Joint EV Battery Rescue Coordination for Low-Charge Vehicles

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Solution Overview

Problem

Existing systems for rescuing electric vehicles with low battery charge are inefficient and do not effectively utilize available resources to ensure timely assistance.

Innovation Solution

A server apparatus and vehicle system that identifies candidate rescue vehicles with sufficient battery capacity, coordinates a joint rescue operation, and manages the exchange of batteries to ensure sufficient charge for the disabled vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a single rescue vehicle is used to exchange batteries with a disabled vehicle, then the rescue operation is simple to coordinate, but it may not have sufficient battery capacity to compensate for the disabled vehicle's charge deficiency

Engineering Contradiction:

Improvebattery charge capacityVSAvoidrescue coordination complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent combines multiple rescue vehicles into a joint rescue operation. The server apparatus coordinates two or more rescue vehicles to simultaneously exchange batteries with the disabled vehicle, pooling their battery capacities to ensure sufficient charge compensation while managing the coordination through centralized server control

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The server apparatus serves multiple functions: it identifies disabled vehicles, selects appropriate rescue vehicles, calculates required battery capacities, coordinates the rescue operation, and manages communication between all parties. This multi-functional coordination system resolves the contradiction by handling complexity centrally while enabling sufficient resource aggregation

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple rescue vehicles are coordinated to provide sufficient battery capacity, then the disabled vehicle receives adequate charge, but the coordination and management becomes more complex

Engineering Contradiction:

Improverescue success guaranteeVSAvoidjoint rescue coordination

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The server apparatus acts as an intermediary that mediates between the disabled vehicle and multiple rescue vehicles. It receives disability information, selects suitable rescue vehicles based on battery capacity and location, calculates the secured remaining charge, and coordinates the simultaneous battery exchange operation, thereby managing complexity while ensuring reliable rescue

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The server apparatus performs preliminary actions by pre-identifying and selecting rescue vehicles before the actual rescue operation. It calculates the required battery capacity in advance, determines the secured remaining charge for each rescue vehicle, and prepares the coordination plan beforehand, ensuring reliable rescue execution without real-time complexity

Inventive Principle:

Principle #10Preliminary action

3Quantity of substance

If the second battery is charged from the first battery before reaching the meeting point, then the disabled vehicle receives sufficient charge, but energy is consumed from the rescuing vehicle's primary power source

Engineering Contradiction:

Improveremaining charge of second batteryVSAvoidenergy consumption of first battery

Core Design Contradiction:

Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The rescue vehicle performs preliminary charging of the second battery from the first battery before reaching the meeting point with the disabled vehicle. This advance charging ensures that sufficient energy is transferred to compensate for the disabled vehicle's charge deficiency, while the energy consumption is distributed over the travel time rather than occurring instantaneously at the rescue moment

Inventive Principle:

Principle #10Preliminary action

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

Efficiently coordinates battery exchanges between vehicles to ensure the disabled vehicle receives the necessary charge, extending its cruising distance and ensuring timely rescue without requiring frequent battery replacements.

Implementation Method 1

charge the second battery from the first battery such that the second battery has a remaining charge greater than or equal to the secured remaining charge

Methodology Applied

Scientific EffectBattery charging: Battery (electricity)

Data Source

PatentUS20250384515A1Server apparatus and vehicle

Publication Date: 2025.12.18 SUBARU CORP

AI summary

A server apparatus includes one or more processors and a storage medium storing a program. The program includes one or more instructions that cause the one or more processors to: receive problem information from a disabled vehicle having an insufficient remaining battery charge; extract candidate rescue vehicles each including a first battery and a second battery; select, as a joint rescue candidate group, two or more of the candidate rescue vehicles to jointly rescue the disabled vehicle; determine a secured remaining charge to be secured by the second battery of each of the candidate rescue vehicles in the joint rescue candidate group; and notify each of the candidate rescue vehicles in the joint rescue candidate group of the secured remaining charge to charge the second battery from the first battery such that the second battery has a remaining charge greater than or equal to the secured remaining charge.