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公开(公告)号：US20180245529A1
公开(公告)日：2018-08-30
申请号：US15757624
申请日：2017-02-03
Applicant: MAZDA MOTOR CORPORATION
Inventor： Tadasuke Matsumoto , Shouichi Aiga , Yoshitomo Matsuo , Kazuhiro Nishimura , Tomoaki Fujiyama
CPC classification number: F02D41/0052 , F02B37/18 , F02B37/22 , F02D21/08 , F02D41/0077 , F02M26/01 , F02M26/05 , F02M26/07 , F02M26/22 , F02M26/47 , F02P5/045 , Y02T10/144
Abstract: An engine control device including: a turbocharger; an EGR device that includes an EGR passage, an EGR valve, and an EGR cooler; and a PCM that, based on an operation state of an engine, controls the EGR valve to adjust an EGR rate that is a ratio of an EGR gas amount to a total amount of gas introduced to a cylinder of the engine. The PCM controls the EGR valve such that, in a high load range and a medium load range for the engine, the EGR device recirculates the EGR gas into an intake passage; and controls the EGR valve such that an EGR rate in the high load range is lower than an EGR rate in the medium load range at a same engine speed.
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公开(公告)号：US20170009698A1
公开(公告)日：2017-01-12
申请号：US15183204
申请日：2016-06-15
Applicant: Mazda Motor Corporation
Inventor： Takeshi Tsugawa , Hiroki Morimoto , Nobuhiko Yokoyama , Shouichi Aiga , Yoshitomo Matsuo , Tomoaki Fujiyama , Yoshitaka Wada
CPC classification number: F02D41/401 , F02B23/104 , F02B31/00 , F02B2023/106 , F02B2075/125 , F02B2275/48 , F02D13/0207 , F02D37/02 , F02D41/402 , F02D2041/001 , F02D2041/0015 , F02D2041/389 , F02M61/14 , G01M15/042 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/18 , Y02T10/44
Abstract: Provided is a control device of an engine that can certainly suppress and avoid pre-ignition. A control device of an engine is an engine control device for controlling the behavior of fuel that is directly injected into a combustion chamber of a cylinder by a tumble flow, and it has an injector that directly injects the fuel into the combustion chamber, an intake port that generates the tumble flow in the combustion chamber, and an ECU that injects the fuel from the injector at a plurality of injection timings including an intake-stroke-early-half injection timing that is set at an early half of the intake stroke of the cylinder, when an operating state of the engine is in a high-load, low-rotation range.
Abstract translation: 本发明提供一种能够可靠地抑制和避免点火前的发动机的控制装置。 发动机的控制装置是用于通过滚筒控制直接喷射到气缸的燃烧室中的燃料的行为的发动机控制装置，并且其具有将燃料直接喷射到燃烧室中的喷射器，进气口 在燃烧室中产生翻滚流的端口，以及ECU，其以多个喷射定时从喷射器喷射燃料，所述多个喷射定时包括设定在进气冲程的早期一半的进气冲程 - 半预喷射正时 当发动机的操作状态处于高负载，低旋转范围时，气缸。
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公开(公告)号：US10408144B2
公开(公告)日：2019-09-10
申请号：US15757624
申请日：2017-02-03
Applicant: MAZDA MOTOR CORPORATION
Inventor： Tadasuke Matsumoto , Shouichi Aiga , Yoshitomo Matsuo , Kazuhiro Nishimura , Tomoaki Fujiyama
IPC: F02D41/00 , F02M26/07 , F02P5/04 , F02B37/18 , F02B37/22 , F02M26/05 , F02M26/01 , F02D21/08 , F02M26/22 , F02M26/47
Abstract: An engine control device including: a turbocharger; an EGR device that includes an EGR passage, an EGR valve, and an EGR cooler; and a PCM that, based on an operation state of an engine, controls the EGR valve to adjust an EGR rate that is a ratio of an EGR gas amount to a total amount of gas introduced to a cylinder of the engine. The PCM controls the EGR valve such that, in a high load range and a medium load range for the engine, the EGR device recirculates the EGR gas into an intake passage; and controls the EGR valve such that an EGR rate in the high load range is lower than an EGR rate in the medium load range at a same engine speed.
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公开(公告)号：US09897034B2
公开(公告)日：2018-02-20
申请号：US15183204
申请日：2016-06-15
Applicant: Mazda Motor Corporation
Inventor： Takeshi Tsugawa , Hiroki Morimoto , Nobuhiko Yokoyama , Shouichi Aiga , Yoshitomo Matsuo , Tomoaki Fujiyama , Yoshitaka Wada
IPC: F02D41/40 , G01M15/04 , F02M61/14 , F02D37/02 , F02B31/00 , F02B23/10 , F02D13/02 , F02D41/38 , F02D41/00 , F02B75/12
CPC classification number: F02D41/401 , F02B23/104 , F02B31/00 , F02B2023/106 , F02B2075/125 , F02B2275/48 , F02D13/0207 , F02D37/02 , F02D41/402 , F02D2041/001 , F02D2041/0015 , F02D2041/389 , F02M61/14 , G01M15/042 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/18 , Y02T10/44
Abstract: Provided is a control device of an engine that can certainly suppress and avoid pre-ignition. A control device of an engine is an engine control device for controlling the behavior of fuel that is directly injected into a combustion chamber of a cylinder by a tumble flow, and it has an injector that directly injects the fuel into the combustion chamber, an intake port that generates the tumble flow in the combustion chamber, and an ECU that injects the fuel from the injector at a plurality of injection timings including an intake-stroke-early-half injection timing that is set at an early half of the intake stroke of the cylinder, when an operating state of the engine is in a high-load, low-rotation range.
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