Actual and future electric vehicles contain complex powertrain hard- and software which has to be tested carefully. Efficient test processes and procedures are needed to ensure highest product safety, reliability and performance of the complete vehicle. The paper presents a new approach for the testing process of electrical powertrains with only real components available on test beds distributed over different test sites. The result of this work extends the established test method "from-road-to-lab" with interconnected test beds. The approach makes component testing inside a fully functional virtual car in real-time possible. The paper will describe in detail the prototypical implementation of this testing process for a battery electrical vehicle with wheel hub motors and torque vectoring.
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