With the increasing electrification of the drive train, new components are playing a more and more important role in system safety. The control of the torque generated by the electric motor is – also in case of failure – of crucial importance, due to the typical lack of a possibility to interrupt the power flow mechanically.
With the Inverter Safety Unit (ISU), TTTech Automotive has developed a modular inverter-monitoring unit that monitors the generated torque by analyzing electrical signals at the electric motor. In case of failure, the ISU puts the system into a safe state.