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US 7,608,950 B2Granted
Traction motor shaft connected to vehicle ground via drive gear
AssigneeSiemens Aktiengesellschaft
InventorMichael Brauer
Life of this patent
Estimating the term…
Abstract
In order to prevent bearing currents, particularly in converter-operated traction motors (1), the housing (11) is grounded via a grounding capacitor (Cground).
Claims8
A traction drive system in a vehicle with an electric or diesel-electric drive, said vehicle representing a system ground potential, the drive system comprising:
- a housing capacitively coupled to ground potential;
- a traction motor received in the housing, said traction motor comprising a rotor shaft connected to ground potential via a drive gear and capacitively coupled to the housing, and a stator capacitively coupled to the housing and to ground potential;
- and
- at least one grounding capacitor connected between the housing and ground potential.
1 more element
Dependencies are inferred from the claim text.