Autonomous Driving Performance Evaluation Using Vehicle Travel State
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Solution Overview
Problem
The performance of autonomous driving devices and applications, which are developed independently of the vehicle, is not transparent to the vehicle's control system, leading to potential safety risks due to unknown or varying performance levels.
Innovation Solution
The vehicle is equipped with a travel state sensor and processors to communicate with and evaluate the performance of autonomous driving devices or applications, calculating an evaluation value based on travel state information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the autonomous driving device is made independent and removably mountable on the vehicle, then the adaptability and versatility of the system is improved, but the reliability and safety control capability deteriorate due to lack of transparency in performance information
Solution Approach 1:
The patent implements a feedback mechanism where the vehicle control system receives performance information from the independent autonomous driving device, evaluates it against safety criteria, and adjusts control accordingly. This closed-loop feedback enables the system to maintain safety control capability while using removable, adaptable autonomous driving devices.
2Adaptability or versatility
If the autonomous driving device is developed by an independent developer, then the adaptability and market availability are improved, but the measurement precision and transparency of true performance deteriorate
Solution Approach 1:
The patent introduces an intermediary evaluation mechanism where the vehicle control system acts as a mediator between the independent autonomous driving device and the vehicle operation. This intermediary evaluates performance information from the autonomous driving device, providing transparency and precise measurement of actual performance without requiring the device to be developed by the original vehicle manufacturer.
3Device complexity
If the performance information of the autonomous driving device is not openly available, then the device complexity and security are improved, but the loss of information and ability to perform adequate control worsen
Solution Approach 1:
The patent segments information availability by type and purpose. Different levels of performance information are provided to different system components based on their security requirements and functional needs. This segmentation allows the system to maintain security while preventing information loss, as each segment receives only the information necessary for its specific function.
Data Source
AI summary
A vehicle includes: a travel state sensor configured to acquire information about a travel state of the vehicle; one or more processors; and a memory connected to the one or more processors and storing a plurality of instructions to be executed by the one or more processors. The instructions are configured to cause the one or more processors to: communicate with an autonomous driving device configured to calculate a target track for the vehicle; subject the vehicle to automated travel in accordance with the target track received from the autonomous driving device; and calculate an evaluation value of performance of the autonomous driving device based on the information acquired by the travel state sensor.