Intersection Braking Control Using Corrected Turning Paths
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Solution Overview
Problem
Existing driving assistance systems may execute inappropriate emergency braking when an oncoming vehicle does not start turning right until it reaches close proximity to a vehicle turning right in an intersection, due to differing right-turn start timings between drivers.
Innovation Solution
A driving assistance device that includes a traveling environment recognizer, a predicted traveling path calculator, an oncoming-vehicle predicted traveling path calculator, a turning intention determiner, and a control target setter, which corrects predicted traveling paths to prevent overlap with oncoming-vehicle paths in intersections, thereby avoiding inappropriate emergency braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system calculates limit traveling paths to account for right-turn intentions, then braking accuracy is improved, but device complexity increases
Solution Approach 1:
The system applies local quality by implementing path correction only in specific scenarios where right-turn intentions are detected in intersections. Rather than universally complicating all path calculations, the limit traveling path correction is selectively applied where needed, maintaining simplicity in straightforward scenarios while enhancing accuracy in complex intersection situations
Data Source
AI summary
Traveling environment information is recognized. A predicted traveling path is calculated based on a driving condition of a vehicle. An oncoming-vehicle predicted traveling path is calculated based on behavior of an oncoming vehicle. It is determined whether the vehicle has an intention to enter a first intersecting road at an intersection. When the vehicle cannot enter the first intersecting road, the predicted traveling path is corrected to a limit traveling path. It is determined whether the oncoming vehicle has an intention to enter a second intersecting road at the intersection. When the oncoming vehicle cannot enter the second intersecting road, the oncoming-vehicle predicted traveling path is corrected to an oncoming-vehicle limit traveling path. The oncoming vehicle is set as a control target against which emergency braking is executed when the predicted traveling path and the oncoming-vehicle predicted traveling path overlap each other at least in part.