External Battery Thermal Management for Idle and Charging Machines
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Solution Overview
Problem
Internal thermal management systems in electric machines are not designed to operate effectively in extreme temperatures, leading to reduced battery capacity and potential failure when batteries are not in use, such as during non-operation or charging, impacting performance and lifespan.
Innovation Solution
A standalone external thermal management system that includes thermal management components and a controller, separate from the machine, which can be powered externally and communicate with the machine's controller to control thermal management of the battery system, ensuring optimal temperature range even in extreme conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an internal thermal management system is used in the machine, then the system structure is integrated and compact, but the system cannot effectively manage battery temperature in extreme conditions when the machine is not operating
Solution Approach 1:
The thermal management system is divided into two independent parts: an internal thermal management system integrated into the machine for operation期间的管理, and an external thermal management system that operates independently when the machine is not in use. This segmentation allows each system to be optimized for its specific operational context, resolving the contradiction between integration and adaptability.
Solution Approach 2:
The external thermal management system acts as an intermediary that provides thermal management capabilities when the internal system cannot operate. It connects to the battery system through a power connector and controller interface, enabling temperature management in extreme conditions without requiring the machine to be running.
2Device complexity
If the machine operates without an external thermal management system, then the system complexity is reduced, but the battery performance and lifespan are degraded in extreme temperatures
Solution Approach 1:
The external thermal management system performs preliminary thermal management actions when the machine is not in use, preparing the battery for optimal operation. By managing temperature during charging and non-operation periods, the system prevents thermal damage before it affects battery performance and lifespan.
Solution Approach 2:
The external thermal management system is designed as a separate, potentially temporary solution that can be connected or disconnected as needed. It provides thermal management capabilities only when required (during charging or non-operation), rather than being a permanently integrated complex system.
3Device complexity
If the internal thermal management system is the only system, then the control architecture is simple, but the system cannot maintain optimal battery temperature during charging or non-operation
Solution Approach 1:
The control architecture transitions from a static internal-only system to a dynamic multi-mode system. The controller can switch between internal thermal management during operation and external thermal management during charging or non-operation, adapting the control strategy to the current operational state.
Solution Approach 2:
The external thermal management system provides universal thermal management capability that covers all operational states: during machine operation, during charging, and during non-operation. This multi-functionality ensures optimal battery temperature regardless of the machine's operational state.
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
The external thermal management system maintains battery health by preventing overheating or overcooling, thus enhancing battery performance and operational life, even when the machine is not in use, by providing independent thermal management capabilities.
Implementation Method 1
one or more thermal management components are configured to facilitate thermal management of the battery system
Implementation Method 2
the controller is configured to communicate with another controller of the machine
Data Source
AI summary
A thermal management system for a battery system of a machine includes one or more thermal management components, a power connector, and a controller. The thermal management system is separate from the machine. The one or more thermal management components are configured to facilitate thermal management of the battery system of the machine. The power connector is configured to provide power to the thermal management system from a power source external to the machine. The controller is configured to communicate with another controller of the machine to allow the controller to control the one or more thermal management components, wherein the other controller is configured to control the thermal management of the battery system of the machine.