MaxEye Technologies Battery modeling and simulation is an excellent way to predict and optimize batteries basic parameters like state of charge, battery lifetime, thermal and charge/discharge characteristics. Over the years, many different types of battery models have been developed for different application areas. This Battery Model is mainly to use in real-time Battery Management System (BMS) HIL application’s. Battery Model accurately simulates the behavior of a physical lithium ion battery with real life conditions which can be used in many test scenarios to test the BMS.

The model simulates,

• Different charge/discharge drive profiles

• Voltage of the cells

• Temperature of the cells

• FEC: RS+Convolutional code

• State of charge

• Fading characteristics

The simulation model allows users to create customized battery modules/packs based on the series or parallel configuration of the multiple cells. The model accurately simulates the battery characteristics under different operating conditions in real-time. The number of RC pairs are selecting based on the physical battery characteristics.

Battery Simulation

Battery equivalent circuit models (ECMs) are widely employed in battery management applications. The battery model parameters are being varies according to the operating conditions, such as the battery state of charge (SOC), ambient temperature. The Equivalent Circuit Model (ECM) consists of open circuit voltages source, internal resistance, parallel resistances and capacitors pairs.

Thermal Simulation

Battery models must account for thermal effects because of the paramount importance of temperature in kinetic and transport phenomena of electrochemical systems. The value of the ECM components depends on SOC and inner cell temperature. In general, the thermal parameters of cell packs are different from those of isolated cells; developed battery model is considered the cell temperature effects with in cell, module and packs level.

Aging Simulation

Battery ageing simulation is an important in e-mobility applications. The performance degradation of lithium-ion batteries has a strong influence on electric vehicles’ range and cost. Modeling a cycling ageing is a major challenge in electric vehicle application. During a battery’s lifetime, its performance or health tends to deteriorate gradually due to irreversible physical and chemical changes that take place with usage. The performance of the battery at its specific number of cycles can be simulated.

Why Battery Model Simulator?

BMS is a critical module in electric vehicle that continuously monitors the battery health, balances the cell voltages. It is very important for the automotive manufacturers to validate the BMS devices before deployment to ensure the safety. The test system needs to accurately simulate the battery cell stack voltages & the required sensors to the BMS.

Using physical batteries in a test system could not be a right procedure as physical batteries can overheat and sometimes can cause fire during some tests. Thus a battery simulation plays a main role in maintaining the safety features while testing the BMS. We can also simulate the Aging characteristics of the battery within short time while it will take much longer time to observe in physical battery.

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