Driving Response-Time Control for Manual Deviation Detection
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Solution Overview
Problem
Existing driving control technologies face challenges in ensuring accuracy during manual driving due to assumptions of a common reaction time for both host and target vehicles, and they fail to account for manual deviations from standard driving operations, leading to potential inaccuracies in safety restrictions.
Innovation Solution
A processing method that detects manual deviations and outputs an acceptable response time based on a safety model compliant with a driving policy, allowing for specific reaction time settings during manual driving, and also considers the reaction time of target vehicles following the host vehicle under automated driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common reaction time is assumed for both host and target vehicles, then the driving control system is simplified, but the accuracy of safety restrictions deteriorates
Solution Approach 1:
The patent segments the reaction time parameter into vehicle-specific components, assigning separate reaction time values to the host vehicle and target vehicle based on their respective driving states (manual or automated). This segmentation allows the system to maintain simplicity while improving accuracy by using differentiated parameters rather than a common assumption.
Solution Approach 2:
The patent applies local quality by tailoring the reaction time parameter to specific vehicles and driving conditions. Each vehicle's reaction time is determined based on its own driving state (manual or automated), allowing the safety model to reflect local characteristics of each vehicle's response behavior rather than applying a uniform global parameter.
2Device complexity
If manual deviations from standard driving operations are not accounted for, then the safety model remains simple, but the reliability of driving control deteriorates
Solution Approach 1:
The patent incorporates preliminary action by pre-defining standard driving operations and manually specified deviations from these standards. The safety model is configured in advance to recognize and account for these deviation patterns, allowing the system to reliably adjust safety restrictions when deviations occur without requiring complex real-time analysis of novel behaviors.
3Measurement precision
If separate reaction times for manual and automated driving are implemented, then the accuracy of response time calculation improves, but the device complexity increases
Solution Approach 1:
The patent applies dynamics by making the reaction time parameter adaptive to the current driving state. The system dynamically selects appropriate reaction time values based on whether the host vehicle or target vehicle is in manual or automated driving mode, allowing the safety model to maintain high accuracy while managing complexity through state-based parameter selection rather than complex calculations.
Data Source
AI summary
A processing method, implemented by at least one processor, includes: detecting a manual deviation between a driver's manual operation and a driver's standard operation when the host moving body is under manual-driving; and storing an acceptable response time for the host moving body. The acceptable response time is a response time during which the host moving body is allowed to respond while the manual deviation is generating. The acceptable response time is acquired based on a safety model that is a model in compliance with a driving policy and is formed by modeling a safety of intended functionality.