First independent front suspension on new FH
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By David Wilcox
ONE OF THE key features of the new Volvo FH tractor unit to be unveiled next week in Sweden is independent front suspension, breaking new ground for heavy trucks.
The decision to include independent front suspension (IFS) is part of Volvo’s aim to build a truck with what it claims will have “the world’s best road manners”.
Martin Palming, product manager at Volvo Trucks, says: “The Volvo FH is more like a car than a truck when it comes to precise response and confidence-inspiring directional stability.” Volvo explains that using independent suspension (with airbags) rather than the customary rigid beam axle and parabolic leaf springs at the front improves both ride and steering control, as movements at one wheel are not transmitted to the other.
CM understands that IFS will not be standard on the FH, and Volvo is not discussing its cost. But UK operators need not apply just yet. IFS will not be offered on the early right-hand drive versions of the FH, which goes into production next spring, and it is unclear when the necessary engineering work for right-hand-drive models will be done. IFS was used on the Dennis Rapier fire appliance in the mid1990s and is also found on some coaches and buses, but Volvo is the first to specify it on a mainstream European tractor unit.
However, other manufacturers are likely to follow suit. ZF is showing IFS for trucks at next month’s IAA Hannover show and says it offers advantages not only in ride and handling, but is also lighter and allows greater steering angles than a beam axle.
• See CM 13 September for the full details on the new Volvo FH.