Steering by High Priority Steering Device - Closed Loop .............................................................................................. 72

Functionality Tree.......................................................................................................................................................................... 72

Tracking........................................................................................................................................................................................72

Select the Control Principle........................................................................................................................................................73

Acquire the Signals.................................................................................................................................................................. 73

Create the Set Point...................................................................................................................................................................... 73

Closing the Loop............................................................................................................................................................................ 74

Eliminate Noise due to Frequent Pressure Build-up......................................................................................................... 74

Magnetic Valves OFF Control ................................................................................................................................................... 74

Resolving a Steering Control Conflict............................................................................................................................... 75

High Priority Steering Device Enable/Disable Control..................................................................................................... 75

System Requirements............................................................................................................................................................. 75

Device Diagnostic Operation............................................................................................................................................... 76

Enable or Disable Joystick Steering Device.....................................................................................................................76

Boot-up State of Steering Device........................................................................................................................................76

Getting the Actual Enable/disable Status of the Device............................................................................................ 76

Steering by Low Priority Steering Device - Open Loop...................................................................................................77

Functionality Tree.......................................................................................................................................................................... 77

Select the Control Principle........................................................................................................................................................77

Acquire the Signals.................................................................................................................................................................. 78

Set-point Transfer Function....................................................................................................................................................... 78

Steering Sensitivity........................................................................................................................................................................79

Select a Fixed Sensitivity............................................................................................................................................................. 79

Select a Sensitivity with Relation to the Actuator Position.............................................................................................80

Select a Sensitivity with Relation to Vehicle speed............................................................................................................80

Ramps (Anti-jerk)............................................................................................................................................................................81

Ramps with Fixed Ramp Times................................................................................................................................................. 82

Example: ......................................................................................................................................................................................82

Example: ......................................................................................................................................................................................83

Select Ramps with Ramp Time Related to Vehicle Speed...............................................................................................83

Example: ......................................................................................................................................................................................85

Anti-jerk Ramp Parameter Tuning Guide.............................................................................................................................. 86

Soft (Cushion) End-stop...............................................................................................................................................................86

Spool Dead-band Hold Control Function............................................................................................................................. 87

Dead-band Jump Control......................................................................................................................................................87

Dead-band Hold and Proportional Control.................................................................................................................... 87

Responding to Flow Requests after Tolsout................................................................................................................... 87

Magnetic Valves OFF Control.................................................................................................................................................... 88

Resolving a Steering Control Conflict............................................................................................................................... 88

Steering by High Priority Steering Device - Closed Loop .............................................................................................. 89

Functionality Tree.......................................................................................................................................................................... 89

Tracking........................................................................................................................................................................................89

Select the Control Principle........................................................................................................................................................90

Acquire the signals...................................................................................................................................................................90

Create the Set Point...................................................................................................................................................................... 90

Closing the Loop............................................................................................................................................................................ 91

Eliminate Noise due to Frequent Pressure Build-up......................................................................................................... 91

Magnetic Valves OFF Control.................................................................................................................................................... 92

Resolving a Steering Control Conflict............................................................................................................................... 92

Low Priority Steering Device Enable/Disable Control...................................................................................................... 92

System Requirements............................................................................................................................................................. 92

Device Diagnostic Operation............................................................................................................................................... 92

Enable or Disable Joystick Steering Device.....................................................................................................................93

Boot-up State of Steering Device........................................................................................................................................93

Getting the Actual Enable/disable Status of the Device............................................................................................ 93

11025583 | AQ00000216en-US0302

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