-
公开(公告)号：US10221799B2
公开(公告)日：2019-03-05
申请号：US14892696
申请日：2013-05-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Satoru Tanaka , Satoshi Yoshizaki , Yusuke Saito , Ryutaro Moriguchi , Noriyasu Adachi , Yosuke Matsumoto , Naoya Takagi
IPC: F02D41/26 , F02P5/15 , F02D37/02 , F02D41/00 , F02D41/34 , F02D23/00 , F02D41/30 , F02D13/02 , F02D11/10
Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque 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 operation in the first air-fuel ratio to operation in 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, an interval of time passes and the target air-fuel ratio is then switched from the first air-fuel ratio to a third air-fuel ratio that is an intermediate air-fuel ratio between the first air-fuel ratio and the second air-fuel ratio. The target air-fuel ratio is temporarily held at the third air-fuel ratio, and is thereafter switched from the third air-fuel ratio to the second air-fuel ratio.
-
公开(公告)号：US09581094B2
公开(公告)日：2017-02-28
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：US20160003175A1
公开(公告)日：2016-01-07
申请号：US14726872
申请日：2015-06-01
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yusuke Saito
CPC classification number: F02D41/0007 , F02B37/18 , F02D41/1475 , F02D2200/1002 , F02D2200/1004 , Y02T10/144
Abstract: When engine is in the lean operation, and a WGV is fully closed, a boundary between a stoichiometric region and a lean region is corrected by learning using a turbocharging pressure obtained from a turbocharging pressure sensor. When the engine is in the lean operation, and the WGV is fully closed, the turbocharging pressure obtained from the turbocharging pressure sensor is equal to the actual maximum value of the engine torque output when a throttle valve is fully opened and the engine is in the lean operation, that is, the turbocharging pressure required to achieve the torque on the actual boundary. Therefore, the boundary can be brought close to the actual boundary by learning using the turbocharging pressure obtained from the turbocharging pressure sensor when the engine is in the lean operation and the WGV is fully closed.
Abstract translation: 当发动机处于稀薄运转状态并且WGV完全关闭时，通过使用从涡轮增压压力传感器获得的涡轮增压压力的学习来校正化学计量区域和贫气区域之间的边界。 当发动机处于稀薄运转状态并且WGV完全关闭时，从涡轮增压压力传感器获得的涡轮增压压力等于当节气门完全打开且发动机处于发动机时的发动机转矩输出的实际最大值 精益运转，即实现实际边界扭矩所需的涡轮增压压力。 因此，当发动机处于稀薄运转并且WGV完全关闭时，通过学习使用从涡轮增压压力传感器获得的涡轮增压压力，可以使边界靠近实际边界。
-
公开(公告)号：US10006384B2
公开(公告)日：2018-06-26
申请号：US14693253
申请日：2015-04-22
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yosuke Matsumoto , Yasuhiro Kuze , Noriyasu Adachi , Yusuke Saito , Satoru Tanaka
CPC classification number: F02D41/0007 , F02B37/002 , F02B37/16 , F02B37/162 , F02B37/18 , F02B37/186 , F02D41/22 , F02D2200/0406 , Y02T10/144 , Y02T10/40
Abstract: A time point t0 represents a time point when a turbocharged engine is brought into a decelerating state, and an opening degree of a throttle valve is decreased. A time point t1 represents a time point when an opening command to an ABV is issued. When the ABV has an abnormality, and when a WGV is stuck open, a turbocharging pressure before the time point t0 shows a tendency to fall below a target turbocharging pressure, and a turbocharging pressure after the time point t1 reduces slowly to approach a predetermined pressure. When the WGV is stuck closed, a turbocharging pressure before the time point t0 shows a tendency to exceed the target turbocharging pressure, and the turbocharging pressure after the time point t1 reduces with vigor to approach the predetermined pressure.
-
公开(公告)号：US09903285B2
公开(公告)日：2018-02-27
申请号：US14895118
申请日：2013-06-03
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yusuke Saito , Noriyasu Adachi , Satoru Tanaka , Satoshi Yoshizaki , Ryutaro Moriguchi , Yosuke Matsumoto
IPC: F02D23/02 , F02P5/15 , F02D23/00 , F02D41/30 , F02D13/02 , F02D41/00 , F02B37/18 , F02D11/10 , F02P5/04 , F02P5/152
CPC classification number: F02D23/02 , F02B37/18 , F02D11/105 , F02D13/0234 , F02D23/00 , F02D41/0007 , F02D41/3017 , F02D41/3029 , F02D41/3064 , F02D2041/001 , F02D2200/0402 , F02D2200/1004 , F02P5/045 , F02P5/15 , F02P5/1502 , F02P5/1528 , Y02T10/144 , Y02T10/18 , Y02T10/46
Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque 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 being satisfied. After the virtual air-fuel ratio is changed, the target air-fuel ratio is maintained at the first air-fuel ratio until the ignition timing reaches a retardation limit. Subsequently, in response to the ignition timing reaching the retardation limit, the target air-fuel ratio is switched from the first air-fuel ratio to a third air-fuel ratio. After switching of the target air-fuel ratio, in response to a difference between the target air amount and an estimated air amount becoming equal to or less than a threshold value, the target air-fuel ratio is switched from the third air-fuel ratio to the second air-fuel ratio.
-
Patent Agency Ranking
公开(公告)号：US09644549B2
公开(公告)日：2017-05-09
申请号：US14726872
申请日：2015-06-01
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yusuke Saito
CPC classification number: F02D41/0007 , F02B37/18 , F02D41/1475 , F02D2200/1002 , F02D2200/1004 , Y02T10/144
Abstract: When engine is in the lean operation, and a WGV is fully closed, a boundary between a stoichiometric region and a lean region is corrected by learning using a turbocharging pressure obtained from a turbocharging pressure sensor. When the engine is in the lean operation, and the WGV is fully closed, the turbocharging pressure obtained from the turbocharging pressure sensor is equal to the actual maximum value of the engine torque output when a throttle valve is fully opened and the engine is in the lean operation, that is, the turbocharging pressure required to achieve the torque on the actual boundary. Therefore, the boundary can be brought close to the actual boundary by learning using the turbocharging pressure obtained from the turbocharging pressure sensor when the engine is in the lean operation and the WGV is fully closed.
-
公开(公告)号：US10100753B2
公开(公告)日：2018-10-16
申请号：US15047012
申请日：2016-02-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yusuke Saito , Noriyasu Adachi , Akira Eiraku
IPC: F02B33/40 , F02B37/22 , F02D17/02 , F02D23/02 , F02D41/00 , F02D41/30 , F01N13/10 , F02B37/00 , F02B37/007 , F02D13/06 , F02D41/18 , F02B37/18 , F02M26/06
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.
-
公开(公告)号：US20250010710A1
公开(公告)日：2025-01-09
申请号：US18674260
申请日：2024-05-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takeru SHIRASAWA , Masaaki Sato , Teruaki Haibara , Yusuke Saito
Abstract: A vehicle control device mounted on a vehicle capable of external charging, the vehicle control device being configured to: control to cause a state of the vehicle to a first state, in which a movement of the vehicle is prohibited, when receiving an instruction signal from an automatic charging device, which automatically connects a charging connector to a charging port; and release the first state under all of the following conditions are satisfied: a) there is a request for releasing the first state by a user of the vehicle while the vehicle is controlled under the first state, b) the charging connector is not connected to the charging port, and c) there is no obstacle in a traveling direction of the vehicle.
-
公开(公告)号：US11346293B2
公开(公告)日：2022-05-31
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：US11208936B2
公开(公告)日：2021-12-28
申请号：US16784738
申请日：2020-02-07
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 23 arranged in an exhaust passage 23 of an internal combustion engine in which a plurality of cylinders 61, 62, 63, 64 cooled by cooling water are provided and trapping particulate matter in exhaust gas, a wall temperature calculation part 51 configured to calculate or detect wall temperatures of a predetermined number of equal to or more than two cylinders among the plurality of cylinders, and a PM amount calculation part 52 configured to calculate an amount of particulate matter discharged from the plurality of cylinders to the exhaust passage based on the wall temperatures calculated or detected by the wall temperature calculation part.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.052 seconds)
