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公开(公告)号：US20170066435A1
公开(公告)日：2017-03-09
申请号：US15258129
申请日：2016-09-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keisuke MORISAKI , Takahiro NISHIGAKI , Daigo ANDO , Yuichiro KAWAI
IPC: B60W20/16
CPC classification number: B60W20/16 , B60K6/445 , B60W10/06 , B60W10/08 , B60W2510/0676 , B60W2530/12 , B60W2710/0677 , B60Y2300/474 , B60Y2300/476 , Y02T10/54 , Y02T10/6239 , Y02T10/6286
Abstract: When a starting point water temperature Twst is equal to or lower than a threshold value Twref1, catalyst warm-up control is executed, and when a cooling water temperature Tw becomes higher than the threshold value Twref1 or an operation time top of an engine becomes equal to or higher than a threshold value topref1, the control of the engine is shifted from the catalyst warm-up control to normal control. When the starting point water temperature Twst is higher than the threshold value Twref1 and is equal to or lower than a threshold value Twref2, PN suppression control is executed, and when the cooling water temperature Tw of the engine becomes higher than the threshold value Twref2 or the operation time top of the engine becomes equal to or higher than a threshold value topref2, the control of the engine is shifted from the PN suppression control to the normal control.
Abstract translation: 当起点水温Twst等于或低于阈值Twref1时，执行催化剂预热控制，并且当冷却水温度Tw变得高于阈值Twref1或发动机的操作时间顶部变得相等时 达到或高于阈值topref1时，发动机的控制从催化剂预热控制转移到正常控制。 当起点水温Twst高于阈值Twref1并且等于或低于阈值Twref2时，执行PN抑制控制，并且当发动机的冷却水温度Tw变得高于阈值Twref2或 发动机的运转时间顶部变为等于或高于阈值topref2，则发动机的控制从PN抑制控制转移到正常控制。
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公开(公告)号：US20200331453A1
公开(公告)日：2020-10-22
申请号：US16844565
申请日：2020-04-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
Abstract: A vehicle includes: a motor generator; an engine having a forced induction device; and a HV-ECU. An operation region of the engine includes a PM generating region in which an amount of particulate matters included in exhaust gas of the engine is more than a predetermined amount due to a load of the engine being abruptly increased during boosting by the forced induction device. The PM generating region is a low-rotation and high-torque region. When assistance by the motor generator is sufficiently obtained and the engine is operated in the PM generating region, the HV-ECU restricts an increasing rate of the torque of the engine to be less than or equal to an upper limit rate. The HV-ECU complements, by the torque of the motor generator, the torque of the engine restricted by restricting the increasing rate of the torque of the engine.
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公开(公告)号：US20200298824A1
公开(公告)日：2020-09-24
申请号：US16812955
申请日：2020-03-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
Abstract: An engine includes a turbocharger that boosts suctioned air to be fed to the engine. A boost line is determined on a map representing a relationship between the rotation speed of the engine and torque generated by the engine, and the turbocharger boosts suctioned air when the torque generated by the engine indicated by an operating point on the map exceeds the boost line. An HV-ECU controls the engine and a first MG to increase the rotation speed of the engine, depending on the atmospheric pressure, before the torque generated by the engine indicated by the operating point exceeds the boost line, and when the HV-ECU increases the rotation speed of the engine, for lower atmospheric pressure the HV-ECU controls the engine and the first MG to increase the rotation speed more than for higher atmospheric pressure.
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公开(公告)号：US20200290590A1
公开(公告)日：2020-09-17
申请号：US16811212
申请日：2020-03-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
Abstract: An HV-ECU performs processing including calculating requested system power, calculating requested engine power when an engine activation request has been issued, obtaining a turbo temperature, setting an operating point on a predetermined operating line when the turbo temperature is equal to or lower than a threshold value Ta, setting as the operating point, a position on a higher rotation speed side by a predetermined value along an equal power line when the turbo temperature is higher than the threshold value Ta, carrying out engine control, and carrying out MG control.
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公开(公告)号：US20170066438A1
公开(公告)日：2017-03-09
申请号：US15252762
申请日：2016-08-31
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshikazu ASAMI , Daigo ANDO , Hidekazu NAWATA
CPC classification number: B60W20/50 , B60K6/20 , B60K6/445 , B60K6/46 , B60W10/06 , B60W10/08 , B60W50/038 , B60W2050/0006 , B60W2530/00 , B60W2710/06 , B60W2710/0644 , B60W2710/0666 , B60W2710/0677 , B60W2710/08 , B60Y2200/92 , B60Y2300/26 , B60Y2300/43 , B60Y2300/60 , Y02T10/6239 , Y02T10/6286 , Y10S903/93
Abstract: A control system may include a first electronic control unit programmed to control the engine and a second electronic control unit programmed to control the rotary electric machine. The second electronic control unit may be programmed to output an engine command signal to the first electronic control unit through communication with the first electronic control unit. The first electronic control unit may be programmed to control the engine in accordance with the engine command signal received from the second electronic control unit, when a communication abnormality with the second electronic control unit does not occur; and to execute fixing operation control in which the engine is controlled such that at least one of speed, output power, and output torque of the engine becomes a corresponding fixed value, when the communication abnormality with the second electronic control unit occurs.
Abstract translation: 控制系统可以包括被编程以控制发动机的第一电子控制单元和被编程以控制旋转电机的第二电子控制单元。 第二电子控制单元可以被编程为通过与第一电子控制单元的通信来向第一电子控制单元输出发动机命令信号。 当不发生与第二电子控制单元的通信异常时，第一电子控制单元可以被编程为根据从第二电子控制单元接收的发动机命令信号来控制发动机; 并且当发生与第二电子控制单元的通信异常时，执行其中控制发动机的定影操作控制，使得发动机的速度，输出功率和输出扭矩中的至少一个变为相应的固定值。
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Patent Agency Ranking
公开(公告)号：US20210388795A1
公开(公告)日：2021-12-16
申请号：US17329150
申请日：2021-05-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Sohichi IMAI , Shigeki NAKAYAMA , Masanao IDOGAWA , Daigo ANDO
IPC: F02D43/04
Abstract: In an engine device, when executing normal control that performs fuel injection and ignition as control of an engine, a controller estimates, in the case of a stoichiometric air-fuel ratio, an exhaust gas temperature based on first thermal energy that is based on a combustion gas temperature, a combustion gas quantity, and specific heat of combustion gas, estimates, in the case of a lean air-fuel ratio, the exhaust gas temperature based on the first thermal energy and second thermal energy that is based on an air temperature, a surplus air quantity, and specific heat of air, and estimates, in the case of a rich air-fuel ratio, the exhaust gas temperature based on the first thermal energy and third thermal energy that is based on a fuel temperature, a surplus fuel quantity, specific heat of fuel, and evaporation latent heat of fuel.
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公开(公告)号：US20200294332A1
公开(公告)日：2020-09-17
申请号：US16797694
申请日：2020-02-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
IPC: G07C5/08 , B60K6/26 , B60K6/365 , F02B37/18 , B60W20/10 , B60W10/06 , B60W10/08 , F02D41/22 , F02D41/00
Abstract: In a hybrid vehicle, each of an engine and an MG1 is mechanically coupled to a drive wheel with a planetary gear being interposed. The planetary gear and an MG2 are configured such that motive power output from the planetary gear and motive power output from the MG2 are transmitted to the drive wheel as being combined. A controller makes WGV diagnosis for diagnosing whether or not a waste gate valve is normally controllable by issuing an instruction to a WGV actuator while the controller stops combustion in the engine and controls the MG1 and the MG2 in coordination to perform motoring of the engine during traveling of the hybrid vehicle.
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公开(公告)号：US20180195459A1
公开(公告)日：2018-07-12
申请号：US15854854
申请日：2017-12-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takeshi GENKO , Daigo ANDO , Chisa WATANABE , Shinya KONDO , Takahiro NISHIGAKI
CPC classification number: F02D41/3082 , F02D35/023 , F02D41/1454 , F02D41/3094 , F02D2200/0602 , F02M37/18
Abstract: An engine system includes an engine that, a fuel supply device, and an electronic control unit. The electronic control unit is configured to control the fuel supply device and to perform operation control of the engine by adjusting an injection ratio between fuel injection from an in-cylinder injection valve and a port injection valve according to the operation state of the engine. The electronic control unit is configured to perform imbalance determination. The electronic control unit is configured to change a region of fuel injection from a first fuel injection region to a second fuel injection region when the electronic control unit determines that a lean imbalance is occurred with respect to the fuel injection in which the fuel injection from the port injection valve is performed.
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公开(公告)号：US20200307550A1
公开(公告)日：2020-10-01
申请号：US16829122
申请日：2020-03-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
Abstract: A vehicle includes an engine including a forced induction device, a knock sensor and a crank angle sensor that detect an occurrence of LSPI, a battery that supplies electric power to a second motor generator, and an ECU. When an occurrence of the LSPI is detected, the ECU restricts a maximum torque, which can be output by the engine with the forced induction device, more than when an occurrence of the LSPI is not detected to prevent an engine operating point from being included in an LSPI area, and when an output of the engine becomes insufficient along with the restriction on the maximum torque, the engine compensates for an amount of the insufficient output with electric power supplied from the battery.
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公开(公告)号：US20200307548A1
公开(公告)日：2020-10-01
申请号：US16819928
申请日：2020-03-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Koichi YONEZAWA , Satoshi YOSHIZAKI , Osamu MAEDA , Daigo ANDO , Yoshikazu ASAMI , Kenji ITAGAKI , Shunsuke OYAMA , Koichiro MUTA
Abstract: An HV-ECU performs processing including controlling an engine to be in a non-forced induction operation state when an engine has been on and when an engine stop request has been issued, performing processing for stopping the engine when a predetermined first period has elapsed, restricting forced induction and output when the engine stop request has not been issued and when a current time point is immediately after start of the engine, canceling restriction when a predetermined second period has elapsed, and controlling the engine with a position on a higher rotation speed side than a current operating point along an equal power line being set as an operating point when the current time point is not immediately after start of the engine and when a negative pressure is insufficient.
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