公开(公告)号：US12012906B2

公开(公告)日：2024-06-18

申请号：US18002728

申请日：2021-05-11

申请人： AISIN CORPORATION ,  Mazda Motor Corporation

发明人： Yoshinari Tokunaga ,  Yuki Kasuya ,  Takano Nakai ,  Kenichiro Suzuki ,  Yoshiyuki Kamoyama ,  Toru Hirota

IPC分类号： F02D13/02 ,  F02D13/08 ,  F02D41/00 ,  F02D41/04

CPC分类号： F02D13/0215 ,  F02D13/0203 ,  F02D13/0223 ,  F02D13/0234 ,  F02D13/0242 ,  F02D13/0249 ,  F02D13/08 ,  F02D41/009 ,  F02D41/042 ,  F02D2041/001

摘要： A stop control device for an internal combustion engine is structured that stops the engine in a state suitable for starting and that does not cause a crank angle to change after the engine is stopped. A four-cycle internal combustion engine includes an electric valve opening and closing timing control device that sets an opening and closing timing of either or both of an intake valve and an exhaust valve. Stop control of stopping the internal combustion engine is performed when a stop signal for stopping the internal combustion engine is acquired, and post-stop phase control of displacing the opening and closing timing of the valve opening and closing timing control device in either an advancing direction or a retarding direction is performed after the internal combustion engine is stopped by the stop control.

公开(公告)号：US11428172B2

公开(公告)日：2022-08-30

申请号：US17203887

申请日：2021-03-17

申请人： AISIN CORPORATION

发明人： Yuki Kasuya ,  Shugo Ito ,  Takano Nakai ,  Kenichiro Suzuki ,  Yoshiyuki Kamoyama ,  Toru Hirota

IPC分类号： F01L1/34 ,  F02D13/02 ,  F01L9/22 ,  F01L1/344

摘要： A valve opening and closing timing control device includes: a driving-side rotating body that rotates synchronously with a crankshaft of an internal combustion engine around a rotating shaft core; a driven-side rotating body that rotates integrally with a valve opening and closing camshaft of the internal combustion engine around the same shaft core as the rotating shaft core; a gear mechanism that sets a relative rotation phase between the driving-side rotating body and the driven-side rotating body by displacement of a meshing position; a motor that enables displacement of the meshing position of the gear mechanism by rotating a rotating shaft; and a control unit that controls the drive of the motor. The control unit intermittently performs control to energize the motor for one phase for a predetermined time after the internal combustion engine is stopped.