Multi-Vehicle Smart Charging via Daisy-Chain Extension

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Solution Overview

Problem

Vehicles stranded due to weather or traffic face challenges in combining resources to extend power when individual vehicles reach a low charge level, making it difficult to receive sufficient charge from a single source, especially when all vehicles are below a discharge threshold.

Innovation Solution

A system comprising adapters and a host smart charge receiver that allows vehicles to receive charge from multiple entities, including other vehicles, through a daisy-chain connection, managed by a smart charging system that optimizes charge distribution based on cost and type, enabling vehicles to draw power from multiple sources simultaneously.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a vehicle receives charge from a single source, then the charging system is simple, but the total charge received is insufficient when all vehicles are below discharge threshold

Engineering Contradiction:
Improvetotal charge receivedVSAvoidcharging system complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent combines multiple charging sources into a single integrated charging system. The host vehicle merges charge from multiple entities (first entity, second entity, and extension charger) through a common charging interface, allowing aggregation of insufficient individual charge sources into sufficient total charge reception.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The charging system is designed to universally accept charge from multiple types of entities including direct connections, extension chargers, and daisy-chained vehicles. The system can function with different configurations (single source, multiple sources, extension charger intermediary) making it multi-functional and adaptable to various charging scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If vehicles form a daisy-chain connection to share charge, then charge distribution flexibility improves, but connection establishment complexity increases

Engineering Contradiction:
Improvecharge distribution flexibilityVSAvoidconnection establishment complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The extension charger serves as an intermediary device that simplifies daisy-chain connections. Instead of requiring direct complex connections between multiple vehicles, the extension charger mediates the connection, providing a standardized interface that reduces connection establishment complexity while maintaining charge distribution flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The charging network is segmented into independent functional units (host vehicle, extension charger, distant vehicle) that can be connected in various configurations. This segmentation allows flexible daisy-chain arrangements where each segment operates independently but contributes to the overall charge distribution system.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a vehicle acts as extension charger for distant vehicle, then charging accessibility improves, but the extension charger's own charge level decreases

Engineering Contradiction:
Improvecharging accessibilityVSAvoidextension charger's charge level
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The host vehicle performing as extension charger is compensated by receiving charge from the first entity simultaneously. The system enables self-service where the extension charger's energy expenditure is offset by parallel charge reception, maintaining its own charge level while providing assistance to the distant vehicle.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The extension charger maintains continuous useful action by simultaneously providing charge to the distant vehicle and receiving charge from the first entity. This continuous dual operation ensures the extension charger remains operational and can continue assisting without interruption, preventing charge depletion.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP4585453A1Portable apparatus for discharging and receiving charge from multiple entities
Publication Date: 2025.07.16 VOLVO CAR CORP
  • EP4585453A1 patent drawingFigure 1
  • EP4585453A1 patent drawingFigure 2
  • EP4585453A1 patent drawingFigure 3

AI summary

A system is described. The system comprises one or more adapters (1402); a first entity (1404); a second entity (1406); and a host smart charge receiver (1408). The host smart charge receiver comprises a processor (1410) storing instructions in non-transitory memory that, when executed, causes the processor to: determine presence of the adapters electrically coupled to a host vehicle (1403); recognize at least one of the first entity and the second entity that are electrically coupled to the host vehicle through the adapters (1405); establish a connection between the host vehicle, the first entity, and the second entity (1407); communicate a command to one of the first entity and the second entity to function as an extension charger based on a first charge and a second charge received (1409); and provide an optimal charge to first battery packs of the host vehicle by providing at least one of the first charge and the second charge (1411).