Automatic Driving System Reliability Comparison
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Solution Overview
Problem
Existing automatic driving systems face challenges in resuming automatic driving control after deactivation, particularly when the reliability of the first travel plan is lower than the second travel plan, leading to user dissatisfaction and reduced user-friendliness.
Innovation Solution
An automatic driving system that compares the reliability of two travel plans, executing automatic driving control based on the first travel plan when its reliability is equal to or higher than the second, and avoiding resumption on the second travel plan when its reliability is lower, allowing for driver-permitted resumption based on the first travel plan, and determining compatibility with driving habits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the automatic driving control is resumed based on the second travel plan after deactivation, then the driver takeover time is extended, but the reliability of the travel plan decreases
Solution Approach 1:
The system performs preliminary evaluation of travel plan reliability before resuming automatic driving control. By assessing whether the first travel plan's reliability is equal to or higher than the second travel plan's reliability in advance, the system ensures that only reliable plans are executed, preventing resumption based on unreliable plans while still allowing sufficient time for driver takeover when conditions are met.
2Speed
If the automatic driving control is resumed based on the first travel plan when its reliability is lower than the second, then the system responsiveness is improved, but the safety and reliability deteriorate
Solution Approach 1:
The system implements a feedback mechanism that continuously monitors and compares the reliability of the first and second travel plans. Based on this feedback, the system intelligently determines whether to resume automatic driving control with the first travel plan or switch to manual driving, ensuring that responsiveness is maintained only when safety conditions are satisfied.
3Ease of operation
If the system allows flexible resumption based on driver permission, then the user-friendliness is improved, but the control complexity increases
Solution Approach 1:
The system dynamically adjusts its control mode based on real-time reliability assessment and driver input. When the first travel plan's reliability is sufficient, the system allows flexible resumption upon driver permission for enhanced user-friendliness. When reliability is insufficient, the system automatically maintains manual driving mode, simplifying the control logic by removing the need for complex decision-making in unsafe conditions.
Data Source
AI summary
An automatic driving system includes an electronic control unit. The electronic control unit is configured: to create a first travel plan of a vehicle based on a position of the vehicle, an environment surrounding the vehicle, and a state of the vehicle; to calculate a first reliability of the first travel plan; to create a second travel plan of the vehicle based on one or two of the position of the vehicle, the environment surrounding the vehicle, and the state of the vehicle; to calculate a second reliability of the second travel plan; and to start the automatic driving control such that the vehicle travels based on the first travel plan when the first reliability of the first travel plan is equal to or higher than the second reliability of the second travel plan.