view camera, which is the main sensor for lane keeping, is generally based on the deep learning system or the combination of deep learning system and classic image recognition technology. It is prone to lighting, alternating light and dark, road surface water reflection, and road slope. The lane markings and other factors affect the wrong recognition of the lane line, especially the curvature of the lane centerline. In ...

Claims

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