Driving Support Apparatus Uncertain Target Recognition
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Solution Overview
Problem
Existing driving support apparatuses fail to maintain stable vehicle behavior when a deceleration target, such as a red traffic light, is no longer recognized during automatic deceleration, leading to unstable vehicle behavior.
Innovation Solution
A driving support apparatus equipped with a recognition processor to identify deceleration targets and a supporter to maintain the preceding support state if the recognition becomes uncertain, continuing deceleration support until specific system removal conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving support apparatus stops providing deceleration support when the deceleration target is no longer recognized, then the system responds to changing conditions, but the vehicle behavior becomes unstable
Solution Approach 1:
The system performs preliminary action by maintaining the preceding support state when recognition becomes uncertain, rather than immediately stopping support. This anticipates potential re-recognition and prevents unstable vehicle behavior by keeping the support state active during the uncertainty period.
Solution Approach 2:
The system applies beforehand cushioning by using the uncertain recognition state as a transitional buffer. Instead of making an abrupt change from supported to unsupported state, the system maintains the preceding support state during uncertainty, cushioning against sudden vehicle behavior changes.
2Stability of the object's composition
If the driving support apparatus maintains deceleration support when the deceleration target is no longer recognized, then vehicle behavior remains stable, but the system cannot adapt to new conditions
Solution Approach 1:
The system applies dynamics by making the support state conditional on recognition certainty. The supporter maintains the preceding support state only when recognition is uncertain, and can transition to ending support when recognition is confidently lost. This dynamic adjustment ensures both stability during uncertainty and appropriateness when recognition is clear.
Solution Approach 2:
The system uses feedback from the recognizer about recognition certainty to control the supporter's behavior. The supporter monitors the recognition state and adjusts the deceleration support accordingly, maintaining support when uncertain and potentially ending it when recognition is confidently lost, ensuring appropriate response to actual conditions.
3Ease of operation
If the system immediately ends deceleration support when recognition is lost, then the system is simple to control, but vehicle behavior becomes unstable
Solution Approach 1:
The system performs preliminary action by maintaining the preceding support state during the uncertain recognition period. This simple rule—maintain support when uncertain, end support when confidently lost—provides straightforward control logic while preventing instability that would result from immediate termination.
Solution Approach 2:
The system applies beforehand cushioning by introducing an intermediate uncertain state that buffers the transition from supported to unsupported. This cushioning layer simplifies control by providing a clear decision point (certain loss of recognition) while preventing the instability that would occur with immediate termination.
Data Source
AI summary
A driving support apparatus is provided with: a recognizer configured to obtain information indicating a surrounding environment of a host vehicle, and configured to recognize a deceleration required target, which is a target that requires deceleration of the host vehicle; and a supporter configured to perform a driving support operation for supporting the deceleration of the host vehicle, on condition that the deceleration required target is recognized by the recognizer. If a recognition situation, which is recognized by said recognizer, of the deceleration required target that causes the driving support operation to be performed becomes uncertain while performing the driving support operation, said supporter is configured to maintain a preceding operating state of the driving support operation, which is an operating state immediately before the recognition situation becomes uncertain.