Danfoss PVED-CLS - 11.11 Closed Loop Joystick - Vehicle Speed Dependent Closed Loop Control

114 | © Danfoss | August 2018 AQ00000211
ENGINEERING TOMORROW
Name
Address
Data type
Unit
Description of parameter
User
Range
Danfoss default value
Safety critical parameters ‘S’
Min.
Max.
AUX joystick - Max
wheel angle @ Point A
P3720 U8 Deg
AUX Joystick - Maximum allowed wheel angle at the vehicle speed of 0
km/h
OEM 0 89 15 S
AUX joystick - Max
wheel angle @ Point B
P3721 U8 Deg
AUX Joystick - Maximum allowed wheel angle at the vehicle speed "AUX
Joystick - Vehicle speed limiting wheel angle @ Point B”
OEM 0 89 10 S
AUX joystick - Max
wheel angle @ Point C
P3722 U8 Deg
AUX Joystick - Maximum allowed wheel angle at the vehicle speed "AUX
Joystick - Vehicle speed limiting wheel angle @ Point C”
OEM 0 89 5 S
AUX joystick - Vehicle
speed limiting wheel
angle @ Point B
P3723 U8 km/h
AUX Joystick - Vehicle speed at which the flow should be limited to
"AUX Joystick - Max wheel angle @ Point B”
OEM 0 100 15 S
AUX joystick - Vehicle
speed limiting wheel
angle @ Point C
P3724 U8 km/h
AUX Joystick - Vehicle speed at which the flow should be limited to
"AUX Joystick - Max wheel angle @ Point C”
OEM 0 100 25 S
Table 49
11.11 CLOSED LOOP JOYSTICK – VEHICLE SPEED DEPENDENT CLOSED LOOP CONTROL
As each application is different, Danfoss has implemented a speed dependent closed loop control gain, configurable for
Closed Loop Joystick. When using a Closed Loop Joystick function, the PVED-CLS’s Closed Loop Joystick-control
algorithm can vary the closed loop gain, dependent on the vehicle speed.
The range is from 0 to 100 km/h for P3728 to P3729 and from 0 to 200 [%] for P3725 to P3727.
These parameters represent the three points on the figure 60 (Point A, B and C). The Auto-guidance-algorithm will make
linear interpolation in between each of the three points. It is allowed to move the three points in any direction, limited by
the following rules:
• Point A is always specified at Vehicle speed = 0 km/h
• The Vehicle speed has to increase for each point, hence “Vehicle speed” for Point A < “Vehicle speed” for Point
B and “Vehicle speed” for Point B < “Vehicle speed” for Point C.
• Point C “Closed loop gain” is valid for Point C “Vehicle speed” and vehicle speeds above Point C “Vehicle
speed”