公开(公告)号：US12253044B2

公开(公告)日：2025-03-18

申请号：US18226551

申请日：2023-07-26

Applicant: DENSO CORPORATION

Inventor： Akira Sakamoto ,  Keisuke Kawai ,  Yuichi Handa ,  Syuya Kamizono

IPC: F02D45/00 ,  H02P9/04 ,  H02P101/45

Abstract: A control apparatus for a motor generator that is connected to an internal combustion engine. The control apparatus estimates an estimated torque pulsation that is an estimation value of torque pulsation of the internal combustion engine. The control apparatus controls the motor generator to reduce generated power and suppress decrease in a rotation speed of the internal combustion engine, when a negative torque that obstructs rotation of the internal combustion engine is generated in the estimated torque pulsation of the internal combustion engine.

公开(公告)号：US20240227776A9

公开(公告)日：2024-07-11

申请号：US18400486

申请日：2023-12-29

Applicant: DENSO CORPORATION

Inventor： Syuya KAMIZONO ,  Akira Sakamoto ,  Yuichi Handa ,  Masaki Amakawa ,  Keisuke Kawai

IPC: B60W20/15 ,  F02N11/08 ,  H02P23/04

CPC classification number: B60W20/15 ,  F02N11/0859 ,  H02P23/04 ,  B60W2710/083 ,  F02N2200/042 ,  F02N2250/00

Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.

公开(公告)号：US20240123834A1

公开(公告)日：2024-04-18

申请号：US18541414

申请日：2023-12-15

Applicant: DENSO CORPORATION

Inventor： Haibo LIU ,  Keisuke Kawai ,  Akira Sakamoto ,  Shigeru Kamio ,  Tatsuya Takagi

IPC: B60L7/26

CPC classification number: B60L7/26 ,  B60L2240/12 ,  B60L2240/423

Abstract: A control device includes a switching control unit, an information acquisition unit, and a difference acquisition unit. The switching control unit performs switching control that increases braking torque of the braking device while decreasing braking torque of the rotating electrical machine, when a vehicle is decelerated. The information acquisition unit acquires information on a state of the vehicle. The difference acquisition unit acquires a braking torque difference indicating a difference between braking torque required for keeping a stopped state of the vehicle and braking torque of the braking device, when the vehicle is stopped. After the information acquisition unit detects the stopped state of the vehicle, the switching control unit corrects output torque of the rotating electrical machine based on the braking torque difference.

公开(公告)号：US20240132049A1

公开(公告)日：2024-04-25

申请号：US18400486

申请日：2023-12-29

Applicant: DENSO CORPORATION

Inventor： Syuya KAMIZONO ,  Akira Sakamoto ,  Yuichi Handa ,  Masaki Amakawa ,  Keisuke Kawai

IPC: B60W20/15 ,  F02N11/08 ,  H02P23/04

CPC classification number: B60W20/15 ,  F02N11/0859 ,  H02P23/04 ,  B60W2710/083 ,  F02N2200/042 ,  F02N2250/00

Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.