EV Charging Control for Dynamic ISO 15118 Standard Selection
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Solution Overview
Problem
Existing vehicle charging systems require a long time to establish a connection using the desired power transfer standard, as higher priority is given to Virtual Power Plant (VPP) charging standards even when the user does not desire them.
Innovation Solution
A control device and method that acquire user preferences regarding VPP charging and notify the power station of the supported charging standards accordingly, allowing the power station to prioritize the desired standard for connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the order of priority is set in advance to the first to fifth charging standards, then the charging process can be automated and standardized, but a long time is required to establish a connection when the user's desired standard is not the highest priority
Solution Approach 1:
The patent makes the priority order dynamic by allowing users to specify their desired charging standard. The control device receives user input indicating the desired standard and adjusts the connection attempt sequence accordingly, rather than using a fixed predetermined order. This dynamic adjustment resolves the contradiction by enabling automation while reducing connection time when user preferences are considered.
Solution Approach 2:
The system implements feedback by receiving user input about their desired charging standard and using this information to adjust the connection process. The control device obtains feedback from the user regarding their preference and modifies the priority order based on this feedback, thereby avoiding unnecessary connection attempts to non-desired standards and reducing overall connection time.
2Adaptability or versatility
If a higher priority is given to the charging standard corresponding to VPP charging, then the power grid's power supply-demand adjustment can be supported, but the user's desired charging standard may not be connected quickly when it is not VPP charging
Solution Approach 1:
The patent applies dynamics by making the priority order flexible and user-adjustable. While the system can support VPP charging with high priority when needed, it allows users to dynamically change their preferences. When users do not desire VPP charging, the system adjusts the priority order to reflect user preferences, thus maintaining adaptability while reducing connection time for non-VPP scenarios.
Solution Approach 2:
The system performs preliminary action by obtaining user preferences before attempting connections. By asking users about their desired charging standard in advance, the system can pre-configure the connection attempt sequence to match user expectations, avoiding unnecessary attempts to non-desired standards and reducing overall connection time while still maintaining the capability to support VPP charging when users choose to enable it.
Data Source
AI summary
The charge control ECU (control device) includes a communication unit that communicates with a EVSE (power station) in which external charging (power transfer) is performed with electrified vehicle. When the user desires to respond to the power supply-demand adjustment request, the communication unit notifies electrified vehicle that ISO15118-20 (first standard) is supported by EVSE, and when the user does not desire to respond to the power supply-demand adjustment request, the communication unit notifies EVSE that ISO15118-2 (second standard) is supported by electrified vehicle.