Invention Grant
- Patent Title: Actuator with feed forward control
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Application No.: US14645385Application Date: 2015-03-11
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Publication No.: US09726099B2Publication Date: 2017-08-08
- Inventor: Chandra S. Namuduri , Suresh Gopalakrishnan , Thomas Wolfgang Nehl , Avoki M. Omekanda
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F02D41/20
- IPC: F02D41/20 ; F02D41/14 ; H03K17/64 ; F02M51/06

Abstract:
An electromagnetic actuation system includes an actuator having an electrical coil, a magnetic core, and an armature. The system further includes a controllable bi-directional drive circuit for selectively driving current through the electrical coil in either of two directions. The control module provides an actuator command to the drive circuit effective to drive current through the electrical coil in a first direction to actuate the armature and in a second direction subsequent to armature actuation to oppose residual flux within the actuator. The control module includes a feed forward control module configured to adapt the actuator command to converge residual flux within the actuator to a preferred flux level.
Public/Granted literature
- US20150267667A1 ACTUATOR WITH FEED FORWARD CONTROL Public/Granted day:2015-09-24
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