Vehicle Control Switching Across Communication Interruption Sections
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Solution Overview
Problem
In environments where vehicle communication is challenging, such as autonomous driving, vehicles struggle to acquire sufficient information from preceding vehicles, affecting their control execution.
Innovation Solution
A vehicle communication system that sets communication established, interrupted, and absence sections on a map based on vehicle positions, allowing the vehicle control device to switch between system-driven and driver-driven controls accordingly, ensuring appropriate vehicle control based on the communication environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous driving control is executed in communication-challenging environments, then vehicle automation level is improved, but control reliability deteriorates due to insufficient information acquisition from preceding vehicles
Solution Approach 1:
The system dynamically switches between autonomous driving control and manual driving control based on communication environment quality. When communication is established, autonomous control is enabled; when communication is interrupted, the system transitions to manual control mode, making the control system adaptable to varying communication conditions rather than maintaining a fixed automation level
Solution Approach 2:
The system changes the control mode parameter based on communication status. By monitoring whether communication with preceding vehicles is established or interrupted, the system adjusts the degree of automation (from autonomous to manual) according to the available information quality, ensuring reliable operation across different communication scenarios
2Measurement precision
If system driven control is performed based on road condition information from communication, then vehicle control precision is improved, but system adaptability to communication environment deteriorates when communication is interrupted
Solution Approach 1:
The control system dynamically adapts its operation mode based on communication environment. It switches between system driven control (when communication is established and precise control is possible) and driver driven control (when communication is interrupted), making the system versatile across different communication conditions while maintaining control precision when conditions permit
Solution Approach 2:
The communication status acts as an intermediary condition that determines control mode selection. The system uses communication establishment/interruption status as a mediator to decide between high-precision system driven control and adaptive driver driven control, allowing the system to navigate between precision and adaptability requirements
3Productivity
If communication established sections are identified and system driven control is applied, then vehicle control efficiency is improved, but control system complexity increases due to section recognition and mode switching mechanisms
Solution Approach 1:
The system segments the travel route into communication established sections and other sections based on communication status. By dividing the control problem into distinct segments (communication available vs. not available), the system can apply appropriate control modes to each segment, improving overall efficiency while managing complexity through structured division of control scenarios
Solution Approach 2:
The control system dynamically adjusts its complexity by switching between simple manual control mode and complex system driven control mode based on communication conditions. When communication is established, the system activates the more complex but efficient system driven control; when communication is interrupted, it reverts to simpler manual control, optimizing the balance between efficiency and complexity
Data Source
AI summary
A vehicle communication system includes: a communication server and a vehicle control device. The vehicle control device includes at least one electronic control unit configured to: recognize a position of the host vehicle; acquire section information on the communication established section and the communication interrupted section; determine in which section, either the communication established section or the communication interrupted section, the host vehicle is traveling or is to travel; perform system driven control of the host vehicle based on the road condition information when the host vehicle travels in the communication established section; and perform driver driven control of the host vehicle when the host vehicle travels in the communication interrupted section.