ARTS Energy integrates an electronics design office, which has designed battery management systems for many years, to ensure optimum performance of your batteries. This long experience has enabled us to gain in-depth knowledge in relation to developing BMS (Battery Management Systems) and to file a number of patents for both Ni-Cd (Nickel Cadmium) and Ni-MH (Nickel Metal Hydride) and Lithium-ion alkaline technologies.
Our electronics design office engineers have developed charging and discharging management systems for protecting and optimising Ni-Cd battery life.
Our electronics design office engineers have developed charging management systems for Ni-MH batteries that ensure excellent autonomy, while curtailing heating, to optimise battery life and performance; temperature being one of the prevailed parameters in Ni-MH battery aging. These battery management systems have been implemented in a first Segway version fitted with Ni-MH batteries.
Our electronics design office validates battery gauge systems that allow the user to know the state of charge of his alkali and lithium-ion technology batteries.
The electronics design office team has been a major player in developing various Ni-MH “Smart Module Batteries” in the ARTS Energy range and also the hardware and software parts of the electronics integrated into these Ni-MH modules. The management system is adapted to the Battery Management System level based on the type of battery. Among these, we find solar application batteries, mobile application batteries, emergency batteries, for example. These battery modules are an excellent alternative to lead batteries in some applications.
The electronics design office works in continuously close cooperation with the rechargeable battery development team to ensure constant adaptation of the battery management algorithms to developments at cell level.
It also works with the battery design office in developing circuits that integrate as well as possible mechanically into products that will subsequently be manufactured by our Nersac site.
With regard to industrialisation of electronic boards, ARTS Energy is backed by companies reputed in the field of electronic board assembly.
To optimise global system costs, the electrical testing laboratory can provide development assistance to the customer in integrating all the battery management functions into its electrical system application. This prevents doubling up of the electronics inserted into the battery for its management and the electronics included in the customer’s system for controlling its application. The cost saving is obvious at hardware level based on the fact that a number of battery management functions are only performed via software functions.
With regard to Lithium-ion technology, from 1995 onwards, our electronics team took part in developing the first protection circuits to equip this type of battery. Initially, despite the lack of standard protection components ensuring protection functions for batteries with more than 4 cells in series, our design office developed solutions for multi-cell batteries in series and contributed modestly to developing new integrated battery management components.
ARTS Energy currently has access to a large number of Lithium battery management circuits placed on the market by different electronic component manufacturers. These circuits allow relatively easy management of batteries with many cells.
Based on the fact that battery protection circuits ensure safety functions, the electronics design office implements methods that guarantee high reliability and safety assurance in each of these functions.
The electronics design office has used Standard EN61508-based methods to ensure functional safety of electrical, electronic and programmable electronic safety-related systems. Thus, based on the safety integrity level (SIL) required by the system application, which can vary widely depending on the applications, the electronics design office will adapt the architecture of the electronic protection board. It is easily understandable that the safety integrity level will be different for a battery to be installed in an isolated environment, where there are practically no human beings nearby and for a battery installed in a location, in which many people live.
(Level of severity of a problem can be determined based on the Se, Fr, Pr and Av: AM to SIL 3 – increasing order)
Among applications requiring a high level of safety, we find medical devices, for example.
Lithium Battery Management Systems (BMS) are also developed by integrating the recommendations of our partner rechargeable battery manufacturers. To guarantee closest compliance with these recommendations, some developments are even validated by our partners; this allows us to provide even greater assurance in terms of the safety-related quality of our developments.
Lithium battery management circuits are also developed to meet battery standards such as EN62133, UL2054 and EN60950.
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