BMS Test Platform — Basic Components
It meets the requirements for BMS total voltage simulation, total current charge/discharge simulation, single-cell simulation, active/passive balancing simulation, SOC estimation accuracy verification, safety‑related performance testing, battery pack fault simulation, and tests for overvoltage, undervoltage, reverse voltage, and power consumption. Meanwhile, its modular, scalable design allows each cell‑simulation unit to be controlled independently; the number of simulated cells can be customized according to the user’s specific testing needs. A robust battery model database supports various lithium‑ion chemistries—such as lithium iron phosphate and ternary—and accommodates single‑cell characteristics across different capacities, offering broad adaptability. Serial No. | Function Description | Implementation Method | Application ---|---|---|--- 1 | Single‑cell Simulation | Simulates battery cells to verify BMS single‑cell voltage/current sampling accuracy | 2 | Balancing Simulation | Simulates battery cells to test BMS active/passive balancing circuits | 3 | High/Low Temperature Simulation | Uses temperature‑simulation units to assess BMS temperature‑sampling accuracy | 4 | Insulation Resistance Simulation | Employs insulation‑simulation units to evaluate insulation‑detection functionality | 5 | Drive Capability Simulation | Drive‑capability simulation units determine relay and contactor behavior based on actual PACK configurations | 6 | Static Circuit Leakage Current Detection | Uses a digital multimeter to measure BMS power consumption under various operating conditions | 7 | SOC Accuracy Estimation | Programmable constant‑current source (real) – uses real or simulated constant‑current sources and battery‑pack charge/discharge curves to evaluate BMS SOC estimation capability. Simulated constant‑current source – software‑based simulation to assess the reliability of BMS SOC algorithms by importing historical charge/discharge data, modifying BMS input parameters, and observing SOC estimates to validate SOC estimation performance. | 8 | Total Current Simulation | Programmable constant‑current source simulates vehicle‑level total current | 9 | Total Voltage Simulation | Programmable constant‑voltage source simulates vehicle‑level total voltage | 10 | BMS Power Supply Over/Undervoltage/Reverse‑Voltage Simulation | Tests BMS response to supply overvoltage, undervoltage, and reverse‑voltage conditions, evaluating BMS adaptability to power‑supply variations | 11 | CAN Communication Simulation | Simulates VCU communication and charging‑handshake functions to verify BMS–battery communication in real‑world scenarios | 12 | Software Strategy Testing | Uses host‑computer software or industrial PCs to verify internal logic judgments within the BMS | 13 | Test Data Analysis & Storage | Host‑computer software or industrial PCs are used to collect, store, and analyze test data | 14 | Withstand Voltage/Insulation Testing | Uses withstand‑voltage and insulation testers for safety‑related compliance testing | 15 | Fault Simulation | The BMS test platform simulates operational faults to assess whether the BMS fault‑alarm system functions correctly.
- Product Description
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It supports BMS total‑voltage simulation, total‑current charge/discharge simulation, single‑cell simulation, active/passive balancing simulation, SOC estimation accuracy verification, safety‑related performance testing, battery‑pack fault simulation, and tests for over‑voltage, under‑voltage, reverse‑polarity, and power‑consumption conditions. In addition, the module features a modular, scalable design, with each cell‑simulation unit independently controllable; the number of simulated cells can be customized to meet the user’s specific testing requirements. A robust battery‑model database covers the characteristics of various lithium‑ion cells—such as lithium‑iron‑phosphate and ternary chemistries—with differing capacities, ensuring broad adaptability.
Serial number Function Description Implementation method Purpose 1 Single-cell battery simulation Simulated battery cell Testing the voltage/current sampling accuracy of BMS cells 2 Balanced Simulation Simulated battery cell Testing the BMS active/passive balancing circuit 3 High/Low Temperature Simulation Temperature Simulation Unit Testing the temperature sampling accuracy of the BMS 4 Insulation Resistance Simulation Insulation Simulation Unit Test the insulation detection function 5 Drive Capability Simulation Drive Capability Simulation Unit Determined based on the relays and contactors of the actual PACK. 6 Leakage Current Detection in Static Circuits Digital multimeter Testing the power consumption of the BMS under different operating conditions. 7
SOC Accuracy Estimation
Programmable Constant Current Source (True) The BMS’s state-of-charge (SOC) estimation performance is evaluated using charge–discharge curve data from a constant-current source–driven battery pack, both real and simulated. Simulated constant current source Software simulation
The reliability of the BMS SOC algorithm is evaluated through software simulation. By importing historical charge–discharge data into the software and modifying the BMS data, the estimated SOC values are examined to validate the BMS’s SOC estimation performance. 8 Total Current Simulation Programmable Constant Current Source Simulated total current of the actual vehicle 9 Total Voltage Simulation Programmable Constant Voltage Source Simulated total vehicle voltage 10 BMS Power Supply High/Low/Reverse Voltage Simulation BMS power supply Testing the BMS’s response to overvoltage, undervoltage, and reverse‑polarity conditions—i.e., the BMS’s power‑supply adaptability. 11 CAN communication Simulate VCU communication and the charging handshake function. Test BMS–battery communication in the actual vehicle 12 Software Strategy Testing Host computer software/Industrial PC Detect BMS internal logic judgments 13 Test Data Analysis and Storage Host computer software/Industrial PC Detect and store test data 14 Withstand Voltage/Insulation Test Withstand Voltage/Insulation Tester Used for safety compliance testing 15 Fault Simulation BMS Test Platform Simulate fault symptoms during product operation to determine whether the BMS’s fault‑alarm system is functioning properly.
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Huizhou Jinghui Instrument and Equipment Co., Ltd.
Service Hotline:400-1331-882
No. 13, Jinda Road, Huinan Science and Technology Park, Huizhou City, Guangdong Province
E-mail:jh@jhyq.com
