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A system and control method for avoiding undesired steering

An unexpected, steering torque technology, applied in the field of functional safety analysis, can solve the problem of inability to guarantee the accurate communication of steering request signals, reduce vehicle speed, and limit steering angle requests, and meet the design performance requirements of reliable, guaranteed communication, and avoid unexpected steering. Harmful effect

Active Publication Date: 2022-07-05
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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  • A system and control method for avoiding undesired steering
  • A system and control method for avoiding undesired steering
  • A system and control method for avoiding undesired steering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] According to the first embodiment, 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 processing policy module for defining undesired steering 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 analyzing vehicle functional safety.

Embodiment 2

[0058] Based on the first embodiment, the control module includes a perception module, a controller, a human-machine interface, and an execution system, wherein,

[0059] The perception module collects information on the external environment of the running vehicle through multiple sensors, and then transmits the collected signals to the controller; the controller transmits control information to the human-machine interface by acquiring the perception information; the human-machine interface performs The interaction and exchange of information, and then receive the information transmitted by the controller, convert the information through the human-machine interface, and then feed back the instructions to the controller. 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 item-level failure, vehicle failure mode, scenario, severity, exposure, and controllability;

[0062] The failure at the relevant item level indicates an undesired steering torque request; the vehicle failure mode indicates an undesired steering of the vehicle; the scene consists of normal light intensity, good weather conditions, and the vehicle is driving normally on the highway at a speed of 60-120kph , the curvature of the curve is normal, when the automatic driving function is turned on, the driver releases his hands but concentrates, and the vehicle performs unexpected steering; the severity indicates that the vehicle speed is high, and unexpected steering occurs, causing the vehicle to become unstable and roll over; The degree of exposure represents the highway scene; the degree of controllability represents ...

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Abstract

The invention discloses a system and a control method for avoiding undesired steering. The system is specifically a control module for acquiring external information of a running vehicle and transmitting the information; a software processing strategy module for limiting undesired steering hazards, which is used for The functional safety concept derivation module for diagnosing whether the lane information is covered according to the external information of the driving vehicle is a software strategy module for analyzing the functional safety of the vehicle; the present invention avoids the undesired steering hazards of the automatic driving function through the functional safety design method; From an angle, formulate corresponding strategies to eliminate unreliable function restriction strategies at the functional level.

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 growth of network security information scale, 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. The application of big data technology in vehicle network security analysis is discussed in terms of storage, retrieval, analysis, etc. Security analysis means that at any time a product or system must consider security issues, and potential hazards or the possibility of human errors should be found through analysis. sex. [0003] Traditional vehicles cannot predict the potential danger ahead when driving at high speed, so they cannot ...

Claims

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Application Information

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Patent Type & Authority Patents(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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