Danfoss PVED-CLS Data sheet
Data Sheet
Steering Valve Controller
PVED-CLS on OSPE
Electrohydraulic Steering
The PVED-CLS Steering Valve Controller is an
application specific valve controller for the Danfoss
steering valve family. The PVED-CLS offers integrated
flexible software-based electrohydraulic steering
functionality which can be tailored to any off-road
vehicle type by software parameterization. The PVEDCLS also works as a certified Safety Controller.
System Integration
Users integrate and develop the electro-hydraulic
steering system by adjusting typically 20 parameters
with a CAN bus based service and diagnostic tool.
Danfoss offers a graphical-based tool ( PLUS+1
Service Tool).
®
Safety
Safety functions for electrohydraulic steering are
integrated and designed to
•
SIL2 (IEC 61508)
•
PL d (ISO 13849) and
•
AgPL d (EN 16590)
•
AgPL e for roading mode can be achieved by
additional circuitry (hydrostatic steering only)
Features
•
Mount on OSPE, EHPS, EH valves
•
User-programmable steering
functionality
•
Use for front-, rear- or articulated
steered vehicles
•
Category 3 safety architecture (dual
microcontroller)
•
12 pin DEUTSCH DT connector
•
CAN based Wheel Angle Sensor input
•
9 to 32 Vdc power supply operation
•
5V Power supply for external sensors
(250mA)
•
2 CAN 2.0B ports, baud rate (250Kbit/s)
•
1 high-side switch output (9 to 32Vdc,
2A@12Vdc) (e.g. for OSPE cut-off valve
control)
•
1 LED for operational mode indication
•
Designed for SASA steering wheel
sensor
•
Prepared for steering devices with
tactile feedback (AUX steering)
•
Functional safety conforms to IEC
61508, ISO 13849 and EN 16590 (ISO
25119:2010 modified)
•
Fail-silent electrohydraulic steering
principle
•
Suitable for safety architecture
categories 2 and 3
•
Safe on-road mode (SIL 3/AgPL e,
electronics powered, and EH steering
depowered)
•
Main safety functions
Safe state: Redundant shutting-off
‒
the electrohydraulic steering flows
(system fall-back hydrostatic OSP
steering)
Trip to safe state when vehicle speed
‒
> safe speed threshold
Trip to safe state by unintended
‒
steering motion or other malfunction
Safe on-road mode
‒
©
Danfoss | Jun 2016 L1309911 | AI00000222en-US0102 | 1
Data Sheet
OSPE with PVED-CLS
Product highlights
Two Microcontroller-Units (MCU) execute the configurable
electrohydraulic steering functionalities such as:
•
Integrated safety functions
•
Auto-steering (ISO 11783)
•
Fast steering (Variable steering ratio)
•
Speed dependent characteristics
•
AUX interface
Joystick steering
‒
Electric Mini-wheel
‒
•
Flow ramping for Jerk elimination for articulated vehicles
•
Steering wheel anti-drift control
•
MMI CAN bus interface
•
KWP2000 CAN service protocol
•
J1939-73 Diagnostics
Comprehensive technical literature online at
powersolutions.danfoss.com
2 | © Danfoss | Jun 2016 L1309911 | AI00000222en-US0102
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