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：US11549407B2

公开(公告)日：2023-01-10

申请号：US17715408

申请日：2022-04-07

申请人： AISIN CORPORATION ,  MAZDA MOTOR CORPORATION

发明人： Kenya Fujimoto ,  Yoshinari Tokunaga ,  Shigehiro Tanabe ,  Takano Nakai ,  Yoshiyuki Kamoyama ,  Hiroshi Takahashi ,  Toru Hirota

IPC分类号： F02D13/04 ,  F01L1/352 ,  F01L1/344 ,  F01L1/46

摘要： The valve timing control unit includes a valve timing control mechanism that includes a driving rotary body, a driven rotary body, an electric motor and a deceleration gear each for setting the relative rotational phase of the driving rotary body and the driven rotary body, and a phase sensor unit that detects the actual phase of the driving rotary body and the driven rotary body. The valve timing control unit includes a controller that controls the electric motor to reduce a phase difference between the actual phase and a target phase, and the controller includes a swing controller that swings the target phase in vicinity of the target phase when the target phase is maintained and the actual phase having a fluctuation amount is held in a holding region, in which the fluctuation amount is less than a preset value.