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Inverter Safety Unit from TTTech in Second Generation Volvo C30 Electric

TTTech Automotive has developed a monitoring unit for safety-related electric drive systems. The Inverter Safety Unit (ISU) had been chosen by Volvo Car Group for the innovative first and second generation Volvo C30 Electric, produced between 2011 and 2013.

Full control of the enormous 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. Our ISU uses a special sensor system and innovative algorithms to calculate the actual torque and to detect errors independently that could cause safety goals to be breached. If the deviation between the target and the actual torque becomes too big, the safe state of the electric power train is entered through internal and external shut-off paths. The ISU can be integrated into the power train as a self-contained monitoring unit or into the inverter itself. Volvo Car Group had chosen our solution because our safety know-how was the perfect fit for their goal to make the Volvo C30 a role model for e-mobility.

If you would like to find out more about this story, please refer to the press release or visit the respective product page.

We are looking forward to continuing our successful cooperation with Volvo in future projects.

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