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1. 发明专利

JP2014148303A Method for operating electric motor 审中-公开
标题翻译：电动马达操作方法
公开(公告)号：JP2014148303A
公开(公告)日：2014-08-21
申请号：JP2014014622
申请日：2014-01-29
申请人： Zf Lenksysteme Gmbh , ツェットエフ、レンクジステメ、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツングZf Lenksysteme Gmbh
发明人： THOMAS KUEHNHOEFER , ALEXANDER KRAUSTRUNK
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00 , H02P6/12
CPC分类号： H02P7/00 , B62D5/0463 , B62D5/0496 , H02P29/64 , H02P29/662
摘要： PROBLEM TO BE SOLVED: To provide a method for protecting magnet elements of an electric motor from temperature-dependent demagnetization during operation.SOLUTION: The present invention is a method for operating an electric motor (9) which is used as an electric servo drive (8) in a power steering system (1). The electric motor (9) is utilized via a plurality of magnet elements and phase windings and controlled by an electronic control unit (11). A temperature(θ) of at least one magnet element (9a) in the plurality of magnet elements of the electric motor (9) is continuously determined during the operation of the electric motor (9) by a temperature model (13). Based on the temperature (θ) of the at least one magnet element (9a) of the electric motor (9) determined by the temperature model (13), an electrical current (I) flowing in at least one of the phase windings of the electric motor (9) is limited, taking into account a predeterminable limit temperature (θ) of the at least one magnet element (9a) of the electric motor (9).
摘要翻译：要解决的问题：提供一种用于在运行期间保护电动机的磁体元件免受温度依赖的退磁的影响。解决方案：本发明是一种用于操作电动机（9）的方法，该电动机用作电动伺服驱动器在动力转向系统（1）中。电动机（9）经由多个磁体元件和相绕组使用，并由电子控制单元（11）控制。通过温度模型（13）在电动机（9）的操作期间连续地确定电动机（9）的多个磁体元件中的至少一个磁体元件（9a）的温度（＆amp; 基于由温度模型（13）确定的电动机（9）的至少一个磁体元件（9a）的温度（θ），流过至少一个相绕组的电流（I）考虑到电动机（9）的至少一个磁体元件（9a）的可预定极限温度（＆amp;），电动机（9）受到限制。

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