24-11-2012, 01:16 PM
FOUR-WHEEL STEERING SYSTEM
FOUR-WHEEL STEERING.pdf (Size: 562.63 KB / Downloads: 236)
Types
Mechanical
Hydraulic
Electro-Hydraulic
Actual 4WS
Rack and pinion front steering, hydraulically controlled
Rear-steering shaft
Vehicle speed sensors
Steering-phase control unit
Centering lock spring
Solenoid valve
Fail-safe measures
Hydraulic failure
Electrical failure
Positioning of the wheels
Conclusion
Advantageous to 2WS
Complex and expensive
Cost may drop as the system becomes common