modules of forwarder2020 · felix zu hohenlohe hsm hohenloher spezial-maschinenbau project funded...

Modules of Forwarder2020Smart Forwarder for sustainable and efficient

forest operation and management

Felix zu HohenloheHSM Hohenloher Spezial-Maschinenbau

Project funded by the European Union’s Horizon 2020 research and innovation program under the Grant Agreement n°727883

Modules with potential of improvement

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Modules can be integrated into standardforwarders as needed by the customer:

• M1 Hydro-mechanical powersplit transmssionDRTS HVT-R2 shortdrop

• M2 Hydro-pneumatic suspension• M3 Hybrid crane drive HCD• M4 Triple-bogie• M5 Monitoring system

Module 1

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M1:Dana Rexroth Transmission

Systems HVT-R2 (hydromechanical

variable transmission)

➢ Challenges:

➢ Design and prototype production of a short-drop version

➢ Integration into HSM 208F

➢ Software for optimal control of transmission and crane hydraulics

Module 2

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M2: Suspended bogie

➢ Adapting to terrain like a standard bogie

➢ One hydraulic differential cylinder with position sensor and one hydraulic accumulator per bogie-side

➢ Roll stabilization

➢ Load compensation

➢ Option for blocking the cylinder in top position for the use of tracks

Ref: Bauer, Hydro-pneumatischeFederungssysteme

Module 3

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M3: Hybrid hydraulic crane drive

➢ Works with every standard forwarder crane

➢ Uses one load-sensing pump and one standard crane valve block

➢ Hydraulic parallel movement of main and outer boom by one hydraulic transformer (= 2 hydraulic motors with one common shaft). Parallel movement can be switched off.

➢ Recuperation of potential energy for the main boom cylinder of the arm system by one hydraulic transformer and one hydraulic accumulator

➢ Avoiding unnecessary high load pressure levels from clamping the load in the grapple by a pressure switch and a small hydraulic accumulator.

Module 4

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M4: Triple bogie➢ Bogie-housing with three driven wheels instead of two

➢ Same differential housing and axle beam as the standard 12ton 208F forwarder

➢ Designed for rapid change (one day in the shop) between tandem and triple bogie

Module 5

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M5: Machine Monitoring System

➢ BETTER DECISION MAKING IN FOREST OPERATIONAL PLANNING

Precise documentation of vehicle movements and loads carried on skid trails give the option to exactly monitor, record, plan and control the forwarding process

➢ Large set of sensors

➢ Data Logging

➢ Data compression

➢ Send compressed data to cloud

➢ Can be adapted to standard forwarders

Thank you

Project funded by the European Union’s Horizon 2020 research and innovation programme under the Grant Agreement n°727883

www.forwarder2020-project.eu

Im Greut 1074635 Neu-Kupfer,

Germany

felix.hohenlohe@hsm-forest.com

www.hsm-forest.com

Felix zu Hohenlohe

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