Dynamic Power Allocation for Battery Pack Testing
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Solution Overview
Problem
Current high-power battery pack test systems are inefficient due to high operational costs and low utilization, as they are typically configured for peak power levels that occur rarely, lack scalability, and cannot integrate with other test systems, leading to excessive hardware requirements and inflexible configurations.
Innovation Solution
A system with a power allocation manager and power router that dynamically allocates power from a cluster of power units to multiple test channels, using a switch matrix and programmable logic controller to optimize power distribution based on test plans, allowing for scalable and flexible configuration of test bench control units to accommodate varying power demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If test systems are configured for peak power levels, then power output capability is improved, but hardware cost and complexity increase
Solution Approach 1:
The system divides the power delivery function into multiple independent power units, each capable of operating at lower power levels individually. These segmented units can be combined to achieve peak power when needed, avoiding the need for a single complex high-power system.
Solution Approach 2:
The power units are designed to be universal and reconfigurable, serving multiple test channels and different power requirements. The same power units can be dynamically allocated to different channels based on demand, making the hardware versatile rather than dedicated to specific peak power configurations.
2Productivity
If multiple test channels are provided, then testing capacity is improved, but power utilization efficiency decreases
Solution Approach 1:
The system implements dynamic power allocation where power units are not statically assigned to specific channels but are dynamically routed based on real-time testing requirements. This dynamic approach allows the system to match power delivery to actual demand, improving utilization efficiency while maintaining multi-channel testing capacity.
Solution Approach 2:
The control system monitors power usage across multiple channels and uses this feedback information to optimize power allocation. By continuously adjusting power distribution based on actual testing needs, the system avoids energy waste while maintaining the ability to serve multiple test channels simultaneously.
3Reliability
If dedicated test bench systems are provided for each device, then testing reliability is improved, but system scalability decreases
Solution Approach 1:
The system uses universal power units and a common control architecture that can serve multiple devices under test. This universal design maintains reliability through proper isolation and control while enabling easy scalability - new test channels can be added by connecting additional devices to the existing power units and control system without requiring completely dedicated infrastructure for each device.
Data Source
AI summary
A battery pack test system includes a power cluster, a power router, a power allocation manager, and a plurality of test bench control units. The power cluster includes a plurality of power units. The power allocation manager is configured to dynamically switch allocations of power from individual power units of the plurality of power units to a plurality of test channels each connected to a different device under test. The plurality of test bench control units are each configured to interface with the power router and a different corresponding device under test. Each of the test bench control units includes a plurality of measurement sensors for measuring characteristics of the corresponding device under test.