Vehicle Traveling Control Position Adjustment for Multi-Vehicle Communication
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Solution Overview
Problem
Current vehicle traveling control systems are limited in acquiring information from preceding vehicles, as they typically only communicate with vehicles directly ahead, restricting the amount of data available for driving assistance and control.
Innovation Solution
A vehicle traveling control device that calculates and adjusts its position to maximize the number of preceding vehicles with which it can communicate, using a communication unit, position information acquisition unit, and number of vehicles calculation unit to determine optimal traveling positions based on the communication range and vehicle positions, thereby increasing the number of vehicles from which information can be acquired.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the vehicle communicates only with preceding vehicles directly ahead, then the communication system remains simple, but the number of preceding vehicles that can be communicated with is limited
Solution Approach 1:
The patent changes the spatial dimension of communication by allowing the vehicle to communicate not only with vehicles directly ahead in the same lane but also with vehicles in adjacent lanes and at different longitudinal positions. This dimensional expansion enables communication with a larger number of preceding vehicles without significantly increasing system complexity, as the same communication hardware can serve multiple spatial directions.
2Loss of information
If the vehicle changes traveling position to communicate with more preceding vehicles, then information acquisition increases, but control complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the communication unit continuously monitors the number of detectable preceding vehicles and their positions. Based on this feedback information, the traveling control unit dynamically adjusts the vehicle's traveling position to optimize information acquisition. This closed-loop control ensures that the system adapts to changing traffic conditions while maintaining manageable control complexity through rule-based decision making.
3Quantity of substance
If the vehicle travels at a position to maximize communication with preceding vehicles, then the number of acquired information increases, but the reliability of using preceding vehicle information decreases
Solution Approach 1:
The patent applies partial action by selectively using information from preceding vehicles based on their reliability and relevance to the current driving situation. Rather than using all available information equally, the system prioritizes information from vehicles that are most relevant to safety and control decisions. This selective approach ensures that the increased amount of information does not compromise reliability, as only quality information is utilized for critical functions.
Data Source
AI summary
A vehicle traveling control device includes: a communication unit that communicate with preceding vehicles; a position information acquisition unit that acquires position information on the preceding vehicles and following vehicles around a host vehicle with which the host vehicle can carry out vehicle-vehicle communication;a number of vehicles calculation unit that calculates a reference number of vehicles and an estimated number of vehicles; anda traveling control unit that causes the host vehicle to travel at the traveling position behind the following vehicle if the estimated number of vehicles is larger than the reference number of vehicles.