Driving Assistance Steering Suppression for Secondary Collision Risk
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Solution Overview
Problem
Existing driving assistance systems increase the likelihood of collisions with objects other than the primary target during automatic steering maneuvers to avoid a primary collision, as they do not account for secondary targets on the avoidance steering route.
Innovation Solution
A driving assistance device that includes a primary target determination unit, a secondary determination region setting unit, and a secondary target determination unit to identify and avoid secondary targets on the avoidance steering route, suppressing automatic steering if a secondary target is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic steering is executed to avoid collision with the primary target, then collision avoidance with the primary target is achieved, but the likelihood of collision with secondary targets on the avoidance route increases
Solution Approach 1:
The system performs preliminary detection and determination of secondary targets in the avoidance route before executing the avoidance steering maneuver. By identifying potential secondary targets in advance and evaluating collision risk, the system can suppress avoidance steering when secondary targets are present, thereby preventing new collision risks while maintaining primary target avoidance capability
Solution Approach 2:
The system continuously monitors the avoidance route for secondary targets and uses this feedback information to adjust the avoidance steering execution. When secondary targets are detected in the avoidance route, the system suppresses the avoidance steering maneuver, creating a closed-loop control that adapts to dynamic environmental conditions
2Object-affected harmful factors
If avoidance steering is suppressed when secondary targets are present, then collision risk with secondary targets is reduced, but collision avoidance response time increases
Solution Approach 1:
The system performs preliminary determination of secondary targets and collision risk assessment in parallel with primary target detection, so that when avoidance steering is needed, the decision can be made quickly based on pre-evaluated information about the avoidance route
Data Source
AI summary
A driving assistance device provides driving assistance for avoiding a collision between an own vehicle and an object around the own vehicle, based on detection information on the object. The driving assistance device includes: a primary target determination unit that, based on the detection information, determines an object to be a primary target of which a collision with the own vehicle is to be avoided; a secondary determination region setting unit that, based on the detection information, sets a secondary determination region in which to determine an object to be a secondary target of which a collision with the own vehicle is to be avoided on an avoidance steering route of the own vehicle for avoiding a collision with the primary target; a secondary target determination unit that, based on the detection information, determines an object to be the secondary target in the secondary determination region; and a steering assistance unit that provides steering assistance to the own vehicle. The steering assistance unit suppresses avoidance steering of the own vehicle if the primary target determination unit determines that the primary target exists and the secondary target determination unit determines that the secondary target exists.