Power Supply Control for Post-Shutdown Tasks
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Solution Overview
Problem
Conventional technologies do not account for securing power for tasks executed after a terminal device is shut down, leading to potential power shortages and increased fuel consumption.
Innovation Solution
A control system that adjusts the target power value for a power supply device based on scheduled post-shutdown tasks, setting a higher target value when such tasks are anticipated, ensuring power is available at shutdown conditions are met, and managing power generation accordingly to avoid excessive battery size and fuel consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the target power value is increased to secure power for post-shutdown tasks, then power availability for post-shutdown tasks is improved, but fuel consumption increases
Solution Approach 1:
The management unit determines in advance whether post-shutdown tasks are scheduled and sets the target power value accordingly before shutdown occurs. This preliminary determination allows the system to prepare adequate power reserves only when necessary, avoiding continuous high power consumption during normal operation.
Solution Approach 2:
The target power value is made dynamic rather than fixed. The management unit adjusts the target power value between a first value (when no post-shutdown tasks are scheduled) and a second value higher than the first (when post-shutdown tasks are scheduled). This dynamic adjustment optimizes the balance between power availability and fuel consumption.
2Reliability
If the target power value is increased to secure power for post-shutdown tasks, then power availability for post-shutdown tasks is improved, but battery size increases
Solution Approach 1:
The system determines in advance whether post-shutdown tasks are scheduled and sets the target power value accordingly. This allows the battery to be sized for normal operation only, rather than being oversized to accommodate occasional post-shutdown tasks, thus avoiding unnecessary weight increase.
Solution Approach 2:
The target power value parameter is changed based on the scheduling status of post-shutdown tasks. By varying this parameter between a first value and a second value, the system optimizes power availability without requiring a larger battery capacity, thereby avoiding increased weight.
Data Source
AI summary
A control system includes a management unit configured to control a power supply device toward a target value for an output performance value of the power supply device that supplies power to a predetermined device, and an acquisition unit configured to acquire information related to a post-shutdown task scheduled to be executed after a shutdown condition of the predetermined device is satisfied, in which the management unit refers to the information acquired by the acquisition unit, and, when the post-shutdown task is scheduled to be executed, sets the target value to a second target value which is higher than a first target value set when the post-shutdown task is scheduled to be executed, before the shutdown condition is satisfied.