Mobile Battery Charger Dispatch for Multi-Vehicle Fleet Charging

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Solution Overview

Problem

Charging multiple vehicles in a fleet efficiently is complex due to large current draws and requires human intervention, especially when vehicles need to be driven to and from charging stations.

Innovation Solution

A mobile battery charging device with a drive system, charging interface, and controller that communicates vehicle status and position to prioritize and charge vehicles based on their battery needs, using overhead tracks for movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple charging stations are provided for each vehicle in the fleet, then charging capacity is sufficient, but the current draw becomes excessively large and facility complexity increases

Engineering Contradiction:
Improvecharging capacityVSAvoidfacility complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the charging facility into multiple modular charging stations, each capable of independently serving one vehicle. This segmentation allows the system to handle multiple vehicles simultaneously without requiring a single oversized charging infrastructure, thereby managing current draw and facility complexity while maintaining adequate charging capacity for the fleet.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If vehicles are driven manually to and from charging stations, then charging can be performed, but human intervention increases operational complexity and time consumption

Engineering Contradiction:
Improvecharging operationVSAvoidtime for vehicle movement
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent implements automated guidance systems that enable vehicles to autonomously navigate to and from charging stations without human intervention. The system includes guidance infrastructure and vehicle-mounted sensors that work together to automatically position vehicles at charging stations, eliminating the need for manual driving while reducing operational complexity and time loss.

Inventive Principle:
Principle #25Self-service

3Extent of automation

If automated guided vehicle charging is implemented, then human intervention is reduced, but system complexity and initial setup requirements increase

Engineering Contradiction:
Improvecharging automationVSAvoidsystem complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent introduces an automated dispatch system that acts as an intermediary between vehicles and charging stations. This central control system coordinates vehicle movements, monitors battery status, and manages charging assignments, thereby achieving high automation levels while keeping individual vehicle and station components relatively simple. The dispatch system integrates various subsystems without requiring complex modifications to each component.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3860876B1Systems, apparatuses, and methods for charging multiple vehicles in close proximity
Publication Date: 2025.04.02 CUMMINS INC
  • EP3860876B1 patent drawingFigure 1
  • EP3860876B1 patent drawingFigure 2
  • EP3860876B1 patent drawingFigure 3

AI summary

Systems and apparatuses include a vehicle controller and a mobile battery charging device. The vehicle controller is engaged with a vehicle that includes a battery charging port coupled to a vehicle battery system. The controller is configured to communicate information indicative of a state of charge of a battery of the vehicle over a network. The mobile a battery charging device includes a drive system configured to propel the battery charging device, a charging interface configured to engage the battery charging port of the vehicle, and a controller. The controller is configured to receive the information of the state of charge of the battery system of the vehicle, determine a position of the vehicle, and command the drive system to move the battery charging device to align the charging interface with the battery charging port of the vehicle to charge the battery system of the vehicle.