What is the Difference Between a Torsion Beam and a Multi-Link Suspension in Cars?

[JasmineFitz]

The differences between torsion beam suspension and multi-link suspension are as follows: 1. Torsion beam suspension typically comes with trailing arms (wishbones) on both sides of the vehicle body, and the beam is used as a lateral positioning link. Due to its compact size, this type of suspension is commonly found in the rear axles of small cars, maximizing interior space. 2. Multi-link suspension evolved from double-wishbone suspension and is structurally very similar to it, making it difficult to distinguish and often influenced by original manufacturer claims. The biggest difference from torsion beam suspension is that multi-link arms can operate independently, significantly reducing the impact from road surfaces. Multi-link suspensions with three to five links offer adjustable degrees of freedom in geometric changes, allowing racing team engineers to use computer simulations for dynamic suspension tuning, enabling finer adjustments and improved stability.