Roll Centre Height – Force Based – Suspension KPI

Roll centre height is measured in RACE software using a force based test.  The basis for this test is shown in the diagram below.  A lateral cornering force is applied at the tyre contact patch and the resulting lateral and vertical forces generated by the suspension are measured.  The roll centre is the height of the intersection of the hypotenuse of Fy and Fz and the vehicle centre line.  The roll centre in RACE reports is presented as both the force gradient Fz/Fy and the calculated roll centre height in millmetres using this force gradient and the suspension track width.

This KPI page is only a brief overview. To learn more about this and other KPIs, including KPI values used in industry, real-world examples and best-practice guidance, please refer to our courses below.

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