According to media reports, in order to improve fuel efficiency, payload and maneuverability, European DAF introduced electro-hydraulic steering (EHS) systems in its 6 x 2 tractor and rigid vehicle with steering propulsion shafts. The new system applies to DAF's brand New generation truck line of products including XF, XG, XG + and XD.
The newly developed electro-hydraulic steering system continuously calculates the optimal steering Angle for the steering propulsion shaft based on speed and wheelbase to ensure very precise steering.
Steering shafts offer many advantages, such as precise operation and higher payloads, especially for heavy agricultural and construction material transport, as well as waste collection and liquid transport.
Reduce fuel consumption
DAF's new electro-hydraulic steering system replaces the mechanical version. The replacement of two steering arms and auxiliary landing arms by an electronically controlled steering pump unit resulted in a weight loss of up to 30 kg. The new EHS system also improves fuel efficiency by 0.3% due to reduced friction.
In addition, the new system components take up less chassis space, allowing the tractor's tank to grow by up to 40 percent. The XD, XF, XG and XG models carry 900 liters of fuel, helping to further reduce operating costs in regions where oil prices are lower.
Accurate steering can be achieved
The newly developed electro-hydraulic steering system continuously calculates the optimal steering Angle for the steering propulsion shaft based on speed and wheelbase to ensure very precise steering. The turning circle of the tractor and rigid chassis models was further reduced by 12%, enabling full optimization of maneuverability.
At speeds in excess of 45 km/h, the new electro-hydraulic steering shaft locks itself in front of the vehicle for maximum vehicle stability. With the help of redesigned suspension, guide rails and lifters, the new electro-hydraulic steering propulsion shaft fully improves driving comfort.