Build Your Suspension Model Faster with ISO 8855 Input
If you already measure suspension points using a recognised vehicle coordinate system, the Suspension Geometry Calculator makes it easier to turn those measurements into a working model.
ISO 8855 is an international standard that defines a vehicle coordinate system and related terminology for road vehicle dynamics. In this format, the origin is the intersection of the wheel centreline, chassis centre and wheelbase centre. ISO 8855 specifies X forward, Y right and Z up; the calculator uses Y and Z when entering suspension data.
Why use ISO 8855?
Instead of translating every pickup point into custom offsets, ISO 8855 gives you a consistent way to enter suspension coordinates. That helps when building a suspension model in the calculator, which can then help you design and analyse the suspension geometry.
You can also use ISO 8855 for related systems, including steering arms, drive shafts, shocks and springs.
How to enter ISO 8855 data
- Open the Suspension Geometry Calculator
- Click Edit
- Click Form Input
- Scroll down and click ISO 8855
- Enter your Y and Z coordinates
From coordinates to analysis
Once your model is created, the calculator can analyse roll centre, bump steer, scrub radius, camber gain and motion ratio, giving each a bad, okay or good score.
Subscribe to make the most of the analysis and reporting features, create any number of models, save private models and access the calculator’s full feature set.
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| Input dimensions in ISO 8855 format |  | |  | |
