New MAHLE Powertrain build & test facility to aid optimisation of EV battery development

New MAHLE Powertrain build & test facility to aid optimisation of EV battery development

26.03.2021: Phase 2 of MPT’s Battery Development Centre is a battery test facility to develop battery architectures, control systems, charging rates and cooling Follows phase 1 of MPT’s electrified powertrain strategy, to test and analyse cell and battery mo

    Phase 2 of MPT’s Battery Development Centre is a battery test facility to develop battery architectures, control systems, charging rates and cooling


    Follows phase 1 of MPT’s electrified powertrain strategy, to test and analyse cell and battery module performance under dynamic and steady-state climatic conditions


    Test data subject to rigorous MAHLE engineering analysis to enhance simulation and accelerate EV battery development




MAHLE Powertrain is continuing its investment in battery engineering with phase 2 of its electrified powertrain strategy, ePowertrain. This latest investment follows 2019’s launch of MPT’s battery module test and analysis facility, where battery modules can be tested in an array of steady-state and dynamic climatic conditions. Phase 2 builds on MPT’s electric development programmes to further aid electric vehicle battery optimisation, focusing on advanced understanding of battery architecture, control systems, charging rates, and cooling.  



“This next phase will provide our vehicle manufacturer and Tier 1 customers with vital battery technology insight, offering a boost to UK manufacturing competitiveness,” says Derek Wise, chief engineer for build and test. “We will be able to conduct development and validation with the aim of better understanding the technologies that support physical battery chemistry: cooling and control systems, for example, will be the key factors in optimising battery performance for specific applications.”



The new facility, incorporating build and three climatic test chambers, will come online in Q3 2021 for battery development and validation testing, and charge and discharge rates.



Phase 2 will add to MPT’s portfolio of electrical test capability giving a total of 1.25MW electrical power across six separate rigs and chambers. Some innovative new features, designed by MPT, will be included in the battery test chambers to increase flexibility. The test environment will be precisely controlled to mimic a variety of real-world conditions, with temperature control between -40oC and 80oC and humidity control between 24-93%.



“The elusive goal that has been mooted by the industry is the ‘million-mile’ battery,” continues Wise. “For such an ambition to be attainable, collection and strategic use of data relating to battery characteristics will be absolutely essential. It is not simply battery chemistry that is holding back advancement, but the control systems, cooling and charging rates, which have already advanced significantly in recent years as the industry better understands the technology.



“MPT’s EV simulation, design and software capabilities will be enhanced by the facility’s HIL and real-world data generation, helping to further accelerate development,” he concludes. “By significantly extending the lifecycle of EV batteries we address the second-use conundrum by effectively eliminating the challenge.”



MAHLE Powertrain’s new development is part of a larger EV development strategy, with further phases being rolled out in 2022. It will further address the automotive industry’s need for more focused battery development capabilities. From the real-world testing and strip-down of battery modules to battery pack build, test, simulation and analysis, MPT’s program aims to cover the entire EV battery development process.




Christopher Rimmele photos Mahle

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26.03.2021 / MaP

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