US 12,012,906 B2
Stop control device for internal combustion engine
Yoshinari Tokunaga, Kariya (JP); Yuki Kasuya, Kariya (JP); Takano Nakai, Hiroshima-ken (JP); Kenichiro Suzuki, Hiroshima-ken (JP); Yoshiyuki Kamoyama, Hiroshima-ken (JP); and Toru Hirota, Hiroshima-ken (JP)
Assigned to AISIN CORPORATION, Aichi (JP); and MAZDA MOTOR CORPORATION, Hiroshima (JP)
Appl. No. 18/002,728
Filed by AISIN CORPORATION, Aichi (JP); and Mazda Motor Corporation, Hiroshima (JP)
PCT Filed May 11, 2021, PCT No. PCT/JP2021/017814
§ 371(c)(1), (2) Date Dec. 21, 2022,
PCT Pub. No. WO2022/004135, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2020-115609 (JP), filed on Jul. 3, 2020.
Prior Publication US 2023/0243313 A1, Aug. 3, 2023
Int. Cl. F02D 13/02 (2006.01); F02D 13/08 (2006.01); F02D 41/00 (2006.01); F02D 41/04 (2006.01)
CPC F02D 13/0215 (2013.01) [F02D 13/0203 (2013.01); F02D 13/0223 (2013.01); F02D 13/0234 (2013.01); F02D 13/0242 (2013.01); F02D 13/0249 (2013.01); F02D 13/08 (2013.01); F02D 41/009 (2013.01); F02D 41/042 (2013.01); F02D 2041/001 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A stop control device for an internal combustion engine, wherein the internal combustion engine is a four-cycle internal combustion engine and includes an electric valve opening and closing timing control device that is configured to set an opening and closing timing of an intake valve,
wherein the stop control device comprises programming to perform 1) stop control of stopping the internal combustion engine when a stop signal for stopping the internal combustion engine is acquired, 2) post-stop phase control of displacing the intake opening and closing timing of the valve opening and closing timing control device to a most retarded angle when the internal combustion engine is stopped by the stop control, and 3) pre-stop phase control of displacing the intake opening and closing timing of the valve opening and closing timing control device to a most advanced angle after the stop signal for stopping the internal combustion engine is acquired and before the internal combustion engine is stopped by the stop control.