Driving Assistance Warning Control for Turn Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional surrounding monitoring devices fail to appropriately issue warnings about vehicles in the driving assistance area when a host vehicle turns, potentially leading to accidents or annoying the driver with unnecessary warnings.
Innovation Solution
A driving assistance device that issues warnings when another vehicle is present in the driving assistance area on the side of the host vehicle's intended turn, but suppresses warnings if the vehicle is estimated to leave the area before the turn, based on speed differences and turn operation timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a warning is issued about another vehicle in the driving assistance area when the host vehicle turns, then turn collision prevention is improved, but false warnings about vehicles that will leave the area cause driver annoyance
Solution Approach 1:
The system changes the warning issuance decision based on the relative speed parameter between the host vehicle and the other vehicle. When the host vehicle speed is higher than or equal to the other vehicle speed, the warning suppression condition is applied. This parameter-based decision-making resolves the contradiction by dynamically adjusting warning behavior according to the specific driving situation.
Solution Approach 2:
The system dynamically evaluates whether to issue a warning based on real-time conditions: the host vehicle's turning action, the presence of another vehicle in the blind area, and the speed relationship between vehicles. This dynamic adaptation allows the system to distinguish between dangerous situations requiring warnings and safe situations where warnings would be unnecessary, thereby preventing both collisions and false alarms.
2Object-affected harmful factors
If warnings are suppressed for vehicles leaving the driving assistance area, then driver annoyance is reduced, but warnings about vehicles that remain in the area may be missed
Solution Approach 1:
The system uses the speed difference parameter as a critical threshold for decision-making. By comparing host vehicle speed with other vehicle speed, the system determines whether to suppress warnings. This parameter-based approach ensures that warnings are suppressed only when the speed relationship indicates the other vehicle will naturally leave the blind area, maintaining warning accuracy while reducing false alarms.
Solution Approach 2:
The system continuously monitors the position and speed of other vehicles in the driving assistance area and adjusts warning issuance based on this feedback. By evaluating whether the other vehicle is moving faster or slower than the host vehicle, the system receives feedback about the vehicle's likely trajectory and makes informed decisions about warning necessity, balancing accuracy and annoyance reduction.
Data Source
AI summary
A driving assistance device for a vehicle is configured to at least issue a warning to the vehicle cabin when another vehicle around a host vehicle is in a driving assistance area that is set around the host vehicle and is on a side toward which the turn signal of the host vehicle is operated. The driving assistance device is also configured to suppress the warning when the other vehicle is estimated to leave the driving assistance area within a time required to turn right or left to the side toward which the turn signal is operated compared with when the other vehicle is estimated not to leave the driving assistance area when the speed of the host vehicle is equal to or higher than the speed of the other vehicle in the driving assistance area on the side toward which the turn signal of the host vehicle is operated.