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DEsign and MOdelling for improved BAttery Safety and Efficiency

Periodic Reporting for period 1 - DEMOBASE (DEsign and MOdelling for improved BAttery Safety and Efficiency)

Reporting period: 2017-10-01 to 2019-03-31

Electric mobility is a reality we can experience on our roads and cities. Electromobility is moving forward, driven by drastic cost reductions, higher performances and improved availability to support new business models of autonomous driving passenger cars and new vehicle fleets. DEMOBASE falls within this context with the main objectives to cut down development and testing efforts for e-drivetrains at least by a factor 2 and to improve their efficiency by 20%. Safety will be fully managed and new concepts developed for fleet applications.

DEMOBASE is composed of 11 leading European partners with activities ranging from cells to vehicle to recycling. The main gain at vehicle level will come from global optimization taking into account interaction of the different specialties.

Objectives at battery level will be achieved by massive digitalization, substituting the today sequential cell development then battery system development by a parallelization of these activities. This new process can be achieved only using enhanced cells models including safety features to define the cell conception for manufacturing and realizing in the same time frame battery management. Objectives at vehicle level will be achieved with a novel approach to design light-weight chassis. It will be demonstrated on a urban demo vehicle that will integrate the advanced battery pack and novels wheel-tire systems with low suspension mass and low rolling resistance.
To secure project deliveries and reinforce collaborations which are an innovation key factor, DEMOBASE will be an original closed-loop project. In a first loop of the EV development, building blocks and their integration processes will be investigated and their efficiency assessed using Key Performance Indicators. Then the most efficient bricks and processes will demonstrate their added value in a second step in 6 months run starting from new high performances cells to operational EV. The DEMOBASE EV will be then evaluated on tracks.
WP1 System requirements, use cases and validation methodologies
The first work package is finished since April 2018. The requirements for battery (aging, BMS, etc.), recycling, wheels, chassis and the definition of Software platform and of preliminary risks are already completed.
• D1.1 Specification of SW platform (submitted)
• D1.2 Specification of EV and recycling (pending)

WP2 Simulation and modelling for seamless integration
This work package started in November 2017 and is still going on. Work on Model testing toolkit and FMI Composer integration has started as well as the first Amesim vehicle model simulation.
• D2.1 Collaborative Software platform first generation (Jul. 18)
• D2.3 Report on DEMOBASE model and simulation approaches (March 2019)

WP3 Safety
The Cell safety and aging characterization is ongoing. The first definition of abuse test procedure and measured parameters are partly specified.
• D3.1 Functional safety report on EV bricks (March 19)
• D3.2 DEMOBASE safe vehicle design (March 19)


WP4 Integration
Starts in January 2018 and is still ongoing. Development of the ECU board that will communicate with the BMS and the components are defined as well as the design parameters for vehicle´s wheel development.
• D4.1 Model integration set-up (Oct.18)
• D4.2 Model integration results (March 19)


WP5 Validation and KPI
The Validation and KPI work package will start in April 2019.

WP6 Dissemination and Exploitation
The first project publications are presented in conferences and workshops and also published in the Zenodo repository for open access. So far DEMOBASE lists seven scietific papers, two posters and four project presentations which are also uploaded to the DEMOBASE website: www.demobase-project.eu/dissemination/
• D6.1 Project website (submitted)
• D6.2 Project presentation and brochure (July 18)

WP7 Management and Coordination
Since the beginning of DEMOBASE three project meetings were held in Paris (Kick-off meeting October 17), Lund (April 18) and Torino (October 18).
Every two months a Jour fixe with all work package leaders is held to update the project status, work progress and to define the next activities.
• D7.1 Project Guidelines (submitted)
• D7.2 Open research Data (submitted)
DEMOBASE is developing an overall methodology based on massive digitalization and seamless processes to sharply faster Electric Vehicle (EV) development time, to improved safety and to lower cost, specifically of battery systems and chassis from subcomponent to recycling.
Today EV vehicle safety concept is based on fail safe approach, the project targets for the battery system fail operational feature. It means that in case of cell failure or thermal runaway, the battery will sustain the EV performances. This concept is a main added value for the coming vehicle fleets for which availability is a key factor.
Today chassis development required very large investment with stamped steel technology whereas DEMOBASE vehicle will cut development cost by a factor 10 using a tubular structure while keeping the highest European safety standard for M1 class vehicles.
DEMOBASE is an original closed-loop project. In a first loop of the EV development, building blocks and their integration processes will be assessed using Key Performance Indicators. Then the most efficient bricks and processes will demonstrate their added value in a second step in 6 months run starting from new high performances cells to operational EV.