Vehicle Power Control with Independent Charge-Discharge Ranges
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Solution Overview
Problem
Current power management systems for vehicles with power storage devices lack the ability to effectively manage charging and discharging based on situational needs, particularly in utilizing stored power to mitigate peak power consumption and store solar-generated power efficiently.
Innovation Solution
A power control system that allows users to separately set charging and discharging power settings, with a wider adjustment range for discharging power to accommodate varying user requests while restricting charging power to prevent excessive power variation in connected devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adjustment range of discharging power is made wider to accommodate user requests, then user needs are better satisfied, but power variation in connected devices increases
Solution Approach 1:
The patent segments the power control into two independent parts: charging power control and discharging power control. Each part has its own adjustment range and control settings, allowing independent optimization. The charging power adjustment range is restricted to prevent excessive power variation, while the discharging power adjustment range is made wider to satisfy user requests for power utilization.
2Stability of the object's composition
If the charging power adjustment range is restricted to prevent excessive power variation, then power stability is improved, but flexibility in charging control is reduced
Solution Approach 1:
The patent applies different control characteristics to different parts of the power management system. The charging power control is designed with restricted adjustment range and specific control logic to ensure stability, while the discharging power control is designed with wider adjustment range to provide flexibility. Each part has localized quality suited to its function.
Data Source
AI summary
A power control system includes: an ECU configured to control (i) charging from a power facility to a vehicle and (ii) discharging from the vehicle to the power facility; and a user terminal configured to allow a user to separately set a charging power setting value and a discharging power setting value. When the charging from the power facility to the vehicle is performed, the ECU is configured to control power charged to the vehicle per unit time to correspond to the charging power setting value set by the user using the user terminal. When the discharging from the vehicle to the power facility is performed, the ECU is configured to control power discharged from the vehicle per unit time to correspond to the discharging power setting value set by the user using the user terminal.