发明公开
- 专利标题： ESTIMATEUR DU COUPLE FOURNI PAR UNE MACHINE ÉLECTRIQUE DESTINÉE À LA PROPULSION D'UN VÉHICULE AUTOMOBILE ET PROCÉDÉ ASSOCIÉ
- 专利标题（英）： EP3269035A1 - Estimator of the torque provided by an electric machine for driving a motor vehicle, and associated method
- 专利标题（中）： 一种用于推进机动车的电机提供的扭矩估算器及相关方法
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申请号： EP16714970.7申请日： 2016-02-19
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公开(公告)号： EP3269035A1公开(公告)日： 2018-01-17
- 发明人: BEN-AICHA, Fehd
- 申请人： Renault S.A.S.
- 申请人地址： 13-15 quai Le Gallo 92100 Boulogne-Billancourt FR
- 专利权人： Renault S.A.S.
- 当前专利权人： Renault S.A.S.
- 当前专利权人地址： 13-15 quai Le Gallo 92100 Boulogne-Billancourt FR
- 优先权： FR1552013 20150311
- 国际公布： WO2016142599 20160915
- 主分类号： H02P21/20
- IPC分类号： H02P21/20
摘要：
The invention relates to a method for estimating the torque of an electric machine (4) of a hybrid or electric drive motor vehicle, wherein the power currents (l
d , I
q , I
F ) of the electric machine (4) expressed in a two-phase reference frame are determined, the components (
φ
d ,
φ
q ) in the two-phase reference frame of the magnetic flux (φ) induced by the electric machine (4) are estimated, and an estimation (C
est ) of the torque provided by the electric machine (4) is calculated. In order to estimate the components (
φ
d ,
φ
q ) of the magnetic flux (
φ ), at least one sigmoid function (logsig, tansig) is applied to a weighted current (P
id , P
iq ) calculated from the currents (l
d , I
q , I
F ) expressed in the two-phase reference frame.
d , I
q , I
F ) of the electric machine (4) expressed in a two-phase reference frame are determined, the components (
φ
d ,
φ
q ) in the two-phase reference frame of the magnetic flux (φ) induced by the electric machine (4) are estimated, and an estimation (C
est ) of the torque provided by the electric machine (4) is calculated. In order to estimate the components (
φ
d ,
φ
q ) of the magnetic flux (
φ ), at least one sigmoid function (logsig, tansig) is applied to a weighted current (P
id , P
iq ) calculated from the currents (l
d , I
q , I
F ) expressed in the two-phase reference frame.
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