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Products for the construction of electrical and electronic systems in machines.

 

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Practical products for assistance during service and support operations.

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Ready-to-install systems and products for controlling mobile machinery.

» eBSS

» Crane control

» System solutions

 

» Testing & Simulation

Control cabinets with which your products/machines are simulated or tested.

WMT SystemeWMT Support

Testing & simulation

Switch cabinets with which your products/machines can be simulated or tested.

 

We manufacture customised switch cabinets for you.

 

Reproduce, test, improve

By setting up a test cabinet, hardware such as joysticks, displays, sensors, motors or complete machines can be simulated. Thus “components” can be used without having them on site. Using plug connections, power supply, inputs and outputs, and CAN communication between different hardware can be connected and checked quickly.

With this environment, it is possible to test products and code before they are delivered to the customer. This ensures consistent and high quality.

 

 

 

 

WMT Systeme

eBSS – Electro-hydraulic demand flow control

Energy-efficient, responsive, forward-looking

 

ebss grafik bigWe help with the electrification of your working machine!

 

Development goals

The development of eBSS was carried out in cooperation with the Chair of Mobile Machinery.


The general idea behind the project was to optimise the working hydraulics of mobile machines, especially to increase of efficiency of a forestry crane hydraulic system. By minimising principle-related losses of a load-sensing control, the goal was to save energy by more than 10% by using an electro-hydraulic demand flow control (eBSS).

The following objectives were defined:

  • Reduction in fuel consumption
  • Minimisation of cooling power requirement
  • Reduced oil temperature » lifetime of organic oilsImproved cold start behaviour
  • Active influence on vibration susceptibility
  • Increased ease of use and productivity

Boundary conditions: Use of common electro-hydraulic components

 

Functionality

The electro-hydraulic demand flow control (eBSS) is an innovative system to control pumps and valves in an open circuit. The system is suitableThe electro-hydraulic demand flow control (eBSS) is an innovative system to control pumps and valves in an open circuit. The system is suitablefor stationary and mobile applications.
The pump is controlled electronically and adjusted to the volumetric flow rate requirements of the valves. This results in very direct control of theconsumers and the energy consumption of the load sensing systems can be reduced noticeably.By controlling the pump without feedback, vibrations can be avoided and the reaction time is noticeably shorter compared to LS systems. For the driver, this increases operating comfort and the machine can be controlled more precisely and better.

 

Hydraulic system of the test machine

LS system before retrofit

  • 2 x A10VO71…DFR
  • 2 x A10VO71…DFR
  • 2 x 130 l/min
  • 2 x M4-15 control block for crane
  • 1 x M4-12 control block for additional functions
  • No oil cooler

 

eBSS after retrofit

  • 2 x A10VO85…EP2DF
  • 2 x A10VO85…EP2DF
  • 2 x 150 l/min
  • 2 x LVS12 control block with digital pilot head for crane
  • 1 x M4-12 control block for additional functions
  • No oil cooler

 


DBU - Deutschen Bundestiftung UmwelteBSS – Ein Förderprojekt der Deutschen Bundesstiftung Umwelt (DBU)

 

Förderthema

Elektrohydraulische Bedarfsstromsteuerung mit Hybridfunktion zur Steigerung der Energieeffizienz von Forstmaschinen

 

Förderzeitraum
01.01.2016 - 30.09.2018 (2 Jahre und 9 Monate)

 

 

Service & support

Reliable service on site or via remote maintenance.

 

Electronics

Products for the construction of electrical and electronic systems in machines

  • Operating elements

  • Cable harnesses

  • Switch cabinets and distributors

  • Signal adapters

  • Controllers


kabelbaum

Cable harness production according to your requirements

We assemble customised cable harnesses, including labelling and connectors, individually and at short notice – to suit your controllers.

Your benefits:

  • Fast and simple assembly is guaranteed
  • We offer delivery of samples or small and large quantities
  • Short delivery periods possible
  • Individual fabrication

System solutions

Thanks to our long experience in the field of forestry machinery, we are your competent partner for the development of robust and reliable electrical and hydraulic systems for mobile machines and vehicles.

 

Our engineering services include consulting, planning and design, component selection, circuit diagram preparation and PLC programming.
During the construction phase we procure all individual parts and install them in your machine. Needless to say, we only use components designed for mobile use under extreme conditions. Our services include switch cabinet construction, cabling and assembly of hydraulic systems.

 

Even after completion of the machine, you are still in good hands with us. We take care of commissioning, maintenance and service for you. You receive detailed documentation, operating instructions and a spare parts list.

Products Ι WMTpart Ι Service & support

umi – universal measuring interface

universal measurement interface 

umi small1

 

umi offers the possibility to transfer sensor values to the CAN bus. Current, voltage and frequency sensors can be connected.

 

» More infos

 

Products Ι WMTpart Ι Machine

Crane control

independent and flexible

 

All common hydraulic control blocks can be controlled by our control system, regardless of the manufacturer.

 

» More infos

 

Products Ι WMTpart Ι Testing & simulation

Testing & simulations

reproduce, test, improve

schaltschrank

 

Control cabinets with which your products/machines are simulated or tested.

 

» More infos

 

Products Ι WMTpart Ι Service & support

tor – terminal for on-site- and remote-operations

interfaces, cloud connection, data center  

TC3G RGB web transparent

 

Flexible telemetry and data acquisition solution - developed for use in mobile applications

 

» More infos

 

Products Ι WMTpart Ι Machine

Systems solutions

robust and reliable electrical and hydraulic systems

 

Our engineering services include consulting, planning and design, component selection, circuit diagram generation and PLC programming.

 

» More infos

 

Products Ι WMTtools

map – machine analysis and parameterization

simple, clear, customer-specific

map concept

 

The PC software map supports the OEM in all life cycles of the machine. During production, the machine can be configured and the parameter sets can be managed.

 

» More infos

 

Products Ι WMTpart Ι Service & support

Electronics

Products for the construction of electrical and electronic systems

kabelbaum

 

Operating elements, cable harnesses, control cabinets and distributions, signal adapters, controls.

 

» More infos

 

Products Ι WMTcode

Next generation programming frameworks

Know-how, safety, modularity

code

 

Extensive programming frameworks form the basis for customer applications.

 

» More infos

 

Weiss Mobiltechnik GmbH – Your partner for individual and field-tested solutions for mobile machines.

 

Weiss Mobiltechnik GmbH

Harlachweg 15
72229 Rohrdorf
Baden-Württemberg, Germany


Fon +49 7452 9308-5
Fax +49 7452 9308-2

Email info@wmt.gmbh

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