The aim of this project was to design, manufacture, commission and validate four complete and identical driving systems for a ground test bench intended to be used for aircraft starters/generators testing.

The four driving systems were integrated in one single product and functioned simultaneously or not, independently and/or interdependently. Each system drove one single generator or starter/generator and was able to simulate electrical start of the aircraft engine, as well as electrical generation. Any two of the four drive systems had the possibility to be synchronised in speed and position. The four drives were locally or remote controlled and were integrated with ancillaries available at the place of use. A complete measurement channel deserved the entire test bench.

In order to achieve a unitary test bench with low maintenance costs, we implemented innovative solutions based on the latest technologies in the fields of mechanical and electrical drives, mechanical transmissions, measurements. The proposed systems were complete and included four DC motors (with maxim power of 160 kW each) with associated electronics. This completely fulfilled the imposed condition of identical systems.

Innovative aspects of the proposal were: mechanical transmissions with high efficiency by using recess gear system and polygonal shafts; bidirectional and birotational speed multiplier; non-contacting measuring of torques and speeds; use of specialized software for complete system configuration and management. The systems was environmental friendly, had low noise emission and used a reduced amount of oil. The main characteristics and capabilities required by the CfP were satisfied.