Automatic Driving Activation Control via V2V Speed Compatibility
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Solution Overview
Problem
Existing highly automatic or fully automatic driving systems for motor vehicles face challenges in ensuring road safety and obstacle-free navigation at high speeds, particularly when vehicles ahead are traveling at significantly different speeds or are not equipped with communication technology, limiting the reliability and range of automatic driving functions.
Innovation Solution
A method and apparatus that utilize vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication to determine the position, speed, and direction of surrounding vehicles, evaluating their speeds relative to the ego vehicle's speed range, and activating or blocking the automatic driving function based on compatibility, ensuring the route ahead is negotiable and obstacle-free.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If highly automatic or fully automatic driving function is activated at high speed, then productivity and operational efficiency are improved, but road safety and reliability deteriorate due to inability to ensure obstacle-free navigation when vehicles ahead travel at significantly different speeds
Solution Approach 1:
The system performs preliminary evaluation of driving data from vehicles ahead before activating the automatic driving function. By assessing speed compatibility, distance, and direction of travel in advance through V2V/V2I communication, the system ensures that activation only occurs when conditions are safe and suitable for high-speed automatic operation, thereby maintaining both productivity and reliability.
2Measurement precision
If vehicle-to-vehicle and vehicle-to-infrastructure communication is used to evaluate surrounding vehicles, then measurement precision and reliability of speed assessment are improved, but device complexity increases due to additional communication systems and data processing requirements
Solution Approach 1:
The communication system serves multiple functions: it collects driving data from vehicles ahead, assesses speed compatibility, determines direction of travel, and evaluates overall suitability for automatic driving activation. By making the communication infrastructure multi-functional, the system achieves high measurement precision without proportionally increasing complexity, as the same communication channels and processing mechanisms handle multiple assessment tasks simultaneously.
3Reliability
If activation is approved only when vehicles ahead are within prescribed speed range, then road safety and reliability are improved, but adaptability and operational flexibility worsen due to restrictions on when automatic driving can be activated
Solution Approach 1:
The system dynamically adjusts the assessment parameters based on current driving conditions. By evaluating multiple parameters including speed range, distance to vehicles ahead, and direction of travel, and by adapting the activation decision to the specific situation, the system maintains high safety standards while preserving operational flexibility. The prescribed speed range and other criteria are not fixed thresholds but adaptable parameters that respond to real-time traffic conditions.
Data Source
AI summary
A method and apparatus for controlling a highly automatic or fully automatic driving function of a motor vehicle that is traveling. The method and apparatus determines the position, speed and direction of travel of the motor vehicle; receives driving data from further vehicles surrounding the motor vehicle; evaluates the received driving data from the further vehicles with respect to position and direction of travel to ascertain vehicles that are traveling ahead; compares the vehicle speeds of the ascertained vehicles that are traveling ahead with a prescribed speed range based on the speed of the motor vehicle; approves or prevents activation of the highly automatic or fully automatic driving function based on the speeds of the vehicles that are traveling ahead.