Charging Station Battery Preconditioning for EV Charge Uptake
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Solution Overview
Problem
Electric vehicle batteries do not always operate within the optimal temperature range for efficient charging, leading to suboptimal charge uptake and range performance.
Innovation Solution
An electric vehicle charging system that includes a controller with an optimization module to adjust the battery temperature to an optimal range before charging, using a battery heating/cooling system powered by the charging station if necessary, ensuring efficient charging by maintaining the battery within the ideal temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging is performed without temperature optimization, then charging process is simple and fast, but battery charge uptake efficiency is suboptimal
Solution Approach 1:
The system performs preliminary temperature assessment and adjustment before charging begins. The controller evaluates battery temperature and activates heating or cooling systems in advance to bring the battery within the optimal charging temperature range, ensuring efficient charge uptake from the start of charging.
Solution Approach 2:
The system dynamically adjusts battery temperature by changing thermal parameters through heating or cooling systems. The controller monitors temperature and modifies the thermal state of the battery to maintain it within the optimal range, directly improving charge uptake efficiency.
2Device complexity
If battery temperature is adjusted using vehicle's own power, then charging system is simple, but vehicle range is reduced due to power consumption
Solution Approach 1:
The charging station acts as an intermediary power source for temperature adjustment. Instead of the vehicle battery powering the heating/cooling systems, the charging station provides the necessary power during the temperature optimization phase, preserving vehicle range while enabling effective temperature control.
Solution Approach 2:
The system performs temperature adjustment as a preliminary action before main charging begins. By completing temperature optimization first using charging station power, the system ensures the battery is ready for efficient charging without depleting vehicle range during the temperature conditioning phase.
3Loss of time
If battery temperature is not optimized, then charging process is fast and simple, but range performance is suboptimal
Solution Approach 1:
The system optimizes range performance by changing the temperature parameter of the battery to fall within the optimal charging range. This temperature parameter adjustment enables more efficient charge uptake, translating to better range performance from the same charging input.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution optimizes battery charge uptake and range performance by ensuring the battery operates within the optimal temperature range during charging, enhancing the overall efficiency and effectiveness of the charging process.
Implementation Method 1
powering a battery heating/cooling system from the charging station to heat/cool the battery
Implementation Method 2
powering a battery heating/cooling system from the charging station to heat/cool the battery
Data Source
AI summary
One aspect provides a method of charging a battery of an electric vehicle including plugging the electric vehicle into a charging station, measuring a temperature of the battery, and adjusting the temperature of the battery to be within a charging temperature range using power from the charging station.