Invention Grant
US08410735B2 Torque ripple suppression control device for permanent magnet motor and electric power steering system
有权
用于永磁电动机和电动助力转向系统的扭矩波纹抑制控制装置
- Patent Title: Torque ripple suppression control device for permanent magnet motor and electric power steering system
- Patent Title (中): 用于永磁电动机和电动助力转向系统的扭矩波纹抑制控制装置
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Application No.: US13009007Application Date: 2011-01-19
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Publication No.: US08410735B2Publication Date: 2013-04-02
- Inventor: Kazuaki Tobari , Yoshitaka Iwaji , Junnosuke Nakatsugawa , Rikio Yoshikawa , Masamichi Yagai
- Applicant: Kazuaki Tobari , Yoshitaka Iwaji , Junnosuke Nakatsugawa , Rikio Yoshikawa , Masamichi Yagai
- Applicant Address: JP Shizuoka
- Assignee: Kokusan Denki Co., Ltd.
- Current Assignee: Kokusan Denki Co., Ltd.
- Current Assignee Address: JP Shizuoka
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2010-009044 20100119
- Main IPC: H02P21/00
- IPC: H02P21/00

Abstract:
A torque ripple suppression control device for a permanent magnet motor includes a current command conversion unit that outputs a current command value, a position detector that detects a rotational position of the permanent magnet motor, a current detection unit that detects a current at the permanent magnet motor, an induced voltage coefficient setting unit that outputs an information signal related to an induced voltage coefficient for an induced voltage at the permanent magnet motor, a torque ripple suppression operation unit that outputs a current correction command value for the permanent magnet motor, a current control operation unit that outputs a voltage command value based upon addition results obtained by adding together the current command value and the current correction command value and the current detection value, and a power converter that outputs a voltage with which the permanent magnet motor is to be driven.
Public/Granted literature
- US20110175556A1 TORQUE RIPPLE SUPPRESSION CONTROL DEVICE FOR PERMANENT MAGNET MOTOR AND ELECTRIC POWER STEERING SYSTEM Public/Granted day:2011-07-21
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