Battery Pack Dynamic Energy Limiting for Transport Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Battery packs face challenges in balancing size, weight, and energy capacity while ensuring safe transport and optimal energy provision, with existing technologies struggling to manage energy levels effectively during transport and use.
Innovation Solution
A battery pack with a control device that limits energy storage to a reduced value during transport and automatically lifts this limitation upon receiving a predetermined signal, using sensors and IoT services to monitor conditions and ensure safe transport, and then restore full energy capacity upon charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the energy content of battery packs is maximized to provide more energy during use, then the energy provision capability is improved, but the safety during transport deteriorates due to higher energy content
Solution Approach 1:
The patent implements dynamic energy management by enabling the battery management system to adjust the available energy content of the battery pack based on operational context. During transport, the system dynamically limits the energy content to a reduced value, while during normal operation, the full energy capacity is available. This dynamic adjustment resolves the contradiction between maximizing energy provision and ensuring transport safety.
Solution Approach 2:
The patent changes the energy content parameter of the battery pack based on operational state. The battery management system modifies the effective energy capacity parameter - reducing it to a predetermined reduced value during transport mode, and restoring it to the design-related storable energy value during normal use. This parameter change allows the same battery pack to satisfy both high energy provision requirements and transport safety requirements.
2Reliability
If the energy content is reduced to ensure safe transport, then the transport safety is improved, but the energy provision capability deteriorates
Solution Approach 1:
The battery management system dynamically switches between two operational modes: transport mode with reduced energy content for safety, and normal operation mode with full energy capacity for optimal performance. The system automatically detects the operational context and adjusts the energy content accordingly, ensuring that the battery pack provides sufficient energy during use while maintaining safety during transport.
Solution Approach 2:
The effective energy content parameter of the battery pack is changed based on operational requirements. During transport, the parameter is set to a reduced value for safety; during normal operation, the parameter is restored to the design-related storable energy value. This parameter switching mechanism allows the battery pack to adapt to different operational demands without compromise.
3Duration of action of moving object
If the design-related storable energy is maximized to extend usage duration, then the energy availability is improved, but the risk during transport deteriorates
Solution Approach 1:
The patent implements dynamic energy content adjustment that extends usage duration during normal operation while reducing transport risk. The battery management system maintains the design-related storable energy value for extended usage during normal operation, but automatically reduces the energy content to a predetermined reduced value during transport, thereby eliminating the harmful high energy content risk during transport.
Solution Approach 2:
The energy content parameter is changed based on operational context - maintained at the design-related storable energy value for extended usage duration during normal operation, and reduced to a predetermined reduced value during transport to minimize risk. This parameter adaptation allows the battery pack to achieve both extended usage duration and reduced transport risk.
Data Source
Figure 1~2
AI summary
The invention relates to a battery pack (1) for an electrical device, in particular for an electric hand tool and/or electric garden tool, comprising several battery cells (2) and a control unit (3) configured to limit the energy (E1) that can be stored by the battery pack (1) to a predefinable reduced energy value (E2); to release the limit only when the control unit (3) has received at least one predefinable release signal, so that the energy (E1) that can be stored by the battery pack (1) is available again after a corresponding charging process. The invention further relates to a method for operating a battery pack (1).