BEV Charging Route Control for Battery Temperature Readiness
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Solution Overview
Problem
Existing power supply systems for battery electric vehicles (BEVs) are inefficient when supplying power to vehicles in need, particularly due to temperature fluctuations in the vehicle batteries during travel, which can degrade charging efficiency.
Innovation Solution
A server apparatus that communicates with vehicles to optimize travel routes to ensure they arrive at a power supply point a predetermined time before scheduled charging, maintaining battery temperature within an optimal range by limiting discharge and providing a margin time for cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the vehicle travels to the power supply point immediately when power is needed, then the response time is reduced, but the battery temperature may be too high for efficient charging
Solution Approach 1:
The system performs preliminary actions by having the vehicle travel to the power supply point before the actual charging is needed. The travel is scheduled such that the vehicle arrives with sufficient advance time (e.g., 30 minutes to 1 hour before the scheduled charging time) to allow battery temperature to decrease to an optimal range for charging, while still maintaining timely response to power needs.
2Temperature
If the vehicle travels a longer distance to cool the battery, then the battery temperature decreases to optimal levels, but the time required increases
Solution Approach 1:
The system changes the timing parameter of vehicle travel rather than the distance. By adjusting when the vehicle arrives at the power supply point (scheduling arrival with sufficient advance time), the system allows natural cooling of the battery during the travel period, achieving optimal temperature without requiring additional cooling distance or time.
3Use of energy by moving object
If the vehicle continues to use battery power until charging is needed, then the available power is maximized, but the battery temperature increases reducing charging efficiency
Solution Approach 1:
The system schedules vehicle travel to the power supply point in advance, creating a time buffer before charging begins. This preliminary travel action allows the battery to cool down naturally during the journey, ensuring that when charging starts, the battery is at an optimal temperature for efficient energy transfer, thus preserving charging efficiency while maintaining available power.
Data Source
AI summary
A server apparatus includes a communication interface and a controller configured to communicate using the communication interface and transmit, to a vehicle to be charged, information on a travel route according to a position of the vehicle to be charged such that the vehicle to be charged, which travels using power of a battery, arrives at a power supply point to receive power supply a predetermined time period before a scheduled time for the power supply and temperature of the battery on arrival is a predetermined temperature.