Energy Storage System Fault Tolerance via Dual Data Transfer Modes
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Solution Overview
Problem
Electric vehicles face challenges in maintaining high availability and safety of energy storage or transformation systems due to complex electrochemical, thermal, and ageing dynamics, leading to potential faults and hazardous situations such as short-circuits and power losses, which existing monitoring and control systems struggle to manage effectively.
Innovation Solution
A method that involves transferring energy storage or transformation system condition data through multiple data transfer modes to ensure continued operability despite faults or errors, using redundant communication buses and protocols to maintain system availability and safety, particularly in hazardous vehicle situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advanced monitoring and control systems are implemented to manage safety issues, then safety supervision capability is improved, but system complexity increases
Solution Approach 1:
The system is divided into multiple independent electronic units (first electronic unit for data provision, second electronic unit for data reception and control) with clearly defined interfaces. This segmentation allows the complex monitoring and control functions to be distributed across modular components, improving safety supervision capability while managing system complexity through structured division of labor.
2Reliability
If a single data transfer mode is used between electronic units, then system simplicity is maintained, but availability decreases when faults occur
Solution Approach 1:
The system is configured with multiple data transfer modes (first data transfer mode and second data transfer mode) in advance, along with the capability to detect faults and switch between modes. This preliminary preparation ensures that when a fault occurs in one data transfer mode, the system can immediately switch to an alternative mode without loss of availability, while the complexity is managed through pre-planned fault tolerance architecture.
3Object-affected harmful factors
If the system shuts down upon detecting a fault in data transfer, then safety is ensured, but availability decreases
Solution Approach 1:
The system dynamically adapts its operation based on fault detection results. When a fault is detected in the first data transfer mode, the system evaluates the situation and can either switch to the second data transfer mode to maintain operation or shut down if the fault indicates a serious safety hazard. This dynamic response allows the system to balance safety requirements with availability, avoiding unnecessary shutdowns while ensuring safety when truly needed.
Data Source
AI summary
A method for improving the availability of an energy storage or transformation, EST, system of a vehicle is described. The method comprises transferring the EST condition data from the first electronic unit by means of a second data transfer mode, receiving a fault or error regarding the EST condition data in relation to the first data transfer mode, determining whether or not an EST system criterium is achieved, the EST system criterium comprising at least that the EST condition data transferred by the first electronic unit by means of the second data transfer mode is received by the second electronic unit, in response of achieving the EST system criterium, operating the EST system despite the fault or error and using the EST condition data transferred by means of the second data transfer mode.