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公开(公告)号：US20160265482A1
公开(公告)日：2016-09-15
申请号：US15032917
申请日：2014-10-23
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kazuhiro Nagatsu , Atsushi Inoue , Kota Matsumoto , Takashi Kaminaga , Toru Miyamoto , Takashi Youso
CPC classification number: F02D21/06 , F02B1/12 , F02B23/101 , F02B29/0418 , F02B29/0437 , F02B2023/102 , F02D13/0207 , F02D13/0219 , F02D13/0265 , F02D41/0025 , F02D41/0057 , F02D41/006 , F02D41/0065 , F02D41/3035 , F02D2041/3052 , F02M25/12 , F02M26/01 , F02M26/14 , F02M26/25 , F02M26/33 , Y02T10/128 , Y02T10/146 , Y02T10/18 , Y02T10/47
Abstract: A control device for a compression ignition engine includes a controller configured to operate an engine body by compression ignition combustion when the engine body operates in a compression ignition range. When the engine body operates in a low load range with a load lower than a predetermined load in the compression ignition range, the controller sets a time of fuel injection with the fuel injection valve in a first half of a compression stroke or earlier, and allows the ozonator to introduce the ozone into the cylinder. When the engine body operates in the low load range, the controller controls an ozone concentration to be lower at a higher speed than at a low speed.
Abstract translation: 压缩点火式发动机的控制装置包括：控制器，被配置为当发动机主体在压缩点火范围内操作时通过压缩点火燃烧来操作发动机主体。 当发动机主体在压缩点火范围内的负载低于预定负荷的低负载范围下工作时，控制器将燃料喷射阀的燃料喷射时间设定在压缩行程的前半段或更早时间，并允许 将臭氧引入气瓶的臭氧发生器。 当发动机主体在低负载范围内工作时，控制器以比低速更高的速度控制臭氧浓度较低。
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公开(公告)号：US20150083073A1
公开(公告)日：2015-03-26
申请号：US14464581
申请日：2014-08-20
Applicant: Mazda Motor Corporation
Inventor： Kazuhiro Nagatsu , Junichi Taga , Atsushi Inoue , Takashi Youso , Mitsunori Wasada , Keiji Araki
CPC classification number: F02D41/123 , F02B1/14 , F02D13/0261 , F02D35/025 , F02D41/0005 , F02D41/0025 , F02D41/0057 , F02D41/006 , F02D41/0077 , F02D41/126 , F02D41/1438 , F02D41/3005 , F02D41/3035 , F02D41/3076 , F02D41/401 , F02D2041/001 , F02M25/12 , F02M26/25 , Y02T10/128
Abstract: A control device of a compression-ignition engine is provided. The device includes an engine having a cylinder, a fuel injection valve for injecting a fuel, an exhaust valve mechanism for switching an operation mode of an exhaust valve between a normal mode and an open-twice mode, a throttle valve disposed on an intake passage, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder at least within a low engine load range. The controller suspends the fuel injection by the fuel injection valve when a predetermined fuel cut condition is met while the engine decelerates, and the controller fully closes the throttle valve and controls the exhaust valve mechanism to operate in the open-twice mode during the fuel cut. When a predetermined fuel resuming condition is met, the controller restarts the fuel injection, opens the throttle valve, and causes the compression-ignition combustion.
Abstract translation: 提供了一种压缩点火式发动机的控制装置。 该装置包括具有气缸的发动机，用于喷射燃料的燃料喷射阀，用于切换正常模式和二次打开模式之间的排气阀的操作模式的排气阀机构，设置在进气通道上的节流阀 以及控制器，其用于通过至少在低发动机负载范围内的气缸内的混合气体的压缩点火燃烧来操作发动机。 当发动机减速时达到预定的燃料切断条件时，控制器暂停燃料喷射阀的燃料喷射，并且控制器完全关闭节气门并且控制排气门机构在燃料切断期间以开二次模式运行 。 当满足预定的燃料恢复条件时，控制器重新启动燃料喷射，打开节流阀，并引起压燃式燃烧。
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公开(公告)号：US20150083072A1
公开(公告)日：2015-03-26
申请号：US14464569
申请日：2014-08-20
Applicant: Mazda Motor Corporation
Inventor： Kazuhiro Nagatsu , Junichi Taga , Takashi Youso , Atsushi Inoue , Mitsunori Wasada , Keiji Araki
CPC classification number: F02D41/005 , F02B1/10 , F02B1/14 , F02D13/0261 , F02D41/0025 , F02D41/0057 , F02D41/006 , F02D41/0065 , F02D41/0077 , F02D41/3035 , F02D41/3836 , F02D41/401 , F02M25/12 , F02M26/33 , Y02T10/128 , Y02T10/18 , Y02T10/44 , Y02T10/47
Abstract: A control device of a compression-ignition engine is provided. The control device includes the engine having a cylinder, an exhaust gas recirculation system for introducing exhaust gas into the cylinder, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder within a predetermined compression-ignitable range on a low engine load side. Within the compression-ignitable range, the controller sets an EGR ratio higher as the engine load becomes lower, and the controller sets the EGR ratio to a predetermined highest EGR ratio when the engine load is at a specific load that is on the low engine load side within the compression-ignitable range. When the engine load is lower than the specific load, the controller sets the EGR ratio to be lower than the highest EGR ratio.
Abstract translation: 提供了一种压缩点火式发动机的控制装置。 控制装置包括具有气缸的发动机，用于将废气引入气缸的排气再循环系统，以及控制器，用于通过在预定的压缩可燃范围内的气缸内的混合气体的压缩点火燃烧来操作发动机 低发动机负荷侧。 在压缩可燃范围内，当发动机负荷变低时，控制器将EGR率设定为较高，并且当发动机负载处于低发动机负荷的特定负荷时，控制器将EGR率设定为预定的最高EGR率 在压缩可燃范围内。 当发动机负荷低于特定负荷时，控制器将EGR率设定为低于最高EGR率。
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公开(公告)号：US20140299107A1
公开(公告)日：2014-10-09
申请号：US14346947
申请日：2012-11-08
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kouhei Iwai , Masahisa Yamakawa , Takashi Youso , Tatsuya Fujikawa , Tatsuya Koga
IPC: F02D41/32
CPC classification number: F02D41/401 , F02D41/006 , F02D41/0065 , F02D41/3029 , F02D41/3035 , F02D41/3064 , F02D41/32 , Y02T10/44 , Y02T10/47
Abstract: An engine body includes a cylinder with a geometrical compression ratio of 15 or higher, and is supplied with fuel containing at least gasoline. When an operating mode of the engine body is in a high load range, a controller (i.e., a PCM 10) drives a fuel injection valve (i.e., an injector) 67 to inject the fuel at a time within a retarded period between a terminal stage of a compression stroke and an initial stage of an expansion stroke in a low speed range. The controller drives the fuel injection valve to inject the fuel in an intake stroke until an intake valve 21 is closed in a high-load high-speed range.
Abstract translation: 发动机主体包括几何压缩比为15或更高的气缸，并且供给至少含有汽油的燃料。 当发动机主体的操作模式处于高负载范围时，控制器（即，PCM 10）驱动燃料喷射阀（即，喷射器）67，以在延迟期间的时间内在燃料喷射阀 压缩行程的阶段和低速范围内的膨胀冲程的初始阶段。 控制器驱动燃料喷射阀以在进气冲程中喷射燃料，直到进气门21在高负载高速范围内关闭。
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