HEC offers electric and hybrid drive systems for various mobile applications, starting from 20 kW up to 1 MW. The drive systems are composed by components available on the market or, if required, by new developed components. The system approach, with clear defined system functionality and interfaces, offers customers substantial time and cost benefits during integration in the application and increases operational reliability. For complex drive systems, rapid control prototyping is applied on implementing drive control strategies to speed up development processes and shorten the time to market.