SSANGYONG REXTON 2006.09 Manual page 390

ECPS(ELECTRONIC CONTROL POWER STEERING)
GENERAL
1. OVERVIEW
In traditional constant power assist steering system, the steerability gets lighter as vehicle speed
rises, and this may cause dangerous situation. Where as having heavy steerability in high speed
driving makes it difficult to manipulate the steering wheel when vehicle is in stop. This steering
system solve this problem as the steerability is changed according to the vehicle speed, which is
called Speed Sensitive Power Steering (SSPS).
SSPS, by providing appropriate steerability to driver according to the changes of vehicle speed,
gives steering stability.
In other words, the steering wheel gets lighter by adjusting steerability in stop or low speed and
provides steering stability by adjusting steering wheel to become heavier in high speed.
SSPS system applied in Rexton is ECPS (Electronic Control Power Steering: Hydraulic Pressure
Reaction Force Control) type that allows to change the steerability according to the vehicle
speed. The power steering control unit adjusts the hydraulic pressure to reaction plunger by
controlling the pressure solenoid valve located in gear box to optimize the steerability.
1. Pump
2. Solenoid valve
3. Control unit
4. Jack bracket
ELECTRONIC CONTROL POWER STEERING
15-3
4620-01
4620-01
REXTON 2006.09