Intelligent self-adaptive cruise function control method based on safety and reliability consideration

Abstract

The invention provides an intelligent self-adaptive cruise function control method based on safety and reliability consideration. A cruise default speed setting module, a speed limiting information obtaining module and a cruise speed control module are included. A driver sets an initial cruise expected speed through the cruise default speed setting module, namely, the cruise default speed, and the initial cruise expected speed is used as a reference value of a follow-up expected speed; the speed limit information acquisition module comprises a video speed limit acquisition unit and a navigation speed limit acquisition unit, the video speed limit acquisition unit detects a speed limit value of a road speed limit sign through a camera to acquire speed limit information, and the navigation speed limit acquisition unit is used for extracting the speed limit information detected by a navigation system. The intelligent self-adaptive cruise function control method based on safety and reliability consideration has the advantages that road speed limit sign information and navigation speed limit information can be obtained at the same time, speed limit information errors caused by road speed limit sign shielding or wrong recognition are avoided as much as possible, and the function reliability is improved.

Description

technical field [0001] The invention belongs to the field of vehicle active safety control, and in particular relates to an intelligent self-adaptive cruise function control method based on safety and reliability considerations. Background technique [0002] With the continuous improvement of automobile technology in recent years, the advanced driving assistance (ADAS) function of passenger cars has become increasingly mature, and the new car evaluation regulations issued by various countries in the world have made certain requirements for ADAS functions. In the latest version of the new car evaluation regulations released by the European Union in 2020, corresponding test requirements are put forward for the Intelligent Adaptive Cruise Control (iACC) function. The iACC function is the adaptive cruise (Adaptive Cruise Control, ACC) function with speed limit assistance. That is, the vehicle can obtain the road speed limit value, and use the speed limit value as a reference for...

AI Technical Summary

Problems solved by technology

[0003] The current adaptive cruise function expected speed update strategy and vehicle cruise control method have the following shortcomings: (1) The traditional ACC function needs to manually adjust the expected speed, and iACC can recognize the road speed limit sign, which generally requires the driver to press the button Confirm that the driver operates more frequently; (2) The speed limit information currently used for the iACC function only relies on the road speed limit signs recognized by the vehicle's front-view camera. Wrong speed limit information; (3) After the iACC function updates the expected cruise speed according to the speed limit information, after the speed limit value increases (higher than the initial set cruise speed), the expected cruise speed cannot automatically return to the initial set cruise speed, and the driver needs to Step by step adjustment by the speed + / - button, the operation is more inconvenient

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