System for avoiding unexpected steering and control method thereof

An undesired and controller technology, which is applied in the system and control field to avoid undesired steering, can solve the problems of inability to ensure accurate communication of steering request signals, reduce vehicle speed, limit steering angle requests, etc., and achieve reliable design performance requirements and ensure communication , the effect of avoiding undesired steering hazards

Active Publication Date: 2021-06-08
CHINA AUTOMOTIVE INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional vehicles cannot predict the potential danger ahead when driving at high speed, so they cannot remind the driver to avoid or reduce the speed of the vehicle; they cannot formulate corresponding strategies from the perspective of safety and omit unreliable function restriction strategies at the functional level; they cannot guarantee automatic driving on expressways Functional safety-related steering request signal communication is accurate, and the steering request cannot be restricted; the steering angle request cannot be restricted when the restriction request is issued

Method used

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  • System for avoiding unexpected steering and control method thereof
  • System for avoiding unexpected steering and control method thereof
  • System for avoiding unexpected steering and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] According to Embodiment 1, a system for avoiding undesired steering is provided, including:

[0053] The control module is used to obtain the external information of the driving vehicle and transmit the information;

[0054] A software handling policy module for defining undesired diversion hazards;

[0055] The functional safety concept export module is used to diagnose whether the lane information is covered according to the external information of the driving vehicle;

[0056] Software policy module for analysis of vehicle functional safety.

Embodiment 2

[0058] On the basis of Embodiment 1, the control module includes a perception module, a controller, a man-machine interface and an execution system, wherein,

[0059] The perception module collects information on the external environment of the driving vehicle through multiple sensors, and then transmits the collected signal to the controller; the controller transmits control information to the man-machine interface by acquiring the perception information; the man-machine interface performs Interaction and exchange of information, and then receive the information transmitted by the controller, convert the information through the man-machine interface, and then feed back the instructions to the controller, and the man-machine interface sends execution commands to the execution system through the controller, and then adjusts the vehicle according to the environment. Driving route.

Embodiment 3

[0061] On the basis of Embodiment 1, the software processing strategy module includes scenario analysis and safety diagnosis, wherein the scenario analysis includes related item-level failure, vehicle failure mode, scenario, severity, exposure and controllability;

[0062] The failure at the related item level indicates an unexpected steering torque request; the vehicle failure mode indicates an unexpected steering of the vehicle; the scene is composed of normal light intensity and good weather conditions, and the vehicle is driving normally on the expressway at a speed of 60-120kph , the curvature of the curve is normal, and when the automatic driving function is turned on, the driver releases his hands but concentrates, and the vehicle performs an unexpected steering formation; The exposure degree above represents the highway scene; the controllability degree represents the driver's hands-off level; the scene analysis is as follows:

[0063]

[0064]

[0065] The safet...

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PUM

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Abstract

The invention discloses a system for avoiding unexpected steering and a control method thereof. The system specifically comprises a control module used for acquiring external information of a running vehicle and transmitting the information, a software processing strategy module used for limiting unexpected steering hazards, a functional safety concept export module used for diagnosing whether lane information is covered or not according to external information of a running vehicle, and a software strategy module used for analyzing functional safety of the vehicle. Through the function safety design method, the unexpected steering hazard of the automatic driving function is avoided; and corresponding strategies are formulated from the perspective of function safety, and unreliable function limitation strategies on the function level are omitted.

Description

technical field [0001] The invention relates to a functional safety analysis technology, in particular to a system and a control method for avoiding undesired steering. Background technique [0002] With the increase of the scale of network security information, the application of big data technology for vehicle network security analysis has become a research hotspot in the industry. Starting from the needs of vehicle network security analysis and the shortcomings of traditional technologies, the necessity of introducing big data analysis is analyzed. From the perspective of security data The application of big data technology in vehicle network security analysis is discussed in terms of storage, retrieval, analysis, etc.; security analysis refers to the need to consider security issues at any time for products or systems, and to discover potential hazards or the possibility of human errors through analysis. sex. [0003] Traditional vehicles cannot predict the potential da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/20B60W40/02B60W40/10B60W40/105B60W60/00
CPCB60W60/0015B60W40/02B60W40/105B60W40/10B60W10/20B60W2050/0002B60W2520/10B60W2552/53B60W2520/06B60W2710/202
Inventor 李丰军周剑光
Owner CHINA AUTOMOTIVE INNOVATION CORP
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