Select A Fixed Steering Sensitivity; Select A Sensitivity With Relation To Vehicle Speed - Danfoss pved-cl Operation Manual

Operation Manual
PVED-CL Controller for Electro-Hydraulic Steering, Version 1.38
Steering by Steering Wheel – Closed Loop

Select a Fixed Steering Sensitivity

Symbol
Sse
Sts0
A steering ratio of 400 equals to 4.00 steering wheel turns to move the steering actuator from YL to YR (left to right end-lock position)

Select a Sensitivity with Relation to Vehicle Speed

54 | © Danfoss | May 2016
Max Sts = 1200
420
400
380
360
340
Min Sts = 20
0 100 200
Sse selects between a fixed steering sensitivity, variable to steering actuator position or vehicle speed.
Set Sse to 1 to select the fixed sensitivity.
Sts0 set the steering ratio. This value should provide sufficient directional stability at all vehicle speeds.
The default value is set at a steering ratio most used.
Index Default
1y09 1
1y10 400
Variable steering sensitivity related to vehicle speed is normally used to optimize steering controllability
at higher driving speeds. The values & correlation is normal closely related to the present vehicle
dynamics of the individual vehicle model.
The correlation is defined by seven parameters. All Sts-parameters may be set equal to each other or
monotonically rising for higher vehicle speeds. The steering sensitivity between two table coordinates is
found by linear interpolation. The relation is equal for negative speeds.
max Sts = 1200
420
example
Sts1=400
400
380
360
340
min Sts = 20
0
100 200 300 400
Ve = Vehicle speed: 1 unit = 0.1 km/h
Variable steering sensitivity related to actuator position, is normally applied to have a higher sensitivity
around neutral (driving straight) and lower sensitivity at different turning angles.
Sse selects between a fixed steering sensitivity, variable to steering actuator position or vehicle speed.
Vesm = 500
Vehicle speed dependant
(linear) – program 1
Vehicle speed dependant
(non-linear) – program 2
Fixed sensitivity – program 0
Vehicle speed dependant
(non-linear) – program 3
300 400 500 600 700
Ve = Vehicle speed: 1 unit = 0.1 km/h
Value range
Must be set at 1
20 to1200
Vesm=500
Sts saturates
(Ve)
500 600 700 800 900 1000
P005 204E
800 900 1000
Vehicle speed
11025583 | AQ00000216en-US0302