Microvast Holdings, Inc., a technology innovator that designs, develops and manufactures lithium-ion battery solutions, has announced the fifth generation of its Battery Management System, called BMS 5.0. The system is expected to be available late 2023.
The Battery Management System (BMS) is the brain of the battery pack, a critical component that measures cell voltages, module temperatures, and battery pack current.
It also detects isolation faults and controls the contactors and the thermal management system. The battery management system consists of electronics and software to protect the operator of the battery-powered system and the battery pack itself against overcharge, over-discharge, overcurrent, cell short circuits, and extreme temperatures.
Highlights and differentiators of BMS 5.0:
Microvast’s new BMS 5.0 supports a lower total cost of ownership by extending the battery pack lifetime through more efficient and accurate measurements of the state of charge, health, and power.
The BMS 5.0 has been developed with safety and security first engineering practices, which improves overall vehicle safety and eliminates catastrophic failures through meeting automotive functional safety “ISO 26262” and automotive cybersecurity “ISO 21434” standards. Microvast’s BMS 5.0 has built-in digital twin technology, which enables early prediction and prompt maintenance.
De facto battery state estimation standards: State of charge estimation accuracy with a minimal error rate using the closed-loop SOC estimation strategy based on Kalman filtering, ampere-hour integration, static correction, two-terminal correction, and proprietary algorithms.
Data-driven machine learning and physics-based models with cloud support, including self-learning online simulations and computation of capacity and internal resistance, monitoring remaining useful life (RUL) and state of health (SOH) with negligible accuracy error rate.
Fully configurable for all Microvast cell chemistries and battery characteristics.
Microvast’s 3P (Predict-Prevent-Protect) safety management: Microvast’s Digital Twin protects cells from damage, abuse or failure by actively intervening with software controls and specialized electronics to predict internal resistance, failures and isolating the failing components to prevent failures for the rest of the battery pack. BMS 5.0’s thermal runaway detection identifies cell failures and supports two-way wake-up of primary and replica boards during hibernation with pressure detection sensors.
State of the art equalization: Maximum battery pack capacity based on the custom consistent power balancing strategy.
Microvast is a technology innovator that designs, develops, and manufactures lithium-ion battery solutions.
Microvast is renowned for its cutting-edge cell technology and its vertical integration capabilities which extend from core battery chemistry (cathode, anode, electrolyte, and separator) to modules and packs.
By integrating the process from raw material to system assembly, Microvast has developed a family of products covering a breadth of market applications, including electric vehicles, energy storage, and battery components.
Microvast was founded in 2006 and is headquartered near Houston, Texas.