发明公开
EP2109211A1 System and method for determining position or speed of a commutaded DC motor with error correction
有权
转让
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基本信息:
- 专利标题: System and method for determining position or speed of a commutaded DC motor with error correction
- 专利标题(中):系统和方法的位置或换向直流电动机测定纠错速度
- 申请号:EP09156014.4 申请日:2009-03-24
- 公开(公告)号:EP2109211A1 公开(公告)日:2009-10-14
- 发明人: Schneider, Philip K. , Canales, Salvador A.
- 申请人: Delphi Technologies, Inc.
- 申请人地址: P.O. Box 5052 Troy, Michigan 48007 US
- 专利权人: Delphi Technologies, Inc.
- 当前专利权人: APTIV TECHNOLOGIES LIMITED, BB
- 当前专利权人地址: APTIV TECHNOLOGIES LIMITED, BB
- 代理机构: Denton, Michael John
- 优先权: US43266P 20080408; US152302 20080514
- 主分类号: H02P6/10
- IPC分类号: H02P6/10 ; H02P7/28 ; G01P3/48 ; H04L27/06
摘要:
A motor control system (10) and method (100) are provided for detecting current ripple in a commutatcd DC motor (14) and further determining position and speed of the motor (14) based on the detected ripple current. Ripples in the motor current (I a ) are detected and a ripple frequency is calculated based on the time between successive ripples. A ripple count between successive frequencies is determined and the ripple count is compared to a threshold value, and an estimated ripple frequency is determined from a motor model (28) when the ripple count exceeds the threshold value. A corrected ripple count is calculated from a ratio of the calculated ripple frequency and the estimated ripple frequency, and motor position and motor speed are determined based on the corrected ripple count.
摘要(中):
提供了用于在基于检测到的纹波电流的马达(14)的commutatcd直流电动机(14),并进一步确定采矿位置和速度检测电流脉动的电动机控制系统(10)和方法(100)。 在电动机电流波动(I a)的检测和脉动频率是基于连续的波纹之间的时间来计算。 连续频率之间的波动计数是确定所开采和纹波计数与阈值,并且在估计的脉动频率被确定性从电动机模型(28)当波纹计数超过阈值开采。 校正的波纹计数从所计算的纹波频率的比率和所估计的纹波频率计算,和电动机位置和电动机速度是确定性的开采基于校正后的波纹计数。
公开/授权文献:
IPC结构图谱:
H | 电学 |
--H02 | 发电、变电或配电 |
----H02P | 电动机、发电机或机电变换器的控制或调节;控制变压器、电抗器或扼流圈 |
------H02P6/00 | 控制同步电动机或具有电子换向器的其他具有机电电动机的装置; |
--------H02P6/08 | .用于控制单个电动机速度或转矩的装置 |
----------H02P6/10 | ..减少转矩脉动的;控制转矩脉动的 |