Removable Modular Battery Pack for Vehicle and Tool Power Sharing
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Solution Overview
Problem
Existing work vehicles face challenges in efficiently powering both the integral hydraulic tools and ancillary electric power tools, particularly due to the limitations of hydraulic circuits and the increasing demand for electrically powered ancillary tools.
Innovation Solution
A modular battery system comprising a first battery pack for the vehicle and a second removable battery pack with a power converter, allowing the second pack to power the vehicle or an auxiliary tool, either directly or through a cable, and enabling charge exchange between vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single integrated battery system is used to power the electric work vehicle, then the vehicle has a simple power supply structure, but it cannot power auxiliary electric power tools independently or extend operational range
Solution Approach 1:
The battery system is divided into a first battery pack integrated with the vehicle and a second removable battery pack. This segmentation allows the second battery pack to be used independently for auxiliary tools or combined with the first battery pack for extended vehicle operation, providing power distribution flexibility without requiring a completely separate power supply system.
Solution Approach 2:
The second battery pack is designed with multi-functionality: it can power auxiliary electric power tools independently, extend the range of the electric work vehicle when connected to the first battery pack, and serve as a portable power source. This universal design resolves the contradiction by enabling one component to fulfill multiple power supply roles.
2Length of moving object
If hydraulic circuits are used to power ancillary tools, then the tools can be operated within the vehicle's immediate area, but the operational range is limited by the circuit length
Solution Approach 1:
The patent replaces the mechanical hydraulic circuit system with an electrical power delivery system using battery packs and power converters. This substitution eliminates the length constraints of hydraulic circuits, allowing auxiliary tools to be powered over greater distances through electrical connections without proportionally increasing system complexity.
3Adaptability or versatility
If electrically powered ancillary tools are used instead of hydraulic tools, then the tools offer greater operational flexibility, but the power supply range is extended beyond hydraulic limitations
Solution Approach 1:
The battery system is segmented into integrated and removable components, allowing the second battery pack to be strategically positioned near auxiliary tools while maintaining electrical connection to the vehicle's power management system. This enables electrically powered tools to operate with greater flexibility and extended range compared to hydraulic systems.
Data Source
AI summary
A modular battery for an electric work vehicle. The modular battery comprises a first battery pack configured to power the electric work vehicle. The modular battery comprises a second battery pack configured to power the electric work vehicle and to power an auxiliary electric power tool. The second battery pack is configured to be removable from the modular battery and wherein the second battery pack comprises a power converter.