The hydraulically steered axle offers reliability and efficiency in normal, dynamic and emergency operating conditions, both forwards and in reverse.
The irregularities and limitations of all types of self-steering axles, which depend on grip, i.e. the load on the axles and road conditions (unmetalled, muddy, wet, etc.), are eliminated.
In fact the axle is always operated and controlled by the driver and therefore gives a graduated and precise response to the working and road conditions.
The grip means that under all working and road conditions:
- it is easier and safer to drive;
- the vehicle is more stable, especially in dynamic situation (curves, emergency)
- precise steering is assured on all road surfaces;
- it is possible to manoeuvre the vehicle in all conditions;
- skidding is eliminated resulting in less tyre and road wear and tear;
- smaller turning radii;
- rapid and accurate response to driver's manoeuvres;
- easy and accurate reversing, putting it into reverse is the only operation required.
The principle of the system is characterised by the following factors:
- power steered axle works in forward and reverse gears;
- steering axle has predetermined speed limit (max 50 km/h); up to this speed the axle automatically takes up a fixed position. The axle is only locked in the fixed position when the front axle is centred;
- simplicity and safety of commands;
- servo-assisted steering;
- high performance, reliable hydraulic components;
- all control functions performed by electronic control unit.
Rear Axle Steering Systems