Driving Mode Switching Based on Rule-Compliant Vehicle Behavior
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Solution Overview
Problem
Existing systems struggle to seamlessly switch between automatic and manual driving modes without compromising safety and driver convenience, particularly due to inconsistencies in compliance with driving rules during transitions.
Innovation Solution
A vehicle driving switching device that determines compliance with driving rules by calculating responsibility values for both automatic and manual driving modes, allowing smooth transitions based on these values and driver readiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If switching between manual and automatic driving is allowed based on simple operation amount comparison, then switching ease is improved, but driving safety and rule compliance are worsened
Solution Approach 1:
The system performs preliminary evaluation of both manual and automatic driving characteristics against driving rules before allowing mode switching. The switching determination unit acquires driving rule determination information in advance and evaluates compliance conditions before permitting the transition, ensuring that switching only occurs when both modes meet safety and rule compliance requirements.
Solution Approach 2:
The system implements a feedback mechanism where the switching determination unit continuously monitors and evaluates driving rule compliance for both manual and automatic driving modes. Based on this evaluation feedback, the system dynamically determines whether mode switching is permitted, creating a closed-loop control that ensures ongoing safety and rule adherence during transitions.
2Reliability
If driving mode switching is restricted to ensure rule compliance, then driving safety is improved, but switching flexibility and driver convenience are worsened
Solution Approach 1:
The system dynamically adjusts switching permissions based on real-time evaluation of driving characteristics and rule compliance. Rather than imposing fixed restrictions, the switching determination unit flexibly determines whether switching is permitted by evaluating current driving conditions, manual driving characteristics, and automatic driving characteristics against driving rules, allowing maximum flexibility within safety boundaries.
3Reliability
If comprehensive driving rule evaluation is performed before switching, then switching safety is improved, but system complexity and processing time are worsened
Solution Approach 1:
The switching determination unit serves multiple functions: it evaluates manual driving characteristics against driving rules, evaluates automatic driving characteristics against driving rules, and determines switching permissions based on both evaluations. This multi-functional approach consolidates what could be separate complex systems into a single integrated unit, reducing overall system complexity while maintaining comprehensive safety evaluation.
4Reliability
If driving rule determination information is acquired and evaluated, then mode switching reliability is improved, but information processing load and response time are worsened
Solution Approach 1:
The system performs preliminary acquisition and evaluation of driving rule determination information before switching is requested. By evaluating compliance conditions in advance and storing the results, the system reduces the processing time required at the moment of switching, allowing rapid decision-making while maintaining comprehensive safety evaluation.
Data Source
AI summary
In a vehicle driving switching device, driving rule determination information under automatic driving is acquired which indicates a determination result of comparison between (i) a driving rule and (ii) an automatic driving characteristic being a characteristic of a host vehicle equipped with an automatic driving device when the host vehicle travels by the automatic driving on a travel path generated by the automatic driving device. The driving mode switching between an automatic driving mode and a manual driving mode is permitted based on condition that the driving rule determination information under the automatic driving indicates that the automatic driving characteristic complies with the driving rule.