-
公开(公告)号：US20230399965A1
公开(公告)日：2023-12-14
申请号：US18329663
申请日：2023-06-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Toru YAEO , Yoshifumi MATSUDA , Masashi HAKARIYA , Atsushi MORIKAWA , Ikuo HODA , Noriyasu ADACHI , Masanori HAYASHI , Kenji IGAWA
Abstract: A controller for an internal combustion engine is configured to execute a regeneration process of burning and removing particulate matter accumulated in an exhaust purification device, a determination process of determining that a deviation between a first change amount and a second change amount is less than or equal to a threshold, the first change amount and the second change amount being change amounts per unit time of the temperature of exhaust gas on the upstream side and the downstream side of the exhaust purification device, respectively, and an anomaly diagnosing process that determines that the exhaust purification device is in a detached state when the determination process determines that the deviation is less than or equal to the threshold. The controller is configured to not execute the determination process during a period from the end of the regeneration process to when a post-regeneration execution condition is met.
-
公开(公告)号：US20210231063A1
公开(公告)日：2021-07-29
申请号：US17151875
申请日：2021-01-19
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Noriyasu KOBASHI , Noriyasu ADACHI , Yusuke SAITO
Abstract: An internal combustion engine comprises an engine body, a filter provided in an exhaust passage of the engine body and trapping particulate matter in the exhaust, and a temperature sensor detecting a temperature of gas flowing cut from the filter. A control device controlling this internal combustion engine comprises a fuel cut control pan configured to perform fuel cut control stopping a supply of fuel to a combustion chamber of the engine body and a forced ending part configured to forcibly make the fuel cut control end even if a condition for performance of fuel cut control had stood based on a trend in change of temperature of the gas temperature detected by the temperature sensor.
-
公开(公告)号：US20200217235A1
公开(公告)日：2020-07-09
申请号：US16730055
申请日：2019-12-30
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Noriyasu KOBASHI , Noriyasu ADACHI , Yusuke SAITO
Abstract: An exhaust purification system of an internal combustion engine comprises a filter trapping particulate matter in exhaust gas, a differential pressure sensor detecting a differential pressure before and after the filter or a differential pressure between a pressure in the exhaust passage and an atmospheric pressure, a temperature sensor detecting a temperature of exhaust gas, and a deposition calculating part configured to calculate an amount of particulate matter deposited at the filter. The deposition calculating part is configured to calculate a first estimated value of an amount of the particulate matter based on the differential pressure, calculate a second estimated value of an amount of the particulate matter based on an amount of increase of temperature of the exhaust gas, and calculate an amount of the particulate matter based on the first estimated value and the second estimated value.
-
公开(公告)号：US20160123253A1
公开(公告)日：2016-05-05
申请号：US14897086
申请日：2013-06-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yusuke SAITO , Satoru TANAKA , Satoshi YOSHIZAKI , Ryutaro MORIGUCHI , Yosuke MATSUMOTO , Noriyasu ADACHI
CPC classification number: F02D37/02 , F01L1/34 , F02D41/0002 , F02D41/0007 , F02D41/045 , F02D41/1456 , F02D41/3029 , F02D41/3064 , F02D41/307 , F02D2041/001 , F02D2041/1412 , F02P9/002 , Y02T10/144 , Y02T10/42
Abstract: A target air amount for achieving a requested torque is calculated from the requested torque by using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from an operation by the first air-fuel ratio to an operation by the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, a target valve timing is switched from a first valve timing to a second valve timing.
Abstract translation: 通过使用虚拟空燃比，根据要求的扭矩计算出用于实现要求转矩的目标空气量。 响应于将操作模式从第一空燃比的操作切换到通过第二空气燃料比的操作的条件，虚拟空燃比从第一空燃比变为第二空燃比。 燃料比得到满足。 在虚拟空燃比从第一空燃比变为第二空燃比之后，将目标空燃比从第一空燃比转换为第二空燃比。 在虚拟空燃比从第一空燃比变为第二空燃比之后，将目标气门正时从第一气门正时切换到第二气门正时。
-
公开(公告)号：US20190010887A1
公开(公告)日：2019-01-10
申请号：US16026948
申请日：2018-07-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keisuke SASAKI , Noriyasu ADACHI , Shigehiro SUGIHIRA , Takayoshi KAWAI , Shinji SADAKANE , Kaoru OTSUKA
Abstract: An electronic control unit of a control device for an internal combustion engine executes, for a first cycle, first drive processing for controlling an actuator such that a pin drive operation is executed for switching from a first cam to a second cam, executes second drive processing for controlling the actuator such that the pin drive operation is executed again for a second cycle, and executes abnormality determination processing for determining that a cam switching mechanism has an abnormality in a case where a pin returns to a reference position by using a pin return section following a cam switching section of the first cycle after the execution of the first drive processing and the pin returns to the reference position by using the pin return section following the cam switching section of the second cycle after the execution of-the second drive processing.
-
Patent Agency Ranking
公开(公告)号：US20180274393A1
公开(公告)日：2018-09-27
申请号：US15877437
申请日：2018-01-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takayoshi KAWAI , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Kaoru OTSUKA , Shinji SADAKANE , Hiroyuki SUGIHARA
CPC classification number: F01L1/047 , F01L1/08 , F01L13/0015 , F01L13/0036 , F01L2013/0052 , F01L2800/01 , F01L2820/04 , F01L2820/041 , F01L2820/042 , F02D41/00 , F02D41/0002 , F02D41/062 , F02D2041/001 , F02D2041/0092 , F16H53/025
Abstract: At crank angle CA10 at which the switch request of the drive cam was issued, the ejection operations of the pins at all the solenoid actuators started simultaneously. The ejected pins are seated on the cam carriers at erank angle CA12. The pin seated on the cam carrier moves along the grooves in accordance with the rotation of the cam carrier. The earliest finish timing of the switch operation of the drive cam is at crank angle CA13 (#4 cylinder). At the crank angle CA13, drive of the fuel injector and the ignition device in each cylinder is permitted.
-
公开(公告)号：US20180252125A1
公开(公告)日：2018-09-06
申请号：US15864656
申请日：2018-01-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keisuke SASAKI , Noriyasu ADACHI , Shigehiro SUGIHIRA , Takayoshi KAWAI , Shinji SADAKANE , Hiroyuki SUGIHARA , Kaoru OHTSUKA
CPC classification number: F01L13/0036 , F01L1/047 , F01L1/053 , F01L2013/0052 , F01L2013/101 , F01L2013/113 , F01L2013/116 , F01L2250/02 , F01L2250/04
Abstract: An internal combustion engine system is provided with a cam switching device including a cam groove provided on the outer peripheral surface or a camshaft and an actuator capable of protruding, toward the camshaft, an engagement pin that is engageable with the cam groove. The internal combustion engine system is configured, in causing the cam switching device to perform a cam switching operation, to control the actuator such that the engagement pin is seated on a forward outer peripheral surface which is located more forward than an end of the cam groove on the forward side with respect to an insert section of the cam groove in the rotational direction of the camshaft.
-
公开(公告)号：US20180163654A1
公开(公告)日：2018-06-14
申请号：US15784567
申请日：2017-10-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroyuki SUGIHARA , Kaoru OTSUKA , Shinji SADAKANE , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Takayoshi KAWAI
CPC classification number: F02D41/062 , F01L13/0036 , F01L2013/0052 , F01L2013/0078 , F01L2800/11 , F01L2800/12 , F02D13/0238 , F02D41/0085 , F02D2041/001
Abstract: In starting the engine, if it is determined that large cams are not completely prepared for all driving cams, valve closing timings of all intake valves are changed by driving the VVT so that all of the cylinders have equal in-cylinder filling efficiency. A fuel injection amount of each cylinder is determined by a feedforward control assuming that the large cams are completely prepared for all of the driving cams. When the valve closing timing of all of the intake valves are changed by driving the VVT to equalize the in-cylinder filling efficiencies of all of the cylinders, all of the cylinders have substantially equal in-cylinder air-fuel ratios.
-
公开(公告)号：US20160363071A1
公开(公告)日：2016-12-15
申请号：US15132517
申请日：2016-04-19
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke MATSUMOTO , Noriyasu ADACHI
CPC classification number: F02D41/0275 , F01N3/0814 , F01N3/0842 , F02B37/00 , F02B37/12 , F02B37/18 , F02B37/183 , F02B37/24 , F02D41/0002 , F02D41/0007 , F02D41/146 , F02D41/1475 , F02D2200/0406 , F02D2200/0625 , Y02T10/144 , Y02T10/42
Abstract: According to first quantity of state control, a rich spike is executed while actuating a WGV so as to decrease turbocharging pressure, and after completion of the rich spike, the WGV is actuated to raise the turbocharging pressure again, the combustion air-fuel ratio is adjusted to the theoretical air-fuel ratio while suppressing an air amount by a throttle so as not to vary shaft torque until the turbocharging pressure is restored, and upon the turbocharging pressure being restored the air amount is increased by the throttle and the combustion air-fuel ratio is returned to a lean air-fuel ratio. According to second quantity of state control, a rich spike is executed while actuating the WGV so as to maintain the turbocharging pressure, and after completion of the rich spike, the air amount is increased by the throttle and the combustion air-fuel ratio is returned to a lean air-fuel ratio.
Abstract translation: 根据第一数量的状态控制，在启动WGV时执行丰富的峰值，以降低涡轮增压压力，并且在完成丰富的峰值之后，WGV被致动以再次提高涡轮增压压力，燃烧空燃比为 调节到理论空燃比，同时通过节流阀抑制空气量，以便在涡轮增压压力恢复之前不改变轴扭矩，并且当涡轮增压压力恢复时，空气量由节气门和燃烧空气 - 燃料比返回到稀空燃比。 根据第二数量的状态控制，在致动WGV时执行丰富的峰值以维持涡轮增压压力，并且在丰富的峰值完成之后，通过节气门增加空气量并且返回燃烧空燃比 到稀薄的空燃比。
-
公开(公告)号：US20160245191A1
公开(公告)日：2016-08-25
申请号：US15047012
申请日：2016-02-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yusuke SAITO , Noriyasu ADACHI , Akira EIRAKU
CPC classification number: F02D17/02 , F01N13/107 , F02B33/40 , F02B37/001 , F02B37/007 , F02B37/18 , F02B37/22 , F02D13/06 , F02D23/02 , F02D41/0007 , F02D41/0087 , F02D41/187 , F02D41/3005 , F02D2041/0012 , F02D2200/0406 , F02M26/06 , Y02T10/144 , Y02T10/18
Abstract: In a multiple cylinder supercharged engine, when reduced cylinder operation is executed, a throttle, which is located downstream of a compressor driven by a turbine provided in an exhaust passage, through which exhaust gas of a cylinder group flows, is operated to a fully closed state, wherein the reduced cylinder operation is applied to the cylinder group. A fuel injection amount of at least one cylinder included in the cylinder group is made smaller than a fuel injection amount of a cylinder included in another cylinder group, and this at least one cylinder is operated, in order to increase rotational speed of the compressor, so that a value of pressure of an upstream side of the throttle is controlled to a value, which is equal to or larger than a value of pressure of a downstream side of the throttle.
Abstract translation: 在多缸增压发动机中，当执行减缸操作时，位于由设置在排气通道中的涡轮机驱动的压缩机的下游的气缸（气缸组的排气通过该节气门流动）被操作到完全关闭 状态，其中减缸操作被施加到气缸组。 包括在气缸组中的至少一个气缸的燃料喷射量被制成小于包括在另一个气缸组中的气缸的燃料喷射量，并且该至少一个气缸被操作，以便增加压缩机的转速， 使得节流阀的上游侧的压力值被控制在等于或大于节气门下游侧的压力值的值。
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.018 seconds)
