Invention Grant
US07786687B2 Apparatus and method for control of an active front steering (AFS) system
有权
用于控制主动前转向(AFS)系统的装置和方法
- Patent Title: Apparatus and method for control of an active front steering (AFS) system
- Patent Title (中): 用于控制主动前转向(AFS)系统的装置和方法
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Application No.: US12109676Application Date: 2008-04-25
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Publication No.: US07786687B2Publication Date: 2010-08-31
- Inventor: Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
- Applicant: Chandra S. Namuduri , Suresh Gopalakrishnan , Robert R. Bolio , Ross Feller , Balarama V. Murty
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Current Assignee Address: US MI Detroit
- Agency: Miller IP Group, PLC
- Agent John A. Miller
- Main IPC: H02P1/04
- IPC: H02P1/04 ; H02P6/04

Abstract:
A motor control strategy for a motor in a front steering system for a vehicle that reduces vibrations from the motor being transferred to a vehicle hand-wheel. The control strategy also includes operating the electric motor in a commutation freeze mode if a position error signal is less than a first predetermined threshold by sending signals to coils of the motor to prevent to the motor from rotating, operating the electric motor in a commutation normal mode if the position error signal is greater than a second predetermined threshold that is greater than the first predetermined threshold, and operating the electric motor in an angle step mode if the position error signal is between an intermediate threshold and the second threshold where the angle step mode provides a signal to the motor to move the motor forward or backward a predetermined number of motor steps, one step at a time.
Public/Granted literature
- US20090269043A1 APPARATUS AND METHOD FOR CONTROL OF AN ACTIVE FRONT STEERING (AFS) SYSTEM Public/Granted day:2009-10-29
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