Driving Assistance Apparatus Attention Control Logic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving assistance apparatuses incorrectly call attention to objects that are unlikely to cross the vehicle's path due to lack of consideration for available space, leading to driver inconvenience.
Innovation Solution
A driving assistance apparatus equipped with sensor devices and an electronic control unit that determines the likelihood of an object crossing the vehicle's path and assesses the availability of space in front of the vehicle, only calling attention when both conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the apparatus calls attention based only on predicted time periods without considering available space, then the attention calling function is simple and fast, but the accuracy of attention calling is reduced leading to driver inconvenience
Solution Approach 1:
The determination process is segmented into distinct steps: first determining whether an object is likely to cross the expected path based on time period predictions, then separately determining whether available space exists in front of the vehicle. This segmentation allows the system to maintain simplicity in each individual determination while achieving high accuracy through the combination of multiple determination results.
Solution Approach 2:
The system performs preliminary determination of object crossing likelihood before performing the space availability determination. This preliminary action establishes a foundation for the final attention calling decision, ensuring that both conditions (object crossing likelihood and space availability) are evaluated systematically to improve accuracy without excessive complexity.
2Reliability
If the apparatus calls attention whenever an object is predicted to cross the path, then the attention calling function is comprehensive, but unnecessary attention calls are generated reducing driver convenience
Solution Approach 1:
The system applies a cushioning condition by requiring both object crossing likelihood determination AND space availability determination to be positive before generating an attention call. This dual-condition requirement acts as a buffer against false positives, filtering out unnecessary attention calls while maintaining reliable detection of genuine hazards, thereby improving driver convenience without compromising safety.
3Measurement precision
If the apparatus only determines object crossing likelihood without assessing available space, then the system is simple and quick, but the determination accuracy is insufficient
Solution Approach 1:
The system performs a complete two-step determination process (object crossing likelihood + space availability) only when necessary, rather than continuously. This partial action approach ensures high determination accuracy by thoroughly evaluating both conditions when objects are detected, while avoiding excessive processing time for situations where no potential crossing objects exist, thus balancing accuracy with time efficiency.
Data Source
AI summary
A driving assistance apparatus includes a plurality of sensor devices mounted in a host vehicle, an attention calling device configured to call attention of a driver of the host vehicle, and at least one electronic control unit. The at least one electronic control unit acquires host vehicle information, acquires object information, estimates an expected path through which the host vehicle passes, determines whether or not a target object is present, determines whether or not there is a front space in front of the host vehicle based on the object information, generates a request signal so as to call attention of the driver of the host vehicle, forbids generation of the request signal when the electronic control unit determines that the target object is present, and that there is no front space, and controls the attention calling device to call attention of the driver.