Stackable Battery Cargo Platform for Range and Fast Swapping

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Solution Overview

Problem

Current electric cargo transportation systems, such as vertical takeoff and landing aircraft and unmanned drones, face limitations in battery capacity and range, requiring frequent battery changes and lacking efficient methods for simultaneous cargo loading and battery swapping.

Innovation Solution

The integration of a cargo platform with a lithium-ion battery housing that allows for stacking to increase battery capacity, featuring exposed power contacts for parallel connection and load sensors, enabling simultaneous cargo loading and battery charging, compatible with various electric transit vehicles and aircraft.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If battery capacity is increased to extend range, then range is improved, but vehicle weight increases

Engineering Contradiction:
ImproverangeVSAvoidvehicle weight
Core Design Contradiction:
Duration of action of moving objectVSWeight of moving object

Solution Approach 1:

The battery system is divided into multiple modular battery packs that can be individually installed or removed. Each battery pack is a self-contained unit with standardized mounting interfaces, allowing the system to achieve extended range through multiple smaller units rather than one large heavy battery, thereby resolving the contradiction between range extension and weight increase.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The battery packs are arranged in a three-dimensional modular configuration within the cargo area, utilizing vertical and horizontal stacking arrangements. This dimensional approach allows efficient space utilization and weight distribution, enabling range extension without proportionally increasing overall vehicle weight burden.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If battery swapping is implemented to reduce downtime, then productivity is improved, but system complexity increases

Engineering Contradiction:
Improvecargo transport efficiencyVSAvoidbattery swapping system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The battery packs are designed with universal standardized interfaces including electrical connectors, mechanical mounting points, and control communication protocols. This universality allows the same battery pack design to be used across different vehicle types and configurations, simplifying the swapping system while enabling rapid battery replacement and improving cargo transport efficiency.

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

Solution Approach 2:

The battery packs incorporate self-diagnostic capabilities and automated identification systems that enable the vehicle control system to automatically detect battery status, compatibility, and charging requirements. This self-service functionality reduces the complexity of manual battery management and facilitates rapid, error-free battery swapping operations.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If modular battery packs are used to increase flexibility, then adaptability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvebattery configuration flexibilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The battery system is segmented into standardized modular packs that can be manufactured independently using automated assembly lines. Each module contains identical critical components and interfaces, allowing for streamlined manufacturing processes and quality control, thereby reducing overall manufacturing complexity despite the flexible configurations enabled by the modular design.

Inventive Principle:
Principle #1Segmentation

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

Enhances the range and capacity of electric transit vehicles by allowing stacked battery configurations, facilitating efficient cargo loading and battery management, suitable for both manned and unmanned aircraft, while ensuring safety and compatibility with traditional transportation systems.

Implementation Method 1

an electric cargo platform (10) including a housing (12) enclosing a lithium-ion battery (14)

Methodology Applied
Scientific EffectLithium-ion battery electrochemical energy storage: Battery (electricity)

Implementation Method 2

a load sensor operable to detect a load on the cargo platform (10)

Methodology Applied
Scientific EffectLoad sensing: Force

Data Source

PatentEP4008646B1Integrated battery cargo platform and related method
Publication Date: 2024.06.19 TEXTRON INNOVATIONS INC
  • EP4008646B1 patent drawingFigure 1~2
  • EP4008646B1 patent drawingFigure 3~5
  • EP4008646B1 patent drawingFigure 6

AI summary

An integrated battery cargo platform (10) includes a housing (12) having an exterior surface (16) and a structural strength to support cargo for transit on a top surface (18), and a battery (14) enclosed in the housing (12) with power contacts (24) exposed at the exterior surface (16).