Patent ID: 6877578
Filing Date: 2005-04-12
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
1. A multi-axle vehicle comprising: an engine; a first drive axle driven by said engine; a drive assembly including a variable frequency generator, an input shaft driven by said engine, and an electric motor electrically communicating with said variable frequency generator to receive output power from said variable frequency generator, said variable frequency generator selectively generating an output power of variable frequency when said input shaft is rotating at a constant speed, said input shaft rotating at a fixed ratio relative to said first drive axle and wherein said variable frequency generator includes a stator with a winding and a rotor rotatable with said input shaft and relative to said stator, said rotor having a winding and wherein said drive assembly further includes an inverter coupled to a power supply and electrically connected to said rotor, said inverter communicating electrical power of variable frequency to said rotor; and a second drive axle driven by said electric motor.