Battery Swapping Balance Detection Using Weight and Tilt Sensing
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Solution Overview
Problem
Current battery swapping processes for electric vehicles pose safety risks due to potential unbalanced states of the mounting/dismounting apparatus, which can lead to accidents during battery handling.
Innovation Solution
A balance detection method and apparatus that utilize sensors, such as weighing sensors and balance sensors, to determine the balanced state of the mounting/dismounting apparatus by measuring weight and tilt angles, thereby preventing unsafe operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If balance detection is implemented using sensors during battery swapping, then safety performance is improved, but device complexity increases
Solution Approach 1:
The balance detection system is segmented into multiple independent weighing sensors positioned at different locations on the mounting/dismounting apparatus. Each sensor independently measures weight at its location, and the control unit processes individual sensor outputs to determine overall balance status. This segmentation improves reliability through distributed sensing while managing complexity by using simple, standardized sensor units.
Solution Approach 2:
A control unit serves as an intermediary between the weighing sensors and the battery swapping operation. The control unit receives data from multiple sensors, processes the information to determine balance status, and triggers appropriate responses (continuation or termination of swapping). This intermediary manages the complexity of coordinating multiple sensors while enabling comprehensive safety monitoring.
2Measurement precision
If multiple weighing sensors are deployed on connectors, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The measurement function is segmented across multiple weighing sensors positioned on different connectors of the mounting/dismounting apparatus. Each sensor provides independent weight measurement data, and the collective data from all sensors enables comprehensive balance assessment. This segmentation improves measurement precision by capturing weight distribution across the entire apparatus while maintaining relatively simple individual sensor units.
Solution Approach 2:
The weighing sensors serve multiple functions: they measure weight for balance detection, identify the presence of batteries, and provide data for control decisions. This multi-functionality improves measurement precision without proportionally increasing complexity, as the same sensor infrastructure supports multiple detection objectives.
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 method effectively improves the safety performance of electric devices by accurately detecting unbalanced states and taking preventive measures, thus reducing the risk of accidents during battery swapping.
Implementation Method 1
the weighing sensor can measure the weight borne by the connector easily and accurately
Data Source
AI summary
A balance detection method and apparatus and a station control system are provided to effectively improve safety performance of electric devices in the battery swapping process. The method includes: in a process of swapping a battery of an electric device, obtaining first data output by a first sensor; and determining, based on the first data, whether a mounting/dismounting apparatus is in a balanced state, where the mounting/dismounting apparatus is configured to dismount a battery to be dismounted from the electric device and mount a battery to be mounted onto the electric device.