Autonomous Vehicle Load-Aware Travel Restriction Control
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Solution Overview
Problem
When autonomous driving vehicles used for transportation services undergo sudden acceleration or deceleration without passengers, the vehicle load increases, leading to shorter maintenance intervals, potential service disruptions, and a higher risk of failure.
Innovation Solution
A vehicle management system that includes a server capable of communicating with autonomous vehicles. The system requests travel restrictions during autonomous driving when a user is on board and cancels these restrictions when the user is not on board, using the accumulated load calculation to determine the extent of cancellation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If sudden acceleration or deceleration is performed when there are no users on board, then the travel time of the vehicle is shortened, but the load on the vehicle is increased and the possibility of failure occurs
Solution Approach 1:
The system dynamically adjusts the travel restriction cancellation based on the accumulated load amount. When the accumulated load is within a threshold, the server cancels the travel restriction to allow rapid acceleration/deceleration. When the accumulated load exceeds the threshold, the server maintains the travel restriction to prevent excessive load. This dynamic adjustment resolves the contradiction by adapting the acceleration/deceleration behavior to the current load state.
Solution Approach 2:
The system changes the parameter of travel restriction cancellation based on the accumulated load amount. The server calculates the accumulated load and uses this value to determine whether to cancel or maintain the travel restriction. This parameter change approach allows the system to optimize between travel time and reliability by adjusting the acceleration/deceleration control according to the vehicle's load state.
2Loss of time
If sudden acceleration or deceleration is performed when there are no users on board, then the travel time of the vehicle is shortened, but the time required for the next maintenance is shortened and the time during which services cannot be provided is increased
Solution Approach 1:
The system dynamically controls the cancellation of travel restriction based on the accumulated load amount to balance travel time reduction and maintenance interval extension. By adjusting the acceleration/deceleration behavior according to the load state, the system achieves optimal trade-off between operational efficiency and maintenance requirements.
Solution Approach 2:
The server calculates the accumulated load amount and uses this feedback to determine the appropriate travel restriction cancellation. This feedback mechanism ensures that the vehicle operates within safe load limits while maximizing travel time efficiency, thereby extending the maintenance interval by preventing excessive wear from rapid acceleration/deceleration.
3Loss of time
If the server cancels the travel restriction when the user is not on board, then the travel time is shortened, but the accumulated amount of load increases
Solution Approach 1:
The server changes the parameter of travel restriction cancellation based on the accumulated load amount. When the accumulated load is within a threshold, the server cancels the travel restriction to allow rapid acceleration/deceleration and reduce travel time. When the accumulated load exceeds the threshold, the server maintains the travel restriction to prevent excessive load increase. This parameter change approach resolves the contradiction by adapting the acceleration/deceleration control to the current load state.
Data Source
AI summary
A management server executes a process including: a step of acquiring operation information when an execution condition is established; a step of setting a traveling route; a step of calculating an accumulated amount of load when there is a vehicle set on the forwarding route; a step of setting the details of canceling the travel restriction according to the accumulated amount of the load of the vehicle on the forwarding route when there is a vehicle in a high accumulated state; a step of setting cancellation of travel restrictions for vehicles on the forwarding route when there is no vehicle in a high accumulation state; and a step of transmitting the travel plan information.