Vehicle Speed Sensor Fault; Steered Wheel Angle Sensor Fails - Danfoss pved-cl Operation Manual

Operation Manual
PVED-CL Controller for Electro-Hydraulic Steering, Version 1.38
Reduced State
Symbol
LPSTDReducedModeAllowed
The parameter controls both analogue and CAN based steering devices.
'False' infers that the PVED-CL will enter fault state if a fault occurs.
Symbol
VSReducedModeAllowed
'False' infers that the PVED-CL will enter fault state if a fault occurs.
Symbol
SWAReducedModeAllowed
'False' infers that the PVED-CL will enter fault state if a fault occurs.
100 | © Danfoss | May 2016
Index
64014
The low priority steering device faults that can trigger reduced state can be found in
Interface on page 102.

Vehicle Speed Sensor Fault

The vehicle speed signal may be used by more steering devices. Any fault on the vehicle speed sensor or
signal will only affect the functionality that uses the speed signal. A steering device utilizing a speed
dependent functionality will continue to work while by-passing the vehicle speed dependent function.
VSReducedModeAllowed This parameter indicates to the PVED-CL error handler, that any fault related
to the CAN vehicle speed sensor shall bring the PVED-CL into reduced state and change steering
functionality as follows:
•
Speed dependent steering sensitivity is by-passed for all steering devices utilizing this functionality.
The PVED-CL will assume maximum speed in the absence of a valid vehicle speed signal. See
Sensitivity with Relation to Vehicle speed
•
Speed dependent ramp is by-passed for steering devices utilizing this functionality. The PVED-CL will
assume maximum speed in the absence of a valid vehicle speed signal. See
Times Related to Vehicle Speed
•
Program transition will ignore vehicle speed condition rule. See
Index
64012
The vehicle speed sensor faults that can trigger reduced state can be found in Available J1939 Diagnostic
Trouble Codes, page 135.

Steered Wheel Angle Sensor Fails

The steered wheel angle sensor signal may be used by more steering devices. Any fault on the steered
wheel angle sensor or signal will only affect the functionality that uses the steered wheel angle signal. A
steering device utilizing this signal will continue to work while by-passing the functionality using the
steered wheel angle sensor signal.
SWAReducedModeAllowed parameter indicates to the PVED-CL error handler, that any fault related to
the steered wheel angle sensor shall bring the PVED-CL into reduced state and change steering
functionality as follows:
•
Soft-stop functionality is by-passed
•
Actuator dependent steering sensitivity is by-passed.
•
Closed-loop control with any steering device or external set-point controller is not possible.
Index
64011
The steered wheel angle sensor faults that can trigger reduced state can be found in
Interface on page 102.
Default Value range
0 0 (FALSE), 255 (TRUE)
on page 80.
on page 46.
Default Value range
0 0 (FALSE), 255 (TRUE)
Default Value range
0 0 (FALSE), 255 (TRUE)
J1939 Diagnostic
Select Ramps with Ramp
System State on page 19.
J1939 Diagnostic
11025583 | AQ00000216en-US0302
Select a