- Patent Title: Current profile strategy for minimizing torque ripple and current
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Application No.: US14266110Application Date: 2014-04-30
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Publication No.: US09647595B2Publication Date: 2017-05-09
- Inventor: Jackson Wai , Carlos Nino Baron , Jesse Gerdes , Ernesto Inoa , Ahmed Khalil
- Applicant: Caterpillar Inc
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Miller, Matthias & Hull
- Main IPC: H02K29/06
- IPC: H02K29/06 ; H02P6/10 ; H02P25/098 ; B62D5/04 ; H02P6/14 ; H02K29/08

Abstract:
A method of controlling an electric motor may include determining a desired torque at the electric motor. A current at a first phase of the electric motor may be calculated at a controller. The calculated current may be a current that results in supplying the desired torque at the electric motor. The controller may compare the calculated current to a predetermined threshold current, and when the calculated current is greater than the predetermined threshold current, the controller may reduce the calculated current to the predetermined threshold current and adjust a current in a second phase adjacent to the first phase of the electric motor to continue to supply the desired torque at the electric motor.
Public/Granted literature
- US20150318806A1 Current Profile Strategy for Minimizing Torque Ripple and Current Public/Granted day:2015-11-05
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