EV Battery Charging Profile Control for Battery Life and Charge Time
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Solution Overview
Problem
Existing vehicle technologies lack effective methods for optimizing battery charging patterns and managing battery state to enhance performance and extend battery life, considering factors such as charging patterns and environmental conditions.
Innovation Solution
A vehicle control apparatus and method that includes a processor to monitor battery energy and charging information, adjust charge currents, and update charging profile information based on pattern information to set charging ranges and optimize charging times, thereby extending battery life and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the battery is charged to maximum capacity continuously, then the energy storage is maximized, but the battery life is reduced due to excessive charging stress
Solution Approach 1:
The charging profile is dynamically adjusted based on battery state of charge, temperature, and charging history. The system transitions between different charging phases (constant current, constant voltage, tapering) to optimize both energy storage and battery longevity, avoiding continuous maximum capacity charging
Solution Approach 2:
The system changes charging parameters (current, voltage, rate) based on battery conditions. By monitoring battery state and adjusting charging parameters in real-time, the system maximizes energy storage while preventing excessive charging stress that would reduce battery life
2Productivity
If the charging current is increased to reduce charging time, then the charging speed is improved, but the battery degradation accelerates
Solution Approach 1:
The charging process uses periodic action with distinct phases (constant current, constant voltage, tapering). The system alternates between higher current phases for speed and lower current phases for protection, achieving balanced charging that maintains productivity while reducing degradation
Solution Approach 2:
The system applies partial charging actions at different stages - using higher current when battery SOC is low for speed, and reducing current when SOC approaches maximum to prevent degradation. This partial application of charging stress optimizes both charging speed and battery reliability
3Reliability
If the charging profile is continuously updated without user consent, then the battery performance is optimized, but the user control and transparency are reduced
Solution Approach 1:
The system implements feedback by notifying the user of charging profile updates and obtaining consent before applying changes. This feedback mechanism maintains user control and transparency while still enabling performance optimization through updated charging profiles
Solution Approach 2:
The notification system acts as an intermediary between the automated charging optimization system and the user. It translates technical charging profile changes into user-friendly information and facilitates informed user decision-making, balancing performance optimization with user control
4Use of energy by moving object
If the charging range is set to maximum SOC, then the available energy is maximized, but the battery stress and heat generation increase
Solution Approach 1:
The charging range is dynamically determined based on battery temperature, state of charge, and environmental conditions. The system adjusts the target SOC and charging rate in real-time to maximize available energy while keeping battery stress and heat generation within safe limits
Solution Approach 2:
The system changes charging parameters (target SOC, current rate) based on battery conditions to optimize the balance between available energy and harmful factors. By monitoring temperature and state, the system adjusts parameters to achieve maximum energy storage without excessive stress or heat
Data Source
AI summary
A vehicle control apparatus includes a processor and a memory. The processor monitors at least one of battery energy information or charging information of a vehicle. The processor determines whether to generate at least one of first pattern information for setting a charging range of a battery of the vehicle or second pattern information for adjusting a charge current using a charging time taken to charge the battery. The processor identifies an input indicating consent to updating the at least one of the first pattern information or the second pattern information, which is generated based on determination to generate the at least one of the first pattern information or the second pattern information, in charging profile information. The processor updates the charging profile information, using the generated at least one of the first pattern information or the second pattern information.