Battery Management Software for Electrochemical Impedance Spectroscopy (EIS)

BMS-EIS-SW new

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The NXP BMS EIS Software Enablement Package accelerates development and testing of NXP's EIS solution on customer batteries. It includes a user-friendly GUI and BMU EIS firmware. Ideal for rapid prototyping and validation, it supports flexible excitation sources tailored to various battery configurations, and system requirements.

Diagram

Battery Management Software for Electrochemical Impedance Spectroscopy (EIS)

Battery Management Software for Electrochemical Impedance Spectroscopy (EIS)
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Features

Middleware Level Features

  • Communications delay measurements (R2R), enables precise propagation delay measurements
  • EIS Measurement Flow with Software Compensation - Manages the measurement sequence and applies dynamic corrections
  • Advanced Synchronization Options - Provides fine-grained timing control for coordinated measurements
  • Battery junction box (BJB) frequency calibration - ensures accurate frequency settings for impedance measurements

BMS SDK Level Features

  • DFT Coefficient Calculation - Extracts from user input parameters the DFT coefficients
  • Current/Voltage Compensation - Corrects signal deviations for consistent and reliable results
  • Complex impedance Calculation - Computes impedance values essential for battery diagnostics and modeling
  • Transmission of EIS Coefficients to BCC/BJB Devices - Enables downstream processing and integration
  • Support for communication delay measurements on the BCC/BJB and GTW

EIS GUI Features

  • Configurable number of Battery cell controller devices from 1 to 12
  • Excitation control for different excitation sources
  • Nyquist plots for impedance measurements and additional debug information

Supported Devices

  • BMX6X02: General-Purpose BMS Communication Gateway and EIS Synchronization Controller
  • BMA8420: Battery Junction Box Monitor IC with EIS Capability
  • BMA606X: Wireless Battery Management System Link
  • BMA7418: 18 Channel Li-Ion Battery Cell Controller IC ASIL D with EIS
  • TAA3033: TAA3033 Active Precharge Controller IC

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