An electric motor was installed as a drive in a vehicle with an internal combustion engine. The manual six-speed transmission was retained. The problem was that the electric motor could not reduce its speed as quickly as an internal combustion engine when changing gear. The speed balance between the engine and the transmission had to be achieved by grinding the clutch. This friction work would cause above-average wear of the clutch in continuous operation or cause a clutch defect due to overheating.


To reduce the load on the clutch, a system is therefore to be developed which detects the desired gear during a gearshift and adjusts the engine speed in accordance with the gear engaged.


  • Concept  
  • Sensors and application 
  • Validation


The functionality of the developing concept of switch identification was successfully demonstrated on the test bench.

Companies such as NAF, MAGNA EDAG Engineering have today – thanks to our support in the field of powertrain and chassis – reduced the workload of their development teams and thus increased the effectiveness and productivity in development.