Autonomous Driving Kit Interface With Active Safety Intervention
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Solution Overview
Problem
Autonomous driving systems in vehicles cannot continue if an abnormality occurs in the functions of the autonomous driving kit.
Innovation Solution
A vehicle equipped with an interface unit to communicate with an autonomous driving kit and an active safety device that evaluates the driving performance of the kit based on deviation from reference travel data, intervening to prevent collisions and ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an autonomous driving kit is used to provide control instructions for autonomous driving, then autonomous driving functionality is achieved, but the system cannot continue operating if an abnormality occurs in the kit
Solution Approach 1:
The active safety device serves as an intermediary between the autonomous driving kit and the vehicle control system. It monitors the kit's output instructions and intervenes when abnormalities are detected, preventing faulty instructions from reaching the vehicle control units. This mediator approach allows the system to maintain safety and continuity even when the autonomous driving kit experiences abnormalities.
Solution Approach 2:
The system implements beforehand cushioning by evaluating the reliability of instructions from the autonomous driving kit before they are executed. The active safety device assesses whether output instructions fall within expected ranges and predetermined conditions, cushioning against potential harmful effects of abnormal instructions before they can cause system failures or safety issues.
2Measurement precision
If the active safety device evaluates driving performance based on deviation from reference travel data, then abnormality detection capability is improved, but system complexity increases
Solution Approach 1:
The active safety device implements feedback by continuously comparing the actual travel data from sensors with reference travel data stored in memory. This feedback mechanism enables precise abnormality detection through deviation evaluation, while the feedback loop is managed through straightforward comparison logic that balances detection precision with system simplicity.
Solution Approach 2:
The system applies preliminary action by pre-storing reference travel data in memory before actual driving operations. This preliminary preparation of reference data allows the active safety device to perform efficient real-time comparisons without complex calculations during operation, reducing computational complexity while maintaining detection precision.
Data Source
AI summary
The vehicle is configured to be able to communicate with an autonomous driving kit configured to be detachable from the vehicle, and includes an interface unit that gives a control instruction related to automated driving control to each unit of the vehicle based on an instruction from the autonomous driving kit, and an active safety device that realizes a preventive safety function of the vehicle. The active safety device includes performance evaluation unit for evaluating the driving performance of the autonomous driving kit based on the degree of deviation between the reference traveling data in the area in which the vehicle is traveling and the traveling data of the vehicle.