Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben

摘要

The invention concerns a system for actively reducing rotational non-uniformity of a shaft, in particular the drive shaft (10) of an internal-combustion engine (1) or a shaft which is coupled, or can be coupled, to the drive shaft. The system includes at least one electrical machine (4), in particular an induction machine or travelling-wave machine, which is coupled, or can be coupled, to the shaft; at least one inverter (17) which generates the voltage and/or current of variable frequency, amplitude and/or phase necessary to produce the magnetic field of the electrical machine (4); and at least one control device (31) which controls the inverter (17) and hence the electrical machine (4) in such a way that the machine counteracts both positive and negative rotational non-uniformity of the shaft. The invention also concerns a method of actively reducing rotational non-uniformity using the system.