Electric Vehicle Power Outlet Priority Control
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Solution Overview
Problem
Electrically powered vehicles face challenges in simultaneously providing large and small electric power feeds without exceeding output limits, leading to potential power failures in external equipment.
Innovation Solution
Incorporating a power supply device with a first and second outlet, and an electronic control unit that prioritizes the first power feed by stopping the second power feed when certain thresholds are exceeded, ensuring sufficient electric power delivery while displaying notifications to users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If large electric power feed and small electric power feed are executed simultaneously, then the total power output increases, but the output may exceed the output upper limit value causing power failure
Solution Approach 1:
The patent implements dynamic power allocation by continuously monitoring the output of large electric power feed and adjusting the small electric power feed accordingly. When large power output increases, the system dynamically reduces or stops small power feed to prevent exceeding the upper limit, ensuring reliable power supply within safe operating boundaries.
Solution Approach 2:
The control unit determines in advance whether to stop small electric power feed based on predicted total output limits. By proactively stopping small power feed before the upper limit is exceeded, the system prevents power failure conditions rather than reacting after the limit is breached.
2Reliability
If output of large electric power feed is limited to stay within upper limit value, then power failure is prevented, but the secured electric power for large power feed becomes insufficient
Solution Approach 1:
The control unit acts as an intermediary that manages the interaction between large and small electric power feeds. It monitors the large power feed output and mediates the small power feed accordingly, stopping it only when necessary to prevent exceeding the upper limit, thereby maximizing power delivery to large equipment while maintaining system reliability.
3Reliability
If simple output limiting is implemented, then power failure is prevented, but user awareness and control of power distribution is reduced
Solution Approach 1:
The system implements feedback by notifying the user when small electric power feed is stopped due to large power feed output. This keeps the user informed about the power distribution state and the reasons for stopping small power feed, maintaining transparency while automatically managing power limits to prevent failures.
Data Source
AI summary
An electrically powered vehicle includes a power supply device, a first outlet, a second outlet, and an electronic control unit. The first outlet configured to be connected to an external equipment that is not constituent equipment of the electrically powered vehicle. The second outlet is configured to be connected to an external equipment that is not constituent equipment of the electrically powered vehicle. While first power feed and second power feed are being executed simultaneously, in a case where first power feed electric power exceeds a first threshold or in a case where total electric power of the first power feed and the second power feed exceeds a second threshold, the electronic control unit is configured to temporarily stop the second power feed and continue the first power feed.