Vehicle Charging Control to Detect Conflicting Remote Commands
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Solution Overview
Problem
The challenge is to prevent interference between multiple remote control operations for charging and discharging a vehicle's power storage, and to diagnose whether a vehicle is being remotely controlled without relying on coordination between different server owners.
Innovation Solution
A server system with determination units to assess whether a vehicle is under remote control, by checking for immediate charging, timer-programmed charging, and charging errors, and a vehicle controller that notifies the user if it determines the vehicle is being remotely controlled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vehicle is remotely controlled by multiple servers for charging and discharging control, then energy management capability is improved, but command interference occurs and control reliability deteriorates
Solution Approach 1:
The vehicle controller monitors charging status and timer-programmed charging settings, then transmits this information to servers. This feedback mechanism allows servers to determine whether the vehicle is already under remote control, preventing multiple servers from issuing conflicting commands simultaneously while maintaining the ability to participate in energy management programs.
Solution Approach 2:
The vehicle controller acts as an intermediary between multiple servers and the vehicle's power storage system. It receives requests from multiple servers, determines the actual charging status and control mode, and selectively executes commands or transmits status information to prevent interference while enabling energy management participation.
2Extent of automation
If remote control technology is widely deployed for autonomous charging, then automation level is improved, but security risk increases due to potential malicious control
Solution Approach 1:
The vehicle controller performs preliminary determination of charging status and timer-programmed charging settings before executing remote control commands. By checking these conditions in advance and transmitting status information to servers, the system prevents malicious or unintended control actions while maintaining high automation for legitimate charging operations.
Solution Approach 2:
The system implements feedback by transmitting vehicle status information (charging status, timer-programmed charging settings) to servers. This allows servers to verify whether remote control is appropriate before issuing commands, creating a security layer that prevents malicious control while enabling automated charging when conditions are appropriate.
3Ease of operation
If the vehicle automatically charges when entering chargeable state, then charging convenience is improved, but loss of user awareness occurs
Solution Approach 1:
The vehicle controller automatically determines charging status and timer-programmed charging settings, and selectively executes charging commands without requiring continuous user intervention. This self-service mechanism maintains charging convenience while the notification function ensures users remain informed about remote control activities.
Solution Approach 2:
The system provides feedback to users through notifications when remote control operations are performed. This allows the vehicle to automatically manage charging for convenience while keeping users informed about what the system is doing, preventing complete loss of user awareness.
Data Source
AI summary
A vehicle diagnosis method includes a) determining, when a subject vehicle including a power storage enters a chargeable state in which it can receive power feed from EVSE, whether or not charging of the power storage is started in the subject vehicle, b) determining whether or not timer-programmed charging has been set in the subject vehicle that has entered the chargeable state, and c) determining whether or not charging and discharging control of the power storage is being carried out in the subject vehicle under remote control based on a determination result in at least one of a) determining and b) determining.