EV Charging Controller Adjusting Start Time for Weather
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Solution Overview
Problem
Electric vehicles face insufficient battery charging due to fixed reserved charging times, which can lead to inadequate charging during unexpected situations like weather changes or traffic conditions, affecting user convenience and safety.
Innovation Solution
An electric vehicle system that adjusts battery charging start times based on navigation schedules, residual battery life, and event information, such as weather conditions, using a controller and communication part to optimize charging and power usage, allowing for pre-operation of the air conditioner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed reserved charging time is used, then charging schedule is simple and stable, but battery charging becomes insufficient under unexpected situations
Solution Approach 1:
The charging start time is changed from a fixed predetermined time to a dynamically adjustable time based on received event information. The controller modifies the charging schedule in real-time according to weather conditions, traffic situations, and other external factors, allowing the system to adapt to unexpected situations while maintaining operational reliability.
Solution Approach 2:
The system receives event information from external sources (weather data, traffic conditions, user preferences) and uses this feedback to adjust the charging start time. This closed-loop feedback mechanism ensures that charging sufficiency is maintained by continuously adapting to changing conditions without requiring complex manual scheduling.
2Reliability
If charging start time is adjusted based on event information, then battery charging sufficiency is improved, but system complexity increases
Solution Approach 1:
The controller acts as an intermediary that receives diverse event information from multiple external sources (weather stations, traffic systems, user terminals) and translates this information into appropriate charging time adjustments. This intermediary approach simplifies the overall system architecture by centralizing the decision-making logic in the controller rather than distributing complexity across multiple components.
Solution Approach 2:
The system adjusts the charging start time parameter based on received event information. By changing this single critical parameter (charging start time) rather than overhauling the entire charging system, the patent achieves improved charging sufficiency with minimal increase in system complexity. The controller modifies timing parameters based on weather conditions, traffic situations, and user preferences.
3Ease of operation
If charging time is extended for weather preparation, then user convenience is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary actions (air conditioning operation, battery charging) in advance based on predicted weather conditions and user schedules. By using event information to trigger pre-charging and pre-conditioning only when necessary and optimal, the system improves user convenience without excessive energy consumption. The controller calculates the precise charging start time to ensure sufficient power is available when needed.
Solution Approach 2:
The system automatically adjusts charging schedules and operates air conditioning based on received event information without requiring manual user intervention. This self-service capability improves user convenience by autonomously optimizing energy usage patterns, charging only when conditions are favorable and user needs are anticipated, thereby avoiding unnecessary energy consumption.
Data Source
AI summary
An electric vehicle, a system, and a method for charging a battery of the electric vehicle are disclosed. The system and electric vehicle sufficiently charge a battery even under an unexpected situation, and when a reserved charging time of the electric vehicle is fixed. The system and the electric vehicle economically use electricity by changing a time needed for battery charging, and drive an air conditioner of the vehicle in preparation for a weather situation such as intense cold or intense heat, thereby increasing user convenience and safety of a vehicle driver who rides in the vehicle.