Drive Support Device Level-Based Driver Evaluation
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Solution Overview
Problem
Conventional safe driving diagnosis systems fail to accurately evaluate a driver's contribution to vehicle operation when a drive support device provides high-level driving assistance, as they uniformly consider frequent activation of driving support functions as a high accident risk, regardless of the support level, leading to unfair downgrading of driver evaluations.
Innovation Solution
A drive support device that records and tracks the level of driving support executed by position and time, allowing for precise evaluation of the driver's contribution, while maintaining privacy by separating the evaluation result from the vehicle's situation information, and adjusting the evaluation based on the duration and necessity of driving support levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driving support functions are activated frequently to improve vehicle safety, then vehicle safety is improved, but driver evaluation is downgraded unfairly
Solution Approach 1:
The patent segments the evaluation process by introducing driving support level classification (Levels 0-4). Instead of treating all driving support activations uniformly, the system divides them into distinct levels where higher levels (indicating greater automation and driver disengagement) are weighted differently in the evaluation. This segmentation allows the system to recognize when safety interventions occur at higher support levels and adjust the driver evaluation accordingly, preventing unfair downgrading.
2Ease of operation
If driving support level is increased to reduce driver workload, then driver contribution decreases, but conventional systems still evaluate driver negatively
Solution Approach 1:
The patent changes the evaluation parameters by incorporating driving support level as a weighting factor. When driving support operates at higher levels (indicating the driver has transferred control), the system adjusts the evaluation parameters to reflect reduced driver contribution. This parameter change allows the evaluation to accurately represent the driver's actual involvement while still maintaining safety monitoring, thereby resolving the contradiction between reduced workload and accurate evaluation.
3Loss of information
If all vehicle information is recorded for comprehensive evaluation, then evaluation completeness is improved, but storage capacity is wasted
Solution Approach 1:
The patent extracts and records only the essential information needed for accurate driver evaluation: driving support level, activation timing, and position data. Instead of storing all vehicle information, the system selectively extracts the critical parameters that directly relate to driver contribution assessment. This extraction approach maintains evaluation completeness by capturing the necessary data points while significantly reducing storage requirements by excluding redundant information.
Data Source
AI summary
A drive support device includes a vehicle information obtainment unit configured to obtain vehicle information including a plurality of driving support levels provided by the drive support device installed in a vehicle, and a position of the vehicle or time; and a vehicle information recording unit configured to record the vehicle information obtained by the vehicle information obtainment unit on a vehicle information storage unit. The vehicle information recording unit records the position of the vehicle or the time, and the driving support level executed at the position of the vehicle or the time, on the vehicle information storage unit.