Driving Assistance Control for Turn-Signal Deceleration Anticipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional driving assistance devices fail to initiate automatic braking early enough when a preceding vehicle indicates a turn and then decelerates, leading to anxiety for vehicle occupants due to close proximity and unexpected deceleration.
Innovation Solution
A driving assistance device that uses sensors to detect a preceding vehicle's turn signal and impending deceleration, executing mild deceleration or acceleration suppression processes to maintain a safe distance, thereby reducing anxiety and ensuring comfortable vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional device waits to detect actual deceleration before performing automatic braking, then the braking action is triggered only when necessary, but the timing is too late causing occupant anxiety and potential close proximity to the preceding vehicle
Solution Approach 1:
The system performs preliminary action by detecting the turn signal activation of the preceding vehicle and anticipating upcoming deceleration before it actually occurs. When a turn signal is detected, the system proactively decelerates the own vehicle in advance, rather than waiting for the preceding vehicle's deceleration to be detected. This preliminary deceleration based on predictive cues (turn signal) resolves the timing issue and prevents occupant anxiety caused by late braking responses.
2Productivity
If the own vehicle maintains constant speed when the preceding vehicle is traveling at constant speed, then fuel efficiency is improved, but the distance between vehicles decreases leading to close proximity and occupant anxiety
Solution Approach 1:
The system applies preliminary action by detecting the turn signal of the preceding vehicle and proactively decelerating before the actual deceleration event occurs. This early detection and response mechanism maintains a safe distance between vehicles, preventing the close proximity that would otherwise cause occupant anxiety, while still allowing the own vehicle to operate efficiently at constant speed during normal following conditions.
3Reliability
If the conventional device performs automatic braking only when the preceding vehicle is decelerating, then false braking is avoided, but the response timing is delayed until the deceleration is already detected
Solution Approach 1:
The system performs preliminary action by using the turn signal as a predictive cue to anticipate upcoming deceleration. Instead of waiting for the preceding vehicle's deceleration to be detected, the system proactively decelerates in advance when a turn signal is detected. This maintains braking accuracy by only acting on reliable predictive cues while significantly reducing the response time delay inherent in conventional detection-based systems.
Data Source
AI summary
The processor controls the drive device and/or the braking device to execute either a mild deceleration process or an acceleration suppression process in the following situations:In the first specific scene (SCN1), where the own vehicle and the preceding vehicle PV are traveling on the leftmost lane or a left-turn lane of a general road composed of multiple lanes, or on a single-lane general road, and the turn signal of the preceding vehicle PV is indicating a left turn, while the preceding vehicle PV is not decelerating.In the second specific scene (SCN2), where the own vehicle and the preceding vehicle PV are traveling on the rightmost lane or a right-turn lane of a general road composed of multiple lanes, or on a single-lane general road, and the turn signal of the preceding vehicle PV is indicating a right turn, while the preceding vehicle PV is not decelerating.