Danfoss PVED-CLS User Manual page 8

ENGINEERING TOMORROW
7.3.1.1
7.4 Valve capacity ................................................................................................................................................................... 43
7.5 LVDT compensation and spool threshold at boot-up ........................................................................ 45
7.5.1.1
7.5.1.2
7.6 Analogue interface ......................................................................................................................................................... 45
7.6.1.1
7.6.1.2
7.6.1.3
7.7 Steering device and program changes ......................................................................................................... 47
7.8 Vehicle speed setup ...................................................................................................................................................... 47
7.9 Vehicle geometry ............................................................................................................................................................ 48
7.10 Setup a steering device ............................................................................................................................................. 51
EXTERNAL SENSORS .................................................................................................................................... 51
Wheel angle sensor ................................................................................................................................................................ 52
8.1
No Wheel angle sensor ........................................................................................................................................ 52
8.1.1
Speed sensor ............................................................................................................................................................................. 52
8.2
SASAIID sensor ...................................................................................................................................................................... 53
8.3
CALIBRATION ................................................................................................................................................. 54
Wheel angle sensor calibration .......................................................................................................................................... 55
9.1
Automatic adjustment of maximum steer angles and cylinder stroke volume ................................. 56
9.1.1
Analogue Joystick calibration ............................................................................................................................................ 61
9.2
Spool calibration ..................................................................................................................................................................... 62
9.3
Prerequisites ............................................................................................................................................................ 62
9.3.1
Spool calibration overview ................................................................................................................................ 63
9.3.2
Auto-calibration ...................................................................................................................................................................... 65
9.4
Initial setup .............................................................................................................................................................. 66
9.4.1
9.4.1.1
Execute auto-calibration from plus+1 service tool ..................................................................................................... 70
9.5
Pre-requisite ............................................................................................................................................................ 70
9.5.1
Execute WAS auto-calibration from the PLUS+1 SERVICE TOOL ................................................. 70
9.5.2
Execute Analogue Joystick auto-calibration from the PLUS+1 SERVICE TOOL ....................... 74
9.5.3
Execute spool auto-calibration from the PLUS+1 SERVICE TOOL ................................................. 78
9.5.4
9.5.4.1
STEERING WHEEL PROGRAMS .................................................................................................................. 83
Block diagram .......................................................................................................................................................................... 83
10.1
Backlash ..................................................................................................................................................................................... 83
10.2
STW in use and activation threshold ............................................................................................................................... 84
10.3
Vehicle speed dependent Fast-steering ........................................................................................................................... 84
10.4
Compensate steering sensitivity according to wheel angle range ......................................................... 85
10.4.1
Anti-drift (EFU) ...................................................................................................................................................................... 87
10.5
Anti-jerk ..................................................................................................................................................................................... 89
10.6
Calculation of flow set-point using anti-jerk functionality ..................................................................... 90
10.6.1
Soft-stop ..................................................................................................................................................................................... 93
10.7
AUX STEERING ............................................................................................................................................... 95
Block diagram .......................................................................................................................................................................... 96
11.1
Open loop mini-wheel ......................................................................................................................................... 96
11.1.1
8 | © Danfoss | August 2018
Internal monitoring disengage (IMD) ............................................................................................ 42
LVDT compensation ............................................................................................................................ 45
Spool threshold at boot-up ................................................................................................................. 45
AD low-pass filter ................................................................................................................................. 45
Analogue input drift compensation ................................................................................................. 46
Sensor supply test ................................................................................................................................. 46
Auto-calibration parameter plausibility check ............................................................................ 67
Fine-tuning of parameters for spool calibration ......................................................................... 82
AQ00000211