Battery Management System (BMS) Test Products

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Battery Management System (BMS) Test Products

The introduction of new storage technologies and the interconnection of multiple..

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DEICO's PXIe Systems offer comprehensive modular solutions for diverse industrie..

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All test systems need data acquisition structures to collect and analyze data...

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Battery Management System (BMS) Test Products

The introduction of new storage technologies and the interconnection of multiple energy storage cells to form modules or packs require an intelligent battery management system (BMS). A Battery Management System (BMS) is an embedded unit performing critical battery functions, including cell monitoring and balancing, pack charge and discharge control, safety, and communications. The BMS is also growing in importance due to the increasing use of batteries in the area of electric mobility (e.g., passenger cars, forklift trucks and conveyor vehicles), for power tools or stationery storage. It assumes key safety, control and regulation functions. For example, it monitors various parameters such as voltage, current and temperature in order to determine the state of charge (SOC). In addition, the BMS is responsible for thermal and energy management, cell balancing and performance. Reliable functionality can only be guaranteed if the BMS is validated by a variety of tests with different cell states, environmental conditions and error scenarios. The BMS must be tested early in development to optimize control algorithms, as well as during manufacturing to ensure reliable functionality.

Reproducible testing and optimization of the BMS
Emulation of individual cells, as well as modules and packs at cell level
Validation of all BMS development steps with respect to hardware and software
Validation of end products

Testing of newly developed algorithms (balancing, SOC, SOH)
Tests with passive and active balancing circuits (inductive and capacitive)
Verification of measuring accuracy in various operating situations

Balance Current

Can Communication

State of Charge Test

State of Health Test

Alarm Function Test

Charge Signal Simulation

Balance Current

I/O Test

Quiescent Current

Temperature Accuracy

Voltage Accuracy

Current Accuracy

During BMS development, engineers need a way to reliably test the BMS under real-world conditions to complete their verification and validation plans. At this stage, test strategies such as Hardware-in-the-Loop (HIL) testing are often performed. HIL testing involves simulating physical inputs and external connections to the pack while monitoring its outputs and behavior relative to design requirements.
Accurately simulating all the conditions to which a BMS may be subjected during real-world operation is not easy. However, one must consider the long-term cost of skipping testing over a full range of conditions, remembering that any given condition could lead to a critical failure in the field. In the end, simulating nearly every combination of cell voltages, temperatures, and currents you expect your BMS to encounter is really the only way to verify that your BMS reacts as you intended to keep your pack safe and reliable.

The performance of electric vehicles depends on many factors such as battery voltage, battery life and health, safety, charge-discharge rates, etc. All these factors are indirectly linked between the rechargeable batteries in electric vehicles and the Battery Management System. Therefore, in order to obtain an efficient output from these batteries, there is a need to monitor and control various battery parameters. Monitoring and control of these parameters is performed by a Battery Management System (BMS) in all electric vehicles.
Real-time information from these batteries help timely actions for better battery life and safe operation. As a result, it contributes to the increase in the performance and durability of Electric Vehicles (EVs), while ensuring complete tracking of all functions performed by the battery.

The role of the Battery Management System (BMS) in Electric Vehicles (EVs) are:

Battery protection in order to prevent operations outside its safe operating area.
Battery monitoring by estimating the battery pack state of charge (SoC) and state of health (SoH) during charging and discharging.
Battery optimization thanks to cell balancing improves the battery life and capacity, thus optimizing the driving range for Hybrid (HEVs), Plug-in Hybrid (PHEVs) and Battery Electric Vehicles (BEVs).

Battery Management System (BMS) Test Products

12 CH Battery Cell Simulator

PART NUMBER: DE3000

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Battery Management System (BMS) Test Products

Battery Management System (BMS) Test Products

Balance Current

Can Communication

State of Charge Test

State of Health Test

Alarm Function Test

Charge Signal Simulation

Balance Current

I/O Test

Quiescent Current

Temperature Accuracy

Voltage Accuracy

Current Accuracy

Battery Management System (BMS) Test Products

12 CH Battery Cell Simulator

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