{"id":14192,"date":"2025-06-18T11:57:38","date_gmt":"2025-06-18T09:57:38","guid":{"rendered":"http:\/\/www.tgm.solutions\/?post_type=fallstudien&p=14192"},"modified":"2025-06-18T11:57:40","modified_gmt":"2025-06-18T09:57:40","slug":"challenges-of-weight-conversion-when-converting-a-luxury-suv-from-v8-biturbo-ice-to-bev","status":"publish","type":"fallstudien","link":"https:\/\/www.tgm.solutions\/en\/fallstudien\/herausforderungen-bei-der-gewichtsumstellung-bei-der-umruestung-eines-luxus-suv-von-v8-biturbo-ice-auf-bev\/","title":{"rendered":"Weight conversion challenges when converting a luxury SUV from V8 biturbo ICE to BEV"},"content":{"rendered":"

Identified and analyzed the primary engineering challenges in overcoming weight shift during the development of a battery electric luxury SUV evolving from a V8 biturbo internal combustion engine configuration to a 480 kW dual-motor BEV architecture.<\/p>\n\n\n

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Context of the use case<\/h2>\n\n\n\n

The project focuses on converting a luxury SUV platform with 400 kW ICE into an all-electric version with 480 kW power. The ICE version includes a V8 biturbo engine, all-wheel drive and an aluminum-intensive chassis. The transition to BEV involves major changes in terms of powertrain layout, battery integration, chassis dynamics and overall vehicle mass.<\/p>\n\n\n\n

The most important challenges when changing your weight<\/h2>\n\n\n\n

Battery mass and placement<\/h3>\n\n\n\n
    <\/ol>\n\n\n\n

    High-performance battery packs (\u2265 120 kWh) weigh 600-650 kg. The integration into the vehicle floor affects the center of gravity, the crash structures and the height of the cabin floor.<\/p>\n\n\n\n

    Structural adaptation for battery modules<\/h3>\n\n\n\n

    The vehicle underbody must be redesigned to protect the battery module and integrate it into the load paths. Requires new structural lightweight approaches, e.g. hybrid aluminum-steel chassis or sandwich panels.<\/p>\n\n\n\n

    Weight distribution and handling<\/h3>\n\n\n\n

    The BEV architecture changes the weight distribution between the front and rear wheels (\u2248 50:50). Requires recalibration of the suspension, steering geometry and active chassis systems.<\/p>\n\n\n\n

    Changes to the thermal management system<\/h3>\n\n\n\n

    New thermal systems for batteries, inverters and motors increase complexity and system mass. Modular and thermally efficient solutions (e.g. phase change materials, dual-loop cooling) must be considered.<\/p>\n\n\n\n

    Maintaining luxury and comfort standards<\/h3>\n\n\n\n

    Increased BEV mass must not compromise NVH, ride quality or interior luxury. Innovations in lightweight material strategies (e.g. CFRP interior structures, acoustic lightweight foams) are required.<\/p>\n\n\n\n

    Lightweight construction strategies<\/h2>\n\n\n\n

    Lightweight material:<\/strong> High-strength hybrid components made of aluminum, CFRP and composite materials<\/p>\n\n\n\n

    Lightweight system:<\/strong> Integration of electric drives, steer-by-wire, brake-by-wire<\/p>\n\n\n\n

    Structural lightweight: <\/strong>Battery as a load-bearing element, optimized crash structures<\/p>\n\n\n\n

    Conclusion<\/h2>\n\n\n\n

    The early development phase of a luxury SUV based on a former ICE platform presents significant challenges in terms of mass management and structural integration. A comprehensive, multidisciplinary approach to lightweight design is critical to maintaining luxury vehicle characteristics while meeting performance, safety and range targets.<\/p>","protected":false},"featured_media":14190,"template":"","fallstudie-kategorie":[154],"class_list":["post-14192","fallstudien","type-fallstudien","status-publish","has-post-thumbnail","hentry","fallstudie-kategorie-gewichtsmanagement"],"meta_box":{"branche-fallstudie_from":["288"]},"_links":{"self":[{"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/fallstudien\/14192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/fallstudien"}],"about":[{"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/types\/fallstudien"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/media\/14190"}],"wp:attachment":[{"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/media?parent=14192"}],"wp:term":[{"taxonomy":"fallstudie-kategorie","embeddable":true,"href":"https:\/\/www.tgm.solutions\/en\/wp-json\/wp\/v2\/fallstudie-kategorie?post=14192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}