公开(公告)号：US10859028B2

公开(公告)日：2020-12-08

申请号：US15763209

申请日：2016-11-04

Applicant: MAZDA MOTOR CORPORATION

Inventor： Hiroaki Horiuchi ,  Shuhei Shintani ,  Shigeru Nakagawa

IPC: F02D41/40 ,  F02D41/24 ,  F02D41/34 ,  F02D41/20 ,  F02M63/00

Abstract: Disclosed is a fuel injection control device for an engine equipped with a solenoid-type fuel injector 67. The fuel injection control device comprises: a voltage sensor SW19 configured to detect a voltage of a solenoid of the fuel injector 67; and a PCM 10 configured to set a valve-open period of the fuel injector 67, based on a fuel injection amount according to an operation state of the engine 1, and control the fuel injector 67 based on the valve-open period. The PCM 10 is configured to perform correction for gradually shortening the set valve-open period, as the voltage (residual voltage) detected by the voltage sensor SW19 when opening the fuel injector becomes larger, and control the fuel injector 67 based on the corrected valve-open period.

公开(公告)号：US10240491B2

公开(公告)日：2019-03-26

申请号：US15007468

申请日：2016-01-27

Applicant: Mazda Motor Corporation

Inventor： Shuhei Shintani ,  Takuji Okumura ,  Hiroaki Horiuchi ,  Shigeru Nakagawa

IPC: B60T7/12 ,  F01L1/34 ,  F02M26/23 ,  F02M26/01 ,  F02D41/00 ,  F02D41/30 ,  F02D35/02 ,  F02D13/02 ,  F02M26/47 ,  F01L1/344 ,  F02M26/00 ,  F02B1/12 ,  F02B17/00 ,  F02M25/10

Abstract: A control system of an engine is provided. The control system includes an exhaust variable valve mechanism for changing an operation mode of an exhaust valve, a fuel injection controlling module for controlling a fuel injector to inject fuel at a fuel injection timing associated with an operating state of the engine, a variable valve mechanism controlling module for operating the exhaust valve via the exhaust variable valve mechanism in a first operation mode when the operating state of the engine is within a compression self-ignition range, and in a second operation mode when the operating state of the engine is within a spark-ignition range, and a first in-cylinder state quantity estimating module for estimating a first state quantity inside the cylinder relating to a burned gas amount within the cylinder.

公开(公告)号：US20160245128A1

公开(公告)日：2016-08-25

申请号：US15007468

申请日：2016-01-27

Applicant: Mazda Motor Corporation

Inventor： Shuhei Shintani ,  Takuji Okumura ,  Hiroaki Horiuchi ,  Shigeru Nakagawa

IPC: F01L1/34 ,  F02M57/04 ,  F02M26/00

CPC classification number: F01L1/34 ,  F01L1/344 ,  F02B1/12 ,  F02B17/005 ,  F02D13/0207 ,  F02D13/0219 ,  F02D35/02 ,  F02D35/026 ,  F02D41/0062 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/001 ,  F02M25/10 ,  F02M26/01 ,  F02M26/23 ,  F02M26/47 ,  F02M2026/009 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/47

Abstract: A control system of an engine is provided. The control system includes an exhaust variable valve mechanism for changing an operation mode of an exhaust valve, a fuel injection controlling module for controlling a fuel injector to inject fuel at a fuel injection timing associated with an operating state of the engine, a variable valve mechanism controlling module for operating the exhaust valve via the exhaust variable valve mechanism in a first operation mode when the operating state of the engine is within a compression self-ignition range, and in a second operation mode when the operating state of the engine is within a spark-ignition range, and a first in-cylinder state quantity estimating module for estimating a first state quantity inside the cylinder relating to a burned gas amount within the cylinder.

Abstract translation: 提供发动机的控制系统。 控制系统包括用于改变排气门的操作模式的排气可变阀机构，用于控制燃料喷射器以与发动机的运行状态相关联的燃料喷射正时喷射燃料的燃料喷射控制模块，可变气门机构 控制模块，其用于在所述发动机的运转状态处于压缩自燃范围内时，经由所述排气可变气门机构，在所述第一运转模式下运转所述排气阀;以及在所述发动机的运转状态为第 火花点火范围，以及第一缸内状态量估计模块，用于估计与气缸内的燃烧气体量相关的气缸内的第一状态量。