Configuration And Adjustment; Parameter Tuning Process; Changing Default Parameters; System Parameters - Danfoss pved-cl Operation Manual

Operation Manual
PVED-CL Controller for Electro-Hydraulic Steering, Version 1.38

Configuration and Adjustment

Configuration and Adjustment

Changing Default Parameters

16 | © Danfoss | May 2016
The PVED-CL contains parameters to tailor the valve and PVED-CL to the vehicle and to provide the
required functionality. The OEM must be in possession of an interface device that is capable of reading
and transmitting messages on the CAN bus. It is recommended to implement the PVED-CL
communication protocol in a service tool or MMI.

Parameter Tuning Process

A typical parameter tuning process is:
Basic info on :
- Valve type & size
CUSTOMER
- Steering devices
- Sensors
Order prototype
- Vehicle data
- Desired functionality
Prototyping, testing
& parameter fine
tuning
Send order &
tuned parameter
set
Danfoss Technical Sales is able to ship steering valve prototypes that are vehicle install-ready and where
the relevant parameters have already been tuned towards their optimum values. The OEM customer
needs to do the fine-tuning.
The PVED-CL is manufactured with a parameter set that provides basic functionality for the steering
devices that are used. In most cases the default values need to be changed to adapt the valve to the
system.
Configuration of the PVED-CL is required to customize the EHPS/EH system to a particular vehicle.
Parameters are used to e.g. map steering devices and sensors, compensate for non-linearity in steering
signals and to control the functionality features in the PVED-CL.
There exists three different kinds of parameter types:

System Parameters

System parameters are parameters which describe:
•
PVED-CL interface & environment configuration (sensors, valves)
•
Start-up default behavior (sensor interface)
•
Addresses on J1939 CAN bus (customization of CAN IDs)
•
System identification information (valve type, software version, sales order number, PVED-CL serial
number)
It is vital in order to achieve correct PVED-CL functionality, that the system parameters are set correctly.
Some system parameters are used by the software to calculate the correct hydraulic gain, determining
left and right direction etc. An overview of all system parameters can be found in appendix
Parameters on page 107.

Steering Device Parameters

Steering device parameters are parameters which define functionality related to a particular steering
device. These parameters will be common to a particular device at all times during operation and for all
steering device programs. The parameters define functionality as:
•
Detection criteria for steering device activation
SAUER-DANFOSS
Tune parameters,
Manufacturing &
Ship prototype
Running
production with
customized
parameters
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System