Battery Management System

Huawei BMS consists of BCU (Battery Control Unit) and BMU (battery monitor unit). BCU is responsible for charge & discharge management, SOX estimation, fault protection, and communication with the vehicle system. BMU is in charge of battery voltage and temperature sampling and battery balancing.

Home DriveONE DriveONE-Cloud Battery Management System

Voltage Power Compatibility

SOC Error within ±3%

Technical Specifications

Item	Specifications
BCU Dimensions （X * Y * Z）	250mm100mm20mm
BMU Dimensions （X * Y * Z）	170mm100mm20mm
State Estimation Error	SOC ≤ ±3%; SOH ≤ ±3%
Operating voltage range	9～16 Vdc
Total voltage detection	0～1000 Vdc，±0.5%F.S.
Cell voltage detection	±3 mV, can collect up 56-channel voltages
Cell temperature detection	±1 ℃, can collect up to 24-channel temperatures
Functional safety	ISO 26262 ASIL C

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