Vehicle Battery Discharge Routing for Regenerated Power Overflow
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Solution Overview
Problem
The increasing demand for effective use of electric power stored in vehicles equipped with batteries capable of storing regenerated power is not adequately addressed, leading to potential waste due to batteries exceeding storage limits during travel.
Innovation Solution
A server manages vehicles by estimating power storage transitions based on travel plans and histories, generating messages to propose external power supply before reaching predetermined levels, suggesting suitable power supply facilities with minimal detour impact and power loss, and prioritizing direct current supply to avoid conversion losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the vehicle travels without external power supply to reach the destination, then the travel time is minimized, but the battery power storage amount may exceed the predetermined amount causing waste of regenerated electric power
Solution Approach 1:
The server performs preliminary estimation of battery power storage transition before the vehicle departs, identifying optimal power supply facilities in advance. This allows the driver to stop at predetermined locations during the journey to discharge battery power, preventing excess power accumulation without significantly disrupting the overall travel schedule.
Solution Approach 2:
The server acts as an intermediary between the vehicle and power supply facilities. It analyzes travel routes, battery states, and facility locations to generate optimized power supply plans, mediating between the vehicle's power management needs and external power infrastructure to balance energy efficiency and travel convenience.
2Loss of energy
If the vehicle makes a detour to power supply facilities to discharge battery power, then the regenerated electric power is effectively utilized, but the arrival time at the destination is delayed
Solution Approach 1:
The system pre-calculates optimal power supply stops along the travel route before the vehicle departs. By identifying facilities that require minimal detour and scheduling power discharge activities in advance, the system minimizes actual time loss while ensuring effective utilization of regenerated power through planned stopping points.
3Ease of operation
If the battery power storage amount is allowed to exceed the predetermined amount, then no power supply facility visits are needed, but the regenerated electric power cannot be stored and is wasted
Solution Approach 1:
The server continuously monitors battery power storage amounts and compares them against predetermined thresholds. When the storage amount approaches the limit, the system provides feedback by recommending power supply facility visits, creating a closed-loop control system that prevents power waste while maintaining operational simplicity through automated guidance.
4Loss of energy
If the vehicle visits power supply facilities that require conversion from direct current to alternating current, then power can be supplied to the grid, but power loss occurs during conversion
Solution Approach 1:
The server analyzes the characteristics of different power supply facilities along the travel route and identifies those with direct direct current connection capabilities. By prioritizing facilities with matching power types, the system minimizes conversion losses at specific locations while maintaining overall system adaptability to various facility types.
Data Source
AI summary
An operation management server manages a vehicle equipped with a battery able to store regenerated electric power. The operation management server includes: a processor that generates a message to be transmitted to the vehicle; and a storage that stores traveling histories of a plurality of vehicles. The processor estimates a transition in a power storage amount of the battery on a planned travel route of the vehicle based on a travel plan of the vehicle and the travel histories of the vehicles. The processor generates the message for proposing execution of external power supply from the battery to an outside of the vehicle before the power storage amount reaches a predetermined amount, when an estimation is made that the power storage amount will exceed the predetermined amount on the planned travel route.