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Adaptive control system that saves energy and reduces wear

Country of Origin: Germany
Reference Number: TODE20190404002
Publication Date: 4 April 2019


A German university developed an adaptive two-position controller with reduced control-value range for application in engines, pumps, heaters and others. It saves energy and reduces wear. Industrial licensees are sought.


In engine controlling, dynamic systems often use a two-position controller and a simple sensor that only indicates whether a threshold is exceeded or not. Thus the controlled engine is either switched off or operated at full power. This leads to high wear and high energy consumption.

A German university now responds to this problem: The university developed an adaptive controller that renders possible the optimal use of value-continuous control variables in a closed-loop control. The algorithm of this adaptive controller avoids oscillations of the manipulated variable between the minimum and the maximum value. The manipulated variable is located in a narrow band around a suitable mean value. There are no limitations with regard to dynamics.

The adaptive controller can be used in many areas, e.g. for pumps, engines or heaters. A cost-effective retrofitting is possible. The variations in the manipulated variables, which are reduced by the adaptive controller, also reduce the wear and the energy consumption of the equipment. In a laboratory experiment, the energy consumption was reduced up to 70% with the adaptive controller.

Industrial licensees are sought, who are interested in using the invention in their processes.

Advantages and Innovations

The innovation lies in the novel algorithm, that leads to significant improvements compared to conventional technologies.

Advantages are that the use of the controller results in:

• Reduced range of control values
• Retrofittable
• Energy saving
• Reduced wear

Stage Of Development

Under development/lab tested

Stage Of Development Comment

Proof of functionality

Requested partner

The university offers interested companies the technology for licensing in order to use the solution in their processes and equipment. This license agreement could include further development according to partner requirements.
Any industry is of interest that applies engines in their processes.

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