New Battery Cell Controllers Enables Improvement in Functional Integration and Measurement Capability
NXP Semiconductors N.V., world’s leader in securing connectivity solutions recently launched an innovative product portfolio of Battery Cell Controller for wide-ranging automotive battery management systems. Battery Cell Controller is a consolidation of communication transceivers, power management SBCs (system basis chips) and automotive MCUs (microcontrollers). The new development offers readily operational reference design platforms to control the higher-capacity energy storage in the modern electric vehicles. In addition, the platforms are designed for helping the automakers in delivering next-gen electric and hybrid vehicles with less development risk and greater speed.
MC33772B and MC33771B, the new Battery Cell Controllers helps in advancement of functional integration and measurement capability. It includes
- Helps with highly flawless cell impedance calculations, benefitting the state-of-health monitoring and the process is done by means of the exclusive synchronized current sensing.
- It integrates nearly 0.8 Ohm MOSFETs along with given timers to every cell for simultaneous and efficient charge-balancing of every cell.
- Offers fixed functional safety mechanisms as well as diagnostics for effectively supporting highest functional safety objectives.
New Lithium Ion Battery Simplifies Controlling and Monitoring Battery Systems
Toshiba Infrastructure Systems & Solutions Corporation (TISS), Japan recently announced its battery system utilizing SCiB™ lithium ion battery being certified as wholly-compliant with the highest SIL4*1 (safety integrity level) of the European Norm (EN) 50126 standards along with 50129, RAMS (Risk assessments and method statements) safety requirements. This product is mandated to be rolling stock across Europe.
Lithium-ion battery system of TISS can hold nearly 28 battery modules that are connected in series as well as integrates BMU (battery management unit), SSU (safety supervisor unit) along with other circuits. On a broader aspect, BMU offers information regarding battery temperature and voltage, whereas SSU monitors functional safety of individual battery modules.
Note: Compliance with EN 50129 and EN 50126 is mandatory for rolling the stock and vehicle-mounted components and systems for Europe.
Key Features of the Newly Developed Battery System Utilizing SCiB™ Lithium Ion Battery
It holds a structure that helps in catering to stringent safety measures of RAMS standard. The internal structure is highly resistant to the thermal runaway as well as ignition. Moreover, neither battery system nor enclosure requires integration of protection against the internal short-circuit. The battery management systems based on SCiB™ can dispense with the low-temperature protection. Improved safety of the SCiB™ helps in simplifying controlling and monitoring battery management systems, thereby increasing reliability as well. Monitoring systems that offer multi-layer safety exclusively comprises of hardware, eliminating risk of mutation.
Apart from this, SCiB™ is adopted in Japan for the hybrid diesel generator-battery power systems as well as emergency running systems, benefitting in rolling stocks. TISS is likely to leverage EN certification for strengthening the company’s battery system business, beneficial for rolling stocks in Europe and across Japan.
A recent study by Future Market Insights on battery management system market indicates, growing demand from OEMs in e-bikes and e-vehicles industry for better storage capacity is expected to dive-in lucrative production sales opportunities for the manufacturers in battery management system market.
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