Data Sheet
Steering
EHi Steering Valve
Danfoss Electrohydraulic In-line Steering Valve (EHi) is
intended for off-road use. The EHi is designed for easy
integration in new vehicles, as well as upgrading
existing vehicles.
EHi with PVED-CLS actuator module form a fail-safe
steering valve, category 3 according to ISO 13849-1.
EHi fitted with PVED-CLS actuator, as well as a full
steering subsystem specification, has a 3rd party
certification available.
The EHi is a flexible alternative to Danfoss OSPE, for
vehicles where space around the steering unit is
particularly limited.
The EHi may be applied for fail-safe Steer-by-Wire
applications, joystick or mini wheel for slow moving
vehicles. Four-wheel steering, the EHi may be applied
for steering the rear axle, for vehicles where fail-safe
operation is acceptable.
Features
Valve options
•
Integrated priority valve, 45 or 90 l/min
•
Flow range selections 12, 20, 30, 40, 50
or 70 l/min
•
Port thread metric DIN 6149-1
Control options
•
Full feature steering and safety
controller PVED-CLS
Auto guidance ISO 11783 – Variable
‒
displacement / quick steering
Joystick interface – Mini wheel
‒
interface
Safety functions – PLd / SIL2
‒
Hydraulic disengage – CAT 3 fail-safe
‒
steering
•
CAN bus - flow command PVED-CC
•
Analogue ratio-metric PVES
Hydraulic system configurations
•
Load sense reaction and non-reaction
•
Load sense static and dynamic
•
Open center reaction and non-reaction
•
Closed center
Compliance (with PVED-CLS)
•
IEC 61508-1(ed.2) (SIL2)
•
IEC 61508-2(ed.2) (SIL2)
•
IEC 61508-3(ed.2) (SIL2)
•
EN 16590-1:2014 (AgPLd, SRL3)
•
EN 16590-2:2014 (AgPLd, SRL3)
•
EN 16590-3:2014 (AgPLd, SRL3)
•
EN 16590-4:2014 (AgPLd, SRL3)
•
ISO 13849-1:2008 (up to Cat 3, PLd)
•
ISO 13849-2:2012 (up to Cat 3, PLd)
Comprehensive technical literature online
at powersolutions.danfoss.com
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Danfoss | April 2017 AI00000322en-US0201 | 1
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rpu1484516161594
Data Sheet
EHi Steering Valve
Dimensions
Outline dimensions in millimeters
Technical data
Steering flow 12, 20, 30, 40, 50, 70 l/min
Max. system pressure 210 bar (280 bar)
Max. back pressure (T-port) 25 bar
Priority valve flow 45 and 90 l/min
PVE actuators PVED-CLS, PVED-CC, PVES
Weight 11.2 kg (24.7 lbs).
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Data Sheet
EHi Steering Valve
EHi for Load Sensing reaction, integrated priority valve
Applications and Steering devices
Contact your local Danfoss Power Solutions representative.
©
Danfoss | April 2017 AI00000322en-US0201 | 3
EHi standard configurations
•
OEM installation
•
SBW fail-safe
•
Rear axle / 4WS
•
GPS universal
Configurations OEM installation SBW /
4WS
EHi-1 EHi-2 EHi-3*EHi-4 EHi-5 EHi-6 EHi-7
Hydraulic Circuit Load
Feature
EH w. PVES, D CC, CLS • • • • • • • • • •
Cut-off valve • • • • • • • • • •
Relief valve • • • • • • • • • •
Priority valve • • • • • • •
Shock-suction valves • • • • • •
PVFC LS resolver valve • • • • • •
Reaction Switch Valve for
reaction (RSV)
OSP override on RSV • • • •
LS shuttle (SBW or 2WS) •
EF and T internally connected •
Disengage without SASA
(hydraulic disengage)
Electrical disengage, for
example, by SASA
*
Contact Danfoss Power Solutions for information.
**
Variable steer mode is not available when using hydraulic disengage.
**
Sensing
Open
Center
• • • • • • • •
Closed
Center
Load
Sensing
Load
Sensing
Reaction
Load
Sensing
Reaction
• • • •
SBW failsafe /
4 Wheel
Steering
4WS GPS Universal
EHi-8*EHi-9
4 Wheel
Steering
*
Load Sensing
(Static and
Dynamic)
With/Without
Reaction
• •
EHi-10
Open Center
With/Without
Reaction
*
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
4 | © Danfoss | April 2017 AI00000322en-US0201
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