公开(公告)号：US20240088811A1

公开(公告)日：2024-03-14

申请号：US18518240

申请日：2023-11-22

申请人： DENSO CORPORATION

发明人： Toru OIWA

IPC分类号： H02P25/22 ,  B62D5/04 ,  H02P25/18 ,  H02P29/028

CPC分类号： H02P25/22 ,  B62D5/0412 ,  H02P25/18 ,  H02P29/028 ,  H02P2207/07

摘要： A rotary electric machine control apparatus is provided which controls energization of a rotary electric machine having a plurality of winding sets. The apparatus includes an energization control circuit that is provided for each of the winding sets and has a switching element related to switching of energization to the winding set, a driver circuit that outputs a drive signal to the switching element through a signal line connected to the switching element, and a protection element that is connected to the signal line and in parallel with the switching element. When combinations of the winding sets and electronic components including the energization control circuit provided for each of the winding sets are regarded as systems, in at least one of the systems, performance of the protection element is differentiated from that in the other system to make noise resistance different from noise resistance in the other system.

公开(公告)号：US20190356259A1

公开(公告)日：2019-11-21

申请号：US16412886

申请日：2019-05-15

申请人： DENSO CORPORATION

发明人： Toru OIWA

IPC分类号： H02P25/22 ,  B62D5/04 ,  H02P29/028 ,  H02P25/18

摘要： A rotary electric machine control apparatus is provided which controls energization of a rotary electric machine having a plurality of winding sets. The apparatus includes an energization control circuit that is provided for each of the winding sets and has a switching element related to switching of energization to the winding set, a driver circuit that outputs a drive signal to the switching element through a signal line connected to the switching element, and a protection element that is connected to the signal line and in parallel with the switching element. When combinations of the winding sets and electronic components including the energization control circuit provided for each of the winding sets are regarded as systems, in at least one of the systems, performance of the protection element is differentiated from that in the other system to make noise resistance different from noise resistance in the other system.

公开(公告)号：US20210313917A1

公开(公告)日：2021-10-07

申请号：US17349235

申请日：2021-06-16

申请人： DENSO CORPORATION

发明人： Toru OIWA

IPC分类号： H02P25/22 ,  B62D5/04 ,  H02P25/18 ,  H02P29/028

摘要： A rotary electric machine control apparatus is provided which controls energization of a rotary electric machine having a plurality of winding sets. The apparatus includes an energization control circuit that is provided for each of the winding sets and has a switching element related to switching of energization to the winding set, a driver circuit that outputs a drive signal to the switching element through a signal line connected to the switching element, and a protection element that is connected to the signal line and in parallel with the switching element. When combinations of the winding sets and electronic components including the energization control circuit provided for each of the winding sets are regarded as systems, in at least one of the systems, performance of the protection element is differentiated from that in the other system to make noise resistance different from noise resistance in the other system.

公开(公告)号：US20190389507A1

公开(公告)日：2019-12-26

申请号：US16559948

申请日：2019-09-04

申请人： DENSO CORPORATION

发明人： Yuta MURAKAMI ,  Toru OIWA ,  Koji ISOGAI

IPC分类号： B62D5/04 ,  B62D6/00 ,  H02P29/032 ,  H02P27/04 ,  H02P6/08 ,  G01L3/04

摘要： A motor control device controls driving of a motor, which outputs torque to a rack shaft as a load by rotation of a shaft fixed to a rotor. The motor control device has a rotation stress check unit for determining a rotation stress indicating a rotation stress, which is applied inversely from the load to a protection target member such as a shaft, bearing and oil seal related to the rotation of the shaft or torque transmission to the load. The rotation stress check unit determines the rotation stress is excessive based on that an absolute value of a rotation evaluation value exceeds a stress threshold value. The rotation evaluation value is a rotation angular velocity, a rotation angular acceleration or a related value corresponding to the rotation angular velocity or the rotation angular acceleration. The stress threshold value is set to be larger than an absolute value of an upper limit value realized in normal drive control.