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1. 发明授权

US10920712B2 Internal combustion engine 有权
公开(公告)号：US10920712B2
公开(公告)日：2021-02-16
申请号：US16433153
申请日：2019-06-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta , Susumu Hashimoto , Shinji Sadakane , Hiroshi Tada , Fumio Takamiya , Akira Hojo
IPC分类号： F02F3/26 , F02B75/22 , F02B75/18 , F16H57/025 , F16H57/02
摘要： An internal combustion engine has a plurality of cylinders and transmission arranged adjoining the engine. If designating an average height of a combustion chamber in a region inside from a virtual cylindrical surface passing through center of a valve body of an intake valve and extending in a circumferential direction of each cylinder when a piston is at top dead center, as “center height”, and designating average of a height of the combustion chamber in a region outside from the virtual cylindrical surface when the piston is at top dead center, as “peripheral height”, the combustion chambers form a center height of a transmission side cylinder positioned most to the transmission side among the plurality of cylinders is higher than center heights of usual cylinders including one cylinder other than the transmission side cylinder and a peripheral height at the transmission side cylinder lower than peripheral heights of usual cylinders.

2. 发明授权

US09784222B2 Controller for internal combustion engine 有权
公开(公告)号：US09784222B2
公开(公告)日：2017-10-10
申请号：US15072770
申请日：2016-03-17
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta
IPC分类号： F02M33/04 , F02M25/08 , F01N3/10 , F02D41/00 , F02D41/14 , F02B25/14 , F02D13/02 , F02D41/30
CPC分类号： F02M25/0836 , F01N3/101 , F02B25/145 , F02D13/0261 , F02D41/0007 , F02D41/0032 , F02D41/0045 , F02D41/1446 , F02D41/1454 , F02D41/3017 , F02D2041/001 , F02D2200/0406 , F02M25/0854 , Y02T10/144 , Y02T10/18 , Y02T10/22 , Y02T10/47
摘要： A controller for an internal combustion engine is provided. The engine includes a compressor, a three way catalyst, a canister, an evaporated fuel passage, an ejector, and a purge control valve. The controller includes an ECU. The ECU is configured to decrease an opening degree of the purge control valve in response to an increase in pressure on the downstream side of the compressor in a lean supercharging range. The is a range in which an operation air-fuel ratio of the internal combustion engine is leaner than a theoretical air-fuel ratio of the internal combustion engine, and in which the pressure on the downstream side of the compressor is higher than pressure on the upstream side of the compressor.

3. 发明申请

US20150167578A1 INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机
公开(公告)号：US20150167578A1
公开(公告)日：2015-06-18
申请号：US14563147
申请日：2014-12-08
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Shintaro Hotta
IPC分类号： F02D41/30 , F02B37/18
CPC分类号： F02D41/3035 , F02B23/104 , F02B29/0406 , F02B37/18 , F02B2023/106 , F02B2275/48 , F02D13/0207 , F02D41/0007 , F02D41/3064 , F02D41/3094 , F02D2041/001 , F02D2041/0015 , F02M35/10177 , Y02T10/125 , Y02T10/144 , Y02T10/146 , Y02T10/18
摘要： An engine control device controls control amounts of a variable valve mechanism and a spark plug, the control amounts in a homogeneous lean operation region set in a first load region are different from that in a non-lean operation region which is a stoichiometric or rich operation region set in a second load region higher than the first load region. The control device performs control, in other operation region set in a third load region between the first and second load region, so that an air-fuel ratio of the internal combustion engine is equal to that of non-lean operation region, the control amount of the variable valve mechanism is equal to that of homogeneous lean operation region and the control amount of the spark plug is equal to that of the non-lean operation region in accordance with an operation amount of an accelerator pedal.
摘要翻译：发动机控制装置控制可变气门机构和火花塞的控制量，在第一负载区域中设定的均匀稀薄运行区域中的控制量与作为化学计量或浓缩操作的非稀薄运行区域中的控制量不同区域设置在高于第一负载区域的第二负载区域中。控制装置在设置在第一和第二负载区域之间的第三负载区域中的其他工作区域中进行控制，使得内燃机的空燃比等于非稀燃运行区域的空燃比，控制量的可变气门机构与稀薄运转区域相同，并且根据加速踏板的运转量，火花塞的控制量等于非稀薄运转区域的控制量。

4. 发明申请

US20220145820A1 ENGINE MISFIRE DETECTION DEVICE FOR HYBRID ELECTRIC VEHICLE 有权
公开(公告)号：US20220145820A1
公开(公告)日：2022-05-12
申请号：US17522239
申请日：2021-11-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta , Yuya Takahashi , Hiroki Iguma , Hideto Wakabayashi
IPC分类号： F02D41/14 , F02D41/00 , G01M15/11 , F02D29/06
摘要： An engine misfire detection device is mounted on a hybrid electric vehicle that includes an internal combustion engine and a generator. The internal combustion engine has a plurality of cylinders and a crankshaft and is dedicated to power generation. The generator is connected to the crankshaft via a torsional damper. The engine misfire detection device includes a generator rotation angle sensor and a processor. The generator rotation angle sensor detects the rotation angle of the generator rotating shaft. The processor is configured to execute a misfire detection process. The misfire detection process includes a first misfire detection process of determining that the internal combustion engine has misfired when an amplitude correlation value that correlates with the magnitude of amplitude of rotation speed of the generator rotating shaft and is detected by the generator rotation angle sensor is greater than a determination threshold value.

5. 发明授权

US11118532B2 Spark-ignited internal combustion engine 有权
公开(公告)号：US11118532B2
公开(公告)日：2021-09-14
申请号：US16664949
申请日：2019-10-28
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta
IPC分类号： F02F3/14 , F02F3/26 , F01P3/00 , F02B23/06 , F16J1/00
摘要： A top surface of the piston includes a first region. A heat shielding film is formed on the first area. The top surface further includes a second region. There is no heat shielding film formed on the second region. Instead, the second area is mirror-finished. The top surface includes a central portion. A valve recess portion is formed on an intake side of the central portion. A squish portion is formed the intake side of the valve recess portion. The first area includes at least the central portion. The second area includes at least the squish portion.

6. 发明授权

US10473047B2 Apparatus and method for controlling an internal combustion engine 有权
公开(公告)号：US10473047B2
公开(公告)日：2019-11-12
申请号：US15531060
申请日：2015-11-27
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta
IPC分类号： F02D41/02 , F02B37/16 , F02D41/40 , F02D13/02 , F02D41/00 , F02B27/02 , F02B29/04 , F02B37/00 , F02B37/013 , F02D41/22 , F02B27/00
摘要： An engine includes an exhaust gas control apparatus that is configured to store NOx and react NOx with a reduction agent. A control device for the engine includes an electronic control unit. The electronic control unit is configured to: (i) execute a rich spike control, the rich spike control is a control executed to temporarily change an in-cylinder air-fuel ratio from a leaner air-fuel ratio than the stoichiometric air-fuel ratio to the stoichiometric air-fuel ratio or a richer air-fuel ratio than the stoichiometric air-fuel ratio, and (ii) vary an overlap amount of an intake valve and an exhaust valve such that the overlap amount is less during execution of the rich spike control than during non-execution of the rich spike control, in an operation range where a pressure of the intake port becomes higher than a pressure of the exhaust port.

7. 发明申请

US20160061140A1 CONTROL METHOD OF INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机控制方法
公开(公告)号：US20160061140A1
公开(公告)日：2016-03-03
申请号：US14825521
申请日：2015-08-13
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Shintaro Hotta
IPC分类号： F02D41/30 , F02D41/00 , F02D41/10
CPC分类号： F02D41/3094 , F02D13/0261 , F02D13/0276 , F02D21/08 , F02D41/0007 , F02D41/005 , F02D41/105 , F02D2041/001 , F02M69/046 , Y02T10/144 , Y02T10/18 , Y02T10/47
摘要： A control method takes an internal combustion engine including a port injection valve that injects fuel into an intake port and a cylinder injection valve that directly injects fuel into a combustion chamber as a control target. In the control method, when request torque to the internal combustion engine is in a first torque range, lean combustion is realized by port asynchronous injection. When the request torque is increased from the first torque range to a second torque range which is higher than the first torque range, fuel injection is switched to port synchronous injection from port asynchronous injection, and lean combustion is realized by the port synchronous injection. When the request torque is increased from the second torque range to a third torque range that is higher than the second torque range, the port synchronous injection is stopped, and lean combustion is realize by cylinder injection.
摘要翻译：一种控制方法，采用内燃机，该内燃机包括将燃料喷射到进气口中的进气口喷射阀和将燃料直接喷射到作为控制对象的燃烧室中的气缸喷射阀。在该控制方法中，当对内燃机的要求转矩处于第一转矩范围时，通过端口异步注入实现稀燃。当请求扭矩从第一转矩范围增加到高于第一转矩范围的第二转矩范围时，燃料喷射从端口异步喷射切换到端口同步喷射，并且通过端口同步喷射实现稀燃。当请求扭矩从第二扭矩范围增加到高于第二扭矩范围的第三转矩范围时，端口同步喷射停止，并且通过气缸喷射实现稀燃。

8. 发明申请

US20150353092A1 CONTROL APPARATUS FOR VEHICLE 有权
标题翻译：车辆控制装置
公开(公告)号：US20150353092A1
公开(公告)日：2015-12-10
申请号：US14718454
申请日：2015-05-21
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Shintaro Hotta
IPC分类号： B60W30/188 , B60W10/101 , B60W10/06 , F02D41/02 , F02D41/00
CPC分类号： B60W30/1882 , B60W10/06 , B60W10/101 , B60W2710/0622 , B60W2710/1005 , F02D41/0007 , F02D41/0225 , F02D41/10 , F02D41/3017 , F02D2200/0406 , Y02T10/144
摘要： If operation mode of an engine is transitioned from natural aspiration lean-burn operation mode to supercharged lean-burn operation mode, an engine control portion temporarily changes an air-fuel ratio from a lean air-fuel ratio to a stoichiometric air-fuel ratio or a rich air-fuel ratio. When the air-fuel ratio is changed from the lean air-fuel ratio to the stoichiometric air-fuel ratio or the rich air-fuel ratio by the engine control portion, a transmission control portion switches a gear ratio of the automatic transmission to a gear ratio that provides an engine rotational speed at which the engine output becomes equal to an engine output before the air-fuel ratio is changed and also at which an intake pipe pressure becomes equal to or closest to an intake pipe pressure before the air-fuel ratio is changed.
摘要翻译：如果发动机的运转模式从自然吸气稀燃运行模式转变为增压稀燃运行模式，则发动机控制部临时将空燃比从稀空燃比变为理论空燃比，或者丰富的空燃比。当通过发动机控制部将空燃比从稀空燃比变为理论空燃比或浓空燃比时，变速器控制部将自动变速器的齿轮比切换到齿轮比率，其提供在空燃比改变之前发动机输出等于发动机输出的发动机转速，并且进气管压力等于或最接近空燃比前的进气管压力改变了

9. 发明授权

US11378035B2 Engine control device 有权
公开(公告)号：US11378035B2
公开(公告)日：2022-07-05
申请号：US17060210
申请日：2020-10-01
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yoshiharu Hirata , Shintaro Hotta , Takashi Amano
IPC分类号： F02D41/38 , B60K6/26 , F02D9/08 , B60K6/24 , B60K6/46 , F02D41/14 , F02D41/28
摘要： An engine control device includes a processor configured to execute a fuel injection control including: a first fuel injection processing for injecting an amount of fuel according to a first intake air amount based on an intake air flow rate detected by an air flow sensor; and a second fuel injection processing for injecting an amount of fuel according to a second intake air amount based on a throttle opening degree detected by a throttle position sensor. The processor selects the first fuel injection processing when a pulsation rate of the intake air flow rate is equal to or lower than a pulsation rate threshold value, and selects the second fuel injection processing when the pulsation rate is higher than the pulsation rate threshold value. The pulsation rate threshold value is smaller when a temperature correlation value is low than when the temperature correlation value is high.

10. 发明授权

US10724425B2 Cylinder head of internal combustion engine 有权
公开(公告)号：US10724425B2
公开(公告)日：2020-07-28
申请号：US16383665
申请日：2019-04-15
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shintaro Hotta
IPC分类号： F02B23/00 , F02F1/24 , F02B23/10
摘要： An internal combustion engine includes a plurality of cylinders, and these cylinders are divided into a first group where the air-fuel mixture is burned in the entire operating region and a second group where the air-fuel mixture is not burned in part of the operating region. The engine comprising: an intake opening opened and closed by an intake valve; an exhaust opening opened and closed by an exhaust valve; and a mask part having a wall surface extending along an outer edge of the intake opening toward the inside of the combustion chamber at an opposite side from the exhaust opening side. The mask part is configured so that a clearance from a passage surface of an edge part of the intake valve to the wall surface of the mask part is smaller at each cylinder of the first group than each cylinder of the second group.

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