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公开(公告)号：US12110005B2
公开(公告)日：2024-10-08
申请号：US17985883
申请日：2022-11-13
发明人： Takehiro Komatsu , Masahiro Kachi
IPC分类号： B60W20/40 , B60W10/02 , B60W10/06 , B60W40/10 , B60W40/105
CPC分类号： B60W20/40 , B60W10/02 , B60W10/06 , B60W40/105 , B60W2510/0638
摘要： A control device for a hybrid vehicle that includes an internal combustion engine, a motor, and a clutch provided between the internal combustion engine and the motor includes a first start control unit that starts the internal combustion engine by causing the motor to perform cranking, a second start control unit that starts the internal combustion engine without causing the motor to perform cranking, and a setting unit that sets a threshold for a rotational speed of the internal combustion engine according to a vehicle speed of the hybrid vehicle. When the rotational speed of the internal combustion engine is less than the threshold, the first start control unit starts the internal combustion engine. When the rotational speed of the internal combustion engine is equal to or higher than the threshold, the second start control unit starts the internal combustion engine.
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公开(公告)号：US11286869B2
公开(公告)日：2022-03-29
申请号：US17242302
申请日：2021-04-28
摘要： When a predetermined condition is satisfied, a flow rate ratio of a first passage flow rate to a second passage flow rate is estimated based on a throttle post pressure being a pressure on a downstream side of an intake pipe with respect to a throttle valve and an ejector pressure being a pressure of a suction port of an ejector. The first passage flow rate is a flow rate of an evaporated fuel gas flowing in a first purge passage. The second passage flow rate is a flow rate of the evaporated fuel gas flowing in a second purge passage. The first passage flow rate and the second passage flow rate are estimated based on the flow rate ratio and a valve passing flow rate being a flow rate of the evaporated fuel gas that passes through a purge control value.
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公开(公告)号：US11230983B2
公开(公告)日：2022-01-25
申请号：US17238210
申请日：2021-04-23
摘要： A fuel injection valve is controlled by setting a required injection amount using a required load factor of an engine and a purge correction amount. A purge control valve is controlled using a driving duty based on a required purge ratio when a purge of supplying the evaporated fuel gas to an intake pipe is being executed. During execution of the purge, the purge concentration-related value is learned based on an air-fuel ratio deviation that is a deviation of an air-fuel ratio from a required air-fuel ratio. The certainty of the purge concentration-related value is estimated using a first counter that reflects a number of times of learning of the purge concentration-related value during a first purge and that does not reflect a number of times of learning of the purge concentration-related value during a second purge.
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公开(公告)号：US11959449B2
公开(公告)日：2024-04-16
申请号：US18069900
申请日：2022-12-21
CPC分类号： F02N11/0859 , F02D41/062 , F02D41/3017 , F02N11/0851 , F02N2200/022 , F02N2200/041
摘要： A control device for a hybrid electric vehicle includes an electronic control unit. The electronic control unit is configured to perform a start-up control of shifting the connection and disconnection clutch to a coupled state at the time of starting the internal combustion engine to rotate the internal combustion engine by the driving torque of the electric motor, and starting the first fuel injection mode using the direct injection injector. The electronic control unit is configured to switch from the first fuel injection mode to a second fuel injection mode for using the port injector prior to an end of the start-up control when the number of times of combustion cycles of the internal combustion engine with the first fuel injection mode reaches a predetermined first target number of times.
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公开(公告)号：US11434837B2
公开(公告)日：2022-09-06
申请号：US17225106
申请日：2021-04-08
摘要： During execution of a purge, a purge concentration-related value is learned based on an air-fuel ratio deviation that is a deviation of an air-fuel ratio detected by an air-fuel ratio sensor from a required air-fuel ratio. In this case, the purge concentration-related value is updated using an update amount with a smaller absolute value when the purge is a second purge of supplying evaporated fuel gas to an intake pipe through a second purge passage than when the purge is a first purge of supplying the evaporated fuel gas to the intake pipe through a first purge passage.
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公开(公告)号：US11346296B2
公开(公告)日：2022-05-31
申请号：US17242304
申请日：2021-04-28
摘要： Fuel injection control of an engine is executed by setting a required injection amount and an air-fuel ratio correction amount. When setting conditions are met, the air-fuel ratio correction amount is set for a corresponding region to which a current intake air amount or load ratio belongs among a plurality of regions into which the range of the intake air amount or the load ratio is divided such that a region of a larger intake air amount or a higher load ratio becomes wider than a region of a smaller intake air amount or a lower load ratio. When purge conditions are met, a purge control valve is controlled such that purge of supplying an evaporated fuel gas to an intake pipe is executed based on a required purge ratio.
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公开(公告)号：US10450904B2
公开(公告)日：2019-10-22
申请号：US15933911
申请日：2018-03-23
发明人： Masahiro Kachi
IPC分类号： F01L1/00 , F01L1/344 , F02D41/06 , F02D41/22 , F02D41/04 , F01L13/00 , F02D13/02 , F02D41/14 , F02D41/00
摘要： An abnormality diagnosis system of an internal combustion engine that is installed on a vehicle and includes an actuator includes an electronic control unit. The electronic control unit receives vehicle outside information concerning a period of time for which the vehicle speed is less than a predetermined value, and determines whether the period for which the vehicle speed is less than the predetermined value is expected to be equal to or longer than a length of time required for an abnormality diagnosis of an abnormality diagnosis target device. The electronic control unit activates the actuator and starts the abnormality diagnosis as the vehicle speed becomes lower than the predetermined value, when it determines that the period for which the vehicle speed is lower than the predetermined value is expected to be equal to or longer than the time required for the abnormality diagnosis of the target device.
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8.发明授权公开(公告)号：US10233855B2
公开(公告)日：2019-03-19
申请号：US15483183
申请日：2017-04-10
发明人： Natsuhiro Kato , Masahiro Kachi , Tsutomu Miyazaki
摘要： A failure diagnosis apparatus for an internal combustion engine is provided. The internal combustion engine is mounted on a vehicle. The failure diagnosis apparatus includes an electronic control unit. The electronic control unit is configured to: measure an abnormal time in which an abnormal state where an accelerator pedal operation amount is equal to or larger than a first specified operation amount and a rate of actual output torque to requested torque is smaller than a specified rate value continues; and record specified data for a failure diagnosis of the internal combustion engine on a recording device in the cases where the abnormal time is equal to or longer than a first specified time that is set in advance and the accelerator pedal operation amount is equal to or larger than a second specified operation amount that is larger than the first specified operation amount.
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公开(公告)号：US11933238B2
公开(公告)日：2024-03-19
申请号：US18165263
申请日：2023-02-06
CPC分类号： F02D41/065 , F02D41/38 , F02D2200/0616 , F02D2200/101
摘要： A controller and a control method for an internal combustion engine, and a memory medium are provided. In a first combustion cylinder, first combustion is caused by control circuitry when the engine is restarted from a state where fuel combustion in cylinders is suspended. An automatic stopping process suspends the fuel combustion in the cylinders and controls a throttle valve to a closed state when a predetermined condition is satisfied. A first calculation process calculates an amount of fuel injected into the first combustion cylinder based on a position of the piston in the first combustion cylinder in a case where a rotation speed of a crankshaft obtained when the restart was requested is zero. A second calculation process calculates the injection amount based on the rotation speed in a case where the rotation speed obtained when the restart was requested is higher than zero.
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公开(公告)号：US11421612B2
公开(公告)日：2022-08-23
申请号：US17233554
申请日：2021-04-19
摘要： When first switching of switching from a first purge of supplying evaporated fuel gas to an intake pipe through a first purge passage to a second purge of supplying the evaporated fuel gas to the intake pipe through a second purge passage occurs and then second switching of switching from the second purge to the first purge occurs, a purge concentration-related value is corrected to a value closer to a first stored value that is the purge concentration-related value immediately before the first switching than to a second stored value that is the purge concentration-related value immediately before the second switching.
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