Vehicle active collision avoidance method adopting sensor fusion

A sensor and vehicle technology, applied to vehicle components, external condition input parameters, control devices, etc., can solve problems such as missing target obstacles, failure of active collision avoidance methods, and prone to false alarms

Active Publication Date: 2018-10-19
NANJING HK POWER SYST TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing active collision avoidance methods are prone to false alarms during vehicle cornering and steering, and are pro

Method used

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  • Vehicle active collision avoidance method adopting sensor fusion
  • Vehicle active collision avoidance method adopting sensor fusion
  • Vehicle active collision avoidance method adopting sensor fusion

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] The present invention provides a vehicle active collision avoidance method based on the sensor fusion method, such as figure 1 As shown, it includes the following steps: Step 1: Obtain the vehicle's own driving information and environmental information.

[0046] The CCD industrial camera can be installed in the middle of the front windshield of the vehicle, obtain the curvature information of the lane line according to the image collected by the camera, and transmit the curvature of the lane line in front of the vehicle to the electronic control unit ECU; the millimeter wave radar is installed at the front bumper of the vehicle, It is used to obtain the obstacle information in front of the vehicle; the current driving state information of the vehicle is obtained by using the vehicle CAN bus, and the vehicle driving state information inc...

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Abstract

The invention discloses a vehicle active collision avoidance method adopting sensor fusion. The vehicle active collision avoidance method comprises the steps that 1, vehicle travelling information andenvironmental information are obtained; 2, front barriers are classified by combining the vehicle travelling information with lane line information, and the barriers on an expectant travelling routeare screened; 3, information of the barriers obtained in the step 2 is selected, and barrier information having a threat to travelling of a current vehicle is obtained; 4, linear regression predictionis utilized to be combined with sensor information to weight the information of the barriers ahead the vehicle; 5, the braking pressure required by the vehicle is calculated by synthesizing the step4 and the vehicle travelling state information; and 6, the steps 1 to 5 are repeated until the vehicle speed is zero or until a system is shut down. According to the vehicle active collision avoidancemethod, by utilizing weighting processing of linear regression estimation and sensor measurement information, TTC safety distance model and an expected braking acceleration double-margin model, the defect that target barriers are lost when a vehicle body pitches can be eliminated, and the vehicle adapts to active collision avoidance under different speed work conditions better.

Description

technical field [0001] The invention relates to a modeling method for vehicle dynamic emergency longitudinal collision avoidance, belonging to the technical field of driving safety. Background technique [0002] With the rapid growth of car ownership, road traffic safety has become an important issue of concern to governments and societies in various countries. According to a survey by the U.S. National Highway Safety Commission (NHTSA), about 90% of road traffic fatal accidents are caused by driver error, while only about 3% are caused by vehicle failure. The development of advanced vehicle active safety systems is an urgent need for modern road traffic. The important link in the vehicle active safety system is the research and development of the vehicle's active collision avoidance method. The existing active collision avoidance methods are prone to false alarms during vehicle cornering and steering, and are prone to lose target obstacles when the vehicle body pitches, r...

Claims

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Application Information

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IPC IPC(8): B60W30/095B60W30/09
CPCB60W30/09B60W30/0953B60W30/0956B60W2552/30B60W2554/00B60W2554/801B60W2710/182
Inventor 袁朝春翁烁丰何友国孙晓强张厚忠
Owner NANJING HK POWER SYST TECH CO LTD
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