公开(公告)号：US10066538B2

公开(公告)日：2018-09-04

申请号：US15100339

申请日：2014-12-01

申请人： Litens Automotive Partnership

发明人： Yongguang Zhu ,  Zbyslaw Staniewicz ,  Noel Abreu ,  Bashar Yazigi ,  Roman Tracz

IPC分类号： F01P7/16 ,  H02K49/06 ,  G01P3/488 ,  H02K11/225 ,  F01P3/20 ,  F01P5/12 ,  F01P11/16 ,  F16D13/08 ,  F16D27/02 ,  F16D48/06

CPC分类号： F01P7/16 ,  F01P3/20 ,  F01P5/12 ,  F01P7/164 ,  F01P11/16 ,  F01P2025/08 ,  F01P2025/32 ,  F01P2031/36 ,  F16D13/08 ,  F16D27/025 ,  F16D48/064 ,  F16D2500/10418 ,  F16D2500/1045 ,  F16D2500/3064 ,  F16D2500/5041 ,  G01P3/488 ,  H02K11/225 ,  H02K49/06

摘要： In an aspect, an electromechanical apparatus is provided, comprising an electromagnet, a magnetically permeable rotor, a drive, a current source, a current sensor and processing logic. The electromagnet includes a magnetically permeable housing and a wire coil disposed therein. The rotor spins and is disposed in the path of a magnetic circuit generated by the electromagnet. The drive rotates the rotor relative to the electromagnet housing. The rotor and electromagnet housing vary the reluctance therebetween as the rotor rotates. The current source applies a current to the electromagnet coil, wherein, during rotation of the rotor, fluctuations in the current result in the electromagnet coil due to the aforementioned varying reluctance are superimposed on the applied current. The current sensor senses fluctuations in current in the electromagnet coil. The processing logic reads the sensed current and determines the frequency of the fluctuations, which are correlated to rotor speed.

公开(公告)号：US20160298527A1

公开(公告)日：2016-10-13

申请号：US15100339

申请日：2014-12-01

申请人： Litens Automotive Partnership

发明人： Yongguang Zhu ,  Zbyslaw Staniewicz ,  Noel Abreu ,  Bashar Yazigi ,  Roman Tracz

IPC分类号： F01P7/16 ,  F16D13/08 ,  F01P11/16 ,  F01P3/20 ,  F01P5/12 ,  F16D27/02 ,  F16D48/06

CPC分类号： F01P7/16 ,  F01P3/20 ,  F01P5/12 ,  F01P7/164 ,  F01P11/16 ,  F01P2025/08 ,  F01P2025/32 ,  F01P2031/36 ,  F16D13/08 ,  F16D27/025 ,  F16D48/064 ,  F16D2500/10418 ,  F16D2500/1045 ,  F16D2500/3064 ,  F16D2500/5041 ,  G01P3/488 ,  H02K11/225 ,  H02K49/06

摘要： In an aspect, an electromechanical apparatus is provided, comprising an electromagnet, a magnetically permeable rotor, a drive, a current source, a current sensor and processing logic. The electromagnet includes a magnetically permeable housing and a wire coil disposed therein. The rotor spins and is disposed in the path of a magnetic circuit generated by the electromagnet. The drive rotates the rotor relative to the electromagnet housing. The rotor and electromagnet housing vary the reluctance therebetween as the rotor rotates. The current source applies a current to the electromagnet coil, wherein, during rotation of the rotor, fluctuations in the current result in the electromagnet coil due to the aforementioned varying reluctance are superimposed on the applied current. The current sensor senses fluctuations in current in the electromagnet coil. The processing logic reads the sensed current and determines the frequency of the fluctuations, which are correlated to rotor speed.

摘要翻译： 一方面，提供了一种机电装置，其包括电磁体，磁导转子，驱动器，电流源，电流传感器和处理逻辑。 电磁铁包括一个导磁壳体和一个布置在其中的线圈线圈。 转子旋转并设置在由电磁体产生的磁路的路径中。 驱动器相对于电磁体壳体转动转子。 当转子旋转时，转子和电磁铁壳体会改变它们之间的磁阻。 电流源向电磁线圈施加电流，其中，在转子旋转期间，由于上述不同的磁阻导致的电磁线圈的电流波动叠加在施加的电流上。 电流传感器感测电磁线圈中的电流波动。 处理逻辑读取检测到的电流并确定与转子速度相关的波动的频率。