{"id":5756,"date":"2025-05-13T08:02:02","date_gmt":"2025-05-13T08:02:02","guid":{"rendered":"https:\/\/ernst.com.vn\/test-1\/"},"modified":"2025-05-13T09:07:38","modified_gmt":"2025-05-13T09:07:38","slug":"electric-motor-testing","status":"publish","type":"post","link":"https:\/\/ernst.com.vn\/en\/electric-motor-testing\/","title":{"rendered":"Electric motor testing"},"content":{"rendered":"
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In e-mobility, particularly in electric vehicles, high-speed electric motors are used in conjunction with corresponding power electronics and a reduction gearbox.<\/p>\n

In the development of these future drive systems, E motor test beds play a crucial role in determining efficiency tests, map recordings, dynamic tracking, endurance and thermal testing.<\/p>\n

ERNST has been supplying the test bed mechanics for this purpose for many years. This consists of a welded machine frame also called \u201cbase structure.\u201d<\/p>\n<\/div>\n<\/div>\n

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The vibration decoupling to the building is usually done by means of air springs; the base structure itself has no natural frequency within the rotational speed range.<\/p>\n

The shaft train is assembled according to the specific application, with several options available, such as an integrated spindle bearing position or an interlocking torsion bar.<\/p>\n

Due to our own design and in-house manufacturing and installation, ERNST is able to deliver complete test bed mechanics as a system supplier.<\/p>\n

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Drawings<\/h2>\n

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Properties<\/strong><\/p>\n

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  • Base structures with 1st natural frequency above speed range<\/li>\n
  • Air spring damping system<\/li>\n
  • Alignment via pressure elements and grinding plates<\/li>\n
  • Additional support surfaces<\/li>\n
  • Mounting and alignment elements<\/li>\n
  • Customer-specific adaption<\/li>\n
  • Turnkey solution by ERNST<\/li>\n<\/ul>\n

     <\/p>\n

    Options<\/strong><\/p>\n

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    • Climate application<\/li>\n
    • Shaft design<\/li>\n
    • Customer-specific adaption<\/li>\n
    • B-side support<\/li>\n
    • Highspeed gearbox<\/li>\n<\/ul>\n<\/div>\n

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      Product examples<\/h2>\n
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      \nE-motor test bed in test cell<\/strong><\/div>\n
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      Technical data:<\/p>\n

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      • Speed range: up to 20000 rpm<\/li>\n
      • Torque range: up to 1000 Nm<\/li>\n
      • Mass: approx. 5.5 t (incl. E-motor)<\/li>\n
      • Dimensions: approx. 1.8 m x 1.0 m\u00a0x 1.5 m<\/li>\n
      • Adaption support surfaces for flange and base assemblies (DUT)<\/li>\n
      • Shaft connection consisting of K&A Dyno, HBM torque meter, coupling and intermediate bearing<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
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        \nE-motor test bed, incl. intermediate bearing<\/strong><\/div>\n
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        Technical data:<\/p>\n

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        • Highspeed gearbox with 2 outputs<\/li>\n
        • Speed range: up to 11000 rpm \/ 25000 rpm<\/li>\n
        • Torque range: up to 1500 Nm \/ 500 Nm<\/li>\n
        • Mass: approx. 7.5 t (incl. E-motor)<\/li>\n
        • Dimensions: approx. 2.3 m x 1.0 m\u00a0 x 1.6 m<\/li>\n
        • Adaption support surfaces for flange and base assemblies (DUT)<\/li>\n
        • Shaft connection consisting of Oswald dyno, coupling, intermediate bearing, HBM torque meter, couplings and intermediate bearing<\/li>\n
        • Climate application<\/li>\n
        • B-side support<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
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          <\/div>\n
          \"\"
          \nE-motor test bed, incl. climate application<\/strong><\/div>\n
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          Technical data:<\/p>\n

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          • Speed range: up to 16000 rpm<\/li>\n
          • Torque range: up to 900 Nm<\/li>\n
          • Mass: approx. 5.0 t (incl. E-motor)<\/li>\n
          • Dimensions: approx. 1.8 m x 1.0 m x 1.5 m<\/li>\n
          • Adaption support surfaces for flange and base assemblies (DUT)<\/li>\n
          • Shaft connection consisting of Oswald dyno and HBM torque meter<\/li>\n
          • Climate application<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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            <\/div>\n
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            <\/div>\n
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            \nE-motor test bed, incl. highspeed gearbox<\/strong><\/div>\n
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            Technical data:<\/p>\n

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            • Speed range: up to 20000 rpm<\/li>\n
            • Torque range: up to 1000 Nm<\/li>\n
            • Highspeed gearbox (detachable): up to 30,000 1\/min \/ 500 Nm<\/li>\n
            • Mass: approx. 6.5 t (incl. E-motor)<\/li>\n
            • Dimensions: approx. 2.0 m x 1.0 m x 1.5 m<\/li>\n
            • Adaption support surfaces for flange and base assemblies (DUT)<\/li>\n
            • Shaft connection consisting of K&A dyno, HBM torque meter, torsion bar and highspeed gearbox<\/li>\n
            • Climate application<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
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              <\/div>\n
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              \nE-motor test bed, incl. protection<\/strong>\u00a0box<\/div>\n
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              Technical data:<\/p>\n

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              • Speed range: up to 12000 rpm<\/li>\n
              • Torque range: up to 200 Nm<\/li>\n
              • Mass: approx. 2.2 t (incl. E-motor)<\/li>\n
              • Dimensions: approx. 1.8 m x 1.0 m x 1.4 m<\/li>\n
              • Adaption support surfaces for flange and base assemblies (DUT)<\/li>\n
              • Shaft connection consisting of Oswald dyno, clamping element, HBM torque meter and high-speed shaft<\/li>\n
              • Protection box<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

                In e-mobility, particularly in electric vehicles, high-speed electric motors are used in conjunction with corresponding power electronics and a reduction gearbox. In the development of these future drive systems, E […]<\/p>\n","protected":false},"author":1,"featured_media":5663,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[148],"class_list":["post-5756","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crash-systems","tag-crash-system-en"],"_links":{"self":[{"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/posts\/5756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/comments?post=5756"}],"version-history":[{"count":3,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/posts\/5756\/revisions"}],"predecessor-version":[{"id":5871,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/posts\/5756\/revisions\/5871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/media\/5663"}],"wp:attachment":[{"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/media?parent=5756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/categories?post=5756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ernst.com.vn\/en\/wp-json\/wp\/v2\/tags?post=5756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}