Invention Grant
- Patent Title: Stop position controller for engine
-
Application No.: US17665181Application Date: 2022-02-04
-
Publication No.: US11542907B2Publication Date: 2023-01-03
- Inventor: Hirotaka Yamakawa , Hiromu Sugano , Kenji Tanimura , Toru Kobayashi , Daisuke Shimo
- Applicant: Mazda Motor Corporation
- Applicant Address: JP Hiroshima
- Assignee: Mazda Motor Corporation
- Current Assignee: Mazda Motor Corporation
- Current Assignee Address: JP Hiroshima
- Agency: Alleman Hall Creasman & Tuttle LLP
- Priority: JPJP2021-051345 20210325
- Main IPC: F02N19/00
- IPC: F02N19/00

Abstract:
An intake variable valve timing mechanism (VVT) that collectively changes an intake valve close timing as a close timing of a plurality of intake valves and a control device that controls an engine including a plurality of injectors and the intake VVT are provided. When a specified engine stop condition is satisfied, a fuel cut is performed to stop a fuel supply into a plurality of cylinders by the injector. After the fuel cut, the intake VVT is controlled such that a retarded amount of the intake valve close timing immediately before a stop of a stop-time compression stroke cylinder as a cylinder stopped in a compression stroke from intake bottom dead center is larger than a retarded amount of the intake valve close timing immediately before a stop of a stop-time expansion stroke cylinder as a cylinder stopped in an expansion stroke from the intake bottom dead center.
Public/Granted literature
- US20220307457A1 STOP POSITION CONTROLLER FOR ENGINE Public/Granted day:2022-09-29
Information query