公开(公告)号：US20160043614A1

公开(公告)日：2016-02-11

申请号：US14823601

申请日：2015-08-11

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Andrea STEFANI ,  Alessandro FOSSI ,  Roberto BETRO' ,  Marco RAIMONDI ,  Canio CATERINI

IPC: H02K11/00

CPC classification number: B60L15/025 ,  B60L3/0038 ,  B60L3/0061 ,  B60L3/12 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2240/421 ,  B60L2240/427 ,  B60L2240/429 ,  G01D5/2073 ,  G01D5/2448 ,  H02K11/0031 ,  H02K11/225 ,  H02P6/183 ,  H02P21/32 ,  H02P2203/11

Abstract: A method for the diagnosis of the offset of the resolver of an electric motor, comprising acquiring a predetermined offset of a resolver associated with the electric motor; in a first transient, supplying an excitation current to the phases of the electric motor. As a consequence of the excitation current, a current established on the axis d of minimum reluctance and a current established on an axis q in phase quadrature with respect to the axis of minimum reluctance are determined. The correctness of the offset of the resolver is diagnosed if the current established on the axis d in the first transient is higher than the current established on the axis d in the second or third transient, and if the current established on the axis q in the first transient is lower than the current established on the axis q in the second or third transient.

Abstract translation: 一种用于诊断电动机的旋转变压器的偏移的方法，包括获取与所述电动机相关联的旋转变压器的预定偏移; 在第一瞬态中，向电动机的相位提供励磁电流。 作为励磁电流的结果，确定在最小磁阻的轴线d上建立的电流和在相对于最小磁阻轴的相位正交的轴线q上建立的电流。 如果在第一瞬态中在轴d上建立的电流高于在第二或第三瞬态中在轴线d上建立的电流，并且如果在第i个瞬态中的轴线q上建立的电流，则确定解算器的偏移的正确性 第一瞬态低于在第二或第三瞬态中在轴q上建立的电流。