EV BMS Functional Verification Automated Test System Model 8700

EVBMSFunctionalVerificationAutomatedTestSystem
Key Features
  • Cell simulator with current measurement function: verifies the voltage measurement accuracy of the Cell Supervision Circuit, status of balanced current, and status of circuit board leakage current
  • Bidirectional current source: simulates physical current passing through the current sampling unit, allowing for calculation for calibration values (Offset & Gain) and writing parameters into memory (EEPROM), used to verify current measurement accuracy and keep track of current measurement status
  • High-voltage power supply: simulates battery pack voltage changes for verifying voltage measurement accuracy and insulation monitoring circuit of the Battery Management Unit (BMU)
  • Supports UDS diagnostic service functions for obtaining the unlock procedures as required by the device under test
  • Supports common automotive protocols such as CANbus, CANFD, and LINbus
  • Can be integrated with system components to perform full-featured automated testing and verify the status of the Battery Management System (BMS), high-voltage interlock function, status of the power management circuit’s voltage conversion, and accuracy of the temperature measurement circuit

Chroma 8700 EV BMS Functional Verification Automated Test System integrates a battery cell simulator to simulate battery cell voltage changes, a bidirectional current source to simulate physical current flow through current shunt of CSU, and a high-voltage power supply to simulate battery pack voltage changes. When combined with integration components, the 8700 enables a wide range of tests on the battery management system. The architectural diagram below shows the battery cell simulators integrated into the automated BMS test system.

Standard Test Items:

Battery Management Unit

  • BMS Power Supply Test
  • Keyon, Runon, ACC, CP, CAN Wake-up Conditions
  • CANbus Communication Test
  • Temperature Test
  • High-Voltage Interlock (HVIL) test
  • Power Consumption Test
  • High-Voltage Relay Test
  • High-Voltage Measurement Test
  • Insulation Circuit Status Test

Cell Supervision Circuit

  • Battery Voltage Measurement Test
  • Battery Balancing Circuit Test
  • Cell Temperature Measurement Test
  • BMS Power Supply Test
  • CANbus Communication Test

Current Sampling Unit

  • CANbus Communication Test
  • Current Measurement Test
  • Current Calibration Test

Standalone Units and Accessories

Battery Cell Simulator

Chroma 87001

  • Channel Specifications: 25W/ 5V/ 5A
  • Supports series-parallel function: Simulates battery pack voltage(<1,000V) of up to 240 cells in series
  • Current measurement: Each channel has 4 current ranges to choose from
  • Quick voltage rise/fall rate adjustment: 1ms
  • Equipped with Ethernet and CANbus control interfaces

High Voltage Power Supply

 

The following units are available as per voltage requirements:

Bidirectional Current Source

 

The following units are available as per current requirements:

BMS Auxiliary Power Supply 12V/24V Simulation

 

The following units are available as per voltage and current requirements

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All specifications are subject to change without notice.
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Description

BMS Functional ATS for Electric Vehicle

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