Roadside-Guided Autonomous Driving for Low-Complexity Vehicle Control
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Solution Overview
Problem
Existing autonomous vehicles require expensive and complicated on-board systems, hindering widespread commercial implementation.
Innovation Solution
A comprehensive system comprising a hierarchical structure of traffic control centers and units, Road Side Units, and vehicle subsystems, providing detailed and time-sensitive control instructions for vehicle following, lane changing, and route guidance, with redundancy and fail-safe mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If expensive and complicated on-board systems are used in autonomous vehicles, then vehicle sensing and control capabilities are improved, but system cost and complexity increase significantly
Solution Approach 1:
The patent introduces Road Side Units (RSUs) as intermediary devices that perform sensing, detection, and control functions externally. These RSUs act as mediators between the central control system and vehicles, providing weather information, road condition data, and control commands without requiring complex on-board systems in each vehicle. This shifts the complexity from individual vehicles to infrastructure-based solutions.
Solution Approach 2:
The patent merges multiple functions (sensing, detection, communication, and control) into integrated Road Side Units and hierarchical Traffic Control Centers. By combining these functions in centralized infrastructure components rather than distributing them across individual vehicles, the system achieves reliable vehicle control while reducing on-board system complexity and cost.
2Reliability
If comprehensive on-board systems are deployed in each autonomous vehicle, then vehicle autonomy and safety are improved, but widespread commercial implementation becomes difficult
Solution Approach 1:
The patent uses Road Side Units as intermediary infrastructure components that provide autonomous driving support services to multiple vehicles. Instead of manufacturing complex autonomous systems in each vehicle, the RSUs serve as shared intermediaries that deliver sensing, weather information, and control commands to numerous vehicles, making widespread implementation economically feasible.
Solution Approach 2:
The Road Side Units are designed as universal infrastructure components that serve multiple vehicles and multiple functions simultaneously. A single RSU can provide weather information, road condition monitoring, and control commands to numerous vehicles in its coverage area, achieving economies of scale that enable widespread commercial deployment.
3Measurement precision
If detailed and time-sensitive control instructions are sent to individual vehicles, then traffic control precision and safety are improved, but communication system requirements and complexity increase
Solution Approach 1:
The patent segments the communication system into a hierarchical structure with Traffic Control Centers and Road Side Units at different levels. This segmentation allows precise control instructions to be generated centrally and delivered through distributed RSUs, maintaining high precision while distributing communication complexity across multiple manageable components rather than requiring a single complex communication system.
Data Source
AI summary
This technology provides an Autonomous Vehicle (AV) Intelligent Driving System (IDS) that uses weather information or special information to provide vehicle operation or control. The Onboard Unit (OBU) uses a traffic control center/traffic control unit (TCC/TCU) communication module or a roadside unit (RSU) communication module to receive vehicle-specific targeted weather information and/or special information at the Guidance Level of vehicle driving tasks from the TCC/TCU or the RSU. The special information comprises activity, accidents, and hazards/obstacles information. The vehicle control module enhances driving safety by integrating vehicle-specific weather, pavement condition, activity, accidents, and hazards/obstacles information.