公开(公告)号：US20190072043A1

公开(公告)日：2019-03-07

申请号：US16122415

申请日：2018-09-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuto Katori ,  Hideyuki Hayashi ,  Daisuke Shiomi ,  Yuichi Masukake ,  Ryuji Yokote

IPC: F02D13/06 ,  F02D13/02 ,  F02D17/02

CPC classification number: F02D13/06 ,  F01L9/02 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2800/05 ,  F02D13/0215 ,  F02D17/02 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0087 ,  F02D2041/001 ,  F02D2041/0012 ,  F02D2250/21

Abstract: A preparation control for suppressing fluctuation of an output torque of the engine at the time of executing switching operation from the whole cylinder operation to the partial cylinder operation is executed when having made a switching request from the whole cylinder operation to the partial cylinder operation, the valve operation phase is fixed to a predetermined phase before executing the switching operation, and the cylinder deactivation mechanism is controlled so as to execute the switching operation at a target switching time which is prefixed by corresponding to the predetermined phase. The target switching time is previously set to a timing at which abnormal noises are not generated, by corresponding to the valve operation phase fixed to the predetermined phase.

公开(公告)号：US10683814B2

公开(公告)日：2020-06-16

申请号：US16122415

申请日：2018-09-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuto Katori ,  Hideyuki Hayashi ,  Daisuke Shiomi ,  Yuichi Masukake ,  Ryuji Yokote

IPC: F02D13/06 ,  F02D13/02 ,  F02D41/00 ,  F01L9/02 ,  F02D37/02 ,  F01L13/00 ,  F02D17/02

Abstract: A preparation control for suppressing fluctuation of an output torque of the engine at the time of executing switching operation from the whole cylinder operation to the partial cylinder operation is executed when having made a switching request from the whole cylinder operation to the partial cylinder operation, the valve operation phase is fixed to a predetermined phase before executing the switching operation, and the cylinder deactivation mechanism is controlled so as to execute the switching operation at a target switching time which is prefixed by corresponding to the predetermined phase. The target switching time is previously set to a timing at which abnormal noises are not generated, by corresponding to the valve operation phase fixed to the predetermined phase.

公开(公告)号：US20190072046A1

公开(公告)日：2019-03-07

申请号：US16121907

申请日：2018-09-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuto Katori ,  Hideyuki Hayashi ,  Daisuke Shiomi ,  Yuichi Masukake ,  Ryuji Yokote

IPC: F02D41/00 ,  F01L13/00 ,  F02D13/06 ,  F02D17/02

Abstract: A preparation control for suppressing fluctuation of an output torque of the engine at the time of executing switching operation from the whole cylinder operation to the partial cylinder operation is executed when having made a switching request from the whole cylinder operation to the partial cylinder operation. The target switching time executing the switching operation is calculated in accordance with the valve operation phase after the preparation time is completed. The cylinder deactivation mechanism is controlled such that the switching operation is executed at the target switching time. The target switching time is set in accordance with the valve operation phase at the timing in which the abnormal noises are not generated.

公开(公告)号：US10711716B2

公开(公告)日：2020-07-14

申请号：US16121907

申请日：2018-09-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuto Katori ,  Hideyuki Hayashi ,  Daisuke Shiomi ,  Yuichi Masukake ,  Ryuji Yokote

IPC: F02D41/00 ,  F02D13/06 ,  F01L13/00 ,  F02D37/02 ,  F01L9/02 ,  F02D17/02 ,  F02D41/14

Abstract: A preparation control for suppressing fluctuation of an output torque of the engine at the time of executing switching operation from the whole cylinder operation to the partial cylinder operation is executed when having made a switching request from the whole cylinder operation to the partial cylinder operation. The target switching time executing the switching operation is calculated in accordance with the valve operation phase after the preparation time is completed. The cylinder deactivation mechanism is controlled such that the switching operation is executed at the target switching time. The target switching time is set in accordance with the valve operation phase at the timing in which the abnormal noises are not generated.

公开(公告)号：US10514015B2

公开(公告)日：2019-12-24

申请号：US16024914

申请日：2018-07-02

Applicant: Honda Motor Co.,Ltd.

Inventor： Hideyuki Hayashi ,  Yuto Katori ,  Hiroki Miyazono ,  Daisuke Shiomi ,  Kentaro Onuma

IPC: F02P5/04 ,  F02D41/00 ,  F02P5/15 ,  F02D17/02 ,  F02P5/152

Abstract: A control device of an internal combustion engine is provided. In the case where a switch request for switching from all-cylinder operation to partial-cylinder operation is made, before a switch from the all-cylinder operation to the partial-cylinder operation is executed, an intake air amount increase control increasing an intake air flow rate of an engine by increasing an opening degree of a throttle valve is performed, an ignition timing retardation control retarding an ignition timing is performed, and based on a retardation limit value of the ignition timing at a time point when the switch request is made, a start timing of the intake air amount increase control is changed. As a retardable amount being a difference between an initial ignition timing and the retardation limit value decreases, the start timing of the intake air amount increase control is delayed further.