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1. (WO2017058977) INDUCTION MOTOR FOR A WORK MACHINE

Pub. No.:    WO/2017/058977    International Application No.:    PCT/US2016/054276
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 30 01:59:59 CEST 2016
IPC: H02P 25/22
B60L 11/10
Applicants: CATERPILLAR INC.
Inventors: STONECIPHER, Kenneth
Title: INDUCTION MOTOR FOR A WORK MACHINE
Abstract:
A work machine (10) may include a drive (26) mechanically associated with a plurality of ground engaging elements (14). A 4-phase/4-sub- phase motor (34) may be operatively associated with the drive (26) and may include a stator (46), a rotor (44), and a 3-to-4 phase inverter (38). The stator (46) may include a plurality of stator coils (48). The rotor (44) may be operatively associated with the drive (26) and may include a plurality of permanent magnets (50). The 3-to-4 phase inverter (38) may be configured to provide alternating 4-phase and 4-sub-phase signals to the plurality of stator coils (48) to produce magnetic flux with the plurality of permanent magnets (50) to rotate the rotor (44).