Ride-sharing Frequency Control via Overtaking Vehicle Intervention
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Solution Overview
Problem
In ride-share services with automated drive vehicles operating on circular routes, maintaining a constant service frequency becomes challenging when users take longer at pick-up or drop-off points, leading to clogged or expanded service frequencies between vehicles.
Innovation Solution
A ride-sharing system with a management server that adjusts service frequencies by selecting an overtaking vehicle to intervene between stopped vehicles, optimizing service frequency through overtaking instructions and driving adjustments, ensuring consistent arrival intervals at pick-up and drop-off points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the following vehicle modifies its traveling route to adjust service frequency, then the service frequency is adjusted, but the traveling distance becomes longer
Solution Approach 1:
Instead of modifying the following vehicle's route to adjust service frequency, the patent applies reverse logic by having the preceding vehicle modify its route. The preceding vehicle turns further away from the standard route to increase its traveling distance, thereby reducing its speed and adjusting the service frequency without affecting the following vehicle's efficient path.
2Ease of operation
If a user takes longer at the PUDO point, then the pick-up and drop-off service is completed, but the service frequency between vehicles becomes clogged or expanded
Solution Approach 1:
The management server performs preliminary actions by calculating adjusted routes for the preceding vehicle before the PUDO action delay fully impacts service frequency. When a vehicle is predicted to stop longer than the predetermined time at a PUDO point, the server proactively modifies the preceding vehicle's route to compensate for the expected delay, maintaining service frequency consistency throughout the PUDO operation.
Solution Approach 2:
The system implements feedback control by continuously monitoring the actual service frequency and PUDO action durations. When the management server detects that a vehicle's PUDO action exceeds the predetermined time, it receives feedback about the timing deviation and automatically calculates and transmits adjusted route information to the preceding vehicle to correct the service frequency deviation.
3Reliability
If the service frequency is adjusted by modifying the following vehicle's route, then the arrival interval is maintained, but the overall system efficiency decreases
Solution Approach 1:
The patent applies local quality by selectively modifying only the preceding vehicle's route in the specific local area near the PUDO point where the delay occurs, rather than modifying the entire route of the following vehicle. This localized adjustment maintains arrival interval consistency at the critical PUDO points while preserving the overall efficiency of the ride-sharing system by keeping other portions of the routes optimal.
Data Source
AI summary
A management server executes interval adjustment processing to adjust a service frequency of a ride-sharing vehicle group. In the interval adjustment processing, it is judged whether or not a vehicle pair composed of two vehicles in a relationship of a preceding vehicle and a following vehicle includes a stopping vehicle that stops in a pick-up and drop-off point as a following vehicle. Further, it is judged whether or not the vehicle pair corresponds to a separated pair. If it is judged that vehicle pair includes the stopping vehicle as the following vehicle and the said vehicle pair corresponds to the separated pair, selection processing to select an overtaking vehicle is executed. The overtaking vehicle is a ride-sharing vehicle that overtakes with the stopping vehicle to cut into between the separated pair. An overtake instruction is transmitted to the overtaking vehicle selected by the selection processing.