Vehicle Control System Aligning Arrival and Stopping Orders
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Solution Overview
Problem
Existing vehicle control methods do not effectively synchronize the arrival and stopping orders of multiple vehicles at a location, leading to inefficient spatial utilization.
Innovation Solution
A vehicle control method that uses a controller to set a stopping order and estimate an arrival order based on vehicle position information, adjusting travel routes to ensure the arrival order matches the stopping order, thereby optimizing the use of a stopping area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicles are dispatched independently without coordinating arrival and stopping orders, then each vehicle can operate autonomously and simply, but the stopping area utilization efficiency deteriorates due to vehicles arriving out of sequence
Solution Approach 1:
The control device determines the stopping order in advance and communicates it to vehicles before they arrive at the stopping area. Each vehicle receives its assigned stopping order and adjusts its speed accordingly to achieve the predetermined arrival sequence, thereby improving stopping area utilization without requiring complex real-time coordination during arrival
Solution Approach 2:
The control device monitors the positions of multiple vehicles in real-time and adjusts their speed commands based on their current locations and the desired stopping order. This feedback mechanism ensures vehicles arrive in the correct sequence while maintaining autonomous operation, resolving the contradiction between system simplicity and coordination efficiency
2Productivity
If vehicles are controlled to arrive in a specific order by adjusting their speeds, then the stopping area is used efficiently, but the risk increases that a vehicle may arrive after its user's meeting time
Solution Approach 1:
The control device calculates and determines the stopping order in advance, considering both the stopping area utilization efficiency and the meeting times of users. By pre-determining the optimal stopping sequence that accounts for user arrival times, the system ensures vehicles are dispatched in an order that maximizes efficiency while minimizing the risk of late arrivals
Solution Approach 2:
The control device dynamically adjusts the speed commands for each vehicle based on real-time position information and the predetermined stopping order. This dynamic control allows the system to adapt to varying traffic conditions and vehicle positions while maintaining the optimized stopping sequence, balancing efficiency gains with on-time arrival reliability
3Productivity
If the arrival order is forced to match the stopping order through active control, then spatial utilization improves, but the system requires complex real-time monitoring and control of multiple vehicles
Solution Approach 1:
The control device determines the optimal stopping order in advance based on vehicle positions and destination requirements. By pre-calculating the desired stopping sequence before vehicles arrive at the stopping area, the system eliminates the need for complex real-time coordination during the arrival process, reducing control system complexity while maintaining high spatial utilization efficiency
Solution Approach 2:
Each vehicle autonomously adjusts its speed based on the predetermined stopping order and its current position information. The vehicles self-regulate their arrival times to match the desired sequence without requiring continuous active control intervention, thereby improving stopping area utilization while minimizing the complexity of the control system
Data Source
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AI summary
A controller (20) comprises a stopping order setting unit (214) that sets the stopping order of a plurality of vehicles, which indicates the vehicle order at a stop location in a stopping area; an arrival order estimation unit (215) that estimates, based on position information of the plurality of vehicles, an arrival order, which indicates the order in which the plurality of vehicles arrive at a prescribed location; and a travel control unit (216) that determines whether the arrival order differs from the stopping order, and if it is determined that the arrival order differs from the stopping order, controls the travel of at least one vehicle from among the plurality of vehicles, such that the arrival order is the same as the stopping order by the time the plurality of vehicles arrive at the prescribed location.