Vehicle Group Control Device Interruption Estimation
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Solution Overview
Problem
Existing vehicle group control devices struggle to accurately estimate the number of interruption vehicles that do not form a vehicle group, which affects the control of vehicle groups during travel, particularly when these interruption vehicles are present between a first vehicle and a second vehicle within the group.
Innovation Solution
A vehicle group control device that includes a first vehicle-to-vehicle distance estimation unit, a second vehicle-to-vehicle distance recognition unit, and a number-of-interruption-vehicles estimation unit, using vehicle-mounted sensors to measure and calculate the distances between vehicles to determine the number of interruption vehicles, and a vehicle group release unit to manage the vehicle group based on a threshold value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vehicle group control device uses vehicle-mounted sensors to measure and calculate distances between vehicles, then the measurement precision of vehicle-to-vehicle distance is improved, but the device complexity increases due to multiple sensing and calculation units
Solution Approach 1:
The patent divides the distance measurement function into multiple specialized units: a first vehicle-to-vehicle distance estimation unit for estimating distances to group vehicles, and a second vehicle-to-vehicle distance recognition unit for recognizing distances to interruption vehicles. This segmentation allows each unit to be optimized for its specific measurement task, improving overall measurement precision while managing complexity through functional specialization.
Solution Approach 2:
The patent introduces an interruption determination unit as an intermediary that processes sensor data to identify interruption vehicles between the own vehicle and group vehicles. This intermediary unit filters and interprets raw sensor measurements, enabling the distance recognition units to focus on specific measurement tasks and improving the reliability of distance measurements without requiring direct complex interaction between all sensing components.
2Reliability
If the vehicle group control device estimates the number of interruption vehicles, then the reliability of vehicle group control is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent employs a feedback mechanism where the interruption determination unit continuously monitors sensor data, identifies interruption vehicles, and provides this information to the number of interruption vehicles estimation unit. The estimation results are then fed back to the vehicle group control unit, which adjusts control strategies based on the estimated number of interruptions. This closed-loop feedback system improves control reliability by continuously adapting to changing traffic conditions.
Solution Approach 2:
The patent performs preliminary identification and classification of interruption vehicles using the interruption determination unit before conducting the actual number estimation. By pre-processing sensor data to identify potential interruption vehicles and their positions, the system reduces the complexity of the subsequent estimation process and improves the accuracy of the final count.
3Productivity
If the vehicle group control device releases the vehicle group when the number of interruption vehicles exceeds a threshold, then the productivity of vehicle group travel is maintained, but the stability of the object's composition changes
Solution Approach 1:
The patent implements dynamic vehicle group management by continuously monitoring the number of interruption vehicles and comparing it against a predetermined threshold. When the threshold is exceeded, the system dynamically releases the vehicle group configuration, allowing vehicles to operate independently. This dynamic adjustment mechanism maintains productivity by adapting the group composition to current traffic conditions while preserving the stability of the group when conditions are favorable.
Solution Approach 2:
The patent changes the operational parameter of vehicle group composition based on the estimated number of interruption vehicles. When the number of interruption vehicles exceeds the threshold, the system transitions from a grouped configuration to an independent vehicle configuration. This parameter change allows the system to maintain high productivity by avoiding unnecessary group constraints while interruption vehicles are present, while preserving group stability when the road is clear.
Data Source
AI summary
A vehicle group control device includes: a first vehicle-to-vehicle distance estimation unit configured to estimate a first vehicle-to-vehicle distance which is a vehicle-to-vehicle distance between the first vehicle and the second vehicle; a second vehicle-to-vehicle distance recognition unit configured to recognize a second vehicle-to-vehicle distance which is a vehicle-to-vehicle distance between a reference interruption vehicle and the first vehicle; and the number of interruption vehicles estimation unit configured to estimate the number of interruption vehicles between the first vehicle and the second vehicle based on the first vehicle-to-vehicle distance and the second vehicle-to-vehicle distance.