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公开(公告)号：US09845755B2
公开(公告)日：2017-12-19
申请号：US15176578
申请日：2016-06-08
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
CPC classification number: F02D41/1454 , F02D19/0636 , F02D35/02 , F02D35/023 , F02D35/025 , F02D35/028 , F02D41/0025 , F02D41/144 , F02D2200/06 , F02D2200/0612 , F02D2250/38 , F02M26/25 , Y02T10/36
Abstract: A combustion system controller controls an operation of a combustion system including an internal combustion engine. The combustion system controller includes a mixing ratio acquisition portion and a control portion. The mixing ratio acquisition portion acquires the mixing ratios of various components included in a fuel. The control portion controls the operation of the combustion system based on the mixing ratios acquired by the mixing ratio acquisition portion.
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公开(公告)号：US10859010B2
公开(公告)日：2020-12-08
申请号：US15773583
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
Abstract: A fuel passage leads a fuel from a pressure-accumulation vessel to a nozzle hole of a fuel injection valve. A fuel pressure sensor detects a fuel pressure in a fuel passage. An estimation device is applicable to a combustion system, which includes these components, and includes a mixing acquisition unit and an injection amount estimation unit. The mixing acquisition unit acquires the mixing ratio of various components contained in the fuel used for combustion in the internal combustion engine. The injection amount estimation unit estimates an injection amount of the fuel from the nozzle hole according to a change mode of the fuel pressure, which is detected with the fuel pressure sensor and associated with injection of the fuel from a nozzle hole, and the mixing ratio acquired with the mixing acquisition unit.
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公开(公告)号：US11112333B2
公开(公告)日：2021-09-07
申请号：US15763602
申请日：2016-09-21
Applicant: DENSO CORPORATION
Inventor： Atsunori Okabayashi , Shinya Hoshi
IPC: G01M15/02 , F02D35/02 , F02D19/06 , F02D41/22 , F02B77/08 , F02B77/04 , G01M15/04 , G01M15/08 , G01M15/11 , F02M26/25
Abstract: A sensor failure diagnostic apparatus includes a first estimation unit to estimate a mixing ratio of each type of a molecular structure included in a fuel, based on combustion parameters when a combustion of an internal combustion engine is executed in different combustion conditions, among the combustion parameters sensed by a combustion sensor, a second estimation unit to estimate the mixing ratio, based on characteristic parameters sensed by a characteristic sensor, a combustion sensor diagnostic unit to determine whether a failure of the combustion sensor exists, based on a sensed value of the combustion sensor when the combustion is not executed, and a characteristic sensor diagnostic unit to determine whether a failure of the characteristic sensor exists, by comparing the mixing ratio estimated by the first estimation unit with the mixing ratio estimated by the second estimation unit when the combustion sensor diagnostic unit determines the combustion sensor is normal.
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公开(公告)号：US10794321B2
公开(公告)日：2020-10-06
申请号：US15773590
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
Abstract: An estimation device is applicable to a combustion system including an internal combustion engine and includes a mixing acquisition unit, a main region estimation unit, and an after region estimation unit. The mixing acquisition unit acquires a mixing ratio of various components contained in the fuel used for combustion in the internal combustion engine. The main region estimation unit estimates a combustion region of the fuel as a main combustion region for a main combustion produced by injecting the fuel into a combustion chamber of the internal combustion engine by main injection, based on the mixing ratio acquired by the mixing acquisition unit. The after region estimation unit estimates an injection region of the fuel as the after combustion region based on the mixing ratio, for an after combustion produced by injecting the fuel into the combustion chamber by an after injection, after the main injection in one combustion cycle.
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公开(公告)号：US10760502B2
公开(公告)日：2020-09-01
申请号：US15773575
申请日：2016-10-18
Applicant: DENSO CORPORATION
Inventor： Atsunori Okabayashi , Shinya Hoshi
IPC: F02D1/02 , F02D35/02 , F02D19/06 , F02D41/00 , F02D19/02 , F02M59/44 , F02D41/38 , F02D41/22 , F02M63/02 , F02M63/00
Abstract: A lubricity estimation device is applied to a fuel supply system that supplies a fuel to an internal combustion engine, and includes a mixing ratio estimation unit and a lubrication index calculation unit. The mixing ratio estimation unit estimates the mixing ratio of each of plural types of molecular structures included in the fuel. The lubrication index calculation unit calculates a lubrication index, representing the lubricity of an outer peripheral portion S1 of the piston of a fuel pump and an outer peripheral portion of the valve body of a fuel injection valve by the fuel, based on the mixing ratio estimated by the mixing ratio estimation unit.
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Patent Agency Ranking
公开(公告)号：US10907561B2
公开(公告)日：2021-02-02
申请号：US15773625
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
Abstract: An estimation device is applicable to a combustion system including an internal combustion engine. The estimation device includes a mixing acquisition unit, a combustion amount estimation unit, and a region estimation unit. The mixing acquisition unit acquires the mixing ratio of various components contained in the fuel used for combustion in the internal combustion engine. The combustion amount estimation unit estimates a main combustion amount of the fuel caused by a main combustion produced by injecting the fuel into a combustion chamber of the internal combustion engine with a main injection, based on the mixing ratio acquired by the mixing acquisition unit. The region estimation unit estimates a combustion region of the main combustion in the combustion chamber based on the mixing ratio acquired by the mixing acquisition unit.
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公开(公告)号：US10669958B2
公开(公告)日：2020-06-02
申请号：US15773584
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
IPC: F02D41/02 , F02D41/40 , F02D41/00 , F02D41/04 , F02D35/02 , F02D45/00 , F02D13/02 , F02D19/06 , F02D41/14
Abstract: An estimation device that is applicable to a combustion system including an internal combustion engine includes a mixing acquisition unit, a combustion amount estimation unit, a region estimation unit, and a timing estimation unit. The mixing acquisition unit acquires a mixing ratio of various components contained in the fuel used for combustion in the internal combustion engine. The combustion amount estimation unit estimates a combustion amount of the fuel caused by a pilot combustion produced by injecting the fuel into a combustion chamber of the internal combustion engine with a pilot injection, based on the mixing ratio acquired by the mixing acquisition unit. The region estimation unit estimates a combustion region of the pilot combustion in the combustion chamber based on the mixing ratio. The timing estimation unit estimates an ignition timing, at which an ignition occurs in the combustion chamber with the pilot injection, based on the mixing ratio.
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公开(公告)号：US10280849B2
公开(公告)日：2019-05-07
申请号：US15774404
申请日：2016-11-04
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
Abstract: An ECU, as a combustion system control device, includes various control units such as a first estimation unit, a second estimation unit, a comparison/selection unit, and an injection control unit. The first estimation unit estimates, as a first estimation value, the mixing ratio of each molecular structure species contained in fuel based on the value detected by an in-cylinder pressure sensor that is a combustion sensor. The second estimation unit estimates, as a second estimation value, the above mixing ratio based on the values detected by a density sensor and a dynamic viscosity sensor that are property sensors. The comparison/selection unit compares the first estimation value with the second estimation value to select an estimation value with higher estimation accuracy, and various control units such as the injection control unit control the operation of a combustion system by using the selected estimation value.
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公开(公告)号：US10724464B2
公开(公告)日：2020-07-28
申请号：US15773578
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Shinya Hoshi , Atsunori Okabayashi
Abstract: An estimation device is applicable to a combustion system in which relative movement of a piston to a cylinder is lubricated with a lubricating oil. An estimation device includes a mixing acquisition unit and a piercing force estimation unit. The mixing acquisition unit acquires a mixing ratio of various components contained in a fuel injected into the combustion chamber. The piercing force estimation unit estimates a piercing force of the fuel injected into the combustion chamber according to the mixing ratio acquired with the mixing acquisition unit to manage reach of the fuel, which is injected into the combustion chamber of the internal combustion engine, at least one of the cylinder and the piston.
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公开(公告)号：US10590881B2
公开(公告)日：2020-03-17
申请号：US15773604
申请日：2016-09-13
Applicant: DENSO CORPORATION
Inventor： Atsunori Okabayashi , Shinya Hoshi
Abstract: An estimation device applicable to a combustion system having an internal combustion engine includes a mixing acquisition unit, a combustion amount estimation unit, a region estimation unit, and a timing estimation unit. The mixing acquisition unit acquires a mixing ratio of various components contained in fuel used for combustion in the internal combustion engine. The combustion amount estimation unit estimates a combustion amount of fuel caused by a post combustion generated by injecting fuel into a combustion chamber of the internal combustion engine by post injection, based on the mixing ratio acquired by the mixing acquisition unit. The region estimation unit estimates a combustion region of the post combustion in the combustion chamber based on the mixing ratio. The timing estimation unit estimates an ignition timing at which ignition occurs in the combustion chamber by the post injection based on the mixing ratio.
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