Yield Amount Calculation for Vehicle Passing Safety
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Solution Overview
Problem
Existing driving assistance systems fail to accurately notify drivers of the yield amount required when passing oncoming vehicles, as they only adjust the passing position in the traveling direction and do not provide clear guidance on the necessary side movement.
Innovation Solution
A driving assistance system that includes a passing position prediction unit, a position detection unit, and a yield amount calculation unit to determine the precise yield amount by considering the widths of both vehicles and the road width, providing notifications to the driver on the required side movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deceleration control is performed to adjust the passing position in the traveling direction, then the vehicles can pass each other at a wider portion of the road, but the driver cannot clearly understand the extent of side movement required
Solution Approach 1:
The notification device acts as an intermediary between the passing position prediction device and the driver. It translates the calculated yield amount into visual or auditory information that the driver can easily understand, such as displaying the distance to the passing position or the required lateral movement amount, thereby resolving the information loss problem.
Solution Approach 2:
The patent replaces the mechanical deceleration control alone with an information-based notification system. Instead of only relying on physical deceleration to create passing space, the system substitutes part of the mechanical control with electronic calculation and visual/auditory notification to provide clear yield amount information to the driver.
2Device complexity
If only the passing position in the traveling direction is adjusted, then the system complexity remains low, but the driving assistance is insufficient in the road width direction
Solution Approach 1:
The passing position prediction device is enhanced to perform multiple functions: it not only predicts the passing position in the traveling direction but also calculates the yield amount in the road width direction. This multi-functionality allows the system to provide comprehensive driving assistance without adding separate complex subsystems.
Solution Approach 2:
The patent extends the prediction from one dimension (traveling direction) to two dimensions by adding the road width direction component. The system now provides information in both the longitudinal direction (distance to passing position) and the lateral direction (yield amount), enabling drivers to understand the complete passing maneuver requirements.
Data Source
AI summary
A yield amount of a vehicle is given notice of more accurately before two vehicles pass each other. In a driving assistance system, a yield amount calculation unit calculates a yield amount of a first vehicle on the basis of the width of the first vehicle, the width of a second vehicle, the current position of the first vehicle in the width direction detected by a first position detection unit, the passing position predicted by a passing position prediction unit, the road width at the passing position specified by a road width specification unit. The notification unit gives notice of the yield amount of the first vehicle at least in the first vehicle on the basis of the calculation result from the yield amount calculation unit.