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公开(公告)号：US10364770B2
公开(公告)日：2019-07-30
申请号：US15080854
申请日：2016-03-25
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kazuya Miyaji
Abstract: The vehicle is a hybrid vehicle capable of traveling using motive power of at least one of an engine and a motor generator. The vehicle includes: a fuel pump; an injection valve injecting fuel supplied from the fuel pump to the engine; a fuel pressure sensor detecting a supply pressure of the fuel generated by the fuel pump; and an engine ECU. The engine ECU performs a fuel pressure increasing process of increasing the supply pressure of the fuel generated by the fuel pump, and conducts a fault diagnosis of the fuel pressure sensor based on a value detected by the fuel pressure sensor during the fuel pressure increasing process. The engine ECU conducts the fault diagnosis of the fuel pressure sensor in a case where the engine is being stopped and a vehicle speed is higher than a threshold value.
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公开(公告)号：US20160230693A1
公开(公告)日：2016-08-11
申请号：US15010934
申请日：2016-01-29
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kazuya Miyaji
IPC: F02D41/34
Abstract: A vehicle includes a port injection valve injecting fuel supplied from a feed pump to engine, and a low-pressure fuel pressure sensor detecting fuel pressure P generated by the feed pump. When a fault diagnosis of the low-pressure fuel pressure sensor is to be conducted, an engine ECU increases fuel pressure P to a diagnosis pressure P2 higher than a normal control pressure P1. Based on whether the output of the low-pressure fuel pressure sensor at this time is a value representing diagnosis pressure P2, the engine ECU determines whether the low-pressure fuel pressure sensor has a fault. In the case where the increase of fuel pressure P to diagnosis pressure P2 has caused excessive fuel (rich air-fuel ratio), the engine ECU changes the engine operating point so that the rotational speed of the engine is decreased while keeping the engine output in order to increase the load ratio.
Abstract translation: 一种车辆包括将从供给泵供给到发动机的燃料喷射的喷射阀，以及检测由供给泵产生的燃料压力P的低压燃料压力传感器。 当要进行低压燃料压力传感器的故障诊断时，发动机ECU将燃料压力P提高到高于正常控制压力P1的诊断压力P2。 根据此时的低压燃料压力传感器的输出是否为诊断压力P2的值，发动机ECU判断低压燃料压力传感器是否有故障。 在燃料压力P对诊断压力P2的增加引起燃料过多（空燃比过多）的情况下，发动机ECU改变发动机工作点，使发动机的转速降低，同时保持发动机输出 为了增加负载比。
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公开(公告)号：US09827845B2
公开(公告)日：2017-11-28
申请号：US14567748
申请日：2014-12-11
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kazuya Miyaji , Hitoki Sugimoto , Toshitake Sasaki , Yoshihisa Oda , Kenji Kimura
CPC classification number: B60K11/085 , F01P7/12
Abstract: A grille shutter is a device configured to adjust a temperature of coolant water of an engine by adjusting an amount of outside air introduced into a radiator of the engine. An ECU performs a failure diagnosis for the engine based on a temperature of coolant water of the engine. When the grille shutter is immovable in an opened state of the grille shutter regardless of an operating command to the grille shutter, the ECU renders the failure diagnosis process for the thermostat valve not to be executed. As a result, an incorrect operation of various controls executed based on a temperature of coolant water of the engine can be suppressed.
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公开(公告)号：US20160281628A1
公开(公告)日：2016-09-29
申请号：US15080854
申请日：2016-03-25
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kazuya Miyaji
CPC classification number: F02D41/222 , B60K6/445 , B60W20/50 , B60Y2200/92 , B60Y2300/432 , B60Y2306/15 , F02D41/042 , F02D2041/223 , F02D2200/0602 , F02M63/0285 , F02M69/046 , Y02T90/34 , Y10S903/904
Abstract: The vehicle is a hybrid vehicle capable of traveling using motive power of at least one of an engine and a motor generator. The vehicle includes: a fuel pump; an injection valve injecting fuel supplied from the fuel pump to the engine; a fuel pressure sensor detecting a supply pressure of the fuel generated by the fuel pump; and an engine ECU.The engine ECU performs a fuel pressure increasing process of increasing the supply pressure of the fuel generated by the fuel pump, and conducts a fault diagnosis of the fuel pressure sensor based on a value detected by the fuel pressure sensor during the fuel pressure increasing process. The engine ECU conducts the fault diagnosis of the fuel pressure sensor in a case where the engine is being stopped and a vehicle speed is higher than a threshold value.
Abstract translation: 发动机ECU执行增加由燃料泵产生的燃料的供给压力的燃料压力增加过程，并且在燃料增压过程期间，基于由燃料压力传感器检测到的值来进行燃料压力传感器的故障诊断。 在发动机停止并且车速高于阈值的情况下，发动机ECU进行燃料压力传感器的故障诊断。
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公开(公告)号：US09664166B2
公开(公告)日：2017-05-30
申请号：US14818377
申请日：2015-08-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keisuke Nagakura , Toshitake Sasaki , Kazuya Miyaji , Takashi Suzuki
CPC classification number: F02M59/20 , F02D41/042 , F02D41/062 , F02D41/222 , F02D41/3094 , F02D41/3854 , F02D2041/223 , F02D2041/3881 , F02D2200/0602
Abstract: An internal combustion engine includes a port injection valve and a feed pump that pressurizes the fuel. An engine ECU performs a stuck abnormality diagnosis of the fuel pressure sensor based on detection values of the fuel pressure sensor in first processing and second processing. The first processing includes setting a target pressure of the fuel in the storage section to a first pressure, and detecting a pressure of the fuel with the fuel pressure sensor. The second processing includes setting the target pressure of the fuel in a low-pressure delivery pipe to a second pressure lower than the first pressure, and detecting a pressure of the fuel. The engine ECU causes the first processing to be performed in response to a start signal that starts an internal combustion engine, and causes the second processing to be performed subsequent to the first processing.
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Patent Agency Ranking
公开(公告)号：US20160348616A1
公开(公告)日：2016-12-01
申请号：US15112024
申请日：2014-11-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshihisa Oda , Toshitake Sasaki , Kenji Kimura , Kazuya Miyaji
Abstract: In a vehicle provided with an engine, an EGR cooler for cooling EGR gas recirculated from an exhaust channel of the engine to an intake channel thereof by using a coolant, an electric pump for supplying the coolant to the EGR cooler, and a gas temperature sensor for detecting the temperature of the EGR gas temperature at the downstream of the EGR cooler, an ECU acquires a first gas temperature in a normally stable state where the electric pump is rotating, thereafter performs a coolant amount suppressing process to suppress the rotational speed of the electric pump, acquires a second gas temperature in a suppressed stable state after a predefined time has elapsed from the start of the coolant amount suppressing process, and determines that the EGR cooler is abnormal if a difference between the first gas temperature and the second gas temperature is less than a threshold value.
Abstract translation: 在设置有发动机的车辆中，使用冷却剂将EGR从发动机的排气通路再循环到其进气通路的EGR冷却器的EGR冷却器，向EGR冷却器供给冷却剂的电动泵以及气体温度传感器 为了检测EGR冷却器下游的EGR气体温度的温度，ECU取得电动泵正常稳定状态下的第一气体温度，然后进行冷却剂量抑制处理，以抑制 电动泵在从冷却剂量抑制处理开始经过预定时间后，获得处于抑制稳定状态的第二气体温度，并且如果第一气体温度和第二气体温度之间的差异，则确定EGR冷却器异常 小于阈值。
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公开(公告)号：US20180156098A1
公开(公告)日：2018-06-07
申请号：US15831715
申请日：2017-12-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kazuya Miyaji , Takashi Suzuki
CPC classification number: F01N9/002 , F01N3/023 , F01N11/00 , F01N2430/06 , F01N2590/11 , F01N2900/08 , Y02T10/47
Abstract: In a hybrid vehicle that includes an engine having a particulate matter removing filter configured to remove particulate matters in an exhaust system, when an increase in temperature of the particulate matter removing filter is requested in order to regenerate the particulate matter removing filter, dither control is executed to execute control such that an air-fuel ratio of the engine is repeated between a rich state and a lean state. Then, when the dither control is executed, control is executed such that the engine is operated at an operation point where the increase in temperature of the particulate matter removing filter is promoted among operation points where power output from the engine is retainable.
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8.发明申请VEHICLE INCLUDING SHUTTER DEVICE FOR ADJUSTING TEMPERATURE OF COOLANT WATER OF ENGINE 有权包括用于调节发动机冷却水温度的快门装置的车辆公开(公告)号：US20150191078A1
公开(公告)日：2015-07-09
申请号：US14567748
申请日：2014-12-11
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Kazuya Miyaji , Hitoki Sugimoto , Toshitake Sasaki , Yoshihisa Oda , Kenji Kimura
CPC classification number: B60K11/085 , F01P7/12
Abstract: A grille shutter is a device configured to adjust a temperature of coolant water of an engine by adjusting an amount of outside air introduced into a radiator of the engine. An ECU performs a failure diagnosis for the engine based on a temperature of coolant water of the engine. When the grille shutter is immovable in an opened state of the grille shutter regardless of an operating command to the grille shutter, the ECU renders the failure diagnosis process for the thermostat valve not to be executed. As a result, an incorrect operation of various controls executed based on a temperature of coolant water of the engine can be suppressed.
Abstract translation: 格栅挡板是构造成通过调节引入发动机的散热器的外部空气的量来调节发动机的冷却水的温度的装置。 ECU基于发动机的冷却水的温度对发动机进行故障诊断。 当栅格快门在格栅快门的打开状态下不可移动时，无论对格栅快门的操作命令如何，ECU使恒温阀的故障诊断处理不执行。 结果，可以抑制基于发动机的冷却水的温度执行的各种控制的不正确的操作。
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公开(公告)号：US10309286B2
公开(公告)日：2019-06-04
申请号：US15831715
申请日：2017-12-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kazuya Miyaji , Takashi Suzuki
Abstract: In a hybrid vehicle that includes an engine having a particulate matter removing filter configured to remove particulate matters in an exhaust system, when an increase in temperature of the particulate matter removing filter is requested in order to regenerate the particulate matter removing filter, dither control is executed to execute control such that an air-fuel ratio of the engine is repeated between a rich state and a lean state. Then, when the dither control is executed, control is executed such that the engine is operated at an operation point where the increase in temperature of the particulate matter removing filter is promoted among operation points where power output from the engine is retainable.
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公开(公告)号：US09822739B2
公开(公告)日：2017-11-21
申请号：US15112024
申请日：2014-11-12
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihisa Oda , Toshitake Sasaki , Kenji Kimura , Kazuya Miyaji
Abstract: In a vehicle provided with an engine, an EGR cooler for cooling EGR gas recirculated from an exhaust channel of the engine to an intake channel thereof by using a coolant, an electric pump for supplying the coolant to the EGR cooler, and a gas temperature sensor for detecting the temperature of the EGR gas temperature at the downstream of the EGR cooler, an ECU acquires a first gas temperature in a normally stable state where the electric pump is rotating, thereafter performs a coolant amount suppressing process to suppress the rotational speed of the electric pump, acquires a second gas temperature in a suppressed stable state after a predefined time has elapsed from the start of the coolant amount suppressing process, and determines that the EGR cooler is abnormal if a difference between the first gas temperature and the second gas temperature is less than a threshold value.
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