Automotive certified battery management system
Develop and demonstrate a control system for lithium-ion batteries for use in hybrid and electric cars,
which fullfils automotive requirements and standards for control systems in cars. It will be the first
commercially available system on the market to fullfil these requirements. Two European automotive
OEMs participate in the development and test.
The purpose of the project is to develop the first commercially available battery management system
(BMS) that is certified according to automotive standards for control systems and electronics used in
mass produced cars. This BMS is to be used with lithium-ion battery packs primarily in electric and hybrid
vehicles, but will also be applicable in industrial machines, ships, trains and power storage systems such
as for photo voltaic or grid batteries.
No current and commercially available BMS on the market fulfills the requirements needed to achieve
automotive certification, and this is an absolute requirement of most OEMs when they go into mass
production of their electric vehicles. Large OEMs have developed such systems in-house, but most OEMs
and their suppliers do not have the skills and means to do it.
Many OEMs and their suppliers have expressed an interest in Lithium Balance developing such an
automotive certified BMS, and they have contributed to the first design and prototypes as a proof-ofconcept
that was successfully tested in 2012. This concept is for a modular and flexible platform that can
be used with any battery, in any application from 3-1000V and at very low cost. It will have full redundancy
so it continues to operate and shuts down the battery safely in case of an accident. The measurement
accuracy will be within 3mV with one temperature sensor per cell and it measures SOC and SOH
accurately per cell.
The goal of this project is therefore to finalise the development of this BMS platform according to the
quality procedures for development and production demanded by the automotive standards. Two European
OEMs will participate in the project with design input and subsequent validation test as well as a long term
demonstration test in order to achieve the automotive certification of the new BMS.
This project is of direct relevance to the development targets of the EUDP Technology Strategies. The
lithium battery is the core technology that makes it possible to make electric vehicles of any practical use,
and it is not possible to use lithium batteries without a good BMS. As the main application will be for
electric and hybrid vehicles, there is an obvious link to the Energy Efficiency strategy and its related focus
on the transport area. Electric vehicles is the most energy efficient drive train technology available and
provided they are charged from wind energy it is the only drive train that gets close to 0 g/km CO2
emission. In addition electric vehicles appear a promising power storage solution, which is needed in the
future to allow higher deployment of renewable energy. The project will therefore also support the
Technology Strategies concerning Solar and Wind Energy.
Key figures
Category
Dokumenter
Participants
Partner | Subsidy | Auto financing |
---|---|---|
Lithium Balance A/S | 2,29 mio. DKK | 2,29 mio. DKK |
Contact
DK-2765, Danmark